/* roulang page: index */
:root {
            --primary: #1a1f3a;
            --primary-light: #252b50;
            --accent: #c9a84c;
            --accent-hover: #dbb95e;
            --accent-soft: rgba(201, 168, 76, 0.12);
            --bg-deep: #070a14;
            --bg-dark: #0c1020;
            --bg-card: #13172b;
            --bg-card-hover: #181d38;
            --bg-elevated: #1a1f3d;
            --text: #e4e6f0;
            --text-strong: #ffffff;
            --text-muted: #8b8fa8;
            --text-weak: #5e6380;
            --border: #252b45;
            --border-light: #2e3555;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow: 0 4px 20px rgba(0,0,0,0.35);
            --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 60px rgba(201,168,76,0.08);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg-deep);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER & NAV ========== */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(12, 16, 32, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .header.scrolled {
            background: rgba(12, 16, 32, 0.96);
            box-shadow: 0 2px 24px rgba(0,0,0,0.4);
        }

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

        .nav-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            min-width: 0;
        }

        .nav-group.left {
            justify-content: flex-end;
            padding-right: 12px;
        }

        .nav-group.right {
            justify-content: flex-start;
            padding-left: 12px;
        }

        .logo-wrap {
            flex-shrink: 0;
            text-align: center;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: 0.04em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition);
        }

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

        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: radial-gradient(circle at 40% 35%, #f0d78c 0%, var(--accent) 50%, #8b6914 100%);
            box-shadow: 0 0 20px rgba(201,168,76,0.35);
            flex-shrink: 0;
        }

        .nav-link {
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 16px;
            border-radius: 20px;
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover,
        .nav-link:focus-visible {
            color: var(--text-strong);
            background: var(--bg-elevated);
        }

        .nav-link.active {
            color: var(--accent);
            background: var(--accent-soft);
            font-weight: 600;
        }

        .nav-link-cta {
            background: var(--accent);
            color: #0a0d14 !important;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: 20px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }

        .nav-link-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(201,168,76,0.35);
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 1.3rem;
            transition: background var(--transition);
            flex-shrink: 0;
        }

        .mobile-toggle:hover {
            background: var(--bg-elevated);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 13, 22, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            flex-direction: column;
            padding: 24px 20px;
            gap: 4px;
            z-index: 999;
            overflow-y: auto;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu .nav-link {
            font-size: 1.05rem;
            padding: 14px 20px;
            border-radius: var(--radius);
            display: block;
        }

        .mobile-menu .nav-link-cta {
            text-align: center;
            margin-top: 8px;
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--bg-dark);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                rgba(7,10,20,0.55) 0%,
                rgba(7,10,20,0.7) 30%,
                rgba(7,10,20,0.85) 70%,
                rgba(7,10,20,0.95) 100%
            );
            z-index: 1;
        }

        .hero-stars {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: radial-gradient(1px 1px at 15% 25%, rgba(255,255,255,0.5), transparent),
                        radial-gradient(1px 1px at 28% 40%, rgba(255,255,255,0.4), transparent),
                        radial-gradient(1.5px 1.5px at 55% 18%, rgba(255,255,255,0.55), transparent),
                        radial-gradient(1px 1px at 70% 35%, rgba(255,255,255,0.35), transparent),
                        radial-gradient(1px 1px at 82% 22%, rgba(255,255,255,0.45), transparent),
                        radial-gradient(1.5px 1.5px at 40% 55%, rgba(255,255,255,0.3), transparent),
                        radial-gradient(1px 1px at 62% 50%, rgba(255,255,255,0.4), transparent),
                        radial-gradient(1px 1px at 20% 65%, rgba(255,255,255,0.35), transparent);
            animation: twinkle 4s ease-in-out infinite alternate;
        }

        @keyframes twinkle {
            0% { opacity: 0.6; }
            100% { opacity: 1; }
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 100px 0 80px;
            max-width: 720px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-soft);
            border: 1px solid rgba(201,168,76,0.25);
            padding: 6px 16px;
            border-radius: 24px;
            margin-bottom: 24px;
            letter-spacing: 0.03em;
        }

        .hero-badge-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 8px rgba(201,168,76,0.6);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 8px rgba(201,168,76,0.6); }
            50% { box-shadow: 0 0 18px rgba(201,168,76,1); }
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-strong);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero-title span {
            background: linear-gradient(135deg, #f0d78c 0%, #c9a84c 40%, #e8c565 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 36px;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 28px;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: #0a0d14;
            box-shadow: 0 4px 16px rgba(201,168,76,0.3);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(201,168,76,0.45);
        }

        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1.5px solid var(--border-light);
        }

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

        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 80px 0;
        }

        .section-dark {
            background: var(--bg-dark);
        }

        .section-label {
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            margin-bottom: 10px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 48px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 12px;
        }

        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

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

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition-slow);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0;
            transition: opacity var(--transition-slow);
        }

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

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

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent);
            background: var(--accent-soft);
            margin-bottom: 20px;
            transition: all var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: rgba(201,168,76,0.2);
            box-shadow: 0 0 24px rgba(201,168,76,0.2);
        }

        .feature-card h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 0.925rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

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

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

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

        .category-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .category-card-body {
            padding: 22px 24px;
        }

