/* roulang page: index */
:root {
            --bg-primary: #080c14;
            --bg-secondary: #0d1220;
            --bg-card: #131a2a;
            --bg-card-hover: #182032;
            --bg-hud: rgba(16, 22, 40, 0.85);
            --text-primary: #e8ecf2;
            --text-secondary: #9aa4b8;
            --text-muted: #6b7390;
            --accent: #3b82f6;
            --accent-glow: rgba(59, 130, 246, 0.35);
            --accent-secondary: #f0a500;
            --accent-secondary-glow: rgba(240, 165, 0, 0.3);
            --accent-tertiary: #22d3a0;
            --border: #1e2a3d;
            --border-light: #263348;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 24px var(--accent-glow);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --container-max: 1200px;
            --nav-height: 64px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(8, 12, 20, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent), #1d4ed8);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 0 14px var(--accent-glow);
        }

        .nav-logo .logo-text-full {
            display: inline;
        }
        .nav-logo .logo-text-short {
            display: none;
        }

        .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: var(--radius-sm);
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-links a.active {
            color: #fff;
            background: rgba(59, 130, 246, 0.15);
            font-weight: 600;
        }

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

        .nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 7px 16px;
            transition: all var(--transition);
        }

        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px var(--accent-glow);
        }

        .nav-search i {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .nav-search input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 0.9rem;
            width: 140px;
            transition: width var(--transition);
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search input:focus {
            width: 180px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.93rem;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 0 16px var(--accent-glow);
        }
        .btn-primary:hover {
            background: #2563eb;
            box-shadow: 0 0 24px rgba(59, 130, 246, 0.5);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 10px var(--accent-glow);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-light);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(59, 130, 246, 0.06);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 1.05rem;
            border-radius: 28px;
        }

        .btn-accent {
            background: var(--accent-secondary);
            color: #0a0e17;
            box-shadow: 0 0 16px var(--accent-secondary-glow);
            font-weight: 700;
        }
        .btn-accent:hover {
            background: #f59e0b;
            box-shadow: 0 0 28px rgba(240, 165, 0, 0.5);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 8px;
            cursor: pointer;
        }

        .mobile-nav-overlay {
            display: none;
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            padding: 140px 0 100px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-color: var(--bg-primary);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 12, 20, 0.55) 0%, rgba(8, 12, 20, 0.82) 60%, var(--bg-primary) 100%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: 10%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid rgba(59, 130, 246, 0.3);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 0.85rem;
            color: var(--accent);
            font-weight: 500;
            margin-bottom: 24px;
            animation: fadeInUp 0.6s ease;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-tertiary);
            box-shadow: 0 0 8px var(--accent-tertiary);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
            animation: fadeInUp 0.6s ease 0.1s both;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent), #60a5fa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.8;
            animation: fadeInUp 0.6s ease 0.2s both;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
            animation: fadeInUp 0.6s ease 0.3s both;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 56px;
            animation: fadeInUp 0.6s ease 0.4s both;
        }

        .hero-stat {
            text-align: center;
        }
        .hero-stat .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .hero-stat .stat-num span {
            background: linear-gradient(135deg, var(--accent), var(--accent-tertiary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 80px 0;
        }
        .section-dark {
            background: var(--bg-secondary);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--accent);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.7;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-subtitle {
            margin: 0 auto;
        }

        /* ========== HUD DATA PANELS ========== */
        .hud-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .hud-card {
            background: var(--bg-hud);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            position: relative;
            overflow: hidden;
            transition: all var(--transition-slow);
            backdrop-filter: blur(8px);
        }

        .hud-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0;
            transition: opacity var(--transition-slow);
        }

        .hud-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }
        .hud-card:hover::before {
            opacity: 1;
        }

        .hud-card .hud-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.3rem;
            background: rgba(59, 130, 246, 0.1);
            color: var(--accent);
            border: 1px solid rgba(59, 130, 246, 0.25);
        }

        .hud-card .hud-value {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            margin-bottom: 4px;
        }

        .hud-card .hud-value.gold {
            background: linear-gradient(135deg, var(--accent-secondary), #fbbf24);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hud-card .hud-label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

