/* roulang page: index */
:root {
            --primary-blue: #2563EB;
            --primary-blue-hover: #1D4ED8;
            --primary-blue-light: #EFF6FF;
            --bg-page: #F8FAFC;
            --bg-section-alt: #F1F5F9;
            --card-bg: #FFFFFF;
            --border-light: #E2E8F0;
            --border-input: #CBD5E1;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-footer: #94A3B8;
            --footer-bg: #1E293B;
            --accent-orange: #F97316;
            --accent-orange-hover: #EA580C;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-nav: 0 1px 4px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-lg: 120px;
            --section-gap-sm: 60px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-page);
            color: var(--text-body);
            line-height: 1.7;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary-blue-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
            font-size: 1rem;
        }
        input:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid transparent;
            transition: all var(--transition-smooth);
        }
        .site-header.scrolled {
            border-bottom-color: var(--border-light);
            box-shadow: var(--shadow-nav);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 0;
            gap: 12px;
        }
        .brand-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-link:hover {
            color: var(--primary-blue);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary-blue);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .hot-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .hot-tag {
            display: inline-block;
            padding: 5px 12px;
            background: #F1F5F9;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-body);
            white-space: nowrap;
            transition: all var(--transition-fast);
            font-weight: 500;
            letter-spacing: 0.01em;
        }
        .hot-tag:hover {
            background: #DBEAFE;
            color: var(--primary-blue);
        }
        .search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            flex-shrink: 0;
            font-size: 1.1rem;
        }
        .search-btn:hover {
            background: #F1F5F9;
            color: var(--primary-blue);
        }

        .nav-channels {
            width: 100%;
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
            align-items: center;
            padding-top: 4px;
            border-top: 1px solid var(--border-light);
        }
        .nav-channels a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 6px;
            position: relative;
            white-space: nowrap;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
        }
        .nav-channels a:hover {
            color: var(--primary-blue);
            background: #F8FAFC;
        }
        .nav-channels a.active {
            color: var(--primary-blue);
            font-weight: 600;
        }
        .nav-channels a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary-blue);
            border-radius: 2px;
        }

        .hamburger-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            background: #F8FAFC;
            border: 1px solid var(--border-light);
            flex-shrink: 0;
        }
        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-body);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .hamburger-btn.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: #fff;
            z-index: 999;
            flex-direction: column;
            padding: 80px 24px 40px;
            overflow-y: auto;
            gap: 8px;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 16px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-heading);
            border-radius: 8px;
            transition: all var(--transition-fast);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: #EFF6FF;
            color: var(--primary-blue);
        }
        .mobile-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-body);
            background: #F8FAFC;
            border: 1px solid var(--border-light);
        }

        /* ========== HERO ========== */
        .hero-section {
            background: linear-gradient(170deg, #F8FAFC 0%, #EFF6FF 40%, #F1F5F9 100%);
            min-height: 560px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding: 60px 0;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
            border-radius: 0 0 0 80px;
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .hero-text h1 span {
            color: var(--primary-blue);
        }
        .hero-text .hero-desc {
            font-size: 1.1rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }
        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary-blue);
            color: #fff;
            border: 2px solid var(--primary-blue);
        }
        .btn-primary:hover {
            background: var(--primary-blue-hover);
            border-color: var(--primary-blue-hover);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary-blue);
            border: 2px solid var(--primary-blue);
        }
        .btn-outline:hover {
            background: #EFF6FF;
            border-color: var(--primary-blue-hover);
            color: var(--primary-blue-hover);
            transform: translateY(-1px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .hero-demo {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card-hover);
            border: 1px solid var(--border-light);
        }
        .hero-demo .demo-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 12px;
            font-weight: 600;
        }
        .demo-score-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 16px;
        }
        .demo-team {
            text-align: center;
            flex: 1;
        }
        .demo-team .team-name {
            font-weight: 700;
            color: var(--text-heading);
            font-size: 1rem;
        }
        .demo-team .team-score {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-blue);
            line-height: 1;
        }
        .demo-vs {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 600;
            flex-shrink: 0;
        }
        .demo-status {
            display: inline-block;
            padding: 4px 12px;
            background: #FEF3C7;
            color: #D97706;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .demo-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 8px;
            flex-wrap: wrap;
        }

        /* ========== SECTIONS ========== */
        section {
            padding: var(--section-gap) 0;
        }
        section.bg-alt {
            background: var(--bg-section-alt);
        }
        .section-label {
            display: inline-block;
            padding: 5px 14px;
            background: #EFF6FF;
            color: var(--primary-blue);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header.centered {
            text-align: center;
        }
        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* Card Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-grid.cols-2 {
            grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
        }
        .card-grid.cols-4 {
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        }
        .card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            position: relative;
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: #CBD5E1;
        }
        .card-img-top {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            margin: -24px -24px 20px -24px;
            width: calc(100% + 48px);
            background: #E2E8F0;
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .card .card-link {
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }
        .card .card-link:hover {
            gap: 8px;
        }
        .card .card-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            padding: 4px 10px;
            background: var(--accent-orange);
            color: #fff;
            border-radius: 20px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            z-index: 2;
        }
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: #EFF6FF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary-blue);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        /* Stats Bar */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 28px 16px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary-blue);
            line-height: 1;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 8px;
            font-weight: 500;
        }

        /* Steps */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            position: relative;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
        }
        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -16px;
            left: 24px;
            width: 36px;
            height: 36px;
            background: var(--primary-blue);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
        }
        .step-card h3 {
            margin-top: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-heading);
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
            line-height: 1.6;
        }

        /* Form */
        .form-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-card);
            max-width: 600px;
            margin: 0 auto;
        }
        .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .form-input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border: 1px solid var(--border-input);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            background: #FAFBFC;
            color: var(--text-heading);
        }
        .form-input:focus {
            background: #fff;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }
        .form-submit {
            padding: 12px 28px;
            background: var(--primary-blue);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .form-submit:hover {
            background: var(--primary-blue-hover);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }

        /* News List */
        .news-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            flex-wrap: wrap;
            transition: background var(--transition-fast);
        }
        .news-item:hover {
            background: #FAFBFC;
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: 6px;
        }
        .news-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
            min-width: 90px;
            font-weight: 500;
        }
        .news-body {
            flex: 1;
            min-width: 200px;
        }
        .news-title {
            font-weight: 700;
            color: var(--text-heading);
            font-size: 1rem;
            line-height: 1.4;
            display: block;
            margin-bottom: 4px;
        }
        .news-title:hover {
            color: var(--primary-blue);
        }
        .news-summary {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .news-readmore {
            flex-shrink: 0;
            align-self: center;
            padding: 7px 16px;
            border: 1px solid var(--primary-blue);
            border-radius: 20px;
            color: var(--primary-blue);
            font-weight: 600;
            font-size: 0.8rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .news-readmore:hover {
            background: #EFF6FF;
            color: var(--primary-blue-hover);
            border-color: var(--primary-blue-hover);
            text-decoration: none;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #CBD5E1;
        }
        .faq-question {
            width: 100%;
            padding: 18px 20px;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-heading);
            background: #F8FAFC;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition-fast);
            cursor: pointer;
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            background: #EFF6FF;
        }
        .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary-blue);
        }
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition-smooth);
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            padding: 0 20px 20px;
            max-height: 400px;
        }

        /* Comparison Table */
        .compare-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }
        .compare-table th,
        .compare-table td {
            padding: 16px 20px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
        }
        .compare-table th {
            background: #F8FAFC;
            font-weight: 700;
            color: var(--text-heading);
            font-size: 0.95rem;
        }
        .compare-table td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--text-heading);
        }
        .compare-table .highlight-col {
            background: #EFF6FF;
            font-weight: 700;
            color: var(--primary-blue);
        }
        .compare-table .check {
            color: #16A34A;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .compare-table .cross {
            color: #DC2626;
            font-weight: 700;
        }

        /* Guarantee Icons */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            text-align: center;
        }
        .guarantee-item {
            padding: 24px 16px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
        }
        .guarantee-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .guarantee-icon {
            font-size: 2.2rem;
            margin-bottom: 10px;
            display: block;
        }
        .guarantee-item h4 {
            font-weight: 700;
            color: var(--text-heading);
            font-size: 0.95rem;
            margin-bottom: 4px;
        }
        .guarantee-item p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Reviews */
        .review-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
        }
        .review-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .review-stars {
            color: #F59E0B;
            font-size: 1rem;
            letter-spacing: 2px;
            margin-bottom: 8px;
        }
        .review-text {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 12px;
            font-style: italic;
        }
        .review-author {
            font-weight: 600;
            color: var(--text-heading);
            font-size: 0.85rem;
        }

