/* roulang page: index */
:root {
            --primary: #D42B2B;
            --primary-dark: #A61C1C;
            --primary-light: #FF5252;
            --secondary: #1C1C2E;
            --secondary-light: #2A2A42;
            --accent: #FF5722;
            --accent-light: #FF8A65;
            --bg: #F5F5F7;
            --bg-white: #FFFFFF;
            --bg-dark: #1C1C2E;
            --bg-card: #FFFFFF;
            --text: #1A1A1A;
            --text-secondary: #5A5A6E;
            --text-light: #8E8E9E;
            --text-white: #FFFFFF;
            --border: #E8E8EE;
            --border-light: #F0F0F5;
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 50px;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.16);
            --shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.18);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-fast: 0.15s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
            --section-gap: 80px;
            --section-gap-sm: 50px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        input {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (min-width: 1400px) {
            .container {
                max-width: 1280px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
            flex-wrap: nowrap;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--secondary);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.3px;
        }
        .logo-link:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
            letter-spacing: -0.5px;
        }
        .nav-search-wrap {
            flex: 1;
            max-width: 420px;
            min-width: 180px;
            position: relative;
        }
        .nav-search-wrap .search-input {
            width: 100%;
            height: 44px;
            border-radius: var(--radius-full);
            border: 2px solid var(--border);
            background: var(--bg);
            padding: 0 48px 0 20px;
            font-size: 0.95rem;
            color: var(--text);
            outline: none;
            transition: all var(--transition);
        }
        .nav-search-wrap .search-input:focus {
            border-color: var(--primary);
            background: var(--bg-white);
            box-shadow: 0 0 0 4px rgba(212, 43, 43, 0.08);
        }
        .nav-search-wrap .search-input::placeholder {
            color: var(--text-light);
        }
        .nav-search-wrap .search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            border: none;
        }
        .nav-search-wrap .search-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-50%) scale(1.05);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .nav-links .nav-link-item {
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: -0.2px;
        }
        .nav-links .nav-link-item:hover {
            color: var(--primary);
            background: rgba(212, 43, 43, 0.05);
        }
        .nav-links .nav-link-item.active {
            color: var(--primary);
            background: rgba(212, 43, 43, 0.1);
            font-weight: 700;
        }
        .nav-cta-btn {
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.9rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff !important;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(212, 43, 43, 0.3);
            letter-spacing: -0.2px;
        }
        .nav-cta-btn:hover {
            box-shadow: 0 6px 22px rgba(212, 43, 43, 0.45);
            transform: translateY(-1px);
            color: #fff !important;
        }
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--border);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--text-secondary);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .mobile-toggle:hover {
            background: var(--bg);
            border-color: var(--primary);
            color: var(--primary);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 1049;
            flex-direction: column;
            padding: 24px 20px;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu .mobile-search-wrap {
            position: relative;
            margin-bottom: 12px;
        }
        .mobile-menu .mobile-search-wrap input {
            width: 100%;
            height: 48px;
            border-radius: var(--radius-full);
            border: 2px solid var(--border);
            background: var(--bg);
            padding: 0 50px 0 18px;
            font-size: 1rem;
            outline: none;
        }
        .mobile-menu .mobile-search-wrap input:focus {
            border-color: var(--primary);
        }
        .mobile-menu .mobile-search-wrap button {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            border: none;
            font-size: 1rem;
        }
        .mobile-menu .mobile-nav-link {
            display: block;
            padding: 14px 20px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .mobile-menu .mobile-nav-link.active {
            color: var(--primary);
            background: rgba(212, 43, 43, 0.08);
        }
        .mobile-menu .mobile-cta {
            display: block;
            text-align: center;
            padding: 14px;
            border-radius: var(--radius-full);
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff !important;
            margin-top: 8px;
            font-size: 1rem;
        }

