/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #c0392b;
            --primary-dark: #a93226;
            --primary-light: #e74c3c;
            --secondary: #f39c12;
            --secondary-light: #f1c40f;
            --accent: #e67e22;
            --dark: #0b0e1a;
            --dark-light: #1a1f2e;
            --dark-card: #121720;
            --body-bg: #f4f6f9;
            --white: #ffffff;
            --text: #1a1f2e;
            --text-light: #6b7280;
            --text-muted: #9ca3af;
            --border: #e5e7eb;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.15);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --transition: 0.25s ease;
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text);
            background: var(--body-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Typography ===== */
        .h1,
        .h2,
        .h3,
        .h4 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
        }
        .h1 {
            font-size: clamp(2.2rem, 5vw, 4rem);
            letter-spacing: -0.02em;
        }
        .h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
            letter-spacing: -0.01em;
        }
        .h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        .h4 {
            font-size: 1.1rem;
        }
        .text-sm {
            font-size: 0.875rem;
        }
        .text-xs {
            font-size: 0.75rem;
        }
        .text-muted {
            color: var(--text-light);
        }
        .text-center {
            text-align: center;
        }

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }
        .section-dark {
            background: var(--dark);
            color: var(--white);
        }
        .section-dark .h2,
        .section-dark .h3 {
            color: var(--white);
        }
        .section-light {
            background: var(--white);
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header .h2 {
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto;
            font-size: 1.05rem;
        }
        .section-header.text-center p {
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(192, 57, 43, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            background: var(--white);
            color: var(--dark);
            border-color: var(--white);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-secondary {
            background: var(--secondary);
            color: var(--dark);
            border-color: var(--secondary);
        }
        .btn-secondary:hover {
            background: var(--secondary-light);
            border-color: var(--secondary-light);
            color: var(--dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(243, 156, 18, 0.35);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }
        .btn:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11, 14, 26, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--white);
            letter-spacing: -0.02em;
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--white);
            flex-shrink: 0;
        }
        .header-logo:hover {
            color: var(--white);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .header-nav a {
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .header-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width var(--transition);
            border-radius: 2px;
        }
        .header-nav a:hover {
            color: var(--white);
        }
        .header-nav a:hover::after {
            width: 100%;
        }
        .header-nav a.active {
            color: var(--white);
        }
        .header-nav a.active::after {
            width: 100%;
            background: var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-actions .search-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            font-size: 1rem;
        }
        .header-actions .search-btn:hover {
            background: rgba(255, 255, 255, 0.16);
            color: var(--white);
        }
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            color: var(--white);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            transition: background var(--transition);
        }
        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.16);
        }

        @media (max-width: 768px) {
            .header-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(11, 14, 26, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                gap: 0;
                padding: 16px 24px 24px;
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                pointer-events: none;
                border-radius: 0 0 16px 16px;
            }
            .header-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .header-nav a {
                padding: 14px 0;
                font-size: 1.05rem;
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .header-nav a:last-child {
                border-bottom: none;
            }
            .header-nav a::after {
                display: none;
            }
            .header-nav a.active {
                color: var(--secondary);
            }
            .mobile-toggle {
                display: flex;
            }
            .header-actions .btn {
                display: none;
            }
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: var(--dark);
            position: relative;
            overflow: hidden;
            padding-top: var(--nav-height);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 14, 26, 0.92) 40%, rgba(11, 14, 26, 0.4) 80%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            width: 100%;
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .hero-content {
            max-width: 600px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(192, 57, 43, 0.2);
            border: 1px solid rgba(192, 57, 43, 0.3);
            border-radius: 50px;
            padding: 6px 18px;
            font-size: 0.8rem;
            color: var(--secondary);
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
            text-transform: uppercase;
        }
        .hero-badge i {
            font-size: 0.7rem;
        }
        .hero-title {
            color: var(--white);
            margin-bottom: 20px;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        .hero-visual-inner {
            width: 100%;
            max-width: 520px;
            aspect-ratio: 4/3;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: url('/assets/images/coverpic/cover-1.png') center center / cover no-repeat;
            box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.08);
            position: relative;
        }
        .hero-visual-inner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(192, 57, 43, 0.15), rgba(243, 156, 18, 0.10));
            pointer-events: none;
        }
        .hero-countdown {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            background: rgba(11, 14, 26, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .hero-countdown .label {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.75rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .hero-countdown .time {
            color: var(--white);
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 2px;
        }
        .hero-countdown .unit {
            color: var(--secondary);
            font-size: 0.75rem;
            font-weight: 600;
            margin-left: 2px;
        }
        .hero-countdown .sep {
            color: rgba(255, 255, 255, 0.2);
            font-size: 1.2rem;
            font-weight: 300;
        }

