/* roulang page: index */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1E40AF;
            --primary-bg: #EFF6FF;
            --primary-border: #BFDBFE;
            --secondary-bg: #F1F5F9;
            --secondary-bg-alt: #F8FAFC;
            --cyan: #06B6D4;
            --violet: #7C3AED;
            --text-dark: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #CBD5E1;
            --card-shadow: 0 4px 12px rgba(15,23,42,0.06);
            --card-shadow-hover: 0 8px 24px rgba(15,23,42,0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
            --transition: 0.25s ease;
            --nav-height: auto;
            --nav-shrink-height: 60px;
            --hero-min-height: 560px;
            --container-max: 1200px;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background-color: var(--secondary-bg-alt);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: 0 1px 4px rgba(15,23,42,0.06);
            transition: box-shadow var(--transition), height var(--transition);
        }
        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            transition: padding var(--transition);
        }
        .header-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-dark);
            letter-spacing: 0.5px;
        }
        .header-brand .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-brand .brand-suffix {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0;
            margin-left: 2px;
        }
        .header-brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-search-btn {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
        }
        .header-search-btn:hover {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-border);
        }
        .header-login-btn {
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary-border);
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .header-login-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .header-channel-row {
            border-top: 1px solid var(--border);
            padding: 10px 0;
            transition: all var(--transition);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .header-channel-row::-webkit-scrollbar {
            height: 3px;
        }
        .header-channel-row::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 3px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
            white-space: nowrap;
            min-width: max-content;
        }
        .main-nav li a {
            color: var(--text-body);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
        }
        .main-nav li a:hover {
            color: var(--primary);
        }
        .main-nav li a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }
        .mobile-menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-dark);
            font-size: 1.2rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .mobile-menu-toggle:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 16px 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, opacity 0.3s ease;
            opacity: 0;
        }
        .mobile-menu.open {
            max-height: 400px;
            opacity: 1;
        }
        .mobile-menu ul {
            list-style: none;
            margin: 0;
            padding: 0 24px;
        }
        .mobile-menu ul li a {
            display: block;
            padding: 12px 0;
            color: var(--text-body);
            font-weight: 500;
            border-bottom: 1px solid var(--secondary-bg);
            transition: color var(--transition);
        }
        .mobile-menu ul li a:hover,
        .mobile-menu ul li a.active {
            color: var(--primary);
        }
        .site-header.shrink .header-brand-row {
            padding: 8px 0;
        }
        .site-header.shrink .header-channel-row {
            padding: 6px 0;
        }
        .site-header.shrink .header-brand {
            font-size: 1.1rem;
        }
        .site-header.shrink .header-brand .brand-icon {
            width: 30px;
            height: 30px;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            .header-brand-row {
                padding: 10px 0;
            }
            .header-channel-row {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .mobile-menu {
                display: block;
            }
            .header-login-btn {
                display: none;
            }
        }

        /* Hero */
        .hero-section {
            position: relative;
            margin-top: 0;
            padding-top: 140px;
            min-height: var(--hero-min-height);
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--secondary-bg);
        }
        .hero-section .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .hero-section .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: rgba(37, 99, 235, 0.65);
            z-index: 1;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 72px 0;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            margin-bottom: 18px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.18);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            font-size: 0.78rem;
            font-weight: 500;
            color: #fff;
            backdrop-filter: blur(6px);
        }
        .hero-title {
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1.3;
            color: #fff;
            margin: 0 0 18px 0;
            letter-spacing: 0.5px;
        }
        .hero-subtitle {
            font-size: 1.05rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.92);
            margin: 0 0 28px 0;
            max-width: 680px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 30px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid #fff;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--primary-bg);
            color: var(--primary-dark);
            border-color: var(--primary-bg);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid rgba(255, 255, 255, 0.7);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-secondary-ghost:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            transform: translateY(-1px);
        }
        .btn-secondary-ghost:active {
            transform: scale(0.98);
        }
        .hero-trust-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 32px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.85rem;
        }
        .hero-trust-strip span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding-top: 100px;
                min-height: 480px;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-content {
                padding: 48px 0;
            }
        }
        @media (max-width: 520px) {
            .hero-section {
                min-height: 420px;
                padding-top: 90px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
        }

        /* Section Common */
        .section {
            padding: var(--section-padding);
            background: #fff;
        }
        .section-alt {
            background: var(--secondary-bg-alt);
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            letter-spacing: 0.3px;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--text-muted);
            margin: 0;
            max-width: 720px;
            line-height: 1.8;
        }
        .section-header .section-tag {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--section-padding-mobile);
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
        }

        /* Service Matrix Cards */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .service-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
            transform: translateY(-2px);
        }
        .service-card .card-cover {
            width: 100%;
            aspect-ratio: 16/9;
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 16px;
            background: var(--secondary-bg);
        }
        .service-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .service-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px 0;
        }
        .service-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0 0 14px 0;
            line-height: 1.7;
        }
        .service-card .card-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        @media (max-width: 1024px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Data Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Process Steps */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-step {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 18px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            position: relative;
        }
        .process-step:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
        }
        .process-step .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
        }
        .process-step h3 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px 0;
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }
        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Case Wall */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .case-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
        }
        .case-card:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
            transform: translateY(-2px);
        }
        .case-card .case-cover {
            width: 100%;
            aspect-ratio: 16/9;
            background: var(--secondary-bg);
        }
        .case-card .case-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-card .case-body {
            padding: 20px 22px;
        }
        .case-card .case-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .case-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px 0;
            line-height: 1.5;
        }
        .case-card p {
            font-size: 0.88rem;
            color: var(--text-body);
            margin: 0 0 14px 0;
            line-height: 1.7;
        }
        .case-card .read-more {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .case-card .read-more:hover {
            gap: 10px;
        }
        @media (max-width: 768px) {
            .case-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Popular Events */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .event-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
        }
        .event-card:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
            transform: translateY(-2px);
        }
        .event-card .event-cover {
            width: 100%;
            aspect-ratio: 16/9;
            border-radius: 8px;
            background: var(--secondary-bg);
            margin-bottom: 14px;
            overflow: hidden;
        }
        .event-card .event-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .event-card h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 6px 0;
        }
        .event-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .events-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .events-grid {
                grid-template-columns: 1fr;
            }
        }

        /* News List */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .news-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
            transform: translateY(-2px);
        }
        .news-card .news-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .news-card h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px 0;
            line-height: 1.5;
        }
        .news-card p {
            font-size: 0.84rem;
            color: var(--text-body);
            margin: 0 0 14px 0;
            line-height: 1.7;
            flex-grow: 1;
        }
        .news-card .read-more {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Brand Intro */
        .brand-intro-section {
            background: var(--secondary-bg);
        }
        .brand-intro-content {
            max-width: 820px;
            margin: 0 auto;
            text-align: center;
        }
        .brand-intro-content p {
            font-size: 1rem;
            line-height: 1.9;
            color: var(--text-body);
            margin-bottom: 16px;
            text-align: justify;
        }

        /* Trend / Index */
        .trend-section {
            background: #fff;
        }
        .trend-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: stretch;
        }
        .trend-chart {
            background: var(--secondary-bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            min-height: 260px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .trend-chart .chart-bars {
            display: flex;
            align-items: flex-end;
            gap: 10px;
            height: 160px;
            padding-top: 20px;
        }
        .trend-chart .chart-bar {
            flex: 1;
            border-radius: 4px 4px 0 0;
            background: var(--primary-light);
            opacity: 0.8;
            transition: all var(--transition);
            position: relative;
            min-height: 20px;
        }
        .trend-chart .chart-bar:hover {
            opacity: 1;
            background: var(--primary);
        }
        .trend-chart .chart-label {
            font-size: 0.7rem;
            color: var(--text-muted);
            margin-top: 8px;
            text-align: center;
        }
        .trend-chart .chart-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 6px;
        }
        .trend-chart .chart-bar-wrap {
            flex: 1;
            height: 28px;
            background: var(--secondary-bg);
            border-radius: 4px;
            overflow: hidden;
        }
        .trend-chart .chart-bar-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--primary), var(--cyan));
            transition: width 0.8s ease;
        }
        .trend-info-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--card-shadow);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .trend-info-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 12px 0;
        }
        .trend-info-card p {
            font-size: 0.9rem;
            color: var(--text-body);
            margin: 0 0 16px 0;
            line-height: 1.8;
        }
        .trend-info-card .trend-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .trend-tags .tag {
            background: var(--secondary-bg);
            color: var(--text-body);
            font-size: 0.75rem;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--border);
        }
        @media (max-width: 768px) {
            .trend-layout {
                grid-template-columns: 1fr;
            }
        }

