/* roulang page: index */
:root {
            --brand-800: #1e3a5f;
            --brand-900: #0b1e3d;
            --brand-950: #061428;
            --accent-500: #f04e23;
            --accent-600: #e11d48;
            --surface-50: #f8fafc;
            --surface-100: #f1f5f9;
            --surface-900: #0f172a;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border-light: #e2e8f0;
            --radius-lg: 0.875rem;
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.08), 0 12px 32px rgba(0, 0, 0, 0.06);
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-primary);
            background-color: #ffffff;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid #3b82f6;
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }
        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 40px;
                padding-right: 40px;
            }
        }

        /* ========== Header & Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 8px rgba(0, 0, 0, 0.03);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--brand-900);
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-base);
        }
        .nav-logo:hover {
            opacity: 0.85;
        }
        .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #2563eb, #1e3a5f);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
        }

        .nav-links li {
            position: relative;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 5px;
            padding: 8px 14px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-primary);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .nav-links a:hover {
            background-color: #f1f5f9;
            color: #2563eb;
        }
        .nav-links a.active {
            background-color: #eff6ff;
            color: #2563eb;
            font-weight: 600;
        }

        /* Mega Menu */
        .mega-trigger {
            cursor: pointer;
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(4px);
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.06);
            border: 1px solid var(--border-light);
            width: 520px;
            padding: 20px 24px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.25s ease;
            z-index: 999;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .mega-trigger:hover .mega-panel,
        .mega-panel:hover {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }
        .mega-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 10px;
            transition: background var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            color: var(--text-primary);
        }
        .mega-item:hover {
            background: #f8fafc;
        }
        .mega-item .mega-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #2563eb;
            flex-shrink: 0;
            transition: all var(--transition-base);
        }
        .mega-item:hover .mega-icon {
            background: #eff6ff;
            color: #1d4ed8;
        }
        .mega-item .mega-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .mega-item .mega-label {
            font-weight: 600;
            font-size: 0.9rem;
            line-height: 1.3;
        }
        .mega-item .mega-desc {
            font-size: 0.78rem;
            color: #94a3b8;
            line-height: 1.3;
        }

        /* Mobile nav toggle */
        .mobile-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: none;
            background: #f1f5f9;
            cursor: pointer;
            font-size: 1.3rem;
            color: var(--text-primary);
            transition: all var(--transition-base);
            flex-shrink: 0;
        }
        .mobile-toggle:hover {
            background: #e2e8f0;
        }
        @media (min-width: 1024px) {
            .mobile-toggle {
                display: none;
            }
        }

        /* Mobile menu */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 999;
            padding: 20px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 16px;
            border-radius: 12px;
            font-weight: 500;
            font-size: 1rem;
            color: var(--text-primary);
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: #f8fafc;
            border-color: #e2e8f0;
            color: #2563eb;
        }
        .mobile-menu .mobile-mega-group {
            padding: 10px 0;
            border-top: 1px solid #f1f5f9;
            margin-top: 4px;
        }
        .mobile-menu .mobile-mega-group .mega-label-sm {
            font-weight: 700;
            font-size: 0.85rem;
            color: #64748b;
            padding: 8px 16px 6px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        /* ========== Hero Section ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0b1e3d 0%, #1e3a5f 40%, #0f172a 100%);
            min-height: 580px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            mix-blend-mode: overlay;
            z-index: 1;
        }
        .hero-overlay-pattern {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(37, 99, 235, 0.18) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 20%, rgba(240, 78, 35, 0.12) 0%, transparent 50%);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            padding: 80px 0;
            color: #fff;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 50px;
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
            backdrop-filter: blur(8px);
        }
        .hero-badge .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #f04e23;
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(240, 78, 35, 0.6);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(240, 78, 35, 0);
            }
        }
        .hero-title {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 0.01em;
            margin-bottom: 16px;
            max-width: 700px;
        }
        .hero-title span {
            background: linear-gradient(135deg, #fb923c, #f04e23);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        @media (min-width: 768px) {
            .hero-title {
                font-size: 3.2rem;
            }
        }
        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.8rem;
            }
        }
        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            background: linear-gradient(135deg, #f04e23, #e11d48);
            color: #fff;
            box-shadow: 0 4px 16px rgba(240, 78, 35, 0.35);
            text-decoration: none;
        }
        .btn-primary:hover {
            box-shadow: 0 8px 28px rgba(240, 78, 35, 0.5);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.35);
            text-decoration: none;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-2px);
        }

        /* ========== Section Shared ========== */
        .section-padding {
            padding: 64px 0;
        }
        @media (min-width: 768px) {
            .section-padding {
                padding: 80px 0;
            }
        }
        @media (min-width: 1024px) {
            .section-padding {
                padding: 96px 0;
            }
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        @media (min-width: 768px) {
            .section-header {
                margin-bottom: 52px;
            }
        }
        .section-tag {
            display: inline-block;
            font-weight: 600;
            font-size: 0.82rem;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: #2563eb;
            background: #eff6ff;
            padding: 6px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: #0f172a;
            margin: 0 0 10px;
            line-height: 1.25;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2.2rem;
            }
        }
        .section-subtitle {
            font-size: 1rem;
            color: #64748b;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ========== Stats Cards ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        @media (min-width: 640px) {
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 20px;
            }
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 20px 16px;
            text-align: center;
            border: 1px solid #f1f5f9;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #2563eb, #3b82f6);
            border-radius: 0 0 3px 3px;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .stat-card:hover::before {
            opacity: 1;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #0f172a;
            line-height: 1.1;
            margin-bottom: 4px;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.4rem;
            }
        }
        .stat-label {
            font-size: 0.85rem;
            color: #64748b;
            font-weight: 500;
        }

        /* ========== Category Cards ========== */
        .category-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        @media (min-width: 640px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            cursor: pointer;
            text-decoration: none;
            color: inherit;
            display: block;
            min-height: 280px;
        }
        .category-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .category-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .category-card-body {
            padding: 20px;
        }
        .category-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0 0 6px;
            color: #0f172a;
        }
        .category-card-body p {
            font-size: 0.88rem;
            color: #64748b;
            margin: 0;
            line-height: 1.5;
        }
        .category-card .card-arrow {
            position: absolute;
            bottom: 18px;
            right: 20px;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-base);
            color: #64748b;
        }
        .category-card:hover .card-arrow {
            background: #2563eb;
            color: #fff;
        }