        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: center;
            }
            .hero-content {
                max-width: 100%;
            }
            .hero-desc {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-visual-inner {
                max-width: 480px;
                margin: 0 auto;
            }
        }
        @media (max-width: 768px) {
            .hero {
                min-height: 90vh;
            }
            .hero .container {
                padding-top: 16px;
                padding-bottom: 16px;
            }
            .hero-countdown {
                flex-wrap: wrap;
                gap: 8px;
                padding: 12px 16px;
            }
            .hero-countdown .time {
                font-size: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .hero-countdown .sep {
                display: none;
            }
            .hero-countdown {
                justify-content: center;
                gap: 12px;
            }
        }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 36px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: transparent;
        }
        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(192, 57, 43, 0.08), rgba(243, 156, 18, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.5rem;
            color: var(--primary);
            transition: all var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            transform: scale(1.05);
        }
        .feature-card .h4 {
            margin-bottom: 12px;
        }
        .feature-card p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .feature-card {
                padding: 28px 20px;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* ===== Category Cards ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .category-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }
        .category-card-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
            display: flex;
            align-items: flex-end;
            padding: 20px;
        }
        .category-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 14, 26, 0.7) 0%, transparent 60%);
            pointer-events: none;
        }
        .category-card-img .tag {
            position: relative;
            z-index: 1;
            background: rgba(192, 57, 43, 0.9);
            color: var(--white);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .category-card-body {
            padding: 20px 24px 24px;
        }
        .category-card-body .h4 {
            margin-bottom: 8px;
        }
        .category-card-body p {
            color: var(--text-light);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .category-card-body .btn {
            font-size: 0.85rem;
            padding: 8px 20px;
        }

        @media (max-width: 768px) {
            .category-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-card-img {
                height: 160px;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* ===== Latest News (CMS) ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .news-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .news-card-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
            flex-shrink: 0;
        }
        .news-card-img .news-cat {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--primary);
            color: var(--white);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .news-card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card-body .h4 {
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-body p {
            color: var(--text-light);
            font-size: 0.9rem;
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }
        .news-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: auto;
        }
        .news-card-footer .date {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .news-card-footer .read-more {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition);
        }
        .news-card-footer .read-more:hover {
            gap: 8px;
            color: var(--primary-dark);
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            background: var(--white);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
            color: var(--text-light);
        }
        .news-empty i {
            font-size: 2rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: block;
        }

        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .news-card-img {
                height: 160px;
            }
            .news-card-body {
                padding: 16px 18px 20px;
            }
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 32px 20px;
            text-align: center;
            transition: all var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .stat-label {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .stat-card {
                padding: 24px 16px;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ===== Process / Timeline ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .process-step {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            text-align: center;
            position: relative;
            transition: all var(--transition);
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .process-step::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            box-shadow: 0 4px 12px rgba(192, 57, 43, 0.3);
        }
        .process-step .step-icon {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 16px;
            margin-top: 8px;
        }
        .process-step .h4 {
            margin-bottom: 10px;
        }
        .process-step p {
            color: var(--text-light);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .process-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(192, 57, 43, 0.2);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            background: none;
            text-align: left;
            cursor: pointer;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(0, 0, 0, 0.02);
        }
        .faq-question i {
            color: var(--primary);
            font-size: 0.85rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 0.88rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-content .h2 {
            color: var(--white);
            margin-bottom: 16px;
        }
        .cta-content p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 1.05rem;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .cta-content .btn {
            font-size: 1.05rem;
            padding: 16px 40px;
        }

        /* ===== Footer ===== */
        .footer {
            background: #080b14;
            color: rgba(255, 255, 255, 0.6);
            padding: 60px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .header-logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
        }
        .footer-col .h4 {
            color: var(--white);
            font-size: 1rem;
            margin-bottom: 18px;
            font-weight: 600;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.88rem;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--secondary);
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.5);
            transition: all var(--transition);
            font-size: 1rem;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-2px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: 0 4px 20px rgba(192, 57, 43, 0.35);
            z-index: 999;
            opacity: 0;
            transform: translateY(20px);
            transition: all var(--transition);
            pointer-events: none;
        }
        .back-top.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .back-top:hover {
            background: var(--primary-dark);
            transform: translateY(-4px);
            box-shadow: 0 8px 28px rgba(192, 57, 43, 0.45);
        }
        .back-top:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ===== Utility ===== */
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .gap-16 {
            gap: 16px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .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;
        }

        /* ===== Selection ===== */
        ::selection {
            background: var(--primary);
            color: var(--white);
        }

