/* roulang page: index */
:root {
            --primary: #0f172a;
            --primary-light: #1e293b;
            --accent: #3b82f6;
            --accent-hover: #2563eb;
            --accent-soft: #dbeafe;
            --surface: #ffffff;
            --surface-alt: #f8fafc;
            --text-main: #0f172a;
            --text-soft: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-card: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
            --shadow-hover: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
            --transition: 0.2s ease;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            background-color: var(--surface-alt);
            color: var(--text-main);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        *, *::before, *::after { box-sizing: border-box; }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; display: block; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }
        .section-padding { padding: 80px 20px; }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-soft);
            max-width: 600px;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            border: none;
            font-size: 1rem;
            cursor: pointer;
        }
        .btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-hover); }
        .btn-outline {
            border: 2px solid var(--border);
            background: transparent;
            color: var(--text-main);
            padding: 10px 24px;
            border-radius: var(--radius);
            font-weight: 600;
            transition: all var(--transition);
        }
        .btn-outline:hover { border-color: var(--accent); color: var(--accent); }
        .card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
        /* 导航搜索主导布局 */
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
        }
        .nav-links { display: flex; gap: 24px; align-items: center; }
        .nav-links a {
            font-weight: 500;
            color: var(--text-soft);
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
        }
        .nav-links a:hover, .nav-links a.active { color: var(--accent); border-bottom-color: var(--accent); }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 8px 16px;
            gap: 8px;
            min-width: 240px;
            flex: 1;
            max-width: 400px;
            transition: all var(--transition);
        }
        .search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }
        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 0.95rem;
            width: 100%;
        }
        .search-box button { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1.1rem; }
        .hero-background {
            background: linear-gradient(135deg, rgba(15,23,42,0.8) 0%, rgba(30,41,59,0.85) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: white;
        }
        .stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .stat-card {
            background: rgba(255,255,255,0.05);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
        }
        .stat-number { font-size: 2.5rem; font-weight: 700; color: var(--accent); }
        .card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 28px; }
        .category-card { position: relative; overflow: hidden; border-radius: var(--radius-lg); }
        .category-card img { width: 100%; height: 200px; object-fit: cover; }
        .category-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
            padding: 20px;
            color: white;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--accent); }
        .faq-question { font-weight: 600; font-size: 1.1rem; margin-bottom: 8px; }
        .faq-answer { color: var(--text-soft); line-height: 1.7; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
        @media (max-width: 1024px) {
            .stat-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .nav-container { flex-direction: column; align-items: stretch; }
            .nav-links { justify-content: center; flex-wrap: wrap; }
            .search-box { max-width: 100%; }
            .section-padding { padding: 60px 20px; }
            .stat-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 520px) {
            .card-grid { grid-template-columns: 1fr; }
            .section-title { font-size: 1.6rem; }
        }

/* roulang page: article */
:root {
            --color-brand: #6366f1;
            --color-brand-dark: #4f46e5;
            --color-brand-light: #eef2ff;
            --color-accent: #06b6d4;
            --color-warm: #f59e0b;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-soft: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
            --shadow-lg: 0 10px 30px rgba(0,0,0,0.1), 0 4px 8px rgba(0,0,0,0.05);
            --shadow-xl: 0 20px 50px rgba(0,0,0,0.12), 0 8px 16px rgba(0,0,0,0.06);
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

        *,
        *::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: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

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

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header ===== */
        header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
        }

        .nav-container {
            display: flex;
            align-items: center;
            gap: 20px;
            padding-top: 14px;
            padding-bottom: 14px;
            flex-wrap: wrap;
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-brand);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-logo:hover {
            opacity: 0.85;
        }

