/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #C41E3A;
            --color-primary-dark: #A0182F;
            --color-primary-light: #E83A4F;
            --color-accent: #F5A623;
            --color-accent-dark: #D4891A;
            --color-accent-light: #FFC145;
            --color-dark: #0F0F1A;
            --color-dark-2: #1A1A2E;
            --color-dark-3: #25253D;
            --color-light: #F8F9FA;
            --color-light-2: #EDEDF0;
            --color-text: #1A1A2E;
            --color-text-light: #FFFFFF;
            --color-text-muted: #6B7280;
            --color-border: #D1D5DB;
            --color-success: #10B981;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.16);
            --shadow-xl: 0 24px 64px rgba(0,0,0,0.20);
            --space-xs: 4px;
            --space-sm: 8px;
            --space-md: 16px;
            --space-lg: 24px;
            --space-xl: 32px;
            --space-2xl: 48px;
            --space-3xl: 64px;
            --space-4xl: 96px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.6;
            color: var(--color-text);
            background: var(--color-light);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--color-primary-dark); }
        a:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; border-radius: 4px; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        button:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; border-radius: 4px; }
        input, textarea { font-family: inherit; font-size: 1rem; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--color-dark); }
        h1 { font-size: 2.75rem; }
        h2 { font-size: 2.25rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.125rem; }

        /* ===== Container ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-lg);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--color-dark);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0 var(--space-lg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            position: relative;
        }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: var(--space-xl);
            flex: 1;
        }
        .nav-right { justify-content: flex-end; }
        .nav-center {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }
        .site-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-text-light);
            letter-spacing: 1px;
            white-space: nowrap;
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .site-logo:hover { opacity: 0.9; color: var(--color-accent); }
        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255,255,255,0.75);
            padding: var(--space-sm) 0;
            position: relative;
            transition: color var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width var(--transition);
        }
        .nav-link:hover { color: var(--color-text-light); }
        .nav-link:hover::after { width: 100%; }
        .nav-link.active { color: var(--color-accent); }
        .nav-link.active::after { width: 100%; background: var(--color-accent); }
        .nav-cta {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: var(--color-text-light) !important;
            padding: var(--space-sm) var(--space-lg);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(196,30,58,0.4);
        }
        .nav-cta::after { display: none; }
        .mobile-toggle { display: none; flex-direction: column; gap: 5px; padding: var(--space-sm); cursor: pointer; background: none; border: none; }
        .mobile-toggle span { display: block; width: 26px; height: 2px; background: var(--color-text-light); border-radius: 2px; transition: var(--transition); }
        .mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .mobile-toggle.active span:nth-child(2) { opacity: 0; }
        .mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--color-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.4;
            transform: scale(1.05);
            transition: transform 0.6s ease;
        }
        .hero:hover .hero-bg { transform: scale(1.0); }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,15,26,0.92) 0%, rgba(26,26,46,0.80) 50%, rgba(15,15,26,0.92) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
            padding: var(--space-2xl) var(--space-lg);
        }
        .hero-badge {
            display: inline-block;
            background: rgba(245,166,35,0.15);
            border: 1px solid rgba(245,166,35,0.3);
            color: var(--color-accent-light);
            font-size: 0.85rem;
            font-weight: 600;
            padding: var(--space-sm) var(--space-lg);
            border-radius: 50px;
            margin-bottom: var(--space-lg);
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--color-text-light);
            margin-bottom: var(--space-lg);
            line-height: 1.15;
            letter-spacing: -0.5px;
        }
        .hero-title span { background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero-sub {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.7);
            margin-bottom: var(--space-2xl);
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }
        .hero-actions { display: flex; gap: var(--space-md); justify-content: center; flex-wrap: wrap; }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: var(--space-sm);
            padding: var(--space-md) var(--space-2xl);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: var(--color-text-light);
            box-shadow: 0 4px 16px rgba(196,30,58,0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(196,30,58,0.5);
            color: var(--color-text-light);
        }
        .btn-secondary {
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.2);
            color: var(--color-text-light);
            backdrop-filter: blur(4px);
        }
        .btn-secondary:hover {
            background: rgba(255,255,255,0.15);
            transform: translateY(-2px);
            color: var(--color-text-light);
        }
        .hero-stats {
            display: flex;
            gap: var(--space-2xl);
            justify-content: center;
            margin-top: var(--space-3xl);
            padding-top: var(--space-2xl);
            border-top: 1px solid rgba(255,255,255,0.08);
            flex-wrap: wrap;
