/* roulang page: index */
:root {
            --brand: #d4a843;
            --brand-dark: #b8912e;
            --brand-light: #e8c565;
            --brand-pale: #fdf6e8;
            --deep: #0f1923;
            --deep-light: #1a2432;
            --deep-surface: #15202b;
            --surface: #ffffff;
            --surface-alt: #f8f9fb;
            --surface-muted: #f1f3f6;
            --text-primary: #1a1a2e;
            --text-secondary: #5a6470;
            --text-muted: #8b919b;
            --border: #e5e7eb;
            --border-light: #f0f1f3;
            --radius-sm: 0.5rem;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-card-hover: 0 10px 28px rgba(0,0,0,0.10), 0 4px 10px rgba(0,0,0,0.06);
            --shadow-nav: 0 1px 0 rgba(255,255,255,0.06) inset, 0 2px 8px rgba(0,0,0,0.15);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
        }

        *, *::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', 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px; line-height: 1.7; color: var(--text-primary);
            background: var(--surface-alt); min-height: 100vh; overflow-x: hidden;
        }

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

        .container { width: 100%; max-width: 1220px; margin: 0 auto; padding: 0 24px; }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: var(--deep); border-bottom: 1px solid rgba(255,255,255,0.07);
            box-shadow: var(--shadow-nav); transition: background var(--transition-base);
        }
        .site-header.scrolled { background: rgba(15,25,35,0.97); backdrop-filter: blur(12px); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; gap: 20px; }
        .logo-area { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .logo-icon { width: 38px; height: 38px; background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 18px; color: #fff; letter-spacing: -0.5px; }
        .logo-text { font-size: 1.2rem; font-weight: 700; color: #ffffff; letter-spacing: -0.3px; white-space: nowrap; }
        .logo-text span { color: var(--brand); }
        .nav-links { display: flex; align-items: center; gap: 6px; }
        .nav-links a {
            display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px;
            border-radius: 8px; font-size: 0.92rem; font-weight: 500; color: #c5ccd6;
            transition: all var(--transition-fast); white-space: nowrap;
        }
        .nav-links a:hover { color: #ffffff; background: rgba(255,255,255,0.06); }
        .nav-links a.active { color: var(--brand); background: rgba(212,168,67,0.1); font-weight: 600; }
        .nav-links a .nav-badge { font-size: 0.7rem; background: var(--brand); color: #0f1923; padding: 2px 7px; border-radius: 10px; font-weight: 700; letter-spacing: 0.3px; }
        .header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .search-box { display: flex; align-items: center; background: rgba(255,255,255,0.07); border-radius: 22px; padding: 7px 14px; gap: 8px; border: 1px solid rgba(255,255,255,0.1); transition: all var(--transition-fast); }
        .search-box:focus-within { background: rgba(255,255,255,0.12); border-color: var(--brand); box-shadow: 0 0 0 3px rgba(212,168,67,0.1); }
        .search-box input { background: transparent; border: none; color: #fff; font-size: 0.88rem; width: 140px; outline: none; }
        .search-box input::placeholder { color: rgba(255,255,255,0.4); }
        .search-box i { color: rgba(255,255,255,0.5); font-size: 0.85rem; }
        .btn-nav { padding: 9px 20px; border-radius: 22px; font-size: 0.88rem; font-weight: 600; letter-spacing: 0.2px; transition: all var(--transition-fast); white-space: nowrap; }
        .btn-nav-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.3); }
        .btn-nav-outline:hover { border-color: #fff; background: rgba(255,255,255,0.06); }
        .btn-nav-brand { background: var(--brand); color: #0f1923; border: 1.5px solid var(--brand); }
        .btn-nav-brand:hover { background: var(--brand-dark); border-color: var(--brand-dark); transform: translateY(-1px); box-shadow: var(--btn); }
        .mobile-menu-btn { display: none; background: none; border: none; color: #fff; font-size: 1.4rem; padding: 6px; cursor: pointer; }

