/* roulang page: index */
:root {
            --primary: #4F46E5;
            --primary-dark: #3730A3;
            --primary-light: #818CF8;
            --primary-bg: #EEF2FF;
            --accent: #F59E0B;
            --accent-dark: #D97706;
            --accent-light: #FEF3C7;
            --bg: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-card: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-xs: 0 1px 3px rgba(0,0,0,0.04);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
            --shadow-lg: 0 8px 24px rgba(0,0,0,0.10), 0 4px 8px rgba(0,0,0,0.05);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.14), 0 6px 16px rgba(0,0,0,0.06);
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

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

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

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

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

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

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            height: var(--nav-height);
            transition: box-shadow var(--transition);
        }

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

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

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

        .logo-link:hover {
            opacity: 0.85;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: var(--radius);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

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

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

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(79,70,229,0.3);
            margin-left: 8px;
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(79,70,229,0.4);
            transform: translateY(-1px);
            color: #fff;
        }

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

        .mobile-menu-toggle:hover {
            background: var(--border);
        }

        /* Hero Section */
        .hero {
            position: relative;
            padding: 80px 0 90px;
            background: linear-gradient(170deg, #1E1B4B 0%, #312E81 30%, #4F46E5 70%, #6366F1 100%);
            overflow: hidden;
            color: #fff;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            mix-blend-mode: overlay;
            pointer-events: none;
        }

        .hero-glow {
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245,158,11,0.25) 0%, transparent 70%);
            top: -120px;
            right: -100px;
            pointer-events: none;
        }

        .hero-glow-2 {
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(129,140,248,0.3) 0%, transparent 70%);
            bottom: -140px;
            left: -80px;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .hero-text {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(255,255,255,0.25);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
            letter-spacing: 0.02em;
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #34D399;
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.6); }
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: #fff;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, #FDE68A 0%, #F59E0B 50%, #FBBF24 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.1rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.85);
            margin-bottom: 32px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: #fff;
            color: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(0,0,0,0.15);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0,0,0,0.2);
            color: var(--primary-dark);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.5);
        }

        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.8);
            color: #fff;
        }

        .btn-accent {
            background: var(--accent);
            color: #1E293B;
            box-shadow: 0 4px 16px rgba(245,158,11,0.35);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245,158,11,0.45);
            color: #1E293B;
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-card-stack {
            position: relative;
            width: 100%;
            max-width: 420px;
        }

        .hero-floating-card {
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(16px);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-xl);
        }

        .hero-floating-card .stat-row {
            display: flex;
            gap: 20px;
            margin-bottom: 18px;
        }

        .hero-floating-card .stat-item {
            text-align: center;
            flex: 1;
        }

        .hero-floating-card .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #FDE68A;
            line-height: 1;
            margin-bottom: 4px;
        }

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

        .hero-floating-card .game-icons-row {
            display: flex;
            gap: 10px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-floating-card .game-icon-dot {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(255,255,255,0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            transition: all var(--transition-fast);
        }

        .hero-floating-card .game-icon-dot:hover {
            background: rgba(255,255,255,0.25);
            transform: translateY(-3px);
        }

        /* Section Common */
        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Services Section */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
            border-color: var(--border);
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            opacity: 0;
            transition: opacity var(--transition);
        }

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

        .service-card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: var(--primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 18px;
            transition: all var(--transition);
        }

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

        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .service-card p {
            font-size: 0.93rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        .service-card-image {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius);
            margin-top: 16px;
        }

        /* Category Entrance */
        .category-entrance {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            gap: 36px;
            transition: all var(--transition);
            cursor: pointer;
        }

        .category-entrance:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-3px);
        }

        .category-entrance-image {
            width: 180px;
            height: 180px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            flex-shrink: 0;
        }

        .category-entrance-info h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .category-entrance-info p {
            color: var(--text-muted);
            margin-bottom: 16px;
            line-height: 1.6;
        }

        .category-entrance-info .btn {
            padding: 10px 22px;
            font-size: 0.9rem;
        }

        /* News List Section */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

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

        .news-card-thumb {
            width: 80px;
            height: 80px;
            border-radius: var(--radius);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--border-light);
        }