        .category-card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-soft);
            padding: 4px 12px;
            border-radius: 12px;
            margin-bottom: 10px;
        }

        .category-card h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .category-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 24px;
            transition: all var(--transition);
        }

        .news-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
            transform: translateX(2px);
        }

        .news-item-thumb {
            width: 80px;
            height: 56px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-elevated);
        }

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

        .news-item-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition);
        }

        .news-item:hover .news-item-title {
            color: var(--accent);
        }

        .news-item-meta {
            font-size: 0.8rem;
            color: var(--text-weak);
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .news-item-arrow {
            flex-shrink: 0;
            color: var(--text-weak);
            font-size: 0.85rem;
            transition: all var(--transition);
        }

        .news-item:hover .news-item-arrow {
            color: var(--accent);
            transform: translateX(4px);
        }

        .news-empty {
            text-align: center;
            color: var(--text-muted);
            padding: 40px 20px;
            font-size: 0.95rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }

        /* ========== STATS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
        }

        .stat-card:hover {
            background: var(--bg-card-hover);
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 0.02em;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        /* ========== STEPS ========== */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .step-item {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition);
            counter-increment: step;
        }

        .step-item:hover {
            background: var(--bg-card-hover);
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent-soft);
            color: var(--accent);
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            border: 2px solid rgba(201,168,76,0.3);
        }

        .step-item h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }

        .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-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-strong);
            text-align: left;
            transition: color var(--transition);
            gap: 12px;
        }

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

        .faq-question i {
            font-size: 0.8rem;
            color: var(--text-weak);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

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

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

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

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            overflow: hidden;
            background: var(--bg-dark);
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 64px 24px;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 14px;
        }

        .cta-content p {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
            padding: 48px 0 28px;
        }

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

        .footer-brand .logo {
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-muted);
            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;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

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

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .nav-group.left .nav-link:not(.active),
            .nav-group.right .nav-link:not(.nav-link-cta) {
                display: none;
            }
            .nav-group {
                flex: 0;
            }
            .nav-group.left {
                padding-right: 4px;
            }
            .nav-group.right {
                padding-left: 4px;
            }
            .mobile-toggle {
                display: flex;
            }
            .nav-group.right .nav-link-cta {
                display: inline-flex;
            }

            .hero-title {
                font-size: 2.5rem;
            }
            .features-grid,
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid,
            .steps-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
            }
            .logo {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
            }
            .nav-group.right .nav-link-cta {
                font-size: 0.8rem;
                padding: 6px 14px;
            }
            .mobile-toggle {
                display: flex;
            }
            .hero {
                min-height: 480px;
            }
            .hero-content {
                padding: 60px 0 50px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .features-grid,
            .category-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .steps-list {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px;
            }
            .news-item-thumb {
                width: 100%;
                height: 140px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
            .container {
                padding: 0 16px;
            }
            .container-narrow {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.65rem;
            }
            .hero-desc {
                font-size: 0.875rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .steps-list {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .feature-card,
            .category-card-body {
                padding: 20px 16px;
            }
            .category-card-img {
                height: 160px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a1050;
            --color-primary-deep: #0f0a30;
            --color-primary-light: #2a1a6e;
            --color-accent: #e8b830;
            --color-accent-glow: #f5d060;
            --color-accent-soft: #fff3cd;
            --color-surface: #ffffff;
            --color-surface-alt: #f8f6fc;
            --color-surface-card: #ffffff;
            --color-text: #1e1b2e;
            --color-text-soft: #5a5570;
            --color-text-weak: #8c889e;
            --color-text-inverse: #f0edf8;
            --color-border: #e4e0f0;
            --color-border-light: #f0edf8;
            --color-success: #2ecc71;
            --color-info: #5b7fff;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(15, 10, 48, 0.06);
            --shadow-md: 0 4px 16px rgba(15, 10, 48, 0.09);
            --shadow-lg: 0 8px 32px rgba(15, 10, 48, 0.13);
            --shadow-xl: 0 16px 48px rgba(15, 10, 48, 0.18);
            --shadow-glow: 0 0 40px rgba(232, 184, 48, 0.25);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
        }

        *,
        *::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-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

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

        .container-narrow {
            max-width: var(--container-narrow);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base);
        }
        .header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            height: 66px;
            gap: 20px;
        }
        .nav-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
        }
        .nav-group.left {
            justify-content: flex-end;
        }
        .nav-group.right {
            justify-content: flex-start;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(26, 16, 80, 0.05);
        }
        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(26, 16, 80, 0.07);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--color-accent);
        }
        .nav-link-cta {
            background: var(--color-accent) !important;
            color: #1a1050 !important;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: 24px;
            box-shadow: 0 2px 8px rgba(232, 184, 48, 0.35);
            transition: all var(--transition-base);
        }
        .nav-link-cta:hover {
            background: var(--color-accent-glow) !important;
            box-shadow: 0 4px 18px rgba(232, 184, 48, 0.5);
            transform: translateY(-1px);
        }
        .logo-wrap {
            flex-shrink: 0;
            display: flex;
            align-items: center;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-primary);
            font-family: var(--font-heading);
            letter-spacing: 0.02em;
        }
        .logo:hover {
            color: var(--color-primary-light);
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: radial-gradient(circle at 35% 35%, #f5d060, #e8b830 50%, #c4941a 100%);
            box-shadow: 0 0 18px rgba(232, 184, 48, 0.5), 0 0 40px rgba(232, 184, 48, 0.2);
            flex-shrink: 0;
            position: relative;
        }
        .logo-icon::after {
            content: '';
            position: absolute;
            inset: 3px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #fffbe6, transparent 70%);
            opacity: 0.7;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-toggle:hover {
            background: rgba(26, 16, 80, 0.06);
        }