        @media (max-width: 1024px) {
            .nav-search-wrap {
                max-width: 250px;
            }
            .nav-links .nav-link-item {
                padding: 8px 12px;
                font-size: 0.9rem;
            }
            .nav-cta-btn {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 768px) {
            .nav-search-wrap {
                display: none;
            }
            .nav-links {
                display: none;
            }
            .nav-cta-btn {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .logo-link {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
            :root {
                --nav-height: 60px;
            }
        }
        @media (max-width: 520px) {
            .logo-link {
                font-size: 1rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
                border-radius: 7px;
            }
            .container {
                padding: 0 14px;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-color: var(--secondary);
            min-height: 560px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(28, 28, 46, 0.88) 0%,
                    rgba(28, 28, 46, 0.7) 40%,
                    rgba(212, 43, 43, 0.25) 100%);
            z-index: 1;
        }
        .hero-glow {
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212, 43, 43, 0.35) 0%, transparent 70%);
            top: -100px;
            right: -120px;
            z-index: 1;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
            color: var(--text-white);
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 18px;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, #FF5252, #FF8A65);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .btn-hero-primary {
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border: none;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(212, 43, 43, 0.4);
            letter-spacing: -0.2px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-hero-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(212, 43, 43, 0.55);
            color: #fff;
        }
        .btn-hero-outline {
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.45);
            transition: all var(--transition);
            letter-spacing: -0.2px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-hero-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }
        .hero-countdown {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: var(--radius-full);
            background: rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(6px);
            font-weight: 700;
            font-size: 0.9rem;
            color: #FF8A65;
            border: 1px solid rgba(255, 138, 101, 0.35);
        }
        .hero-countdown .count-num {
            font-size: 1.3rem;
            color: #fff;
            font-weight: 800;
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: 440px;
            }
            .hero-title {
                font-size: 2.1rem;
                letter-spacing: -0.5px;
            }
            .hero-desc {
                font-size: 1rem;
                max-width: 100%;
            }
            .hero-actions {
                gap: 10px;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 520px) {
            .hero-section {
                min-height: 380px;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 5px 12px;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: var(--section-gap-sm) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: rgba(212, 43, 43, 0.08);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 10px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ========== FEATURE CARDS ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            box-shadow: var(--shadow-xs);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .feature-card .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.5rem;
            background: linear-gradient(135deg, rgba(212, 43, 43, 0.1), rgba(255, 87, 34, 0.1));
            color: var(--primary);
        }
        .feature-card h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--secondary);
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .feature-card {
                padding: 22px 18px;
            }
        }

        /* ========== CATEGORY CARD ========== */
        .category-card-large {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .category-card-large:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .category-card-large .cat-img-wrap {
            position: relative;
            min-height: 300px;
            overflow: hidden;
        }
        .category-card-large .cat-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card-large:hover .cat-img-wrap img {
            transform: scale(1.05);
        }
        .category-card-large .cat-body {
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .category-card-large .cat-badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            background: rgba(212, 43, 43, 0.1);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.4px;
            margin-bottom: 14px;
            width: fit-content;
        }
        .category-card-large h3 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 10px;
            letter-spacing: -0.4px;
        }
        .category-card-large p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 20px;
        }
        .btn-cat {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.95rem;
            background: var(--secondary);
            color: #fff;
            transition: all var(--transition);
            width: fit-content;
            letter-spacing: -0.2px;
        }
        .btn-cat:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(212, 43, 43, 0.3);
            transform: translateY(-1px);
        }
        @media (max-width: 768px) {
            .category-card-large {
                grid-template-columns: 1fr;
            }
            .category-card-large .cat-img-wrap {
                min-height: 200px;
            }
            .category-card-large .cat-body {
                padding: 28px 22px;
            }
            .category-card-large h3 {
                font-size: 1.3rem;
            }
        }

        /* ========== CMS LIST ========== */
        .cms-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .cms-list-item {
            display: flex;
            gap: 16px;
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 20px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            box-shadow: var(--shadow-xs);
            align-items: flex-start;
        }
        .cms-list-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .cms-list-thumb {
            width: 100px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg);
        }
        .cms-list-info {
            flex: 1;
            min-width: 0;
        }
        .cms-list-info h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
            line-height: 1.35;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cms-list-info .cms-meta {
            display: flex;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-light);
            flex-wrap: wrap;
            align-items: center;
        }
        .cms-list-info .cms-meta .cms-cat-tag {
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: rgba(212, 43, 43, 0.08);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.75rem;
        }
        .cms-empty {
            text-align: center;
            padding: 40px;
            color: var(--text-light);
            font-size: 0.95rem;
            grid-column: 1 / -1;
        }
        @media (max-width: 768px) {
            .cms-list-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .cms-list-item {
                padding: 16px;
                gap: 12px;
            }
            .cms-list-thumb {
                width: 80px;
                height: 64px;
            }
            .cms-list-info h4 {
                font-size: 0.9rem;
            }
        }

        /* ========== STATS ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .stat-card .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -1px;
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-card .stat-num {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-num {
                font-size: 1.5rem;
            }
            .stat-card .stat-label {
                font-size: 0.8rem;
            }
        }