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

        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-slow);
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-lg), 0 0 20px rgba(59, 130, 246, 0.1);
            transform: translateY(-4px);
        }

        .category-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
        }

        .category-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-card .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-secondary);
            background: rgba(240, 165, 0, 0.1);
            border: 1px solid rgba(240, 165, 0, 0.25);
            border-radius: 14px;
            padding: 4px 12px;
            margin-bottom: 12px;
            width: fit-content;
        }

        .category-card .card-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .category-card .card-desc {
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }

        .category-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-weight: 600;
            color: var(--accent);
            font-size: 0.93rem;
            transition: gap var(--transition);
        }
        .category-card .card-link:hover {
            gap: 10px;
        }

        /* ========== CONTENT LIST ========== */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .content-list-item {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 20px;
            transition: all var(--transition);
            align-items: flex-start;
        }

        .content-list-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
            background: var(--bg-card-hover);
        }

        .content-list-item .list-img {
            width: 120px;
            height: 80px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            border: 1px solid var(--border);
        }

        .content-list-item .list-body {
            flex: 1;
            min-width: 0;
        }

        .content-list-item .list-meta {
            display: flex;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            flex-wrap: wrap;
        }

        .content-list-item .list-meta .meta-cat {
            color: var(--accent);
            font-weight: 500;
        }

        .content-list-item .list-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-list-item .list-excerpt {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }

        /* ========== COMPARISON PANEL ========== */
        .comparison-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .comparison-image img {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
        }

        .comparison-content h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .comparison-content p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .comparison-features {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .comparison-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-primary);
        }
        .comparison-features li i {
            color: var(--accent-tertiary);
            font-size: 1rem;
        }

        /* ========== PATH / TIMELINE ========== */
        .path-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            position: relative;
        }

        .path-steps::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }

        .path-step {
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 16px;
        }

        .path-step .step-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 2px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--accent);
            margin: 0 auto 16px;
            transition: all var(--transition);
            position: relative;
        }

        .path-step:hover .step-circle {
            border-color: var(--accent);
            box-shadow: var(--shadow-glow);
            background: rgba(59, 130, 246, 0.08);
        }

        .path-step .step-num {
            position: absolute;
            top: -8px;
            right: -8px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .path-step h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }
        .path-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-light);
        }

        .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            font-size: 1rem;
            user-select: none;
            transition: color var(--transition);
        }

        .faq-item summary:hover {
            color: #fff;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-item[open] summary {
            color: var(--accent);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--bg-secondary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-inner p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            font-size: 1.05rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #fff;
            margin-bottom: 8px;
            display: block;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hud-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .path-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .path-steps::before {
                display: none;
            }
            .comparison-panel {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .comparison-image {
                order: -1;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .nav-search input {
                width: 100px;
            }
            .nav-search input:focus {
                width: 140px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-search {
                display: none;
            }
            .nav-actions .btn {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .nav-logo .logo-text-full {
                display: none;
            }
            .nav-logo .logo-text-short {
                display: inline;
            }
            .nav-logo {
                font-size: 1.05rem;
            }

            .mobile-nav-overlay {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(8, 12, 20, 0.96);
                backdrop-filter: blur(12px);
                z-index: 999;
                flex-direction: column;
                padding: 24px 20px;
                gap: 8px;
            }
            .mobile-nav-overlay.show {
                display: flex;
            }
            .mobile-nav-overlay a {
                display: block;
                padding: 14px 16px;
                font-size: 1.1rem;
                font-weight: 500;
                color: var(--text-secondary);
                border-radius: var(--radius);
                transition: all var(--transition);
            }
            .mobile-nav-overlay a:hover,
            .mobile-nav-overlay a.active {
                color: #fff;
                background: rgba(59, 130, 246, 0.1);
            }

            .hero {
                padding: 110px 0 60px;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 36px;
            }
            .hero-stat .stat-num {
                font-size: 1.5rem;
            }

            .hud-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .hud-card {
                padding: 20px 14px;
            }
            .hud-card .hud-value {
                font-size: 1.5rem;
            }