        /* ========== News List (CMS) ========== */
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }
        @media (min-width: 768px) {
            .news-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (min-width: 1024px) {
            .news-list {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .news-card {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            border: 1px solid #f1f5f9;
            text-decoration: none;
            color: inherit;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .news-card-img-wrap {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: #f1f5f9;
        }
        .news-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-card-img-wrap img {
            transform: scale(1.05);
        }
        .news-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(0, 0, 0, 0.6);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 50px;
            backdrop-filter: blur(4px);
            letter-spacing: 0.03em;
        }
        .news-card-body {
            padding: 16px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .news-card-body h4 {
            font-size: 1rem;
            font-weight: 600;
            margin: 0;
            line-height: 1.4;
            color: #0f172a;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-body .news-excerpt {
            font-size: 0.83rem;
            color: #94a3b8;
            line-height: 1.5;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.78rem;
            color: #94a3b8;
            margin-top: auto;
            padding-top: 4px;
        }
        .news-empty {
            text-align: center;
            padding: 40px 20px;
            color: #94a3b8;
            font-size: 0.95rem;
            background: #f8fafc;
            border-radius: var(--radius-xl);
            grid-column: 1 / -1;
        }

        /* ========== Features ========== */
        .features-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        @media (min-width: 640px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 24px 22px;
            border: 1px solid #f1f5f9;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            text-align: center;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #e2e8f0;
        }
        .feature-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: #eff6ff;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.4rem;
            color: #2563eb;
            transition: all var(--transition-base);
        }
        .feature-card:hover .feature-icon-wrap {
            background: #2563eb;
            color: #fff;
        }
        .feature-card h4 {
            font-weight: 700;
            font-size: 1.05rem;
            margin: 0 0 8px;
            color: #0f172a;
        }
        .feature-card p {
            font-size: 0.88rem;
            color: #64748b;
            margin: 0;
            line-height: 1.55;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid #f1f5f9;
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }
        .faq-item:hover {
            border-color: #e2e8f0;
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            color: #0f172a;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: #2563eb;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform 0.3s ease;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: #2563eb;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            margin: 0;
            font-size: 0.9rem;
            color: #64748b;
            line-height: 1.6;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            background: linear-gradient(135deg, #0b1e3d 0%, #1e3a5f 60%, #0f172a 100%);
            border-radius: var(--radius-2xl);
            padding: 48px 28px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }
        .cta-section>* {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 0 0 10px;
        }
        @media (min-width: 768px) {
            .cta-section h2 {
                font-size: 2rem;
            }
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin: 0 auto 24px;
            max-width: 520px;
            line-height: 1.6;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 34px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            background: #fff;
            color: #0f172a;
            box-shadow: 0 6px 22px rgba(0, 0, 0, 0.2);
            text-decoration: none;
        }
        .btn-cta-large:hover {
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.3);
            transform: translateY(-3px);
            background: #f8fafc;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }
        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
            }
        }
        .footer-brand {
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .footer-desc {
            font-size: 0.85rem;
            line-height: 1.6;
            color: #94a3b8;
            max-width: 300px;
        }
        .footer-col h5 {
            font-weight: 700;
            font-size: 0.9rem;
            color: #e2e8f0;
            margin: 0 0 12px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-col ul li a {
            font-size: 0.83rem;
            color: #94a3b8;
            transition: color var(--transition-base);
            text-decoration: none;
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: 0.8rem;
            color: #64748b;
        }

/* roulang page: category1 */
:root {
            --color-primary: #2563eb;
            --color-primary-dark: #1d4ed8;
            --color-primary-light: #3b82f6;
            --color-accent: #0ea5e9;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-danger: #ef4444;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12);
            --shadow-glow: 0 0 0 4px rgba(37, 99, 235, 0.12);
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --radius-full: 9999px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        /* ========== 容器 ========== */
        .container-custom {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

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

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1.5rem;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--color-primary-dark);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-link i {
            font-size: 1.5rem;
            color: var(--color-primary);
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.25rem;
        }

        .nav-links>li {
            position: relative;
        }

        .nav-links>li>a {
            display: flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.55rem 1rem;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .nav-links>li>a:hover {
            color: var(--color-primary);
            background-color: #eff6ff;
        }

        .nav-links>li>a.active {
            color: var(--color-primary);
            background-color: #eff6ff;
            font-weight: 600;
        }

        /* Mega Menu */
        .mega-trigger {
            position: relative;
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 10px);
            left: 50%;
            transform: translateX(-50%) translateY(6px);
            background: #ffffff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--color-border);
            padding: 0.75rem;
            min-width: 420px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.35rem;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all var(--transition-normal);
            z-index: 1001;
        }

        .mega-trigger:hover .mega-panel,
        .mega-trigger:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }

        .mega-item {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            padding: 0.75rem 0.85rem;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .mega-item:hover {
            background-color: #f8fafc;
        }

        .mega-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: #eff6ff;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--color-primary);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }

        .mega-item:hover .mega-icon {
            background: #dbeafe;
            transform: scale(1.05);
        }

        .mega-info {
            display: flex;
            flex-direction: column;
            gap: 0.15rem;
        }

        .mega-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-text);
            line-height: 1.3;
        }

        .mega-desc {
            font-size: 0.78rem;
            color: var(--color-text-weak);
            line-height: 1.4;
        }

        /* 移动端菜单按钮 */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 0.4rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            line-height: 1;
        }

        .mobile-toggle:hover {
            color: var(--color-primary);
            background-color: #f1f5f9;
        }

        /* 移动端导航 */
        @media (max-width: 1024px) {
            .mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .nav-links {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                bottom: 0;
                background: #ffffff;
                flex-direction: column;
                align-items: stretch;
                padding: 1rem;
                gap: 0.3rem;
                overflow-y: auto;
                transform: translateX(100%);
                transition: transform var(--transition-normal);
                z-index: 999;
                box-shadow: var(--shadow-xl);
            }

            .nav-links.open {
                transform: translateX(0);
            }

            .nav-links>li>a {
                padding: 0.85rem 1rem;
                font-size: 1.05rem;
                border-radius: var(--radius-md);
            }

            .mega-panel {
                position: static;
                transform: none;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                box-shadow: none;
                border: none;
                min-width: auto;
                grid-template-columns: 1fr;
                padding: 0.25rem 0 0.25rem 1.25rem;
                display: none;
                background: transparent;
            }

            .mega-trigger.open-mega .mega-panel {
                display: grid;
            }

            .mega-trigger>a {
                cursor: pointer;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 60px;
            }

            .logo-link {
                font-size: 1.15rem;
            }

            .nav-links {
                top: 60px;
            }
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.4rem;
            font-size: 0.88rem;
            color: var(--color-text-weak);
            padding: 0.6rem 0;
        }

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

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

        .breadcrumb-nav .separator {
            color: var(--color-text-muted);
            font-size: 0.7rem;
        }

        .breadcrumb-nav .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* ========== 分类Banner ========== */
        .category-banner {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 40%, #1d4ed8 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 3.5rem 0;
            color: #ffffff;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(59, 130, 246, 0.25) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-full);
            padding: 0.35rem 1rem;
            font-size: 0.82rem;
            font-weight: 500;
            margin-bottom: 1rem;
            color: #e2e8f0;
        }