        /* Partners */
        .partners-section {
            background: var(--secondary-bg-alt);
            padding: 48px 0;
        }
        .partners-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px 32px;
            align-items: center;
        }
        .partner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-badge);
            padding: 8px 20px;
            color: var(--text-muted);
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .partner-badge i {
            color: var(--primary-light);
            font-size: 0.9rem;
        }
        .partner-badge:hover {
            border-color: var(--primary-border);
            color: var(--text-dark);
        }

        /* Tools */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .tool-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            text-align: center;
        }
        .tool-card:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
            transform: translateY(-2px);
        }
        .tool-card .tool-icon {
            width: 52px;
            height: 52px;
            margin: 0 auto 14px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }
        .tool-card h3 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px 0;
        }
        .tool-card p {
            font-size: 0.84rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }
        @media (max-width: 1024px) {
            .tools-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 768px) {
            .tools-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Expert Views */
        .expert-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .expert-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 16px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
        }
        .expert-card:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
        }
        .expert-card .expert-cover {
            width: 100%;
            aspect-ratio: 16/9;
            border-radius: 8px;
            background: var(--secondary-bg);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .expert-card .expert-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .expert-card h3 {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 6px 0;
            line-height: 1.5;
        }
        .expert-card p {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .expert-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .expert-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .testimonial-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            position: relative;
        }
        .testimonial-card:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
        }
        .testimonial-card .quote-icon {
            color: var(--primary-light);
            font-size: 1.4rem;
            opacity: 0.4;
            margin-bottom: 10px;
            display: block;
        }
        .testimonial-card p {
            font-size: 0.88rem;
            color: var(--text-body);
            line-height: 1.8;
            margin: 0 0 14px 0;
        }
        .testimonial-card .testimonial-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 10px;
        }
        @media (max-width: 1024px) {
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            box-shadow: var(--card-shadow);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--card-shadow-hover);
        }
        .faq-item .faq-question {
            padding: 18px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            user-select: none;
            transition: background var(--transition);
            gap: 12px;
        }
        .faq-item .faq-question:hover {
            background: var(--secondary-bg);
        }
        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-item .faq-answer p {
            font-size: 0.85rem;
            color: var(--text-body);
            line-height: 1.8;
            margin: 0;
        }

        /* Security / Guarantee Strip */
        .guarantee-strip {
            background: var(--secondary-bg);
            padding: 40px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .guarantee-item {
            padding: 16px;
        }
        .guarantee-item i {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 10px;
            display: block;
        }
        .guarantee-item span {
            font-size: 0.85rem;
            color: var(--text-body);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }
        @media (max-width: 520px) {
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Contact / CTA */
        .cta-section {
            background: var(--primary);
            padding: 64px 0;
            color: #fff;
        }
        .cta-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .cta-info h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 16px 0;
        }
        .cta-info p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.8;
            margin: 0 0 20px 0;
        }
        .cta-info .cta-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.88rem;
            margin-bottom: 10px;
        }
        .cta-info .cta-contact-item i {
            width: 20px;
            color: #fff;
        }
        .cta-form {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
        }
        .cta-form h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 18px 0;
        }
        .cta-form .form-group {
            margin-bottom: 14px;
        }
        .cta-form label {
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-body);
            display: block;
            margin-bottom: 6px;
        }
        .cta-form input,
        .cta-form textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            color: var(--text-dark);
            background: #fff;
            transition: border-color var(--transition);
            font-family: inherit;
        }
        .cta-form input:focus,
        .cta-form textarea:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }
        .cta-form textarea {
            resize: vertical;
            min-height: 90px;
        }
        .cta-form .btn-submit {
            width: 100%;
            padding: 12px;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.92rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
        }
        .cta-form .btn-submit:hover {
            background: var(--primary-dark);
        }
        .cta-form .btn-submit:active {
            transform: scale(0.98);
        }
        @media (max-width: 768px) {
            .cta-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand {
            color: #fff;
        }
        .footer-brand .brand-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 0.92rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px 0;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.85rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* Utility */
        .text-center {
            text-align: center;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Foundation overrides */
        .grid-container {
            max-width: var(--container-max);
        }
        .button {
            border-radius: var(--radius-btn);
        }
        a {
            text-decoration: none;
        }
        a:focus,
        button:focus {
            outline-offset: 2px;
        }

/* roulang page: category3 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1E40AF;
            --primary-bg: #EFF6FF;
            --primary-border: #BFDBFE;
            --secondary-bg: #F1F5F9;
            --secondary-bg-alt: #F8FAFC;
            --cyan: #06B6D4;
            --violet: #7C3AED;
            --text-dark: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #CBD5E1;
            --card-shadow: 0 4px 12px rgba(15,23,42,0.06);
            --card-shadow-hover: 0 8px 24px rgba(15,23,42,0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
            --transition: 0.25s ease;
            --nav-height: auto;
            --nav-shrink-height: 60px;
            --hero-min-height: 360px;
            --container-max: 1200px;
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background-color: var(--secondary-bg-alt);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: 0 1px 4px rgba(15,23,42,0.06);
            transition: box-shadow var(--transition);
        }

        .site-header.is-shrunk {
            box-shadow: 0 4px 16px rgba(15,23,42,0.1);
        }

        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            transition: padding var(--transition);
        }

        .site-header.is-shrunk .header-brand-row {
            padding: 8px 0;
        }

        .header-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-dark);
            letter-spacing: 0.5px;
        }

        .header-brand .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .site-header.is-shrunk .header-brand .brand-icon {
            width: 30px;
            height: 30px;
            font-size: 0.9rem;
            border-radius: 6px;
        }

        .header-brand .brand-suffix {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0;
            margin-left: 2px;
        }

        .header-brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-search-btn {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
        }

        .header-search-btn:hover {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-border);
        }

        .header-login-btn {
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary-border);
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .header-login-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .header-channel-row {
            border-top: 1px solid var(--border);
            padding: 10px 0;
            transition: all var(--transition);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .site-header.is-shrunk .header-channel-row {
            padding: 6px 0;
        }

        .header-channel-row::-webkit-scrollbar {
            height: 3px;
        }

        .header-channel-row::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 3px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
            white-space: nowrap;
            min-width: max-content;
        }

        .main-nav li a {
            color: var(--text-body);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            display: inline-block;
        }

        .main-nav li a:hover {
            color: var(--primary);
        }

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

        .hamburger-btn {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-dark);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
            font-size: 1.2rem;
        }

        .hamburger-btn:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 16px 0;
        }

        .mobile-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav ul li a {
            display: block;
            padding: 10px 0;
            color: var(--text-body);
            font-weight: 500;
            border-bottom: 1px solid var(--secondary-bg);
            transition: all var(--transition);
        }

        .mobile-nav ul li a:hover,
        .mobile-nav ul li a.active {
            color: var(--primary);
            padding-left: 8px;
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 120px 0 16px;
            background: var(--secondary-bg-alt);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--primary);
        }

        .breadcrumb-nav a:hover {
            color: var(--primary-dark);
        }

        .breadcrumb-nav .separator {
            color: var(--border-light);
        }

        .breadcrumb-nav .current {
            color: var(--text-muted);
            cursor: default;
        }

        /* Category Hero */
        .category-hero {
            background: linear-gradient(135deg, #EFF6FF 0%, #F8FAFC 100%);
            border-bottom: 1px solid var(--border);
            padding: 32px 0 40px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(37,99,235,0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(6,182,212,0.05) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .category-hero h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 10px;
            letter-spacing: 1px;
        }

        .category-hero .subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin: 0;
            max-width: 720px;
        }

        .category-hero .hero-badge-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 18px;
            flex-wrap: wrap;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            background: #fff;
            border: 1px solid var(--border);
            font-size: 0.8rem;
            color: var(--text-body);
            font-weight: 500;
        }

        .hero-badge i {
            color: var(--cyan);
            font-size: 0.75rem;
        }

        /* Filter Bar */
        .filter-section {
            padding: 24px 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 60px;
            z-index: 50;
        }

        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

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

        .filter-tab {
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-body);
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-tab:hover {
            border-color: var(--primary-border);
            background: var(--primary-bg);
            color: var(--primary);
        }

        .filter-tab.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

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

        .filter-select {
            padding: 8px 12px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-body);
            font-size: 0.85rem;
            cursor: pointer;
            min-width: 120px;
            transition: all var(--transition);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 10px center;
            padding-right: 30px;
        }

        .filter-select:focus {
            border-color: var(--primary);
            outline: none;
        }

        /* Cards Grid */
        .cards-section {
            padding: 48px 0;
            background: var(--secondary-bg-alt);
        }

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

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

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

        .card-cover {
            width: 100%;
            aspect-ratio: 16 / 9;
            background: var(--secondary-bg);
            overflow: hidden;
            position: relative;
            flex-shrink: 0;
        }