        }
        .hero-stat { text-align: center; }
        .hero-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent-light);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            margin-top: var(--space-xs);
        }

        /* ===== Section Common ===== */
        .section {
            padding: var(--space-4xl) 0;
        }
        .section-dark {
            background: var(--color-dark-2);
            color: var(--color-text-light);
        }
        .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--color-text-light); }
        .section-light { background: var(--color-light); }
        .section-white { background: var(--color-text-light); }
        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto var(--space-3xl);
        }
        .section-header h2 { margin-bottom: var(--space-md); }
        .section-header p {
            color: var(--color-text-muted);
            font-size: 1.1rem;
            line-height: 1.7;
        }
        .section-dark .section-header p { color: rgba(255,255,255,0.6); }
        .section-tag {
            display: inline-block;
            background: rgba(196,30,58,0.08);
            color: var(--color-primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: var(--space-xs) var(--space-md);
            border-radius: 50px;
            margin-bottom: var(--space-md);
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .section-dark .section-tag { background: rgba(245,166,35,0.12); color: var(--color-accent-light); }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-2xl);
        }
        .feature-card {
            background: var(--color-text-light);
            border-radius: var(--radius-md);
            padding: var(--space-2xl);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid rgba(0,0,0,0.04);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .section-dark .feature-card { background: var(--color-dark-3); border-color: rgba(255,255,255,0.06); }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: var(--space-lg);
            color: var(--color-text-light);
        }
        .feature-icon.red { background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light)); }
        .feature-icon.gold { background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light)); }
        .feature-icon.dark { background: linear-gradient(135deg, var(--color-dark-2), var(--color-dark-3)); }
        .feature-card h3 { margin-bottom: var(--space-sm); }
        .feature-card p { color: var(--color-text-muted); line-height: 1.7; font-size: 0.95rem; }
        .section-dark .feature-card p { color: rgba(255,255,255,0.65); }

        /* ===== Categories ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-2xl);
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--color-dark-2);
            min-height: 300px;
            display: flex;
            align-items: flex-end;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: var(--shadow-md);
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-xl);
        }
        .category-card-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.5;
            transition: transform 0.5s ease, opacity 0.3s ease;
        }
        .category-card:hover .category-card-bg { transform: scale(1.06); opacity: 0.6; }
        .category-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15,15,26,0.95) 0%, rgba(15,15,26,0.2) 100%);
        }
        .category-card-content {
            position: relative;
            z-index: 2;
            padding: var(--space-2xl);
            width: 100%;
        }
        .category-card-content h3 {
            color: var(--color-text-light);
            font-size: 1.4rem;
            margin-bottom: var(--space-sm);
        }
        .category-card-content p {
            color: rgba(255,255,255,0.65);
            font-size: 0.95rem;
            margin-bottom: var(--space-lg);
            max-width: 360px;
        }
        .category-link {
            display: inline-flex;
            align-items: center;
            gap: var(--space-sm);
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.95rem;
            transition: gap var(--transition);
        }
        .category-link:hover { gap: var(--space-md); color: var(--color-accent-light); }
        .category-link i { font-size: 0.85rem; }

        /* ===== Stats / Data ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-2xl);
            text-align: center;
        }
        .stat-item { padding: var(--space-xl); }
        .stat-number {
            font-size: 2.75rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-label {
            color: rgba(255,255,255,0.6);
            font-size: 1rem;
            margin-top: var(--space-sm);
            font-weight: 500;
        }
        .stat-divider { width: 40px; height: 2px; background: rgba(245,166,35,0.3); margin: var(--space-md) auto 0; }

        /* ===== News / Posts ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-2xl);
        }
        .news-card {
            background: var(--color-text-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid rgba(0,0,0,0.04);
        }
        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .news-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--color-light-2);
        }
        .news-card-body { padding: var(--space-xl); }
        .news-card-cat {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(196,30,58,0.08);
            padding: var(--space-xs) var(--space-sm);
            border-radius: 4px;
            margin-bottom: var(--space-sm);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .news-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: var(--space-sm);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-excerpt {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: var(--space-md);
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }
        .news-card-meta i { margin-right: 4px; }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: var(--space-3xl);
            color: var(--color-text-muted);
            font-size: 1.05rem;
            background: rgba(0,0,0,0.02);
            border-radius: var(--radius-md);
            border: 1px dashed var(--color-border);