        @media (max-width: 1024px) {
            .header-inner {
                height: 58px;
                padding: 0 16px;
                gap: 10px;
            }
            .nav-group {
                gap: 2px;
            }
            .nav-link {
                padding: 6px 12px;
                font-size: 0.88rem;
                border-radius: 20px;
            }
            .nav-link-cta {
                padding: 6px 14px;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 26px;
                height: 26px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
                padding: 0 14px;
                position: relative;
                justify-content: space-between;
            }
            .nav-group.left,
            .nav-group.right {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 12px 16px;
                border-bottom: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                gap: 4px;
                z-index: 999;
            }
            .nav-group.left.mobile-open,
            .nav-group.right.mobile-open {
                display: flex;
            }
            .nav-group.left {
                top: 100%;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-group.right {
                top: calc(100% + 180px);
                border-radius: 0;
                border-top: 1px solid var(--color-border-light);
            }
            .nav-link {
                width: 100%;
                justify-content: center;
                padding: 10px 16px;
                font-size: 0.95rem;
                border-radius: 12px;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link-cta {
                width: 100%;
                justify-content: center;
                margin-top: 4px;
            }
            .mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
                flex-shrink: 0;
            }
            .logo {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 24px;
                height: 24px;
            }
            .logo-wrap {
                flex-shrink: 0;
                margin: 0 auto;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 52px;
                padding: 0 10px;
            }
            .logo {
                font-size: 0.95rem;
                gap: 5px;
            }
            .logo-icon {
                width: 20px;
                height: 20px;
            }
            .nav-link {
                padding: 8px 12px;
                font-size: 0.9rem;
            }
        }

        .page-hero {
            position: relative;
            background: linear-gradient(160deg, #0f0a30 0%, #1a1050 30%, #1e1460 55%, #1a1050 80%, #0f0a30 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            min-height: 340px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 70px 24px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232, 184, 48, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(245, 208, 96, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 80%, rgba(90, 85, 160, 0.15) 0%, transparent 50%);
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='1' cy='1' r='0.6' fill='rgba(255,255,255,0.25)'/%3E%3Ccircle cx='31' cy='18' r='0.4' fill='rgba(255,255,255,0.18)'/%3E%3Ccircle cx='18' cy='42' r='0.5' fill='rgba(255,255,255,0.2)'/%3E%3Ccircle cx='48' cy='38' r='0.35' fill='rgba(255,255,255,0.15)'/%3E%3Ccircle cx='52' cy='8' r='0.45' fill='rgba(255,255,255,0.22)'/%3E%3C/svg%3E");
            pointer-events: none;
            opacity: 0.6;
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            margin: 0 auto;
        }
        .page-hero-badge {
            display: inline-block;
            background: rgba(232, 184, 48, 0.18);
            color: var(--color-accent-glow);
            padding: 6px 18px;
            border-radius: 24px;
            font-size: 0.88rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
            border: 1px solid rgba(232, 184, 48, 0.3);
        }
        .page-hero h1 {
            font-family: var(--font-heading);
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            color: #ffffff;
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .page-hero p {
            font-size: 1.08rem;
            color: rgba(240, 237, 248, 0.85);
            line-height: 1.7;
            max-width: 560px;
            margin: 0 auto;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(240, 237, 248, 0.65);
            margin-top: 18px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(240, 237, 248, 0.8);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent-glow);
        }
        .breadcrumb .sep {
            color: rgba(240, 237, 248, 0.4);
        }

        @media (max-width: 768px) {
            .page-hero {
                min-height: 260px;
                padding: 50px 18px;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .page-hero p {
                font-size: 0.95rem;
            }
            .page-hero-badge {
                font-size: 0.78rem;
                padding: 5px 14px;
            }
        }

        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: var(--color-surface-alt);
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
            background: var(--color-accent-soft);
            padding: 4px 14px;
            border-radius: 16px;
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: clamp(1.5rem, 2.8vw, 2rem);
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--color-text-soft);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-title {
                font-size: 1.35rem;
            }
        }

        .subcat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .subcat-card {
            background: var(--color-surface-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            cursor: pointer;
        }
        .subcat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }
        .subcat-card:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }
        .subcat-card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            background: var(--color-surface-alt);
        }
        .subcat-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .subcat-card-tag {
            display: inline-block;
            font-size: 0.76rem;
            font-weight: 500;
            color: var(--color-accent);
            background: var(--color-accent-soft);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 10px;
            width: fit-content;
        }
        .subcat-card h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .subcat-card p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            flex: 1;
        }
        .subcat-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            margin-top: 12px;
            transition: gap var(--transition-fast), color var(--transition-fast);
        }
        .subcat-card-link:hover {
            color: var(--color-accent);
            gap: 10px;
        }
        .subcat-card-link i {
            font-size: 0.75rem;
        }

