/* roulang page: index */
:root {
            --bg-deep: #1A1D23;
            --bg-card: #FFFFFF;
            --bg-light: #FAFAFA;
            --bg-section: #F5F5F5;
            --brand-red: #C92A2A;
            --brand-orange: #E8590C;
            --text-primary: #1A1D23;
            --text-secondary: #495057;
            --text-muted: #6C757D;
            --text-light: #ADB5BD;
            --border-color: #E9ECEF;
            --border-input: #DEE2E6;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --transition: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --nav-width: 280px;
            --container-max: 1280px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--text-primary);
            background: #fff;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 分屏布局 ===== */
        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        /* ===== 左侧导航 ===== */
        .side-nav {
            width: var(--nav-width);
            min-width: var(--nav-width);
            background: var(--bg-deep);
            color: #fff;
            display: flex;
            flex-direction: column;
            padding: 28px 24px 24px;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            overflow-y: auto;
            transition: transform 0.35s ease;
        }

        .side-nav .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 36px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .side-nav .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--brand-red);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .side-nav .nav-links {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav .nav-links a {
            display: flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: #B0B8C1;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.01em;
        }
        .side-nav .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .side-nav .nav-links a.active {
            color: #fff;
            background: rgba(201, 42, 42, 0.25);
        }
        .side-nav .nav-links a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--brand-red);
            border-radius: 0 3px 3px 0;
        }
        .side-nav .nav-cta {
            margin-top: auto;
            padding-top: 20px;
        }
        .side-nav .nav-cta .btn-nav-cta {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px 20px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }
        .side-nav .nav-cta .btn-nav-cta:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 右侧主区域 ===== */
        .main-area {
            flex: 1;
            margin-left: var(--nav-width);
            width: calc(100% - var(--nav-width));
            min-height: 100vh;
        }

        /* ===== 汉堡按钮 ===== */
        .hamburger-btn {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            width: 40px;
            height: 40px;
            background: var(--bg-deep);
            border-radius: var(--radius-sm);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border: none;
            box-shadow: var(--shadow-md);
        }
        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 999;
            transition: opacity 0.35s ease;
        }
        .nav-overlay.show {
            display: block;
        }

        /* ===== Hero Section ===== */
        .hero-section {
            background: var(--bg-deep);
            color: #fff;
            position: relative;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.22;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 29, 35, 0.85) 0%, rgba(26, 29, 35, 0.6) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }
        .hero-bento {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
            align-items: start;
        }
        .hero-main-block {
            grid-row: 1 / 3;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 20px;
        }
        .hero-main-block .hero-badge {
            display: inline-block;
            background: rgba(232, 89, 12, 0.2);
            color: var(--brand-orange);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            width: fit-content;
            border: 1px solid rgba(232, 89, 12, 0.35);
        }
        .hero-main-block h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 700;
            line-height: 1.15;
            letter-spacing: -0.01em;
            color: #fff;
        }
        .hero-main-block .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            max-width: 520px;
        }
        .hero-cta-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 13px 28px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            border: 2px solid var(--brand-red);
        }
        .btn-primary:hover {
            background: #B02525;
            border-color: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 13px 28px;
            background: transparent;
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: scale(1.03);
        }
        .hero-mini-cards {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .hero-mini-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius);
            padding: 18px 20px;
            backdrop-filter: blur(6px);
            transition: all var(--transition);
        }
        .hero-mini-card:hover {
            background: rgba(255, 255, 255, 0.13);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-3px);
        }
        .hero-mini-card .mini-icon {
            font-size: 1.5rem;
            margin-bottom: 6px;
        }
        .hero-mini-card .mini-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: #fff;
        }
        .hero-mini-card .mini-desc {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 2px;
        }

        /* ===== Section通用 ===== */
        section {
            padding: 64px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }
        .section-header .section-sub {
            color: var(--text-muted);
            font-size: 1rem;
            margin-top: 8px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-dark {
            background: var(--bg-deep);
            color: #fff;
        }
        .section-dark h2 {
            color: #fff;
        }
        .section-dark .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-light {
            background: var(--bg-light);
        }
        .section-white {
            background: #fff;
        }

        /* ===== 指标看板 ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-deep);
        }
        .metric-card {
            text-align: center;
            padding: 32px 20px;
            position: relative;
            transition: all var(--transition);
            cursor: default;
        }
        .metric-card:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: rgba(255, 255, 255, 0.15);
        }
        .metric-card:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .metric-card .metric-icon {
            font-size: 1.8rem;
            margin-bottom: 10px;
            opacity: 0.9;
        }
        .metric-card .metric-number {
            font-size: clamp(2rem, 4vw, 3.5rem);
            font-weight: 800;
            color: #fff;
            line-height: 1;
            transition: all var(--transition);
        }
        .metric-card:hover .metric-number {
            color: var(--brand-orange);
            transform: scale(1.06);
        }
        .metric-card .metric-unit {
            font-size: 0.9rem;
            color: var(--brand-orange);
            font-weight: 600;
            margin-top: 4px;
        }
        .metric-card .metric-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 6px;
        }

        /* ===== 服务矩阵 ===== */
        .service-matrix {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }
        .service-card-large {
            grid-row: 1 / 3;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 32px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }
        .service-card-large:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateY(-4px);
        }
        .service-card-large .svc-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            margin-bottom: 8px;
        }
        .service-card-large .svc-icon {
            font-size: 2rem;
        }
        .service-card-large h3 {
            font-size: 1.4rem;
            font-weight: 600;
        }
        .service-card-large p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .service-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .service-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateY(-4px);
        }
        .service-card .svc-icon {
            font-size: 1.5rem;
        }
        .service-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.5;
        }
        .service-arrow {
            color: var(--brand-red);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition);
        }
        .service-card:hover .service-arrow,
        .service-card-large:hover .service-arrow {
            gap: 8px;
        }
        .service-row-bottom {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 20px;
        }

        /* ===== 品牌介绍 ===== */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            padding: 40px;
        }
        .brand-intro .brand-text h3 {
            font-size: 1.6rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .brand-intro .brand-text p {
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 0.95rem;
            margin-bottom: 16px;
        }
        .brand-intro .brand-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .brand-tag {
            background: #fff;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
        }
        .brand-intro .brand-image {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
        }

        /* ===== 结果对比 ===== */
        .compare-table {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-sm);
        }
        .compare-row {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            padding: 16px 24px;
            align-items: center;
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition);
        }
        .compare-row:last-child {
            border-bottom: none;
        }
        .compare-row.header-row {
            background: var(--bg-deep);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border-bottom: 2px solid var(--brand-red);
        }
        .compare-row:hover:not(.header-row) {
            background: #FFF8F5;
        }
        .compare-dimension {
            font-weight: 500;
            color: var(--text-primary);
        }
        .compare-old {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .compare-new {
            color: var(--brand-red);
            font-weight: 600;
            font-size: 0.9rem;
        }

        /* ===== 热门专题 ===== */
        .topic-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .topic-tag {
            padding: 10px 20px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            cursor: pointer;
        }
        .topic-tag:hover {
            border-color: var(--brand-red);
            color: var(--brand-red);
            background: #FFF5F5;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        /* ===== 保障图标条 ===== */
        .guarantee-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .guarantee-item {
            padding: 24px 16px;
            transition: all var(--transition);
        }
        .guarantee-item .g-icon {
            font-size: 2.2rem;
            margin-bottom: 10px;
        }
        .guarantee-item .g-title {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
        }
        .guarantee-item .g-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== 新闻中心 ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-sm);
        }
        .news-item {
            display: grid;
            grid-template-columns: 80px 1fr 100px;
            gap: 16px;
            padding: 18px 24px;
            align-items: center;
            transition: all var(--transition);
            border-bottom: 1px solid var(--border-color);
            cursor: pointer;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:nth-child(even) {
            background: #FAFAFA;
        }
        .news-item:hover {
            background: #FFF5F5;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
            border-left: 3px solid var(--brand-red);
        }
        .news-date {
            text-align: center;
            background: #F0F0F0;
            border-radius: var(--radius-sm);
            padding: 8px 6px;
        }
        .news-date .day {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--brand-red);
            line-height: 1;
        }
        .news-date .month {
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .news-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .news-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.4;
        }
        .news-arrow {
            text-align: right;
            font-weight: 600;
            color: var(--brand-red);
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .news-item:hover .news-arrow {
            transform: translateX(4px);
        }

        /* ===== 票种对比 ===== */
        .plan-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .plan-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .plan-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .plan-card.featured {
            border-color: var(--brand-red);
            box-shadow: var(--shadow-md);
            background: #FFFDFD;
        }
        .plan-card.featured::before {
            content: '推荐';
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--brand-red);
            color: #fff;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .plan-card .plan-name {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .plan-card .plan-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 8px 0 16px;
        }
        .plan-card .plan-features {
            text-align: left;
            margin: 16px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 2;
        }
        .plan-card .plan-features span {
            display: block;
            padding-left: 20px;
            position: relative;
        }
        .plan-card .plan-features span::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--brand-red);
            font-weight: 700;
        }
        .plan-card .btn-plan {
            display: inline-block;
            width: 100%;
            padding: 12px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            border: 2px solid var(--brand-red);
            background: transparent;
            color: var(--brand-red);
            cursor: pointer;
        }
        .plan-card.featured .btn-plan {
            background: var(--brand-red);
            color: #fff;
        }
        .plan-card .btn-plan:hover {
            background: var(--brand-red);
            color: #fff;
            transform: scale(1.03);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            user-select: none;
            gap: 12px;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: #FAFAFA;
        }
        .faq-question .faq-num {
            width: 28px;
            height: 28px;
            background: var(--bg-deep);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .faq-question .faq-icon {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-red);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease, padding 0.5s ease;
            padding: 0 20px;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* ===== 转化表单 ===== */
        .cta-form-section {
            background: var(--brand-red);
            color: #fff;
            text-align: center;
            padding: 56px 0;
        }
        .cta-form-section h2 {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .cta-form-section .cta-sub {
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            font-size: 1rem;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 700px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 160px;
            padding: 13px 16px;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            font-size: 0.95rem;
            transition: all var(--transition);
            background: #fff;
            color: var(--text-primary);
        }
        .cta-form input:focus {
            border-color: #fff;
            box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.25);
        }
        .btn-submit {
            padding: 13px 32px;
            background: #fff;
            color: var(--brand-red);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 2px solid #fff;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-submit:hover {
            background: #F5F5F5;
            transform: scale(1.04);
            box-shadow: var(--shadow-lg);
        }

        /* ===== 合作伙伴 ===== */
        .partner-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            align-items: center;
        }
        .partner-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 24px;
            text-align: center;
            transition: all var(--transition);
            font-weight: 600;
            color: var(--text-muted);
            font-size: 0.9rem;
            min-height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-sm);
        }
        .partner-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateY(-3px);
            color: var(--text-primary);
        }

        /* ===== 数据安全 ===== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .security-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .security-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--brand-red);
        }
        .security-card .sec-icon {
            font-size: 2.2rem;
            margin-bottom: 12px;
        }
        .security-card h4 {
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .security-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ===== 底部CTA条 ===== */
        .bottom-cta-bar {
            background: var(--bg-deep);
            color: #fff;
            text-align: center;
            padding: 40px 0;
        }
        .bottom-cta-bar h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .bottom-cta-bar p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #14161A;
            color: #B0B8C1;
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.6;
            color: #8A9099;
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #8A9099;
            padding: 5px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.8rem;
            color: #6A7078;
            line-height: 1.8;
        }
        .footer-bottom a {
            color: #8A9099;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom .sep {
            margin: 0 8px;
            color: #444;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .side-nav {
                width: 240px;
                min-width: 240px;
                padding: 20px 16px;
            }
            .main-area {
                margin-left: 240px;
                width: calc(100% - 240px);
            }
            .hero-bento {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .hero-main-block {
                grid-row: auto;
            }
            .hero-mini-cards {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .hero-mini-card {
                flex: 1;
                min-width: 180px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metric-card:nth-child(2)::after {
                display: none;
            }
            .service-matrix {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .service-card-large {
                grid-row: auto;
            }
            .service-row-bottom {
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-intro {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .plan-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .plan-card.featured {
                grid-column: 1 / -1;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .partner-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .guarantee-strip {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .hamburger-btn {
                display: flex;
            }
            .side-nav {
                transform: translateX(-100%);
                width: 280px;
                min-width: 280px;
            }
            .side-nav.open {
                transform: translateX(0);
            }
            .nav-overlay.show {
                display: block;
            }
            .main-area {
                margin-left: 0;
                width: 100%;
            }
            section {
                padding: 40px 0;
            }
            .hero-section {
                min-height: auto;
                padding: 20px 0;
            }
            .hero-content {
                padding: 40px 0;
            }
            .hero-bento {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .hero-mini-cards {
                flex-direction: column;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0;
            }
            .metric-card {
                padding: 20px 12px;
            }
            .metric-card:nth-child(2)::after {
                display: none;
            }
            .metric-card:nth-child(odd)::after {
                display: block;
            }
            .service-matrix {
                grid-template-columns: 1fr;
            }
            .service-row-bottom {
                grid-template-columns: 1fr;
            }
            .brand-intro {
                grid-template-columns: 1fr;
                padding: 24px;
            }
            .brand-intro .brand-image {
                height: 200px;
            }
            .compare-row {
                grid-template-columns: 1fr 1fr 1fr;
                padding: 12px 14px;
                font-size: 0.8rem;
            }
            .plan-grid {
                grid-template-columns: 1fr;
            }
            .plan-card.featured {
                grid-column: auto;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .cta-form {
                flex-direction: column;
                padding: 0 16px;
            }
            .cta-form input {
                min-width: auto;
                width: 100%;
            }
            .partner-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .news-item {
                grid-template-columns: 60px 1fr 60px;
                padding: 14px 16px;
                gap: 10px;
            }
            .news-date .day {
                font-size: 1.1rem;
            }
            .news-info h4 {
                font-size: 0.85rem;
            }
            .news-info p {
                font-size: 0.75rem;
            }
            .news-arrow {
                font-size: 0.75rem;
            }
            .container {
                padding: 0 14px;
            }
        }