        .banner-badge i {
            font-size: 0.7rem;
            color: #60a5fa;
        }

        .category-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin: 0 0 0.6rem 0;
            line-height: 1.2;
        }

        .category-banner .banner-subtitle {
            font-size: 1.1rem;
            color: #cbd5e1;
            max-width: 580px;
            line-height: 1.6;
            margin: 0;
        }

        .banner-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-top: 1.5rem;
        }

        .banner-stat-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .banner-stat-value {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1;
        }

        .banner-stat-label {
            font-size: 0.82rem;
            color: #94a3b8;
        }

        @media (max-width: 768px) {
            .category-banner {
                padding: 2.5rem 0;
            }
            .category-banner h1 {
                font-size: 1.9rem;
            }
            .category-banner .banner-subtitle {
                font-size: 0.95rem;
            }
            .banner-stats-row {
                gap: 1.25rem;
            }
            .banner-stat-value {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .category-banner h1 {
                font-size: 1.5rem;
            }
            .banner-stats-row {
                gap: 1rem;
                flex-direction: column;
            }
        }

        /* ========== 板块通用 ========== */
        .section-pad {
            padding: 3.5rem 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-primary);
            background: #eff6ff;
            padding: 0.3rem 0.85rem;
            border-radius: var(--radius-full);
            margin-bottom: 0.6rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 0.5rem 0;
            letter-spacing: -0.01em;
            line-height: 1.25;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--color-text-weak);
            max-width: 600px;
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 768px) {
            .section-pad {
                padding: 2.5rem 0;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .section-desc {
                font-size: 0.9rem;
            }
        }

        /* ========== 卡片通用 ========== */
        .card-sport {
            background: #ffffff;
            border-radius: var(--radius-xl);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

        .card-sport:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #bfdbfe;
        }

        .card-sport-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            background-color: #e2e8f0;
            transition: transform var(--transition-slow);
        }

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

        .card-sport-body {
            padding: 1.25rem 1.35rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-sport-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: var(--radius-full);
            background: #eff6ff;
            color: var(--color-primary);
            align-self: flex-start;
            margin-bottom: 0.6rem;
        }

        .card-sport-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 0.4rem 0;
            line-height: 1.35;
        }

        .card-sport-desc {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.55;
            margin: 0 0 0.8rem 0;
            flex: 1;
        }

        .card-sport-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border-light);
            padding-top: 0.75rem;
            margin-top: auto;
        }

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

        /* ========== 赛事列表卡片 ========== */
        .event-list-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 1rem 1.25rem;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

        .event-list-item:hover {
            box-shadow: var(--shadow-md);
            border-color: #bfdbfe;
        }

        .event-list-thumb {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
            background-color: #e2e8f0;
        }

        .event-list-info {
            flex: 1;
            min-width: 0;
        }

        .event-list-name {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text);
            margin: 0 0 0.2rem 0;
            line-height: 1.3;
        }

        .event-list-detail {
            font-size: 0.82rem;
            color: var(--color-text-weak);
            margin: 0;
            line-height: 1.4;
        }

        .event-list-badge {
            flex-shrink: 0;
            padding: 0.3rem 0.8rem;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 600;
            background: #f0fdf4;
            color: #16a34a;
            white-space: nowrap;
        }

        .event-list-badge.upcoming {
            background: #eff6ff;
            color: #2563eb;
        }

        .event-list-badge.live {
            background: #fef2f2;
            color: #dc2626;
            animation: pulse-live 2s infinite;
        }

        @keyframes pulse-live {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }

        @media (max-width: 520px) {
            .event-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }
            .event-list-thumb {
                width: 100%;
                height: 140px;
                border-radius: var(--radius-md);
            }
        }

        /* ========== 统计区块 ========== */
        .stat-card-glow {
            background: #ffffff;
            border-radius: var(--radius-xl);
            border: 1px solid var(--color-border);
            padding: 1.5rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .stat-card-glow::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 80px;
            height: 80px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .stat-card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-lg);
            background: #eff6ff;
            color: var(--color-primary);
            font-size: 1.3rem;
            margin-bottom: 0.75rem;
        }

        .stat-card-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.01em;
            line-height: 1;
            margin-bottom: 0.3rem;
        }

        .stat-card-label {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            margin: 0;
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 1.25rem 1.5rem;
            transition: all var(--transition-fast);
            cursor: default;
        }

        .faq-item:hover {
            border-color: #bfdbfe;
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            margin: 0 0 0.5rem 0;
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
        }

        .faq-question i {
            color: var(--color-primary);
            font-size: 0.85rem;
            margin-top: 0.2rem;
            flex-shrink: 0;
        }

        .faq-answer {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.65;
            margin: 0;
            padding-left: 1.55rem;
        }

        /* ========== CTA区块 ========== */
        .cta-block {
            background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 50%, #2563eb 100%);
            border-radius: var(--radius-2xl);
            padding: 2.75rem 2.5rem;
            color: #ffffff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(255, 255, 255, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-block h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 0 0 0.5rem 0;
            position: relative;
            z-index: 1;
        }

        .cta-block p {
            font-size: 0.95rem;
            color: #cbd5e1;
            margin: 0 0 1.5rem 0;
            position: relative;
            z-index: 1;
        }

        .btn-cta-white {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #ffffff;
            color: #1d4ed8;
            font-weight: 600;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
            border: none;
            cursor: pointer;
        }

        .btn-cta-white:hover {
            background: #f1f5f9;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            transform: translateY(-2px);
        }

        .btn-outline-white {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: #ffffff;
            font-weight: 600;
            padding: 0.7rem 1.8rem;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

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

        @media (max-width: 520px) {
            .cta-block {
                padding: 2rem 1.25rem;
                border-radius: var(--radius-xl);
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }

        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.6rem;
            letter-spacing: -0.01em;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.6;
            margin: 0;
            max-width: 280px;
        }

        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #e2e8f0;
            margin: 0 0 0.85rem 0;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 1.25rem;
            text-align: center;
            font-size: 0.82rem;
            color: #64748b;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.75rem;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-desc {
                max-width: 100%;
            }
        }

        /* ========== 辅助 ========== */
        .text-gradient-blue {
            background: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .divider-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-border);
            display: inline-block;
            flex-shrink: 0;
        }

        /* 骨架加载动画（用于图片加载前） */
        @keyframes shimmer {
            0% {
                background-position: -200% 0;
            }
            100% {
                background-position: 200% 0;
            }
        }

        .img-loading {
            background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%);
            background-size: 200% 100%;
            animation: shimmer 1.5s infinite;
        }