        /* ===== Focus visible global ===== */
        :focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--dark);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(255, 255, 255, 0.25);
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #E63946;
            --primary-dark: #C1121F;
            --primary-light: #F1FAEE;
            --secondary: #1D3557;
            --secondary-light: #457B9D;
            --accent: #F4A261;
            --accent-gold: #E9C46A;
            --bg: #F8F9FA;
            --bg-dark: #1A1A2E;
            --bg-card: #FFFFFF;
            --text: #1D3557;
            --text-light: #6C757D;
            --text-white: #FFFFFF;
            --border: #DEE2E6;
            --border-light: #E9ECEF;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(0,0,0,0.08);
            --shadow-hover: 0 16px 48px rgba(0,0,0,0.14);
            --shadow-card: 0 4px 20px rgba(0,0,0,0.06);
            --transition: 0.35s cubic-bezier(0.25,0.46,0.45,0.94);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --spacer: 80px;
            --spacer-sm: 48px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Typography ===== */
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text); }
        h1 { font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: -0.02em; }
        h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.01em; }
        h3 { font-size: clamp(1.4rem, 2.5vw, 1.8rem); }
        h4 { font-size: 1.2rem; }
        .h1, .h2, .h3, .h4 { font-weight: 700; line-height: 1.3; }
        .h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
        .h2 { font-size: clamp(2rem, 4vw, 3rem); }
        .h3 { font-size: clamp(1.4rem, 2.5vw, 1.8rem); }
        .h4 { font-size: 1.2rem; }
        .text-center { text-align: center; }
        .text-light { color: var(--text-light); }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: 2px solid transparent;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230,57,70,0.3);
        }
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230,57,70,0.4);
            color: #fff;
        }
        .btn:active { transform: translateY(0); box-shadow: 0 2px 10px rgba(230,57,70,0.25); }
        .btn:focus-visible { outline: 3px solid var(--primary); outline-offset: 3px; }
        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230,57,70,0.3);
        }
        .btn-secondary {
            background: var(--secondary);
            box-shadow: 0 4px 16px rgba(29,53,87,0.25);
        }
        .btn-secondary:hover { background: #152740; box-shadow: 0 8px 28px rgba(29,53,87,0.35); }
        .btn-sm { padding: 10px 22px; font-size: 0.9rem; }
        .btn-lg { padding: 18px 44px; font-size: 1.1rem; }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-gold { background: #FEF3CD; color: #856404; }
        .badge-blue { background: #D0E4F5; color: #1D3557; }
        .badge-green { background: #D4EDDA; color: #155724; }
        .badge-secondary { background: #E2E3E5; color: #383D41; }

        /* ===== Header & Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: var(--transition);
        }
        .header.scrolled { box-shadow: 0 2px 24px rgba(0,0,0,0.06); }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.5px;
        }
        .header-logo .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 12px;
            color: #fff;
            font-size: 1.2rem;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-nav a {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-light);
            transition: var(--transition);
        }
        .header-nav a:hover { color: var(--primary); background: var(--primary-light); }
        .header-nav a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(230,57,70,0.25);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-actions .search-toggle {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 1.1rem;
            background: var(--bg);
            transition: var(--transition);
        }
        .header-actions .search-toggle:hover { background: var(--primary-light); color: var(--primary); }
        .mobile-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--text);
            background: var(--bg);
            border-radius: 12px;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            margin-top: var(--header-height);
            padding: 100px 0 80px;
            background: linear-gradient(135deg, var(--secondary) 0%, #16213E 100%);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') no-repeat center/cover;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(230,57,70,0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner .badge { margin-bottom: 16px; }
        .page-banner h1 {
            color: var(--text-white);
            margin-bottom: 16px;
            max-width: 700px;
        }
        .page-banner p {
            color: rgba(255,255,255,0.75);
            font-size: 1.15rem;
            max-width: 600px;
            line-height: 1.8;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 20px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
        }
        .breadcrumb a { color: rgba(255,255,255,0.75); }
        .breadcrumb a:hover { color: #fff; }
        .breadcrumb i { font-size: 0.7rem; }

        /* ===== Sections ===== */
        .section { padding: var(--spacer) 0; }
        .section-sm { padding: var(--spacer-sm) 0; }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--text-white); }
        .section-dark .text-light { color: rgba(255,255,255,0.6); }
        .section-highlight { background: linear-gradient(135deg, var(--primary-light) 0%, #FFF5F5 100%); }
        .section-title {
            margin-bottom: 16px;
            position: relative;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 48px;
            text-align: center;
        }
        .section-dark .section-subtitle { color: rgba(255,255,255,0.6); }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }
        .card-body { padding: 24px; }
        .card-body .badge { margin-bottom: 10px; }
        .card-body h3 { margin-bottom: 8px; }
        .card-body h3 a { color: var(--text); }
        .card-body h3 a:hover { color: var(--primary); }
        .card-body p { color: var(--text-light); font-size: 0.95rem; line-height: 1.7; }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .card-meta i { margin-right: 4px; }