        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
            }
            .metric-card::after {
                display: none !important;
            }
            .compare-row {
                grid-template-columns: 1fr;
                gap: 4px;
                padding: 10px 12px;
            }
            .compare-row.header-row {
                display: none;
            }
            .compare-row::before {
                content: attr(data-dimension);
                font-weight: 600;
                font-size: 0.85rem;
                color: var(--text-primary);
                display: block;
            }
            .partner-grid {
                grid-template-columns: 1fr 1fr;
            }
            .guarantee-strip {
                grid-template-columns: 1fr;
            }
            .hero-main-block h1 {
                font-size: 1.8rem;
            }
            .btn-primary,
            .btn-outline-light {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #1A1D23;
            --bg-card: #FFFFFF;
            --bg-light: #FAFAFA;
            --bg-section: #F5F5F5;
            --brand-red: #C92A2A;
            --brand-orange: #E8590C;
            --text-primary: #1A1D23;
            --text-secondary: #495057;
            --text-muted: #6C757D;
            --text-light: #ADB5BD;
            --border-color: #E9ECEF;
            --border-input: #DEE2E6;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --transition: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --nav-width: 280px;
            --container-max: 1280px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            box-sizing: border-box;
        }

        *,
        *::before,
        *::after {
            box-sizing: inherit;
        }

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--text-primary);
            background: #fff;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            margin: 0;
            padding: 0;
            display: flex;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
        }

        p {
            margin: 0;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 左侧全局导航 ===== */
        .side-nav {
            width: var(--nav-width);
            min-width: var(--nav-width);
            background: var(--bg-deep);
            color: #fff;
            display: flex;
            flex-direction: column;
            padding: 28px 24px 24px;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            overflow-y: auto;
            transition: transform 0.35s ease;
        }

        .side-nav .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 36px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .side-nav .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--brand-red);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .side-nav .nav-links {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav .nav-links a {
            display: flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: #B0B8C1;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.01em;
        }

        .side-nav .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .side-nav .nav-links a.active {
            color: #fff;
            background: rgba(201, 42, 42, 0.25);
        }

        .side-nav .nav-links a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--brand-red);
            border-radius: 0 3px 3px 0;
        }

        .side-nav .nav-cta {
            margin-top: auto;
            padding-top: 20px;
        }

        .side-nav .nav-cta .btn-nav-cta {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px 20px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .side-nav .nav-cta .btn-nav-cta:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 右侧主区域 ===== */
        .main-area {
            flex: 1;
            margin-left: var(--nav-width);
            width: calc(100% - var(--nav-width));
            min-height: 100vh;
        }

        /* ===== 汉堡按钮 ===== */
        .hamburger-btn {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            width: 40px;
            height: 40px;
            background: var(--bg-deep);
            border-radius: var(--radius-sm);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border: none;
            box-shadow: var(--shadow-md);
        }

        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 999;
            transition: opacity 0.35s ease;
        }

        .nav-overlay.show {
            display: block;
        }

        /* ===== 服务详情页 Hero ===== */
        .service-hero {
            background: var(--bg-deep);
            color: #fff;
            padding: 60px 40px 50px;
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .service-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }

        .service-hero .hero-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }

        .service-hero .hero-badge {
            display: inline-block;
            background: var(--brand-red);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .service-hero h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
            line-height: 1.25;
        }

        .service-hero .hero-subtitle {
            font-size: 1.1rem;
            color: #C8CDD4;
            line-height: 1.7;
            max-width: 620px;
        }

        .service-hero .hero-stats-row {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .service-hero .hero-stat-item {
            text-align: center;
            min-width: 90px;
        }

        .service-hero .hero-stat-item .stat-number {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--brand-orange);
            line-height: 1.1;
        }

        .service-hero .hero-stat-item .stat-label {
            font-size: 0.85rem;
            color: #9BA3AF;
            margin-top: 4px;
        }

        /* ===== 服务主体布局 ===== */
        .service-body-section {
            padding: 60px 0;
            background: #fff;
        }

        .service-body-section.bg-light {
            background: var(--bg-light);
        }

        .service-body-section.bg-section {
            background: var(--bg-section);
        }

        .service-layout {
            display: flex;
            gap: 40px;
            align-items: flex-start;
        }

        /* 左侧服务子导航 */
        .service-subnav {
            width: 260px;
            min-width: 260px;
            position: sticky;
            top: 30px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            padding: 20px 0;
            flex-shrink: 0;
        }

        .service-subnav .subnav-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            padding: 0 20px 14px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 8px;
        }

        .service-subnav .subnav-item {
            display: flex;
            align-items: center;
            padding: 12px 20px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition);
            cursor: pointer;
            border-left: 3px solid transparent;
            gap: 10px;
        }

        .service-subnav .subnav-item:hover {
            background: #FEF2F2;
            color: var(--brand-red);
        }

        .service-subnav .subnav-item.active {
            background: #FEF2F2;
            color: var(--brand-red);
            border-left-color: var(--brand-red);
            font-weight: 600;
        }

        .service-subnav .subnav-icon {
            width: 28px;
            height: 28px;
            border-radius: var(--radius-sm);
            background: #F8F9FA;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .service-subnav .subnav-item.active .subnav-icon {
            background: var(--brand-red);
            color: #fff;
        }

        /* 右侧服务详情 */
        .service-detail-content {
            flex: 1;
            min-width: 0;
        }

        .service-detail-content .detail-block {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px;
            margin-bottom: 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .service-detail-content .detail-block h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .service-detail-content .detail-block h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .service-detail-content .detail-block p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .service-detail-content .detail-block p:last-child {
            margin-bottom: 0;
        }

        .service-detail-content .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 16px;
        }

        .service-detail-content .feature-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 16px;
            background: #FDFDFD;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }

        .service-detail-content .feature-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: #D0D5DA;
        }

        .service-detail-content .feature-item .feature-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-red);
            flex-shrink: 0;
            margin-top: 6px;
        }

        .service-detail-content .feature-item .feature-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .service-detail-content .feature-item .feature-text strong {
            color: var(--text-primary);
            display: block;
            margin-bottom: 2px;
            font-size: 0.95rem;
        }

        /* ===== 白皮书下载区 ===== */
        .whitepaper-section {
            padding: 60px 0;
            background: var(--bg-deep);
            color: #fff;
        }

        .whitepaper-card {
            display: flex;
            gap: 40px;
            align-items: center;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            padding: 40px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .whitepaper-card .wp-cover {
            width: 240px;
            min-width: 240px;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            flex-shrink: 0;
        }

        .whitepaper-card .wp-cover img {
            width: 100%;
            aspect-ratio: 3/4;
            object-fit: cover;
        }

        .whitepaper-card .wp-info h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .whitepaper-card .wp-info .wp-meta {
            font-size: 0.9rem;
            color: #B0B8C1;
            margin-bottom: 16px;
        }

        .whitepaper-card .wp-toc {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .whitepaper-card .wp-toc li {
            padding: 6px 0;
            color: #C8CDD4;
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .whitepaper-card .wp-toc li::before {
            content: '▸';
            color: var(--brand-orange);
            font-size: 0.75rem;
            flex-shrink: 0;
        }

        .whitepaper-card .wp-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .whitepaper-card .wp-form input {
            flex: 1;
            min-width: 180px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 0.95rem;
            transition: all var(--transition);
        }

        .whitepaper-card .wp-form input::placeholder {
            color: #8A9099;
        }

        .whitepaper-card .wp-form input:focus {
            border-color: var(--brand-orange);
            box-shadow: 0 0 0 3px rgba(232, 89, 12, 0.2);
        }

        .wp-download-btn {
            padding: 12px 28px;
            background: var(--brand-orange);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .wp-download-btn:hover {
            background: #D04E0A;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 数据指标区 ===== */
        .metrics-section {
            padding: 60px 0;
            background: #fff;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            text-align: center;
            padding: 28px 20px;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .metric-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: #D0D5DA;
        }

        .metric-card .metric-icon {
            font-size: 2rem;
            margin-bottom: 12px;
        }

        .metric-card .metric-number {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 800;
            color: var(--brand-red);
            line-height: 1.1;
        }

        .metric-card .metric-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ===== 流程区 ===== */
        .process-section {
            padding: 60px 0;
            background: var(--bg-section);
        }

        .process-steps {
            display: flex;
            gap: 0;
            align-items: flex-start;
            position: relative;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 36px;
            right: 36px;
            height: 2px;
            background: var(--border-color);
            z-index: 0;
        }

        .process-step {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 16px;
        }

        .process-step .step-circle {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid var(--brand-red);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--brand-red);
            margin: 0 auto 16px;
            transition: all var(--transition);
            position: relative;
            z-index: 1;
        }

        .process-step:hover .step-circle {
            background: var(--brand-red);
            color: #fff;
            transform: scale(1.08);
            box-shadow: var(--shadow-md);
        }

        .process-step .step-title {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .process-step .step-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ===== 案例卡片区 ===== */
        .cases-section {
            padding: 60px 0;
            background: #fff;
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .case-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }

        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: #D0D5DA;
        }

        .case-card .case-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            background: #F0F1F3;
        }

        .case-card .case-body {
            padding: 20px;
        }

        .case-card .case-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--brand-red);
            background: #FEF2F2;
            padding: 4px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
        }

        .case-card .case-title {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .case-card .case-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 对比区 ===== */
        .compare-section {
            padding: 60px 0;
            background: var(--bg-light);
        }

        .compare-table {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .compare-row {
            display: flex;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-row:last-child {
            border-bottom: none;
        }

        .compare-row.header-row {
            background: var(--bg-deep);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
        }

        .compare-row .compare-cell {
            flex: 1;
            padding: 16px 20px;
            font-size: 0.92rem;
            line-height: 1.5;
            display: flex;
            align-items: center;
        }

        .compare-row .compare-cell:first-child {
            flex: 0.8;
            font-weight: 600;
            color: var(--text-primary);
            background: #FDFDFD;
        }

        .compare-row.header-row .compare-cell:first-child {
            background: transparent;
            color: #fff;
        }

        .compare-row .compare-cell.highlight {
            color: var(--brand-red);
            font-weight: 600;
        }

        .compare-row .compare-cell .check-icon {
            color: #2E8B57;
            font-weight: 700;
            margin-right: 6px;
        }

        .compare-row .compare-cell .cross-icon {
            color: #C92A2A;
            font-weight: 700;
            margin-right: 6px;
        }

        /* ===== FAQ区 ===== */
        .faq-section {
            padding: 60px 0;
            background: #fff;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item .faq-question {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition);
            gap: 12px;
        }

        .faq-item .faq-question:hover {
            background: #FDFDFD;
        }

        .faq-item .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #F5F5F5;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-muted);
            transition: all 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--brand-red);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease, padding 0.5s ease;
            padding: 0 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* ===== CTA区 ===== */
        .cta-section {
            padding: 60px 0;
            background: var(--brand-red);
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .cta-form {
            display: flex;
            gap: 12px;
            max-width: 560px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-section .cta-form input {
            flex: 1;
            min-width: 160px;
            padding: 13px 16px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 0.95rem;
            transition: all var(--transition);
        }

        .cta-section .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .cta-section .cta-form input:focus {
            border-color: #fff;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.18);
        }

        .btn-cta-submit {
            padding: 13px 32px;
            background: #fff;
            color: var(--brand-red);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .btn-cta-submit:hover {
            background: #F5F5F5;
            transform: scale(1.04);
            box-shadow: var(--shadow-lg);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            color: #B0B8C1;
            padding: 48px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.6;
            color: #8A9099;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: #8A9099;
            padding: 5px 0;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: var(--brand-orange);
        }

        .footer-col span {
            display: block;
            font-size: 0.85rem;
            color: #8A9099;
            padding: 5px 0;
        }

        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.82rem;
            color: #6C757D;
            line-height: 2;
        }

        .footer-bottom a {
            color: #8A9099;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--brand-orange);
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: #495057;
        }

        /* ===== Section标题 ===== */
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        .section-header.left-align {
            text-align: left;
        }

        /* ===== 按钮通用 ===== */
        .btn-outline {
            display: inline-block;
            padding: 10px 22px;
            border: 2px solid var(--brand-red);
            color: var(--brand-red);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            background: transparent;
            letter-spacing: 0.02em;
        }

        .btn-outline:hover {
            background: rgba(201, 42, 42, 0.08);
            transform: scale(1.03);
        }