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

        .news-card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 3px 10px;
            border-radius: 50px;
            margin-bottom: 8px;
        }

        .news-card h4 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card h4 a {
            color: inherit;
            transition: color var(--transition-fast);
        }

        .news-card h4 a:hover {
            color: var(--primary);
        }

        .news-card-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .news-card-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            gap: 12px;
        }

        .news-empty {
            text-align: center;
            padding: 50px 20px;
            color: var(--text-muted);
            font-size: 1rem;
            grid-column: 1 / -1;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 2px dashed var(--border);
        }

        /* Stats Section */
        .stats-section {
            background: linear-gradient(135deg, #1E1B4B 0%, #312E81 100%);
            padding: 60px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .stats-section .bg-pattern {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            pointer-events: none;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
            z-index: 1;
        }

        .stat-card {
            text-align: center;
            padding: 30px 20px;
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255,255,255,0.12);
            transition: all var(--transition);
        }

        .stat-card:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-4px);
        }

        .stat-card-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: #FDE68A;
            line-height: 1;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }

        .stat-card-label {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.75);
            font-weight: 500;
        }

        /* Features Section */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .feature-card {
            display: flex;
            gap: 22px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            align-items: flex-start;
        }

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

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-dark);
            flex-shrink: 0;
            transition: all var(--transition);
        }

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

        .feature-info h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }

        .feature-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

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

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

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

        .faq-question {
            width: 100%;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            background: none;
            text-align: left;
            transition: color var(--transition-fast);
            gap: 16px;
        }

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

        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

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

        .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: 0.93rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #4F46E5 0%, #3730A3 100%);
            padding: 70px 0;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .cta-content p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.8);
            margin-bottom: 28px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-content .btn {
            font-size: 1rem;
            padding: 15px 36px;
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 50px 0 30px;
        }

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

        .footer-brand .logo-link {
            color: #fff;
            font-size: 1.25rem;
            margin-bottom: 12px;
            display: inline-flex;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: #94A3B8;
            line-height: 1.65;
            margin-top: 10px;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: #94A3B8;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 22px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: #64748B;
        }

        .footer-bottom a {
            color: #94A3B8;
            transition: color var(--transition-fast);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 36px;
                text-align: center;
            }
            .hero-text {
                max-width: 100%;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual {
                order: -1;
            }
            .hero-card-stack {
                max-width: 320px;
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-list {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .hero h1 {
                font-size: 2.3rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: all var(--transition);
                pointer-events: none;
                z-index: 999;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-link {
                width: 100%;
                padding: 14px 18px;
                font-size: 1rem;
            }
            .nav-cta-btn {
                width: 100%;
                text-align: center;
                justify-content: center;
                margin-left: 0;
                margin-top: 8px;
            }
            .nav-link.active::after {
                display: none;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .category-entrance {
                flex-direction: column;
                text-align: center;
            }
            .category-entrance-image {
                width: 140px;
                height: 140px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card-num {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section {
                padding: 50px 0;
            }
            .hero {
                padding: 50px 0 60px;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 16px;
            }
            .news-card {
                flex-direction: column;
                gap: 12px;
            }
            .news-card-thumb {
                width: 100%;
                height: 140px;
            }
            .feature-card {
                flex-direction: column;
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-buttons {
                flex-direction: column;
                width: 100%;
            }
            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card-num {
                font-size: 1.6rem;
            }
            .stat-card-label {
                font-size: 0.8rem;
            }
            .service-card {
                padding: 22px 18px;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .cta-content h2 {
                font-size: 1.5rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 16px 18px;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #5b3df5;
            --color-primary-dark: #4630c9;
            --color-primary-light: #eeebff;
            --color-primary-surface: #f6f4ff;
            --color-accent: #ff6b4a;
            --color-accent-dark: #e55a3a;
            --color-accent-light: #fff0ec;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-bg: #f7f8fc;
            --color-surface: #ffffff;
            --color-surface-alt: #fafbfd;
            --color-text: #1a1a2e;
            --color-text-secondary: #5a5d6e;
            --color-text-muted: #9498a4;
            --color-text-placeholder: #b4b8c2;
            --color-border: #e8ecf2;
            --color-border-light: #f0f2f6;
            --color-border-deep: #d5d9e0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.03);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.08);
            --shadow-xl: 0 24px 56px rgba(0, 0, 0, 0.10);
            --shadow-card-hover: 0 12px 32px rgba(91, 61, 245, 0.10);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', monospace;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1200px;
            --max-width-article: 820px;
            --header-height: 72px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        main {
            flex: 1 0 auto;
        }