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

        .card:hover .card-cover img {
            transform: scale(1.03);
        }

        .card-cover .cover-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            border-radius: var(--radius-badge);
            background: rgba(15,23,42,0.7);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            backdrop-filter: blur(4px);
            letter-spacing: 0.5px;
        }

        .card-content {
            padding: 18px 18px 16px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-summary {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0 0 12px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .card-date {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .card-date i {
            font-size: 0.7rem;
        }

        .card-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 0;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
            border: none;
            background: transparent;
            cursor: pointer;
        }

        .card-read-more:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        .card-read-more i {
            font-size: 0.7rem;
            transition: transform var(--transition);
        }

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

        /* Load More Button */
        .load-more-section {
            padding: 0 0 56px;
            background: var(--secondary-bg-alt);
            text-align: center;
        }

        .load-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary-border);
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
        }

        .load-more-btn:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

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

        /* Category Entry Section */
        .category-entry-section {
            padding: 48px 0;
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-header h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0;
            letter-spacing: 0.5px;
        }

        .section-header .section-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .category-entry-card {
            display: block;
            padding: 20px 16px;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            background: var(--secondary-bg-alt);
            text-align: center;
            transition: all var(--transition);
        }

        .category-entry-card:hover {
            border-color: var(--primary-border);
            background: var(--primary-bg);
            transform: translateY(-2px);
            box-shadow: var(--card-shadow);
        }

        .category-entry-card .entry-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: #fff;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 10px;
            color: var(--primary);
            font-size: 1.1rem;
            transition: all var(--transition);
        }

        .category-entry-card:hover .entry-icon {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .category-entry-card .entry-name {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0;
        }

        /* Data Snapshot Section */
        .data-snapshot-section {
            padding: 48px 0;
            background: var(--secondary-bg-alt);
        }

        .data-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .data-snapshot-card {
            padding: 24px;
            border-radius: var(--radius-card);
            background: #fff;
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            text-align: center;
            transition: all var(--transition);
        }

        .data-snapshot-card:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
        }

        .snapshot-value {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

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

        .snapshot-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 8px;
            line-height: 1.6;
        }

        /* Tags Section */
        .tags-section {
            padding: 40px 0;
            background: var(--secondary-bg-alt);
        }

        .tags-cloud {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .tag-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            background: #fff;
            border: 1px solid var(--border);
            font-size: 0.82rem;
            color: var(--text-body);
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
        }

        .tag-badge:hover {
            border-color: var(--primary-border);
            background: var(--primary-bg);
            color: var(--primary);
        }

        .tag-badge i {
            font-size: 0.7rem;
            color: var(--cyan);
        }

        /* Mini FAQ Section */
        .mini-faq-section {
            padding: 48px 0;
            background: #fff;
            border-top: 1px solid var(--border);
        }

        .mini-faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }

        .mini-faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            background: var(--secondary-bg-alt);
            padding: 16px 20px;
            transition: all var(--transition);
        }

        .mini-faq-item:hover {
            border-color: var(--primary-border);
            background: var(--primary-bg);
        }

        .mini-faq-question {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mini-faq-question .q-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            flex-shrink: 0;
        }

        .mini-faq-answer {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
            padding-left: 30px;
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: rgba(255,255,255,0.8);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .brand-name {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .brand-name i {
            color: var(--cyan);
            font-size: 1.2rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.65);
            margin: 0;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            color: rgba(255,255,255,0.65);
            font-size: 0.85rem;
            transition: all var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--cyan);
        }

        .footer-col ul li span {
            color: rgba(255,255,255,0.7);
            font-size: 0.85rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.5);
        }

        .footer-bottom a {
            color: rgba(255,255,255,0.6);
            font-size: 0.8rem;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .category-entry-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .data-snapshot-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .header-channel-row {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .header-brand .brand-suffix {
                display: none;
            }
            .header-brand {
                font-size: 1.1rem;
            }
            .header-brand-actions .header-login-btn {
                display: none;
            }
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .data-snapshot-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero .subtitle {
                font-size: 0.95rem;
            }
            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-tabs {
                justify-content: flex-start;
                overflow-x: auto;
                flex-wrap: nowrap;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
            }
            .filter-tab {
                white-space: nowrap;
                flex-shrink: 0;
            }
            .filter-select-group {
                justify-content: flex-start;
                overflow-x: auto;
            }
            .filter-select {
                min-width: 100px;
                flex-shrink: 0;
            }
            .breadcrumb-section {
                padding-top: 100px;
            }
            .snapshot-value {
                font-size: 1.8rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .category-entry-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cards-grid {
                gap: 14px;
            }
            .header-brand {
                font-size: 1rem;
                gap: 6px;
            }
            .header-brand .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .header-search-btn {
                width: 36px;
                height: 36px;
                font-size: 0.85rem;
            }
            .main-nav {
                gap: 20px;
            }
            .main-nav li a {
                font-size: 0.85rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1E40AF;
            --primary-bg: #EFF6FF;
            --primary-border: #BFDBFE;
            --secondary-bg: #F1F5F9;
            --secondary-bg-alt: #F8FAFC;
            --cyan: #06B6D4;
            --violet: #7C3AED;
            --text-dark: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #CBD5E1;
            --card-shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
            --card-shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
            --transition: 0.25s ease;
            --nav-height: auto;
            --nav-shrink-height: 60px;
            --hero-min-height: 560px;
            --container-max: 1200px;
        }

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

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background-color: var(--secondary-bg-alt);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        section {
            padding: var(--section-padding);
        }

        @media (max-width: 640px) {
            section {
                padding: var(--section-padding-mobile);
            }
        }

        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            border: 1px solid var(--primary-border);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px;
            line-height: 1.35;
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin: 0 0 32px;
            line-height: 1.7;
            max-width: 720px;
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: 0 1px 4px rgba(15, 23, 42, 0.06);
            transition: box-shadow var(--transition), height var(--transition);
        }

        .site-header.shrink {
            box-shadow: 0 2px 12px rgba(15, 23, 42, 0.1);
        }

        .header-wrapper {
            display: flex;
            flex-direction: column;
        }

        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            transition: padding var(--transition);
        }

        .site-header.shrink .header-brand-row {
            padding: 8px 0;
        }

        .header-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            text-decoration: none;
        }

        .header-brand:hover {
            color: var(--text-dark);
        }

        .header-brand .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .header-brand .brand-suffix {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0;
            margin-left: 2px;
        }

        .header-brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-search-btn {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
            font-size: 1rem;
        }

        .header-search-btn:hover {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-border);
        }

        .header-login-btn {
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary-border);
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            font-family: inherit;
        }

        .header-login-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .header-channel-row {
            border-top: 1px solid var(--border);
            padding: 10px 0;
            transition: all var(--transition);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .site-header.shrink .header-channel-row {
            padding: 6px 0;
        }

        .header-channel-row::-webkit-scrollbar {
            height: 3px;
        }

        .header-channel-row::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 3px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
            white-space: nowrap;
            min-width: max-content;
        }

        .main-nav li a {
            color: var(--text-body);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            text-decoration: none;
        }

        .main-nav li a:hover {
            color: var(--primary);
        }

        .main-nav li a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .mobile-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-dark);
            font-size: 1.2rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }

        .mobile-toggle:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: flex;
            }

            .header-channel-row {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                border-top: 1px solid var(--border);
                box-shadow: 0 12px 24px rgba(15, 23, 42, 0.1);
                padding: 16px 24px;
                max-height: calc(100vh - 70px);
                overflow-y: auto;
            }

            .header-channel-row.open {
                display: block;
            }

            .main-nav {
                flex-direction: column;
                gap: 4px;
                min-width: auto;
                white-space: normal;
            }

            .main-nav li a {
                display: block;
                padding: 12px 0;
                font-size: 1rem;
                border-bottom: 1px solid var(--border);
            }

            .main-nav li:last-child a {
                border-bottom: none;
            }

            .header-brand .brand-suffix {
                display: none;
            }

            .header-login-btn {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
        }

        /* Main content - Category Page */
        main {
            padding-top: 120px;
        }

        @media (max-width: 768px) {
            main {
                padding-top: 70px;
            }
        }

        /* Category Banner */
        .category-banner {
            background: var(--primary-bg);
            border-bottom: 1px solid var(--primary-border);
            padding: 48px 0;
            position: relative;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: 5%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-banner .container {
            position: relative;
            z-index: 1;
        }

        .category-banner h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }

        .category-banner .subtitle {
            font-size: 1rem;
            color: var(--text-body);
            margin: 0;
            line-height: 1.7;
            max-width: 680px;
        }