        /* ========== HERO ========== */
        .hero-section {
            position: relative; min-height: 620px; display: flex; align-items: center;
            justify-content: center; text-align: center; overflow: hidden;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            margin-top: 0; padding-top: 80px; padding-bottom: 60px;
        }
        .hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15,25,35,0.88) 0%, rgba(15,25,35,0.78) 50%, rgba(15,25,35,0.92) 100%); z-index: 1; }
        .hero-content { position: relative; z-index: 2; max-width: 720px; padding: 0 24px; }
        .hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(212,168,67,0.15); border: 1px solid rgba(212,168,67,0.3); color: var(--brand-light); padding: 7px 16px; border-radius: 20px; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 20px; }
        .hero-badge .dot { width: 7px; height: 7px; background: var(--brand); border-radius: 50%; animation: pulse-dot 2s infinite; }
        @keyframes pulse-dot { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(1.6)} }
        .hero-title { font-size: 3.2rem; font-weight: 900; color: #ffffff; line-height: 1.2; letter-spacing: -0.8px; margin-bottom: 18px; }
        .hero-title em { font-style: normal; color: var(--brand); position: relative; }
        .hero-desc { font-size: 1.12rem; color: #c5ccd6; line-height: 1.7; margin-bottom: 30px; max-width: 560px; margin-left: auto; margin-right: auto; }
        .hero-btns { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
        .btn-hero { padding: 14px 32px; border-radius: 28px; font-size: 1rem; font-weight: 700; letter-spacing: 0.3px; transition: all var(--transition-base); display: inline-flex; align-items: center; gap: 8px; }
        .btn-hero-primary { background: var(--brand); color: #0f1923; border: 2px solid var(--brand); }
        .btn-hero-primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 8px 26px rgba(212,168,67,0.35); }
        .btn-hero-secondary { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.4); }
        .btn-hero-secondary:hover { border-color: #fff; background: rgba(255,255,255,0.08); transform: translateY(-2px); }
        .hero-stats { display: flex; gap: 36px; justify-content: center; margin-top: 40px; flex-wrap: wrap; }
        .hero-stat { text-align: center; }
        .hero-stat-num { font-size: 2rem; font-weight: 800; color: var(--brand); letter-spacing: -0.5px; }
        .hero-stat-label { font-size: 0.85rem; color: #9aa3af; margin-top: 2px; }

        /* ========== SECTIONS ========== */
        .section { padding: 70px 0; }
        .section-header { text-align: center; margin-bottom: 48px; }
        .section-label { display: inline-block; font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--brand-dark); background: var(--brand-pale); padding: 6px 14px; border-radius: 16px; margin-bottom: 12px; }
        .section-title { font-size: 2.1rem; font-weight: 800; color: var(--text-primary); letter-spacing: -0.5px; margin-bottom: 10px; }
        .section-subtitle { font-size: 1rem; color: var(--text-secondary); max-width: 560px; margin: 0 auto; line-height: 1.6; }

        /* ========== FEATURE CARDS ========== */
        .features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .feature-card { background: var(--surface); border-radius: var(--radius-xl); padding: 32px 24px; border: 1px solid var(--border-light); transition: all var(--transition-base); position: relative; overflow: hidden; }
        .feature-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--brand); transform: scaleX(0); transform-origin: left; transition: transform var(--transition-base); border-radius: 0 0 3px 3px; }
        .feature-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-3px); border-color: transparent; }
        .feature-card:hover::before { transform: scaleX(1); }
        .feature-icon { width: 50px; height: 50px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 16px; background: var(--brand-pale); color: var(--brand-dark); }
        .feature-card h3 { font-size: 1.08rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
        .feature-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

        /* ========== CATEGORY ENTRY ========== */
        .category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .category-card { position: relative; border-radius: var(--radius-xl); overflow: hidden; background: var(--deep-light); cursor: pointer; transition: all var(--transition-base); display: block; }
        .category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .category-card-img { width: 100%; height: 200px; object-fit: cover; transition: transform var(--transition-slow); }
        .category-card:hover .category-card-img { transform: scale(1.06); }
        .category-card-body { position: absolute; bottom: 0; left: 0; right: 0; padding: 24px; background: linear-gradient(transparent, rgba(15,25,35,0.9) 40%); }
        .category-card-tag { display: inline-block; font-size: 0.75rem; font-weight: 700; background: var(--brand); color: #0f1923; padding: 3px 10px; border-radius: 10px; margin-bottom: 8px; letter-spacing: 0.5px; }
        .category-card h3 { font-size: 1.15rem; font-weight: 700; color: #fff; }
        .category-card p { font-size: 0.85rem; color: #c5ccd6; margin-top: 4px; }

        /* ========== STATS RIBBON ========== */
        .stats-ribbon { background: var(--deep); padding: 48px 0; }
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
        .stat-item {}
        .stat-number { font-size: 2.6rem; font-weight: 900; color: var(--brand); letter-spacing: -1px; line-height: 1; }
        .stat-label { font-size: 0.9rem; color: #9aa3af; margin-top: 6px; font-weight: 500; }