/* roulang page: article */
:root {
            --color-primary: #1a56db;
            --color-primary-hover: #1e40af;
            --color-primary-light: #dbeafe;
            --color-accent: #f59e0b;
            --color-accent-hover: #d97706;
            --color-accent-light: #fef3c7;
            --color-dark: #0f172a;
            --color-dark-light: #1e293b;
            --color-body: #1e293b;
            --color-muted: #64748b;
            --color-muted-light: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-bg: #f8fafc;
            --color-white: #ffffff;
            --color-success: #10b981;
            --color-danger: #ef4444;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing: 16px;
            --spacing-md: 24px;
            --spacing-lg: 32px;
            --spacing-xl: 48px;
            --spacing-2xl: 64px;
            --spacing-3xl: 80px;
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
        }

        *,
        *::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(--color-body);
            background: var(--color-bg);
            min-height: 100vh;
        }

        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;
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container-custom {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ===== HEADER & NAV ===== */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: var(--spacing-lg);
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

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

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #3b82f6 100%);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            box-shadow: 0 4px 10px rgba(26, 86, 219, 0.3);
        }

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

        .nav-links>li {
            position: relative;
        }

        .nav-links>li>a {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 10px 16px;
            border-radius: var(--radius);
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-body);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .nav-links>li>a:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }

        .nav-links>li>a.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
            font-weight: 700;
        }

        /* Mega Panel */
        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: var(--spacing-md);
            min-width: 420px;
            z-index: 1010;
            border: 1px solid var(--color-border);
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            margin-top: 8px;
        }

        .mega-trigger:hover .mega-panel,
        .mega-trigger:focus-within .mega-panel {
            display: grid;
        }

        .mega-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius);
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
            border: 1px solid transparent;
        }

        .mega-item:hover {
            background: var(--color-bg);
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .mega-icon {
            width: 44px;
            height: 44px;
            background: var(--color-primary-light);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 1.1rem;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .mega-item:hover .mega-icon {
            background: var(--color-primary);
            color: #fff;
            transform: scale(1.05);
        }

        .mega-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .mega-label {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-dark);
            line-height: 1.3;
        }

        .mega-desc {
            font-size: 0.78rem;
            color: var(--color-muted);
            line-height: 1.4;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius);
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            font-size: 1.3rem;
            color: var(--color-body);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

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

        @media (max-width: 1024px) {
            .nav-toggle {
                display: flex;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                gap: 0;
                padding: var(--spacing-sm);
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                max-height: 70vh;
                overflow-y: auto;
                z-index: 999;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links>li>a {
                display: flex;
                width: 100%;
                padding: 14px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
                justify-content: space-between;
            }

            .mega-panel {
                position: static;
                transform: none;
                display: none;
                min-width: auto;
                box-shadow: none;
                border: none;
                padding: 0 0 0 16px;
                margin-top: 0;
                grid-template-columns: 1fr;
                gap: 2px;
                background: transparent;
            }

            .mega-trigger.open-mobile .mega-panel {
                display: grid;
            }

            .mega-item {
                padding: 10px 12px;
            }

            .mega-icon {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }

            .header-inner {
                height: 60px;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 1.1rem;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }

            .header-inner {
                height: 56px;
                gap: var(--spacing-sm);
            }

            .container-custom {
                padding: 0 12px;
            }
        }

        /* ===== BREADCRUMB ===== */
        .breadcrumb-section {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            padding: 14px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.875rem;
            color: var(--color-muted);
        }

        .breadcrumb a {
            color: var(--color-muted);
            transition: color var(--transition-fast);
            font-weight: 500;
        }

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

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

        .breadcrumb .current {
            color: var(--color-dark);
            font-weight: 600;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ===== ARTICLE MAIN LAYOUT ===== */
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: var(--spacing-xl);
            padding: var(--spacing-xl) 0 var(--spacing-2xl);
        }

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
        }

        /* ===== ARTICLE HEADER ===== */
        .article-header {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.82rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 50px;
            margin-bottom: var(--spacing);
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
        }

        .article-category-badge:hover {
            background: var(--color-primary);
            color: #fff;
        }

        .article-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-dark);
            line-height: 1.35;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing);
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            font-size: 0.875rem;
            color: var(--color-muted);
            padding-bottom: var(--spacing);
            border-bottom: 1px solid var(--color-border-light);
        }

        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta-item i {
            color: var(--color-primary);
            font-size: 0.85rem;
        }

        .article-read-time {
            background: var(--color-accent-light);
            color: var(--color-accent-hover);
            padding: 3px 10px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.8rem;
        }

        /* ===== ARTICLE COVER ===== */
        .article-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin: var(--spacing-md) 0 var(--spacing);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            background: var(--color-dark-light);
        }

        .article-cover img {
            width: 100%;
            height: auto;
            max-height: 520px;
            object-fit: cover;
            display: block;
        }

        /* ===== ARTICLE CONTENT ===== */
        .article-body {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            margin-top: var(--spacing-md);
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--color-body);
            word-break: break-word;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-dark);
            margin: var(--spacing-lg) 0 var(--spacing);
            padding-bottom: var(--spacing-sm);
            border-bottom: 2px solid var(--color-primary-light);
            letter-spacing: -0.01em;
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-dark);
            margin: var(--spacing-md) 0 var(--spacing-sm);
            line-height: 1.4;
        }

        .article-content p {
            margin-bottom: var(--spacing);
            text-align: justify;
        }

        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: var(--spacing-md) auto;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }

        .article-content ul,
        .article-content ol {
            margin: var(--spacing) 0;
            padding-left: 1.5em;
        }

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

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

        .article-content li {
            margin-bottom: var(--spacing-xs);
            line-height: 1.7;
        }

        .article-content blockquote {
            border-left: 4px solid var(--color-primary);
            background: var(--color-primary-light);
            padding: var(--spacing) var(--spacing-md);
            margin: var(--spacing-md) 0;
            border-radius: 0 var(--radius) var(--radius) 0;
            color: var(--color-dark-light);
            font-style: italic;
        }

        .article-content a {
            color: var(--color-primary);
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: all var(--transition-fast);
        }

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

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: var(--spacing-md) 0;
            font-size: 0.9rem;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--color-border);
            padding: 10px 14px;
            text-align: left;
        }

        .article-content table th {
            background: var(--color-bg);
            font-weight: 700;
            color: var(--color-dark);
        }

        .article-content code {
            background: #f1f5f9;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: #e11d48;
        }

        .article-content pre {
            background: var(--color-dark);
            color: #e2e8f0;
            padding: var(--spacing-md);
            border-radius: var(--radius);
            overflow-x: auto;
            margin: var(--spacing-md) 0;
            font-size: 0.875rem;
            line-height: 1.6;
        }

        .article-content pre code {
            background: none;
            color: inherit;
            padding: 0;
        }

        /* ===== ARTICLE FOOTER INFO ===== */
        .article-footer-info {
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--color-border-light);
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing);
            align-items: center;
        }