        /* ========== HOT CARDS ========== */
        .hot-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .hot-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition);
        }
        .hot-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .hot-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .hot-card:hover .hot-card-img {
            transform: scale(1.04);
        }
        .hot-card-body {
            padding: 20px;
        }
        .hot-card-body h4 {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--secondary);
            margin-bottom: 6px;
        }
        .hot-card-body p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }
        .hot-card-body .hot-tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            background: rgba(255, 87, 34, 0.1);
            color: var(--accent);
            font-weight: 600;
            font-size: 0.75rem;
            margin-bottom: 10px;
        }
        @media (max-width: 1024px) {
            .hot-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .hot-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .hot-card-img {
                height: 180px;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-xs);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            background: none;
            border: none;
            cursor: pointer;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(212, 43, 43, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--primary);
            transition: all var(--transition-fast);
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.65;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        @media (max-width: 520px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212, 43, 43, 0.3) 0%, transparent 70%);
            top: -60px;
            right: -60px;
            pointer-events: none;
        }
        .cta-banner h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
            letter-spacing: -0.5px;
        }
        .cta-banner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            margin-bottom: 26px;
            position: relative;
            z-index: 1;
        }
        .cta-banner .btn-cta-large {
            padding: 14px 36px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border: none;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(212, 43, 43, 0.4);
            position: relative;
            z-index: 1;
            letter-spacing: -0.2px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-banner .btn-cta-large:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(212, 43, 43, 0.55);
            color: #fff;
        }
        @media (max-width: 768px) {
            .cta-banner {
                padding: 36px 22px;
            }
            .cta-banner h2 {
                font-size: 1.5rem;
            }
            .cta-banner p {
                font-size: 0.9rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.55);
            max-width: 260px;
        }
        .footer-col h5 {
            font-weight: 700;
            font-size: 0.9rem;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .site-footer {
                padding: 36px 0 20px;
            }
        }

        /* ========== UTILITY ========== */
        .text-primary {
            color: var(--primary) !important;
        }
        .bg-light-alt {
            background: #FAFAFC;
        }
        .divider {
            height: 1px;
            background: var(--border-light);
            margin: 0;
            border: none;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: 50px;
                --section-gap-sm: 36px;
            }
        }

/* roulang page: article */
:root {
            --primary: #FF4D2E;
            --primary-dark: #D93A1E;
            --primary-light: #FFF0EC;
            --secondary: #1A1A2E;
            --secondary-light: #252540;
            --accent: #FFB800;
            --accent-light: #FFF7E0;
            --bg: #F5F5F7;
            --bg-white: #FFFFFF;
            --bg-dark: #0F0F1A;
            --text: #1D1D1F;
            --text-secondary: #555561;
            --text-weak: #8E8E98;
            --text-light: #B0B0B8;
            --border: #E5E7EB;
            --border-light: #F0F0F3;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1240px;
            --max-width-narrow: 860px;
            --nav-height: 68px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: var(--max-width-narrow);
        }

        /* ===== HEADER & NAV ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            height: var(--nav-height);
            gap: 20px;
        }

        .header-logo {
            flex-shrink: 0;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 9px;
            transition: color var(--transition-fast);
        }

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

        .header-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .header-search-wrap {
            flex: 1;
            max-width: 440px;
            position: relative;
        }

        .header-search-wrap input {
            width: 100%;
            height: 44px;
            border: 2px solid var(--border);
            border-radius: var(--radius-full);
            padding: 0 48px 0 20px;
            font-size: 0.95rem;
            color: var(--text);
            background: var(--bg);
            transition: all var(--transition-base);
        }

        .header-search-wrap input:focus {
            border-color: var(--primary);
            background: var(--bg-white);
            box-shadow: 0 0 0 4px rgba(255,77,46,0.08);
        }

        .header-search-wrap input::placeholder {
            color: var(--text-weak);
        }

        .header-search-wrap .search-btn {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }

        .header-search-wrap .search-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-50%) scale(1.04);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-link-item:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-link-item.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
        }

        .nav-link-item.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        .mobile-menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--border);
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--text-secondary);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .mobile-search-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--text-secondary);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

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

        /* ===== BREADCRUMB ===== */
        .breadcrumb-wrap {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.875rem;
            color: var(--text-weak);
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .sep {
            font-size: 0.7rem;
            color: var(--text-light);
        }

        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }

        /* ===== ARTICLE MAIN ===== */
        .article-page {
            flex: 1;
            padding: 40px 0 60px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 36px;
            align-items: start;
        }

        .article-main {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
        }

        .article-cover {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: linear-gradient(135deg, #1a1a2e 0%, #252540 40%, #1a1a2e 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

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

        .article-cover-placeholder {
            width: 100%;
            aspect-ratio: 16 / 9;
            background: linear-gradient(135deg, #1a1a2e 0%, #252540 40%, #1a1a2e 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.3);
            font-size: 4rem;
        }

        .article-body {
            padding: 36px 40px 44px;
        }

        .article-meta-top {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 16px;
        }

        .article-category-tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: 0.02em;
        }

        .article-date {
            font-size: 0.85rem;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-date i {
            font-size: 0.8rem;
        }