        /* ========== CMS NEWS LIST ========== */
        .news-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
        .news-card { display: flex; gap: 16px; background: var(--surface); border-radius: var(--radius-lg); padding: 16px; border: 1px solid var(--border-light); transition: all var(--transition-base); align-items: flex-start; }
        .news-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-2px); border-color: transparent; }
        .news-card-img { width: 120px; height: 90px; border-radius: 10px; object-fit: cover; flex-shrink: 0; }
        .news-card-content { flex: 1; min-width: 0; }
        .news-card-tag { font-size: 0.75rem; font-weight: 600; color: var(--brand-dark); background: var(--brand-pale); padding: 2px 8px; border-radius: 8px; display: inline-block; margin-bottom: 6px; }
        .news-card h4 { font-size: 0.98rem; font-weight: 700; color: var(--text-primary); line-height: 1.4; margin-bottom: 4px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-card p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-card-meta { font-size: 0.78rem; color: var(--text-muted); margin-top: 6px; }
        .news-empty { text-align: center; padding: 40px; color: var(--text-muted); font-size: 0.95rem; grid-column: 1 / -1; }

        /* ========== PROCESS STEPS ========== */
        .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .process-step { text-align: center; position: relative; }
        .process-step-num { width: 52px; height: 52px; border-radius: 50%; background: var(--brand); color: #0f1923; font-weight: 900; font-size: 1.3rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; position: relative; z-index: 2; }
        .process-step h4 { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 6px; }
        .process-step p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; }
        .process-step::after { content: ''; position: absolute; top: 26px; left: calc(50% + 30px); width: calc(100% - 40px); height: 2px; background: var(--border); z-index: 1; }
        .process-step:last-child::after { display: none; }

        /* ========== FAQ ========== */
        .faq-list { max-width: 760px; margin: 0 auto; }
        .faq-item { background: var(--surface); border-radius: var(--radius-lg); margin-bottom: 12px; border: 1px solid var(--border-light); overflow: hidden; transition: all var(--transition-fast); }
        .faq-item:hover { border-color: var(--border); }
        .faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; background: none; font-weight: 600; font-size: 1rem; color: var(--text-primary); cursor: pointer; text-align: left; gap: 12px; }
        .faq-question i { color: var(--brand); font-size: 0.9rem; transition: transform var(--transition-fast); flex-shrink: 0; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .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; font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }

        /* ========== CTA ========== */
        .cta-section { background: var(--deep); padding: 60px 0; text-align: center; }
        .cta-inner { max-width: 560px; margin: 0 auto; padding: 0 24px; }
        .cta-title { font-size: 2rem; font-weight: 800; color: #fff; letter-spacing: -0.5px; margin-bottom: 12px; }
        .cta-desc { font-size: 1rem; color: #c5ccd6; margin-bottom: 26px; line-height: 1.6; }
        .btn-cta { padding: 14px 36px; border-radius: 28px; font-size: 1rem; font-weight: 700; background: var(--brand); color: #0f1923; letter-spacing: 0.3px; transition: all var(--transition-base); display: inline-flex; align-items: center; gap: 8px; border: 2px solid var(--brand); }
        .btn-cta:hover { background: var(--brand-dark); border-color: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(212,168,67,0.4); }

        /* ========== FOOTER ========== */
        .site-footer { background: var(--deep-surface); padding: 48px 0 24px; border-top: 1px solid rgba(255,255,255,0.06); }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 32px; margin-bottom: 32px; }
        .footer-brand .logo-text { font-size: 1.1rem; margin-bottom: 8px; display: inline-block; }
        .footer-brand p { font-size: 0.85rem; color: #8b919b; line-height: 1.6; }
        .footer-col h4 { font-size: 0.9rem; font-weight: 700; color: #fff; margin-bottom: 14px; letter-spacing: 0.3px; }
        .footer-col a { display: block; font-size: 0.85rem; color: #8b919b; padding: 4px 0; transition: color var(--transition-fast); }
        .footer-col a:hover { color: var(--brand); }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.82rem; color: #6b7280; }
        .footer-bottom a { color: #8b919b; }
        .footer-bottom a:hover { color: var(--brand); }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a { width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: #8b919b; font-size: 0.9rem; transition: all var(--transition-fast); }
        .footer-social a:hover { background: var(--brand); color: #0f1923; transform: translateY(-2px); }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .category-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .process-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
            .process-step::after { display: none; }
            .news-list { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .hero-title { font-size: 2.5rem; }
            .section-title { font-size: 1.75rem; }
            .search-box input { width: 100px; }
            .nav-links a { padding: 8px 10px; font-size: 0.85rem; }
        }