        /* ===== Grid ===== */
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
        .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 28px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

        /* ===== Event Cards (special) ===== */
        .event-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .event-card-top {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .event-card-top img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .event-card:hover .event-card-top img { transform: scale(1.05); }
        .event-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 60%);
        }
        .event-card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
        }
        .event-card-countdown {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            display: flex;
            gap: 10px;
        }
        .countdown-item {
            background: rgba(0,0,0,0.65);
            backdrop-filter: blur(8px);
            border-radius: 8px;
            padding: 6px 12px;
            text-align: center;
            color: #fff;
            min-width: 52px;
        }
        .countdown-item .num { font-size: 1.1rem; font-weight: 700; display: block; line-height: 1.2; }
        .countdown-item .label { font-size: 0.6rem; opacity: 0.7; text-transform: uppercase; }
        .event-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
        .event-card-body h3 { font-size: 1.1rem; margin-bottom: 6px; }
        .event-card-body p { font-size: 0.9rem; color: var(--text-light); flex: 1; }
        .event-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            border-top: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: var(--text-light);
        }

        /* ===== Ranking Table ===== */
        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .ranking-table thead {
            background: var(--secondary);
            color: #fff;
        }
        .ranking-table th {
            padding: 14px 20px;
            font-weight: 600;
            font-size: 0.9rem;
            text-align: left;
        }
        .ranking-table td {
            padding: 12px 20px;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.95rem;
        }
        .ranking-table tbody tr:hover { background: var(--primary-light); }
        .ranking-table .rank-num {
            font-weight: 700;
            color: var(--primary);
            width: 40px;
        }
        .ranking-table .rank-1 { color: #E9C46A; }
        .ranking-table .rank-2 { color: #B0B0B0; }
        .ranking-table .rank-3 { color: #CD7F32; }

        /* ===== Timeline / Bracket ===== */
        .bracket {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding: 20px 0 30px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .bracket::-webkit-scrollbar { height: 6px; }
        .bracket::-webkit-scrollbar-track { background: var(--border-light); border-radius: 10px; }
        .bracket::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 10px; }
        .bracket-round {
            min-width: 220px;
            scroll-snap-align: start;
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }
        .bracket-round h4 {
            text-align: center;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary);
            margin-bottom: 16px;
            font-size: 1rem;
        }
        .bracket-match {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border-light);
            font-size: 0.9rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .bracket-match:last-child { border-bottom: none; }
        .bracket-match .team { font-weight: 500; }
        .bracket-match .score { font-weight: 700; color: var(--primary); }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            gap: 16px;
            background: none;
            width: 100%;
            text-align: left;
            color: var(--text);
        }
        .faq-question i { color: var(--primary); transition: var(--transition); font-size: 0.9rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-light);
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') no-repeat center/cover;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: #fff; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.85); max-width: 600px; margin: 0 auto 32px; }
        .cta-section .btn { background: #fff; color: var(--primary); box-shadow: 0 8px 32px rgba(0,0,0,0.15); }
        .cta-section .btn:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 12px 40px rgba(0,0,0,0.2); }

        /* ===== Footer ===== */
        .footer {
            background: var(--secondary);
            color: rgba(255,255,255,0.85);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .header-logo { color: #fff; margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.8; color: rgba(255,255,255,0.65); margin-bottom: 20px; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.7);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; }
        .footer-col h4 { color: #fff; margin-bottom: 18px; font-size: 1.1rem; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul a {
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul a:hover { color: #fff; padding-left: 4px; }
        .footer-col ul a i { margin-right: 8px; color: var(--primary); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-4 { grid-template-columns: 1fr 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 768px) {
            :root { --spacer: 56px; --spacer-sm: 32px; }
            .header-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px;
                gap: 6px;
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-110%);
                opacity: 0;
                transition: var(--transition);
                box-shadow: 0 20px 40px rgba(0,0,0,0.06);
                z-index: 999;
            }
            .header-nav.open { transform: translateY(0); opacity: 1; }
            .header-nav a { width: 100%; text-align: center; padding: 12px 20px; }
            .mobile-toggle { display: flex; }
            .page-banner { padding: 80px 0 60px; min-height: 260px; }
            .page-banner h1 { font-size: 2rem; }
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 20px; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .event-card-countdown { gap: 6px; }
            .countdown-item { min-width: 44px; padding: 4px 8px; }
            .countdown-item .num { font-size: 0.9rem; }
            .ranking-table th, .ranking-table td { padding: 10px 12px; font-size: 0.85rem; }
            .bracket-round { min-width: 180px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .page-banner { padding: 64px 0 48px; min-height: 220px; }
            .page-banner h1 { font-size: 1.6rem; }
            .section-title { font-size: 1.5rem; }
            .card-body { padding: 16px; }
            .event-card-body { padding: 14px; }
            .event-card-footer { padding: 10px 14px; flex-direction: column; gap: 6px; }
            .btn { padding: 12px 24px; font-size: 0.9rem; }
            .btn-lg { padding: 14px 32px; font-size: 1rem; }
        }