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

        .article-tags-label {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-dark);
            margin-right: 4px;
        }

        .article-tag {
            display: inline-block;
            background: var(--color-bg);
            color: var(--color-muted);
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 500;
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }

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

        /* ===== NOT FOUND STATE ===== */
        .not-found-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-3xl) var(--spacing-lg);
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            min-height: 400px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: var(--spacing);
        }

        .not-found-icon {
            width: 80px;
            height: 80px;
            background: var(--color-bg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--color-muted-light);
            margin-bottom: var(--spacing-sm);
        }

        .not-found-card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-dark);
        }

        .not-found-card p {
            color: var(--color-muted);
            max-width: 480px;
            line-height: 1.7;
        }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
            text-decoration: none;
        }

        .btn-back:hover {
            background: var(--color-primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 86, 219, 0.4);
            color: #fff;
        }

        /* ===== SIDEBAR ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            position: sticky;
            top: 88px;
            align-self: start;
        }

        @media (max-width: 1024px) {
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing);
            }
        }

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

        .sidebar-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }

        .sidebar-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: var(--spacing);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.01em;
        }

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

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

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

        .sidebar-post-item:hover {
            padding-left: 4px;
        }

        .sidebar-post-thumb {
            width: 70px;
            height: 56px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--color-bg);
            border: 1px solid var(--color-border-light);
        }

        .sidebar-post-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .sidebar-post-title {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-dark);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
            margin-bottom: 4px;
        }

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

        .sidebar-post-date {
            font-size: 0.75rem;
            color: var(--color-muted-light);
        }

        /* CTA Sidebar Card */
        .sidebar-cta-card {
            background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-light) 100%);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            color: #fff;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: none;
        }

        .sidebar-cta-card h4 {
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 8px;
        }

        .sidebar-cta-card h4 i {
            color: var(--color-accent);
        }

        .sidebar-cta-card p {
            font-size: 0.85rem;
            color: #cbd5e1;
            margin-bottom: var(--spacing);
            line-height: 1.5;
        }

        .sidebar-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #1e293b;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.88rem;
            transition: all var(--transition);
            text-decoration: none;
        }

        .sidebar-cta-btn:hover {
            background: #fbbf24;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
            color: #1e293b;
        }

        /* ===== RELATED POSTS SECTION ===== */
        .related-section {
            padding: var(--spacing-xl) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }

        .section-header h2 {
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--color-dark);
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }

        .section-header .section-subtitle {
            font-size: 0.9rem;
            color: var(--color-muted);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        @media (max-width: 900px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 560px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        .related-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary-light);
        }

        .related-card-image {
            width: 100%;
            height: 180px;
            overflow: hidden;
            background: var(--color-bg);
            position: relative;
        }

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

        .related-card:hover .related-card-image img {
            transform: scale(1.06);
        }

        .related-card-body {
            padding: var(--spacing);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-category {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-primary);
            background: var(--color-primary-light);
            padding: 3px 10px;
            border-radius: 50px;
            margin-bottom: 8px;
            align-self: flex-start;
        }

        .related-card-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-dark);
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
            transition: color var(--transition-fast);
        }

        .related-card:hover .related-card-title {
            color: var(--color-primary);
        }

        .related-card-date {
            font-size: 0.78rem;
            color: var(--color-muted-light);
            margin-top: auto;
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-dark) 0%, #1e3a5f 50%, var(--color-dark-light) 100%);
            padding: var(--spacing-2xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 50%, rgba(26, 86, 219, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(245, 158, 11, 0.1) 0%, transparent 50%);
            pointer-events: none;
        }

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

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-sm);
        }

        .cta-section p {
            color: #cbd5e1;
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto var(--spacing-md);
            line-height: 1.6;
        }

        .cta-btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--color-accent);
            color: #1e293b;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
            text-decoration: none;
            letter-spacing: 0.01em;
        }

        .cta-btn-primary:hover {
            background: #fbbf24;
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(245, 158, 11, 0.5);
            color: #1e293b;
        }

        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 1.4rem;
            }

            .cta-section p {
                font-size: 0.9rem;
            }

            .article-title {
                font-size: 1.5rem;
            }
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--color-dark);
            color: #cbd5e1;
            padding: var(--spacing-2xl) 0 var(--spacing-md);
            font-size: 0.9rem;
            border-top: 3px solid var(--color-primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
        }

        .footer-desc {
            line-height: 1.7;
            color: #94a3b8;
            font-size: 0.88rem;
        }

        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.01em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid #334155;
            color: #64748b;
            font-size: 0.82rem;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing);
            }

            .article-header {
                padding: var(--spacing);
            }

            .article-body {
                padding: var(--spacing);
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1e6ef0;
            --color-primary-dark: #164db0;
            --color-primary-light: #60a5fa;
            --color-accent: #ef4444;
            --color-accent-hover: #dc2626;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --color-shadow-md: 0 4px 6px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.04);
            --color-shadow-lg: 0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
            --color-shadow-xl: 0 20px 50px rgba(0,0,0,0.12), 0 8px 20px rgba(0,0,0,0.06);
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --transition-fast: 180ms ease;
            --transition-base: 260ms ease;
            --transition-slow: 380ms ease;
            --max-width: 1200px;
            --nav-height: 72px;
        }

        *,
        *::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: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
        }

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

        /* ===== HEADER & NAV ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--color-shadow);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            transition: opacity var(--transition-fast);
            letter-spacing: -0.01em;
        }

        .logo-link:hover {
            opacity: 0.85;
            color: var(--color-primary-dark);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.15rem;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(30, 110, 240, 0.3);
        }

        .nav-links {
            display: flex;
            list-style: none;
            align-items: center;
            gap: 6px;
        }

        .nav-links>li {
            position: relative;
        }

        .nav-links>li>a {
            display: flex;
            align-items: center;
            gap: 5px;
            padding: 10px 16px;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links>li>a:hover {
            color: var(--color-primary);
            background: rgba(30, 110, 240, 0.05);
        }

        .nav-links>li>a.active {
            color: var(--color-primary);
            background: rgba(30, 110, 240, 0.08);
            font-weight: 600;
        }

        /* Mega Menu */
        .mega-trigger {
            position: relative;
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 10px);
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--color-shadow-xl);
            border: 1px solid var(--color-border);
            padding: 12px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 8px;
            min-width: 420px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all var(--transition-base);
            z-index: 1001;
        }

        .mega-trigger:hover .mega-panel,
        .mega-panel:hover {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }

        .mega-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-lg);
            transition: all var(--transition-fast);
            text-decoration: none;
            color: var(--color-text);
        }

        .mega-item:hover {
            background: rgba(30, 110, 240, 0.05);
            transform: translateX(3px);
        }

        .mega-icon {
            width: 40px;
            height: 40px;
            background: rgba(30, 110, 240, 0.08);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 1rem;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .mega-item:hover .mega-icon {
            background: var(--color-primary);
            color: #fff;
        }