            .category-grid {
                grid-template-columns: 1fr;
            }
            .content-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .content-list-item .list-img {
                width: 100%;
                height: 160px;
            }
            .path-steps {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .section {
                padding: 56px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .hud-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero p {
                font-size: 0.95rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                gap: 16px;
            }
            .path-steps {
                grid-template-columns: 1fr;
            }
            .comparison-content h3 {
                font-size: 1.3rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .container {
                padding: 0 14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #c41230;
            --primary-dark: #8b0a1e;
            --primary-light: #e84d5b;
            --secondary: #f0a830;
            --secondary-dark: #c8871a;
            --accent: #00c9a7;
            --accent-glow: #00e6bf;
            --dark: #111827;
            --hud-bg: #0a0e17;
            --hud-card: #111820;
            --hud-border: #1e293b;
            --hud-accent: #0f1923;
            --text: #1f2937;
            --text-strong: #111827;
            --text-light: #6b7280;
            --text-muted: #9ca3af;
            --bg: #f9fafb;
            --bg-alt: #f3f4f6;
            --white: #ffffff;
            --border: #e5e7eb;
            --border-light: #f0f0f0;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.12);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.15);
            --shadow-hud: 0 4px 24px rgba(0,200,160,0.08);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --nav-height: 64px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

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

        button, input {
            font-family: inherit;
            font-size: inherit;
        }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .logo-text {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-strong);
            white-space: nowrap;
            letter-spacing: -0.3px;
        }

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

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.925rem;
            color: var(--text);
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: -0.2px;
        }

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

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(196,18,48,0.25);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search input {
            padding: 9px 16px 9px 38px;
            border: 1.5px solid var(--border);
            border-radius: 10px;
            font-size: 0.875rem;
            width: 200px;
            background: var(--bg);
            color: var(--text);
            transition: all var(--transition);
            outline: none;
        }

        .nav-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(196,18,48,0.06);
            width: 240px;
            background: var(--white);
        }

        .nav-search .search-icon {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            pointer-events: none;
            font-size: 0.9rem;
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            background: var(--dark);
            color: #fff;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.875rem;
            white-space: nowrap;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            letter-spacing: -0.2px;
        }

        .btn-nav-cta:hover {
            background: #1f2937;
            box-shadow: var(--shadow);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text);
            padding: 6px;
            line-height: 1;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            padding: 64px 0 56px;
            background: linear-gradient(160deg, #0d1117 0%, #1a1a2e 40%, #16213e 100%);
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.22;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(196,18,48,0.15) 0%, transparent 60%),
                        radial-gradient(ellipse at 70% 30%, rgba(240,168,48,0.08) 0%, transparent 50%);
            z-index: 1;
        }

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

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .banner-breadcrumb a {
            color: rgba(255,255,255,0.7);
            transition: color var(--transition);
        }

        .banner-breadcrumb a:hover {
            color: #fff;
        }

        .banner-breadcrumb .sep {
            color: rgba(255,255,255,0.35);
        }

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

        .page-banner h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 10px;
            letter-spacing: -1px;
            line-height: 1.25;
        }

        .page-banner .banner-sub {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.7);
            max-width: 600px;
            margin: 0;
            line-height: 1.6;
        }

        .banner-stats-row {
            display: flex;
            gap: 32px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .banner-stat {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .banner-stat .stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-glow);
            letter-spacing: -0.5px;
        }

        .banner-stat .stat-label {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.5);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: 56px 0;
        }

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

        .section-header .section-tag {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(196,18,48,0.08);
            color: var(--primary);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-strong);
            margin: 0 0 8px;
            letter-spacing: -0.5px;
        }

        .section-header .section-desc {
            font-size: 0.95rem;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ========== TOPIC SELECT CARDS ========== */
        .topic-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .topic-card {
            background: var(--white);
            border: 1.5px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            cursor: pointer;
            transition: all var(--transition-slow);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .topic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary);
            border-radius: 0 0 4px 4px;
            opacity: 0;
            transition: opacity var(--transition-slow);
        }

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

        .topic-card:hover::before {
            opacity: 1;
        }

        .topic-card.active-topic {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(196,18,48,0.06), var(--shadow-md);
            background: #fffbfb;
        }