        @media (max-width: 1024px) {
            .subcat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
        }
        @media (max-width: 600px) {
            .subcat-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .subcat-card-body {
                padding: 14px 16px 16px;
            }
            .subcat-card h3 {
                font-size: 1.05rem;
            }
        }

        .article-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .article-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--color-surface-card);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .article-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
            transform: translateX(3px);
        }
        .article-item:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        .article-item-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-surface-alt);
        }
        .article-item-info {
            flex: 1;
            min-width: 0;
        }
        .article-item-info h3 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-item-meta {
            font-size: 0.82rem;
            color: var(--color-text-weak);
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .article-item-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .article-item-arrow {
            flex-shrink: 0;
            color: var(--color-text-weak);
            font-size: 1rem;
            transition: all var(--transition-fast);
        }
        .article-item:hover .article-item-arrow {
            color: var(--color-accent);
            transform: translateX(4px);
        }

        @media (max-width: 600px) {
            .article-item {
                flex-wrap: wrap;
                padding: 14px 16px;
                gap: 12px;
            }
            .article-item-thumb {
                width: 80px;
                height: 56px;
            }
            .article-item-info h3 {
                font-size: 0.95rem;
            }
        }

        .highlight-cards {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .highlight-card {
            background: var(--color-surface-card);
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .highlight-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
            transform: translateY(-2px);
        }
        .highlight-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, #1a1050, #2a1a6e);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--color-accent-glow);
            font-size: 1.3rem;
            box-shadow: 0 4px 14px rgba(26, 16, 80, 0.25);
        }
        .highlight-card h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .highlight-card p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .highlight-cards {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .highlight-card {
                padding: 20px 18px;
            }
            .highlight-icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
        }

        .stats-row {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            text-align: center;
        }
        .stat-item {
            flex: 0 0 auto;
            min-width: 140px;
        }
        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-number span {
            color: var(--color-accent);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin-top: 4px;
        }

        @media (max-width: 600px) {
            .stats-row {
                gap: 20px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .stat-item {
                min-width: 100px;
            }
        }

        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--color-surface-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: rgba(26, 16, 80, 0.03);
        }
        .faq-question i {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        @media (max-width: 600px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.93rem;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 0.88rem;
            }
        }

        .cta-section {
            background: linear-gradient(155deg, #1a1050 0%, #221860 40%, #1e1460 70%, #0f0a30 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
            padding: 60px 24px;
            border-radius: 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 40% 60%, rgba(232, 184, 48, 0.10) 0%, transparent 55%),
                radial-gradient(ellipse at 65% 30%, rgba(245, 208, 96, 0.07) 0%, transparent 50%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: clamp(1.5rem, 2.8vw, 2rem);
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: rgba(240, 237, 248, 0.8);
            font-size: 1.05rem;
            max-width: 500px;
            margin: 0 auto 26px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }
        .btn-accent {
            background: var(--color-accent);
            color: #1a1050;
            box-shadow: 0 4px 20px rgba(232, 184, 48, 0.4);
        }
        .btn-accent:hover {
            background: var(--color-accent-glow);
            box-shadow: 0 6px 28px rgba(232, 184, 48, 0.55);
            transform: translateY(-2px);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(232, 184, 48, 0.35);
        }
        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #ffffff;
            background: transparent;
        }
        .btn-outline-light:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        @media (max-width: 600px) {
            .cta-section {
                padding: 40px 18px;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.93rem;
            }
        }