        @media (max-width: 768px) {
            .header-inner { height: 56px; }
            .nav-links { display: none; position: absolute; top: 56px; left: 0; right: 0; background: var(--deep); flex-direction: column; padding: 12px 16px; gap: 2px; border-top: 1px solid rgba(255,255,255,0.07); box-shadow: 0 8px 20px rgba(0,0,0,0.3); }
            .nav-links.open { display: flex; }
            .nav-links a { width: 100%; padding: 12px 14px; border-radius: 8px; }
            .mobile-menu-btn { display: block; }
            .header-actions .search-box { display: none; }
            .header-actions .btn-nav-outline { display: none; }
            .hero-section { min-height: 500px; padding-top: 70px; }
            .hero-title { font-size: 2rem; }
            .hero-desc { font-size: 0.95rem; }
            .hero-stats { gap: 18px; }
            .hero-stat-num { font-size: 1.5rem; }
            .features-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
            .feature-card { padding: 22px 16px; }
            .category-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .process-grid { grid-template-columns: 1fr 1fr; gap: 22px; }
            .news-list { grid-template-columns: 1fr; }
            .news-card { flex-direction: column; }
            .news-card-img { width: 100%; height: 160px; }
            .section { padding: 48px 0; }
            .section-title { font-size: 1.55rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .btn-hero { padding: 12px 24px; font-size: 0.9rem; }
            .cta-title { font-size: 1.5rem; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero-title { font-size: 1.6rem; letter-spacing: -0.3px; }
            .hero-desc { font-size: 0.88rem; }
            .hero-btns { flex-direction: column; align-items: center; gap: 10px; }
            .hero-stats { gap: 14px; }
            .features-grid { grid-template-columns: 1fr; max-width: 340px; margin: 0 auto; }
            .category-grid { grid-template-columns: 1fr; max-width: 340px; margin: 0 auto; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .stat-number { font-size: 2rem; }
            .process-grid { grid-template-columns: 1fr; max-width: 280px; margin: 0 auto; }
            .section-title { font-size: 1.35rem; }
            .section-header { margin-bottom: 32px; }
            .section { padding: 36px 0; }
            .header-actions .btn-nav-brand { font-size: 0.8rem; padding: 8px 14px; }
            .logo-text { font-size: 1rem; }
            .logo-icon { width: 32px; height: 32px; font-size: 15px; border-radius: 8px; }
        }

        /* ========== UTILITY ========== */
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
        .text-brand { color: var(--brand); }
        .bg-deep { background: var(--deep); }
        .bg-surface { background: var(--surface); }

/* roulang page: category1 */
:root {
            --color-primary: #1a2744;
            --color-primary-dark: #0f1a2e;
            --color-accent: #d4a745;
            --color-accent-light: #e8c96a;
            --color-accent-dark: #b8892e;
            --color-bg: #f5f3ed;
            --color-bg-white: #ffffff;
            --color-bg-dark: #1a2744;
            --color-bg-darker: #0f1a2e;
            --color-bg-card: #ffffff;
            --color-bg-alt: #ede9e0;
            --color-text: #1e293b;
            --color-text-strong: #0f172a;
            --color-text-weak: #64748b;
            --color-text-light: #94a3b8;
            --color-text-on-dark: #e2e8f0;
            --color-text-on-accent: #1a2744;
            --color-border: #e0dcd3;
            --color-border-light: #ede9e0;
            --color-border-strong: #c5bfb0;
            --color-success: #2d7d46;
            --color-warning: #d4a745;
            --color-danger: #c0392b;
            --color-info: #3a6ea5;
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --radius-full: 9999px;
            --shadow-xs: 0 1px 3px rgba(15, 26, 46, 0.06);
            --shadow-sm: 0 2px 8px rgba(15, 26, 46, 0.08);
            --shadow-md: 0 6px 20px rgba(15, 26, 46, 0.10);
            --shadow-lg: 0 14px 40px rgba(15, 26, 46, 0.14);
            --shadow-xl: 0 24px 60px rgba(15, 26, 46, 0.18);
            --shadow-gold: 0 6px 24px rgba(212, 167, 69, 0.25);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', monospace;
            --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --container-narrow: 960px;
            --nav-height: 64px;
            --section-gap: 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: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        a:hover {
            color: var(--color-accent);
        }