        .mega-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .mega-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-text);
        }

        .mega-desc {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            line-height: 1.4;
        }

        /* Mobile Menu */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

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

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

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

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

        .breadcrumb-list .separator {
            font-size: 0.7rem;
            color: var(--color-text-muted);
        }

        .breadcrumb-list .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* ===== BANNER ===== */
        .category-banner {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 40%, #1a5fd4 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 64px 0;
            color: #fff;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 23, 42, 0.55);
            z-index: 1;
        }

        .category-banner .container-custom {
            position: relative;
            z-index: 2;
        }

        .banner-content {
            max-width: 680px;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            margin-bottom: 18px;
        }

        .banner-content h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .banner-content .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            margin-bottom: 24px;
            max-width: 520px;
        }

        .banner-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .banner-stat-item {
            display: flex;
            flex-direction: column;
        }

        .banner-stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .banner-stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== SECTION ===== */
        .section {
            padding: 60px 0;
        }

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

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            background: rgba(30, 110, 240, 0.07);
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

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

        .section-header p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto;
        }

        /* ===== LIVE CARDS ===== */
        .live-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

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

        .live-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--color-shadow-lg);
            border-color: var(--color-border);
        }

        .live-card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #e2e8f0;
        }

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

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

        .live-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            z-index: 2;
        }

        .tag-live {
            background: #ef4444;
            color: #fff;
            animation: pulse-dot 2s infinite;
        }

        .tag-hot {
            background: #f97316;
            color: #fff;
        }

        .tag-upcoming {
            background: #6366f1;
            color: #fff;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
            }
        }

        .live-card-viewers {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background: rgba(0, 0, 0, 0.7);
            color: #fff;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 5px;
            z-index: 2;
        }

        .live-card-body {
            padding: 16px 18px;
        }

        .live-card-league {
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--color-primary);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }

        .live-card-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.45;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .live-card-time {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .live-card-time i {
            color: var(--color-primary);
            font-size: 0.7rem;
        }

        /* ===== CATEGORY CARDS ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .cat-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--color-shadow);
            transition: all var(--transition-base);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }

        .cat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--color-shadow-lg);
            border-color: var(--color-primary-light);
        }

        .cat-card-icon {
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, rgba(30, 110, 240, 0.1), rgba(30, 110, 240, 0.05));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-primary);
            transition: all var(--transition-fast);
        }

        .cat-card:hover .cat-card-icon {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(30, 110, 240, 0.35);
        }

        .cat-card h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
        }

        .cat-card span {
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        /* ===== FEATURES ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

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

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

        .feature-icon-box {
            width: 48px;
            height: 48px;
            background: rgba(30, 110, 240, 0.08);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--color-primary);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .feature-card:hover .feature-icon-box {
            background: var(--color-primary);
            color: #fff;
        }

        .feature-text h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .feature-text p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
        }

        /* ===== STATS BAND ===== */
        .stats-band {
            background: linear-gradient(135deg, #0f172a, #1e3a5f);
            padding: 48px 0;
            color: #fff;
        }

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

        .stat-block .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 8px;
            background: linear-gradient(135deg, #60a5fa, #93c5fd);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-block .stat-desc {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question i {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-fast);
        }

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

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

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

        .faq-answer-inner {
            padding: 0 22px 18px 22px;
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1e6ef0, #164db0);
            padding: 56px 0;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 280px;
            height: 280px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -70px;
            width: 220px;
            height: 220px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .container-custom {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--color-primary);
            padding: 14px 32px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
            background: #f8fafc;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 24px;
        }

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

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

        .footer-desc {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.6;
            max-width: 300px;
        }

        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

        .footer-col ul li a {
            font-size: 0.85rem;
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #60a5fa;
        }

        .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: 0.82rem;
            color: #64748b;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .live-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .banner-content h1 {
                font-size: 2rem;
            }
            .mega-panel {
                min-width: 340px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px;
                gap: 4px;
                box-shadow: var(--color-shadow-lg);
                border-bottom: 1px solid var(--color-border);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: all var(--transition-base);
                z-index: 999;
                max-height: 70vh;
                overflow-y: auto;
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .nav-links>li>a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
            }

            .mega-panel {
                position: static;
                transform: none;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                box-shadow: none;
                border: none;
                padding: 4px 0 4px 20px;
                grid-template-columns: 1fr;
                min-width: unset;
                display: none;
                background: transparent;
            }

            .mega-trigger.open-mega .mega-panel {
                display: grid;
            }

            .mobile-toggle {
                display: block;
            }

            .live-grid {
                grid-template-columns: 1fr;
            }
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .banner-content h1 {
                font-size: 1.6rem;
            }
            .banner-stats {
                gap: 20px;
            }
            .banner-stat-num {
                font-size: 1.5rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .category-banner {
                padding: 40px 0;
            }
        }

        @media (max-width: 520px) {
            .cat-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .banner-content h1 {
                font-size: 1.35rem;
            }
            .banner-badge {
                font-size: 0.72rem;
                padding: 4px 10px;
            }
            .banner-content .banner-subtitle {
                font-size: 0.9rem;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .btn-cta-primary {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

        /* Focus accessibility */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

/* roulang page: category2 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --accent: #f97316;
            --accent-dark: #ea580c;
            --bg: #f8fafc;
            --bg-white: #ffffff;
            --text: #1e293b;
            --text-light: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow: 0 4px 16px rgba(0,0,0,0.07);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
        }
        *{box-sizing:border-box;margin:0;padding:0;}
        html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
        body{font-family:'Inter','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;line-height:1.7;color:var(--text);background:var(--bg);overflow-x:hidden;}
        a{text-decoration:none;color:inherit;transition:color 0.2s ease;}
        img{max-width:100%;height:auto;display:block;}
        button,input,select,textarea{font-family:inherit;font-size:inherit;}
        .container-custom{max-width:1280px;margin:0 auto;padding:0 24px;}
        @media(max-width:768px){.container-custom{padding:0 16px;}}

        /* Header & Navigation */
        .site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,0.95);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);transition:box-shadow 0.3s ease;}
        .site-header.scrolled{box-shadow:var(--shadow);}
        .header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px;}
        .logo{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;color:var(--primary);white-space:nowrap;letter-spacing:-0.02em;text-decoration:none;}
        .logo i{font-size:1.5rem;color:var(--accent);}
        .logo:hover{color:var(--primary-dark);}
        .nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
        .nav-links>li{position:relative;}
        .nav-links>li>a{display:inline-flex;align-items:center;gap:6px;padding:10px 16px;border-radius:8px;font-weight:500;font-size:0.95rem;color:var(--text);transition:all 0.2s ease;white-space:nowrap;cursor:pointer;}
        .nav-links>li>a:hover{color:var(--primary);background:rgba(37,99,235,0.06);}
        .nav-links>li>a.active{color:var(--primary);background:rgba(37,99,235,0.1);font-weight:600;}
        .nav-links>li>a i{font-size:0.7rem;transition:transform 0.25s ease;}