        .footer {
            background: var(--color-primary-deep);
            color: rgba(240, 237, 248, 0.75);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: #ffffff;
            font-size: 1.15rem;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            margin-top: 8px;
            max-width: 280px;
        }
        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 0.88rem;
            color: rgba(240, 237, 248, 0.65);
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent-glow);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 16px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.82rem;
            color: rgba(240, 237, 248, 0.5);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        .skip-link {
            position: absolute;
            top: -100px;
            left: 16px;
            background: var(--color-accent);
            color: #1a1050;
            padding: 8px 16px;
            border-radius: 6px;
            font-weight: 600;
            z-index: 2000;
            transition: top var(--transition-fast);
        }
        .skip-link:focus {
            top: 10px;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: article */
:root {
            --bg-deep: #060d1a;
            --bg-primary: #0a1226;
            --bg-card: #111b33;
            --bg-card-hover: #152040;
            --bg-surface: #182545;
            --bg-input: #0d1530;
            --text-primary: #e8edf5;
            --text-secondary: #bcc5d6;
            --text-muted: #8895b5;
            --text-article: #d4dbe8;
            --accent-gold: #e2b04a;
            --accent-gold-light: #f0cc70;
            --accent-gold-dark: #b8892a;
            --accent-blue: #5b8def;
            --accent-blue-light: #7eaef7;
            --accent-teal: #4ecdc4;
            --border-subtle: rgba(255,255,255,0.06);
            --border-card: rgba(255,255,255,0.10);
            --border-active: rgba(226,176,74,0.45);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.6);
            --shadow-gold: 0 4px 20px rgba(226,176,74,0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-sans: 'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
            --font-article: 'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Serif SC','Source Han Serif SC',Georgia,'Times New Roman',serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1200px;
            --max-article: 820px;
            --header-height: 68px;
        }
        *,*::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-sans);
            background:var(--bg-deep);
            color:var(--text-primary);
            line-height:1.65;
            min-height:100vh;
            position:relative;
            overflow-x:hidden;
        }
        body::before{
            content:'';
            position:fixed;top:0;left:0;width:100%;height:100%;
            pointer-events:none;z-index:0;
            background:
                radial-gradient(1px 1px at 8% 12%,rgba(255,255,255,0.55),transparent),
                radial-gradient(1px 1px at 18% 28%,rgba(255,255,255,0.45),transparent),
                radial-gradient(1.5px 1.5px at 25% 8%,rgba(255,255,255,0.5),transparent),
                radial-gradient(1px 1px at 35% 42%,rgba(255,255,255,0.4),transparent),
                radial-gradient(1.5px 1.5px at 48% 18%,rgba(255,255,255,0.5),transparent),
                radial-gradient(1px 1px at 55% 55%,rgba(255,255,255,0.35),transparent),
                radial-gradient(1px 1px at 62% 22%,rgba(255,255,255,0.5),transparent),
                radial-gradient(1.5px 1.5px at 72% 38%,rgba(255,255,255,0.45),transparent),
                radial-gradient(1px 1px at 80% 10%,rgba(255,255,255,0.4),transparent),
                radial-gradient(1px 1px at 88% 48%,rgba(255,255,255,0.5),transparent),
                radial-gradient(1.5px 1.5px at 92% 28%,rgba(255,255,255,0.4),transparent),
                radial-gradient(1px 1px at 10% 68%,rgba(255,255,255,0.35),transparent),
                radial-gradient(1px 1px at 28% 78%,rgba(255,255,255,0.4),transparent),
                radial-gradient(1.5px 1.5px at 42% 62%,rgba(255,255,255,0.45),transparent),
                radial-gradient(1px 1px at 58% 72%,rgba(255,255,255,0.35),transparent),
                radial-gradient(1px 1px at 68% 58%,rgba(255,255,255,0.4),transparent),
                radial-gradient(1.5px 1.5px at 78% 68%,rgba(255,255,255,0.4),transparent),
                radial-gradient(1px 1px at 85% 75%,rgba(255,255,255,0.35),transparent),
                radial-gradient(2px 2px at 15% 88%,rgba(226,176,74,0.5),transparent),
                radial-gradient(1.5px 1.5px at 52% 85%,rgba(226,176,74,0.4),transparent),
                radial-gradient(2px 2px at 76% 90%,rgba(226,176,74,0.45),transparent);
        }
        a{text-decoration:none;color:inherit;transition:color var(--transition-fast)}
        img{max-width:100%;height:auto;display:block}
        button{cursor:pointer;border:none;background:none;font-family:inherit}
        input,textarea{font-family:inherit;font-size:inherit}
        .container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
        .container-narrow{width:100%;max-width:var(--max-article);margin:0 auto;padding:0 24px}
        .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
        /* Header */
        .header{
            position:sticky;top:0;z-index:1000;
            background:rgba(10,18,38,0.85);
            backdrop-filter:blur(18px);
            -webkit-backdrop-filter:blur(18px);
            border-bottom:1px solid var(--border-subtle);
            height:var(--header-height);
            display:flex;align-items:center;
        }
        .header-inner{
            width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px;
            display:flex;align-items:center;justify-content:space-between;
            gap:20px;
        }
        .nav-group{display:flex;align-items:center;gap:6px;flex:0 0 auto}
        .nav-group.left{justify-content:flex-start}
        .nav-group.right{justify-content:flex-end;gap:6px}
        .logo-wrap{flex:0 0 auto;text-align:center}