        }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            border-bottom: 1px solid rgba(0,0,0,0.06);
            padding: var(--space-lg) 0;
        }
        .section-dark .faq-item { border-bottom-color: rgba(255,255,255,0.06); }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-dark);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            padding: var(--space-sm) 0;
            transition: color var(--transition);
        }
        .section-dark .faq-question { color: var(--color-text-light); }
        .faq-question:hover { color: var(--color-primary); }
        .section-dark .faq-question:hover { color: var(--color-accent); }
        .faq-question i { transition: transform var(--transition); color: var(--color-text-muted); font-size: 0.9rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--color-text-muted);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .section-dark .faq-answer { color: rgba(255,255,255,0.65); }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-top: var(--space-md);
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: var(--color-dark);
            overflow: hidden;
            padding: var(--space-4xl) 0;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--color-text-light);
            margin-bottom: var(--space-md);
        }
        .cta-content p {
            color: rgba(255,255,255,0.65);
            font-size: 1.1rem;
            margin-bottom: var(--space-2xl);
            line-height: 1.7;
        }
        .cta-actions { display: flex; gap: var(--space-md); justify-content: center; flex-wrap: wrap; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-dark);
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: var(--space-3xl) 0 var(--space-xl);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--space-2xl);
            margin-bottom: var(--space-2xl);
        }
        .footer-brand .site-logo { font-size: 1.3rem; }
        .footer-brand p {
            color: rgba(255,255,255,0.5);
            font-size: 0.9rem;
            margin-top: var(--space-md);
            max-width: 300px;
            line-height: 1.7;
        }
        .footer-col h4 {
            color: var(--color-text-light);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: var(--space-lg);
        }
        .footer-col ul li { margin-bottom: var(--space-sm); }
        .footer-col ul li a {
            color: rgba(255,255,255,0.5);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover { color: var(--color-accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: var(--space-xl);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--space-md);
        }
        .footer-bottom p {
            color: rgba(255,255,255,0.35);
            font-size: 0.85rem;
        }
        .footer-socials { display: flex; gap: var(--space-md); }
        .footer-socials a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.4);
            transition: background var(--transition), color var(--transition);
            font-size: 1.1rem;
        }
        .footer-socials a:hover { background: var(--color-primary); color: var(--color-text-light); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-title { font-size: 2.75rem; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .mobile-toggle { display: flex; }
            .nav-left, .nav-right { display: none; }
            .nav-center { position: static; transform: none; }
            .header-inner { justify-content: space-between; }
            .mobile-menu-open .nav-left,
            .mobile-menu-open .nav-right {
                display: flex;
                flex-direction: column;
                align-items: center;
                gap: var(--space-md);
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--color-dark);
                padding: var(--space-xl) var(--space-lg);
                border-bottom: 1px solid rgba(255,255,255,0.06);
                box-shadow: var(--shadow-lg);
            }
            .mobile-menu-open .nav-left { z-index: 1001; }
            .mobile-menu-open .nav-right { top: auto; position: relative; }
            .hero { min-height: 70vh; }
            .hero-title { font-size: 2rem; }
            .hero-sub { font-size: 1rem; }
            .features-grid { grid-template-columns: 1fr; }
            .categories-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
            .stat-number { font-size: 2rem; }
            .footer-grid { grid-template-columns: 1fr; text-align: center; }
            .footer-brand p { max-width: 100%; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section { padding: var(--space-3xl) 0; }
            .hero-stats { gap: var(--space-xl); }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.75rem; }
            .cta-content h2 { font-size: 1.75rem; }
        }
        @media (max-width: 520px) {
            .header-inner { height: 64px; }
            .site-logo { font-size: 1.2rem; }
            .hero-title { font-size: 1.6rem; }
            .hero-sub { font-size: 0.9rem; }
            .hero-stats { flex-direction: column; gap: var(--space-lg); }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
            .stat-item { padding: var(--space-md); }
            .stat-number { font-size: 1.6rem; }
            .btn { padding: var(--space-sm) var(--space-lg); font-size: 0.9rem; }
            .feature-card { padding: var(--space-xl); }
            .category-card { min-height: 240px; }
            .category-card-content { padding: var(--space-xl); }
            .news-card-body { padding: var(--space-lg); }
            .section { padding: var(--space-2xl) 0; }
            .container { padding: 0 var(--space-md); }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2a4a7f;
            --accent: #f4a261;
            --accent-light: #f8c291;
            --bg-dark: #0d1b2a;
            --bg-dark-alt: #1b2d44;
            --bg-light: #f8f9fa;
            --bg-card: #ffffff;
            --text-light: #f1faee;
            --text-dark: #1d3557;
            --text-muted: #6c757d;
            --text-soft: #a8b2c9;
            --border-color: #e0e4e8;
            --border-light: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.16);
            --shadow-glow: 0 0 30px rgba(230, 57, 70, 0.25);
            --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-light);