        .topic-card.active-topic::before {
            opacity: 1;
        }

        .topic-card .topic-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.5rem;
            background: var(--bg-alt);
            transition: all var(--transition);
        }

        .topic-card:hover .topic-icon,
        .topic-card.active-topic .topic-icon {
            background: var(--primary);
            color: #fff;
        }

        .topic-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-strong);
            margin: 0 0 6px;
        }

        .topic-card p {
            font-size: 0.825rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== COMPARE PANEL ========== */
        .compare-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: stretch;
        }

        .compare-card {
            background: var(--white);
            border: 1.5px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            position: relative;
            transition: all var(--transition);
        }

        .compare-card:hover {
            box-shadow: var(--shadow-md);
        }

        .compare-card.advantage {
            border-left: 4px solid var(--accent);
        }

        .compare-card.risk {
            border-left: 4px solid var(--secondary);
        }

        .compare-card .compare-label {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .compare-card.advantage .compare-label {
            background: rgba(0,201,167,0.1);
            color: #008a6e;
        }

        .compare-card.risk .compare-label {
            background: rgba(240,168,48,0.1);
            color: #b87a10;
        }

        .compare-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-strong);
            margin: 0 0 8px;
        }

        .compare-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin: 0 0 16px;
            line-height: 1.65;
        }

        .compare-metrics {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .compare-metric {
            text-align: center;
            flex: 1;
            min-width: 60px;
        }

        .compare-metric .metric-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: -0.5px;
        }

        .compare-metric .metric-label {
            font-size: 0.7rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* ========== PATHWAY / TIMELINE ========== */
        .pathway-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
        }

        .pathway-list::before {
            content: '';
            position: absolute;
            left: 28px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--border);
            border-radius: 2px;
            z-index: 0;
        }

        .pathway-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 18px 0;
            position: relative;
            z-index: 1;
        }

        .pathway-step {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--white);
            border: 3px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-light);
            flex-shrink: 0;
            transition: all var(--transition);
            z-index: 1;
        }

        .pathway-item.completed .pathway-step {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }

        .pathway-item.current .pathway-step {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 0 0 8px rgba(196,18,48,0.1);
        }

        .pathway-content {
            flex: 1;
            padding-top: 6px;
        }

        .pathway-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-strong);
            margin: 0 0 4px;
        }

        .pathway-content p {
            font-size: 0.875rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.55;
        }

        .pathway-content .pathway-time {
            display: inline-block;
            font-size: 0.75rem;
            color: var(--text-muted);
            background: var(--bg-alt);
            padding: 3px 10px;
            border-radius: 12px;
            margin-top: 6px;
        }

        /* ========== HUD DASHBOARD ========== */
        .hud-dashboard {
            background: var(--hud-bg);
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            border: 1px solid var(--hud-border);
            box-shadow: var(--shadow-hud);
            position: relative;
            overflow: hidden;
        }

        .hud-dashboard::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(0,201,167,0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hud-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .hud-header h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #e0e6ed;
            margin: 0;
            letter-spacing: -0.3px;
        }

        .hud-header .hud-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            background: rgba(0,201,167,0.12);
            color: var(--accent-glow);
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .hud-metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .hud-metric-card {
            background: var(--hud-card);
            border: 1px solid var(--hud-border);
            border-radius: var(--radius);
            padding: 20px 18px;
            text-align: center;
            transition: all var(--transition);
        }

        .hud-metric-card:hover {
            border-color: rgba(0,201,167,0.3);
            box-shadow: 0 0 20px rgba(0,201,167,0.06);
        }

        .hud-metric-card .hud-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-glow);
            letter-spacing: -1px;
            line-height: 1;
            margin-bottom: 6px;
        }

        .hud-metric-card .hud-label {
            font-size: 0.75rem;
            color: #6b7c8e;
            text-transform: uppercase;
            letter-spacing: 0.6px;
        }

        .hud-metric-card .hud-change {
            font-size: 0.7rem;
            font-weight: 600;
            margin-top: 4px;
        }