        /* Mega Menu */
        .mega-trigger{position:relative;}
        .mega-panel{position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(8px);background:#fff;border-radius:var(--radius-xl);box-shadow:0 20px 60px rgba(0,0,0,0.15);border:1px solid var(--border);padding:16px;min-width:420px;display:grid;grid-template-columns:1fr 1fr;gap:6px;opacity:0;visibility:hidden;pointer-events:none;transition:all 0.25s cubic-bezier(0.4,0,0.2,1);z-index:1001;}
        .mega-trigger:hover .mega-panel,
        .mega-panel:hover{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0);}
        .mega-trigger:hover>a i{transform:rotate(180deg);}
        .mega-item{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;border-radius:10px;transition:all 0.2s ease;text-decoration:none;color:var(--text);}
        .mega-item:hover{background:rgba(37,99,235,0.05);color:var(--primary);}
        .mega-icon{width:40px;height:40px;border-radius:10px;background:rgba(37,99,235,0.08);display:flex;align-items:center;justify-content:center;font-size:1rem;color:var(--primary);flex-shrink:0;transition:all 0.2s ease;}
        .mega-item:hover .mega-icon{background:var(--primary);color:#fff;}
        .mega-info{display:flex;flex-direction:column;gap:2px;}
        .mega-label{font-weight:600;font-size:0.9rem;line-height:1.3;}
        .mega-desc{font-size:0.78rem;color:var(--text-light);line-height:1.4;}

        /* Mobile Nav Toggle */
        .nav-toggle{display:none;background:none;border:none;font-size:1.5rem;color:var(--text);cursor:pointer;padding:6px;border-radius:8px;transition:all 0.2s ease;}
        .nav-toggle:hover{color:var(--primary);background:rgba(37,99,235,0.06);}
        .mobile-nav-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);z-index:999;opacity:0;transition:opacity 0.3s ease;}
        .mobile-nav-overlay.active{opacity:1;}

        @media(max-width:1024px){
            .nav-toggle{display:flex;align-items:center;justify-content:center;}
            .nav-links{position:fixed;top:0;right:-320px;width:300px;height:100vh;background:#fff;flex-direction:column;align-items:stretch;padding:80px 20px 20px;gap:0;box-shadow:-4px 0 30px rgba(0,0,0,0.15);transition:right 0.35s cubic-bezier(0.4,0,0.2,1);z-index:1000;overflow-y:auto;}
            .nav-links.active{right:0;}
            .nav-links>li>a{padding:14px 16px;border-radius:10px;font-size:1rem;}
            .mega-panel{position:static;transform:none;box-shadow:none;border:none;padding:0 0 0 12px;min-width:auto;grid-template-columns:1fr;opacity:1;visibility:visible;pointer-events:auto;display:none;margin-top:4px;}
            .mega-trigger.open .mega-panel{display:grid;}
            .mega-trigger>a{cursor:pointer;}
            .mobile-nav-overlay{display:block;pointer-events:none;}
            .mobile-nav-overlay.active{pointer-events:auto;}
            .header-inner{height:60px;}
        }
        @media(max-width:520px){
            .nav-links{width:100%;right:-100%;}
            .logo{font-size:1.15rem;}
            .logo i{font-size:1.25rem;}
        }

        /* Page Banner */
        .page-banner{position:relative;background:linear-gradient(135deg,rgba(15,23,42,0.88) 0%,rgba(30,58,138,0.82) 40%,rgba(37,99,235,0.75) 100%),url('/assets/images/backpic/back-2.png') center/cover no-repeat;padding:80px 0 70px;text-align:center;color:#fff;overflow:hidden;}
        .page-banner::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 30% 50%,rgba(249,115,22,0.2) 0%,transparent 60%);pointer-events:none;}
        .page-banner .container-custom{position:relative;z-index:2;}
        .page-banner .banner-badge{display:inline-block;padding:6px 18px;border-radius:50px;background:rgba(255,255,255,0.15);backdrop-filter:blur(8px);font-size:0.85rem;font-weight:500;letter-spacing:0.04em;margin-bottom:18px;border:1px solid rgba(255,255,255,0.2);}
        .page-banner h1{font-size:2.8rem;font-weight:900;letter-spacing:-0.03em;line-height:1.2;margin-bottom:14px;}
        .page-banner .banner-desc{font-size:1.15rem;color:rgba(255,255,255,0.85);max-width:650px;margin:0 auto;line-height:1.7;}
        @media(max-width:768px){
            .page-banner{padding:56px 0 48px;}
            .page-banner h1{font-size:1.9rem;}
            .page-banner .banner-desc{font-size:0.95rem;}
        }
        @media(max-width:520px){
            .page-banner{padding:44px 0 36px;}
            .page-banner h1{font-size:1.5rem;}
        }

        /* Section Styles */
        .section{padding:64px 0;}
        .section-sm{padding:40px 0;}
        .section-title{font-size:1.75rem;font-weight:800;letter-spacing:-0.02em;color:var(--text);margin-bottom:8px;}
        .section-subtitle{font-size:0.95rem;color:var(--text-light);margin-bottom:32px;}
        @media(max-width:768px){.section{padding:44px 0;}.section-sm{padding:28px 0;}.section-title{font-size:1.4rem;}}

        /* Category Filter Chips */
        .filter-chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;}
        .filter-chip{padding:8px 18px;border-radius:50px;font-size:0.88rem;font-weight:500;background:#fff;border:1.5px solid var(--border);color:var(--text);cursor:pointer;transition:all 0.2s ease;white-space:nowrap;user-select:none;}
        .filter-chip:hover{border-color:var(--primary-light);color:var(--primary);background:rgba(37,99,235,0.03);}
        .filter-chip.active{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600;}
        @media(max-width:520px){.filter-chips{gap:8px;}.filter-chip{padding:6px 14px;font-size:0.8rem;}}