        .btn-primary {
            display: inline-block;
            padding: 12px 28px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .service-layout {
                flex-direction: column;
            }
            .service-subnav {
                width: 100%;
                min-width: auto;
                position: static;
                display: flex;
                flex-wrap: wrap;
                gap: 6px;
                padding: 12px;
                flex-direction: row;
                overflow-x: auto;
                border-radius: var(--radius);
            }
            .service-subnav .subnav-title {
                display: none;
            }
            .service-subnav .subnav-item {
                white-space: nowrap;
                border-left: none;
                border-radius: 20px;
                padding: 8px 14px;
                font-size: 0.85rem;
                border: 1px solid var(--border-color);
            }
            .service-subnav .subnav-item.active {
                border-left: 1px solid var(--brand-red);
                border-color: var(--brand-red);
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .whitepaper-card {
                flex-direction: column;
                text-align: center;
            }
            .whitepaper-card .wp-cover {
                width: 180px;
                min-width: 180px;
                margin: 0 auto;
            }
            .whitepaper-card .wp-form {
                justify-content: center;
            }
            .process-steps {
                flex-wrap: wrap;
                gap: 20px;
            }
            .process-steps::before {
                display: none;
            }
            .process-step {
                flex: 0 0 calc(50% - 20px);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-detail-content .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .side-nav {
                transform: translateX(-100%);
            }
            .side-nav.open {
                transform: translateX(0);
            }
            .main-area {
                margin-left: 0;
                width: 100%;
            }
            .hamburger-btn {
                display: flex;
            }
            .nav-overlay.show {
                display: block;
            }
            .service-hero {
                padding: 40px 20px 36px;
                min-height: auto;
            }
            .service-hero h1 {
                font-size: 1.6rem;
            }
            .service-hero .hero-stats-row {
                gap: 16px;
            }
            .service-body-section {
                padding: 36px 0;
            }
            .service-detail-content .detail-block {
                padding: 20px;
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .compare-row {
                flex-wrap: wrap;
            }
            .compare-row .compare-cell {
                flex: 1 1 50%;
                min-width: 120px;
                font-size: 0.82rem;
                padding: 10px 12px;
            }
            .compare-row .compare-cell:first-child {
                flex: 1 1 100%;
                font-weight: 700;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .whitepaper-card {
                padding: 24px;
            }
            .whitepaper-card .wp-form {
                flex-direction: column;
            }
            .whitepaper-card .wp-form input {
                min-width: auto;
            }
            .process-step {
                flex: 0 0 100%;
            }
            .cta-section .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-section .cta-form input {
                width: 100%;
                max-width: 360px;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
        }

        @media (max-width: 520px) {
            .service-hero .hero-stats-row {
                flex-direction: column;
                gap: 10px;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .compare-row .compare-cell {
                flex: 1 1 100%;
                font-size: 0.8rem;
            }
            .service-subnav {
                gap: 4px;
                padding: 8px;
            }
            .service-subnav .subnav-item {
                padding: 6px 10px;
                font-size: 0.78rem;
            }
            .container {
                padding: 0 14px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #1A1D23;
            --bg-card: #FFFFFF;
            --bg-light: #FAFAFA;
            --bg-section: #F5F5F5;
            --brand-red: #C92A2A;
            --brand-orange: #E8590C;
            --text-primary: #1A1D23;
            --text-secondary: #495057;
            --text-muted: #6C757D;
            --text-light: #ADB5BD;
            --border-color: #E9ECEF;
            --border-input: #DEE2E6;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --transition: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --nav-width: 280px;
            --container-max: 1280px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--text-primary);
            background: #fff;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 左侧导航 ===== */
        .side-nav {
            width: var(--nav-width);
            min-width: var(--nav-width);
            background: var(--bg-deep);
            color: #fff;
            display: flex;
            flex-direction: column;
            padding: 28px 24px 24px;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            overflow-y: auto;
            transition: transform 0.35s ease;
        }

        .side-nav .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 36px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .side-nav .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--brand-red);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .side-nav .nav-links {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav .nav-links a {
            display: flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: #B0B8C1;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.01em;
        }

        .side-nav .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .side-nav .nav-links a.active {
            color: #fff;
            background: rgba(201, 42, 42, 0.25);
        }

        .side-nav .nav-links a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--brand-red);
            border-radius: 0 3px 3px 0;
        }

        .side-nav .nav-cta {
            margin-top: auto;
            padding-top: 20px;
        }

        .side-nav .nav-cta .btn-nav-cta {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px 20px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .side-nav .nav-cta .btn-nav-cta:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 右侧主区域 ===== */
        .main-area {
            flex: 1;
            margin-left: var(--nav-width);
            width: calc(100% - var(--nav-width));
            min-height: 100vh;
        }

        /* ===== 汉堡按钮 ===== */
        .hamburger-btn {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            width: 40px;
            height: 40px;
            background: var(--bg-deep);
            border-radius: var(--radius-sm);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border: none;
            box-shadow: var(--shadow-md);
        }

        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            transition: opacity 0.3s ease;
        }

        .nav-overlay.show {
            display: block;
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 64px 0;
        }

        .section-block-dark {
            padding: 64px 0;
            background: var(--bg-deep);
            color: #fff;
        }

        .section-block-light {
            padding: 64px 0;
            background: var(--bg-light);
        }

        .section-block-gray {
            padding: 64px 0;
            background: var(--bg-section);
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 680px;
        }

        .section-block-dark .section-title {
            color: #fff;
        }

        .section-block-dark .section-subtitle {
            color: #ADB5BD;
        }

        /* ===== 按钮 ===== */
        .btn-brand {
            display: inline-block;
            padding: 12px 28px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            border: 2px solid var(--brand-red);
        }

        .btn-brand:hover {
            background: #B02525;
            border-color: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

        .btn-outline-brand {
            display: inline-block;
            padding: 12px 28px;
            background: transparent;
            color: var(--brand-red);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            border: 2px solid var(--brand-red);
        }

        .btn-outline-brand:hover {
            background: rgba(201, 42, 42, 0.08);
            color: var(--brand-red);
            transform: scale(1.03);
        }

        .btn-white {
            display: inline-block;
            padding: 12px 28px;
            background: #fff;
            color: var(--brand-red);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            border: 2px solid #fff;
        }

        .btn-white:hover {
            background: #f0f0f0;
            border-color: #f0f0f0;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
            color: #B02525;
        }

        /* ===== Hero数据概览区 ===== */
        .hero-data-section {
            position: relative;
            background: var(--bg-deep);
            color: #fff;
            padding: 80px 0 72px;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-data-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .hero-data-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 29, 35, 0.75) 0%, rgba(26, 29, 35, 0.92) 100%);
            z-index: 1;
        }

        .hero-data-content {
            position: relative;
            z-index: 2;
        }

        .hero-data-title {
            font-size: clamp(2.2rem, 4vw, 3.5rem);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.015em;
        }

        .hero-data-subtitle {
            font-size: 1.15rem;
            color: #CBD5E1;
            max-width: 620px;
            margin-bottom: 36px;
            line-height: 1.7;
        }

        .hero-data-metrics {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .hero-metric-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            min-width: 150px;
            text-align: center;
            backdrop-filter: blur(4px);
            transition: all var(--transition);
        }

        .hero-metric-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .hero-metric-number {
            font-size: clamp(2rem, 3.5vw, 3.2rem);
            font-weight: 800;
            color: #fff;
            line-height: 1;
            margin-bottom: 6px;
        }

        .hero-metric-label {
            font-size: 0.9rem;
            color: #ADB5BD;
            letter-spacing: 0.04em;
        }

        .hero-metric-unit {
            color: var(--brand-orange);
            font-weight: 600;
        }

        /* ===== 筛选栏 ===== */
        .filter-bar {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }

        .filter-bar-inner {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .filter-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .filter-select {
            padding: 8px 32px 8px 14px;
            border: 1px solid var(--border-input);
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            color: var(--text-primary);
            background: #fff;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236C757D' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'%3E%3C/path%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 10px center;
            cursor: pointer;
            transition: all var(--transition);
            min-width: 140px;
        }

        .filter-select:focus {
            border-color: var(--brand-red);
            box-shadow: 0 0 0 3px rgba(201, 42, 42, 0.1);
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            border: 1px solid var(--border-color);
            background: #fff;
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--brand-red);
            color: var(--brand-red);
        }

        .filter-tag.active {
            background: var(--brand-red);
            color: #fff;
            border-color: var(--brand-red);
        }

        .filter-tag .tag-count {
            font-size: 0.75rem;
            opacity: 0.8;
        }

        /* ===== 数据卡片Grid ===== */
        .data-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 20px;
        }

        .data-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 24px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .data-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateY(-3px);
        }

        .data-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .data-card-league {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--brand-red);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            background: rgba(201, 42, 42, 0.06);
            padding: 4px 10px;
            border-radius: 4px;
        }

        .data-card-status {
            font-size: 0.78rem;
            color: #22C55E;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .data-card-status .live-dot {
            width: 8px;
            height: 8px;
            background: #22C55E;
            border-radius: 50%;
            animation: pulse-dot 1.5s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        .data-card-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .data-card-team {
            font-weight: 600;
            font-size: 1.05rem;
            text-align: center;
            flex: 1;
        }

        .data-card-score {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            text-align: center;
            min-width: 70px;
            letter-spacing: 0.04em;
        }

        .data-card-divider {
            color: var(--text-muted);
            font-weight: 400;
        }

        .data-card-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
        }

        .data-stat-item {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .data-stat-value {
            font-weight: 600;
            color: var(--text-primary);
        }

        .data-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .data-card-link {
            color: var(--brand-red);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition);
        }

        .data-card-link:hover {
            color: #B02525;
            text-decoration: underline;
        }

        .data-card-link i {
            font-size: 0.7rem;
            margin-left: 4px;
            transition: transform var(--transition);
        }

        .data-card:hover .data-card-link i {
            transform: translateX(4px);
        }

        /* ===== 排行榜区 ===== */
        .ranking-table-wrap {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .ranking-row {
            display: flex;
            align-items: center;
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-color);
            transition: all var(--transition);
            gap: 16px;
        }

        .ranking-row:last-child {
            border-bottom: none;
        }

        .ranking-row:hover {
            background: #FFF5F5;
        }

        .ranking-row.header-row {
            background: var(--bg-deep);
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
        }

        .ranking-pos {
            font-weight: 700;
            font-size: 1.1rem;
            min-width: 36px;
            text-align: center;
        }

        .ranking-pos.top {
            color: var(--brand-red);
        }

        .ranking-team-name {
            flex: 1;
            font-weight: 600;
            font-size: 0.95rem;
        }

        .ranking-stat {
            min-width: 50px;
            text-align: center;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .ranking-change {
            font-size: 0.8rem;
            min-width: 40px;
            text-align: center;
        }

        .ranking-change.up {
            color: #22C55E;
        }

        .ranking-change.down {
            color: #EF4444;
        }

        /* ===== 深度分析文章区 ===== */
        .analysis-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            display: flex;
            gap: 0;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }

        .analysis-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .analysis-card-img {
            width: 40%;
            min-width: 280px;
            flex-shrink: 0;
            overflow: hidden;
            position: relative;
        }

        .analysis-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .analysis-card:hover .analysis-card-img img {
            transform: scale(1.04);
        }

        .analysis-card-body {
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
        }

        .analysis-card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--brand-red);
            background: rgba(201, 42, 42, 0.06);
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
            width: fit-content;
        }

        .analysis-card-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
            color: var(--text-primary);
        }

        .analysis-card-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        .analysis-card-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            gap: 16px;
            align-items: center;
        }

        /* ===== 球员数据追踪 ===== */
        .player-track-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 20px 24px;
            text-align: center;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .player-track-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--brand-orange);
        }

        .player-avatar-placeholder {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: linear-gradient(135deg, #E8590C 0%, #C92A2A 100%);
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
        }

        .player-name {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 4px;
        }

        .player-team {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .player-stats-row {
            display: flex;
            justify-content: center;
            gap: 20px;
            font-size: 0.82rem;
            color: var(--text-secondary);
        }

        .player-stats-row span {
            font-weight: 600;
            color: var(--text-primary);
        }

        /* ===== FAQ ===== */
        .faq-accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            margin-bottom: 12px;
            background: #fff;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-accordion-item:hover {
            border-color: #D0D5DD;
        }

        .faq-accordion-btn {
            width: 100%;
            background: none;
            padding: 18px 24px;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
        }

        .faq-accordion-btn .faq-num {
            color: var(--brand-red);
            font-weight: 700;
            font-size: 0.9rem;
            min-width: 28px;
        }

        .faq-accordion-btn .faq-icon {
            font-size: 1.2rem;
            color: var(--text-muted);
            transition: transform 0.35s ease;
            flex-shrink: 0;
        }

        .faq-accordion-item.open .faq-accordion-btn .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-red);
        }

        .faq-accordion-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease;
        }

        .faq-accordion-item.open .faq-accordion-body {
            max-height: 300px;
        }

        .faq-accordion-body-inner {
            padding: 0 24px 20px 56px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--brand-red);
            color: #fff;
            padding: 64px 0;
            text-align: center;
        }

        .cta-title {
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            color: #B0B8C1;
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.6;
            color: #8A9099;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #8A9099;
            margin-bottom: 8px;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: var(--brand-red);
        }

        .footer-bottom {
            text-align: center;
            padding: 24px 0;
            font-size: 0.8rem;
            color: #6C757D;
        }

        .footer-bottom a {
            color: #8A9099;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--brand-red);
        }

        .footer-bottom .sep {
            margin: 0 10px;
            color: #495057;
        }