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

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

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

        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

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

        .container--wide {
            max-width: 1280px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-height);
            box-shadow: var(--shadow-xs);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            background: rgba(255, 255, 255, 0.92);
        }

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

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.3px;
            transition: opacity var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
        }

        .logo-link:hover {
            opacity: 0.82;
            color: var(--color-text);
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(91, 61, 245, 0.25);
        }

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

        .nav-link {
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-link:hover {
            color: var(--color-primary);
            background: var(--color-primary-surface);
        }

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

        .nav-cta-btn {
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(91, 61, 245, 0.25);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            margin-left: 8px;
        }

        .nav-cta-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 22px rgba(91, 61, 245, 0.35);
            color: #fff;
        }

        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(91, 61, 245, 0.2);
        }

        .mobile-menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-text);
            background: var(--color-surface-alt);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .mobile-menu-toggle:hover {
            background: var(--color-primary-surface);
            border-color: var(--color-primary-light);
            color: var(--color-primary);
        }

        /* ============ ARTICLE BANNER ============ */
        .article-banner {
            background: linear-gradient(170deg, #2d2055 0%, #3a2a6a 30%, #4a3578 60%, #5b3df5 100%);
            position: relative;
            overflow: hidden;
            padding: 48px 0;
            min-height: 180px;
            display: flex;
            align-items: center;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }

        .article-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--color-bg), transparent);
        }

        .article-banner-content {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.9);
            transition: color var(--transition-fast);
            text-decoration: none;
        }

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

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: rgba(255, 255, 255, 0.6);
            pointer-events: none;
        }

        /* ============ MAIN CONTENT AREA ============ */
        .article-main-section {
            padding: 0 0 60px;
            margin-top: -30px;
            position: relative;
            z-index: 5;
        }

        .article-card {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
        }

        .article-featured-image {
            width: 100%;
            max-height: 460px;
            object-fit: cover;
            display: block;
            border-bottom: 1px solid var(--color-border-light);
        }

        .article-body {
            padding: 36px 40px 44px;
        }

        .article-meta-top {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 0.82rem;
            font-weight: 600;
            background: var(--color-primary-surface);
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .article-date {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-reading-time {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text);
            line-height: 1.35;
            letter-spacing: -0.4px;
            margin-bottom: 20px;
        }

        .article-divider {
            border: none;
            border-top: 1px solid var(--color-border);
            margin: 20px 0 28px;
        }

        /* 文章正文内容样式 */
        .article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--color-text);
            word-break: break-word;
        }

        .article-content h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 36px 0 14px;
            padding-left: 16px;
            border-left: 4px solid var(--color-primary);
            line-height: 1.35;
        }

        .article-content h3 {
            font-size: 1.28rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 28px 0 10px;
            line-height: 1.4;
        }

        .article-content h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 22px 0 8px;
        }

        .article-content p {
            margin-bottom: 16px;
        }

        .article-content ul,
        .article-content ol {
            margin: 12px 0 20px;
            padding-left: 24px;
        }

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

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

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

        .article-content li::marker {
            color: var(--color-primary);
        }

        .article-content blockquote {
            margin: 24px 0;
            padding: 20px 24px;
            background: var(--color-primary-surface);
            border-left: 4px solid var(--color-primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-style: italic;
            color: var(--color-text-secondary);
        }

        .article-content blockquote p {
            margin-bottom: 6px;
        }

        .article-content img {
            border-radius: var(--radius-lg);
            margin: 20px auto;
            box-shadow: var(--shadow-md);
            max-width: 100%;
        }

        .article-content code {
            background: var(--color-surface-alt);
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            font-family: var(--font-mono);
            font-size: 0.9em;
            color: var(--color-primary-dark);
            border: 1px solid var(--color-border-light);
        }