        /* ===== Animations ===== */
        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-fade-up { animation: fadeUp 0.6s ease forwards; }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

        /* ===== Utility ===== */
        .gap-8 { gap: 8px; }
        .gap-12 { gap: 12px; }
        .gap-16 { gap: 16px; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .mb-32 { margin-bottom: 32px; }
        .flex { display: flex; }
        .flex-wrap { flex-wrap: wrap; }
        .items-center { align-items: center; }
        .justify-between { justify-content: space-between; }
        .justify-center { justify-content: center; }
        .text-primary { color: var(--primary); }
        .text-secondary { color: var(--secondary); }
        .bg-white { background: #fff; }
        .rounded-full { border-radius: 50px; }
        .overflow-hidden { overflow: hidden; }
        .relative { position: relative; }

/* roulang page: article */
/* ===== Design Variables ===== */
    :root {
        --primary: #0d9f4e;
        --primary-dark: #0a7d3e;
        --primary-light: #e8f5e9;
        --primary-gradient: linear-gradient(135deg, #0d9f4e 0%, #0a7d3e 100%);
        --accent: #f5a623;
        --accent-dark: #e0910a;
        --accent-light: #fef3e2;
        --dark: #0f1e2d;
        --dark-soft: #1a2a3a;
        --gray-900: #1e293b;
        --gray-700: #334155;
        --gray-600: #475569;
        --gray-500: #64748b;
        --gray-400: #94a3b8;
        --gray-300: #cbd5e1;
        --gray-200: #e2e8f0;
        --gray-100: #f1f5f9;
        --white: #ffffff;
        --bg: #f8fafc;
        --bg-warm: #fcf9f4;
        --radius: 14px;
        --radius-sm: 8px;
        --radius-xl: 20px;
        --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
        --shadow: 0 6px 24px rgba(0,0,0,0.08);
        --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
        --shadow-glow: 0 0 30px rgba(13, 159, 78, 0.15);
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        --font: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
        --container: 1200px;
        --header-height: 72px;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
        font-family: var(--font);
        font-size: 16px;
        line-height: 1.7;
        color: var(--gray-900);
        background: var(--bg);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    button { cursor: pointer; font-family: inherit; font-size: inherit; border: none; background: none; }
    input, textarea { font-family: inherit; font-size: inherit; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--dark); }
    .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

    /* ===== Typography ===== */
    .h1 { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 800; line-height: 1.15; }
    .h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; line-height: 1.2; }
    .h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); font-weight: 600; line-height: 1.3; }
    .h4 { font-size: 1.1rem; font-weight: 600; }
    .text-sm { font-size: 0.875rem; }
    .text-xs { font-size: 0.75rem; }
    .text-muted { color: var(--gray-500); }
    .text-accent { color: var(--accent); }
    .text-primary { color: var(--primary); }