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

        button {
            cursor: pointer;
        }

        ul, ol {
            list-style: none;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--color-text-strong);
            line-height: 1.3;
            font-weight: 700;
        }

        h1 { font-size: 2.6rem; letter-spacing: -0.02em; }
        h2 { font-size: 2rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 28px;
        }

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

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

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

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

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            border-radius: var(--radius-xs);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.2rem;
        }

        .logo-text {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .logo-area:hover .logo-text {
            color: var(--color-accent-dark);
        }

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

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 7px;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: var(--color-bg-alt);
        }

        .nav-links a.active {
            color: var(--color-bg-white);
            background: var(--color-primary);
            box-shadow: var(--shadow-sm);
        }

        .nav-links a.active:hover {
            color: var(--color-bg-white);
            background: var(--color-primary-dark);
        }

        .nav-badge {
            font-size: 0.7rem;
            background: var(--color-accent);
            color: var(--color-text-on-accent);
            padding: 2px 8px;
            border-radius: var(--radius-full);
            font-weight: 700;
            letter-spacing: 0.02em;
            animation: badgePulse 2s ease-in-out infinite;
        }

        @keyframes badgePulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.85; transform: scale(1.06); }
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .search-trigger {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

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

        .btn-nav-cta {
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.9rem;
            background: var(--color-accent);
            color: var(--color-text-on-accent);
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-nav-cta:hover {
            background: var(--color-accent-dark);
            box-shadow: var(--shadow-gold);
            transform: translateY(-1px);
            color: var(--color-text-on-accent);
        }

        .mobile-menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border: 1px solid var(--color-border);
            background: var(--color-bg-white);
            cursor: pointer;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 22px;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            background: linear-gradient(170deg, var(--color-primary-dark) 0%, var(--color-primary) 40%, #1e3a5f 100%);
            padding: 70px 0 80px;
            position: relative;
            overflow: hidden;
            color: var(--color-text-on-dark);
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(212, 167, 69, 0.2) 0%, transparent 70%);
            border-radius: 50%;
        }

        .banner-content {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 16px;
        }

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--color-text-light);
            flex-wrap: wrap;
            justify-content: center;
        }

        .banner-breadcrumb a {
            color: var(--color-accent-light);
            transition: color var(--transition-fast);
        }

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

        .banner-breadcrumb .separator {
            color: var(--color-text-light);
            opacity: 0.5;
        }

        .banner-title {
            font-size: 3rem;
            font-weight: 900;
            color: #ffffff;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .banner-title .accent {
            color: var(--color-accent);
        }

        .banner-subtitle {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.8);
            max-width: 600px;
            line-height: 1.6;
        }

        .banner-stats {
            display: flex;
            gap: 40px;
            margin-top: 18px;
            flex-wrap: wrap;
            justify-content: center;
        }

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

        .banner-stat-num {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--color-accent);
            line-height: 1;
        }

        .banner-stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
            margin-top: 4px;
        }

        /* ========== SECTION STYLES ========== */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text-strong);
            margin-bottom: 10px;
        }

        .section-header .section-subtitle {
            color: var(--color-text-weak);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(212, 167, 69, 0.12);
            color: var(--color-accent-dark);
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        /* ========== FILTER BAR ========== */
        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .filter-chip {
            padding: 9px 20px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            border: 2px solid var(--color-border);
            color: var(--color-text-weak);
            background: var(--color-bg-white);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-chip:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-dark);
            background: rgba(212, 167, 69, 0.05);
        }

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

        /* ========== EVENT CARDS GRID ========== */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }

        .event-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .event-card-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--color-bg-alt);
        }

        .event-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }

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

        .event-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.78rem;
            letter-spacing: 0.03em;
            z-index: 2;
        }

        .badge-live {
            background: #c0392b;
            color: #fff;
            animation: livePulse 1.5s ease-in-out infinite;
        }

        @keyframes livePulse {
            0%, 100% { box-shadow: 0 0 0 0 rgba(192, 57, 43, 0.5); }
            50% { box-shadow: 0 0 0 10px rgba(192, 57, 43, 0); }
        }

        .badge-upcoming {
            background: var(--color-accent);
            color: var(--color-text-on-accent);
        }

        .badge-featured {
            background: var(--color-primary);
            color: #fff;
        }

        .event-card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .event-card-category {
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-accent-dark);
        }

        .event-card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-text-strong);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .event-card-title a:hover {
            color: var(--color-accent-dark);
        }

        .event-card-meta {
            display: flex;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--color-text-weak);
            flex-wrap: wrap;
        }

        .event-card-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .event-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
            margin-top: auto;
        }