        .logo{
            display:inline-flex;align-items:center;gap:9px;
            font-size:1.25rem;font-weight:700;color:var(--text-primary);
            letter-spacing:0.03em;white-space:nowrap;
            transition:color var(--transition-fast);
        }
        .logo:hover{color:var(--accent-gold-light)}
        .logo-icon{
            display:inline-block;width:32px;height:32px;
            border-radius:50%;
            background:radial-gradient(circle at 35% 35%,#f0cc70 0%,#e2b04a 40%,#8b5a1e 100%);
            box-shadow:0 0 14px rgba(226,176,74,0.5),0 0 28px rgba(226,176,74,0.2);
            position:relative;
        }
        .logo-icon::after{
            content:'';position:absolute;
            top:4px;left:10px;width:6px;height:6px;
            border-radius:50%;background:#fff;
            opacity:0.9;
        }
        .nav-link{
            display:inline-flex;align-items:center;padding:8px 15px;
            border-radius:var(--radius-sm);
            font-size:0.9rem;font-weight:500;color:var(--text-secondary);
            transition:all var(--transition-fast);white-space:nowrap;
        }
        .nav-link:hover{color:var(--text-primary);background:rgba(255,255,255,0.04)}
        .nav-link.active{color:var(--accent-gold);background:rgba(226,176,74,0.08);font-weight:600}
        .nav-link-cta{
            background:linear-gradient(135deg,var(--accent-gold-dark),var(--accent-gold));
            color:#1a1208;font-weight:600;padding:8px 18px;border-radius:22px;
            transition:all var(--transition-base);
        }
        .nav-link-cta:hover{
            background:linear-gradient(135deg,var(--accent-gold),var(--accent-gold-light));
            color:#1a1208;box-shadow:var(--shadow-gold);transform:translateY(-1px);
        }
        .mobile-toggle{
            display:none;font-size:1.35rem;color:var(--text-primary);
            padding:8px;border-radius:var(--radius-sm);
            transition:background var(--transition-fast);
        }
        .mobile-toggle:hover{background:rgba(255,255,255,0.06)}
        /* Mobile nav overlay */
        .mobile-nav-overlay{
            position:fixed;inset:0;background:rgba(0,0,0,0.7);
            z-index:1001;opacity:0;pointer-events:none;
            transition:opacity var(--transition-base);
        }
        .mobile-nav-overlay.open{opacity:1;pointer-events:auto}
        .mobile-nav-panel{
            position:fixed;top:0;right:0;width:300px;max-width:85vw;height:100%;
            background:var(--bg-primary);z-index:1002;
            transform:translateX(100%);transition:transform var(--transition-base);
            display:flex;flex-direction:column;padding:28px 24px;
            border-left:1px solid var(--border-subtle);
        }
        .mobile-nav-panel.open{transform:translateX(0)}
        .mobile-nav-panel .nav-link{
            display:block;padding:14px 16px;font-size:1.05rem;
            border-radius:var(--radius-md);margin-bottom:4px;
        }
        .mobile-nav-panel .nav-link-cta{
            margin-top:12px;text-align:center;display:block;
        }
        .mobile-nav-close{
            align-self:flex-end;font-size:1.3rem;color:var(--text-muted);
            padding:8px 12px;border-radius:var(--radius-sm);
            transition:all var(--transition-fast);margin-bottom:20px;
        }
        .mobile-nav-close:hover{color:var(--text-primary);background:rgba(255,255,255,0.05)}
        /* Article Header Banner */
        .article-banner{
            position:relative;padding:60px 0 50px;
            background:var(--bg-primary);
            border-bottom:1px solid var(--border-subtle);
            overflow:hidden;
        }
        .article-banner::before{
            content:'';position:absolute;top:-40%;right:-15%;
            width:500px;height:500px;
            background:radial-gradient(ellipse,rgba(91,141,239,0.08) 0%,transparent 70%);
            pointer-events:none;border-radius:50%;
        }
        .article-banner::after{
            content:'';position:absolute;bottom:-30%;left:-10%;
            width:400px;height:400px;
            background:radial-gradient(ellipse,rgba(226,176,74,0.06) 0%,transparent 70%);
            pointer-events:none;border-radius:50%;
        }
        /* Breadcrumb */
        .breadcrumb{
            display:flex;flex-wrap:wrap;align-items:center;gap:6px;
            font-size:0.85rem;color:var(--text-muted);
            margin-bottom:20px;position:relative;z-index:1;
        }
        .breadcrumb a{color:var(--text-secondary);transition:color var(--transition-fast)}
        .breadcrumb a:hover{color:var(--accent-gold-light)}
        .breadcrumb .sep{color:var(--text-muted);font-size:0.7rem;margin:0 2px}
        .breadcrumb .current{color:var(--accent-gold);font-weight:500}
        /* Article meta */
        .article-meta-top{
            display:flex;flex-wrap:wrap;align-items:center;gap:16px;
            margin-bottom:16px;position:relative;z-index:1;
        }
        .article-category-tag{
            display:inline-flex;align-items:center;gap:5px;
            padding:6px 14px;border-radius:20px;
            font-size:0.8rem;font-weight:600;
            background:rgba(226,176,74,0.12);color:var(--accent-gold-light);
            border:1px solid rgba(226,176,74,0.25);
        }
        .article-date{
            font-size:0.85rem;color:var(--text-muted);
            display:flex;align-items:center;gap:5px;
        }
        .article-date i{font-size:0.8rem}
        .article-title{
            font-size:2.2rem;font-weight:800;line-height:1.3;
            color:var(--text-primary);letter-spacing:0.02em;
            position:relative;z-index:1;
        }
        .article-author-row{
            display:flex;align-items:center;gap:10px;
            margin-top:16px;position:relative;z-index:1;
            font-size:0.9rem;color:var(--text-secondary);
        }
        .article-author-avatar{
            width:36px;height:36px;border-radius:50%;
            background:linear-gradient(135deg,var(--accent-blue),var(--accent-teal));
            display:flex;align-items:center;justify-content:center;