        @media (max-width: 640px) {
            .category-banner {
                padding: 32px 0;
            }
            .category-banner h1 {
                font-size: 1.8rem;
            }
            .category-banner .subtitle {
                font-size: 0.9rem;
            }
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--border-light);
            font-size: 0.8rem;
        }

        .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 600;
        }

        /* Filter / Sort Bar */
        .filter-bar {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
            position: sticky;
            top: 60px;
            z-index: 50;
        }

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

        .filter-tab {
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-body);
            font-weight: 500;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all var(--transition);
            font-family: inherit;
            white-space: nowrap;
        }

        .filter-tab:hover {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-border);
        }

        .filter-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        @media (max-width: 640px) {
            .filter-tabs {
                gap: 6px;
            }
            .filter-tab {
                padding: 6px 14px;
                font-size: 0.78rem;
            }
        }

        /* Content Cards List */
        .cards-section {
            padding: 48px 0;
        }

        .cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-bottom: 32px;
        }

        @media (min-width: 1025px) {
            .cards-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }

        .content-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--card-shadow);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .content-card .card-cover {
            aspect-ratio: 16 / 9;
            background: #E2E8F0;
            overflow: hidden;
            flex-shrink: 0;
        }

        .content-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

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

        .content-card .card-body {
            padding: 20px 20px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .content-card .card-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .content-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .content-card .card-excerpt {
            font-size: 0.88rem;
            color: var(--text-body);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-card .card-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            align-self: flex-start;
            transition: all var(--transition);
            text-decoration: none;
        }

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

        .content-card .card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition);
        }

        /* Load More */
        .load-more-wrap {
            text-align: center;
        }

        .load-more-btn {
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary-border);
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            font-family: inherit;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .load-more-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* Category Entry Cards */
        .category-entry-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 48px 0;
        }

        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        @media (max-width: 1024px) {
            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 640px) {
            .category-entry-grid {
                grid-template-columns: 1fr;
            }
        }

        .category-entry-card {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 18px;
            background: var(--secondary-bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            transition: all var(--transition);
            text-decoration: none;
            color: var(--text-dark);
        }

        .category-entry-card:hover {
            background: var(--primary-bg);
            border-color: var(--primary-border);
            color: var(--text-dark);
            box-shadow: var(--card-shadow);
        }

        .category-entry-card .entry-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .category-entry-card .entry-info {
            flex: 1;
            min-width: 0;
        }

        .category-entry-card .entry-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-dark);
            margin: 0 0 2px;
        }

        .category-entry-card .entry-desc {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin: 0;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .category-entry-card .entry-arrow {
            color: var(--primary);
            font-size: 0.8rem;
        }

        /* Data Snapshot */
        .data-snapshot-section {
            background: var(--secondary-bg);
            padding: 48px 0;
        }

        .snapshot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        @media (max-width: 768px) {
            .snapshot-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        .snapshot-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition);
        }

        .snapshot-item:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
        }

        .snapshot-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 6px;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

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

        /* Tag Cloud */
        .tag-cloud-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 48px 0;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-chip {
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--border);
            background: var(--secondary-bg-alt);
            color: var(--text-body);
            font-size: 0.82rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            font-family: inherit;
        }

        .tag-chip:hover {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-border);
        }

        /* FAQ */
        .faq-section {
            padding: 48px 0;
            background: var(--secondary-bg-alt);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .faq-item:hover {
            border-color: var(--primary-border);
            box-shadow: var(--card-shadow);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            user-select: none;
            transition: all var(--transition);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px 0 60px;
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            transition: all var(--transition);
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding-bottom: 16px;
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: rgba(255, 255, 255, 0.85);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .footer-brand .brand-name {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .brand-name i {
            color: var(--primary-light);
            font-size: 1.2rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin: 0 0 16px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: 0.5px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.85rem;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        @media (max-width: 640px) {
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* General utility */
        .text-center {
            text-align: center;
        }