    /* ===== Header & Navigation ===== */
    .header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        height: var(--header-height);
        background: rgba(255,255,255,0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--gray-200);
        transition: var(--transition);
    }
    .header.scrolled { box-shadow: var(--shadow); }
    .header-inner {
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .header-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--dark);
        letter-spacing: -0.5px;
    }
    .header-logo .logo-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--primary-gradient);
        border-radius: 10px;
        color: var(--white);
        font-size: 1.2rem;
        box-shadow: 0 4px 12px rgba(13,159,78,0.3);
    }
    .header-logo .logo-text { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .header-nav { display: flex; align-items: center; gap: 8px; }
    .header-nav a {
        padding: 10px 20px;
        border-radius: var(--radius-sm);
        font-weight: 500;
        font-size: 0.95rem;
        color: var(--gray-700);
        transition: var(--transition);
        position: relative;
    }
    .header-nav a:hover { color: var(--primary); background: var(--primary-light); }
    .header-nav a.active {
        color: var(--white);
        background: var(--primary-gradient);
        box-shadow: 0 4px 12px rgba(13,159,78,0.3);
    }
    .header-nav a.active:hover { color: var(--white); }
    .header-actions { display: flex; align-items: center; gap: 12px; }
    .header-search {
        display: flex;
        align-items: center;
        background: var(--gray-100);
        border-radius: 50px;
        padding: 0 16px;
        height: 40px;
        border: 1px solid transparent;
        transition: var(--transition);
    }
    .header-search:focus-within { border-color: var(--primary); background: var(--white); box-shadow: 0 0 0 4px rgba(13,159,78,0.1); }
    .header-search input {
        border: none;
        background: transparent;
        padding: 8px 0;
        width: 160px;
        outline: none;
        color: var(--gray-900);
        font-size: 0.9rem;
    }
    .header-search input::placeholder { color: var(--gray-400); }
    .header-search button { color: var(--gray-500); padding: 8px; font-size: 1rem; transition: var(--transition); }
    .header-search button:hover { color: var(--primary); }
    .menu-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; background: none; border: none; }
    .menu-toggle span { display: block; width: 24px; height: 2px; background: var(--dark); border-radius: 2px; transition: var(--transition); }
    .menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .menu-toggle.active span:nth-child(2) { opacity: 0; }
    .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    /* ===== Article Hero ===== */
    .article-hero {
        position: relative;
        padding: calc(var(--header-height) + 40px) 0 60px;
        min-height: 380px;
        display: flex;
        align-items: center;
        background: var(--dark);
        overflow: hidden;
    }
    .article-hero-bg {
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
        opacity: 0.4;
        transform: scale(1.05);
        transition: transform 8s ease;
    }
    .article-hero:hover .article-hero-bg { transform: scale(1.1); }
    .article-hero-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(15,30,45,0.88) 0%, rgba(13,159,78,0.5) 100%);
    }
    .article-hero .container { position: relative; z-index: 2; width: 100%; }
    .article-hero-meta {
        display: flex;
        align-items: center;
        gap: 16px;
        margin-bottom: 20px;
        flex-wrap: wrap;
    }
    .article-category-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 18px;
        background: var(--accent);
        color: var(--dark);
        border-radius: 50px;
        font-size: 0.85rem;
        font-weight: 600;
        letter-spacing: 0.3px;
    }
    .article-date-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 18px;
        background: rgba(255,255,255,0.15);
        color: var(--gray-300);
        border-radius: 50px;
        font-size: 0.85rem;
        font-weight: 400;
        backdrop-filter: blur(4px);
    }
    .article-date-badge i { color: var(--accent); }
    .article-hero h1 {
        color: var(--white);
        max-width: 900px;
        font-size: clamp(1.8rem, 4vw, 3rem);
        font-weight: 800;
        line-height: 1.2;
        text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        margin-bottom: 16px;
    }
    .article-hero p {
        color: rgba(255,255,255,0.75);
        font-size: 1.1rem;
        max-width: 700px;
        line-height: 1.6;
    }
    .article-hero-bottom { display: flex; align-items: center; gap: 24px; margin-top: 24px; flex-wrap: wrap; }
    .article-author { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,0.7); font-size: 0.9rem; }
    .article-author i { color: var(--accent); }

    /* ===== Article Main ===== */
    .article-main { padding: 60px 0; }
    .article-layout {
        display: grid;
        grid-template-columns: 1fr 320px;
        gap: 48px;
        align-items: start;
    }
    .article-content-area { min-width: 0; }
    .article-content {
        background: var(--white);
        border-radius: var(--radius);
        padding: 48px;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--gray-200);
    }
    .article-content .featured-image {
        margin: -48px -48px 32px -48px;
        border-radius: var(--radius) var(--radius) 0 0;
        overflow: hidden;
        max-height: 480px;
        background: var(--gray-100);
    }
    .article-content .featured-image img { width: 100%; height: 100%; object-fit: cover; }
    .article-body {
        font-size: 1.05rem;
        line-height: 1.85;
        color: var(--gray-900);
    }
    .article-body h2 { font-size: 1.6rem; margin-top: 36px; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 2px solid var(--primary-light); }
    .article-body h3 { font-size: 1.3rem; margin-top: 28px; margin-bottom: 12px; }
    .article-body p { margin-bottom: 20px; }
    .article-body ul, .article-body ol { margin-bottom: 20px; padding-left: 24px; }
    .article-body ul { list-style: disc; }
    .article-body ol { list-style: decimal; }
    .article-body li { margin-bottom: 8px; }
    .article-body blockquote {
        margin: 24px 0;
        padding: 20px 24px;
        border-left: 4px solid var(--primary);
        background: var(--primary-light);
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--gray-700);
        font-style: italic;
    }
    .article-body blockquote p:last-child { margin-bottom: 0; }
    .article-body img { border-radius: var(--radius-sm); margin: 24px 0; box-shadow: var(--shadow-sm); }
    .article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
    .article-body a:hover { color: var(--primary-dark); }
    .article-body code { background: var(--gray-100); padding: 2px 8px; border-radius: 4px; font-size: 0.9em; }
    .article-body pre { background: var(--dark); color: var(--gray-100); padding: 20px; border-radius: var(--radius-sm); overflow-x: auto; margin-bottom: 20px; font-size: 0.9rem; }
    .article-body table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
    .article-body th, .article-body td { padding: 12px 16px; border: 1px solid var(--gray-200); text-align: left; }
    .article-body th { background: var(--gray-100); font-weight: 600; }