        .article-content pre {
            background: #1a1a2e;
            color: #e0e0e0;
            padding: 20px 24px;
            border-radius: var(--radius-lg);
            overflow-x: auto;
            margin: 20px 0;
            font-family: var(--font-mono);
            font-size: 0.9rem;
            line-height: 1.6;
        }

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

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 0.95rem;
        }

        .article-content table th,
        .article-content table td {
            padding: 12px 16px;
            border: 1px solid var(--color-border);
            text-align: left;
        }

        .article-content table th {
            background: var(--color-primary-surface);
            font-weight: 600;
            color: var(--color-text);
        }

        .article-content table tr:nth-child(even) td {
            background: var(--color-surface-alt);
        }

        .article-content strong {
            font-weight: 700;
            color: var(--color-text);
        }

        .article-content a {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1px;
            text-decoration-color: var(--color-primary-light);
            transition: all var(--transition-fast);
        }

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

        /* ============ NOT FOUND STATE ============ */
        .not-found-card {
            text-align: center;
            padding: 60px 30px;
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
        }

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

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

        .not-found-desc {
            color: var(--color-text-secondary);
            margin-bottom: 28px;
            font-size: 0.95rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            white-space: nowrap;
            letter-spacing: 0.1px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            box-shadow: 0 4px 16px rgba(91, 61, 245, 0.28);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(91, 61, 245, 0.38);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(91, 61, 245, 0.2);
        }

        .btn-outline {
            border: 2px solid var(--color-border-deep);
            color: var(--color-text-secondary);
            background: var(--color-surface);
        }

        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-surface);
        }

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

        .section-label {
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .section-title {
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.3px;
            margin-bottom: 28px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            box-shadow: var(--shadow-xs);
            text-decoration: none;
            color: inherit;
            display: flex;
            flex-direction: column;
        }

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

        .related-card-image {
            width: 100%;
            height: 150px;
            object-fit: cover;
            display: block;
        }

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

        .related-card-category {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .related-card-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .related-empty {
            text-align: center;
            padding: 40px;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            grid-column: 1 / -1;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            padding: 56px 0;
            background: linear-gradient(160deg, #2d2055 0%, #3a2868 50%, #4a3578 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: soft-light;
        }

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

        .cta-title {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .cta-desc {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 28px;
            font-size: 1.05rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-primary {
            background: #fff;
            color: var(--color-primary-dark);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
            font-weight: 700;
        }

        .cta-section .btn-primary:hover {
            background: #fafafa;
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
            transform: translateY(-2px);
            color: var(--color-primary-dark);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #1a1a2e;
            color: rgba(255, 255, 255, 0.75);
            padding: 50px 0 24px;
            flex-shrink: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .logo-link {
            color: #fff;
            margin-bottom: 12px;
            display: inline-flex;
            font-size: 1.25rem;
        }