        .hud-change.up {
            color: var(--accent-glow);
        }

        .hud-change.down {
            color: #f87171;
        }

        .hud-progress-bar {
            margin-top: 28px;
            background: var(--hud-card);
            border: 1px solid var(--hud-border);
            border-radius: var(--radius);
            padding: 20px 22px;
        }

        .hud-progress-bar .progress-label-row {
            display: flex;
            justify-content: space-between;
            margin-bottom: 8px;
            font-size: 0.8rem;
            color: #8899aa;
        }

        .hud-progress-bar .progress-track {
            height: 8px;
            background: #1a2332;
            border-radius: 4px;
            overflow: hidden;
        }

        .hud-progress-bar .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent), var(--accent-glow));
            border-radius: 4px;
            transition: width 0.6s ease;
        }

        /* ========== ARTICLE CARDS GRID ========== */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--white);
            border: 1.5px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-slow);
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: #d1d5db;
        }

        .article-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--bg-alt);
        }

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

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

        .article-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            background: var(--primary);
            color: #fff;
            border-radius: 6px;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            z-index: 1;
        }

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

        .article-card .card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-strong);
            margin: 0 0 8px;
            line-height: 1.4;
            letter-spacing: -0.2px;
        }

        .article-card .card-body p {
            font-size: 0.825rem;
            color: var(--text-light);
            margin: 0 0 14px;
            line-height: 1.55;
            flex: 1;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.75rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }

        .article-card .card-meta .meta-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .article-card .card-meta .meta-read {
            color: var(--primary);
            font-weight: 500;
            cursor: pointer;
            transition: color var(--transition);
        }

        .article-card .card-meta .meta-read:hover {
            color: var(--primary-dark);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 56px 0 64px;
        }

        .cta-block {
            background: linear-gradient(135deg, #0d1117 0%, #1a1a2e 60%, #1a1030 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--hud-border);
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -80px;
            left: -80px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(196,18,48,0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-block::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(240,168,48,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-block .cta-content {
            position: relative;
            z-index: 2;
            max-width: 600px;
            margin: 0 auto;
        }

        .cta-block h3 {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 10px;
            letter-spacing: -0.5px;
        }

        .cta-block p {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.65);
            margin: 0 0 24px;
            line-height: 1.6;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: -0.2px;
        }

        .btn-cta-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 28px rgba(196,18,48,0.35);
            transform: translateY(-2px);
        }

        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255,255,255,0.3);
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: -0.2px;
            margin-left: 12px;
        }

        .btn-cta-outline:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.06);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--dark);
            color: #c5cdd8;
            padding: 48px 0 28px;
            font-size: 0.875rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            display: block;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }

        .footer-brand p {
            color: #8899aa;
            line-height: 1.6;
            margin: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: #e0e6ed;
            margin: 0 0 14px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }

        .footer-col a {
            display: block;
            color: #8899aa;
            padding: 5px 0;
            font-size: 0.85rem;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            text-align: center;
            color: #6b7c8e;
            font-size: 0.8rem;
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .topic-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hud-metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .compare-panel {
                grid-template-columns: 1fr;
            }
            .nav-search input {
                width: 150px;
            }
            .nav-search input:focus {
                width: 180px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 10px;
            }
            .nav-links {
                order: 3;
                width: 100%;
                overflow-x: auto;
                justify-content: flex-start;
                gap: 2px;
                padding: 4px 0;
                -webkit-overflow-scrolling: touch;
            }
            .nav-links a {
                padding: 7px 14px;
                font-size: 0.825rem;
            }
            .nav-right {
                order: 2;
            }
            .nav-search input {
                width: 120px;
                font-size: 0.8rem;
            }
            .nav-search input:focus {
                width: 150px;
            }
            .btn-nav-cta {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .logo-text {
                font-size: 0.95rem;
            }
            .page-banner {
                padding: 40px 0 36px;
                min-height: auto;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .banner-stats-row {
                gap: 16px;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .topic-cards-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .articles-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .hud-metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .hud-dashboard {
                padding: 24px 16px;
            }
            .compare-panel {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .pathway-step {
                width: 44px;
                height: 44px;
                font-size: 1rem;
            }
            .pathway-list::before {
                left: 22px;
            }
            .cta-block {
                padding: 32px 20px;
            }
            .cta-block h3 {
                font-size: 1.35rem;
            }
            .btn-cta-outline {
                margin-left: 0;
                margin-top: 10px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .header-inner {
                padding: 0 14px;
            }
            .logo-text {
                font-size: 0.85rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .nav-links a {
                padding: 6px 10px;
                font-size: 0.78rem;
            }
            .nav-search input {
                width: 90px;
                font-size: 0.75rem;
                padding: 7px 10px 7px 30px;
            }
            .nav-search input:focus {
                width: 110px;
            }
            .btn-nav-cta {
                padding: 6px 10px;
                font-size: 0.75rem;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .page-banner .banner-sub {
                font-size: 0.85rem;
            }
            .banner-stats-row {
                gap: 10px;
            }
            .banner-stat .stat-num {
                font-size: 1.2rem;
            }
            .topic-cards-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .hud-metrics-grid {
                grid-template-columns: 1fr;
            }
            .articles-grid {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .compare-card {
                padding: 20px 16px;
            }
            .hud-metric-card .hud-value {
                font-size: 1.5rem;
            }
            .cta-block h3 {
                font-size: 1.2rem;
            }
        }