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: var(--text-dark);
            font-weight: 700;
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2.1rem;
            margin-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.1rem;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
            padding: 4px 16px;
            border-radius: 50px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 620px;
            line-height: 1.7;
        }
        .text-center {
            text-align: center;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .mb-48 {
            margin-bottom: 48px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            transition: all var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.25);
        }
        .btn-light {
            background: #fff;
            color: var(--secondary);
            border-color: #fff;
        }
        .btn-light:hover {
            background: var(--bg-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.10);
        }
        .btn-lg {
            padding: 16px 44px;
            font-size: 1.1rem;
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(230, 57, 70, 0.10);
            color: var(--primary);
        }
        .badge-hot {
            background: var(--primary);
            color: #fff;
        }
        .badge-new {
            background: #2ec4b6;
            color: #fff;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border-color);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 24px;
        }
        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .card-text {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 500;
            padding: 2px 12px;
            border-radius: 50px;
            background: var(--bg-light);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(13, 27, 42, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.30);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-center {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
        }
        .site-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            text-decoration: none;
        }
        .site-logo:hover {
            opacity: 0.85;
        }
        .nav-link {
            font-size: 0.92rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            padding: 6px 16px;
            border-radius: 50px;
            transition: all var(--transition);
            text-decoration: none;
            position: relative;
        }
        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-link.active {
            color: #fff;
            background: rgba(230, 57, 70, 0.25);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-cta {
            background: var(--primary) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            font-weight: 600;
        }
        .nav-cta:hover {
            background: var(--primary-dark) !important;
            box-shadow: 0 4px 18px rgba(230, 57, 70, 0.40);
            transform: translateY(-1px);
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: none;
            border: none;
            cursor: pointer;
            z-index: 1001;
        }
        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 4px;
            transition: all var(--transition);
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            padding: 100px 0 80px;
            background: var(--bg-dark);
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.30;
            z-index: 0;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.88) 0%, rgba(13, 27, 42, 0.60) 60%, transparent 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            color: #fff;
        }
        .category-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .category-hero h1 span {
            color: var(--primary-light);
        }
        .category-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.80);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 20px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.60);
        }

        /* ===== Category Tabs ===== */
        .cat-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 40px;
            background: #fff;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .cat-tab {
            padding: 8px 22px;
            font-size: 0.92rem;
            font-weight: 500;
            border-radius: 50px;
            background: var(--bg-light);
            color: var(--text-muted);
            border: 1px solid transparent;
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .cat-tab:hover {
            background: rgba(230, 57, 70, 0.06);
            color: var(--primary);
        }
        .cat-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.30);
        }

        /* ===== Featured Matches ===== */
        .match-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .match-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: all var(--transition);
        }
        .match-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .match-info {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .match-league {
            font-size: 0.78rem;
            color: var(--text-muted);
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .match-teams {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
        }
        .match-time {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .match-odds {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .odds-item {
            padding: 4px 14px;
            background: var(--bg-light);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--secondary);
            border: 1px solid var(--border-color);
        }
        .odds-item.highlight {
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            border-color: rgba(230, 57, 70, 0.20);
        }
        .match-status {
            font-size: 0.72rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            padding: 2px 10px;
            border-radius: 50px;
            background: #2ec4b6;
            color: #fff;
            display: inline-block;
        }
        .match-status.live {
            background: var(--primary);
            animation: pulse-dot 1.6s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }

        /* ===== Data & Stats Section ===== */
        .stat-block {
            background: var(--bg-dark);
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
        }
        .stat-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .stat-block .container {
            position: relative;
            z-index: 1;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item .number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .desc {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.70);
            margin-top: 4px;
        }

        /* ===== How It Works ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .step-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 32px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            margin: 0 auto 16px;
        }
        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            width: 100%;
            text-align: left;
            border: none;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(230, 57, 70, 0.03);
        }
        .faq-question i {
            transition: transform var(--transition);
            color: var(--text-muted);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2.4rem;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.1rem;
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
            border-top: 1px solid var(--border-light);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .site-logo {
            font-size: 1.4rem;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.60);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: all var(--transition);
            text-decoration: none;
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 28px;
            border-top: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-socials {
            display: flex;
            gap: 12px;
        }
        .footer-socials a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.50);
            font-size: 1rem;
            transition: all var(--transition);
            text-decoration: none;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-socials a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-hero h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .nav-left,
            .nav-right {
                display: none;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(13, 27, 42, 0.98);
                backdrop-filter: blur(12px);
                padding: 16px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.40);
            }
            .nav-left.open,
            .nav-right.open {
                display: flex;
            }
            .nav-left {
                top: var(--header-height);
            }
            .nav-right {
                top: calc(var(--header-height) + 180px);
            }
            .nav-left .nav-link,
            .nav-right .nav-link {
                padding: 10px 16px;
                font-size: 1rem;
                width: 100%;
            }
            .nav-center {
                position: relative;
                left: auto;
                top: auto;
                transform: none;
            }
            .header-inner {
                justify-content: space-between;
            }
            .mobile-toggle {
                display: flex;
            }
            .category-hero {
                padding: 70px 0 50px;
                min-height: 280px;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat .num {
                font-size: 1.4rem;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .match-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .section-padding {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .stat-block {
                padding: 32px 20px;
            }
            .cat-tabs {
                padding: 10px 12px;
                gap: 6px;
            }
            .cat-tab {
                padding: 6px 14px;
                font-size: 0.82rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .cta-btns {
                flex-direction: column;
                align-items: center;
            }
            .btn-lg {
                padding: 14px 32px;
                font-size: 1rem;
                width: 100%;
                max-width: 280px;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f1a2e;
            --primary-light: #1a2a44;
            --secondary: #d4a038;
            --secondary-light: #e8b84a;
            --secondary-dark: #b8892a;
            --accent: #e85d3a;
            --bg-body: #f4f6f9;
            --bg-card: #ffffff;
            --bg-dark: #0b1424;
            --text-primary: #1a2332;
            --text-secondary: #4a5568;
            --text-light: #8a94a6;
            --text-white: #ffffff;
            --border: #e2e6ee;
            --border-light: #f0f2f6;
            --shadow-sm: 0 2px 8px rgba(15, 26, 46, 0.06);
            --shadow-md: 0 6px 24px rgba(15, 26, 46, 0.10);
            --shadow-lg: 0 16px 48px rgba(15, 26, 46, 0.14);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-base: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.28s cubic-bezier(0.22, 1, 0.36, 1);
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            padding-top: var(--header-height);
        }
        a { color: var(--secondary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--secondary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: clamp(1.8rem, 4vw, 3rem); }
        h2 { font-size: clamp(1.5rem, 2.8vw, 2.2rem); }
        h3 { font-size: clamp(1.2rem, 1.8vw, 1.5rem); }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section { padding: 80px 0; }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p {
            margin-top: 12px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            color: var(--text-light);
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(15, 26, 46, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(212, 160, 56, 0.15);
            z-index: 1000;
            transition: background var(--transition);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-center {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }
        .site-logo {
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .site-logo:hover {