        /* Progress */
        .progress-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 600px;
            margin: 0 auto;
        }
        .progress-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
        }
        .progress-check {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 2px solid #CBD5E1;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: 700;
            color: #CBD5E1;
            transition: all var(--transition-fast);
        }
        .progress-item.done .progress-check {
            background: #16A34A;
            border-color: #16A34A;
            color: #fff;
        }
        .progress-item.done .progress-label {
            color: #16A34A;
        }
        .progress-label {
            font-weight: 600;
            color: var(--text-heading);
            font-size: 0.95rem;
            flex: 1;
        }
        .progress-reward {
            font-size: 0.8rem;
            color: var(--accent-orange);
            font-weight: 600;
            background: #FFF7ED;
            padding: 4px 10px;
            border-radius: 20px;
            white-space: nowrap;
        }

        /* Privacy */
        .privacy-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-card);
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }
        .privacy-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
        }
        .privacy-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--text-footer);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-col h4 {
            color: #E2E8F0;
            font-weight: 700;
            margin-bottom: 14px;
            font-size: 0.95rem;
            letter-spacing: 0.01em;
        }
        .footer-col p {
            line-height: 1.7;
            font-size: 0.85rem;
        }
        .footer-col a {
            display: block;
            color: var(--text-footer);
            padding: 4px 0;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.25);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
        }
        .footer-bottom a {
            color: var(--text-footer);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom .sep {
            color: rgba(148, 163, 184, 0.4);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-section::before {
                width: 100%;
                opacity: 0.08;
                border-radius: 0;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .hero-demo {
                max-width: 480px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-title {
                font-size: 1.6rem;
            }
            .card-grid.cols-2 {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .hot-tags {
                display: none;
            }
            .nav-channels {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .search-btn {
                margin-left: auto;
            }
            .hero-section {
                min-height: auto;
                padding: 40px 0;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-text .hero-desc {
                font-size: 0.95rem;
            }
            .hero-demo {
                padding: 20px;
            }
            .demo-team .team-score {
                font-size: 2rem;
            }
            section {
                padding: var(--section-gap-sm) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-number {
                font-size: 2rem;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-readmore {
                align-self: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .form-row {
                flex-direction: column;
            }
            .form-input {
                min-width: 100%;
            }
            .compare-table th,
            .compare-table td {
                padding: 10px 12px;
                font-size: 0.8rem;
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-row {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .card-grid.cols-4 {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .container {
                padding: 0 16px;
            }
            .form-card {
                padding: 24px 16px;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .compare-table-wrap {
                margin: 0 -16px;
            }
        }

/* roulang page: category2 */
:root {
            --primary-blue: #2563EB;
            --primary-blue-hover: #1D4ED8;
            --primary-blue-light: #EFF6FF;
            --bg-page: #F8FAFC;
            --bg-section-alt: #F1F5F9;
            --card-bg: #FFFFFF;
            --border-light: #E2E8F0;
            --border-input: #CBD5E1;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-footer: #94A3B8;
            --footer-bg: #1E293B;
            --accent-orange: #F97316;
            --accent-orange-hover: #EA580C;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-nav: 0 1px 4px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-lg: 120px;
            --section-gap-sm: 60px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-page);
            color: var(--text-body);
            line-height: 1.7;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary-blue-hover);
        }

        a:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

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

        button:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
            font-size: 1rem;
        }

        input:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.6;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header.centered {
            text-align: center;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid transparent;
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            border-bottom-color: var(--border-light);
            box-shadow: var(--shadow-nav);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 0;
            gap: 12px;
        }

        .brand-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-link:hover {
            color: var(--primary-blue);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary-blue);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .hot-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hot-tag {
            display: inline-block;
            padding: 5px 12px;
            background: #F1F5F9;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-body);
            white-space: nowrap;
            transition: all var(--transition-fast);
            font-weight: 500;
            letter-spacing: 0.01em;
        }

        .hot-tag:hover {
            background: #DBEAFE;
            color: var(--primary-blue);
        }

        .search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            flex-shrink: 0;
            font-size: 1.1rem;
        }

        .search-btn:hover {
            background: #F1F5F9;
            color: var(--primary-blue);
        }

        .nav-channels {
            width: 100%;
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
            align-items: center;
            padding-top: 10px;
            border-top: 1px solid var(--border-light);
        }

        .nav-channels a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            border-bottom: 2px solid transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
            border-radius: 4px 4px 0 0;
        }

        .nav-channels a:hover {
            color: var(--primary-blue);
            background: #F8FAFC;
        }

        .nav-channels a.active {
            color: var(--primary-blue);
            border-bottom-color: var(--primary-blue);
            font-weight: 600;
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-heading);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* ========== HERO BENTO ========== */
        .hero-bento {
            padding: 60px 0 50px;
            background: linear-gradient(180deg, #F8FAFC 0%, #F1F5F9 100%);
        }

        .hero-bento .container {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
            align-items: stretch;
        }

        .hero-bento-main {
            grid-row: 1 / 3;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
            min-height: 380px;
        }

        .hero-bento-main::after {
            content: '';
            position: absolute;
            right: -30px;
            bottom: -30px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-bento-main .hero-badge {
            display: inline-block;
            padding: 6px 14px;
            background: var(--accent-orange);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
            width: fit-content;
        }

        .hero-bento-main h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            position: relative;
            z-index: 1;
        }

        .hero-bento-main .hero-desc {
            font-size: 1.08rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 520px;
            position: relative;
            z-index: 1;
        }

        .hero-bento-cta-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-primary {
            display: inline-block;
            padding: 13px 28px;
            background: var(--primary-blue);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-align: center;
            border: none;
            cursor: pointer;
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            background: var(--primary-blue-hover);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-outline {
            display: inline-block;
            padding: 13px 28px;
            background: transparent;
            color: var(--primary-blue);
            border: 1.5px solid var(--primary-blue);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-align: center;
            cursor: pointer;
            letter-spacing: 0.01em;
        }

        .btn-outline:hover {
            background: var(--primary-blue-light);
            color: var(--primary-blue-hover);
            border-color: var(--primary-blue-hover);
        }

        .hero-bento-mini {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 28px;
            display: flex;
            align-items: center;
            gap: 18px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            cursor: default;
        }

        .hero-bento-mini:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .hero-bento-mini .mini-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: var(--primary-blue-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary-blue);
            flex-shrink: 0;
        }

        .hero-bento-mini .mini-info h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 3px;
        }

        .hero-bento-mini .mini-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.4;
        }

        .hero-bento-cta-bar {
            grid-column: 1 / -1;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
        }

        .hero-bento-cta-bar .cta-bar-text {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-heading);
        }

        .hero-bento-cta-bar .cta-bar-highlight {
            color: var(--accent-orange);
            font-weight: 700;
        }

        /* ========== SECTION SPACING ========== */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-alt {
            background: var(--bg-section-alt);
            padding: var(--section-gap) 0;
        }

        .section-lg {
            padding: var(--section-gap-lg) 0;
        }

        /* ========== CARDS GRID ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .cards-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }

        .cards-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        .card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
        }

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

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: #E2E8F0;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        .card-body {
            padding: 22px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body h3 {
            font-size: 1.18rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }

        .card-tag {
            display: inline-block;
            padding: 4px 10px;
            background: #F1F5F9;
            border-radius: 4px;
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 10px;
            width: fit-content;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary-blue);
            margin-top: 12px;
            transition: all var(--transition-fast);
        }

        .card-link:hover {
            gap: 10px;
            color: var(--primary-blue-hover);
        }

        .card-link::after {
            content: '→';
            font-size: 1rem;
        }

        /* ========== LIST STYLE ========== */
        .news-list {
            list-style: none;
            display: flex;
            flex-direction: column;
        }

        .news-list li {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            flex-wrap: wrap;
        }

        .news-list li:last-child {
            border-bottom: none;
        }

        .news-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
            min-width: 90px;
            font-weight: 500;
        }

        .news-content {
            flex: 1;
            min-width: 220px;
        }

        .news-content h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .news-content h4 a {
            color: var(--text-heading);
            transition: color var(--transition-fast);
        }

        .news-content h4 a:hover {
            color: var(--primary-blue);
        }

        .news-content .news-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .news-readmore {
            flex-shrink: 0;
            align-self: center;
            padding: 8px 16px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--primary-blue);
            border: 1px solid var(--primary-blue);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .news-readmore:hover {
            background: var(--primary-blue-light);
            color: var(--primary-blue-hover);
        }

        /* ========== FEATURE BLOCK ========== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .feature-block.reverse {
            direction: rtl;
        }

        .feature-block.reverse>* {
            direction: ltr;
        }

        .feature-img-wrap {
            background: #E2E8F0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .feature-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .feature-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .feature-text p {
            font-size: 0.98rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .feature-text .feature-highlights {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 16px;
        }