        /* Article Card */
        .article-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);transition:all 0.3s ease;display:flex;flex-direction:column;height:100%;}
        .article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-light);}
        .article-card-img{position:relative;overflow:hidden;aspect-ratio:16/10;background:#f1f5f9;}
        .article-card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease;}
        .article-card:hover .article-card-img img{transform:scale(1.06);}
        .article-card-tag{position:absolute;top:14px;left:14px;padding:5px 12px;border-radius:50px;font-size:0.75rem;font-weight:600;background:var(--accent);color:#fff;z-index:1;letter-spacing:0.02em;}
        .article-card-body{padding:20px;flex:1;display:flex;flex-direction:column;gap:10px;}
        .article-card-category{font-size:0.78rem;color:var(--primary);font-weight:600;text-transform:uppercase;letter-spacing:0.05em;}
        .article-card-title{font-size:1.1rem;font-weight:700;line-height:1.4;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
        .article-card-title a{color:inherit;text-decoration:none;}
        .article-card-title a:hover{color:var(--primary);}
        .article-card-excerpt{font-size:0.88rem;color:var(--text-light);line-height:1.6;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
        .article-card-meta{display:flex;align-items:center;gap:14px;font-size:0.78rem;color:var(--text-muted);margin-top:auto;padding-top:12px;border-top:1px solid var(--border-light);}
        .article-card-meta span{display:flex;align-items:center;gap:4px;}

        /* Grid Layout */
        .articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
        @media(max-width:1024px){.articles-grid{grid-template-columns:repeat(2,1fr);gap:20px;}}
        @media(max-width:600px){.articles-grid{grid-template-columns:1fr;gap:16px;}}

        /* Sidebar */
        .content-layout{display:grid;grid-template-columns:1fr 340px;gap:32px;align-items:start;}
        @media(max-width:1024px){.content-layout{grid-template-columns:1fr;}}
        .sidebar-card{background:#fff;border-radius:var(--radius-lg);border:1px solid var(--border);padding:24px;margin-bottom:24px;}
        .sidebar-card h4{font-size:1.05rem;font-weight:700;margin-bottom:16px;color:var(--text);letter-spacing:-0.01em;}
        .sidebar-card:last-child{margin-bottom:0;}

        /* Hot Topics List */
        .hot-topic-item{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--border-light);transition:all 0.2s ease;text-decoration:none;color:var(--text);}
        .hot-topic-item:last-child{border-bottom:none;padding-bottom:0;}
        .hot-topic-item:hover{color:var(--primary);}
        .hot-topic-rank{width:28px;height:28px;border-radius:8px;background:rgba(37,99,235,0.08);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.85rem;color:var(--primary);flex-shrink:0;}
        .hot-topic-rank.top{background:var(--accent);color:#fff;}
        .hot-topic-info{flex:1;min-width:0;}
        .hot-topic-info .hot-topic-title{font-size:0.9rem;font-weight:500;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
        .hot-topic-views{font-size:0.75rem;color:var(--text-muted);margin-top:2px;}

        /* Tag Cloud */
        .tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
        .tag-cloud a{display:inline-block;padding:6px 14px;border-radius:50px;font-size:0.8rem;font-weight:500;background:rgba(37,99,235,0.05);color:var(--primary);transition:all 0.2s ease;text-decoration:none;}
        .tag-cloud a:hover{background:var(--primary);color:#fff;}

        /* Stats Band */
        .stats-band{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 60%,var(--primary-light) 100%);padding:52px 0;color:#fff;position:relative;overflow:hidden;}
        .stats-band::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 70% 30%,rgba(249,115,22,0.3) 0%,transparent 50%);pointer-events:none;}
        .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;z-index:2;}
        @media(max-width:768px){.stats-grid{grid-template-columns:repeat(2,1fr);gap:20px;}}
        @media(max-width:520px){.stats-grid{grid-template-columns:1fr 1fr;gap:16px;}}
        .stat-item{text-align:center;padding:8px;}
        .stat-number{font-size:2.6rem;font-weight:900;letter-spacing:-0.03em;line-height:1;}
        .stat-label{font-size:0.9rem;opacity:0.85;margin-top:6px;}

        /* Subscribe CTA */
        .cta-card{background:#fff;border-radius:var(--radius-xl);border:2px solid var(--border);padding:40px 36px;text-align:center;box-shadow:var(--shadow);}
        .cta-card h3{font-size:1.5rem;font-weight:800;margin-bottom:8px;color:var(--text);}
        .cta-card p{color:var(--text-light);margin-bottom:22px;font-size:0.95rem;}
        .cta-form{display:flex;gap:10px;max-width:500px;margin:0 auto;flex-wrap:wrap;justify-content:center;}
        .cta-form input{flex:1;min-width:220px;padding:12px 18px;border-radius:50px;border:1.5px solid var(--border);font-size:0.9rem;outline:none;transition:border-color 0.2s ease;background:#f8fafc;}
        .cta-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.1);}
        .btn{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:50px;font-weight:600;font-size:0.9rem;cursor:pointer;transition:all 0.25s ease;border:none;text-decoration:none;white-space:nowrap;letter-spacing:0.01em;}
        .btn-primary{background:var(--primary);color:#fff;}
        .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 8px 24px rgba(37,99,235,0.35);}
        .btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary);}
        .btn-outline:hover{background:var(--primary);color:#fff;}

        /* FAQ */
        .faq-list{max-width:800px;margin:0 auto;}
        .faq-item{border-bottom:1px solid var(--border);}
        .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:18px 8px;font-size:1rem;font-weight:600;color:var(--text);background:none;border:none;cursor:pointer;text-align:left;gap:12px;transition:color 0.2s ease;}
        .faq-question:hover{color:var(--primary);}
        .faq-question i{font-size:0.8rem;transition:transform 0.3s ease;color:var(--text-muted);flex-shrink:0;}
        .faq-item.open .faq-question i{transform:rotate(180deg);color:var(--primary);}
        .faq-item.open .faq-question{color:var(--primary);}
        .faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease,padding 0.4s ease;padding:0 8px;}
        .faq-item.open .faq-answer{max-height:300px;padding-bottom:18px;}
        .faq-answer p{font-size:0.9rem;color:var(--text-light);line-height:1.7;}

        /* Footer */
        .site-footer{background:var(--dark-900);color:#cbd5e1;padding:56px 0 28px;}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px;}
        @media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:24px;}}
        @media(max-width:520px){.footer-grid{grid-template-columns:1fr;gap:20px;}}
        .footer-brand{font-size:1.3rem;font-weight:800;color:#fff;margin-bottom:10px;letter-spacing:-0.02em;}
        .footer-desc{font-size:0.85rem;line-height:1.7;color:#94a3b8;max-width:300px;}
        .footer-col h5{font-size:0.9rem;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:0.02em;}
        .footer-col ul{list-style:none;padding:0;margin:0;}
        .footer-col ul li{margin-bottom:8px;}
        .footer-col ul li a{font-size:0.85rem;color:#94a3b8;transition:color 0.2s ease;text-decoration:none;}
        .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:#64748b;}

        /* Load More Button */
        .load-more-wrap{text-align:center;margin-top:32px;}

        /* Pulse animation for live indicator */
        @keyframes pulse-dot{0%,100%{opacity:1;transform:scale(1);}50%{opacity:0.5;transform:scale(0.8);}}
        .pulse-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#22c55e;animation:pulse-dot 2s ease-in-out infinite;margin-right:4px;}