        .mt-0 {
            margin-top: 0;
        }

        .mb-0 {
            margin-bottom: 0;
        }

/* roulang page: category2 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1E40AF;
            --primary-bg: #EFF6FF;
            --primary-border: #BFDBFE;
            --secondary-bg: #F1F5F9;
            --secondary-bg-alt: #F8FAFC;
            --cyan: #06B6D4;
            --violet: #7C3AED;
            --text-dark: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #CBD5E1;
            --card-shadow: 0 4px 12px rgba(15,23,42,0.06);
            --card-shadow-hover: 0 8px 24px rgba(15,23,42,0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
            --transition: 0.25s ease;
            --nav-height: auto;
            --nav-shrink-height: 60px;
            --hero-min-height: 560px;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background-color: var(--secondary-bg-alt);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: 0 1px 4px rgba(15,23,42,0.06);
            transition: box-shadow var(--transition), height var(--transition);
        }
        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            transition: padding var(--transition);
        }
        .header-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-dark);
            letter-spacing: 0.5px;
        }
        .header-brand .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-brand .brand-suffix {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0;
            margin-left: 2px;
        }
        .header-brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-search-btn {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
        }
        .header-search-btn:hover {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-border);
        }
        .header-login-btn {
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary-border);
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .header-login-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .header-channel-row {
            border-top: 1px solid var(--border);
            padding: 10px 0;
            transition: all var(--transition);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .header-channel-row::-webkit-scrollbar {
            height: 3px;
        }
        .header-channel-row::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 3px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
            white-space: nowrap;
            min-width: max-content;
        }
        .main-nav li a {
            color: var(--text-body);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
        }
        .main-nav li a:hover {
            color: var(--primary);
        }
        .main-nav li a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-dark);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .header-channel-row {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                box-shadow: 0 8px 24px rgba(15,23,42,0.12);
                border-top: 1px solid var(--border);
                padding: 12px 0;
            }
            .header-channel-row.is-open {
                display: block;
            }
            .main-nav {
                flex-direction: column;
                gap: 0;
                min-width: auto;
                padding: 0 16px;
            }
            .main-nav li a {
                display: block;
                padding: 10px 0;
                border-bottom: 1px solid var(--secondary-bg);
            }
            .main-nav li a.active {
                border-bottom-color: var(--primary);
                background: var(--primary-bg);
                padding-left: 12px;
                border-radius: 6px;
            }
            .header-login-btn {
                font-size: 0;
                width: 42px;
                height: 42px;
                padding: 0;
                border-radius: 50%;
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .header-login-btn::before {
                content: '\f007';
                font-family: 'Font Awesome 6 Free';
                font-weight: 900;
                font-size: 1rem;
            }
        }
        .site-header.shrink .header-brand-row {
            padding: 8px 0;
        }
        .site-header.shrink .header-brand {
            font-size: 1.1rem;
        }
        .site-header.shrink .header-brand .brand-icon {
            width: 30px;
            height: 30px;
            font-size: 0.9rem;
        }
        .site-header.shrink .header-brand .brand-suffix {
            display: none;
        }
        .site-header.shrink .header-channel-row {
            padding: 6px 0;
        }
        main {
            padding-top: 128px;
        }
        @media (max-width: 768px) {
            main {
                padding-top: 70px;
            }
        }
        .category-banner {
            background: linear-gradient(135deg, #EFF6FF 0%, #F8FAFC 45%, #E0F2FE 100%);
            padding: 36px 0 30px;
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(37,99,235,0.08) 0%, transparent 70%);
        }
        .category-banner .container {
            position: relative;
            z-index: 1;
        }
        .banner-grid {
            display: flex;
            align-items: center;
            gap: 28px;
            flex-wrap: wrap;
        }
        .banner-info {
            flex: 1 1 50%;
            min-width: 280px;
        }
        .banner-info h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            letter-spacing: 0.3px;
        }
        .banner-info .banner-sub {
            font-size: 1rem;
            color: var(--text-body);
            margin: 0 0 16px;
            line-height: 1.7;
        }
        .countdown-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            background: #fff;
            border: 1px solid var(--border);
            padding: 10px 18px;
            border-radius: var(--radius-card);
            box-shadow: var(--card-shadow);
            max-width: 420px;
        }
        .countdown-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 600;
            white-space: nowrap;
        }
        .countdown-timer {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .countdown-timer .cd-item {
            background: var(--primary);
            color: #fff;
            border-radius: 6px;
            padding: 4px 8px;
            font-weight: 700;
            font-size: 1rem;
            min-width: 42px;
            text-align: center;
            letter-spacing: 0.5px;
        }
        .countdown-timer .cd-sep {
            color: var(--primary);
            font-weight: 700;
            font-size: 1.1rem;
        }
        .banner-featured {
            flex: 1 1 38%;
            min-width: 260px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            overflow: hidden;
            display: flex;
            transition: all var(--transition);
        }
        .banner-featured:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
            transform: translateY(-2px);
        }
        .banner-featured .feat-img {
            width: 140px;
            min-height: 100%;
            object-fit: cover;
            flex-shrink: 0;
        }
        .banner-featured .feat-body {
            padding: 14px 18px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
        }
        .banner-featured .feat-tag {
            font-size: 0.75rem;
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-bg);
            display: inline-block;
            padding: 2px 10px;
            border-radius: var(--radius-badge);
            width: fit-content;
        }
        .banner-featured .feat-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.5;
            margin: 0;
        }
        .banner-featured .feat-date {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .banner-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.3px;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: var(--primary-bg);
            color: var(--primary);
            border: 1px solid var(--primary-border);
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-secondary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        @media (max-width: 768px) {
            .category-banner {
                padding: 20px 0 24px;
            }
            .banner-grid {
                flex-direction: column;
                gap: 16px;
            }
            .banner-info h1 {
                font-size: 1.7rem;
            }
            .banner-featured {
                width: 100%;
            }
            .banner-featured .feat-img {
                width: 110px;
            }
            .countdown-wrap {
                max-width: 100%;
                padding: 8px 12px;
            }
            .countdown-timer .cd-item {
                min-width: 34px;
                font-size: 0.85rem;
                padding: 4px 6px;
            }
        }
        .breadcrumb-section {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
        }
        .breadcrumbs {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
            font-size: 0.85rem;
            flex-wrap: wrap;
        }
        .breadcrumbs li {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
        }
        .breadcrumbs li:not(:last-child)::after {
            content: '/';
            color: var(--border-light);
            font-size: 0.8rem;
        }
        .breadcrumbs a {
            color: var(--text-muted);
        }
        .breadcrumbs a:hover {
            color: var(--primary);
        }
        .breadcrumbs .current {
            color: var(--text-dark);
            font-weight: 600;
        }
        .filter-bar {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .filter-bar .container {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .filter-tabs {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .filter-tab {
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-body);
            background: var(--secondary-bg);
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tab:hover {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-border);
        }
        .filter-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .filter-select {
            padding: 6px 12px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--text-body);
            font-size: 0.85rem;
            cursor: pointer;
            min-width: 140px;
            transition: all var(--transition);
        }
        .filter-select:focus {
            border-color: var(--primary-light);
            outline: 2px solid var(--primary-light);
            outline-offset: 1px;
        }
        .filter-search {
            flex: 1;
            min-width: 180px;
            display: flex;
            gap: 8px;
        }
        .filter-search input {
            flex: 1;
            padding: 6px 14px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-body);
            transition: all var(--transition);
        }
        .filter-search input:focus {
            border-color: var(--primary-light);
            outline: none;
            box-shadow: 0 0 0 2px rgba(37,99,235,0.1);
        }
        .filter-search button {
            padding: 6px 18px;
            border-radius: var(--radius-btn);
            border: none;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition);
        }
        .filter-search button:hover {
            background: var(--primary-dark);
        }
        .guides-section {
            padding: var(--section-padding);
            background: var(--secondary-bg-alt);
        }
        .section-head {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .section-head h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0;
            letter-spacing: 0.3px;
        }
        .section-head .head-note {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .guides-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        @media (max-width: 768px) {
            .guides-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }
        .guide-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--card-shadow);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            box-shadow: var(--card-shadow-hover);
            border-color: var(--primary-border);
            transform: translateY(-3px);
        }
        .guide-card .card-img-wrapper {
            position: relative;
            padding-top: 56.25%;
            background: #E2E8F0;
            overflow: hidden;
        }
        .guide-card .card-img-wrapper img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .card-img-wrapper img {
            transform: scale(1.05);
        }
        .guide-card .card-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            z-index: 2;
        }
        .guide-card .card-tag.cyan {
            background: var(--cyan);
        }
        .guide-card .card-tag.violet {
            background: var(--violet);
        }
        .guide-card .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .guide-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.5;
        }
        .guide-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .guide-card .card-desc {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }
        .guide-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            transition: all var(--transition);
            align-self: flex-start;
        }
        .guide-card .card-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }
        .load-more-wrap {
            display: flex;
            justify-content: center;
            margin-top: 32px;
        }
        .btn-load-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            background: #fff;
            border: 1px solid var(--primary-border);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-load-more:hover {
            background: var(--primary-bg);
            border-color: var(--primary);
        }
        .category-entry-section {
            padding: var(--section-padding);
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .category-entry-section .section-head {
            margin-bottom: 24px;
        }
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 14px;
        }
        @media (max-width: 1024px) {
            .category-entry-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 640px) {
            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
        }
        .entry-card {
            background: var(--secondary-bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 16px;
            text-align: center;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
        }
        .entry-card:hover {
            border-color: var(--primary-border);
            box-shadow: var(--card-shadow-hover);
            background: #fff;
        }
        .entry-card .entry-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }
        .entry-card .entry-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-dark);
        }
        .entry-card .entry-desc {
            font-size: 0.75rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .data-snapshot-section {
            padding: var(--section-padding);
            background: var(--secondary-bg);
        }
        .snapshot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        @media (max-width: 768px) {
            .snapshot-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }
        .snapshot-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 24px 20px;
            border: 1px solid var(--border);
            text-align: center;
            transition: all var(--transition);
        }
        .snapshot-card:hover {
            border-color: var(--primary-border);
            box-shadow: var(--card-shadow-hover);
        }
        .snapshot-card .snap-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }
        .snapshot-card .snap-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .faq-section {
            padding: var(--section-padding);
            background: #fff;
            border-top: 1px solid var(--border);
        }
        .faq-section .section-head {
            margin-bottom: 20px;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
            background: #fff;
        }
        .faq-item:hover {
            border-color: var(--primary-border);
        }
        .faq-item.is-open {
            background: var(--secondary-bg-alt);
            border-color: var(--primary-border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 14px 18px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            transition: all var(--transition);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition);
        }
        .faq-item.is-open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 18px;
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.7;
        }
        .faq-item.is-open .faq-answer {
            max-height: 200px;
            padding: 0 18px 16px;
        }
        .site-footer {
            background: #0F172A;
            color: rgba(255,255,255,0.75);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .footer-brand .brand-name {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand .brand-name i {
            color: var(--primary-light);
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.6);
            margin: 0 0 12px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255,255,255,0.65);
            font-size: 0.85rem;
            transition: all var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.8rem;
            color: rgba(255,255,255,0.5);
            gap: 12px;
            flex-wrap: wrap;
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.65);
            font-size: 0.8rem;
            transition: all var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

/* roulang page: category4 */
:root {
        --primary: #2563EB;
        --primary-light: #3B82F6;
        --primary-dark: #1E40AF;
        --primary-bg: #EFF6FF;
        --primary-border: #BFDBFE;
        --secondary-bg: #F1F5F9;
        --secondary-bg-alt: #F8FAFC;
        --cyan: #06B6D4;
        --violet: #7C3AED;
        --text-dark: #0F172A;
        --text-body: #334155;
        --text-muted: #64748B;
        --border: #E2E8F0;
        --border-light: #CBD5E1;
        --card-shadow: 0 4px 12px rgba(15,23,42,0.06);
        --card-shadow-hover: 0 8px 24px rgba(15,23,42,0.12);
        --radius-card: 12px;
        --radius-btn: 8px;
        --radius-badge: 999px;
        --section-padding: 72px 0;
        --section-padding-mobile: 48px 0;
        --transition: 0.25s ease;
        --nav-height: auto;
        --nav-shrink-height: 60px;
        --hero-min-height: 560px;
        --container-max: 1200px;
    }
    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    body {
        font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
        font-size: 16px;
        line-height: 1.75;
        color: var(--text-body);
        background-color: var(--secondary-bg-alt);
        margin: 0;
        padding: 0;
        overflow-x: hidden;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: color var(--transition);
    }
    a:hover {
        color: var(--primary-dark);
    }
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible {
        outline: 2px solid var(--primary-light);
        outline-offset: 2px;
        border-radius: 4px;
    }
    .container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }
    @media (max-width: 640px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }
    }