        .article-read-time {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        .article-title {
            font-size: 1.85rem;
            font-weight: 800;
            line-height: 1.35;
            color: var(--secondary);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .article-excerpt {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding: 16px 20px;
            background: var(--bg);
            border-radius: var(--radius-md);
            border-left: 3px solid var(--primary);
            margin-bottom: 28px;
        }

        .article-content {
            font-size: 1rem;
            line-height: 1.85;
            color: var(--text);
        }

        .article-content h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--secondary);
            margin: 32px 0 14px;
            letter-spacing: -0.01em;
        }

        .article-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--secondary);
            margin: 24px 0 10px;
        }

        .article-content p {
            margin-bottom: 14px;
        }

        .article-content ul,
        .article-content ol {
            margin: 10px 0 18px 20px;
            padding-left: 8px;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content li {
            margin-bottom: 6px;
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 20px 0;
        }

        .article-content blockquote {
            border-left: 3px solid var(--primary);
            padding: 14px 20px;
            margin: 18px 0;
            background: var(--primary-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

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

        .article-cta-box {
            margin-top: 36px;
            padding: 28px 30px;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .article-cta-box .cta-text {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            letter-spacing: -0.01em;
        }

        .article-cta-box .cta-text span {
            display: block;
            font-size: 0.85rem;
            font-weight: 400;
            opacity: 0.75;
            margin-top: 4px;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(255,77,46,0.35);
        }

        .btn-cta-primary:hover {
            background: #ff5c40;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255,77,46,0.4);
            color: #fff;
        }

        /* ===== NOT FOUND ===== */
        .not-found-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 60px 40px;
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
        }

        .not-found-card .nf-icon {
            font-size: 4rem;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .not-found-card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .not-found-card p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .not-found-card .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            border-radius: var(--radius-full);
            transition: all var(--transition-base);
        }

        .not-found-card .btn-back:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

        /* ===== SIDEBAR ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: calc(var(--nav-height) + 24px);
        }

        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 24px;
        }

        .sidebar-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h4 i {
            color: var(--primary);
            font-size: 0.9rem;
        }

        .sidebar-post-item {
            display: flex;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }

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

        .sidebar-post-item:hover .sidebar-post-title {
            color: var(--primary);
        }

        .sidebar-post-thumb {
            width: 64px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg);
        }

        .sidebar-post-info {
            flex: 1;
            min-width: 0;
        }

        .sidebar-post-title {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .sidebar-post-date {
            font-size: 0.75rem;
            color: var(--text-weak);
            margin-top: 4px;
        }

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

        .sidebar-tag {
            display: inline-flex;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--bg);
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .sidebar-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .sidebar-download-card {
            background: linear-gradient(135deg, var(--primary), #ff6b4d);
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            box-shadow: 0 8px 28px rgba(255,77,46,0.3);
        }

        .sidebar-download-card .sd-icon {
            font-size: 2.5rem;
            margin-bottom: 10px;
        }

        .sidebar-download-card h4 {
            color: #fff;
            border: none;
            padding: 0;
            margin-bottom: 8px;
            justify-content: center;
            font-size: 1.05rem;
        }

        .sidebar-download-card p {
            font-size: 0.85rem;
            opacity: 0.9;
            margin-bottom: 16px;
        }

        .btn-download-side {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            transition: all var(--transition-base);
        }

        .btn-download-side:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.2);
            color: var(--primary-dark);
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--secondary);
            color: #c5c5d0;
            padding: 50px 0 0;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .footer-logo {
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.7;
            color: #9d9daa;
        }