@media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-wrap: nowrap;
                overflow-x: auto;
                gap: 2px;
                padding: 6px 0;
                background: rgba(255,255,255,0.95);
                border-top: 1px solid var(--border);
                margin: 0 -14px;
                padding-left: 14px;
                padding-right: 14px;
            }
            .nav-links.nav-open {
                display: flex;
            }
            .mobile-menu-toggle {
                display: inline-block;
                order: 3;
            }
            .nav-right {
                order: 2;
            }
        }
        @media (min-width: 769px) {
            .nav-links {
                display: flex !important;
            }
            .mobile-menu-toggle {
                display: none;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #080d14;
            --bg-secondary: #0d1520;
            --bg-card: #111b26;
            --bg-card-hover: #162231;
            --bg-article: #141f2d;
            --bg-input: #0b121c;
            --text-primary: #e8eaf0;
            --text-secondary: #b0bdd0;
            --text-weak: #6b7d95;
            --text-heading: #f0f2f6;
            --accent-gold: #c8963e;
            --accent-gold-light: #e8c56d;
            --accent-gold-glow: rgba(200, 150, 62, 0.25);
            --accent-blue: #3b82f6;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --border-color: #1e2d3d;
            --border-light: #263545;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
            --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 24px rgba(200,150,62,0.2);
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
            --container-max: 1200px;
            --container-narrow: 860px;
            --nav-height: 68px;
            --section-gap: 64px;
        }

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

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background:
                radial-gradient(ellipse at 15% 20%, rgba(200,150,62,0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 60%, rgba(59,130,246,0.03) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 85%, rgba(16,185,129,0.02) 0%, transparent 50%);
            pointer-events: none;
            z-index: 0;
        }

        a {
            color: var(--accent-gold-light);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-gold);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
        }
        input {
            outline: none;
            border: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
            z-index: 1;
        }
        .container-narrow {
            max-width: var(--container-narrow);
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(13,21,32,0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal);
        }
        .site-header.scrolled {
            background: rgba(13,21,32,0.95);
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-gold) 0%, #a07020 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #1a1a1a;
            font-weight: 900;
            box-shadow: var(--shadow-gold);
        }
        .logo-text {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--accent-gold-light);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--text-heading);
            background: rgba(255,255,255,0.03);
        }
        .nav-links a.active {
            color: var(--accent-gold-light);
            background: rgba(200,150,62,0.08);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-input);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 8px 14px;
            gap: 8px;
            transition: all var(--transition-fast);
            width: 200px;
        }
        .nav-search:focus-within {
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 3px var(--accent-gold-glow);
            width: 240px;
        }
        .nav-search i {
            color: var(--text-weak);
            font-size: 0.85rem;
        }
        .nav-search input {
            background: transparent;
            color: var(--text-primary);
            width: 100%;
            font-size: 0.85rem;
        }
        .nav-search input::placeholder {
            color: var(--text-weak);
        }
        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #b8862a 100%);
            color: #1a1208;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 12px rgba(200,150,62,0.3);
        }
        .btn-nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(200,150,62,0.45);
            color: #1a1208;
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: rgba(255,255,255,0.05);
        }