        .footer-bottom p {
            margin: 4px 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .side-nav {
                transform: translateX(-100%);
            }
            .side-nav.open {
                transform: translateX(0);
            }
            .main-area {
                margin-left: 0;
                width: 100%;
            }
            .hamburger-btn {
                display: flex;
            }
            .hero-data-metrics {
                gap: 16px;
            }
            .hero-metric-card {
                padding: 18px 20px;
                min-width: 120px;
            }
            .data-card-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
            .analysis-card {
                flex-direction: column;
            }
            .analysis-card-img {
                width: 100%;
                min-width: auto;
                height: 220px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section-block,
            .section-block-dark,
            .section-block-light,
            .section-block-gray {
                padding: 44px 0;
            }
            .filter-bar-inner {
                gap: 10px;
            }
            .filter-select {
                min-width: 110px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            .hero-data-section {
                padding: 56px 0 44px;
                min-height: auto;
            }
            .hero-data-title {
                font-size: 1.6rem;
            }
            .hero-data-metrics {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 10px;
            }
            .hero-metric-card {
                flex: 1 1 45%;
                min-width: auto;
                padding: 14px 12px;
            }
            .hero-metric-number {
                font-size: 1.5rem;
            }
            .data-card-grid {
                grid-template-columns: 1fr;
            }
            .data-card {
                padding: 18px;
            }
            .data-card-score {
                font-size: 1.5rem;
                min-width: 50px;
            }
            .ranking-row {
                padding: 10px 12px;
                gap: 8px;
                font-size: 0.82rem;
            }
            .ranking-stat {
                min-width: 36px;
                font-size: 0.78rem;
            }
            .analysis-card-body {
                padding: 18px;
            }
            .analysis-card-title {
                font-size: 1.05rem;
            }
            .filter-bar-inner {
                flex-wrap: wrap;
                gap: 8px;
            }
            .filter-tag {
                font-size: 0.75rem;
                padding: 5px 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
            .footer-col a {
                text-align: center;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .player-track-card {
                padding: 16px;
            }
            .faq-accordion-btn {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-accordion-body-inner {
                padding: 0 16px 16px 40px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 520px) {
            .hero-data-metrics {
                flex-direction: column;
                gap: 8px;
            }
            .hero-metric-card {
                flex: 1 1 auto;
            }
            .data-card-teams {
                flex-direction: column;
                gap: 6px;
            }
            .data-card-score {
                font-size: 1.3rem;
            }
            .filter-bar-inner {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-select {
                width: 100%;
                min-width: auto;
            }
            .filter-group {
                flex-wrap: wrap;
            }
            .section-block,
            .section-block-dark,
            .section-block-light,
            .section-block-gray {
                padding: 32px 0;
            }
            .container {
                padding: 0 14px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-deep: #1A1D23;
            --bg-card: #FFFFFF;
            --bg-light: #FAFAFA;
            --bg-section: #F5F5F5;
            --brand-red: #C92A2A;
            --brand-orange: #E8590C;
            --text-primary: #1A1D23;
            --text-secondary: #495057;
            --text-muted: #6C757D;
            --text-light: #ADB5BD;
            --border-color: #E9ECEF;
            --border-input: #DEE2E6;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --transition: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --nav-width: 280px;
            --container-max: 1280px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            box-sizing: border-box;
        }
        *,
        *::before,
        *::after {
            box-sizing: inherit;
        }

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--text-primary);
            background: #fff;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
            background: none;
        }

        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
        }
        p {
            margin: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 左侧导航 ===== */
        .side-nav {
            width: var(--nav-width);
            min-width: var(--nav-width);
            background: var(--bg-deep);
            color: #fff;
            display: flex;
            flex-direction: column;
            padding: 28px 24px 24px;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            overflow-y: auto;
            transition: transform 0.35s ease;
        }
        .side-nav .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 36px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .side-nav .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--brand-red);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .side-nav .nav-links {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .side-nav .nav-links a {
            display: flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: #B0B8C1;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.01em;
        }
        .side-nav .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .side-nav .nav-links a.active {
            color: #fff;
            background: rgba(201, 42, 42, 0.25);
        }
        .side-nav .nav-links a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--brand-red);
            border-radius: 0 3px 3px 0;
        }
        .side-nav .nav-cta {
            margin-top: auto;
            padding-top: 20px;
        }
        .side-nav .nav-cta .btn-nav-cta {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px 20px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }
        .side-nav .nav-cta .btn-nav-cta:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 右侧主区域 ===== */
        .main-area {
            flex: 1;
            margin-left: var(--nav-width);
            width: calc(100% - var(--nav-width));
            min-height: 100vh;
        }

        /* ===== 汉堡按钮 ===== */
        .hamburger-btn {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            width: 40px;
            height: 40px;
            background: var(--bg-deep);
            border-radius: var(--radius-sm);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border: none;
            box-shadow: var(--shadow-md);
        }
        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== 通用按钮 ===== */
        .btn-primary {
            display: inline-block;
            padding: 12px 28px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            text-align: center;
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            display: inline-block;
            padding: 11px 27px;
            background: transparent;
            color: var(--brand-red);
            border: 2px solid var(--brand-red);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            text-align: center;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(201, 42, 42, 0.08);
            transform: scale(1.03);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: all var(--transition);
            cursor: pointer;
            display: inline-block;
            text-align: center;
        }
        .btn-sm-primary {
            background: var(--brand-red);
            color: #fff;
            border: none;
        }
        .btn-sm-primary:hover {
            background: #B02525;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .btn-sm-outline {
            background: transparent;
            color: var(--brand-red);
            border: 1.5px solid var(--brand-red);
        }
        .btn-sm-outline:hover {
            background: rgba(201, 42, 42, 0.06);
            transform: translateY(-2px);
        }

        /* ===== 标签 ===== */
        .tag {
            display: inline-block;
            padding: 5px 12px;
            font-size: 0.78rem;
            font-weight: 500;
            border-radius: 20px;
            letter-spacing: 0.02em;
            transition: all var(--transition);
        }
        .tag-default {
            background: #F0F1F3;
            color: var(--text-secondary);
        }
        .tag-active {
            background: var(--brand-red);
            color: #fff;
        }
        .tag-outline {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
        }
        .tag-outline:hover {
            border-color: var(--brand-red);
            color: var(--brand-red);
        }
        .tag-sm {
            padding: 3px 10px;
            font-size: 0.72rem;
            border-radius: 16px;
            background: #FFF0EC;
            color: var(--brand-orange);
            font-weight: 500;
            letter-spacing: 0.01em;
        }

        /* ===== Hero 区域 ===== */
        .hero-section {
            background: var(--bg-light);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border-color);
        }
        .hero-inner {
            display: flex;
            align-items: flex-start;
            gap: 36px;
            flex-wrap: wrap;
        }
        .hero-icon-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            flex-shrink: 0;
        }
        .hero-icon-box {
            width: 52px;
            height: 52px;
            background: #fff;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .hero-icon-box:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
        }
        .hero-text-area {
            flex: 1;
            min-width: 260px;
        }
        .hero-text-area h1 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }
        .hero-text-area .hero-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .hero-status-bar {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            align-items: center;
        }
        .hero-status-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .hero-status-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #27AE60;
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(39, 174, 96, 0.4);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(39, 174, 96, 0);
            }
        }
        .hero-status-count {
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--brand-red);
        }

        /* ===== 筛选标签栏 ===== */
        .filter-section {
            padding: 28px 0 12px;
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 50;
        }
        .filter-inner {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }
        .filter-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-right: 6px;
            white-space: nowrap;
        }
        .filter-tag {
            display: inline-block;
            padding: 7px 16px;
            font-size: 0.85rem;
            font-weight: 500;
            border-radius: 20px;
            cursor: pointer;
            transition: all var(--transition);
            background: #F0F1F3;
            color: var(--text-secondary);
            border: 1.5px solid transparent;
            user-select: none;
            white-space: nowrap;
        }
        .filter-tag:hover {
            background: #E8E9EB;
            color: var(--text-primary);
        }
        .filter-tag.active {
            background: var(--brand-red);
            color: #fff;
            border-color: var(--brand-red);
            font-weight: 600;
        }

        /* ===== 案例卡片瀑布流 ===== */
        .cases-section {
            padding: 40px 0 60px;
            background: #fff;
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            cursor: pointer;
            position: relative;
        }
        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
        }
        .case-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.4s ease;
            background: #E9ECEF;
        }
        .case-card:hover .case-card-img {
            transform: scale(1.04);
        }
        .case-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .case-card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .case-card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            letter-spacing: 0.01em;
        }
        .case-card-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .case-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-light);
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .case-card-meta .case-date {
            font-weight: 500;
        }
        .case-card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--brand-red);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition);
        }
        .case-card:hover .case-card-arrow {
            gap: 8px;
        }
        .case-card-arrow svg {
            width: 14px;
            height: 14px;
            transition: transform var(--transition);
        }
        .case-card:hover .case-card-arrow svg {
            transform: translateX(3px);
        }

        /* 精选案例大图 */
        .featured-case {
            padding: 0 0 56px;
            background: #fff;
        }
        .featured-case-inner {
            display: flex;
            gap: 40px;
            align-items: center;
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .featured-case-img {
            width: 48%;
            min-height: 360px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .featured-case-content {
            padding: 36px 40px 36px 0;
            flex: 1;
        }
        .featured-case-label {
            display: inline-block;
            padding: 4px 12px;
            background: var(--brand-red);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 4px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .featured-case-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .featured-case-content p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .featured-case-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .featured-stat {
            text-align: center;
        }
        .featured-stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--brand-red);
            display: block;
        }
        .featured-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== 客户评价区 ===== */
        .testimonials-section {
            padding: 56px 0;
            background: var(--bg-section);
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 1.9rem);
            font-weight: 700;
            text-align: center;
            margin-bottom: 8px;
            color: var(--text-primary);
            letter-spacing: 0.01em;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 36px;
        }
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
        }
        .testimonial-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 16px;
            left: 20px;
            font-size: 4rem;
            color: rgba(201, 42, 42, 0.1);
            font-weight: 800;
            line-height: 1;
            pointer-events: none;
        }
        .testimonial-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-deep);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .testimonial-info .t-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
        }
        .testimonial-info .t-role {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ===== 数据统计看板 ===== */
        .stats-board {
            padding: 56px 0;
            background: var(--bg-deep);
            color: #fff;
        }
        .stats-board .section-title {
            color: #fff;
        }
        .stats-board .section-subtitle {
            color: #B0B8C1;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            overflow: hidden;
        }
        .stat-card {
            padding: 32px 24px;
            text-align: center;
            background: rgba(255, 255, 255, 0.03);
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
            cursor: default;
        }
        .stat-card:last-child {
            border-right: none;
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.07);
        }
        .stat-card .stat-num {
            font-size: clamp(1.8rem, 3vw, 2.8rem);
            font-weight: 800;
            color: var(--brand-red);
            display: block;
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: #B0B8C1;
            font-weight: 500;
        }

        /* ===== CTA 区域 ===== */
        .cta-section {
            padding: 60px 0;
            background: var(--brand-red);
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 2.5vw, 2rem);
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-white {
            display: inline-block;
            padding: 13px 32px;
            background: #fff;
            color: var(--brand-red);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            cursor: pointer;
            border: none;
        }
        .cta-section .btn-white:hover {
            background: #F0F0F0;
            transform: scale(1.04);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 56px 0;
            background: #fff;
        }
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            max-width: 900px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            background: #fff;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: #D0D4D9;
        }
        .faq-question {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            transition: all var(--transition);
            user-select: none;
            gap: 12px;
        }
        .faq-question .faq-num {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--bg-section);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--text-muted);
            flex-shrink: 0;
            transition: all var(--transition);
        }
        .faq-item.open .faq-num {
            background: var(--brand-red);
            color: #fff;
        }
        .faq-question .faq-icon {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-red);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease, padding 0.4s ease;
            padding: 0 20px;
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 20px 16px;
        }