        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 0.875rem;
            color: #9d9daa;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 0.825rem;
            color: #7a7a88;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .sidebar-download-card {
                grid-column: 1 / -1;
            }
            .header-search-wrap {
                max-width: 300px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }
            .header-inner {
                gap: 10px;
            }
            .header-logo {
                font-size: 1.1rem;
            }
            .header-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .header-search-wrap {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                max-width: 100%;
                padding: 10px 16px;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border);
                z-index: 999;
            }
            .header-search-wrap.mobile-visible {
                display: block;
            }
            .header-search-wrap input {
                height: 42px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border);
                padding: 8px 16px 16px;
                gap: 4px;
                z-index: 998;
                box-shadow: var(--shadow-md);
            }
            .nav-links.mobile-visible {
                display: flex;
            }
            .nav-link-item {
                width: 100%;
                justify-content: center;
                padding: 11px 16px;
                border-radius: var(--radius-md);
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .mobile-search-toggle {
                display: flex;
            }
            .article-body {
                padding: 24px 20px 28px;
            }
            .article-title {
                font-size: 1.4rem;
            }
            .article-cta-box {
                flex-direction: column;
                text-align: center;
                padding: 22px 20px;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .article-body {
                padding: 18px 14px 22px;
            }
            .article-title {
                font-size: 1.2rem;
            }
            .article-excerpt {
                font-size: 0.9rem;
                padding: 12px 14px;
            }
            .article-meta-top {
                gap: 8px;
            }
            .not-found-card {
                padding: 40px 20px;
                margin: 0 10px;
            }
            .sidebar-card {
                padding: 18px;
            }
            .header-logo {
                font-size: 1rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #6C5CE7;
            --primary-dark: #5A4BD1;
            --primary-light: #A29BFE;
            --primary-glow: rgba(108, 92, 231, 0.25);
            --accent: #00D2D3;
            --accent-dark: #00B5B6;
            --accent-glow: rgba(0, 210, 211, 0.3);
            --bg: #0F0A1A;
            --bg-secondary: #1A1128;
            --bg-card: #1E1530;
            --bg-card-hover: #261D3A;
            --bg-elevated: #2A1F42;
            --text: #F0EDF5;
            --text-secondary: #B8B0C8;
            --text-muted: #7A7195;
            --border: #2D2345;
            --border-light: #3D3058;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
            --shadow: 0 4px 20px rgba(0,0,0,0.3);
            --shadow-lg: 0 8px 40px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 30px var(--primary-glow);
            --shadow-accent: 0 0 25px var(--accent-glow);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --container: 1200px;
            --container-sm: 960px;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
        }

        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
        body{font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.7;min-height:100vh;overflow-x:hidden}
        a{text-decoration:none;color:inherit;transition:color var(--transition)}
        img{max-width:100%;height:auto;display:block}
        button,input,select,textarea{font-family:inherit;font-size:inherit}
        ul,ol{list-style:none}
        .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
        .container-sm{max-width:var(--container-sm)}
        .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}

        /* Header & Navigation */
        .site-header{position:sticky;top:0;z-index:1000;background:rgba(15,10,26,0.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:all var(--transition)}
        .site-header.scrolled{background:rgba(15,10,26,0.95);box-shadow:0 4px 30px rgba(0,0,0,0.5)}
        .header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:20px}
        .header-logo{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;color:var(--text);white-space:nowrap;letter-spacing:-0.3px}
        .header-logo .logo-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:#fff;flex-shrink:0;box-shadow:var(--shadow-glow)}
        .header-logo span{background:linear-gradient(135deg,#fff 30%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
        .nav-search-wrap{display:flex;align-items:center;gap:16px;flex:1;justify-content:flex-end}
        .nav-links{display:flex;align-items:center;gap:6px}
        .nav-link-item{display:inline-flex;align-items:center;padding:9px 18px;border-radius:var(--radius);font-size:0.95rem;font-weight:600;color:var(--text-secondary);transition:all var(--transition);white-space:nowrap;position:relative}
        .nav-link-item:hover{color:var(--text);background:var(--bg-card)}
        .nav-link-item.active{color:#fff;background:rgba(108,92,231,0.2);box-shadow:inset 0 0 0 1px rgba(108,92,231,0.3)}
        .nav-link-item.active::after{content:'';position:absolute;bottom:-15px;left:50%;transform:translateX(-50%);width:24px;height:3px;background:var(--accent);border-radius:0 0 3px 3px}
        .search-box{position:relative;min-width:200px;max-width:320px}
        .search-box input{width:100%;padding:10px 42px 10px 16px;background:var(--bg-card);border:2px solid var(--border);border-radius:50px;color:var(--text);font-size:0.9rem;outline:none;transition:all var(--transition)}
        .search-box input::placeholder{color:var(--text-muted)}
        .search-box input:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-glow);background:var(--bg-elevated)}
        .search-box .search-icon{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:0.95rem;pointer-events:none;transition:color var(--transition)}
        .search-box input:focus+.search-icon{color:var(--primary-light)}
        .mobile-menu-btn{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer;padding:6px;border-radius:var(--radius-sm);transition:all var(--transition)}
        .mobile-menu-btn:hover{background:var(--bg-card)}