    /* ===== Article Sidebar ===== */
    .article-sidebar { display: flex; flex-direction: column; gap: 32px; }
    .sidebar-card {
        background: var(--white);
        border-radius: var(--radius);
        padding: 28px;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--gray-200);
    }
    .sidebar-card h3 {
        font-size: 1.1rem;
        font-weight: 700;
        margin-bottom: 20px;
        padding-bottom: 12px;
        border-bottom: 2px solid var(--primary-light);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .sidebar-card h3 i { color: var(--primary); }
    .sidebar-list { display: flex; flex-direction: column; gap: 12px; }
    .sidebar-list-item {
        display: flex;
        gap: 12px;
        padding: 12px;
        border-radius: var(--radius-sm);
        transition: var(--transition);
        cursor: pointer;
    }
    .sidebar-list-item:hover { background: var(--gray-100); }
    .sidebar-list-item img {
        width: 70px;
        height: 52px;
        border-radius: 6px;
        object-fit: cover;
        flex-shrink: 0;
        background: var(--gray-200);
    }
    .sidebar-list-item .item-info { flex: 1; min-width: 0; }
    .sidebar-list-item .item-title { font-size: 0.9rem; font-weight: 600; color: var(--gray-900); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.4; }
    .sidebar-list-item .item-date { font-size: 0.8rem; color: var(--gray-500); margin-top: 4px; }
    .sidebar-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .sidebar-tag {
        padding: 6px 14px;
        background: var(--gray-100);
        border-radius: 50px;
        font-size: 0.8rem;
        color: var(--gray-700);
        font-weight: 500;
        transition: var(--transition);
    }
    .sidebar-tag:hover { background: var(--primary-light); color: var(--primary); }

    /* ===== Article Footer Nav ===== */
    .article-footer-nav {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 32px;
        padding-top: 24px;
        border-top: 1px solid var(--gray-200);
        flex-wrap: wrap;
        gap: 16px;
    }
    .article-footer-nav a {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 24px;
        border-radius: var(--radius-sm);
        font-weight: 500;
        transition: var(--transition);
        color: var(--gray-700);
        background: var(--gray-100);
    }
    .article-footer-nav a:hover { background: var(--primary-light); color: var(--primary); }
    .article-footer-nav .btn-primary { background: var(--primary-gradient); color: var(--white); box-shadow: 0 4px 12px rgba(13,159,78,0.3); }
    .article-footer-nav .btn-primary:hover { box-shadow: 0 6px 20px rgba(13,159,78,0.4); transform: translateY(-2px); color: var(--white); }

    /* ===== Related Section ===== */
    .related-section { padding: 60px 0; background: var(--white); border-top: 1px solid var(--gray-200); }
    .related-header { text-align: center; margin-bottom: 40px; }
    .related-header h2 { margin-bottom: 12px; }
    .related-header p { color: var(--gray-500); max-width: 600px; margin: 0 auto; }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
        gap: 24px;
    }
    .related-card {
        background: var(--white);
        border-radius: var(--radius);
        overflow: hidden;
        border: 1px solid var(--gray-200);
        transition: var(--transition);
        box-shadow: var(--shadow-sm);
    }
    .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
    .related-card-img {
        height: 180px;
        background: var(--gray-200);
        position: relative;
        overflow: hidden;
    }
    .related-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition-slow); }
    .related-card:hover .related-card-img img { transform: scale(1.08); }
    .related-card-img .cat-tag {
        position: absolute;
        top: 12px;
        left: 12px;
        padding: 4px 14px;
        background: var(--accent);
        color: var(--dark);
        border-radius: 50px;
        font-size: 0.75rem;
        font-weight: 600;
    }
    .related-card-body { padding: 20px; }
    .related-card-body h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .related-card-body h3 a { color: var(--dark); }
    .related-card-body h3 a:hover { color: var(--primary); }
    .related-card-body p { font-size: 0.9rem; color: var(--gray-500); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
    .related-card-body .meta { display: flex; align-items: center; justify-content: space-between; font-size: 0.8rem; color: var(--gray-400); }