        /* ===== 弹窗占位 ===== */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.65);
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        .modal-dialog {
            background: #fff;
            border-radius: var(--radius-lg);
            max-width: 720px;
            width: 92%;
            max-height: 85vh;
            overflow-y: auto;
            box-shadow: var(--shadow-lg);
            transform: translateY(20px);
            transition: transform 0.35s ease;
            position: relative;
        }
        .modal-overlay.active .modal-dialog {
            transform: translateY(0);
        }
        .modal-close {
            position: absolute;
            top: 16px;
            right: 20px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #F0F1F3;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            cursor: pointer;
            z-index: 10;
            transition: all var(--transition);
            color: var(--text-secondary);
            border: none;
        }
        .modal-close:hover {
            background: #E0E2E5;
            color: var(--text-primary);
        }
        .modal-img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .modal-body {
            padding: 28px 32px 32px;
        }
        .modal-body h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .modal-body .modal-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .modal-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .modal-stats-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            padding: 16px 0;
            border-top: 1px solid var(--border-color);
            margin-top: 12px;
        }
        .modal-stat-item {
            text-align: center;
            flex: 1;
            min-width: 80px;
        }
        .modal-stat-item .ms-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--brand-red);
            display: block;
        }
        .modal-stat-item .ms-label {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            color: #B0B8C1;
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: #8A9099;
            line-height: 1.6;
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            color: #8A9099;
            font-size: 0.85rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--brand-red);
        }
        .footer-col span {
            display: block;
            font-size: 0.85rem;
            color: #8A9099;
            padding: 4px 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: #6C757D;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 6px;
            align-items: center;
        }
        .footer-bottom a {
            color: #8A9099;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--brand-red);
        }
        .footer-bottom .sep {
            color: #4A5058;
            margin: 0 6px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-card {
                border-right: 1px solid rgba(255, 255, 255, 0.08);
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            }
            .stat-card:nth-child(2) {
                border-right: none;
            }
            .stat-card:nth-child(3) {
                border-bottom: none;
            }
            .stat-card:nth-child(4) {
                border-bottom: none;
            }
            .featured-case-inner {
                flex-direction: column;
            }
            .featured-case-img {
                width: 100%;
                min-height: 260px;
            }
            .featured-case-content {
                padding: 28px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-grid {
                grid-template-columns: 1fr;
                max-width: 100%;
            }
        }
        @media (max-width: 768px) {
            .side-nav {
                transform: translateX(-100%);
            }
            .side-nav.open {
                transform: translateX(0);
            }
            .hamburger-btn {
                display: flex;
            }
            .main-area {
                margin-left: 0;
                width: 100%;
            }
            .hero-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .hero-icon-matrix {
                grid-template-columns: repeat(4, 1fr);
            }
            .cases-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .case-card-img {
                height: 160px;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .featured-case-inner {
                flex-direction: column;
            }
            .featured-case-img {
                width: 100%;
                min-height: 200px;
            }
            .featured-case-content {
                padding: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .filter-inner {
                gap: 6px;
            }
            .filter-tag {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .modal-dialog {
                max-width: 95%;
                max-height: 90vh;
            }
            .modal-img {
                height: 180px;
            }
            .modal-body {
                padding: 20px;
            }
        }
        @media (max-width: 520px) {
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .case-card-img {
                height: 180px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .hero-icon-matrix {
                grid-template-columns: repeat(3, 1fr);
                gap: 8px;
            }
            .hero-icon-box {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
            .filter-tag {
                padding: 5px 10px;
                font-size: 0.75rem;
            }
            .hero-status-bar {
                gap: 12px;
                flex-direction: column;
                align-items: flex-start;
            }
            .featured-case-stats {
                flex-direction: column;
                gap: 14px;
            }
            .modal-stats-row {
                flex-direction: column;
                gap: 12px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-deep: #1A1D23;
            --bg-card: #FFFFFF;
            --bg-light: #FAFAFA;
            --bg-section: #F5F5F5;
            --brand-red: #C92A2A;
            --brand-orange: #E8590C;
            --text-primary: #1A1D23;
            --text-secondary: #495057;
            --text-muted: #6C757D;
            --text-light: #ADB5BD;
            --border-color: #E9ECEF;
            --border-input: #DEE2E6;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --transition: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --nav-width: 280px;
            --container-max: 1280px;
            --gold: #D4A843;
            --timeline-line: #DEE2E6;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--text-primary);
            background: #fff;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 左侧导航 ===== */
        .side-nav {
            width: var(--nav-width);
            min-width: var(--nav-width);
            background: var(--bg-deep);
            color: #fff;
            display: flex;
            flex-direction: column;
            padding: 28px 24px 24px;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            overflow-y: auto;
            transition: transform 0.35s ease;
        }

        .side-nav .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 36px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .side-nav .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--brand-red);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .side-nav .nav-links {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav .nav-links a {
            display: flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: #B0B8C1;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.01em;
        }

        .side-nav .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .side-nav .nav-links a.active {
            color: #fff;
            background: rgba(201, 42, 42, 0.25);
        }

        .side-nav .nav-links a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--brand-red);
            border-radius: 0 3px 3px 0;
        }

        .side-nav .nav-cta {
            margin-top: auto;
            padding-top: 20px;
        }

        .side-nav .nav-cta .btn-nav-cta {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px 20px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .side-nav .nav-cta .btn-nav-cta:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 右侧主区域 ===== */
        .main-area {
            flex: 1;
            margin-left: var(--nav-width);
            width: calc(100% - var(--nav-width));
            min-height: 100vh;
        }

        /* ===== 汉堡按钮 ===== */
        .hamburger-btn {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            width: 40px;
            height: 40px;
            background: var(--bg-deep);
            border-radius: var(--radius-sm);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border: none;
            box-shadow: var(--shadow-md);
        }

        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 999;
            transition: opacity 0.35s ease;
        }

        .nav-overlay.show {
            display: block;
        }

        /* ===== Section 通用 ===== */
        .section {
            padding: 64px 0;
        }

        .section-dark {
            background: var(--bg-deep);
            color: #fff;
        }

        .section-light {
            background: var(--bg-light);
        }

        .section-white {
            background: #fff;
        }

        .section-brand {
            background: var(--brand-red);
            color: #fff;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--brand-red);
            margin-bottom: 8px;
        }

        .section-dark .section-label {
            color: var(--brand-orange);
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            letter-spacing: 0.01em;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-brand .section-title {
            color: #fff;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.7;
        }

        .section-dark .section-subtitle {
            color: #B0B8C1;
        }

        .section-brand .section-subtitle {
            color: rgba(255, 255, 255, 0.85);
        }

        /* ===== Hero Banner ===== */
        .hero-about {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            background-attachment: fixed;
        }

        .hero-about::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(26, 29, 35, 0.88) 0%, rgba(26, 29, 35, 0.72) 100%);
            z-index: 1;
        }

        .hero-about .hero-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
            width: 100%;
        }

        .hero-about .hero-content .container {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hero-about .hero-badge {
            display: inline-block;
            background: rgba(201, 42, 42, 0.2);
            border: 1px solid rgba(201, 42, 42, 0.4);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            width: fit-content;
        }

        .hero-about h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            line-height: 1.2;
            max-width: 800px;
        }

        .hero-about .hero-desc {
            font-size: 1.15rem;
            color: #D0D6DD;
            max-width: 640px;
            line-height: 1.8;
        }

        .hero-about .hero-stats-row {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .hero-about .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-about .hero-stat-item .stat-num {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }

        .hero-about .hero-stat-item .stat-unit {
            font-size: 0.9rem;
            color: #B0B8C1;
            letter-spacing: 0.03em;
        }

        /* ===== 品牌介绍区 ===== */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .brand-intro-grid .intro-text h2 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .brand-intro-grid .intro-text p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .brand-intro-grid .intro-text .intro-tags {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .brand-intro-grid .intro-text .intro-tag {
            background: #FFF5F5;
            color: var(--brand-red);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            border: 1px solid rgba(201, 42, 42, 0.15);
        }

        .brand-intro-grid .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .brand-intro-grid .intro-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .brand-intro-grid .intro-image .img-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
            color: #fff;
            padding: 20px 24px;
            font-size: 0.9rem;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        }

        /* ===== 数据指标看板 ===== */
        .stats-board {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            background: var(--bg-deep);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .stats-board .stat-card {
            text-align: center;
            padding: 40px 24px;
            color: #fff;
            border-right: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
            cursor: default;
        }

        .stats-board .stat-card:last-child {
            border-right: none;
        }

        .stats-board .stat-card:hover {
            background: rgba(255, 255, 255, 0.04);
        }

        .stats-board .stat-card .stat-icon {
            font-size: 2rem;
            margin-bottom: 12px;
            color: var(--brand-orange);
        }

        .stats-board .stat-card .stat-number {
            font-size: clamp(2rem, 4vw, 3.5rem);
            font-weight: 800;
            line-height: 1;
            margin-bottom: 6px;
            color: #fff;
            transition: transform 0.3s ease, color 0.3s ease;
        }

        .stats-board .stat-card:hover .stat-number {
            transform: scale(1.08);
            color: var(--brand-orange);
        }

        .stats-board .stat-card .stat-label {
            font-size: 0.9rem;
            color: #B0B8C1;
            letter-spacing: 0.03em;
        }

        /* ===== 时间轴 ===== */
        .timeline {
            position: relative;
            padding: 20px 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--timeline-line);
            transform: translateX(-50%);
        }

        .timeline-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 48px;
            position: relative;
            gap: 40px;
        }

        .timeline-item:nth-child(odd) {
            flex-direction: row;
            padding-right: calc(50% + 40px);
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            flex-direction: row-reverse;
            padding-left: calc(50% + 40px);
            text-align: left;
        }

        .timeline-item .timeline-dot {
            position: absolute;
            left: 50%;
            top: 6px;
            transform: translateX(-50%);
            width: 16px;
            height: 16px;
            background: var(--brand-red);
            border-radius: 50%;
            border: 3px solid #fff;
            box-shadow: var(--shadow-sm);
            z-index: 2;
            transition: all var(--transition);
        }

        .timeline-item:hover .timeline-dot {
            background: var(--brand-orange);
            box-shadow: 0 0 0 8px rgba(201, 42, 42, 0.12);
            transform: translateX(-50%) scale(1.3);
        }

        .timeline-item .timeline-content {
            flex: 1;
            background: var(--bg-card);
            padding: 24px 28px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            position: relative;
        }

        .timeline-item:hover .timeline-content {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateY(-3px);
        }

        .timeline-item .timeline-year {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--brand-red);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .timeline-item .timeline-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .timeline-item .timeline-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .timeline-item .timeline-icon {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: #FFF5F5;
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            font-size: 1.2rem;
            margin-bottom: 8px;
        }

        /* ===== 团队卡片 Grid ===== */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .team-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            text-align: center;
        }

        .team-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateY(-6px);
        }

        .team-card .team-avatar {
            width: 100%;
            height: 260px;
            object-fit: cover;
            background: #F5F5F5;
        }

        .team-card .team-info {
            padding: 20px 16px 24px;
        }

        .team-card .team-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .team-card .team-role {
            font-size: 0.9rem;
            color: var(--brand-red);
            font-weight: 600;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .team-card .team-bio {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            padding: 0 4px;
        }

        /* ===== 价值观列表 ===== */
        .values-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
        }

        .value-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 28px 32px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .value-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateX(6px);
        }

        .value-item .value-number {
            width: 52px;
            height: 52px;
            min-width: 52px;
            background: var(--brand-red);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .value-item .value-content h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .value-item .value-content p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 合作伙伴 ===== */
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
            align-items: center;
        }

        .partner-logo-placeholder {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 28px 16px;
            text-align: center;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-muted);
            transition: all var(--transition);
            cursor: default;
            min-height: 90px;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: 0.03em;
        }

        .partner-logo-placeholder:hover {
            border-color: var(--brand-red);
            box-shadow: var(--shadow-md);
            color: var(--text-primary);
            transform: translateY(-3px);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 64px 0;
            text-align: center;
        }

        .cta-section .cta-inner {
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-section h3 {
            font-size: clamp(1.8rem, 3vw, 2.3rem);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .btn-primary {
            display: inline-block;
            padding: 14px 36px;
            background: #fff;
            color: var(--brand-red);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .btn-primary:hover {
            transform: scale(1.04);
            box-shadow: var(--shadow-lg);
            background: #fff;
            color: #B02525;
        }

        .btn-outline-light {
            display: inline-block;
            padding: 14px 36px;
            background: transparent;
            color: #fff;
            border: 2px solid #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            margin-left: 12px;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: scale(1.04);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            color: #B0B8C1;
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            color: #8A9099;
            line-height: 1.6;
            font-size: 0.85rem;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            color: #8A9099;
            padding: 5px 0;
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: var(--brand-red);
        }

        .footer-col span {
            display: block;
            padding: 5px 0;
            font-size: 0.85rem;
            color: #8A9099;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: #6C757D;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            align-items: center;
        }

        .footer-bottom a {
            color: #6C757D;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--brand-red);
        }

        .footer-bottom .sep {
            color: rgba(255, 255, 255, 0.2);
            margin: 0 4px;
        }

        /* ===== 移动端响应式 ===== */
        @media (max-width: 1024px) {
            .team-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .stats-board {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-board .stat-card {
                border-right: 1px solid rgba(255, 255, 255, 0.1);
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .stats-board .stat-card:nth-child(2) {
                border-right: none;
            }
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .brand-intro-grid .intro-image img {
                height: 300px;
            }
            .timeline::before {
                left: 24px;
            }
            .timeline-item:nth-child(odd),
            .timeline-item:nth-child(even) {
                flex-direction: row;
                padding-left: 60px;
                padding-right: 0;
                text-align: left;
            }
            .timeline-item .timeline-dot {
                left: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .side-nav {
                transform: translateX(-100%);
            }
            .side-nav.open {
                transform: translateX(0);
            }
            .main-area {
                margin-left: 0;
                width: 100%;
            }
            .hamburger-btn {
                display: flex;
            }
            .hero-about {
                min-height: 380px;
                background-attachment: scroll;
            }
            .hero-about h1 {
                font-size: 2rem;
            }
            .hero-about .hero-stats-row {
                gap: 20px;
            }
            .team-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .team-card .team-avatar {
                height: 200px;
            }
            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .values-list {
                gap: 14px;
            }
            .value-item {
                padding: 20px 18px;
                gap: 14px;
            }
            .value-item .value-number {
                width: 40px;
                height: 40px;
                min-width: 40px;
                font-size: 1.1rem;
            }
            .stats-board {
                grid-template-columns: 1fr 1fr;
            }
            .stats-board .stat-card {
                padding: 28px 16px;
            }
            .section {
                padding: 40px 0;
            }
            .brand-intro-grid .intro-image img {
                height: 240px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-section .btn-outline-light {
                margin-left: 0;
                margin-top: 10px;
            }
        }

        @media (max-width: 520px) {
            .team-grid {
                grid-template-columns: 1fr;
                max-width: 360px;
                margin: 0 auto;
            }
            .partners-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stats-board {
                grid-template-columns: 1fr;
            }
            .stats-board .stat-card {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .stats-board .stat-card:last-child {
                border-bottom: none;
            }
            .hero-about .hero-stats-row {
                flex-direction: column;
                gap: 16px;
            }
            .value-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 18px 16px;
            }
            .timeline-item {
                padding-left: 44px;
            }
            .timeline-item .timeline-content {
                padding: 16px 14px;
            }
            .timeline-item .timeline-year {
                font-size: 1.3rem;
            }
            .brand-intro-grid .intro-text .intro-tags {
                gap: 8px;
            }
            .brand-intro-grid .intro-text .intro-tag {
                font-size: 0.8rem;
                padding: 6px 12px;
            }
        }

/* roulang page: category6 */
:root {
            --bg-deep: #1A1D23;
            --bg-card: #FFFFFF;
            --bg-light: #FAFAFA;
            --bg-section: #F5F5F5;
            --brand-red: #C92A2A;
            --brand-orange: #E8590C;
            --text-primary: #1A1D23;
            --text-secondary: #495057;
            --text-muted: #6C757D;
            --text-light: #ADB5BD;
            --border-color: #E9ECEF;
            --border-input: #DEE2E6;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --transition: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --nav-width: 280px;
            --container-max: 1280px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--text-primary);
            background: #fff;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ===== 左侧导航 ===== */
        .side-nav {
            width: var(--nav-width);
            min-width: var(--nav-width);
            background: var(--bg-deep);
            color: #fff;
            display: flex;
            flex-direction: column;
            padding: 28px 24px 24px;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            overflow-y: auto;
            transition: transform 0.35s ease;
        }

        .side-nav .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 36px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .side-nav .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--brand-red);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .side-nav .nav-links {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav .nav-links a {
            display: flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: #B0B8C1;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.01em;
        }

        .side-nav .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .side-nav .nav-links a.active {
            color: #fff;
            background: rgba(201, 42, 42, 0.25);
        }

        .side-nav .nav-links a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--brand-red);
            border-radius: 0 3px 3px 0;
        }

        .side-nav .nav-cta {
            margin-top: auto;
            padding-top: 20px;
        }

        .side-nav .nav-cta .btn-nav-cta {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px 20px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .side-nav .nav-cta .btn-nav-cta:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 右侧主区域 ===== */
        .main-area {
            flex: 1;
            margin-left: var(--nav-width);
            width: calc(100% - var(--nav-width));
            min-height: 100vh;
        }

        /* ===== 汉堡按钮 ===== */
        .hamburger-btn {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            width: 40px;
            height: 40px;
            background: var(--bg-deep);
            border-radius: var(--radius-sm);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border: none;
            box-shadow: var(--shadow-md);
        }

        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.35s ease;
        }

        .nav-overlay.show {
            display: block;
            opacity: 1;
        }

        /* ===== Hero 内页 ===== */
        .page-hero {
            background: var(--bg-deep);
            color: #fff;
            padding: 60px 0 56px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .page-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            backdrop-filter: blur(6px);
        }

        .page-hero h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 700;
            letter-spacing: 0.02em;
            line-height: 1.25;
            margin-bottom: 14px;
            color: #fff;
        }

        .page-hero .hero-subtitle {
            font-size: 1.1rem;
            color: #B0B8C1;
            max-width: 620px;
            line-height: 1.65;
        }

        /* ===== 联系表单+信息区 ===== */
        .contact-section {
            padding: 64px 0;
            background: var(--bg-light);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .contact-form-wrap {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .contact-form-wrap h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .contact-form-wrap .form-intro {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 24px;
            line-height: 1.5;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 6px;
            letter-spacing: 0.01em;
        }

        .form-group label .required {
            color: var(--brand-red);
            margin-left: 2px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--border-input);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            transition: all 0.2s ease;
            background: #fff;
            color: var(--text-primary);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--brand-red);
            box-shadow: 0 0 0 3px rgba(201, 42, 42, 0.1);
            outline: none;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        .form-group select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236C757D' d='M1.41 0L6 4.59 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
            cursor: pointer;
        }

        .btn-submit {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 14px 28px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-submit:hover {
            background: #B02525;
            transform: scale(1.02);
            box-shadow: var(--shadow-md);
        }

        .btn-submit:active {
            transform: scale(0.98);
        }

        .contact-info-cards {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .info-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .info-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateY(-2px);
        }

        .info-card .info-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(201, 42, 42, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.25rem;
            color: var(--brand-red);
        }

        .info-card .info-content h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .info-card .info-content p,
        .info-card .info-content a {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .info-card .info-content a:hover {
            color: var(--brand-red);
        }

        /* ===== 地图占位区 ===== */
        .map-section {
            padding: 0;
            background: #fff;
        }

        .map-placeholder {
            width: 100%;
            height: 380px;
            background: #E9ECEF;
            position: relative;
            overflow: hidden;
            border-radius: 0;
        }

        .map-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .map-overlay {
            position: absolute;
            inset: 0;
            background: rgba(26, 29, 35, 0.55);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 10px;
            color: #fff;
            text-align: center;
        }

        .map-overlay .map-pin {
            width: 48px;
            height: 48px;
            background: var(--brand-red);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(201, 42, 42, 0.5);
            animation: pulse-pin 2s ease-in-out infinite;
        }

        @keyframes pulse-pin {
            0%,
            100% {
                box-shadow: 0 4px 16px rgba(201, 42, 42, 0.5);
            }
            50% {
                box-shadow: 0 4px 32px rgba(201, 42, 42, 0.8), 0 0 0 18px rgba(201, 42, 42, 0.1);
            }
        }

        .map-overlay .map-address {
            font-size: 1.1rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .map-overlay .map-sub {
            font-size: 0.85rem;
            color: #B0B8C1;
        }

        /* ===== 合作流程 ===== */
        .process-section {
            padding: 64px 0;
            background: #fff;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header h2 {
            font-size: clamp(1.6rem, 2.8vw, 2.2rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .section-header .section-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: 28px 20px;
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .process-step:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateY(-4px);
            background: #fff;
        }

        .process-step .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--brand-red);
            color: #fff;
            font-size: 1.25rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            letter-spacing: 0.02em;
        }

        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .process-step .step-arrow {
            display: none;
        }

        /* ===== 优势区 ===== */
        .advantages-section {
            padding: 64px 0;
            background: var(--bg-section);
        }

        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .advantage-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            text-align: center;
        }

        .advantage-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateY(-4px);
        }

        .advantage-card .adv-icon {
            font-size: 2rem;
            margin-bottom: 14px;
            display: block;
        }

        .advantage-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .advantage-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 数据指标条 ===== */
        .stats-strip {
            padding: 44px 0;
            background: var(--bg-deep);
            color: #fff;
        }

        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            padding: 16px 10px;
            border-right: 1px solid rgba(255, 255, 255, 0.12);
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-item .stat-number {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 800;
            color: var(--brand-orange);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 0.85rem;
            color: #B0B8C1;
            margin-top: 4px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 64px 0;
            background: #fff;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px 32px;
            max-width: 960px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            background: #fff;
        }

        .faq-item:hover {
            border-color: #ccc;
        }

        .faq-item .faq-question {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--text-primary);
            user-select: none;
            transition: color var(--transition);
            letter-spacing: 0.01em;
        }

        .faq-item .faq-question:hover {
            color: var(--brand-red);
        }

        .faq-item .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            transition: all 0.3s ease;
            color: var(--text-muted);
        }

        .faq-item.open .faq-icon {
            background: var(--brand-red);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease, padding 0.35s ease;
            padding: 0 20px;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.65;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-item.open {
            border-color: var(--brand-red);
            box-shadow: var(--shadow-sm);
        }

        .faq-qnum {
            font-weight: 700;
            color: var(--brand-red);
            margin-right: 8px;
            font-size: 0.9rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 60px 0;
            background: var(--brand-red);
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(1.6rem, 2.8vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-cta-white {
            display: inline-block;
            padding: 14px 32px;
            background: #fff;
            color: var(--brand-red);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.03em;
            transition: all var(--transition);
        }

        .cta-section .btn-cta-white:hover {
            background: #f0f0f0;
            transform: scale(1.04);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            color: #B0B8C1;
            padding: 48px 0 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            color: #8A9099;
            font-size: 0.85rem;
            line-height: 1.6;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            color: #8A9099;
            font-size: 0.85rem;
            margin-bottom: 8px;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: var(--brand-red);
        }

        .footer-bottom {
            text-align: center;
            padding: 20px 0 24px;
            font-size: 0.78rem;
            color: #6C757D;
            line-height: 2;
        }

        .footer-bottom a {
            color: #8A9099;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--brand-red);
        }

        .footer-bottom .sep {
            margin: 0 10px;
            color: #4A4F55;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-item {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                padding: 14px 10px;
            }
            .stat-item:nth-child(3),
            .stat-item:nth-child(4) {
                border-bottom: none;
            }
            .faq-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .side-nav {
                transform: translateX(-100%);
            }
            .side-nav.open {
                transform: translateX(0);
            }
            .hamburger-btn {
                display: flex;
            }
            .nav-overlay.show {
                display: block;
            }
            .main-area {
                margin-left: 0;
                width: 100%;
            }
            .page-hero {
                padding: 44px 0 36px;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .contact-form-wrap {
                padding: 24px 18px;
            }
            .contact-grid {
                gap: 24px;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .advantages-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
            }
            .map-placeholder {
                height: 260px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-section {
                padding: 40px 16px;
            }
        }

        @media (max-width: 520px) {
            .process-steps {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-row {
                grid-template-columns: 1fr;
            }
            .stat-item {
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                border-right: none;
            }
            .stat-item:last-child {
                border-bottom: none;
            }
            .map-placeholder {
                height: 200px;
            }
            .page-hero {
                padding: 32px 0 28px;
            }
            .page-hero h1 {
                font-size: 1.35rem;
            }
            .contact-form-wrap {
                padding: 20px 14px;
            }
            .info-card {
                padding: 18px 16px;
                flex-direction: column;
                gap: 10px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-deep: #1A1D23;
            --bg-card: #FFFFFF;
            --bg-light: #FAFAFA;
            --bg-section: #F5F5F5;
            --brand-red: #C92A2A;
            --brand-orange: #E8590C;
            --text-primary: #1A1D23;
            --text-secondary: #495057;
            --text-muted: #6C757D;
            --text-light: #ADB5BD;
            --border-color: #E9ECEF;
            --border-input: #DEE2E6;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --transition: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --nav-width: 280px;
            --container-max: 1280px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--text-primary);
            background: #fff;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 左侧导航 ===== */
        .side-nav {
            width: var(--nav-width);
            min-width: var(--nav-width);
            background: var(--bg-deep);
            color: #fff;
            display: flex;
            flex-direction: column;
            padding: 28px 24px 24px;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            overflow-y: auto;
            transition: transform 0.35s ease;
        }

        .side-nav .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 36px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .side-nav .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--brand-red);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .side-nav .nav-links {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav .nav-links a {
            display: flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: #B0B8C1;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.01em;
        }

        .side-nav .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .side-nav .nav-links a.active {
            color: #fff;
            background: rgba(201, 42, 42, 0.25);
        }

        .side-nav .nav-links a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--brand-red);
            border-radius: 0 3px 3px 0;
        }

        .side-nav .nav-cta {
            margin-top: auto;
            padding-top: 20px;
        }

        .side-nav .nav-cta .btn-nav-cta {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px 20px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .side-nav .nav-cta .btn-nav-cta:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 右侧主区域 ===== */
        .main-area {
            flex: 1;
            margin-left: var(--nav-width);
            width: calc(100% - var(--nav-width));
            min-height: 100vh;
        }

        /* ===== 汉堡按钮 ===== */
        .hamburger-btn {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            width: 40px;
            height: 40px;
            background: var(--bg-deep);
            border-radius: var(--radius-sm);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border: none;
            box-shadow: var(--shadow-md);
        }

        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 999;
        }

        .nav-overlay.show {
            display: block;
        }

        /* ===== Hero 资源中心 ===== */
        .resource-hero {
            background: linear-gradient(135deg, #1A1D23 0%, #252830 40%, #1A1D23 100%);
            color: #fff;
            padding: 60px 0 70px;
            position: relative;
            overflow: hidden;
        }

        .resource-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(201, 42, 42, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .resource-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(232, 89, 12, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .resource-hero .container {
            position: relative;
            z-index: 1;
        }

        .resource-hero-top {
            display: flex;
            gap: 48px;
            align-items: center;
            flex-wrap: wrap;
        }

        .resource-hero-text {
            flex: 1;
            min-width: 300px;
        }

        .resource-hero-text .section-label {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            color: #f0f0f0;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .resource-hero-text h1 {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .resource-hero-text h1 .highlight {
            color: var(--brand-orange);
        }

        .resource-hero-text .hero-desc {
            font-size: 1.05rem;
            color: #B0B8C1;
            line-height: 1.6;
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-search-wrap {
            display: flex;
            gap: 0;
            max-width: 500px;
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .hero-search-wrap input {
            flex: 1;
            padding: 14px 18px;
            border: none;
            font-size: 0.95rem;
            color: var(--text-primary);
            background: #fff;
            min-width: 0;
        }

        .hero-search-wrap input::placeholder {
            color: var(--text-light);
        }

        .hero-search-wrap button {
            padding: 14px 24px;
            background: var(--brand-red);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            white-space: nowrap;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .hero-search-wrap button:hover {
            background: #B02525;
        }

        .hero-stats-row {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hero-stat-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--brand-orange);
            letter-spacing: -0.02em;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: #8A9099;
            line-height: 1.3;
        }

        .resource-hero-visual {
            flex: 0 0 380px;
            min-width: 280px;
            position: relative;
        }

        .resource-hero-visual img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .hero-badge-float {
            position: absolute;
            bottom: -16px;
            right: -16px;
            background: var(--brand-orange);
            color: #fff;
            padding: 10px 18px;
            border-radius: var(--radius);
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-md);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        /* ===== 分类筛选栏 ===== */
        .filter-section {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .filter-inner {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .filter-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-tag {
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            background: var(--bg-light);
            color: var(--text-secondary);
            border: 1px solid transparent;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .filter-tag:hover {
            border-color: var(--brand-red);
            color: var(--brand-red);
            background: #FFF5F5;
        }

        .filter-tag.active {
            background: var(--brand-red);
            color: #fff;
            border-color: var(--brand-red);
            font-weight: 600;
        }

        .filter-count {
            margin-left: auto;
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .filter-count strong {
            color: var(--text-primary);
            font-weight: 700;
        }

        /* ===== 资源卡片Grid ===== */
        .resources-grid-section {
            padding: 56px 0;
            background: var(--bg-light);
        }

        .resources-grid-section .section-header {
            margin-bottom: 36px;
        }

        .section-header h2 {
            font-size: clamp(1.6rem, 2.5vw, 2rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }

        .section-header .section-subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.5;
        }

        .resources-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .resource-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .resource-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateY(-4px);
        }

        .resource-card-img {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #EAECEF;
        }

        .resource-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .resource-card:hover .resource-card-img img {
            transform: scale(1.04);
        }

        .resource-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            z-index: 2;
        }

        .badge-report {
            background: #E8F5E9;
            color: #2E7D32;
        }

        .badge-whitepaper {
            background: #E3F2FD;
            color: #1565C0;
        }

        .badge-tool {
            background: #FFF3E0;
            color: #E65100;
        }

        .badge-video {
            background: #FCE4EC;
            color: #C62828;
        }

        .badge-insight {
            background: #F3E5F5;
            color: #6A1B9A;
        }

        .resource-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .resource-card-body h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            letter-spacing: 0.01em;
        }

        .resource-card-body .card-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 14px;
            flex: 1;
        }

        .resource-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-light);
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }

        .resource-card-meta .file-info {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .btn-card-download {
            padding: 7px 16px;
            background: transparent;
            border: 1px solid var(--brand-red);
            color: var(--brand-red);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.8rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .btn-card-download:hover {
            background: var(--brand-red);
            color: #fff;
        }

        .btn-card-view {
            padding: 7px 16px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.8rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.02em;
            border: 1px solid var(--brand-red);
        }

        .btn-card-view:hover {
            background: #B02525;
            border-color: #B02525;
            transform: scale(1.03);
        }

        /* ===== 精选推荐区 ===== */
        .featured-section {
            padding: 60px 0;
            background: #fff;
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .featured-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            display: flex;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            min-height: 200px;
        }

        .featured-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-red);
            transform: translateY(-3px);
        }

        .featured-card-img {
            flex: 0 0 200px;
            overflow: hidden;
            background: #EAECEF;
        }

        .featured-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .featured-card:hover .featured-card-img img {
            transform: scale(1.05);
        }

        .featured-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-card-body .feat-tag {
            display: inline-block;
            padding: 4px 10px;
            background: #FFF5F5;
            color: var(--brand-red);
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
            width: fit-content;
        }

        .featured-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }

        .featured-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 14px;
        }

        .featured-card-body .btn-feat {
            align-self: flex-start;
            padding: 9px 20px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .featured-card-body .btn-feat:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 邀请裂变区 ===== */
        .invite-section {
            padding: 60px 0;
            background: var(--bg-deep);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .invite-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(232, 89, 12, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .invite-section .container {
            position: relative;
            z-index: 1;
        }

        .invite-inner {
            display: flex;
            gap: 48px;
            align-items: center;
            flex-wrap: wrap;
        }

        .invite-text {
            flex: 1;
            min-width: 280px;
        }

        .invite-text h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .invite-text h2 .highlight {
            color: var(--brand-orange);
        }

        .invite-text .invite-desc {
            color: #B0B8C1;
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 24px;
            max-width: 480px;
        }

        .invite-rewards {
            display: flex;
            gap: 20px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .invite-reward-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 16px 20px;
            text-align: center;
            min-width: 100px;
            transition: all var(--transition);
        }

        .invite-reward-item:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--brand-orange);
        }

        .invite-reward-item .reward-icon {
            font-size: 1.8rem;
            margin-bottom: 6px;
        }

        .invite-reward-item .reward-title {
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
        }

        .invite-reward-item .reward-detail {
            font-size: 0.75rem;
            color: #8A9099;
            margin-top: 2px;
        }

        .invite-progress-wrap {
            margin-bottom: 20px;
            max-width: 480px;
        }

        .invite-progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            margin-bottom: 8px;
            color: #B0B8C1;
        }

        .invite-progress-bar {
            height: 10px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 5px;
            overflow: hidden;
        }

        .invite-progress-fill {
            height: 100%;
            background: var(--brand-orange);
            border-radius: 5px;
            transition: width 0.6s ease;
            width: 40%;
        }

        .btn-invite {
            display: inline-block;
            padding: 13px 30px;
            background: var(--brand-orange);
            color: #fff;
            border-radius: var(--radius);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-invite:hover {
            background: #D14D0A;
            transform: scale(1.04);
            box-shadow: var(--shadow-lg);
        }

        .invite-visual {
            flex: 0 0 300px;
            min-width: 240px;
            text-align: center;
        }

        .invite-visual img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            object-fit: cover;
            aspect-ratio: 3/4;
        }

        /* ===== 深度内容区 ===== */
        .deep-content-section {
            padding: 60px 0;
            background: #fff;
        }

        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .deep-content-text h2 {
            font-size: clamp(1.5rem, 2.5vw, 1.9rem);
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .deep-content-text p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
            text-align: justify;
        }

        .deep-content-stats {
            display: flex;
            gap: 28px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .deep-stat-card {
            text-align: center;
            padding: 16px 20px;
            background: var(--bg-light);
            border-radius: var(--radius);
            min-width: 90px;
            border: 1px solid var(--border-color);
        }

        .deep-stat-card .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--brand-red);
            letter-spacing: -0.02em;
        }

        .deep-stat-card .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .deep-content-visual img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-light);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 0.95rem;
            user-select: none;
            letter-spacing: 0.01em;
            transition: background var(--transition);
            gap: 12px;
        }

        .faq-question:hover {
            background: #FAFAFA;
        }

        .faq-question .faq-num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            background: var(--bg-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--brand-red);
        }

        .faq-question .faq-icon {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-red);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease, padding 0.5s ease;
            padding: 0 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* ===== CTA区 ===== */
        .cta-section {
            padding: 60px 0;
            background: var(--brand-red);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .cta-section .cta-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 540px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 180px;
            padding: 13px 16px;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            font-size: 0.95rem;
            background: #fff;
            color: var(--text-primary);
            transition: all var(--transition);
        }

        .cta-form input:focus {
            border-color: var(--brand-orange);
            box-shadow: 0 0 0 3px rgba(232, 89, 12, 0.2);
        }

        .btn-cta-submit {
            padding: 13px 28px;
            background: #fff;
            color: var(--brand-red);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            border: 2px solid #fff;
            white-space: nowrap;
        }

        .btn-cta-submit:hover {
            background: #FFF5F5;
            transform: scale(1.04);
            box-shadow: var(--shadow-lg);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            color: #B0B8C1;
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: #8A9099;
            line-height: 1.6;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a,
        .footer-col span {
            display: block;
            font-size: 0.85rem;
            color: #8A9099;
            margin-bottom: 8px;
            transition: color var(--transition);
            line-height: 1.5;
        }

        .footer-col a:hover {
            color: var(--brand-orange);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: #6C757D;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 6px 16px;
            align-items: center;
        }

        .footer-bottom a {
            color: #8A9099;
            font-size: 0.8rem;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--brand-orange);
        }

        .footer-bottom .sep {
            color: #495057;
            margin: 0 2px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1200px) {
            .resources-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .featured-grid {
                grid-template-columns: 1fr 1fr;
            }
            .featured-card {
                flex-direction: column;
            }
            .featured-card-img {
                flex: 0 0 auto;
                aspect-ratio: 16/9;
            }
        }

        @media (max-width: 1024px) {
            .resources-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .resource-hero-top {
                flex-direction: column;
                gap: 32px;
            }
            .resource-hero-visual {
                flex: 0 0 auto;
                width: 100%;
                max-width: 400px;
            }
            .invite-inner {
                flex-direction: column;
            }
            .invite-visual {
                flex: 0 0 auto;
                width: 100%;
                max-width: 280px;
            }
        }

        @media (max-width: 768px) {
            .side-nav {
                transform: translateX(-100%);
            }
            .side-nav.open {
                transform: translateX(0);
            }
            .main-area {
                margin-left: 0;
                width: 100%;
            }
            .hamburger-btn {
                display: flex;
            }
            .resources-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .filter-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .filter-count {
                margin-left: 0;
            }
            .hero-search-wrap {
                flex-direction: column;
                max-width: 100%;
            }
            .hero-search-wrap button {
                width: 100%;
                text-align: center;
            }
            .resource-hero {
                padding: 40px 0 48px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input {
                width: 100%;
            }
            .btn-cta-submit {
                width: 100%;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .resource-card-body {
                padding: 14px;
            }
            .invite-rewards {
                flex-direction: column;
                gap: 10px;
            }
            .deep-content-stats {
                gap: 12px;
            }
            .deep-stat-card {
                flex: 1;
                min-width: 70px;
                padding: 12px;
            }
        }

        @media (max-width: 520px) {
            .resources-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .hero-stat-num {
                font-size: 1.3rem;
            }
            .hero-badge-float {
                position: static;
                margin-top: 12px;
                display: inline-block;
            }
            .resource-hero-visual {
                max-width: 100%;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tag {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .featured-card-body {
                padding: 16px;
            }
            .featured-card-body h3 {
                font-size: 1rem;
            }
        }

/* roulang page: category7 */
:root {
            --bg-deep: #1A1D23;
            --bg-card: #FFFFFF;
            --bg-light: #FAFAFA;
            --bg-section: #F5F5F5;
            --brand-red: #C92A2A;
            --brand-orange: #E8590C;
            --text-primary: #1A1D23;
            --text-secondary: #495057;
            --text-muted: #6C757D;
            --text-light: #ADB5BD;
            --border-color: #E9ECEF;
            --border-input: #DEE2E6;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --transition: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --nav-width: 280px;
            --container-max: 1280px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--text-primary);
            background: #fff;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }

        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 左侧导航 ===== */
        .side-nav {
            width: var(--nav-width);
            min-width: var(--nav-width);
            background: var(--bg-deep);
            color: #fff;
            display: flex;
            flex-direction: column;
            padding: 28px 24px 24px;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            overflow-y: auto;
            transition: transform 0.35s ease;
        }

        .side-nav .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 36px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .side-nav .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--brand-red);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .side-nav .nav-links {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav .nav-links a {
            display: flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: #B0B8C1;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.01em;
        }

        .side-nav .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .side-nav .nav-links a.active {
            color: #fff;
            background: rgba(201, 42, 42, 0.25);
        }

        .side-nav .nav-links a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--brand-red);
            border-radius: 0 3px 3px 0;
        }

        .side-nav .nav-cta {
            margin-top: auto;
            padding-top: 20px;
        }

        .side-nav .nav-cta .btn-nav-cta {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px 20px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .side-nav .nav-cta .btn-nav-cta:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 右侧主区域 ===== */
        .main-area {
            flex: 1;
            margin-left: var(--nav-width);
            width: calc(100% - var(--nav-width));
            min-height: 100vh;
            background: #fff;
        }

        /* ===== 汉堡按钮 ===== */
        .hamburger-btn {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            width: 40px;
            height: 40px;
            background: var(--bg-deep);
            border-radius: var(--radius-sm);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border: none;
            box-shadow: var(--shadow-md);
        }

        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== 导航遮罩 ===== */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            transition: opacity 0.35s ease;
        }

        .nav-overlay.active {
            display: block;
        }

        /* ===== Hero Section ===== */
        .hero-section {
            background: var(--bg-light);
            padding: 60px 0 48px;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-section .container {
            max-width: 1100px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 42, 42, 0.08);
            color: var(--brand-red);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            background: var(--brand-red);
            border-radius: 50%;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.6);
            }
        }

        .hero-section h1 {
            font-size: clamp(2rem, 3.5vw, 2.8rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
            line-height: 1.25;
        }

        .hero-section .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 28px;
            max-width: 680px;
            line-height: 1.6;
        }

        .hero-search-wrap {
            display: flex;
            gap: 10px;
            max-width: 560px;
        }