        /* Article Banner */
        .article-banner {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            min-height: 340px;
            display: flex;
            align-items: flex-end;
            padding: 48px 0 36px;
            margin-bottom: 0;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(8,13,20,0.95) 0%, rgba(8,13,20,0.7) 40%, rgba(8,13,20,0.45) 70%, rgba(8,13,20,0.3) 100%);
            z-index: 1;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(200,150,62,0.08) 0%, transparent 60%);
            z-index: 2;
            pointer-events: none;
        }
        .banner-content {
            position: relative;
            z-index: 3;
            max-width: var(--container-narrow);
            width: 100%;
            margin: 0 auto;
            padding: 0 24px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--text-weak);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--accent-gold-light);
        }
        .breadcrumb .sep {
            color: var(--text-weak);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--accent-gold-light);
            font-weight: 500;
        }
        .banner-content h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-heading);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .banner-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .banner-meta .meta-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(200,150,62,0.12);
            color: var(--accent-gold-light);
            border: 1px solid rgba(200,150,62,0.2);
        }
        .banner-meta .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--text-weak);
        }

        /* Article Layout */
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            padding: 48px 0;
            align-items: start;
        }
        .article-main {
            background: var(--bg-article);
            border-radius: var(--radius-lg);
            padding: 40px;
            border: 1px solid var(--border-color);
            min-width: 0;
        }
        .article-main .article-featured-img {
            border-radius: var(--radius-md);
            margin-bottom: 32px;
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border: 1px solid var(--border-light);
        }
        .article-body {
            font-size: 1.02rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-heading);
            margin: 36px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-heading);
            margin: 28px 0 12px;
        }
        .article-body p {
            margin-bottom: 18px;
        }
        .article-body ul, .article-body ol {
            margin: 16px 0;
            padding-left: 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body blockquote {
            border-left: 3px solid var(--accent-gold);
            padding: 16px 20px;
            margin: 24px 0;
            background: rgba(200,150,62,0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body code {
            background: var(--bg-input);
            padding: 2px 8px;
            border-radius: 4px;
            font-family: var(--font-mono);
            font-size: 0.88em;
            color: var(--accent-gold-light);
            border: 1px solid var(--border-color);
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            border: 1px solid var(--border-light);
        }
        .article-body a {
            color: var(--accent-gold-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body a:hover {
            color: var(--accent-gold);
        }
        .article-footer-meta {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-weak);
        }
        .article-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .article-tags span {
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 500;
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
        }

        /* Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: calc(var(--nav-height) + 24px);
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-color);
        }
        .sidebar-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i {
            color: var(--accent-gold);
            font-size: 0.85rem;
        }
        .sidebar-related-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-related-item {
            display: flex;
            gap: 12px;
            padding: 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            text-decoration: none;
            align-items: flex-start;
        }
        .sidebar-related-item:hover {
            background: var(--bg-card-hover);
        }
        .sidebar-related-item img {
            width: 64px;
            height: 48px;
            border-radius: 4px;
            object-fit: cover;
            flex-shrink: 0;
            border: 1px solid var(--border-color);
        }
        .sidebar-related-item .rel-info {
            min-width: 0;
        }
        .sidebar-related-item .rel-title {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 4px;
        }
        .sidebar-related-item .rel-date {
            font-size: 0.72rem;
            color: var(--text-weak);
        }
        .sidebar-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .stat-mini {
            background: var(--bg-input);
            border-radius: var(--radius-sm);
            padding: 14px;
            text-align: center;
            border: 1px solid var(--border-color);
        }
        .stat-mini .stat-val {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent-gold-light);
            font-family: var(--font-mono);
            line-height: 1;
        }
        .stat-mini .stat-label {
            font-size: 0.7rem;
            color: var(--text-weak);
            margin-top: 4px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .sidebar-cta-card {
            background: linear-gradient(135deg, rgba(200,150,62,0.1) 0%, rgba(200,150,62,0.03) 100%);
            border: 1px solid rgba(200,150,62,0.25);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
        }
        .sidebar-cta-card h4 {
            color: var(--accent-gold-light);
            font-size: 1rem;
            margin-bottom: 8px;
        }
        .sidebar-cta-card p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
            line-height: 1.5;
        }
        .btn-sidebar-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            background: var(--accent-gold);
            color: #1a1208;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-gold);
        }
        .btn-sidebar-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 28px rgba(200,150,62,0.4);
            color: #1a1208;
        }