            font-weight:700;font-size:0.85rem;color:#fff;
        }
        /* Article featured image */
        .article-featured-image{
            margin:32px 0 12px;border-radius:var(--radius-lg);
            overflow:hidden;position:relative;z-index:1;
            box-shadow:var(--shadow-lg);
        }
        .article-featured-image img{
            width:100%;aspect-ratio:16/9;object-fit:cover;
            display:block;
        }
        /* Article body */
        .article-body-section{
            padding:40px 0 56px;position:relative;z-index:1;
        }
        .article-content-card{
            background:var(--bg-card);
            border:1px solid var(--border-card);
            border-radius:var(--radius-lg);
            padding:44px 48px;
            box-shadow:var(--shadow-md);
        }
        .article-content-card .article-body{
            font-family:var(--font-article);
            font-size:1.08rem;line-height:1.88;
            color:var(--text-article);
            letter-spacing:0.01em;
        }
        .article-body h2{
            font-family:var(--font-sans);
            font-size:1.55rem;font-weight:700;color:var(--text-primary);
            margin:36px 0 16px;padding-bottom:10px;
            border-bottom:1px solid var(--border-card);
            letter-spacing:0.02em;
        }
        .article-body h3{
            font-family:var(--font-sans);
            font-size:1.25rem;font-weight:600;color:var(--text-primary);
            margin:28px 0 12px;
        }
        .article-body p{margin-bottom:18px}
        .article-body ul,.article-body ol{margin:12px 0 20px 24px}
        .article-body li{margin-bottom:8px}
        .article-body blockquote{
            border-left:4px solid var(--accent-gold);
            background:rgba(226,176,74,0.05);
            margin:24px 0;padding:18px 24px;
            border-radius:0 var(--radius-md) var(--radius-md) 0;
            color:var(--text-secondary);
            font-style:italic;
        }
        .article-body img{
            border-radius:var(--radius-md);margin:20px auto;
            box-shadow:var(--shadow-md);
        }
        .article-body a{
            color:var(--accent-gold-light);
            border-bottom:1px dotted var(--accent-gold);
            transition:all var(--transition-fast);
        }
        .article-body a:hover{color:var(--accent-gold);border-bottom-style:solid}
        .article-body code{
            background:rgba(255,255,255,0.06);padding:2px 8px;
            border-radius:4px;font-size:0.9em;font-family:'SF Mono','Consolas','Monaco',monospace;
        }
        .article-body pre{
            background:rgba(0,0,0,0.4);padding:20px 24px;
            border-radius:var(--radius-md);overflow-x:auto;
            margin:20px 0;font-size:0.9rem;
            border:1px solid var(--border-subtle);
        }
        .article-body pre code{background:none;padding:0}
        /* Article divider */
        .article-divider{
            border:none;height:1px;
            background:linear-gradient(90deg,transparent,var(--border-card),transparent);
            margin:36px 0;
        }
        /* Article tags row */
        .article-tags-row{
            display:flex;flex-wrap:wrap;align-items:center;gap:8px;
            margin-top:28px;padding-top:20px;
            border-top:1px solid var(--border-card);
        }
        .article-tags-row span.label-text{font-size:0.85rem;color:var(--text-muted)}
        .tag-pill{
            display:inline-block;padding:5px 12px;border-radius:16px;
            font-size:0.8rem;background:rgba(255,255,255,0.04);
            color:var(--text-secondary);border:1px solid var(--border-subtle);
            transition:all var(--transition-fast);
        }
        .tag-pill:hover{background:rgba(255,255,255,0.08);color:var(--text-primary)}
        /* Not found */
        .not-found-section{
            padding:100px 0 120px;text-align:center;
        }
        .not-found-icon{
            font-size:4rem;color:var(--accent-gold);margin-bottom:20px;
            opacity:0.7;
        }
        .not-found-title{font-size:1.8rem;font-weight:700;margin-bottom:12px;color:var(--text-primary)}
        .not-found-text{color:var(--text-muted);margin-bottom:28px;font-size:1.05rem}
        /* Related articles */
        .related-section{
            padding:50px 0 64px;
            background:var(--bg-primary);
            border-top:1px solid var(--border-subtle);
        }
        .section-label{
            display:inline-flex;align-items:center;gap:8px;
            font-size:0.78rem;font-weight:600;text-transform:uppercase;
            letter-spacing:0.08em;color:var(--accent-gold-light);
            margin-bottom:8px;
        }
        .section-label::before{
            content:'';display:inline-block;width:20px;height:2px;
            background:var(--accent-gold);border-radius:1px;
        }
        .section-heading{
            font-size:1.6rem;font-weight:700;color:var(--text-primary);
            margin-bottom:32px;letter-spacing:0.02em;
        }
        .related-grid{
            display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
        }
        .related-card{
            background:var(--bg-card);border:1px solid var(--border-card);
            border-radius:var(--radius-md);overflow:hidden;
            transition:all var(--transition-base);
            box-shadow:var(--shadow-sm);
        }
        .related-card:hover{
            transform:translateY(-4px);
            box-shadow:var(--shadow-lg);
            border-color:var(--border-active);
            background:var(--bg-card-hover);
        }
        .related-card-img{
            aspect-ratio:16/10;overflow:hidden;background:var(--bg-surface);
        }
        .related-card-img img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-slow)}
        .related-card:hover .related-card-img img{transform:scale(1.04)}
        .related-card-body{padding:18px 20px 20px}
        .related-card-tag{
            font-size:0.72rem;font-weight:600;color:var(--accent-gold-light);