        .event-card-prize {
            font-weight: 700;
            color: var(--color-accent-dark);
            font-size: 0.95rem;
        }

        .btn-card {
            padding: 7px 16px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.85rem;
            background: var(--color-primary);
            color: #fff;
            transition: all var(--transition-fast);
        }

        .btn-card:hover {
            background: var(--color-primary-dark);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }

        /* ========== RANKING TABLE ========== */
        .ranking-section {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }

        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }

        .ranking-table thead th {
            background: var(--color-bg-alt);
            padding: 14px 16px;
            text-align: left;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-text-weak);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            border-bottom: 2px solid var(--color-border);
        }

        .ranking-table thead th:first-child {
            border-radius: var(--radius-sm) 0 0 0;
        }

        .ranking-table thead th:last-child {
            border-radius: 0 var(--radius-sm) 0 0;
        }

        .ranking-table tbody td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--color-border-light);
            vertical-align: middle;
        }

        .ranking-table tbody tr {
            transition: background var(--transition-fast);
        }

        .ranking-table tbody tr:hover {
            background: rgba(212, 167, 69, 0.04);
        }

        .rank-num {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1rem;
            color: var(--color-text-strong);
        }

        .rank-top-1 { background: linear-gradient(135deg, #f6d365, #d4a745); color: #1a2744; }
        .rank-top-2 { background: #dce3e8; color: #4a5568; }
        .rank-top-3 { background: #e8d5c4; color: #6b4226; }

        .rank-team {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
        }

        .rank-team-avatar {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-full);
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.75rem;
        }

        .rank-points {
            font-weight: 800;
            color: var(--color-accent-dark);
        }

        .rank-change-up { color: var(--color-success); }
        .rank-change-down { color: var(--color-danger); }

        /* ========== NEWS LIST ========== */
        .news-list-horizontal {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 20px;
        }

        .news-card-compact {
            display: flex;
            gap: 16px;
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            padding: 16px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            align-items: flex-start;
        }

        .news-card-compact:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border-strong);
            transform: translateY(-1px);
        }

        .news-card-compact .news-thumb {
            width: 90px;
            height: 70px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--color-bg-alt);
        }

        .news-card-compact .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
            transition: transform var(--transition-slow);
        }

        .news-card-compact:hover .news-thumb img {
            transform: scale(1.08);
        }

        .news-card-compact .news-info {
            flex: 1;
            min-width: 0;
        }

        .news-card-compact .news-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--color-text-strong);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-compact .news-date {
            font-size: 0.78rem;
            color: var(--color-text-light);
            margin-top: 6px;
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }

        .cta-banner > * {
            position: relative;
            z-index: 1;
        }

        .cta-banner h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .cta-banner p {
            color: rgba(255,255,255,0.8);
            font-size: 1.05rem;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-large {
            display: inline-block;
            padding: 14px 38px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            background: var(--color-accent);
            color: var(--color-text-on-accent);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .btn-cta-large:hover {
            background: var(--color-accent-light);
            box-shadow: var(--shadow-gold);
            transform: translateY(-2px);
            color: var(--color-text-on-accent);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text-strong);
            text-align: left;
            cursor: pointer;
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: var(--radius-full);
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            transition: all var(--transition-fast);
            color: var(--color-text-weak);
        }

        .faq-answer {
            padding: 0 24px 18px;
            color: var(--color-text-weak);
            line-height: 1.7;
            font-size: 0.95rem;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open .faq-question {
            color: var(--color-accent-dark);
        }

        .faq-item.open .faq-icon {
            background: var(--color-accent);
            color: var(--color-text-on-accent);
            transform: rotate(45deg);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-bg-darker);
            color: var(--color-text-on-dark);
            padding: 56px 0 28px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            color: var(--color-text-light);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--color-accent);
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-full);
            background: rgba(255,255,255,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: all var(--transition-fast);
            color: var(--color-text-light);
        }