        /* Category Hero / Banner */
        .cat-hero{position:relative;padding:60px 0 50px;overflow:hidden;background:linear-gradient(180deg,var(--bg-secondary) 0%,var(--bg) 100%)}
        .cat-hero::before{content:'';position:absolute;top:-180px;right:-120px;width:500px;height:500px;background:radial-gradient(circle,rgba(108,92,231,0.18) 0%,transparent 70%);border-radius:50%;pointer-events:none}
        .cat-hero::after{content:'';position:absolute;bottom:-100px;left:-100px;width:350px;height:350px;background:radial-gradient(circle,rgba(0,210,211,0.12) 0%,transparent 70%);border-radius:50%;pointer-events:none}
        .cat-hero .container{position:relative;z-index:2}
        .cat-breadcrumb{display:flex;align-items:center;gap:8px;font-size:0.88rem;color:var(--text-muted);margin-bottom:16px;flex-wrap:wrap}
        .cat-breadcrumb a{color:var(--text-secondary);transition:color var(--transition)}
        .cat-breadcrumb a:hover{color:var(--accent)}
        .cat-breadcrumb .sep{color:var(--border-light)}
        .cat-breadcrumb .current{color:var(--text)}
        .cat-hero-title{font-size:2.6rem;font-weight:900;letter-spacing:-1px;margin-bottom:12px;line-height:1.2}
        .cat-hero-title span{background:linear-gradient(135deg,#fff 20%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
        .cat-hero-desc{font-size:1.05rem;color:var(--text-secondary);max-width:600px;line-height:1.6}
        .cat-stats-row{display:flex;gap:28px;margin-top:20px;flex-wrap:wrap}
        .cat-stat-item{display:flex;align-items:center;gap:8px;font-size:0.9rem;color:var(--text-secondary)}
        .cat-stat-item .stat-num{font-weight:700;color:var(--accent);font-size:1.2rem}
        .cat-stat-item .stat-icon{width:36px;height:36px;border-radius:50%;background:var(--bg-card);display:flex;align-items:center;justify-content:center;color:var(--primary-light);font-size:0.85rem}

        /* Filter / Tag Bar */
        .filter-section{padding:0;margin-top:-10px;position:relative;z-index:10}
        .filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:16px 0;border-bottom:1px solid var(--border)}
        .filter-label{font-weight:700;font-size:0.9rem;color:var(--text-muted);white-space:nowrap}
        .filter-tags{display:flex;gap:8px;flex-wrap:wrap}
        .filter-tag{padding:7px 16px;border-radius:50px;font-size:0.88rem;font-weight:600;cursor:pointer;border:2px solid var(--border);background:transparent;color:var(--text-secondary);transition:all var(--transition);white-space:nowrap}
        .filter-tag:hover{border-color:var(--primary-light);color:var(--text);background:var(--bg-card)}
        .filter-tag.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:var(--shadow-glow)}
        .filter-sort{display:flex;align-items:center;gap:8px;margin-left:auto}
        .filter-sort select{padding:8px 14px;border-radius:50px;font-size:0.88rem;background:var(--bg-card);border:2px solid var(--border);color:var(--text);outline:none;cursor:pointer;transition:all var(--transition);appearance:none;-webkit-appearance:none;padding-right:36px;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 d='M6 8L1 3h10z' fill='%237A7195'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}
        .filter-sort select:focus{border-color:var(--primary)}

        /* Game Grid */
        .game-grid-section{padding:40px 0 var(--section-gap)}
        .section-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:32px;flex-wrap:wrap;gap:16px}
        .section-title{font-size:1.6rem;font-weight:800;letter-spacing:-0.5px}
        .section-subtitle{font-size:0.9rem;color:var(--text-muted);margin-top:4px}
        .section-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:rgba(0,210,211,0.1);border:1px solid rgba(0,210,211,0.25);border-radius:50px;font-size:0.82rem;color:var(--accent);font-weight:600}
        .game-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
        .game-card{background:var(--bg-card);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);transition:all var(--transition-slow);position:relative;display:flex;flex-direction:column}
        .game-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg),0 0 30px var(--primary-glow);border-color:var(--border-light);background:var(--bg-card-hover)}
        .game-card-img-wrap{position:relative;overflow:hidden;aspect-ratio:16/10}
        .game-card-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-slow)}
        .game-card:hover .game-card-img-wrap img{transform:scale(1.08)}
        .game-card-badge{position:absolute;top:10px;left:10px;padding:4px 10px;border-radius:50px;font-size:0.75rem;font-weight:700;z-index:2;letter-spacing:0.3px}
        .badge-hot{background:linear-gradient(135deg,#FF6B6B,#EE5A24);color:#fff}
        .badge-new{background:linear-gradient(135deg,var(--accent),#0097E6);color:#fff}
        .badge-rank{background:linear-gradient(135deg,#F9CA24,#F0932B);color:#1a1a1a}
        .game-card-rating{position:absolute;top:10px;right:10px;padding:3px 9px;background:rgba(0,0,0,0.7);border-radius:50px;color:#FFD700;font-size:0.78rem;font-weight:700;z-index:2;display:flex;align-items:center;gap:4px}
        .game-card-body{padding:16px 18px 18px;flex:1;display:flex;flex-direction:column}
        .game-card-title{font-size:1.05rem;font-weight:700;margin-bottom:6px;line-height:1.3}
        .game-card-meta{font-size:0.82rem;color:var(--text-muted);margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
        .game-card-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
        .game-card-tag{padding:3px 10px;background:rgba(108,92,231,0.15);border-radius:50px;font-size:0.75rem;color:var(--primary-light)}
        .game-card-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border-radius:50px;font-weight:700;font-size:0.88rem;border:none;cursor:pointer;transition:all var(--transition);margin-top:auto;text-align:center;letter-spacing:0.2px}
        .game-card-btn:hover{box-shadow:var(--shadow-glow);transform:translateY(-2px);background:linear-gradient(135deg,var(--primary-light),var(--primary))}
        .game-card-btn:active{transform:scale(0.97)}