    /* ===== CTA Section ===== */
    .cta-section {
        padding: 60px 0;
        background: var(--dark);
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        opacity: 0.1;
    }
    .cta-section .container { position: relative; z-index: 2; text-align: center; }
    .cta-section h2 { color: var(--white); margin-bottom: 16px; }
    .cta-section p { color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto 32px; font-size: 1.05rem; }
    .cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
    .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 14px 32px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 1rem;
        transition: var(--transition);
        border: none;
        cursor: pointer;
    }
    .btn-primary { background: var(--primary-gradient); color: var(--white); box-shadow: 0 4px 16px rgba(13,159,78,0.3); }
    .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(13,159,78,0.4); }
    .btn-outline { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,0.3); }
    .btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }
    .btn-accent { background: var(--accent); color: var(--dark); box-shadow: 0 4px 16px rgba(245,166,35,0.3); }
    .btn-accent:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(245,166,35,0.4); }
    .btn-sm { padding: 10px 20px; font-size: 0.9rem; }

    /* ===== Error State ===== */
    .article-error {
        padding: 80px 0;
        text-align: center;
        min-height: 50vh;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    .article-error .error-icon {
        font-size: 4rem;
        color: var(--gray-300);
        margin-bottom: 24px;
    }
    .article-error h2 { font-size: 2rem; margin-bottom: 12px; color: var(--dark); }
    .article-error p { color: var(--gray-500); max-width: 500px; margin-bottom: 24px; }

    /* ===== Footer ===== */
    .footer {
        background: var(--dark);
        color: rgba(255,255,255,0.7);
        padding: 60px 0 0;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .footer-brand .header-logo { color: var(--white); margin-bottom: 16px; }
    .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 360px; }
    .footer-social { display: flex; gap: 12px; margin-top: 20px; }
    .footer-social a {
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 10px;
        background: rgba(255,255,255,0.08);
        color: rgba(255,255,255,0.6);
        font-size: 1.1rem;
        transition: var(--transition);
    }
    .footer-social a:hover { background: var(--primary); color: var(--white); transform: translateY(-3px); }
    .footer-col h4 { color: var(--white); margin-bottom: 20px; font-size: 1rem; font-weight: 600; }
    .footer-col ul { display: flex; flex-direction: column; gap: 12px; }
    .footer-col ul a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 6px; }
    .footer-col ul a:hover { color: var(--accent); transform: translateX(4px); }
    .footer-bottom {
        padding: 20px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 0.85rem;
        color: rgba(255,255,255,0.4);
    }
    .footer-bottom span:last-child { text-align: right; }

    /* ===== Breadcrumb ===== */
    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.85rem;
        color: var(--gray-500);
        margin-bottom: 20px;
        flex-wrap: wrap;
    }
    .breadcrumb a { color: var(--gray-400); }
    .breadcrumb a:hover { color: var(--primary); }
    .breadcrumb .sep { color: var(--gray-400); }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .article-layout { grid-template-columns: 1fr; }
        .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 32px; }
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    }

    @media (max-width: 768px) {
        :root { --header-height: 64px; }
        .header-nav { display: none; }
        .header-nav.open { display: flex; flex-direction: column; position: absolute; top: var(--header-height); left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(16px); padding: 16px 24px; border-bottom: 1px solid var(--gray-200); box-shadow: var(--shadow); gap: 4px; }
        .header-nav.open a { width: 100%; text-align: center; padding: 12px 20px; }
        .header-search input { width: 100px; }
        .menu-toggle { display: flex; }
        .article-hero { min-height: 300px; padding: calc(var(--header-height) + 24px) 0 40px; }
        .article-content { padding: 24px; }
        .article-content .featured-image { margin: -24px -24px 24px -24px; }
        .article-sidebar { grid-template-columns: 1fr; }
        .related-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
        .footer-grid { grid-template-columns: 1fr; gap: 24px; }
        .footer-bottom { flex-direction: column; text-align: center; }
        .footer-bottom span:last-child { text-align: center; }
        .cta-section h2 { font-size: 1.6rem; }
        .article-hero h1 { font-size: 1.6rem; }
        .article-footer-nav { flex-direction: column; align-items: stretch; }
        .article-footer-nav a { justify-content: center; }
    }

    @media (max-width: 520px) {
        .container { padding: 0 16px; }
        .article-content { padding: 16px; border-radius: var(--radius-sm); }
        .article-content .featured-image { margin: -16px -16px 16px -16px; }
        .article-hero { min-height: 240px; padding: calc(var(--header-height) + 16px) 0 32px; }
        .article-hero h1 { font-size: 1.3rem; }
        .related-grid { grid-template-columns: 1fr; }
        .header-search input { width: 80px; }
        .btn { width: 100%; justify-content: center; }
        .cta-buttons { flex-direction: column; }
        .breadcrumb { font-size: 0.8rem; }
        .sidebar-card { padding: 20px; }
        .article-body { font-size: 0.98rem; }
        .article-body h2 { font-size: 1.3rem; }
        .article-body blockquote { padding: 16px; }
    }

    /* ===== Accessibility ===== */
    a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
    @media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; } }