    /* Header / Navigation */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: #ffffff;
        box-shadow: 0 1px 4px rgba(15,23,42,0.06);
        transition: box-shadow var(--transition), height var(--transition);
    }
    .site-header.shrink {
        box-shadow: 0 2px 12px rgba(15,23,42,0.1);
    }
    .header-brand-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 14px 0;
        transition: padding var(--transition);
    }
    .site-header.shrink .header-brand-row {
        padding: 8px 0;
    }
    .header-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 700;
        font-size: 1.3rem;
        color: var(--text-dark);
        letter-spacing: 0.5px;
    }
    .header-brand .brand-icon {
        width: 36px;
        height: 36px;
        border-radius: 8px;
        background: var(--primary);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.1rem;
        flex-shrink: 0;
        transition: all var(--transition);
    }
    .site-header.shrink .header-brand .brand-icon {
        width: 30px;
        height: 30px;
        font-size: 0.95rem;
        border-radius: 6px;
    }
    .header-brand .brand-suffix {
        font-size: 0.75rem;
        font-weight: 500;
        color: var(--text-muted);
        letter-spacing: 0;
        margin-left: 2px;
    }
    .header-brand-actions {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .header-search-btn {
        width: 42px;
        height: 42px;
        border-radius: 50%;
        border: 1px solid var(--border);
        background: #fff;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all var(--transition);
        font-size: 0.95rem;
    }
    .header-search-btn:hover {
        background: var(--primary-bg);
        color: var(--primary);
        border-color: var(--primary-border);
    }
    .header-login-btn {
        padding: 8px 18px;
        border-radius: var(--radius-btn);
        border: 1px solid var(--primary-border);
        background: var(--primary-bg);
        color: var(--primary);
        font-weight: 600;
        font-size: 0.9rem;
        cursor: pointer;
        transition: all var(--transition);
        white-space: nowrap;
    }
    .header-login-btn:hover {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
    }
    .header-channel-row {
        border-top: 1px solid var(--border);
        padding: 10px 0;
        transition: all var(--transition);
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .site-header.shrink .header-channel-row {
        padding: 6px 0;
    }
    .header-channel-row::-webkit-scrollbar {
        height: 3px;
    }
    .header-channel-row::-webkit-scrollbar-thumb {
        background: var(--border-light);
        border-radius: 3px;
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 32px;
        list-style: none;
        margin: 0;
        padding: 0;
        white-space: nowrap;
        min-width: max-content;
    }
    .main-nav li a {
        color: var(--text-body);
        font-weight: 500;
        font-size: 0.95rem;
        padding: 6px 0;
        border-bottom: 2px solid transparent;
        transition: all var(--transition);
    }
    .main-nav li a:hover {
        color: var(--primary);
    }
    .main-nav li a.active {
        color: var(--primary);
        border-bottom-color: var(--primary);
    }

    /* Mobile menu button */
    .mobile-menu-toggle {
        display: none;
        width: 42px;
        height: 42px;
        border-radius: 8px;
        border: 1px solid var(--border);
        background: #fff;
        color: var(--text-body);
        align-items: center;
        justify-content: center;
        cursor: pointer;
        font-size: 1.2rem;
        transition: all var(--transition);
    }
    .mobile-menu-toggle:hover {
        background: var(--primary-bg);
        color: var(--primary);
        border-color: var(--primary-border);
    }

    /* Breadcrumb */
    .breadcrumb-wrap {
        background: #fff;
        border-bottom: 1px solid var(--border);
        padding: 10px 0;
        margin-top: 120px;
    }
    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 0.9rem;
        color: var(--text-muted);
    }
    .breadcrumb a {
        color: var(--text-muted);
    }
    .breadcrumb a:hover {
        color: var(--primary);
    }
    .breadcrumb .separator {
        color: var(--border-light);
    }
    .breadcrumb .current {
        color: var(--text-dark);
        font-weight: 600;
    }

    /* Category H1 banner */
    .category-hero {
        background: linear-gradient(135deg, var(--primary-bg) 0%, #F8FAFC 55%, #EDF2FF 100%);
        padding: 48px 0 40px;
        border-bottom: 1px solid var(--border);
        position: relative;
        overflow: hidden;
    }
    .category-hero::before {
        content: '';
        position: absolute;
        top: -120px;
        right: -80px;
        width: 360px;
        height: 360px;
        border-radius: 50%;
        background: rgba(37,99,235,0.06);
        pointer-events: none;
    }
    .category-hero::after {
        content: '';
        position: absolute;
        bottom: -140px;
        left: -40px;
        width: 280px;
        height: 280px;
        border-radius: 50%;
        background: rgba(6,182,212,0.05);
        pointer-events: none;
    }
    .category-hero .container {
        position: relative;
        z-index: 1;
    }
    .category-hero h1 {
        font-size: 2rem;
        font-weight: 700;
        color: var(--text-dark);
        margin: 0 0 8px;
        letter-spacing: 0.5px;
    }
    .category-hero .subtitle {
        font-size: 1rem;
        color: var(--text-muted);
        margin: 0;
        max-width: 720px;
    }
    .category-hero .hero-meta {
        display: flex;
        align-items: center;
        gap: 20px;
        margin-top: 16px;
        font-size: 0.85rem;
        color: var(--text-muted);
    }
    .category-hero .hero-meta span {
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .category-hero .hero-meta i {
        color: var(--primary-light);
    }

    /* Section base */
    section {
        padding: var(--section-padding);
    }
    @media (max-width: 640px) {
        section {
            padding: var(--section-padding-mobile);
        }
    }
    .section-header {
        margin-bottom: 36px;
    }
    .section-header h2 {
        font-size: 1.75rem;
        font-weight: 700;
        color: var(--text-dark);
        margin: 0 0 8px;
        letter-spacing: 0.3px;
    }
    .section-header .section-desc {
        font-size: 0.95rem;
        color: var(--text-muted);
        margin: 0;
        max-width: 680px;
    }

    /* Filter bar */
    .filter-bar {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        padding: 16px 24px;
        display: flex;
        align-items: center;
        gap: 16px;
        flex-wrap: wrap;
        box-shadow: var(--card-shadow);
        margin-bottom: 32px;
    }
    .filter-tabs {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }
    .filter-tab {
        padding: 7px 16px;
        border-radius: var(--radius-badge);
        border: 1px solid var(--border);
        background: #fff;
        color: var(--text-body);
        font-size: 0.85rem;
        font-weight: 500;
        cursor: pointer;
        transition: all var(--transition);
        white-space: nowrap;
    }
    .filter-tab:hover {
        background: var(--primary-bg);
        border-color: var(--primary-border);
        color: var(--primary);
    }
    .filter-tab.active {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
    }
    .filter-label {
        font-size: 0.85rem;
        color: var(--text-muted);
        font-weight: 600;
        margin-right: 4px;
    }

    /* Cards grid */
    .cards-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    @media (max-width: 1024px) {
        .cards-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (max-width: 640px) {
        .cards-grid {
            grid-template-columns: 1fr;
        }
    }
    .project-card {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--card-shadow);
        transition: all var(--transition);
        display: flex;
        flex-direction: column;
    }
    .project-card:hover {
        box-shadow: var(--card-shadow-hover);
        border-color: var(--primary-border);
        transform: translateY(-3px);
    }
    .project-card .card-cover {
        position: relative;
        aspect-ratio: 16/9;
        background: var(--secondary-bg);
        overflow: hidden;
    }
    .project-card .card-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.35s ease;
    }
    .project-card:hover .card-cover img {
        transform: scale(1.04);
    }
    .project-card .card-tag {
        position: absolute;
        top: 12px;
        left: 12px;
        background: rgba(15,23,42,0.82);
        color: #fff;
        padding: 4px 12px;
        border-radius: var(--radius-badge);
        font-size: 0.75rem;
        font-weight: 500;
        letter-spacing: 0.3px;
        backdrop-filter: blur(4px);
    }
    .project-card .card-body {
        padding: 20px 20px 18px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }
    .project-card .card-date {
        font-size: 0.75rem;
        color: var(--text-muted);
        margin-bottom: 8px;
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .project-card .card-title {
        font-size: 1.05rem;
        font-weight: 700;
        color: var(--text-dark);
        margin: 0 0 8px;
        line-height: 1.4;
    }
    .project-card .card-summary {
        font-size: 0.85rem;
        color: var(--text-muted);
        line-height: 1.7;
        margin: 0 0 16px;
        flex: 1;
    }
    .project-card .read-more-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 0.85rem;
        font-weight: 600;
        color: var(--primary);
        transition: all var(--transition);
    }
    .project-card .read-more-link:hover {
        color: var(--primary-dark);
        gap: 10px;
    }

    /* View more button */
    .view-more-wrap {
        text-align: center;
        margin-top: 36px;
    }
    .btn-view-more {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 12px 28px;
        border-radius: var(--radius-btn);
        background: #fff;
        border: 1px solid var(--primary-border);
        color: var(--primary);
        font-weight: 600;
        font-size: 0.95rem;
        cursor: pointer;
        transition: all var(--transition);
    }
    .btn-view-more:hover {
        background: var(--primary-bg);
        border-color: var(--primary);
        box-shadow: 0 4px 12px rgba(37,99,235,0.15);
    }