        .search-box {
            display: flex;
            align-items: center;
            flex: 1;
            min-width: 200px;
            max-width: 480px;
            background: #f1f5f9;
            border-radius: 999px;
            padding: 0 18px;
            height: 44px;
            gap: 10px;
            border: 2px solid transparent;
            transition: all var(--transition-base);
        }
        .search-box:focus-within {
            border-color: var(--color-brand);
            background: #ffffff;
            box-shadow: 0 0 0 4px rgba(99,102,241,0.1);
        }
        .search-box i {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            flex-shrink: 0;
            transition: color var(--transition-base);
        }
        .search-box:focus-within i {
            color: var(--color-brand);
        }
        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            font-size: 0.95rem;
            color: var(--color-text);
            min-width: 0;
        }
        .search-box input::placeholder {
            color: var(--color-text-muted);
        }
        .search-box button {
            background: var(--color-brand);
            color: #fff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .search-box button:hover {
            background: var(--color-brand-dark);
            transform: scale(1.05);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--color-brand);
            background: var(--color-brand-light);
        }
        .nav-links a.active {
            color: #ffffff;
            background: var(--color-brand);
            font-weight: 600;
        }

        /* ===== Breadcrumb Banner ===== */
        .breadcrumb-banner {
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            padding: 40px 0;
        }
        .breadcrumb-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30,41,59,0.82) 0%, rgba(30,41,59,0.65) 50%, rgba(79,70,229,0.55) 100%);
            z-index: 1;
        }
        .breadcrumb-banner .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.8);
        }
        .breadcrumb-nav a {
            color: rgba(255,255,255,0.85);
            transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: #ffffff;
        }
        .breadcrumb-nav .separator {
            color: rgba(255,255,255,0.45);
            font-size: 0.7rem;
        }
        .breadcrumb-nav .current {
            color: #ffffff;
            font-weight: 500;
        }
        .breadcrumb-category-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(255,255,255,0.18);
            color: #ffffff;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }

        /* ===== Main Content Area ===== */
        main {
            flex: 1;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0;
            padding-top: 0;
            padding-bottom: 60px;
        }

        .article-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            margin-top: -28px;
            position: relative;
            z-index: 3;
        }

        .article-cover {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
            display: block;
        }

        .article-body {
            padding: 36px 40px 48px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .article-meta .tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--color-brand-light);
            color: var(--color-brand);
            letter-spacing: 0.01em;
        }
        .article-meta .date {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .article-meta .date i {
            font-size: 0.8rem;
        }

        .article-body h1 {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .article-excerpt {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-bottom: 28px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--color-border-light);
        }

        .article-content {
            font-size: 1rem;
            line-height: 1.85;
            color: var(--color-text);
        }
        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-top: 36px;
            margin-bottom: 16px;
            color: var(--color-text);
            letter-spacing: -0.01em;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--color-brand-light);
        }
        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-top: 28px;
            margin-bottom: 12px;
            color: var(--color-text);
        }
        .article-content h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-top: 22px;
            margin-bottom: 10px;
            color: var(--color-text);
        }
        .article-content p {
            margin-bottom: 16px;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 16px;
            padding-left: 24px;
        }
        .article-content li {
            margin-bottom: 6px;
        }
        .article-content ul li::marker {
            color: var(--color-brand);
        }
        .article-content blockquote {
            border-left: 4px solid var(--color-brand);
            background: var(--color-brand-light);
            padding: 16px 20px;
            margin: 20px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--color-text-soft);
            font-style: italic;
        }
        .article-content blockquote p {
            margin-bottom: 0;
        }
        .article-content code {
            background: #f1f5f9;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: #e11d48;
            font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
        }
        .article-content pre {
            background: #1e293b;
            color: #e2e8f0;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 20px 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
            font-size: inherit;
        }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content a {
            color: var(--color-brand);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color var(--transition-fast);
        }
        .article-content a:hover {
            color: var(--color-brand-dark);
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 0.9rem;
        }
        .article-content th,
        .article-content td {
            border: 1px solid var(--color-border);
            padding: 10px 14px;
            text-align: left;
        }
        .article-content th {
            background: var(--color-brand-light);
            font-weight: 600;
            color: var(--color-brand-dark);
        }
        .article-content hr {
            border: none;
            border-top: 1px solid var(--color-border-light);
            margin: 28px 0;
        }