        .footer-brand .logo-link:hover {
            color: rgba(255, 255, 255, 0.85);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.55);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.8px;
            text-transform: uppercase;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 16px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .article-body {
                padding: 28px 28px 36px;
            }
            .article-title {
                font-size: 1.7rem;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .header-inner {
                height: 64px;
            }
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--color-surface);
                flex-direction: column;
                padding: 16px 20px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: all var(--transition-slow);
                z-index: 99;
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .main-nav.is-open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-link {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-md);
                font-size: 1rem;
            }
            .nav-cta-btn {
                margin-left: 0;
                width: 100%;
                justify-content: center;
                padding: 13px 20px;
                border-radius: var(--radius-md);
                font-size: 1rem;
                margin-top: 4px;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .article-banner {
                padding: 32px 0;
                min-height: 130px;
            }
            .article-body {
                padding: 22px 18px 30px;
            }
            .article-title {
                font-size: 1.4rem;
            }
            .article-content {
                font-size: 1rem;
            }
            .article-content h2 {
                font-size: 1.3rem;
            }
            .article-content h3 {
                font-size: 1.15rem;
            }
            .article-featured-image {
                max-height: 280px;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .related-card-image {
                height: 120px;
            }
            .related-card-body {
                padding: 12px 14px 14px;
            }
            .related-card-title {
                font-size: 0.88rem;
            }
            .cta-title {
                font-size: 1.35rem;
            }
            .cta-desc {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 36px 0 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .article-body {
                padding: 18px 14px 24px;
            }
            .article-title {
                font-size: 1.22rem;
            }
            .article-meta-top {
                gap: 8px;
            }
            .article-category-badge {
                font-size: 0.75rem;
                padding: 5px 10px;
            }
            .article-date,
            .article-reading-time {
                font-size: 0.78rem;
            }
            .article-featured-image {
                max-height: 200px;
                border-radius: 0;
            }
            .article-card {
                border-radius: var(--radius-lg);
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .related-card {
                flex-direction: row;
                align-items: stretch;
                border-radius: var(--radius-md);
            }
            .related-card-image {
                width: 100px;
                height: auto;
                min-height: 90px;
                object-fit: cover;
                flex-shrink: 0;
                border-radius: var(--radius-md) 0 0 var(--radius-md);
            }
            .related-card-body {
                padding: 10px 14px;
                justify-content: center;
            }
            .related-card-title {
                font-size: 0.85rem;
                -webkit-line-clamp: 2;
            }
            .article-content h2 {
                font-size: 1.18rem;
                padding-left: 12px;
                border-left-width: 3px;
            }
            .article-content blockquote {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .cta-section {
                padding: 40px 0;
            }
            .cta-title {
                font-size: 1.2rem;
            }
            .not-found-card {
                padding: 40px 20px;
            }
            .not-found-icon {
                font-size: 3rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                gap: 4px;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-darker: #1e40af;
            --primary-light: #dbeafe;
            --primary-lightest: #eff6ff;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fef3c7;
            --accent-glow: #fbbf24;
            --text: #1e293b;
            --text-secondary: #475569;
            --text-light: #64748b;
            --text-lighter: #94a3b8;
            --bg: #f8fafc;
            --bg-white: #ffffff;
            --bg-warm: #fefcf8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --border-medium: #cbd5e1;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --shadow-xl: 0 24px 60px rgba(0,0,0,0.15);
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --radius-full: 50%;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-spring: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --max-width: 1200px;
            --nav-height: 68px;
        }

        /* ========== 基础Reset ========== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

        button {
            cursor: pointer;
        }

        ul, ol {
            list-style: none;
        }

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

        /* ========== 容器 ========== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .container--narrow {
            max-width: 960px;
        }

        /* ========== Header & 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-xs);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }
        .logo-link:hover {
            opacity: 0.8;
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-lightest);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-lightest);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
            transition: all var(--transition-spring);
            margin-left: 8px;
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.45);
            color: #fff;
        }
        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
        }

        /* 移动端菜单 */
        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            border-radius: var(--radius-xs);
            transition: background var(--transition-fast);
            z-index: 1001;
        }
        .mobile-menu-toggle:hover {
            background: var(--bg);
        }
        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .mobile-menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .mobile-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-wrap {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-light);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--text-lighter);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }

        /* ========== 分类Banner ========== */
        .category-banner {
            position: relative;
            background: linear-gradient(135deg, #1e3a5f 0%, #1a2744 40%, #162032 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            padding: 72px 0;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26,39,68,0.75) 0%, rgba(22,32,50,0.88) 100%);
            z-index: 1;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
        }
        .banner-content {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 16px;
            max-width: 700px;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(245, 158, 11, 0.2);
            color: var(--accent-glow);
            border: 1px solid rgba(245, 158, 11, 0.3);
            letter-spacing: 0.03em;
        }
        .banner-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.03em;
            line-height: 1.2;
        }
        .banner-title .highlight {
            color: var(--accent-glow);
        }
        .banner-desc {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.8);
            line-height: 1.7;
            max-width: 560px;
        }
        .banner-stats {
            display: flex;
            gap: 32px;
            margin-top: 8px;
            flex-wrap: wrap;
        }
        .banner-stat {
            text-align: left;
        }
        .banner-stat .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
        }
        .banner-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.65);
            margin-top: 2px;
        }

        /* ========== 主内容区 ========== */
        .main-content {
            flex: 1;
            padding: 48px 0 64px;
            background: var(--bg);
        }

        /* ========== 板块标题 ========== */
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header--left {
            text-align: left;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 1.85rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-header--left .section-subtitle {
            margin: 0;
        }