        /* Not Found State */
        .not-found-state {
            text-align: center;
            padding: 80px 24px;
        }
        .not-found-state .nf-icon {
            font-size: 4rem;
            color: var(--text-weak);
            margin-bottom: 20px;
        }
        .not-found-state h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
        }
        .not-found-state p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            font-size: 1rem;
        }
        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 24px;
            font-weight: 600;
            background: var(--accent-gold);
            color: #1a1208;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-gold);
        }
        .btn-back-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 28px rgba(200,150,62,0.4);
            color: #1a1208;
        }

        /* Related Section Below Article */
        .related-section {
            padding: 0 0 48px;
        }
        .related-section .section-heading {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section .section-heading::before {
            content: '';
            width: 4px;
            height: 22px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition-normal);
            text-decoration: none;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-light);
        }
        .related-card img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-bottom: 1px solid var(--border-color);
        }
        .related-card .rc-body {
            padding: 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .rc-tag {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--accent-gold-light);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 8px;
        }
        .related-card .rc-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .rc-date {
            font-size: 0.75rem;
            color: var(--text-weak);
            margin-top: 10px;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 56px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(200,150,62,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            position: relative;
        }
        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            font-size: 1rem;
            position: relative;
        }
        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #b8862a 100%);
            color: #1a1208;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-gold);
            position: relative;
        }
        .btn-cta-lg:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(200,150,62,0.45);
            color: #1a1208;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .footer-logo {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-heading);
            display: block;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-weak);
            line-height: 1.6;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-weak);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent-gold-light);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        /* Mobile Menu */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(8,13,20,0.95);
            backdrop-filter: blur(16px);
            z-index: 999;
            flex-direction: column;
            padding: 24px;
            gap: 8px;
        }
        .mobile-nav-overlay.active {
            display: flex;
        }
        .mobile-nav-overlay a {
            display: block;
            padding: 14px 20px;
            border-radius: var(--radius-md);
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            background: rgba(200,150,62,0.08);
            color: var(--accent-gold-light);
        }
        .mobile-nav-overlay .mobile-cta {
            margin-top: 16px;
            text-align: center;
            padding: 14px;
            border-radius: 28px;
            background: var(--accent-gold);
            color: #1a1208;
            font-weight: 600;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-search {
                width: 150px;
            }
            .nav-search:focus-within {
                width: 180px;
            }
            .banner-content h1 {
                font-size: 1.8rem;
            }
            .article-main {
                padding: 28px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
                --section-gap: 40px;
            }
            .nav-links {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .btn-nav-cta {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .article-layout {
                grid-template-columns: 1fr;
                padding: 32px 0;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-banner {
                min-height: 240px;
                padding: 36px 0 24px;
            }
            .banner-content h1 {
                font-size: 1.4rem;
            }
            .article-main {
                padding: 20px;
                border-radius: var(--radius-md);
            }
            .article-body {
                font-size: 0.95rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .banner-meta {
                gap: 10px;
                font-size: 0.78rem;
            }
            .cta-section {
                padding: 40px 0;
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .banner-content h1 {
                font-size: 1.2rem;
            }
            .article-main {
                padding: 16px;
            }
            .banner-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .banner-meta .meta-dot {
                display: none;
            }
            .article-footer-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            .logo-text {
                font-size: 0.85rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .related-card .rc-title {
                font-size: 0.85rem;
            }
        }

        /* Focus styles for accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .nav-links a:focus-visible {
            outline-offset: 0;
        }