        /* ===== Not Found State ===== */
        .not-found-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 60px 40px;
            text-align: center;
            margin-top: -28px;
            position: relative;
            z-index: 3;
        }
        .not-found-card .icon-circle {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--color-brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
            font-size: 2rem;
            color: var(--color-brand);
        }
        .not-found-card h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text);
        }
        .not-found-card p {
            color: var(--color-text-soft);
            margin-bottom: 24px;
            font-size: 1rem;
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 48px 0 20px;
        }
        .related-section .section-title {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section .section-title::before {
            content: '';
            width: 4px;
            height: 24px;
            background: var(--color-brand);
            border-radius: 2px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }
        .related-card {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            border: 1px solid var(--color-border-light);
        }
        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-brand-light);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .related-card-body {
            padding: 16px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .tag-sm {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 600;
            background: var(--color-brand-light);
            color: var(--color-brand);
            margin-bottom: 8px;
            width: fit-content;
        }
        .related-card h4 {
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--color-text);
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .desc {
            font-size: 0.82rem;
            color: var(--color-text-soft);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .related-card .date-sm {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-top: 8px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, #1e293b 0%, #312e81 50%, #1e293b 100%);
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            text-align: center;
            color: #ffffff;
            margin-top: 40px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(99,102,241,0.2);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            background: rgba(6,182,212,0.18);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container-cta {
            position: relative;
            z-index: 2;
        }
        .cta-section h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.75);
            margin-bottom: 24px;
            font-size: 1rem;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--color-brand);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(99,102,241,0.35);
        }
        .btn-primary:hover {
            background: var(--color-brand-dark);
            box-shadow: 0 6px 20px rgba(99,102,241,0.45);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255,255,255,0.5);
        }
        .btn-outline:hover {
            border-color: #ffffff;
            background: rgba(255,255,255,0.08);
        }
        .btn-warm {
            background: var(--color-warm);
            color: #1e293b;
            box-shadow: 0 4px 14px rgba(245,158,11,0.35);
        }
        .btn-warm:hover {
            background: #fbbf24;
            box-shadow: 0 6px 20px rgba(245,158,11,0.45);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.82rem;
        }
        .btn-lg {
            padding: 14px 34px;
            font-size: 1.05rem;
        }

        /* ===== Footer ===== */
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .nav-container {
                gap: 14px;
            }
            .search-box {
                max-width: 340px;
            }
            .article-body {
                padding: 28px 24px 36px;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
            .related-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-container {
                flex-wrap: wrap;
                gap: 10px;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .search-box {
                order: 3;
                max-width: 100%;
                flex: 1 1 100%;
                min-width: 100%;
                height: 40px;
                padding: 0 14px;
            }
            .nav-links {
                order: 2;
                gap: 2px;
            }
            .nav-links a {
                padding: 6px 12px;
                font-size: 0.82rem;
            }
            .breadcrumb-banner {
                padding: 28px 0;
            }
            .breadcrumb-nav {
                font-size: 0.8rem;
            }
            .article-card {
                margin-top: -20px;
                border-radius: var(--radius-md);
            }
            .article-cover {
                max-height: 280px;
            }
            .article-body {
                padding: 22px 18px 30px;
            }
            .article-body h1 {
                font-size: 1.35rem;
            }
            .article-excerpt {
                font-size: 0.95rem;
            }
            .article-content {
                font-size: 0.93rem;
                line-height: 1.75;
            }
            .article-content h2 {
                font-size: 1.25rem;
                margin-top: 28px;
            }
            .article-content h3 {
                font-size: 1.08rem;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .related-card img {
                height: 140px;
            }
            .related-card-body {
                padding: 12px 14px 16px;
            }
            .related-card h4 {
                font-size: 0.85rem;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.25rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .not-found-card {
                padding: 40px 24px;
            }
            .not-found-card h2 {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .nav-container {
                gap: 8px;
                padding-top: 10px;
                padding-bottom: 10px;
            }
            .nav-logo {
                font-size: 1rem;
            }
            .nav-links a {
                padding: 5px 10px;
                font-size: 0.78rem;
                border-radius: 6px;
            }
            .search-box {
                height: 38px;
                padding: 0 12px;
                gap: 6px;
            }
            .search-box input {
                font-size: 0.85rem;
            }
            .search-box button {
                width: 28px;
                height: 28px;
                font-size: 0.7rem;
            }
            .breadcrumb-banner {
                padding: 22px 0;
            }
            .breadcrumb-nav {
                font-size: 0.75rem;
                gap: 4px;
            }
            .article-card {
                margin-top: -16px;
                border-radius: 10px;
            }
            .article-cover {
                max-height: 200px;
            }
            .article-body {
                padding: 16px 14px 24px;
            }
            .article-body h1 {
                font-size: 1.2rem;
            }
            .article-meta {
                gap: 8px;
            }
            .article-meta .tag {
                font-size: 0.72rem;
                padding: 3px 10px;
            }
            .article-meta .date {
                font-size: 0.75rem;
            }
            .article-excerpt {
                font-size: 0.88rem;
                margin-bottom: 20px;
                padding-bottom: 16px;
            }
            .article-content {
                font-size: 0.88rem;
                line-height: 1.7;
            }
            .article-content h2 {
                font-size: 1.15rem;
                margin-top: 24px;
            }
            .article-content blockquote {
                padding: 12px 14px;
                font-size: 0.9rem;
            }
            .article-content pre {
                padding: 14px 16px;
                font-size: 0.8rem;
                border-radius: 8px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .related-card {
                flex-direction: row;
                align-items: stretch;
            }
            .related-card img {
                width: 110px;
                height: auto;
                min-height: 100%;
                flex-shrink: 0;
            }
            .related-card-body {
                padding: 10px 12px 12px;
                justify-content: center;
            }
            .related-card h4 {
                font-size: 0.82rem;
                -webkit-line-clamp: 2;
            }
            .related-card .desc {
                display: none;
            }
            .cta-section {
                padding: 24px 16px;
                margin-top: 28px;
            }
            .cta-section h3 {
                font-size: 1.1rem;
            }
            .cta-section p {
                font-size: 0.88rem;
            }
            .btn {
                padding: 10px 22px;
                font-size: 0.85rem;
            }
            .not-found-card {
                padding: 30px 16px;
                border-radius: 10px;
            }
            .not-found-card .icon-circle {
                width: 60px;
                height: 60px;
                font-size: 1.5rem;
            }
            .not-found-card h2 {
                font-size: 1.15rem;
            }
            .footer-grid {
                gap: 20px;
            }
        }

        @media (max-width: 380px) {
            .nav-links a {
                padding: 4px 8px;
                font-size: 0.72rem;
            }
            .search-box {
                height: 36px;
                padding: 0 10px;
                gap: 4px;
                border-radius: 20px;
            }
            .search-box input {
                font-size: 0.8rem;
            }
            .article-body h1 {
                font-size: 1.1rem;
            }
        }

/* roulang page: category1 */
/* ============================================================
           设计变量体系 - 科技感主题
           ============================================================ */
        :root {
            --primary: #0ea5e9;
            --primary-glow: #38bdf8;
            --primary-dark: #0284c7;
            --primary-deep: #0c4a6e;
            --accent: #f59e0b;
            --accent-glow: #fbbf24;
            --bg-deep: #090d1a;
            --bg-dark: #0f172a;
            --bg-card: #1a2332;
            --bg-card-hover: #1e2d3d;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --text-dark: #1e293b;
            --text-dark-secondary: #475569;
            --border-subtle: rgba(148, 163, 184, 0.12);
            --border-card: rgba(148, 163, 184, 0.18);
            --border-glow: rgba(14, 165, 233, 0.35);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.2);
            --shadow-glow: 0 0 24px rgba(14, 165, 233, 0.2);
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.18), 0 0 1px rgba(255, 255, 255, 0.04) inset;
            --transition-fast: 180ms ease;
            --transition-base: 280ms ease;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;
        }

        /* ============================================================
           基础 Reset & Base
           ============================================================ */
        *,
        *::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);
            line-height: 1.7;
            color: var(--text-dark);
            background-color: var(--bg-light);
            min-height: 100vh;
            font-size: 16px;
            letter-spacing: 0.01em;
        }

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

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

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

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

        ul {
            list-style: none;
        }

        /* ============================================================
           容器
           ============================================================ */
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============================================================
           导航 Header
           ============================================================ */
        header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        header .container {
            padding-top: 14px;
            padding-bottom: 14px;
        }

        .nav-container {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

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

        /* 搜索框 - 导航视觉中心 */
        .search-box {
            display: flex;
            align-items: center;
            background: #f1f5f9;
            border-radius: var(--radius-full);
            padding: 9px 16px;
            gap: 10px;
            flex: 1;
            min-width: 200px;
            max-width: 480px;
            border: 2px solid transparent;
            transition: all var(--transition-base);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.08);
        }

        .search-box i.fa-magnifying-glass {
            color: #94a3b8;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            font-size: 0.95rem;
            color: var(--text-dark);
            min-width: 0;
            padding: 2px 0;
        }

        .search-box input::placeholder {
            color: #94a3b8;
        }

        .search-box button {
            background: var(--primary);
            color: #fff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .search-box button:hover {
            background: var(--primary-dark);
            box-shadow: 0 2px 8px rgba(14, 165, 233, 0.35);
        }

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

        .nav-links a {
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(14, 165, 233, 0.06);
        }

        .nav-links a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
        }

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

        @media (max-width: 900px) {
            .nav-container {
                gap: 12px;
            }
            .search-box {
                order: 3;
                flex: 1 1 100%;
                max-width: 100%;
                min-width: 0;
            }
            .nav-logo {
                font-size: 1.2rem;
            }
            .nav-links a {
                padding: 6px 14px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            .nav-container {
                gap: 10px;
                justify-content: space-between;
            }
            .nav-logo {
                font-size: 1.05rem;
            }
            .nav-links {
                gap: 2px;
            }
            .nav-links a {
                padding: 5px 10px;
                font-size: 0.8rem;
            }
            .search-box {
                padding: 7px 12px;
            }
            .search-box input {
                font-size: 0.85rem;
            }
        }

        /* ============================================================
           分类 Banner
           ============================================================ */
        .category-banner {
            position: relative;
            background: linear-gradient(140deg, #0f172a 0%, #1a2332 30%, #0c4a6e 60%, #0f172a 100%);
            padding: 72px 0 64px;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(14, 165, 233, 0.08) 0%, transparent 70%);
            z-index: 1;
        }

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

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

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

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

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

        .category-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
            line-height: 1.25;
        }

        .category-banner h1 span {
            background: linear-gradient(135deg, #38bdf8, #0ea5e9);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-banner .banner-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.65);
            max-width: 620px;
            line-height: 1.8;
        }

        .banner-stats {
            display: flex;
            gap: 36px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

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

        .banner-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: #38bdf8;
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
        }

        .banner-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        @media (max-width: 768px) {
            .category-banner {
                padding: 48px 0 40px;
            }
            .category-banner h1 {
                font-size: 1.9rem;
            }
            .category-banner .banner-desc {
                font-size: 0.95rem;
            }
            .banner-stats {
                gap: 20px;
            }
            .banner-stat-num {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .category-banner h1 {
                font-size: 1.5rem;
            }
            .banner-stats {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* ============================================================
           板块通用间距
           ============================================================ */
        .section {
            padding: 64px 0;
        }

        .section-dark {
            background: var(--bg-deep);
            color: var(--text-primary);
        }

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

        .section-muted {
            background: #f1f5f9;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: inherit;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .section-header .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            max-width: 500px;
            margin: 0 auto;
        }

        .section-dark .section-header h2 {
            color: #fff;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.5);
        }

        @media (max-width: 768px) {
            .section {
                padding: 44px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .section-header {
                margin-bottom: 30px;
            }
        }

        /* ============================================================
           筛选栏
           ============================================================ */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            background: #fff;
            padding: 16px 20px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-subtle);
            margin-bottom: 32px;
            position: relative;
            z-index: 5;
            margin-top: -28px;
        }

        .filter-label {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--text-dark);
            flex-shrink: 0;
            letter-spacing: 0.03em;
        }

        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-tag {
            padding: 7px 16px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
            background: #f1f5f9;
            color: var(--text-dark-secondary);
            border: 1.5px solid transparent;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .filter-tag:hover {
            background: #e2e8f0;
            color: var(--text-dark);
        }

        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(14, 165, 233, 0.25);
        }

        .filter-sort {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-dark-secondary);
            flex-shrink: 0;
        }

        .filter-sort select {
            border: 1.5px solid #e2e8f0;
            border-radius: var(--radius-sm);
            padding: 7px 12px;
            font-size: 0.85rem;
            background: #fff;
            color: var(--text-dark);
            cursor: pointer;
            font-family: inherit;
            transition: border-color var(--transition-fast);
        }

        .filter-sort select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.06);
        }

        @media (max-width: 768px) {
            .filter-bar {
                padding: 12px 16px;
                gap: 10px;
                margin-top: -20px;
                border-radius: var(--radius-md);
            }
            .filter-sort {
                margin-left: 0;
                width: 100%;
                justify-content: flex-end;
            }
        }

        /* ============================================================
           游戏卡片网格
           ============================================================ */
        .games-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .game-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            position: relative;
        }

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

        .game-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e2e8f0;
        }

        .game-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .game-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(8px);
            color: #fbbf24;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            z-index: 2;
        }

        .game-card-rating-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(8px);
            color: #fff;
            padding: 5px 10px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 700;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .game-card-rating-badge i {
            color: #f59e0b;
            font-size: 0.7rem;
        }

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

        .game-card-type {
            font-size: 0.75rem;
            color: var(--primary);
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .game-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.35;
            letter-spacing: 0.01em;
        }

        .game-card-body .game-card-desc {
            font-size: 0.85rem;
            color: var(--text-dark-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .game-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid #f1f5f9;
        }

        .game-card-meta i {
            margin-right: 4px;
            color: var(--primary);
        }

        .game-card-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 700;
            transition: all var(--transition-fast);
            align-self: flex-start;
            letter-spacing: 0.02em;
        }

        .game-card-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 14px rgba(14, 165, 233, 0.35);
            transform: translateY(-1px);
        }

        @media (max-width: 1024px) {
            .games-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 600px) {
            .games-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .game-card-body {
                padding: 14px 16px 16px;
            }
            .game-card-body h3 {
                font-size: 1.05rem;
            }
        }

        /* ============================================================
           热门排行
           ============================================================ */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .rank-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
        }

        .rank-num {
            font-size: 1.6rem;
            font-weight: 800;
            font-family: var(--font-mono);
            color: #38bdf8;
            width: 44px;
            text-align: center;
            flex-shrink: 0;
            letter-spacing: -0.03em;
        }

        .rank-item:nth-child(1) .rank-num {
            color: #fbbf24;
            text-shadow: 0 0 18px rgba(251, 191, 36, 0.4);
        }
        .rank-item:nth-child(2) .rank-num {
            color: #c0c0c0;
            text-shadow: 0 0 12px rgba(192, 192, 192, 0.3);
        }
        .rank-item:nth-child(3) .rank-num {
            color: #cd853f;
            text-shadow: 0 0 10px rgba(205, 133, 63, 0.3);
        }

        .rank-item img {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

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

        .rank-info h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 3px;
            letter-spacing: 0.01em;
        }

        .rank-info .rank-type {
            font-size: 0.78rem;
            color: #94a3b8;
        }

        .rank-score {
            font-size: 1.1rem;
            font-weight: 800;
            color: #f59e0b;
            flex-shrink: 0;
            font-family: var(--font-mono);
        }

        @media (max-width: 600px) {
            .rank-item {
                padding: 12px 14px;
                gap: 10px;
            }
            .rank-num {
                font-size: 1.3rem;
                width: 32px;
            }
            .rank-item img {
                width: 42px;
                height: 42px;
            }
            .rank-info h4 {
                font-size: 0.9rem;
            }
        }

        /* ============================================================
           特色推荐大卡
           ============================================================ */
        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-md);
        }

        .featured-card-img {
            aspect-ratio: 4 / 3;
            overflow: hidden;
        }

        .featured-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .featured-card-content {
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-card-content .featured-badge {
            display: inline-block;
            background: rgba(245, 158, 11, 0.15);
            color: #fbbf24;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
            align-self: flex-start;
        }

        .featured-card-content h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .featured-card-content p {
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        .featured-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            align-self: flex-start;
            letter-spacing: 0.02em;
        }

        .featured-cta:hover {
            box-shadow: 0 6px 22px rgba(245, 158, 11, 0.4);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-card-content {
                padding: 24px 20px;
            }
            .featured-card-content h3 {
                font-size: 1.25rem;
            }
        }

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

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: #e2e8f0;
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--text-dark);
            letter-spacing: 0.01em;
            user-select: none;
        }

        .faq-question i {
            color: var(--primary);
            transition: transform var(--transition-fast);
            font-size: 0.9rem;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
            color: var(--text-dark-secondary);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        .faq-item.open .faq-answer {
            max-height: 260px;
            padding: 0 22px 18px;
        }

        @media (max-width: 600px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }

        /* ============================================================
           CTA 板块
           ============================================================ */
        .cta-block {
            background: linear-gradient(135deg, var(--primary-deep), var(--bg-dark));
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-glow);
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(14, 165, 233, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
        }

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

        .cta-block h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .cta-block p {
            color: rgba(255, 255, 255, 0.6);
            max-width: 520px;
            margin: 0 auto 24px;
            font-size: 0.95rem;
        }

        .cta-btn-group {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary-lg {
            padding: 13px 30px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-lg:hover {
            background: #d97706;
            box-shadow: 0 6px 24px rgba(245, 158, 11, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline-lg {
            padding: 13px 30px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

        @media (max-width: 600px) {
            .cta-block {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-block h2 {
                font-size: 1.4rem;
            }
            .btn-primary-lg,
            .btn-outline-lg {
                padding: 11px 22px;
                font-size: 0.85rem;
            }
        }

        /* ============================================================
           页脚 Footer
           ============================================================ */
        footer {
            background: #090d1a;
            color: #94a3b8;
            padding-top: 60px;
            padding-bottom: 30px;
        }

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

        footer h4 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
        }

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

        footer ul li,
        footer ul li a {
            font-size: 0.85rem;
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

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

        footer .footer-brand {
            color: #fff;
            font-weight: 800;
            font-size: 1.5rem;
            margin-bottom: 12px;
        }

        footer .footer-brand-desc {
            font-size: 0.85rem;
            max-width: 280px;
            line-height: 1.7;
        }

        footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 40px;
            padding-top: 18px;
            text-align: center;
            font-size: 0.78rem;
            color: #64748b;
        }

        @media (max-width: 768px) {
            footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            footer {
                padding-top: 44px;
                padding-bottom: 24px;
            }
        }

        @media (max-width: 500px) {
            footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            footer .footer-brand-desc {
                max-width: 100%;
            }
        }

        /* ============================================================
           通用辅助
           ============================================================ */
        .text-glow {
            text-shadow: 0 0 20px rgba(14, 165, 233, 0.3);
        }

        .divider {
            border: none;
            border-top: 1px solid var(--border-subtle);
            margin: 0;
        }

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

        /* ============================================================
           Focus 可访问性
           ============================================================ */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(14, 165, 233, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .filter-tag:focus-visible,
        .nav-links a:focus-visible {
            outline-offset: 1px;
        }