        /* ========== 分类标签过滤 ========== */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 36px;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-white);
            border: 1.5px solid var(--border);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            user-select: none;
        }
        .filter-tag:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: var(--primary-lightest);
        }
        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }

        /* ========== 攻略卡片网格 ========== */
        .guides-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .guide-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-medium);
        }
        .guide-card-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg);
        }
        .guide-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .guide-card:hover .guide-card-image img {
            transform: scale(1.04);
        }
        .guide-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            border-radius: 16px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(0,0,0,0.7);
            color: #fff;
            backdrop-filter: blur(4px);
            letter-spacing: 0.02em;
        }
        .guide-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .guide-card-game {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.03em;
        }
        .guide-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .guide-card:hover .guide-card-title {
            color: var(--primary);
        }
        .guide-card-excerpt {
            font-size: 0.875rem;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .guide-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-lighter);
            padding-top: 8px;
            border-top: 1px solid var(--border-light);
        }
        .guide-card-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* ========== 侧边栏布局 ========== */
        .content-with-sidebar {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }
        .sidebar {
            position: sticky;
            top: calc(var(--nav-height) + 24px);
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        /* ========== 热门排行卡片 ========== */
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card-title .icon {
            color: var(--accent);
        }
        .hot-list-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }
        .hot-list-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .hot-list-item:first-child {
            padding-top: 0;
        }
        .hot-list-item:hover {
            padding-left: 4px;
        }
        .hot-rank {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: var(--radius-xs);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.85rem;
            color: #fff;
            background: var(--text-lighter);
        }
        .hot-rank.rank-1 {
            background: linear-gradient(135deg, #f59e0b, #ef4444);
        }
        .hot-rank.rank-2 {
            background: linear-gradient(135deg, #f59e0b, #d97706);
        }
        .hot-rank.rank-3 {
            background: linear-gradient(135deg, #d97706, #b45309);
        }
        .hot-list-info {
            flex: 1;
            min-width: 0;
        }
        .hot-list-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .hot-list-item:hover .hot-list-title {
            color: var(--primary);
        }
        .hot-list-heat {
            font-size: 0.78rem;
            color: var(--text-lighter);
            margin-top: 3px;
        }

        /* ========== 订阅卡片 ========== */
        .subscribe-card {
            background: linear-gradient(135deg, var(--primary), var(--primary-darker));
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .subscribe-card h4 {
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .subscribe-card p {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.8);
            margin-bottom: 16px;
            line-height: 1.5;
        }
        .subscribe-input-wrap {
            display: flex;
            gap: 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(255,255,255,0.25);
        }
        .subscribe-input-wrap input {
            flex: 1;
            padding: 10px 14px;
            background: transparent;
            color: #fff;
            font-size: 0.9rem;
            min-width: 0;
        }
        .subscribe-input-wrap input::placeholder {
            color: rgba(255,255,255,0.55);
        }
        .subscribe-input-wrap button {
            padding: 10px 16px;
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            font-size: 0.85rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .subscribe-input-wrap button:hover {
            background: var(--accent-glow);
            color: #1e293b;
        }