        /* Featured / Highlight Section */
        .featured-section{padding:50px 0 var(--section-gap);background:var(--bg-secondary);position:relative;overflow:hidden}
        .featured-section::before{content:'';position:absolute;top:-200px;left:50%;transform:translateX(-50%);width:600px;height:600px;background:radial-gradient(circle,rgba(108,92,231,0.1) 0%,transparent 70%);border-radius:50%;pointer-events:none}
        .featured-section .container{position:relative;z-index:2}
        .featured-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
        .featured-visual{position:relative;border-radius:var(--radius-xl);overflow:hidden;aspect-ratio:4/3}
        .featured-visual img{width:100%;height:100%;object-fit:cover}
        .featured-visual .overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(15,10,26,0.9) 100%)}
        .featured-visual .visual-text{position:absolute;bottom:24px;left:24px;right:24px;z-index:2}
        .featured-visual .visual-text .vt-label{font-size:0.8rem;color:var(--accent);font-weight:700;text-transform:uppercase;letter-spacing:1px}
        .featured-visual .visual-text .vt-title{font-size:1.5rem;font-weight:900;color:#fff;margin-top:4px}
        .featured-info h3{font-size:1.8rem;font-weight:900;margin-bottom:12px;letter-spacing:-0.5px}
        .featured-info p{color:var(--text-secondary);margin-bottom:20px;line-height:1.7}
        .featured-list{display:flex;flex-direction:column;gap:12px;margin-bottom:22px}
        .featured-list-item{display:flex;align-items:flex-start;gap:10px;font-size:0.92rem;color:var(--text-secondary)}
        .featured-list-item i{color:var(--accent);margin-top:4px;flex-shrink:0}

        /* Trending / Rank */
        .rank-section{padding:0 0 var(--section-gap)}
        .rank-list{display:flex;flex-direction:column;gap:10px}
        .rank-item{display:flex;align-items:center;gap:16px;padding:14px 18px;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);transition:all var(--transition);cursor:pointer}
        .rank-item:hover{background:var(--bg-card-hover);border-color:var(--border-light);transform:translateX(4px)}
        .rank-num{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1rem;flex-shrink:0}
        .rank-num.top1{background:linear-gradient(135deg,#F9CA24,#F0932B);color:#1a1a1a}
        .rank-num.top2{background:linear-gradient(135deg,#B0BEC5,#78909C);color:#fff}
        .rank-num.top3{background:linear-gradient(135deg,#D4A574,#A0522D);color:#fff}
        .rank-num.normal{background:var(--bg-elevated);color:var(--text-muted)}
        .rank-item .rank-img{width:56px;height:56px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0}
        .rank-item .rank-info{flex:1;min-width:0}
        .rank-item .rank-name{font-weight:700;font-size:0.95rem}
        .rank-item .rank-detail{font-size:0.8rem;color:var(--text-muted);margin-top:2px}
        .rank-item .rank-action{padding:7px 16px;background:var(--primary);color:#fff;border-radius:50px;font-size:0.82rem;font-weight:600;white-space:nowrap;transition:all var(--transition);border:none;cursor:pointer}
        .rank-item .rank-action:hover{background:var(--primary-light);box-shadow:var(--shadow-glow)}