        .feature-text .feature-highlights li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.93rem;
            color: var(--text-body);
        }

        .feature-text .feature-highlights li::before {
            content: '';
            width: 8px;
            height: 8px;
            background: var(--primary-blue);
            border-radius: 50%;
            flex-shrink: 0;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
        }

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

        .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary-blue);
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-heading);
            background: #F8FAFC;
            transition: all var(--transition-fast);
            gap: 16px;
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            background: #EFF6FF;
            color: var(--primary-blue);
        }

        .faq-arrow {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            color: var(--text-muted);
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary-blue);
        }

        .faq-answer {
            padding: 0 22px;
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition-smooth);
            font-size: 0.93rem;
            color: var(--text-body);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            padding: 0 22px 18px;
            max-height: 400px;
        }

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

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }

        .cta-section p {
            font-size: 1rem;
            margin-bottom: 28px;
            opacity: 0.9;
            line-height: 1.6;
        }

        .cta-section .btn-primary {
            background: #fff;
            color: var(--primary-blue);
            font-weight: 700;
        }

        .cta-section .btn-primary:hover {
            background: #F1F5F9;
            box-shadow: 0 4px 20px rgba(255, 255, 255, 0.25);
            color: var(--primary-blue-hover);
        }

        .cta-section .btn-outline-white {
            display: inline-block;
            padding: 13px 28px;
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            margin-left: 12px;
        }

        .cta-section .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--text-footer);
            padding: 50px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .footer-col p {
            font-size: 0.88rem;
            line-height: 1.6;
            margin-bottom: 6px;
        }

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

        .footer-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.8rem;
            color: #64748B;
        }

        .footer-bottom a {
            color: #64748B;
            font-size: 0.8rem;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-bottom .sep {
            margin: 0 6px;
            color: #475569;
        }

        /* ========== TABLE STYLE ========== */
        .data-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--card-bg);
            font-size: 0.9rem;
        }

        .data-table thead {
            background: #F8FAFC;
        }

        .data-table th {
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
            color: var(--text-heading);
            font-size: 0.85rem;
            border-bottom: 2px solid var(--border-light);
            white-space: nowrap;
        }

        .data-table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-body);
        }

        .data-table tbody tr:hover {
            background: #F8FAFC;
        }

        .data-table .rank-num {
            font-weight: 700;
            color: var(--primary-blue);
            font-size: 1rem;
        }

        .data-table .team-name {
            font-weight: 600;
            color: var(--text-heading);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-bento .container {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }

            .hero-bento-main {
                grid-row: auto;
                min-height: auto;
                padding: 36px 28px;
            }

            .hero-bento-main h1 {
                font-size: 2rem;
            }

            .hero-bento-cta-bar {
                grid-column: auto;
            }

            .feature-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .feature-block.reverse {
                direction: ltr;
            }

            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }

            .cards-grid.cols-3,
            .cards-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .section-title {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-gap-sm) 0;
            }

            .section-alt {
                padding: var(--section-gap-sm) 0;
            }

            .section-lg {
                padding: var(--section-gap-sm) 0;
            }

            .container {
                padding: 0 16px;
            }

            .hero-bento {
                padding: 30px 0;
            }

            .hero-bento-main {
                padding: 28px 20px;
            }

            .hero-bento-main h1 {
                font-size: 1.6rem;
            }

            .hero-bento-main .hero-desc {
                font-size: 0.95rem;
            }

            .hero-bento-mini {
                padding: 20px;
            }

            .hero-bento-cta-bar {
                flex-direction: column;
                text-align: center;
                padding: 18px 20px;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .cards-grid,
            .cards-grid.cols-3,
            .cards-grid.cols-4 {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-number {
                font-size: 1.6rem;
            }

            .news-list li {
                flex-direction: column;
                gap: 8px;
                padding: 14px 0;
            }

            .news-readmore {
                align-self: flex-start;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .nav-channels {
                gap: 2px;
                overflow-x: auto;
                flex-wrap: nowrap;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
            }

            .nav-channels a {
                padding: 8px 12px;
                font-size: 0.82rem;
            }

            .hot-tags {
                display: none;
            }

            .header-inner {
                padding: 10px 0;
            }

            .cta-section h2 {
                font-size: 1.4rem;
            }

            .cta-section .btn-outline-white {
                margin-left: 0;
                margin-top: 10px;
            }

            .data-table {
                font-size: 0.78rem;
            }

            .data-table th,
            .data-table td {
                padding: 8px 10px;
            }

            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }

            .faq-answer {
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            .hero-bento-main h1 {
                font-size: 1.35rem;
            }

            .btn-primary,
            .btn-outline {
                padding: 11px 20px;
                font-size: 0.88rem;
                width: 100%;
                text-align: center;
            }

            .hero-bento-cta-row {
                flex-direction: column;
            }

            .hero-bento-mini {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }

            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-card {
                padding: 18px 14px;
            }

            .stat-number {
                font-size: 1.3rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .logo-link {
                font-size: 1.1rem;
            }

            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary-blue: #2563EB;
            --primary-blue-hover: #1D4ED8;
            --primary-blue-light: #EFF6FF;
            --bg-page: #F8FAFC;
            --bg-section-alt: #F1F5F9;
            --card-bg: #FFFFFF;
            --border-light: #E2E8F0;
            --border-input: #CBD5E1;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-footer: #94A3B8;
            --footer-bg: #1E293B;
            --accent-orange: #F97316;
            --accent-orange-hover: #EA580C;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-nav: 0 1px 4px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-lg: 120px;
            --section-gap-sm: 60px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-page);
            color: var(--text-body);
            line-height: 1.7;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary-blue-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 4px;
        }
        input {
            font-family: inherit;
            font-size: 1rem;
        }
        input:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid transparent;
            transition: all var(--transition-smooth);
        }
        .site-header.scrolled {
            border-bottom-color: var(--border-light);
            box-shadow: var(--shadow-nav);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 0;
            gap: 12px;
        }
        .brand-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-link:hover {
            color: var(--primary-blue);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary-blue);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .hot-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .hot-tag {
            display: inline-block;
            padding: 5px 12px;
            background: #F1F5F9;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-body);
            white-space: nowrap;
            transition: all var(--transition-fast);
            font-weight: 500;
            letter-spacing: 0.01em;
        }
        .hot-tag:hover {
            background: #DBEAFE;
            color: var(--primary-blue);
        }
        .search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            flex-shrink: 0;
            font-size: 1.1rem;
        }
        .search-btn:hover {
            background: #F1F5F9;
            color: var(--primary-blue);
        }
        .nav-channels {
            width: 100%;
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
            align-items: center;
            padding-top: 4px;
            border-top: 1px solid var(--border-light);
        }
        .nav-channels a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 6px;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .nav-channels a:hover {
            color: var(--primary-blue);
            background: #F8FAFC;
        }
        .nav-channels a.active {
            color: var(--primary-blue);
            font-weight: 600;
        }
        .nav-channels a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary-blue);
            border-radius: 1px;
        }
        .hamburger-btn {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 8px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            flex-shrink: 0;
        }
        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-heading);
            border-radius: 1px;
            transition: all var(--transition-fast);
        }
        /* ========== SECTION BASE ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 680px;
            line-height: 1.6;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header.centered {
            text-align: center;
        }
        .section-header.centered .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        /* ========== HERO (分类页小尺寸) ========== */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, #F0F4FF 0%, #E8F0FE 40%, #F8FAFC 100%);
            padding: 60px 0;
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .category-hero .container {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        .category-hero-content {
            flex: 1 1 420px;
            min-width: 0;
        }
        .category-hero-badge {
            display: inline-block;
            padding: 6px 14px;
            background: var(--primary-blue-light);
            color: var(--primary-blue);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .category-hero h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.2;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .category-hero-desc {
            font-size: 1.08rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 520px;
        }
        .category-hero-visual {
            flex: 0 0 340px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .category-hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card-hover);
            max-width: 100%;
            height: auto;
        }
        /* 拼团转化组件 */
        .group-watch-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-card);
            display: inline-flex;
            flex-direction: column;
            gap: 16px;
            min-width: 260px;
            margin-top: 8px;
        }
        .group-watch-progress {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-body);
            font-weight: 500;
        }
        .group-avatars {
            display: flex;
            gap: -6px;
        }
        .group-avatar-dot {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #DBEAFE;
            border: 2px solid #fff;
            margin-left: -8px;
            font-size: 0.65rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-blue);
            font-weight: 700;
        }
        .group-avatar-dot:first-child {
            margin-left: 0;
        }
        .group-count-highlight {
            color: var(--accent-orange);
            font-weight: 700;
            font-size: 1.1rem;
        }
        .group-watch-btns {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary-blue);
            color: #fff;
            border: 2px solid var(--primary-blue);
        }
        .btn-primary:hover {
            background: var(--primary-blue-hover);
            border-color: var(--primary-blue-hover);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary-blue);
            border: 2px solid var(--primary-blue);
        }
        .btn-outline:hover {
            background: var(--primary-blue-light);
            color: var(--primary-blue-hover);
        }
        .btn-accent {
            background: var(--accent-orange);
            color: #fff;
            border: 2px solid var(--accent-orange);
        }
        .btn-accent:hover {
            background: var(--accent-orange-hover);
            border-color: var(--accent-orange-hover);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
            color: #fff;
        }
        /* ========== CARDS ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        .card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            background: #E2E8F0;
        }
        .card-body {
            padding: 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .card-tag {
            display: inline-block;
            padding: 3px 10px;
            background: #FEF3C7;
            color: #B45309;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            align-self: flex-start;
            letter-spacing: 0.02em;
        }
        .card-tag.blue-tag {
            background: #DBEAFE;
            color: #1E40AF;
        }
        .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.4;
        }
        .card-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .card-link {
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }
        .card-link:hover {
            gap: 8px;
        }
        /* ========== NEWS LIST ========== */
        .news-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            flex-wrap: wrap;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-date {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
            min-width: 90px;
            padding-top: 2px;
        }
        .news-body {
            flex: 1;
            min-width: 200px;
        }
        .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .news-title a {
            color: var(--text-heading);
        }
        .news-title a:hover {
            color: var(--primary-blue);
        }
        .news-summary {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .news-readmore {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-blue);
            display: inline-flex;
            align-items: center;
            gap: 3px;
            transition: gap var(--transition-fast);
        }
        .news-readmore:hover {
            gap: 7px;
            color: var(--primary-blue-hover);
        }
        /* ========== FEATURE LIST ========== */
        .feature-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            list-style: none;
        }
        .feature-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 20px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }
        .feature-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-1px);
        }
        .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
        }
        .feature-icon.blue-bg {
            background: #DBEAFE;
            color: #2563EB;
        }
        .feature-icon.orange-bg {
            background: #FFF7ED;
            color: #F97316;
        }
        .feature-info h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 4px;
        }
        .feature-info p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        /* ========== STATS TABLE ========== */
        .stats-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            background: #fff;
        }
        .stats-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 600px;
        }
        .stats-table th {
            background: #F8FAFC;
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
            color: var(--text-heading);
            border-bottom: 2px solid var(--border-light);
            font-size: 0.85rem;
            white-space: nowrap;
        }
        .stats-table td {
            padding: 12px 16px;
            border-bottom: 1px solid #F1F5F9;
            color: var(--text-body);
            white-space: nowrap;
        }
        .stats-table tr:hover td {
            background: #FAFBFC;
        }
        .rank-badge {
            display: inline-flex;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.8rem;
            background: #F1F5F9;
            color: var(--text-muted);
        }
        .rank-badge.top3 {
            background: #FEF3C7;
            color: #B45309;
        }
        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-fast);
        }
        .faq-question {
            width: 100%;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-heading);
            background: #F8FAFC;
            cursor: pointer;
            transition: background var(--transition-fast);
            gap: 12px;
            text-align: left;
        }
        .faq-question:hover {
            background: #EFF6FF;
        }
        .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary-blue);
        }
        .faq-answer {
            padding: 0 22px;
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition-smooth);
            font-size: 0.92rem;
            color: var(--text-body);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            padding: 18px 22px;
            max-height: 400px;
        }
        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary-blue);
            color: #fff;
            padding: 60px 0;
            text-align: center;
            border-radius: 0;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }
        .cta-section .btn {
            font-size: 1rem;
            padding: 14px 32px;
        }
        .cta-section .btn-outline {
            border-color: #fff;
            color: #fff;
        }
        .cta-section .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
        }
        .cta-section .btn-white {
            background: #fff;
            color: var(--primary-blue);
            border: 2px solid #fff;
            font-weight: 700;
        }
        .cta-section .btn-white:hover {
            background: #F0F4FF;
            border-color: #F0F4FF;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            color: var(--primary-blue-hover);
        }
        .cta-btns {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--text-footer);
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .footer-col p {
            line-height: 1.7;
            font-size: 0.88rem;
        }
        .footer-col a {
            display: block;
            color: var(--text-footer);
            padding: 4px 0;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
        }
        .footer-bottom a {
            color: var(--text-footer);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .sep {
            color: rgba(148, 163, 184, 0.4);
            margin: 0 4px;
        }
        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .card-grid.cols-3,
            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-list {
                grid-template-columns: 1fr 1fr;
            }
            .category-hero .container {
                gap: 32px;
            }
            .category-hero-visual {
                flex: 0 0 260px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--section-gap-sm) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .category-hero {
                padding: 40px 0;
                min-height: auto;
            }
            .category-hero .container {
                flex-direction: column;
                gap: 24px;
            }
            .category-hero-visual {
                flex: 0 0 auto;
                width: 100%;
                max-width: 320px;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero-desc {
                font-size: 0.95rem;
            }
            .card-grid.cols-3,
            .card-grid.cols-4 {
                grid-template-columns: 1fr;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-date {
                min-width: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .hamburger-btn {
                display: flex;
            }
            .nav-channels {
                display: none;
                flex-direction: column;
                gap: 2px;
                padding-top: 8px;
                border-top: 1px solid var(--border-light);
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-channels a {
                padding: 10px 16px;
                width: 100%;
            }
            .hot-tags {
                display: none;
            }
            .hot-tags.mobile-show {
                display: flex;
                padding: 8px 0;
                flex-wrap: wrap;
            }
            .group-watch-card {
                width: 100%;
                min-width: auto;
            }
            .group-watch-btns {
                flex-direction: column;
                width: 100%;
            }
            .group-watch-btns .btn {
                width: 100%;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .stats-table-wrap {
                font-size: 0.78rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .card-body {
                padding: 14px 16px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 0.88rem;
            }
            .group-watch-card {
                padding: 16px 18px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-item.open .faq-answer {
                padding: 14px 16px;
            }
        }

/* roulang page: category3 */
:root {
            --primary-blue: #2563EB;
            --primary-blue-hover: #1D4ED8;
            --primary-blue-light: #EFF6FF;
            --bg-page: #F8FAFC;
            --bg-section-alt: #F1F5F9;
            --card-bg: #FFFFFF;
            --border-light: #E2E8F0;
            --border-input: #CBD5E1;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-footer: #94A3B8;
            --footer-bg: #1E293B;
            --accent-orange: #F97316;
            --accent-orange-hover: #EA580C;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-nav: 0 1px 4px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-lg: 120px;
            --section-gap-sm: 60px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-page);
            color: var(--text-body);
            line-height: 1.7;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary-blue-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 4px;
        }
        input {
            font-family: inherit;
            font-size: 1rem;
        }
        input:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid transparent;
            transition: all var(--transition-smooth);
        }
        .site-header.scrolled {
            border-bottom-color: var(--border-light);
            box-shadow: var(--shadow-nav);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 0;
            gap: 12px;
        }
        .brand-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
            text-decoration: none;
        }
        .logo-link:hover {
            color: var(--primary-blue);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary-blue);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .hot-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .hot-tag {
            display: inline-block;
            padding: 5px 12px;
            background: #F1F5F9;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-body);
            white-space: nowrap;
            transition: all var(--transition-fast);
            font-weight: 500;
            letter-spacing: 0.01em;
            text-decoration: none;
        }
        .hot-tag:hover {
            background: #DBEAFE;
            color: var(--primary-blue);
        }
        .search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            flex-shrink: 0;
            font-size: 1.1rem;
            cursor: pointer;
        }
        .search-btn:hover {
            background: #F1F5F9;
            color: var(--primary-blue);
        }
        .nav-channels {
            width: 100%;
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
            align-items: center;
            padding-top: 4px;
            border-top: 1px solid var(--border-light);
        }
        .nav-channels a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 6px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
            position: relative;
        }
        .nav-channels a:hover {
            color: var(--primary-blue);
            background: var(--primary-blue-light);
        }
        .nav-channels a.active {
            color: var(--primary-blue);
            font-weight: 600;
        }
        .nav-channels a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary-blue);
            border-radius: 1px;
        }

        /* 汉堡菜单 */
        .hamburger-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            flex-shrink: 0;
            z-index: 1001;
            background: transparent;
            border: none;
        }
        .hamburger-btn span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-heading);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .hamburger-btn.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-fast);
        }
        .mobile-menu-overlay.show {
            opacity: 1;
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100%;
            background: #fff;
            z-index: 1000;
            padding: 80px 24px 24px;
            overflow-y: auto;
            transition: right var(--transition-smooth);
            box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
        }
        .mobile-menu-panel.open {
            right: 0;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            margin-bottom: 4px;
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        .mobile-menu-panel a:hover,
        .mobile-menu-panel a.active {
            background: var(--primary-blue-light);
            color: var(--primary-blue);
        }
        .mobile-menu-panel .hot-tags-mobile {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border-light);
        }

        /* ========== SECTION TITLES ========== */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.6;
            max-width: 700px;
        }
        .section-header {
            margin-bottom: 36px;
        }
        .section-header.centered {
            text-align: center;
        }
        .section-header.centered .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== HERO (分类页小尺寸) ========== */
        .category-hero {
            background: linear-gradient(135deg, #F0F4FF 0%, #F8FAFC 40%, #F1F5F9 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.04);
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 10%;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(249, 115, 22, 0.04);
            pointer-events: none;
        }
        .hero-inner {
            display: flex;
            align-items: center;
            gap: 48px;
            position: relative;
            z-index: 1;
        }
        .hero-text {
            flex: 1;
            min-width: 0;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 14px;
            background: var(--primary-blue-light);
            color: var(--primary-blue);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .hero-text h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.2;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .hero-text .hero-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 24px;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: var(--primary-blue);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-decoration: none;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--primary-blue-hover);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: transparent;
            color: var(--primary-blue);
            border: 1px solid var(--primary-blue);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: var(--primary-blue-light);
            color: var(--primary-blue-hover);
            border-color: var(--primary-blue-hover);
        }
        .hero-visual {
            flex-shrink: 0;
            width: 340px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }
        .countdown-ring {
            position: relative;
            width: 160px;
            height: 160px;
        }
        .countdown-ring svg {
            transform: rotate(-90deg);
            width: 160px;
            height: 160px;
        }
        .countdown-ring .bg-circle {
            fill: none;
            stroke: #E2E8F0;
            stroke-width: 8;
        }
        .countdown-ring .progress-circle {
            fill: none;
            stroke: var(--primary-blue);
            stroke-width: 8;
            stroke-linecap: round;
            transition: stroke-dashoffset 0.5s ease;
        }
        .countdown-inner {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
        }
        .countdown-inner .days-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-heading);
            line-height: 1;
        }
        .countdown-inner .days-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .countdown-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
            text-align: center;
        }
        .match-dots {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .match-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #CBD5E1;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .match-dot.active {
            background: var(--primary-blue);
            width: 28px;
            border-radius: 20px;
        }
        .match-dot:hover {
            background: var(--primary-blue);
            opacity: 0.7;
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            background: #E2E8F0;
        }
        .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-tag {
            display: inline-block;
            padding: 3px 10px;
            background: var(--primary-blue-light);
            color: var(--primary-blue);
            border-radius: 4px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
            letter-spacing: 0.02em;
        }
        .card-tag.orange {
            background: #FFF7ED;
            color: var(--accent-orange);
        }
        .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.4;
            letter-spacing: -0.01em;
        }
        .card-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary-blue);
            margin-top: 12px;
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .card-link:hover {
            gap: 8px;
            color: var(--primary-blue-hover);
        }
        .card-link::after {
            content: '→';
            font-size: 1rem;
            transition: transform var(--transition-fast);
        }
        .card-link:hover::after {
            transform: translateX(3px);
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 24px;
        }

        /* ========== LIST STYLES ========== */
        .news-list {
            list-style: none;
            display: flex;
            flex-direction: column;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            flex-wrap: wrap;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-date {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
            min-width: 90px;
            padding-top: 2px;
        }
        .news-content {
            flex: 1;
            min-width: 200px;
        }
        .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 4px;
            line-height: 1.4;
            display: block;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .news-title:hover {
            color: var(--primary-blue);
        }
        .news-summary {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .news-readmore {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-blue);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
        }
        .news-readmore:hover {
            color: var(--primary-blue-hover);
            gap: 8px;
        }
        .news-readmore::after {
            content: '→';
            transition: transform var(--transition-fast);
        }
        .news-readmore:hover::after {
            transform: translateX(3px);
        }

        /* ========== FEATURE BLOCK ========== */
        .feature-block {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }
        .feature-block.reverse {
            flex-direction: row-reverse;
        }
        .feature-text {
            flex: 1;
            min-width: 280px;
        }
        .feature-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }
        .feature-text p {
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .feature-image {
            flex: 1;
            min-width: 280px;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #E2E8F0;
            aspect-ratio: 16 / 10;
        }
        .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }
        .stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
        }
        .stat-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-blue);
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--card-bg);
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #CBD5E1;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            background: #F8FAFC;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-heading);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            border: none;
            transition: all var(--transition-fast);
            gap: 12px;
        }
        .faq-question:hover {
            background: #EFF6FF;
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary-blue);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            background: #fff;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 16px 20px;
        }
        .faq-answer p {
            color: var(--text-muted);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary-blue);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
            letter-spacing: -0.01em;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }
        .cta-section .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: #fff;
            color: var(--primary-blue);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-decoration: none;
            position: relative;
            z-index: 1;
            border: none;
            cursor: pointer;
        }
        .cta-section .btn-white:hover {
            background: #F0F4FF;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--text-footer);
            padding: 48px 0 24px;
            margin-top: var(--section-gap);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: #E2E8F0;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .footer-col p {
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .footer-col a {
            display: block;
            color: var(--text-footer);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .footer-col a:hover {
            color: #CBD5E1;
        }
        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: 0.8rem;
            justify-content: center;
            align-items: center;
            text-align: center;
        }
        .footer-bottom .sep {
            color: rgba(148, 163, 184, 0.4);
            margin: 0 2px;
        }
        .footer-bottom a {
            color: var(--text-footer);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: #CBD5E1;
        }

        /* ========== SECTION SPACING ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: var(--section-gap-sm) 0;
        }
        .section-lg {
            padding: var(--section-gap-lg) 0;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-block {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px;
            box-shadow: var(--shadow-card);
            line-height: 1.8;
        }
        .brand-intro-block h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .brand-intro-block p {
            color: var(--text-body);
            line-height: 1.8;
            font-size: 0.95rem;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                flex-direction: column;
                gap: 32px;
            }
            .hero-visual {
                width: 100%;
                flex-direction: row;
                justify-content: center;
                flex-wrap: wrap;
            }
            .countdown-ring {
                width: 130px;
                height: 130px;
            }
            .countdown-ring svg {
                width: 130px;
                height: 130px;
            }
            .feature-block {
                flex-direction: column;
                gap: 28px;
            }
            .feature-block.reverse {
                flex-direction: column;
            }
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .hero-text h1 {
                font-size: 2rem;
            }
            .section {
                padding: var(--section-gap-sm) 0;
            }
            .section-alt {
                padding: var(--section-gap-sm) 0;
            }
            .section-lg {
                padding: var(--section-gap) 0;
            }
        }

        @media (max-width: 768px) {
            .hot-tags {
                display: none;
            }
            .search-btn {
                margin-left: auto;
            }
            .hamburger-btn {
                display: flex;
            }
            .nav-channels {
                display: none;
            }
            .mobile-menu-overlay {
                display: block;
                pointer-events: none;
            }
            .mobile-menu-overlay.show {
                pointer-events: auto;
            }
            .mobile-menu-panel {
                display: block;
            }
            .hero-text h1 {
                font-size: 1.7rem;
            }
            .hero-text .hero-desc {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
                margin-bottom: 28px;
            }
            .grid-3 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-date {
                min-width: auto;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h3 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
            .container {
                padding: 0 16px;
            }
            .category-hero {
                padding: 40px 0 36px;
            }
            .hero-visual {
                width: 100%;
            }
            .countdown-ring {
                width: 110px;
                height: 110px;
            }
            .countdown-ring svg {
                width: 110px;
                height: 110px;
            }
            .countdown-inner .days-num {
                font-size: 1.6rem;
            }
            .brand-intro-block {
                padding: 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .card-body {
                padding: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
            }
            .btn-primary,
            .btn-outline {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
            .hero-actions {
                flex-direction: column;
                gap: 8px;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category4 */
:root {
            --primary-blue: #2563EB;
            --primary-blue-hover: #1D4ED8;
            --primary-blue-light: #EFF6FF;
            --bg-page: #F8FAFC;
            --bg-section-alt: #F1F5F9;
            --card-bg: #FFFFFF;
            --border-light: #E2E8F0;
            --border-input: #CBD5E1;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-footer: #94A3B8;
            --footer-bg: #1E293B;
            --accent-orange: #F97316;
            --accent-orange-hover: #EA580C;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-nav: 0 1px 4px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-lg: 120px;
            --section-gap-sm: 60px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-page);
            color: var(--text-body);
            line-height: 1.7;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary-blue-hover);
        }

        a:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

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

        button:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
            font-size: 1rem;
        }

        input:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid transparent;
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            border-bottom-color: var(--border-light);
            box-shadow: var(--shadow-nav);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 0;
            gap: 12px;
        }

        .brand-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-link:hover {
            color: var(--primary-blue);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary-blue);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .hot-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hot-tag {
            display: inline-block;
            padding: 5px 12px;
            background: #F1F5F9;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-body);
            white-space: nowrap;
            transition: all var(--transition-fast);
            font-weight: 500;
            letter-spacing: 0.01em;
        }

        .hot-tag:hover {
            background: #DBEAFE;
            color: var(--primary-blue);
        }

        .search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            flex-shrink: 0;
            font-size: 1.1rem;
        }

        .search-btn:hover {
            background: #F1F5F9;
            color: var(--primary-blue);
        }

        .nav-channels {
            width: 100%;
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
            align-items: center;
            padding-top: 4px;
            border-top: 1px solid var(--border-light);
        }

        .nav-channels a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 6px;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .nav-channels a:hover {
            color: var(--primary-blue);
            background: #F8FAFC;
        }

        .nav-channels a.active {
            color: var(--primary-blue);
            font-weight: 600;
        }

        .nav-channels a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary-blue);
            border-radius: 1px;
        }

        .mobile-menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            gap: 5px;
            justify-content: center;
            align-items: center;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .mobile-menu-toggle:hover {
            background: #F1F5F9;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-heading);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

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

        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

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

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #F8FAFC 0%, #EFF6FF 50%, #F1F5F9 100%);
            padding: 72px 0;
            overflow: hidden;
            min-height: 480px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--text-body);
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
        }

        .hero-badge:hover {
            border-color: var(--primary-blue);
            color: var(--primary-blue);
            background: var(--primary-blue-light);
            transform: translateY(-1px);
            box-shadow: var(--shadow-card);
        }

        .hero-badge i {
            font-size: 0.85rem;
            color: var(--primary-blue);
        }

        .hero-title {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .hero-title span {
            color: var(--primary-blue);
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: var(--primary-blue);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-blue-hover);
            color: #fff;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
            transform: translateY(-1px);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: transparent;
            color: var(--primary-blue);
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--primary-blue);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: var(--primary-blue-light);
            color: var(--primary-blue-hover);
            border-color: var(--primary-blue-hover);
        }

        .btn-outline:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-visual img {
            width: 100%;
            max-width: 480px;
            border-radius: var(--radius-lg);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            object-fit: cover;
            aspect-ratio: 4/3;
            background: #E2E8F0;
        }

        .hero-visual .visual-badge {
            position: absolute;
            bottom: 20px;
            right: -12px;
            background: #fff;
            border-radius: var(--radius-md);
            padding: 14px 18px;
            box-shadow: var(--shadow-card-hover);
            font-size: 0.85rem;
            color: var(--text-heading);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--border-light);
        }

        .hero-visual .visual-badge .dot {
            width: 10px;
            height: 10px;
            background: #10B981;
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.5);
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--section-gap) 0;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== CARDS GRID ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }

        .card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
        }

        .card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            background: #E2E8F0;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.4;
        }

        .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }

        .card-tag {
            display: inline-block;
            padding: 4px 10px;
            background: #F1F5F9;
            border-radius: 4px;
            font-size: 0.78rem;
            color: var(--text-muted);
            font-weight: 500;
            align-self: flex-start;
        }

        .card-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary-blue);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
            margin-top: auto;
        }

        .card-link:hover {
            gap: 8px;
            color: var(--primary-blue-hover);
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
        }

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

        .stat-number {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary-blue);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
            font-weight: 500;
        }

        /* ========== FEATURED BLOCK ========== */
        .featured-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .featured-block.reverse {
            direction: rtl;
        }

        .featured-block.reverse>* {
            direction: ltr;
        }

        .featured-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .featured-image img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            background: #E2E8F0;
            border-radius: var(--radius-lg);
        }

        .featured-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .featured-content p {
            font-size: 1rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .featured-content .highlight-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .featured-content .highlight-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.5;
        }

        .featured-content .highlight-list li i {
            color: var(--primary-blue);
            font-size: 1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ========== SCENE CARDS ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .scene-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .scene-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-blue-light);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-blue);
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .scene-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-heading);
        }

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

        /* ========== NEWS LIST ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--card-bg);
            box-shadow: var(--shadow-card);
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            flex-wrap: wrap;
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-item:hover {
            background: #FAFBFC;
        }

        .news-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
            font-weight: 500;
            flex-shrink: 0;
            min-width: 90px;
        }

        .news-info {
            flex: 1;
            min-width: 200px;
        }

        .news-info h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 4px;
            line-height: 1.4;
        }

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

        .news-item .btn-read {
            flex-shrink: 0;
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-blue);
            border: 1px solid var(--primary-blue);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .news-item .btn-read:hover {
            background: var(--primary-blue-light);
            color: var(--primary-blue-hover);
            border-color: var(--primary-blue-hover);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--card-bg);
            transition: all var(--transition-fast);
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-heading);
            background: #FAFBFC;
            transition: all var(--transition-fast);
            text-align: left;
            cursor: pointer;
        }

        .faq-question:hover {
            background: #EFF6FF;
            color: var(--primary-blue);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary-blue);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.7;
        }

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

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 28px;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .btn-cta-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: #fff;
            color: var(--primary-blue);
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            white-space: nowrap;
        }

        .btn-cta-white:hover {
            background: #F0F4FF;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
            color: var(--primary-blue-hover);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--text-footer);
            padding: 48px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 36px;
            padding-bottom: 36px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-col p {
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 8px;
        }

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

        .footer-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
        }

        .footer-bottom a {
            color: var(--text-footer);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-bottom .sep {
            margin: 0 8px;
            opacity: 0.4;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual {
                order: -1;
            }
            .hero-visual img {
                max-width: 100%;
            }
            .featured-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .featured-block.reverse {
                direction: ltr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-title {
                font-size: 2.1rem;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 48px 0;
                min-height: auto;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .section {
                padding: var(--section-gap-sm) 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .featured-content h3 {
                font-size: 1.25rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 5px 10px;
            }
            .nav-channels {
                gap: 2px;
            }
            .nav-channels a {
                padding: 6px 10px;
                font-size: 0.8rem;
            }
            .hot-tags {
                display: none;
            }
            .hero-visual .visual-badge {
                bottom: 8px;
                right: 4px;
                padding: 10px 14px;
                font-size: 0.75rem;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-item {
                padding: 20px 14px;
            }
            .news-date {
                min-width: auto;
            }
            .hero-badge-row {
                gap: 6px;
            }
            .hero-badge {
                font-size: 0.7rem;
                padding: 4px 8px;
            }
            .card-body {
                padding: 14px;
            }
            .card-body h3 {
                font-size: 1rem;
            }
        }

/* roulang page: category5 */
:root {
            --primary-blue: #2563EB;
            --primary-blue-hover: #1D4ED8;
            --primary-blue-light: #EFF6FF;
            --bg-page: #F8FAFC;
            --bg-section-alt: #F1F5F9;
            --card-bg: #FFFFFF;
            --border-light: #E2E8F0;
            --border-input: #CBD5E1;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-footer: #94A3B8;
            --footer-bg: #1E293B;
            --accent-orange: #F97316;
            --accent-orange-hover: #EA580C;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-nav: 0 1px 4px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-lg: 120px;
            --section-gap-sm: 60px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-page);
            color: var(--text-body);
            line-height: 1.7;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary-blue-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
            font-size: 1rem;
        }
        input:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid transparent;
            transition: all var(--transition-smooth);
        }
        .site-header.scrolled {
            border-bottom-color: var(--border-light);
            box-shadow: var(--shadow-nav);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 0;
            gap: 12px;
        }
        .brand-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-link:hover {
            color: var(--primary-blue);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary-blue);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .hot-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .hot-tag {
            display: inline-block;
            padding: 5px 12px;
            background: #F1F5F9;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-body);
            white-space: nowrap;
            transition: all var(--transition-fast);
            font-weight: 500;
            letter-spacing: 0.01em;
        }
        .hot-tag:hover {
            background: #DBEAFE;
            color: var(--primary-blue);
        }
        .search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            flex-shrink: 0;
            font-size: 1.1rem;
        }
        .search-btn:hover {
            background: #F1F5F9;
            color: var(--primary-blue);
        }
        .nav-channels {
            width: 100%;
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
            align-items: center;
            padding-top: 4px;
            border-top: 1px solid var(--border-light);
        }
        .nav-channels a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 6px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-channels a:hover {
            color: var(--primary-blue);
            background: var(--primary-blue-light);
        }
        .nav-channels a.active {
            color: var(--primary-blue);
            font-weight: 600;
        }
        .nav-channels a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary-blue);
            border-radius: 1px;
        }
        .hamburger-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--text-heading);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .hamburger-btn:hover {
            background: #F1F5F9;
        }

        /* ========== HERO ========== */
        .page-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background: var(--bg-section-alt);
            overflow: hidden;
        }
        .page-hero .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.35;
            z-index: 0;
        }
        .page-hero .hero-overlay {
            position: relative;
            z-index: 1;
            width: 100%;
            padding: 60px 0;
        }
        .page-hero .hero-content {
            max-width: 700px;
        }
        .page-hero .hero-badge {
            display: inline-block;
            padding: 6px 14px;
            background: var(--accent-orange);
            color: #fff;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
        }
        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .page-hero .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 28px;
            max-width: 560px;
        }
        .page-hero .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--primary-blue);
            color: #fff;
            border: 2px solid var(--primary-blue);
        }
        .btn-primary:hover {
            background: var(--primary-blue-hover);
            border-color: var(--primary-blue-hover);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary-blue);
            border: 2px solid var(--primary-blue);
        }
        .btn-outline:hover {
            background: var(--primary-blue-light);
            color: var(--primary-blue-hover);
            border-color: var(--primary-blue-hover);
        }
        .btn-readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--primary-blue);
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-readmore:hover {
            background: var(--primary-blue-light);
            border-color: var(--primary-blue);
            color: var(--primary-blue-hover);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .btn-readmore i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }
        .btn-readmore:hover i {
            transform: translateX(3px);
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-header {
            text-align: left;
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 600px;
        }
        .section-header.centered {
            text-align: center;
        }
        .section-header.centered p {
            margin: 0 auto;
        }

        /* ========== CARDS GRID ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }
        .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 10px;
            background: var(--primary-blue-light);
            color: var(--primary-blue);
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
        }
        .stat-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-blue);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .stat-detail {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== FEATURE LIST ========== */
        .feature-list {
            list-style: none;
            display: grid;
            gap: 16px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 20px;
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .feature-list li:hover {
            border-color: var(--primary-blue);
            background: #FAFBFC;
        }
        .feature-list .feat-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--primary-blue-light);
            color: var(--primary-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.1rem;
        }
        .feature-list .feat-text h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 4px;
        }
        .feature-list .feat-text p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== TWO COLUMN ========== */
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .two-col .col-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .two-col .col-img img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }
        .two-col .col-text h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .two-col .col-text p {
            font-size: 1rem;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            list-style: none;
            display: grid;
            gap: 0;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--card-bg);
            box-shadow: var(--shadow-card);
        }
        .news-list li {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            flex-wrap: wrap;
        }
        .news-list li:last-child {
            border-bottom: none;
        }
        .news-list li:hover {
            background: #FAFBFC;
        }
        .news-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
            min-width: 90px;
            font-weight: 500;
        }
        .news-info {
            flex: 1;
            min-width: 200px;
        }
        .news-info .news-title {
            font-weight: 600;
            color: var(--text-heading);
            font-size: 0.95rem;
            display: block;
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .news-info .news-title:hover {
            color: var(--primary-blue);
        }
        .news-info .news-summary {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .news-list .btn-readmore {
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            list-style: none;
            display: grid;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--card-bg);
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #CBD5E1;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 24px;
            background: #F8FAFC;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-heading);
            text-align: left;
            transition: all var(--transition-fast);
            cursor: pointer;
            border: none;
            outline: none;
        }
        .faq-question:hover {
            background: #EFF6FF;
            color: var(--primary-blue);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: -2px;
            border-radius: var(--radius-md);
        }
        .faq-arrow {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary-blue);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 24px;
            background: #fff;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 16px 24px 20px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary-blue);
            color: #fff;
            text-align: center;
            padding: var(--section-gap) 0;
        }
        .cta-section h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .cta-section p {
            font-size: 1.05rem;
            margin-bottom: 28px;
            opacity: 0.9;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--primary-blue);
            border: 2px solid #fff;
            font-weight: 700;
        }
        .cta-section .btn:hover {
            background: #F0F4FF;
            border-color: #F0F4FF;
            color: var(--primary-blue-hover);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--text-footer);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .footer-col p {
            line-height: 1.7;
            margin-bottom: 6px;
            font-size: 0.85rem;
        }
        .footer-col a {
            display: block;
            color: var(--text-footer);
            padding: 4px 0;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: 0.8rem;
            color: var(--text-footer);
            align-items: center;
            justify-content: center;
            text-align: center;
        }
        .footer-bottom .sep {
            color: rgba(255, 255, 255, 0.2);
            margin: 0 2px;
        }
        .footer-bottom a {
            color: var(--text-footer);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .two-col {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-hero h1 {
                font-size: 2.1rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger-btn {
                display: flex;
            }
            .nav-channels {
                display: none;
                flex-direction: column;
                gap: 2px;
                padding-top: 8px;
                border-top: 1px solid var(--border-light);
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-channels a {
                width: 100%;
                padding: 10px 16px;
                border-radius: 6px;
            }
            .nav-channels a.active::after {
                display: none;
            }
            .nav-channels a.active {
                background: var(--primary-blue-light);
            }
            .hot-tags {
                display: none;
            }
            .header-inner {
                gap: 8px;
            }
            .page-hero {
                min-height: 340px;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .page-hero .hero-subtitle {
                font-size: 0.95rem;
            }
            .section {
                padding: var(--section-gap-sm) 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .news-list li {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 14px 16px;
            }
            .news-date {
                min-width: auto;
            }
            .news-list .btn-readmore {
                align-self: flex-end;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
            .two-col .col-text h2 {
                font-size: 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.4rem;
            }
            .page-hero .hero-subtitle {
                font-size: 0.85rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .container {
                padding: 0 16px;
            }
            .page-hero .hero-actions {
                flex-direction: column;
                gap: 8px;
            }
            .page-hero .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .card-body {
                padding: 14px 16px 18px;
            }
        }

/* roulang page: category6 */
:root {
            --primary-blue: #2563EB;
            --primary-blue-hover: #1D4ED8;
            --primary-blue-light: #EFF6FF;
            --bg-page: #F8FAFC;
            --bg-section-alt: #F1F5F9;
            --card-bg: #FFFFFF;
            --border-light: #E2E8F0;
            --border-input: #CBD5E1;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-footer: #94A3B8;
            --footer-bg: #1E293B;
            --accent-orange: #F97316;
            --accent-orange-hover: #EA580C;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-nav: 0 1px 4px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-lg: 120px;
            --section-gap-sm: 60px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-page);
            color: var(--text-body);
            line-height: 1.7;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary-blue-hover);
        }

        a:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

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

        button:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
            font-size: 1rem;
        }

        input:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid transparent;
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            border-bottom-color: var(--border-light);
            box-shadow: var(--shadow-nav);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 0;
            gap: 12px;
        }

        .brand-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
            text-decoration: none;
        }

        .logo-link:hover {
            color: var(--primary-blue);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary-blue);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .hot-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hot-tag {
            display: inline-block;
            padding: 5px 12px;
            background: #F1F5F9;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-body);
            white-space: nowrap;
            transition: all var(--transition-fast);
            font-weight: 500;
            letter-spacing: 0.01em;
            text-decoration: none;
        }

        .hot-tag:hover {
            background: #DBEAFE;
            color: var(--primary-blue);
        }

        .search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            flex-shrink: 0;
            font-size: 1.1rem;
            text-decoration: none;
        }

        .search-btn:hover {
            background: #F1F5F9;
            color: var(--primary-blue);
        }

        .nav-channels {
            width: 100%;
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
            align-items: center;
            padding-top: 4px;
            border-top: 1px solid var(--border-light);
        }

        .nav-channels a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 6px;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
            position: relative;
        }

        .nav-channels a:hover {
            color: var(--primary-blue);
            background: #F8FAFC;
        }

        .nav-channels a.active {
            color: var(--primary-blue);
            font-weight: 600;
        }

        .nav-channels a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary-blue);
            border-radius: 1px;
        }

        .mobile-menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--text-heading);
            background: #F8FAFC;
            flex-shrink: 0;
        }

        .mobile-menu-toggle:hover {
            background: #E2E8F0;
        }

        /* ========== BUTTONS ========== */
        .btn-primary-custom {
            background: var(--primary-blue);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            display: inline-block;
            text-decoration: none;
            cursor: pointer;
            letter-spacing: 0.01em;
        }

        .btn-primary-custom:hover {
            background: var(--primary-blue-hover);
            color: #fff;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
            transform: translateY(-1px);
        }

        .btn-primary-custom:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--primary-blue);
            border: 1px solid var(--primary-blue);
            border-radius: var(--radius-sm);
            padding: 11px 22px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            display: inline-block;
            text-decoration: none;
            cursor: pointer;
            letter-spacing: 0.01em;
        }