            background: linear-gradient(135deg, var(--secondary-light), #f0c860);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-link {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255,255,255,0.75);
            transition: all var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--text-white);
            background: rgba(212, 160, 56, 0.10);
        }
        .nav-link.active {
            color: var(--secondary);
            background: rgba(212, 160, 56, 0.12);
        }
        .nav-link.nav-cta {
            background: var(--secondary);
            color: var(--primary);
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }
        .nav-link.nav-cta:hover {
            background: var(--secondary-light);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(212, 160, 56, 0.30);
        }
        .nav-link.nav-cta i { margin-right: 6px; }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            z-index: 1001;
        }
        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-white);
            border-radius: 4px;
            transition: all var(--transition);
        }
        .mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .mobile-toggle.active span:nth-child(2) { opacity: 0; }
        .mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        /* ===== Hero / Article Banner ===== */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .article-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.30;
            z-index: 0;
        }
        .article-hero .container {
            position: relative;
            z-index: 1;
        }
        .article-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15,26,46,0.70) 0%, rgba(15,26,46,0.92) 100%);
            z-index: 0;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            margin-bottom: 20px;
        }
        .article-breadcrumb a { color: var(--secondary); }
        .article-breadcrumb a:hover { color: var(--secondary-light); }
        .article-breadcrumb span { color: rgba(255,255,255,0.6); }
        .article-category-badge {
            display: inline-block;
            padding: 4px 16px;
            background: var(--secondary);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .article-hero h1 {
            color: var(--text-white);
            max-width: 800px;
            margin-bottom: 16px;
            line-height: 1.25;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
        }
        .article-meta i { margin-right: 6px; color: var(--secondary); }
        .article-meta span { display: inline-flex; align-items: center; }

        /* ===== Article Content ===== */
        .article-content-wrap {
            background: var(--bg-body);
            padding: 60px 0 40px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
        }
        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 40px 48px;
            box-shadow: var(--shadow-sm);
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-body p {
            margin-bottom: 1.4rem;
            color: var(--text-secondary);
        }
        .article-body h2, .article-body h3 {
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
        }
        .article-body ul, .article-body ol {
            padding-left: 1.5rem;
            margin-bottom: 1.4rem;
            color: var(--text-secondary);
        }
        .article-body ul { list-style: disc; }
        .article-body ol { list-style: decimal; }
        .article-body li { margin-bottom: 0.4rem; }
        .article-body blockquote {
            border-left: 4px solid var(--secondary);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(212, 160, 56, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-not-found i {
            font-size: 3.5rem;
            color: var(--text-light);
            margin-bottom: 20px;
        }
        .article-not-found h2 {
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .btn-back-home {
            display: inline-block;
            padding: 12px 32px;
            background: var(--secondary);
            color: var(--primary);
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .btn-back-home:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(212, 160, 56, 0.30);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h4 {
            font-size: 1.05rem;
            margin-bottom: 16px;
            color: var(--text-primary);
            position: relative;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-light);
        }
        .sidebar-card h4::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--secondary);
        }
        .sidebar-post-item {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-post-item:last-child { border-bottom: none; padding-bottom: 0; }
        .sidebar-post-item img {
            width: 70px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .sidebar-post-info h5 {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .sidebar-post-info h5 a { color: var(--text-primary); }
        .sidebar-post-info h5 a:hover { color: var(--secondary); }
        .sidebar-post-info .date {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* ===== Tags & Share ===== */
        .article-footer-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }
        .article-footer-tags .label {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.9rem;
        }
        .tag-item {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(212, 160, 56, 0.10);
            color: var(--secondary-dark);
            font-size: 0.82rem;
            border-radius: 20px;
            transition: all var(--transition);
        }
        .tag-item:hover {
            background: var(--secondary);
            color: var(--primary);
        }
        .share-buttons {
            display: flex;
            gap: 10px;
            margin-left: auto;
        }
        .share-btn {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--border-light);
            color: var(--text-secondary);
            transition: all var(--transition);
            font-size: 0.95rem;
        }
        .share-btn:hover {
            background: var(--secondary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== Related Posts ===== */
        .related-section {
            background: var(--bg-card);