            margin-bottom:6px;text-transform:uppercase;letter-spacing:0.04em;
        }
        .related-card-title{
            font-size:0.95rem;font-weight:600;line-height:1.4;
            color:var(--text-primary);
            display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
            overflow:hidden;
        }
        .related-card-date{
            font-size:0.78rem;color:var(--text-muted);margin-top:8px;
        }
        /* CTA Section */
        .cta-section{
            padding:70px 0;text-align:center;
            background:linear-gradient(180deg,var(--bg-deep),var(--bg-primary));
            position:relative;overflow:hidden;
        }
        .cta-section::before{
            content:'';position:absolute;top:20%;left:50%;transform:translateX(-50%);
            width:600px;height:600px;
            background:radial-gradient(ellipse,rgba(226,176,74,0.07) 0%,transparent 65%);
            pointer-events:none;border-radius:50%;
        }
        .cta-title{
            font-size:1.7rem;font-weight:700;color:var(--text-primary);
            position:relative;z-index:1;margin-bottom:12px;
        }
        .cta-text{
            color:var(--text-secondary);font-size:1.05rem;
            position:relative;z-index:1;margin-bottom:28px;max-width:500px;
            margin-left:auto;margin-right:auto;
        }
        .btn{
            display:inline-flex;align-items:center;gap:8px;
            padding:13px 28px;border-radius:26px;
            font-weight:600;font-size:0.95rem;
            transition:all var(--transition-base);
            position:relative;z-index:1;
        }
        .btn-primary{
            background:linear-gradient(135deg,var(--accent-gold-dark),var(--accent-gold));
            color:#1a1208;box-shadow:var(--shadow-gold);
        }
        .btn-primary:hover{
            background:linear-gradient(135deg,var(--accent-gold),var(--accent-gold-light));
            transform:translateY(-2px);box-shadow:0 6px 24px rgba(226,176,74,0.3);
        }
        .btn-outline{
            border:2px solid var(--accent-gold);color:var(--accent-gold-light);
            background:transparent;
        }
        .btn-outline:hover{
            background:rgba(226,176,74,0.1);border-color:var(--accent-gold-light);
            color:var(--accent-gold-light);
        }
        .btn-lg{padding:15px 36px;font-size:1.05rem;border-radius:30px}
        /* Footer */
        .footer{
            background:var(--bg-deep);border-top:1px solid var(--border-subtle);
            padding:50px 0 28px;
        }
        .footer-grid{
            display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;
            margin-bottom:36px;
        }
        .footer-brand p{color:var(--text-muted);font-size:0.88rem;line-height:1.7;margin-top:10px}
        .footer-col h4{font-size:0.9rem;font-weight:700;color:var(--text-primary);margin-bottom:14px;letter-spacing:0.02em}
        .footer-col a{
            display:block;color:var(--text-muted);font-size:0.85rem;
            padding:6px 0;transition:color var(--transition-fast);
        }
        .footer-col a:hover{color:var(--accent-gold-light)}
        .footer-bottom{
            display:flex;flex-wrap:wrap;justify-content:space-between;
            align-items:center;padding-top:20px;
            border-top:1px solid var(--border-subtle);
            font-size:0.8rem;color:var(--text-muted);gap:10px;
        }
        /* Reading progress bar */
        .reading-progress{
            position:fixed;top:var(--header-height);left:0;height:3px;
            background:linear-gradient(90deg,var(--accent-gold),var(--accent-gold-light));
            z-index:999;transition:width 0.1s linear;border-radius:0 2px 2px 0;
        }
        /* Responsive */
        @media(max-width:1024px){
            .nav-group.right{gap:2px}
            .nav-link{padding:8px 10px;font-size:0.82rem}
            .logo{font-size:1.1rem}
            .logo-icon{width:28px;height:28px}
            .article-title{font-size:1.8rem}
            .article-content-card{padding:32px 28px}
            .related-grid{grid-template-columns:repeat(2,1fr)}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
        }
        @media(max-width:768px){
            .header-inner{gap:12px}
            .nav-group.right{display:none}
            .mobile-toggle{display:flex;align-items:center;justify-content:center}
            .logo-wrap{margin:0 auto}
            .nav-group.left{flex:1}
            .article-banner{padding:40px 0 32px}
            .article-title{font-size:1.5rem}
            .article-content-card{padding:24px 18px;border-radius:var(--radius-md)}
            .article-body{font-size:1rem;line-height:1.78}
            .article-body h2{font-size:1.3rem}
            .article-body h3{font-size:1.1rem}
            .related-grid{grid-template-columns:1fr 1fr;gap:16px}
            .related-card-body{padding:14px}
            .related-card-title{font-size:0.88rem}
            .footer-grid{grid-template-columns:1fr 1fr;gap:22px}
            .cta-section{padding:48px 0}
            .cta-title{font-size:1.35rem}
            .container,.container-narrow{padding:0 16px}
        }
        @media(max-width:520px){
            .header-inner{padding:0 12px}
            .logo{font-size:1rem;gap:6px}
            .logo-icon{width:24px;height:24px}
            .nav-link{padding:6px 8px;font-size:0.78rem}
            .article-banner{padding:28px 0 24px}
            .article-title{font-size:1.3rem}
            .article-meta-top{gap:10px}
            .article-category-tag{font-size:0.72rem;padding:4px 10px}
            .article-content-card{padding:18px 14px;border-radius:var(--radius-sm)}
            .article-body{font-size:0.95rem;line-height:1.72}
            .article-body h2{font-size:1.15rem;margin:24px 0 10px}
            .article-body blockquote{padding:12px 16px;margin:16px 0}
            .related-grid{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr;gap:20px}
            .footer-bottom{flex-direction:column;text-align:center}
            .section-heading{font-size:1.25rem}
            .btn-lg{padding:12px 24px;font-size:0.9rem}
        }