        .footer-social a:hover {
            background: var(--color-accent);
            color: var(--color-text-on-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--color-text-light);
            flex-wrap: wrap;
            gap: 10px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
            .footer-col:last-child {
                grid-column: span 2;
            }
            .events-grid {
                grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
            }
            h1 { font-size: 2.2rem; }
            .banner-title { font-size: 2.4rem; }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--color-bg-white);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 18px;
                border-radius: var(--radius-sm);
                width: 100%;
                justify-content: flex-start;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .header-actions .btn-nav-cta {
                display: none;
            }
            .header-actions .btn-nav-cta-mobile {
                display: inline-block;
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            h1 { font-size: 1.9rem; }
            h2 { font-size: 1.5rem; }
            .banner-title { font-size: 2rem; }
            .banner-stats { gap: 24px; }
            .banner-stat-num { font-size: 1.8rem; }
            .section { padding: 48px 0; }
            .events-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .footer-brand { grid-column: span 2; }
            .footer-col:last-child { grid-column: span 2; }
            .ranking-section { padding: 24px 16px; overflow-x: auto; }
            .ranking-table { font-size: 0.85rem; min-width: 600px; }
            .news-list-horizontal { grid-template-columns: 1fr; }
            .cta-banner { padding: 40px 24px; }
            .cta-banner h2 { font-size: 1.5rem; }
            .filter-bar { gap: 6px; }
            .filter-chip { padding: 7px 14px; font-size: 0.82rem; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .banner-title { font-size: 1.7rem; }
            .banner-stats { gap: 18px; }
            .banner-stat-num { font-size: 1.5rem; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-brand, .footer-col:last-child { grid-column: span 1; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .events-grid { grid-template-columns: 1fr; }
            .event-card-body { padding: 14px 16px; }
            .page-banner { padding: 48px 0 56px; }
            .section-header h2 { font-size: 1.4rem; }
        }

/* roulang page: article */
:root {
            --primary: #0d1b2a;
            --primary-light: #1b2d45;
            --accent: #c9a050;
            --accent-light: #e0c878;
            --accent-dark: #8b6d2f;
            --surface: #ffffff;
            --surface-alt: #f7f5f0;
            --surface-dark: #0d1b2a;
            --text: #1a1a1a;
            --text-secondary: #5a5a5a;
            --text-light: #8a8a8a;
            --text-on-dark: #e8e6e0;
            --border: #e0dcd4;
            --border-light: #eeeae2;
            --danger: #c0392b;
            --danger-light: #e74c3c;
            --success: #2e7d32;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 3px rgba(13,27,42,0.06);
            --shadow-sm: 0 2px 8px rgba(13,27,42,0.08);
            --shadow: 0 4px 20px rgba(13,27,42,0.10);
            --shadow-lg: 0 8px 40px rgba(13,27,42,0.14);
            --shadow-xl: 0 16px 56px rgba(13,27,42,0.18);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --font-display: 'Georgia', 'Noto Serif SC', 'STSong', serif;
            --max-width: 1240px;
            --nav-height: 68px;
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.7;
            color: var(--text);
            background: #fcfbf8;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            text-decoration: none;
            color: inherit;
            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 {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            width: 100%;
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .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-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-xs);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 20px;
        }

        .logo-text {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            border-radius: var(--radius);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(13,27,42,0.04);
        }

        .nav-links a.active {
            color: var(--primary);
            background: rgba(13,27,42,0.06);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-badge {
            font-size: 0.7rem;
            font-weight: 700;
            background: var(--danger-light);
            color: #fff;
            padding: 2px 7px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            animation: badgePulse 2.5s infinite;
        }

        @keyframes badgePulse {
            0%,100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.85; transform: scale(1.06); }
        }

        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--primary);
            font-size: 1.4rem;
            transition: background var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            background: rgba(13,27,42,0.06);
        }

        /* ========== ARTICLE HEADER ========== */
        .article-hero {
            background: var(--primary);
            background-image: 
                linear-gradient(135deg, rgba(13,27,42,0.92) 0%, rgba(27,45,69,0.85) 40%, rgba(13,27,42,0.9) 100%),
                url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 48px 0 44px;
            color: var(--text-on-dark);
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(201,160,80,0.08);
            pointer-events: none;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 30%;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(201,160,80,0.05);
            pointer-events: none;
        }

        .article-hero .container-narrow {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.88rem;
            color: rgba(232,230,224,0.7);
            margin-bottom: 18px;
        }

        .breadcrumb a {
            color: var(--accent-light);
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .breadcrumb .separator {
            color: rgba(232,230,224,0.4);
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: rgba(232,230,224,0.85);
            pointer-events: none;
        }

        .article-hero-title {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.35;
            color: #fff;
            letter-spacing: 0.01em;
            margin-bottom: 14px;
        }

        .article-meta-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.9rem;
            color: rgba(232,230,224,0.75);
        }

        .article-meta-row .meta-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(201,160,80,0.2);
            color: var(--accent-light);
            padding: 5px 13px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.82rem;
            border: 1px solid rgba(201,160,80,0.25);
        }

        .article-meta-row .meta-time {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

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

        .article-featured-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            margin-bottom: 36px;
        }