        .hero-search-wrap input {
            flex: 1;
            padding: 13px 18px;
            border: 2px solid var(--border-input);
            border-radius: var(--radius);
            font-size: 0.95rem;
            transition: all var(--transition);
            background: #fff;
            color: var(--text-primary);
        }

        .hero-search-wrap input:focus {
            border-color: var(--brand-red);
            box-shadow: 0 0 0 3px rgba(201, 42, 42, 0.08);
        }

        .hero-search-wrap .btn-search {
            padding: 13px 24px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .hero-search-wrap .btn-search:hover {
            background: #B02525;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        /* ===== 统计条 ===== */
        .stats-strip {
            background: #fff;
            padding: 28px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .stats-strip .container {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
            max-width: 1000px;
        }

        .stat-item {
            text-align: center;
            flex: 1;
            min-width: 120px;
            padding: 8px 16px;
        }

        .stat-item .stat-number {
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            font-weight: 800;
            color: var(--brand-red);
            letter-spacing: 0.02em;
            line-height: 1.1;
        }

        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .stat-divider {
            width: 1px;
            background: var(--border-color);
            align-self: stretch;
            flex-shrink: 0;
        }

        /* ===== 分类筛选标签栏 ===== */
        .filter-section {
            background: #fff;
            padding: 24px 0;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 50;
        }

        .filter-section .container {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            max-width: 1100px;
        }

        .filter-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            white-space: nowrap;
            margin-right: 4px;
        }

        .filter-tag {
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            background: var(--bg-light);
            color: var(--text-secondary);
            border: 1px solid transparent;
            white-space: nowrap;
            user-select: none;
        }

        .filter-tag:hover {
            background: #f0f0f0;
            color: var(--text-primary);
        }

        .filter-tag.active {
            background: var(--brand-red);
            color: #fff;
            border-color: var(--brand-red);
            font-weight: 600;
        }

        /* ===== 主内容区：新闻列表 + 侧栏 ===== */
        .content-section {
            padding: 40px 0 32px;
            background: #fff;
        }

        .content-section .container {
            max-width: 1100px;
            display: flex;
            gap: 36px;
            align-items: flex-start;
        }

        .news-list-main {
            flex: 1;
            min-width: 0;
        }

        .news-sidebar {
            width: 320px;
            flex-shrink: 0;
            position: sticky;
            top: 80px;
        }

        /* 新闻卡片 */
        .news-card {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border-color);
            transition: all var(--transition);
            cursor: pointer;
            align-items: flex-start;
        }

        .news-card:hover {
            background: #fdfdff;
            padding-left: 12px;
            margin-left: -12px;
            border-radius: var(--radius);
            border-bottom-color: transparent;
            box-shadow: var(--shadow-sm);
        }

        .news-card .news-thumb {
            width: 140px;
            height: 100px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: #f0f0f0;
        }

        .news-card .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-card:hover .news-thumb img {
            transform: scale(1.06);
        }

        .news-card .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-card .news-meta {
            display: flex;
            gap: 12px;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .news-card .news-meta .news-cat {
            background: rgba(201, 42, 42, 0.07);
            color: var(--brand-red);
            padding: 2px 10px;
            border-radius: 12px;
            font-weight: 500;
            font-size: 0.75rem;
        }

        .news-card .news-title {
            font-size: 1.08rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            transition: color var(--transition);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card:hover .news-title {
            color: var(--brand-red);
        }

        .news-card .news-summary {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .news-readmore {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--brand-red);
            margin-top: 8px;
            transition: all var(--transition);
        }

        .news-card .news-readmore .arrow {
            transition: transform var(--transition);
            display: inline-block;
        }

        .news-card:hover .news-readmore .arrow {
            transform: translateX(4px);
        }

        /* 侧栏 */
        .sidebar-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--brand-red);
            display: inline-block;
            letter-spacing: 0.01em;
        }

        .sidebar-card .hot-item {
            display: flex;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid #f5f5f5;
            transition: all var(--transition);
            cursor: pointer;
            align-items: flex-start;
        }

        .sidebar-card .hot-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .sidebar-card .hot-item:hover {
            color: var(--brand-red);
        }

        .sidebar-card .hot-item .hot-rank {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--brand-red);
            flex-shrink: 0;
            width: 28px;
            text-align: center;
            line-height: 1.2;
        }

        .sidebar-card .hot-item .hot-rank.silver {
            color: #E8590C;
        }
        .sidebar-card .hot-item .hot-rank.bronze {
            color: #495057;
        }

        .sidebar-card .hot-item .hot-info {
            flex: 1;
            min-width: 0;
        }

        .sidebar-card .hot-item .hot-title {
            font-size: 0.9rem;
            font-weight: 500;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .sidebar-card .hot-item .hot-date {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-top: 3px;
        }

        /* 标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud .tag-pill {
            padding: 5px 14px;
            border-radius: 16px;
            font-size: 0.8rem;
            background: var(--bg-light);
            color: var(--text-secondary);
            transition: all var(--transition);
            cursor: pointer;
            border: 1px solid transparent;
        }

        .tag-cloud .tag-pill:hover {
            background: rgba(201, 42, 42, 0.06);
            color: var(--brand-red);
            border-color: rgba(201, 42, 42, 0.2);
        }

        /* ===== 分页 ===== */
        .pagination-section {
            padding: 20px 0 48px;
            background: #fff;
            text-align: center;
        }

        .pagination-section .container {
            max-width: 1100px;
        }

        .pagination {
            display: inline-flex;
            gap: 6px;
            align-items: center;
            flex-wrap: wrap;
            justify-content: center;
        }

        .pagination .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition);
            background: #fff;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            cursor: pointer;
            user-select: none;
        }

        .pagination .page-btn:hover {
            background: var(--bg-light);
            border-color: #ccc;
            color: var(--text-primary);
        }

        .pagination .page-btn.active {
            background: var(--brand-red);
            color: #fff;
            border-color: var(--brand-red);
            font-weight: 700;
            box-shadow: var(--shadow-sm);
        }

        .pagination .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
            cursor: not-allowed;
        }

        .pagination .page-dots {
            padding: 0 4px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== 深度报道专题 ===== */
        .featured-section {
            background: var(--bg-section);
            padding: 56px 0;
        }

        .featured-section .container {
            max-width: 1100px;
        }

        .section-heading {
            font-size: clamp(1.5rem, 2.5vw, 1.9rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }

        .section-subheading {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 32px;
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .featured-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
            border: 1px solid var(--border-color);
        }

        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: #d0d0d0;
        }

        .featured-card .fc-img {
            height: 180px;
            overflow: hidden;
            background: #e8e8e8;
        }

        .featured-card .fc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .featured-card:hover .fc-img img {
            transform: scale(1.08);
        }

        .featured-card .fc-body {
            padding: 20px;
        }

        .featured-card .fc-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--brand-orange);
            background: rgba(232, 89, 12, 0.08);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 10px;
        }

        .featured-card .fc-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .featured-card .fc-date {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* ===== 赛事快讯 ===== */
        .flash-section {
            background: #fff;
            padding: 48px 0;
        }

        .flash-section .container {
            max-width: 1100px;
        }

        .flash-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border-left: 3px solid var(--border-color);
            padding-left: 24px;
            margin-left: 8px;
        }

        .flash-item {
            position: relative;
            padding: 14px 0 14px 20px;
            transition: all var(--transition);
            cursor: pointer;
            border-bottom: 1px dashed #f0f0f0;
        }

        .flash-item:last-child {
            border-bottom: none;
        }

        .flash-item::before {
            content: '';
            position: absolute;
            left: -33px;
            top: 20px;
            width: 10px;
            height: 10px;
            background: #fff;
            border: 2px solid var(--brand-red);
            border-radius: 50%;
            transition: all var(--transition);
        }

        .flash-item:hover::before {
            background: var(--brand-red);
            box-shadow: 0 0 0 6px rgba(201, 42, 42, 0.12);
        }

        .flash-item .flash-time {
            font-size: 0.78rem;
            color: var(--brand-red);
            font-weight: 600;
            margin-bottom: 2px;
        }

        .flash-item .flash-title {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.5;
            transition: color var(--transition);
        }

        .flash-item:hover .flash-title {
            color: var(--brand-red);
        }

        /* ===== 媒体聚焦 ===== */
        .media-section {
            background: var(--bg-light);
            padding: 48px 0;
        }

        .media-section .container {
            max-width: 1100px;
        }

        .media-quotes {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .media-quote-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
        }

        .media-quote-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #d5d5d5;
        }

        .media-quote-card .quote-mark {
            font-size: 3rem;
            color: var(--brand-red);
            opacity: 0.2;
            line-height: 1;
            position: absolute;
            top: 16px;
            left: 20px;
            font-family: Georgia, serif;
        }

        .media-quote-card .quote-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            padding-left: 8px;
            font-style: italic;
        }

        .media-quote-card .quote-source {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            padding-left: 8px;
        }

        /* ===== 订阅CTA ===== */
        .cta-section {
            background: var(--bg-deep);
            padding: 56px 0;
            color: #fff;
        }

        .cta-section .container {
            max-width: 700px;
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(1.6rem, 2.5vw, 2rem);
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .cta-section .cta-desc {
            font-size: 1rem;
            color: #B0B8C1;
            margin-bottom: 28px;
            line-height: 1.6;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 13px 18px;
            border-radius: var(--radius);
            border: 2px solid transparent;
            font-size: 0.95rem;
            background: #2a2d35;
            color: #fff;
            transition: all var(--transition);
        }

        .cta-form input:focus {
            border-color: var(--brand-red);
            background: #22252c;
            box-shadow: 0 0 0 3px rgba(201, 42, 42, 0.2);
        }

        .cta-form input::placeholder {
            color: #6a6f78;
        }

        .cta-form .btn-submit {
            padding: 13px 28px;
            background: var(--brand-red);
            color: #fff;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .cta-form .btn-submit:hover {
            background: #B02525;
            transform: scale(1.04);
            box-shadow: var(--shadow-lg);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            color: #B0B8C1;
            padding: 48px 0 0;
            font-size: 0.9rem;
        }

        .site-footer .container {
            max-width: 1100px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: #8A9099;
            line-height: 1.6;
            max-width: 260px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #8A9099;
            padding: 5px 0;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-col span {
            display: block;
            font-size: 0.85rem;
            color: #8A9099;
            padding: 5px 0;
        }

        .footer-bottom {
            text-align: center;
            padding: 20px 0 24px;
            font-size: 0.8rem;
            color: #6a6f78;
        }

        .footer-bottom p {
            margin-bottom: 4px;
        }

        .footer-bottom a {
            color: #8A9099;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: #4a4f56;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-sidebar {
                width: 280px;
            }
            .news-card .news-thumb {
                width: 110px;
                height: 80px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .side-nav {
                transform: translateX(-100%);
            }
            .side-nav.open {
                transform: translateX(0);
            }
            .nav-overlay.active {
                display: block;
            }
            .hamburger-btn {
                display: flex;
            }
            .main-area {
                margin-left: 0;
                width: 100%;
            }
            .content-section .container {
                flex-direction: column;
                gap: 28px;
            }
            .news-sidebar {
                width: 100%;
                position: static;
                order: 3;
            }
            .news-list-main {
                order: 2;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .media-quotes {
                grid-template-columns: 1fr;
            }
            .stats-strip .container {
                gap: 12px;
            }
            .stat-divider {
                display: none;
            }
            .stat-item {
                min-width: 80px;
                flex: 1 1 40%;
            }
            .hero-section {
                padding: 40px 0 32px;
            }
            .hero-section h1 {
                font-size: 1.6rem;
            }
            .news-card {
                flex-direction: column;
                gap: 12px;
            }
            .news-card .news-thumb {
                width: 100%;
                height: 160px;
            }
            .news-card:hover {
                padding-left: 0;
                margin-left: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .filter-section .container {
                gap: 6px;
            }
            .filter-tag {
                padding: 5px 12px;
                font-size: 0.8rem;
            }
            .pagination .page-btn {
                min-width: 34px;
                height: 34px;
                font-size: 0.8rem;
                padding: 0 8px;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                min-width: 100%;
                width: 100%;
                max-width: 400px;
            }
            .flash-list {
                padding-left: 16px;
                margin-left: 4px;
            }
            .flash-item {
                padding-left: 14px;
            }
            .flash-item::before {
                left: -25px;
                width: 8px;
                height: 8px;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                padding: 28px 0 24px;
            }
            .hero-section h1 {
                font-size: 1.35rem;
            }
            .hero-search-wrap {
                flex-direction: column;
            }
            .hero-search-wrap .btn-search {
                width: 100%;
                text-align: center;
            }
            .stats-strip .container {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 8px;
            }
            .stat-item {
                flex: 1 1 45%;
                min-width: 70px;
                padding: 6px;
            }
            .stat-item .stat-number {
                font-size: 1.3rem;
            }
            .stat-item .stat-label {
                font-size: 0.75rem;
            }
            .featured-card .fc-img {
                height: 140px;
            }
            .filter-section {
                padding: 16px 0;
            }
            .filter-tag {
                padding: 4px 10px;
                font-size: 0.75rem;
                border-radius: 14px;
            }
            .pagination .page-btn {
                min-width: 30px;
                height: 30px;
                font-size: 0.75rem;
                padding: 0 6px;
            }
            .container {
                padding: 0 14px;
            }
        }