        /* ========== 步骤流程区块 ========== */
        .how-it-works {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            margin-top: 48px;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .step-card {
            text-align: center;
            padding: 28px 20px;
            border-radius: var(--radius-lg);
            background: var(--bg);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .step-card:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-full);
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            margin-bottom: 16px;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
        }
        .step-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-card p {
            font-size: 0.875rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ========== FAQ区块 ========== */
        .faq-section {
            margin-top: 48px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-xs);
        }
        .faq-item:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-sm);
        }
        .faq-item.active {
            border-color: var(--primary-light);
            box-shadow: var(--shadow);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            cursor: pointer;
            transition: color var(--transition-fast);
            gap: 12px;
            background: transparent;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-item.active .faq-question {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: var(--radius-full);
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--text-light);
            transition: all var(--transition);
        }
        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ========== CTA区块 ========== */
        .cta-section {
            margin-top: 56px;
            background: linear-gradient(135deg, #1e3a5f 0%, #1a2744 50%, #162032 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,39,68,0.8) 0%, rgba(22,32,50,0.9) 100%);
            z-index: 1;
            border-radius: var(--radius-xl);
        }
        .cta-section > * {
            position: relative;
            z-index: 2;
        }
        .cta-section h3 {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.8);
            font-size: 1rem;
            max-width: 500px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 700;
            background: var(--accent);
            color: #1e293b;
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
            transition: all var(--transition-spring);
        }
        .btn-primary-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(245, 158, 11, 0.55);
            background: var(--accent-glow);
        }
        .btn-outline-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.4);
            transition: all var(--transition-fast);
        }
        .btn-outline-large:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.1);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0f172a;
            color: rgba(255,255,255,0.7);
            padding: 56px 0 28px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo-link {
            color: #fff;
            font-size: 1.3rem;
            margin-bottom: 12px;
            display: inline-flex;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 9px;
        }
        .footer-col ul li a {
            font-size: 0.875rem;
            color: rgba(255,255,255,0.55);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .guides-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .content-with-sidebar {
                grid-template-columns: 1fr 300px;
                gap: 24px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .banner-title {
                font-size: 2.2rem;
            }
            .how-it-works {
                padding: 36px 28px;
            }
            .cta-section {
                padding: 44px 32px;
            }
            .cta-section h3 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .header-inner {
                gap: 12px;
            }
            .main-nav {
                gap: 2px;
            }
            .nav-link {
                padding: 6px 10px;
                font-size: 0.85rem;
            }
            .nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.8rem;
                margin-left: 2px;
            }
            .logo-link {
                font-size: 1.15rem;
                gap: 7px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .category-banner {
                padding: 48px 0;
            }
            .banner-title {
                font-size: 1.8rem;
            }
            .banner-desc {
                font-size: 0.95rem;
            }
            .banner-stats {
                gap: 20px;
            }
            .banner-stat .stat-number {
                font-size: 1.5rem;
            }
            .guides-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .content-with-sidebar {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .sidebar {
                position: static;
                order: 3;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .how-it-works {
                padding: 28px 20px;
                border-radius: var(--radius-lg);
            }
            .section-title {
                font-size: 1.5rem;
            }
            .filter-tags {
                gap: 8px;
                margin-bottom: 24px;
            }
            .filter-tag {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .cta-section {
                padding: 36px 24px;
                border-radius: var(--radius-lg);
                margin-top: 36px;
            }
            .cta-section h3 {
                font-size: 1.35rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
            .btn-primary-large,
            .btn-outline-large {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .main-content {
                padding: 32px 0 48px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --nav-height: 60px;
            }
            .site-header {
                height: var(--nav-height);
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.97);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                transform: translateY(-110%);
                opacity: 0;
                transition: all var(--transition);
                z-index: 999;
                pointer-events: none;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-link {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                border-left: 3px solid var(--primary);
                border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            }
            .nav-cta-btn {
                width: 100%;
                justify-content: center;
                margin-left: 0;
                margin-top: 8px;
                padding: 13px;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
            }
            .category-banner {
                padding: 36px 0;
            }
            .banner-title {
                font-size: 1.5rem;
            }
            .banner-desc {
                font-size: 0.875rem;
            }
            .banner-stats {
                gap: 16px;
            }
            .banner-stat .stat-number {
                font-size: 1.3rem;
            }
            .banner-stat .stat-label {
                font-size: 0.75rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tag {
                padding: 5px 11px;
                font-size: 0.78rem;
            }
            .guide-card-body {
                padding: 14px;
                gap: 6px;
            }
            .guide-card-title {
                font-size: 0.95rem;
            }
            .guide-card-excerpt {
                font-size: 0.82rem;
            }
            .how-it-works {
                padding: 22px 16px;
                margin-top: 32px;
            }
            .step-card {
                padding: 20px 16px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 0.84rem;
            }
            .cta-section {
                padding: 28px 18px;
                margin-top: 28px;
            }
            .cta-section h3 {
                font-size: 1.2rem;
            }
            .cta-buttons {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary-large,
            .btn-outline-large {
                width: 100%;
                justify-content: center;
                padding: 13px 20px;
            }
            .subscribe-card {
                padding: 20px 16px;
            }
            .sidebar-card {
                padding: 18px 16px;
            }
        }