        .article-featured-image img {
            width: 100%;
            display: block;
            object-fit: cover;
            aspect-ratio: 16 / 9;
        }

        .article-body {
            font-size: 1.08rem;
            line-height: 1.85;
            color: var(--text);
        }

        .article-body h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--primary);
            margin: 36px 0 14px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--border-light);
            letter-spacing: 0.01em;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-light);
            margin: 28px 0 10px;
        }

        .article-body p {
            margin-bottom: 16px;
            text-align: justify;
        }

        .article-body ul, .article-body ol {
            margin: 12px 0 18px 20px;
            padding-left: 8px;
        }

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

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

        .article-body li {
            margin-bottom: 8px;
            padding-left: 4px;
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: var(--surface-alt);
            padding: 18px 22px;
            margin: 22px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
            color: var(--text-secondary);
            font-style: italic;
            font-size: 1.02rem;
        }

        .article-body img {
            border-radius: var(--radius);
            margin: 16px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-body a {
            color: var(--accent-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
            font-weight: 500;
        }

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

        .article-body strong {
            color: var(--primary);
            font-weight: 700;
        }

        .article-divider {
            border: none;
            height: 1px;
            background: var(--border-light);
            margin: 40px 0;
        }

        .article-tags-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 28px;
        }

        .article-tags-row .tag-label {
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .article-tags-row .tag-pill {
            display: inline-block;
            padding: 6px 14px;
            background: var(--surface-alt);
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            cursor: default;
        }

        .article-tags-row .tag-pill:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: #fdfaf3;
        }

        /* ========== NOT FOUND ========== */
        .not-found-block {
            text-align: center;
            padding: 80px 20px;
        }

        .not-found-block .nf-icon {
            font-size: 4rem;
            color: var(--border);
            margin-bottom: 20px;
            display: block;
        }

        .not-found-block h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .not-found-block p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            font-size: 1.05rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow);
            transform: translateY(-1px);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            box-shadow: var(--shadow);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--border);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: #fdfaf3;
        }

        /* ========== RELATED POSTS ========== */
        .related-section {
            padding: 50px 0 60px;
            background: var(--surface-alt);
            border-top: 1px solid var(--border-light);
        }

        .related-section .section-label {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-dark);
            font-weight: 700;
            margin-bottom: 6px;
        }

        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 28px;
            font-family: var(--font-display);
            letter-spacing: 0.01em;
        }

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

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

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

        .related-card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--surface-alt);
        }

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

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

        .related-card-body {
            padding: 16px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-cat {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent-dark);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 6px;
        }

        .related-card-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-desc {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .related-card-time {
            font-size: 0.78rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 56px 0;
            background: var(--primary);
            background-image: 
                linear-gradient(135deg, rgba(13,27,42,0.95) 0%, rgba(27,45,69,0.9) 100%),
                url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
        }

        .cta-section .cta-icon {
            font-size: 3rem;
            color: var(--accent);
            margin-bottom: 16px;
            display: block;
        }

        .cta-section h2 {
            font-family: var(--font-display);
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .cta-section p {
            color: rgba(232,230,224,0.8);
            margin-bottom: 24px;
            font-size: 1.05rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0a1420;
            color: rgba(232,230,224,0.75);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .logo-text {
            color: #fff;
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 10px;
            display: block;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            color: rgba(232,230,224,0.6);
            line-height: 1.7;
            font-size: 0.88rem;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            color: rgba(232,230,224,0.6);
            padding: 5px 0;
            transition: all var(--transition-fast);
            font-size: 0.88rem;
        }

        .footer-col a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: all var(--transition-fast);
            color: rgba(232,230,224,0.6);
            padding: 0 !important;
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            padding-left: 0 !important;
            transform: translateY(-2px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
            font-size: 0.82rem;
            color: rgba(232,230,224,0.45);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-hero-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }
            .container, .container-narrow {
                padding: 0 16px;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                gap: 2px;
                padding: 12px 16px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
                display: none;
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 13px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
            .nav-links a.active::after {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .article-hero {
                padding: 32px 0 28px;
            }
            .article-hero-title {
                font-size: 1.45rem;
            }
            .article-body {
                font-size: 1rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .article-hero-title {
                font-size: 1.25rem;
            }
            .article-meta-row {
                gap: 10px;
                font-size: 0.8rem;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
            .article-body h2 {
                font-size: 1.3rem;
            }
            .article-body h3 {
                font-size: 1.1rem;
            }
            .related-section .section-title {
                font-size: 1.3rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.88rem;
            }
        }