        /* CTA */
        .cta-section{padding:50px 0 var(--section-gap)}
        .cta-card{background:linear-gradient(135deg,var(--bg-elevated),var(--bg-card));border-radius:var(--radius-xl);padding:48px 40px;text-align:center;border:1px solid var(--border-light);position:relative;overflow:hidden}
        .cta-card::before{content:'';position:absolute;top:-100px;right:-60px;width:280px;height:280px;background:radial-gradient(circle,rgba(108,92,231,0.2) 0%,transparent 70%);border-radius:50%;pointer-events:none}
        .cta-card h3{font-size:1.8rem;font-weight:900;margin-bottom:10px;position:relative;z-index:2}
        .cta-card p{color:var(--text-secondary);margin-bottom:24px;position:relative;z-index:2;max-width:500px;margin-left:auto;margin-right:auto}
        .cta-btn-group{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative;z-index:2}
        .btn-primary-lg{padding:14px 32px;background:linear-gradient(135deg,var(--primary),var(--accent-dark));color:#fff;border-radius:50px;font-weight:700;font-size:1rem;border:none;cursor:pointer;transition:all var(--transition);letter-spacing:0.3px;box-shadow:0 4px 20px rgba(108,92,231,0.3)}
        .btn-primary-lg:hover{transform:translateY(-3px);box-shadow:0 8px 35px rgba(108,92,231,0.45)}
        .btn-outline-lg{padding:14px 32px;background:transparent;color:var(--text);border:2px solid var(--border-light);border-radius:50px;font-weight:700;font-size:1rem;cursor:pointer;transition:all var(--transition)}
        .btn-outline-lg:hover{border-color:var(--accent);color:var(--accent);background:rgba(0,210,211,0.05)}

        /* FAQ */
        .faq-section{padding:0 0 var(--section-gap)}
        .faq-list{display:flex;flex-direction:column;gap:12px}
        .faq-item{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden;transition:all var(--transition)}
        .faq-item:hover{border-color:var(--border-light)}
        .faq-question{width:100%;padding:18px 22px;background:none;border:none;color:var(--text);font-weight:700;font-size:0.98rem;text-align:left;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;transition:all var(--transition)}
        .faq-question i{color:var(--primary-light);transition:transform var(--transition);flex-shrink:0}
        .faq-item.open .faq-question i{transform:rotate(180deg);color:var(--accent)}
        .faq-answer{max-height:0;overflow:hidden;transition:max-height var(--transition-slow),padding var(--transition-slow)}
        .faq-item.open .faq-answer{max-height:300px;padding:0 22px 18px}
        .faq-answer p{color:var(--text-secondary);font-size:0.9rem;line-height:1.7}

        /* Footer */
        .site-footer{background:var(--bg-secondary);border-top:1px solid var(--border);padding:50px 0 24px;margin-top:20px}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
        .footer-logo{font-size:1.3rem;font-weight:800;color:var(--text);margin-bottom:12px;letter-spacing:-0.3px}
        .footer-brand p{font-size:0.88rem;color:var(--text-muted);line-height:1.6}
        .footer-col h5{font-size:0.92rem;font-weight:700;color:var(--text);margin-bottom:14px}
        .footer-col ul{display:flex;flex-direction:column;gap:8px}
        .footer-col ul li a{font-size:0.87rem;color:var(--text-muted);transition:color var(--transition)}
        .footer-col ul li a:hover{color:var(--accent)}
        .footer-bottom{border-top:1px solid var(--border);padding-top:20px;text-align:center}
        .footer-bottom p{font-size:0.82rem;color:var(--text-muted)}

        /* Responsive */
        @media(max-width:1024px){
            .game-grid{grid-template-columns:repeat(3,1fr)}
            .featured-grid{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr 1fr}
            .cat-hero-title{font-size:2.1rem}
            .search-box{max-width:240px}
        }
        @media(max-width:768px){
            .game-grid{grid-template-columns:repeat(2,1fr);gap:14px}
            .header-inner{flex-wrap:wrap}
            .nav-search-wrap{order:3;width:100%;justify-content:space-between}
            .search-box{max-width:100%;flex:1}
            .nav-links{flex:1;justify-content:center}
            .cat-hero-title{font-size:1.7rem}
            .filter-bar{flex-direction:column;align-items:flex-start;gap:12px}
            .filter-sort{margin-left:0}
            .cta-card{padding:32px 20px}
            .footer-grid{grid-template-columns:1fr;gap:28px}
            .rank-item{gap:10px;padding:12px}
            .rank-item .rank-action{font-size:0.75rem;padding:6px 12px}
            .section-header{flex-direction:column;align-items:flex-start}
            :root{--section-gap:56px}
        }
        @media(max-width:520px){
            .game-grid{grid-template-columns:1fr 1fr;gap:10px}
            .game-card-body{padding:12px}
            .game-card-title{font-size:0.9rem}
            .game-card-btn{padding:8px 14px;font-size:0.78rem}
            .cat-hero-title{font-size:1.4rem}
            .cat-hero{padding:36px 0 30px}
            .nav-link-item{padding:7px 12px;font-size:0.85rem}
            .search-box{min-width:140px}
            .cta-btn-group{flex-direction:column;align-items:center}
            .cat-stats-row{gap:16px}
            .featured-section{padding:32px 0 var(--section-gap-mobile)}
            .rank-item .rank-img{width:44px;height:44px}
            :root{--section-gap:40px}
        }