            padding: 60px 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .related-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 20px 24px 24px;
        }
        .related-card-body .cat {
            font-size: 0.78rem;
            color: var(--secondary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .related-card-body h4 {
            font-size: 1.05rem;
            margin: 8px 0 10px;
        }
        .related-card-body h4 a { color: var(--text-primary); }
        .related-card-body h4 a:hover { color: var(--secondary); }
        .related-card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 0;
        }

        /* ===== Data / Stats Block ===== */
        .stats-block {
            background: var(--bg-dark);
            padding: 60px 0;
            position: relative;
        }
        .stats-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .stats-block .container { position: relative; z-index: 1; }
        .stats-block .section-title h2 { color: var(--text-white); }
        .stats-block .section-title p { color: rgba(255,255,255,0.5); }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 20px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255,255,255,0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.06);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255,255,255,0.08);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            padding: 70px 0;
            text-align: center;
        }
        .cta-section h2 {
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.65);
            max-width: 600px;
            margin: 0 auto 32px;
            font-size: 1.05rem;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-block;
            padding: 14px 36px;
            background: var(--secondary);
            color: var(--primary);
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            border: none;
        }
        .btn-primary:hover {
            background: var(--secondary-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(212, 160, 56, 0.35);
        }
        .btn-outline {
            display: inline-block;
            padding: 14px 36px;
            background: transparent;
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255,255,255,0.25);
            transition: all var(--transition);
        }
        .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            transform: translateY(-2px);
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--bg-card);
            padding: 60px 0;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-body);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: rgba(212, 160, 56, 0.20); }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background var(--transition);
            user-select: none;
        }
        .faq-question:hover { background: rgba(212, 160, 56, 0.04); }
        .faq-question i {
            color: var(--secondary);
            transition: transform var(--transition);
            font-size: 0.85rem;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.35s ease;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .faq-item.open .faq-answer {
            padding: 0 24px 18px;
            max-height: 300px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer-brand .site-logo {
            font-size: 1.5rem;
            display: inline-block;
            margin-bottom: 14px;
        }
        .footer-brand p {
            color: rgba(255,255,255,0.45);
            font-size: 0.92rem;
            line-height: 1.7;
            max-width: 380px;
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 1rem;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--secondary);
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            color: rgba(255,255,255,0.5);
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .footer-col ul li a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-col ul li a i { margin-right: 8px; width: 16px; color: var(--secondary); }
        .footer-bottom {
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom p {
            color: rgba(255,255,255,0.35);
            font-size: 0.85rem;
            margin-bottom: 0;
        }
        .footer-socials { display: flex; gap: 14px; }
        .footer-socials a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.4);
            font-size: 1rem;
            transition: all var(--transition);
        }
        .footer-socials a:hover {
            background: var(--secondary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .nav-left, .nav-right { display: none; }
            .mobile-toggle { display: flex; }
            .nav-center { position: relative; left: auto; transform: none; }
            .header-inner { justify-content: space-between; }
            .mobile-menu-open .nav-left,
            .mobile-menu-open .nav-right {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: rgba(15, 26, 46, 0.98);
                backdrop-filter: blur(16px);
                padding: 20px 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(212, 160, 56, 0.10);
                z-index: 999;
            }
            .mobile-menu-open .nav-left { top: var(--header-height); }
            .mobile-menu-open .nav-right { top: calc(var(--header-height) + 220px); }
            .mobile-menu-open .nav-link { padding: 12px 16px; width: 100%; }
            .article-main { padding: 28px 20px; }
            .article-hero { padding: 60px 0 40px; }
            .article-hero h1 { font-size: 1.6rem; }
            .related-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .stat-number { font-size: 1.8rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .article-sidebar { grid-template-columns: 1fr; }
            .section { padding: 50px 0; }
            .share-buttons { margin-left: 0; margin-top: 12px; }
            .article-footer-tags { flex-direction: column; align-items: flex-start; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-main { padding: 20px 16px; }
            .stats-grid { grid-template-columns: 1fr; }
            .cta-buttons { flex-direction: column; align-items: center; }
            .btn-primary, .btn-outline { width: 100%; text-align: center; }
            .article-meta { flex-direction: column; gap: 8px; align-items: flex-start; }
        }