    /* Data snapshot */
    .data-snapshot {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        padding: 32px 36px;
        box-shadow: var(--card-shadow);
    }
    .data-snapshot-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }
    @media (max-width: 768px) {
        .data-snapshot-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
    }
    .snapshot-item {
        text-align: center;
    }
    .snapshot-item .snapshot-number {
        font-size: 2.4rem;
        font-weight: 700;
        color: var(--primary);
        letter-spacing: 0.5px;
        margin-bottom: 4px;
    }
    .snapshot-item .snapshot-label {
        font-size: 0.85rem;
        color: var(--text-muted);
        font-weight: 500;
    }
    .snapshot-item .snapshot-desc {
        font-size: 0.8rem;
        color: var(--text-muted);
        margin-top: 4px;
    }

    /* Tag cloud */
    .tag-cloud {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    .tag-cloud .tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 16px;
        border-radius: var(--radius-badge);
        background: #fff;
        border: 1px solid var(--border);
        color: var(--text-body);
        font-size: 0.85rem;
        font-weight: 500;
        transition: all var(--transition);
    }
    .tag-cloud .tag:hover {
        background: var(--primary-bg);
        border-color: var(--primary-border);
        color: var(--primary);
    }
    .tag-cloud .tag .tag-count {
        font-size: 0.75rem;
        color: var(--text-muted);
        background: var(--secondary-bg);
        border-radius: var(--radius-badge);
        padding: 2px 8px;
    }

    /* Category entry cards */
    .category-entry-grid {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: 16px;
    }
    @media (max-width: 1024px) {
        .category-entry-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }
    @media (max-width: 640px) {
        .category-entry-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
    }
    .category-entry-card {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        padding: 20px 18px;
        text-align: center;
        box-shadow: var(--card-shadow);
        transition: all var(--transition);
        display: block;
    }
    .category-entry-card:hover {
        box-shadow: var(--card-shadow-hover);
        border-color: var(--primary-border);
        transform: translateY(-3px);
    }
    .category-entry-card .entry-icon {
        width: 44px;
        height: 44px;
        border-radius: 10px;
        background: var(--primary-bg);
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 10px;
        font-size: 1.2rem;
        transition: all var(--transition);
    }
    .category-entry-card:hover .entry-icon {
        background: var(--primary);
        color: #fff;
    }
    .category-entry-card .entry-name {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--text-dark);
    }

    /* FAQ */
    .faq-section {
        background: #fff;
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
    }
    .faq-list {
        max-width: 800px;
        margin: 0 auto;
    }
    .faq-item {
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        margin-bottom: 12px;
        background: #fff;
        transition: all var(--transition);
        overflow: hidden;
    }
    .faq-item:hover {
        border-color: var(--primary-border);
        box-shadow: 0 2px 8px rgba(15,23,42,0.06);
    }
    .faq-question {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 16px 20px;
        cursor: pointer;
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--text-dark);
        transition: all var(--transition);
    }
    .faq-question .faq-number {
        width: 26px;
        height: 26px;
        border-radius: 50%;
        background: var(--primary-bg);
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.75rem;
        font-weight: 700;
        flex-shrink: 0;
    }
    .faq-question .faq-icon {
        margin-left: auto;
        color: var(--text-muted);
        font-size: 0.85rem;
        transition: transform var(--transition);
    }
    .faq-item.open .faq-question .faq-icon {
        transform: rotate(180deg);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }
    .faq-item.open .faq-answer {
        max-height: 300px;
    }
    .faq-answer-inner {
        padding: 0 20px 18px 58px;
        font-size: 0.85rem;
        color: var(--text-muted);
        line-height: 1.75;
    }

    /* Footer */
    .site-footer {
        background: #0F172A;
        color: rgba(255,255,255,0.75);
        padding: 48px 0 24px;
        margin-top: 0;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
        gap: 32px;
        margin-bottom: 28px;
    }
    @media (max-width: 1024px) {
        .footer-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
    }
    @media (max-width: 640px) {
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
    }
    .footer-brand .brand-name {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.3rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 12px;
    }
    .footer-brand .brand-name i {
        color: var(--primary-light);
        font-size: 1.2rem;
    }
    .footer-brand p {
        font-size: 0.85rem;
        line-height: 1.7;
        color: rgba(255,255,255,0.65);
        margin: 0;
    }
    .footer-col h4 {
        font-size: 0.9rem;
        font-weight: 600;
        color: #fff;
        margin: 0 0 14px;
        letter-spacing: 0.5px;
    }
    .footer-col ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .footer-col ul li {
        margin-bottom: 8px;
    }
    .footer-col ul li a {
        color: rgba(255,255,255,0.65);
        font-size: 0.85rem;
        transition: color var(--transition);
    }
    .footer-col ul li a:hover {
        color: #fff;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.15);
        padding-top: 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 10px;
        font-size: 0.85rem;
    }
    .footer-bottom a {
        color: rgba(255,255,255,0.65);
        transition: color var(--transition);
    }
    .footer-bottom a:hover {
        color: #fff;
    }
    @media (max-width: 640px) {
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
        }
    }

    /* Responsive navigation */
    @media (max-width: 768px) {
        .mobile-menu-toggle {
            display: flex;
        }
        .header-brand-actions .header-login-btn {
            display: none;
        }
        .header-channel-row {
            display: none;
            padding: 0;
            border-top: none;
        }
        .header-channel-row.nav-open {
            display: block;
            border-top: 1px solid var(--border);
            padding: 12px 0;
        }
        .main-nav {
            flex-direction: column;
            align-items: flex-start;
            gap: 0;
            min-width: unset;
        }
        .main-nav li {
            width: 100%;
        }
        .main-nav li a {
            display: block;
            padding: 10px 0;
            border-bottom: none;
            font-size: 1rem;
        }
        .main-nav li a.active {
            border-bottom: none;
            background: var(--primary-bg);
            padding-left: 12px;
            border-radius: 6px;
        }
        .site-header.shrink .header-brand-row {
            padding: 10px 0;
        }
        .breadcrumb-wrap {
            margin-top: 68px;
        }
    }
    @media (max-width: 640px) {
        .header-brand {
            font-size: 1.1rem;
        }
        .header-brand .brand-suffix {
            display: none;
        }
        .category-hero h1 {
            font-size: 1.5rem;
        }
        .category-hero {
            padding: 32px 0 28px;
        }
    }

/* roulang page: category5 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-dark: #1E40AF;
            --primary-bg: #EFF6FF;
            --primary-border: #BFDBFE;
            --secondary-bg: #F1F5F9;
            --secondary-bg-alt: #F8FAFC;
            --cyan: #06B6D4;
            --violet: #7C3AED;
            --text-dark: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-light: #CBD5E1;
            --card-shadow: 0 4px 12px rgba(15,23,42,0.06);
            --card-shadow-hover: 0 8px 24px rgba(15,23,42,0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
            --transition: 0.25s ease;
            --nav-height: auto;
            --nav-shrink-height: 60px;
            --hero-min-height: 560px;
            --container-max: 1200px;
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background-color: var(--secondary-bg-alt);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            padding-top: 118px;
        }

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: 0 1px 4px rgba(15,23,42,0.06);
            transition: box-shadow var(--transition), height var(--transition);
        }

        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            transition: padding var(--transition);
        }

        .header-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            line-height: 1;
        }

        .header-brand .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .header-brand .brand-suffix {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0;
            margin-left: 2px;
            display: block;
            line-height: 1.2;
        }

        .header-brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-search-btn {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
            font-size: 0.95rem;
        }

        .header-search-btn:hover {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-border);
        }

        .header-login-btn {
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary-border);
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .header-login-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .header-channel-row {
            border-top: 1px solid var(--border);
            padding: 10px 0;
            transition: all var(--transition);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .header-channel-row::-webkit-scrollbar {
            height: 3px;
        }

        .header-channel-row::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 3px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
            white-space: nowrap;
            min-width: max-content;
        }

        .main-nav li a {
            color: var(--text-body);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            display: inline-block;
        }

        .main-nav li a:hover {
            color: var(--primary);
        }

        .main-nav li a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .mobile-hamburger {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-dark);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1.2rem;
            transition: all var(--transition);
        }

        .mobile-hamburger:hover {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-border);
        }

        /* Shrunk header state */
        .site-header.shrunk .header-brand-row {
            padding: 8px 0;
        }

        .site-header.shrunk .header-brand {
            font-size: 1.1rem;
        }

        .site-header.shrunk .header-brand .brand-icon {
            width: 30px;
            height: 30px;
            font-size: 0.9rem;
        }

        .site-header.shrunk .header-brand .brand-suffix {
            display: none;
        }

        .site-header.shrunk .header-channel-row {
            padding: 6px 0;
        }

        .site-header.shrunk .main-nav li a {
            font-size: 0.88rem;
            padding: 4px 0;
        }

        /* Mobile navigation */
        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 0;
        }