        .btn-outline-custom:hover {
            background: var(--primary-blue-light);
            color: var(--primary-blue-hover);
            border-color: var(--primary-blue-hover);
        }

        .btn-outline-custom:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 3px;
        }

        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary-blue);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            text-decoration: none;
            padding: 6px 0;
            border-bottom: 1px solid transparent;
        }

        .btn-read-more:hover {
            color: var(--primary-blue-hover);
            border-bottom-color: var(--primary-blue-hover);
            gap: 10px;
        }

        .btn-read-more i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }

        .btn-read-more:hover i {
            transform: translateX(3px);
        }

        .btn-accent {
            background: var(--accent-orange);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            display: inline-block;
            text-decoration: none;
            cursor: pointer;
            letter-spacing: 0.01em;
        }

        .btn-accent:hover {
            background: var(--accent-orange-hover);
            color: #fff;
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
            transform: translateY(-1px);
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            overflow: hidden;
            height: 100%;
        }

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

        .card-custom .card-img-top {
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: #E2E8F0;
        }

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

        .card-custom .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .card-custom .card-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .card-custom .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .badge-custom {
            display: inline-block;
            padding: 4px 10px;
            background: #FEF3C7;
            color: #D97706;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-hot {
            display: inline-block;
            padding: 4px 10px;
            background: #FEE2E2;
            color: #DC2626;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-new {
            display: inline-block;
            padding: 4px 10px;
            background: #DBEAFE;
            color: #2563EB;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--section-gap) 0;
        }

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

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.7;
            max-width: 700px;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header.text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== HERO (compact for category) ========== */
        .category-hero {
            position: relative;
            padding: 60px 0;
            background: linear-gradient(135deg, #F0F4FF 0%, #F8FAFC 40%, #F1F5F9 100%);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }

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

        .category-hero .hero-text h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .category-hero .hero-text p {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 550px;
        }

        .category-hero .hero-visual {
            flex: 0 0 380px;
            max-width: 100%;
            position: relative;
            z-index: 2;
        }

        .category-hero .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card-hover);
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            background: #E2E8F0;
        }

        .hero-stats-row {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        .hero-stat-item {
            text-align: center;
            min-width: 80px;
        }

        .hero-stat-item .stat-number {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary-blue);
            line-height: 1.2;
        }

        .hero-stat-item .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ========== TOPIC CARDS GRID ========== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }

        .topic-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: #CBD5E1;
        }

        .topic-card .topic-header {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .topic-card .topic-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .topic-icon.blue {
            background: #DBEAFE;
            color: #2563EB;
        }

        .topic-icon.green {
            background: #D1FAE5;
            color: #059669;
        }

        .topic-icon.orange {
            background: #FEF3C7;
            color: #D97706;
        }

        .topic-icon.purple {
            background: #EDE9FE;
            color: #7C3AED;
        }

        .topic-icon.red {
            background: #FEE2E2;
            color: #DC2626;
        }

        .topic-icon.teal {
            background: #CCFBF1;
            color: #0D9488;
        }

        .topic-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin: 0;
            line-height: 1.3;
        }

        .topic-card .topic-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }

        .topic-card .topic-stats {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .topic-card .topic-stats span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== FEATURE BLOCK ========== */
        .feature-block {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }

        .feature-block.reverse {
            flex-direction: row-reverse;
        }

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

        .feature-block .feature-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .feature-block .feature-text p {
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 8px;
        }

        .feature-block .feature-image {
            flex: 0 0 420px;
            max-width: 100%;
        }

        .feature-block .feature-image img {
            border-radius: var(--radius-lg);
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            background: #E2E8F0;
            box-shadow: var(--shadow-card);
        }

        /* ========== ACTIVITY LIST ========== */
        .activity-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .activity-list li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            flex-wrap: wrap;
        }

        .activity-list li:last-child {
            border-bottom: none;
        }

        .activity-date {
            flex-shrink: 0;
            background: var(--bg-section-alt);
            border-radius: var(--radius-sm);
            padding: 8px 14px;
            text-align: center;
            min-width: 60px;
        }

        .activity-date .day {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary-blue);
            line-height: 1;
        }

        .activity-date .month {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .activity-info h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin: 0 0 4px;
            line-height: 1.4;
        }

        .activity-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        .activity-tag {
            display: inline-block;
            padding: 3px 8px;
            background: #FEF3C7;
            color: #B45309;
            border-radius: 12px;
            font-size: 0.7rem;
            font-weight: 600;
            margin-left: 8px;
            vertical-align: middle;
        }

        /* ========== NEWS LIST ========== */
        .news-list-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            flex-wrap: wrap;
        }

        .news-list-item:last-child {
            border-bottom: none;
        }

        .news-date-badge {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
            min-width: 90px;
            padding-top: 2px;
        }

        .news-content {
            flex: 1;
            min-width: 200px;
        }

        .news-content h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin: 0 0 6px;
            line-height: 1.4;
        }

        .news-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0 0 8px;
            line-height: 1.6;
        }

        .news-action {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            padding-top: 2px;
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--card-bg);
        }

        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-heading);
            background: #F8FAFC;
            border-radius: var(--radius-md) !important;
            padding: 16px 20px;
            transition: all var(--transition-fast);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-blue-light);
            color: var(--primary-blue);
            box-shadow: none;
            border-radius: var(--radius-md) var(--radius-md) 0 0 !important;
        }

        .faq-accordion .accordion-button:hover {
            background: #EFF6FF;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
            border-color: var(--primary-blue);
        }

        .faq-accordion .accordion-body {
            padding: 16px 20px;
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.7;
            background: #fff;
        }

        .faq-accordion .accordion-button::after {
            transition: transform var(--transition-fast);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1E3A5F 0%, #1D4ED8 60%, #2563EB 100%);
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-group {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-section .btn-white {
            background: #fff;
            color: var(--primary-blue);
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-decoration: none;
            display: inline-block;
        }

        .cta-section .btn-white:hover {
            background: #F1F5F9;
            color: var(--primary-blue-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        }

        .cta-section .btn-outline-white {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: var(--radius-sm);
            padding: 11px 26px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-decoration: none;
            display: inline-block;
        }

        .cta-section .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--text-footer);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .footer-col p {
            font-size: 0.85rem;
            line-height: 1.7;
            margin: 0;
        }

        .footer-col a {
            display: block;
            color: var(--text-footer);
            font-size: 0.85rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
            text-decoration: none;
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            justify-content: space-between;
            align-items: center;
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        .footer-bottom a {
            color: var(--text-footer);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-bottom .sep {
            color: rgba(148, 163, 184, 0.4);
            margin: 0 4px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .category-hero .hero-visual {
                flex: 0 0 300px;
            }
            .category-hero .hero-text h1 {
                font-size: 2rem;
            }
            .feature-block .feature-image {
                flex: 0 0 320px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                padding: 8px 0;
            }
            .hot-tags {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-channels {
                display: none;
                flex-direction: column;
                gap: 2px;
                padding-top: 8px;
                border-top: 1px solid var(--border-light);
                width: 100%;
                background: #fff;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 8px;
                box-shadow: var(--shadow-card-hover);
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                z-index: 999;
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-channels a {
                padding: 10px 16px;
                width: 100%;
                border-radius: 6px;
            }
            .nav-channels a.active::after {
                display: none;
            }
            .nav-channels a.active {
                background: var(--primary-blue-light);
                border-radius: 6px;
            }
            .category-hero {
                padding: 40px 0;
            }
            .category-hero .hero-content {
                flex-direction: column;
                gap: 24px;
            }
            .category-hero .hero-visual {
                flex: 0 0 auto;
                width: 100%;
            }
            .category-hero .hero-text h1 {
                font-size: 1.6rem;
            }
            .category-hero .hero-text p {
                font-size: 0.9rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
                margin-bottom: 28px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .feature-block {
                flex-direction: column !important;
                gap: 24px;
            }
            .feature-block .feature-image {
                flex: 0 0 auto;
                width: 100%;
            }
            .feature-block .feature-text h3 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .hero-stats-row {
                gap: 14px;
            }
            .hero-stat-item .stat-number {
                font-size: 1.3rem;
            }
            .news-list-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-date-badge {
                min-width: auto;
            }
            .news-action {
                align-self: flex-start;
            }
            .activity-list li {
                flex-direction: column;
                gap: 8px;
            }
            .activity-date {
                align-self: flex-start;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .category-hero .hero-text h1 {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .card-custom .card-body {
                padding: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-section .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .hero-stats-row {
                flex-wrap: wrap;
                justify-content: flex-start;
            }
            .topic-card {
                padding: 14px;
            }
        }