        .mobile-menu.open {
            display: block;
        }

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

        .mobile-menu ul li a {
            display: block;
            padding: 12px 16px;
            color: var(--text-body);
            font-weight: 500;
            font-size: 1rem;
            border-bottom: 1px solid var(--secondary-bg);
            transition: all var(--transition);
        }

        .mobile-menu ul li a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .mobile-menu ul li a.active {
            color: var(--primary);
            font-weight: 700;
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            background: #ffffff;
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 0.88rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: "/";
            color: var(--border-light);
            font-size: 0.8rem;
        }

        .breadcrumb li a {
            color: var(--text-muted);
        }

        .breadcrumb li a:hover {
            color: var(--primary);
        }

        .breadcrumb li.current {
            color: var(--text-dark);
            font-weight: 600;
        }

        /* Category Banner */
        .category-banner {
            position: relative;
            padding: 48px 0;
            overflow: hidden;
            background: #ffffff;
            border-bottom: 1px solid var(--border);
        }

        .category-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/3ac315a8ef1f6ef4.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }

        .category-banner::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(37,99,235,0.04) 0%, rgba(6,182,212,0.04) 100%);
            z-index: 0;
        }

        .category-banner .container {
            position: relative;
            z-index: 1;
        }

        .category-banner-content {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .category-banner-text {
            max-width: 720px;
        }

        .category-banner-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .category-banner h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 10px 0;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }

        .category-banner p {
            font-size: 1rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
            max-width: 600px;
        }

        .category-banner-stats {
            display: flex;
            gap: 28px;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 16px 24px;
            box-shadow: var(--card-shadow);
            flex-shrink: 0;
        }

        .category-banner-stat {
            text-align: center;
        }

        .category-banner-stat .stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .category-banner-stat .stat-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        /* Filter Bar */
        .filter-bar-wrap {
            background: #ffffff;
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }

        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .filter-tabs {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-tab {
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-muted);
            font-size: 0.88rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-tab:hover {
            border-color: var(--primary-border);
            color: var(--primary);
            background: var(--primary-bg);
        }

        .filter-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        .filter-sort select {
            padding: 6px 12px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-body);
            font-size: 0.88rem;
            cursor: pointer;
            font-family: inherit;
            transition: border-color var(--transition);
        }

        .filter-sort select:focus {
            border-color: var(--primary);
            outline: none;
        }

        /* News Grid */
        .news-grid-section {
            padding: 48px 0 32px;
            background: var(--secondary-bg-alt);
        }

        .card-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        @media (max-width: 768px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .news-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .news-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--secondary-bg);
        }

        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .news-card:hover .news-card-img img {
            transform: scale(1.03);
        }

        .news-card-img .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            background: rgba(255,255,255,0.92);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            backdrop-filter: blur(4px);
        }

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

        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .news-card-meta i {
            color: var(--cyan);
            font-size: 0.68rem;
        }

        .news-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 10px 0;
            line-height: 1.4;
        }

        .news-card h3 a {
            color: var(--text-dark);
            transition: color var(--transition);
        }

        .news-card h3 a:hover {
            color: var(--primary);
        }

        .news-card-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px 0;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
            align-self: flex-start;
        }

        .news-card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition);
        }

        .news-card-link:hover {
            color: var(--primary-dark);
        }

        .news-card-link:hover i {
            transform: translateX(3px);
        }

        /* Load More */
        .load-more-wrap {
            padding: 24px 0 56px;
            text-align: center;
            background: var(--secondary-bg-alt);
        }

        .load-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary-border);
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
        }

        .load-more-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .load-more-btn i {
            font-size: 0.85rem;
        }

        /* Data Snapshot */
        .data-snapshot-section {
            padding: var(--section-padding);
            background: #ffffff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

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

        .section-header .section-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }

        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px 0;
            line-height: 1.3;
        }

        .section-header p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin: 0;
        }

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

        @media (max-width: 768px) {
            .snapshot-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        .snapshot-card {
            background: var(--secondary-bg-alt);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition);
        }

        .snapshot-card:hover {
            border-color: var(--primary-border);
            box-shadow: var(--card-shadow);
        }

        .snapshot-num {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .snapshot-label {
            font-size: 0.9rem;
            color: var(--text-body);
            font-weight: 600;
            margin-top: 6px;
        }

        .snapshot-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 6px;
            line-height: 1.6;
        }

        /* Tag Cloud */
        .tag-cloud-section {
            padding: var(--section-padding);
            background: var(--secondary-bg-alt);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }

        .tag-pill {
            display: inline-block;
            padding: 8px 18px;
            border-radius: var(--radius-badge);
            background: #ffffff;
            border: 1px solid var(--border);
            color: var(--text-body);
            font-size: 0.88rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
        }

        .tag-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-bg);
        }

        .tag-pill.hot {
            background: var(--primary-bg);
            border-color: var(--primary-border);
            color: var(--primary);
            font-weight: 600;
        }

        /* Category Entry */
        .category-entry-section {
            padding: var(--section-padding);
            background: #ffffff;
            border-top: 1px solid var(--border);
        }

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

        @media (max-width: 1024px) {
            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .category-entry-grid {
                grid-template-columns: 1fr;
            }
        }

        .category-entry-card {
            background: var(--secondary-bg-alt);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition);
            display: block;
        }

        .category-entry-card:hover {
            border-color: var(--primary-border);
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-2px);
        }

        .category-entry-card .entry-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin: 0 auto 12px;
            transition: all var(--transition);
        }

        .category-entry-card:hover .entry-icon {
            background: var(--primary-dark);
            transform: scale(1.05);
        }

        .category-entry-card .entry-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .category-entry-card .entry-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: rgba(255,255,255,0.85);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .footer-brand .brand-name {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .footer-brand .brand-name i {
            color: var(--primary-light);
            font-size: 1rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.65);
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 14px 0;
            letter-spacing: 0.3px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255,255,255,0.65);
            font-size: 0.85rem;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0;
            font-size: 0.78rem;
            color: rgba(255,255,255,0.5);
        }

        .footer-bottom a {
            color: rgba(255,255,255,0.5);
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* Responsive adjustments */
        @media (max-width: 1024px) {
            body {
                padding-top: 106px;
            }
            .category-banner h1 {
                font-size: 1.8rem;
            }
            .category-banner-stats {
                gap: 16px;
                padding: 12px 16px;
            }
            .category-banner-stat .stat-num {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 62px;
            }
            .header-brand-row {
                padding: 10px 0;
            }
            .header-brand {
                font-size: 1.1rem;
            }
            .header-brand .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .header-brand .brand-suffix {
                display: none;
            }
            .header-brand-actions .header-login-btn {
                display: none;
            }
            .mobile-hamburger {
                display: flex;
            }
            .header-channel-row {
                display: none;
            }
            .header-channel-row.mobile-visible {
                display: block;
                border-top: 1px solid var(--border);
                padding: 8px 0;
            }
            .main-nav {
                gap: 20px;
                min-width: max-content;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding: 4px 0;
            }
            .main-nav li a {
                font-size: 0.88rem;
            }
            .header-brand-actions .header-search-btn {
                width: 36px;
                height: 36px;
                font-size: 0.85rem;
            }
            .category-banner {
                padding: 32px 0;
            }
            .category-banner h1 {
                font-size: 1.5rem;
            }
            .category-banner p {
                font-size: 0.9rem;
            }
            .category-banner-content {
                flex-direction: column;
                gap: 16px;
            }
            .category-banner-stats {
                width: 100%;
                justify-content: space-around;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .news-card-body {
                padding: 16px 18px 18px;
            }
            .news-card h3 {
                font-size: 1rem;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        @media (max-width: 640px) {
            :root {
                --section-padding: 48px 0;
            }
            body {
                padding-top: 58px;
            }
            .header-brand-row {
                padding: 8px 0;
            }
            .header-brand {
                font-size: 1rem;
            }
            .header-brand .brand-icon {
                width: 28px;
                height: 28px;
                font-size: 0.8rem;
            }
            .category-banner {
                padding: 24px 0;
            }
            .category-banner h1 {
                font-size: 1.35rem;
            }
            .category-banner-tag {
                font-size: 0.7rem;
                padding: 3px 10px;
            }
            .news-grid-section {
                padding: 32px 0 20px;
            }
            .load-more-wrap {
                padding: 16px 0 40px;
            }
            .load-more-btn {
                padding: 10px 24px;
                font-size: 0.88rem;
            }
            .snapshot-grid {
                gap: 12px;
            }
            .snapshot-card {
                padding: 20px 16px;
            }
            .snapshot-num {
                font-size: 1.8rem;
            }
            .category-entry-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .category-entry-card {
                padding: 18px 16px;
            }
            .tag-cloud {
                gap: 8px;
            }
            .tag-pill {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }