/* roulang page: index */
:root {
            --primary: #1a2332;
            --primary-light: #2a3a52;
            --accent: #d4a853;
            --accent-light: #e8c97a;
            --accent-dark: #b8923f;
            --bg-body: #0f1520;
            --bg-card: #1a2332;
            --bg-card-hover: #1f2a3d;
            --text-primary: #f0ece4;
            --text-secondary: #a8a09a;
            --text-muted: #6b6560;
            --border-color: #2a3a52;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0,0,0,0.3);
            --shadow-sm: 0 4px 16px rgba(0,0,0,0.2);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 48px;
            line-height: 1.7;
        }

        .text-accent {
            color: var(--accent);
        }

        .bg-accent {
            background: var(--accent);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 2px solid transparent;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--accent);
            color: #1a2332;
            border-color: var(--accent);
        }

        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(212, 168, 83, 0.3);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(212, 168, 83, 0.2);
        }

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

        .btn-outline:hover {
            background: var(--accent);
            color: #1a2332;
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(212, 168, 83, 0.15);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-ghost {
            background: rgba(212, 168, 83, 0.08);
            color: var(--accent);
            border-color: transparent;
        }

        .btn-ghost:hover {
            background: rgba(212, 168, 83, 0.18);
            transform: translateY(-2px);
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 32px;
            transition: var(--transition);
        }

        .card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(212, 168, 83, 0.2);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            background: rgba(212, 168, 83, 0.12);
            color: var(--accent);
            border: 1px solid rgba(212, 168, 83, 0.15);
        }

        .badge-light {
            background: rgba(240, 236, 228, 0.06);
            color: var(--text-secondary);
            border-color: rgba(240, 236, 228, 0.08);
        }

        .divider {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            border-radius: 4px;
            margin-bottom: 24px;
        }

        /* ===== HEADER / NAV (桌面) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 21, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 58, 82, 0.4);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(15, 21, 32, 0.98);
            box-shadow: 0 4px 30px rgba(0,0,0,0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.03em;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #1a2332;
            font-weight: 900;
        }

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

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-desktop a {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .nav-desktop a:hover {
            color: var(--text-primary);
            background: rgba(240, 236, 228, 0.05);
        }

        .nav-desktop a.active {
            color: var(--accent);
            background: rgba(212, 168, 83, 0.1);
        }

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

        .nav-desktop .btn-nav-cta {
            background: var(--accent);
            color: #1a2332;
            padding: 8px 24px;
            border-radius: 50px;
            font-weight: 600;
        }

        .nav-desktop .btn-nav-cta:hover {
            background: var(--accent-light);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(212, 168, 83, 0.25);
        }

        /* ===== 移动端底部 Tab ===== */
        .bottom-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 21, 32, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid rgba(42, 58, 82, 0.4);
            padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
            justify-content: space-around;
            align-items: center;
        }

        .bottom-tab-bar .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            border-radius: 12px;
            color: var(--text-muted);
            font-size: 0.65rem;
            font-weight: 500;
            transition: var(--transition);
            min-width: 56px;
        }

        .bottom-tab-bar .tab-item i {
            font-size: 1.25rem;
            transition: var(--transition);
        }

        .bottom-tab-bar .tab-item:hover {
            color: var(--text-secondary);
            background: rgba(240, 236, 228, 0.04);
        }

        .bottom-tab-bar .tab-item.active {
            color: var(--accent);
        }

        .bottom-tab-bar .tab-item.active i {
            text-shadow: 0 0 20px rgba(212, 168, 83, 0.3);
        }

        /* ===== HERO ===== */
        .hero {
            padding: 160px 0 100px;
            background: linear-gradient(180deg, #0f1520 0%, #1a2332 50%, #0f1520 100%);
            position: relative;
            overflow: hidden;
            min-height: 90vh;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(212, 168, 83, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(212, 168, 83, 0.04) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 50px;
            background: rgba(212, 168, 83, 0.1);
            border: 1px solid rgba(212, 168, 83, 0.15);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 28px;
        }

        .hero h1 {
            font-size: 3.8rem;
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

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

        .hero p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            gap: 48px;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(42, 58, 82, 0.3);
        }

        .hero-stat h3 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: -0.02em;
        }

        .hero-stat p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== 特色板块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            text-align: center;
            padding: 40px 28px;
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: rgba(212, 168, 83, 0.08);
            border: 1px solid rgba(212, 168, 83, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            color: var(--accent);
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: rgba(212, 168, 83, 0.15);
            transform: scale(1.05);
            box-shadow: 0 8px 24px rgba(212, 168, 83, 0.1);
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

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

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .category-card {
            position: relative;
            padding: 48px 40px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: linear-gradient(145deg, #1a2332, #1f2a3d);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .category-card:hover {
            border-color: rgba(212, 168, 83, 0.3);
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }

        .category-card .cat-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(212, 168, 83, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 20px;
        }

        .category-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .category-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .category-card .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.95rem;
        }

        .category-card .cat-link i {
            transition: var(--transition);
        }

        .category-card .cat-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 最新资讯列表 ===== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .news-card {
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .news-card .meta .cat-tag {
            padding: 2px 12px;
            border-radius: 50px;
            background: rgba(212, 168, 83, 0.08);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 500;
        }

        .news-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            transition: var(--transition);
        }

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

        .news-card .excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .read-more {
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 4px;
        }

        .news-card .read-more i {
            transition: var(--transition);
        }

        .news-card .read-more:hover i {
            transform: translateX(4px);
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border-color);
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: linear-gradient(135deg, #1a2332 0%, #0f1520 100%);
            border-top: 1px solid rgba(42, 58, 82, 0.3);
            border-bottom: 1px solid rgba(42, 58, 82, 0.3);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.03em;
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        /* ===== 使用流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), rgba(212, 168, 83, 0.1));
            z-index: 0;
        }

        .step-card {
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 32px 20px;
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: #1a2332;
            font-size: 1.2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 0 0 6px rgba(212, 168, 83, 0.1);
        }

        .step-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .faq-item:hover {
            border-color: rgba(212, 168, 83, 0.15);
        }

        .faq-question {
            width: 100%;
            padding: 20px 28px;
            background: transparent;
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: var(--transition);
        }

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

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

        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 28px 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            display: none;
        }

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

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1a2332 0%, #0f1520 100%);
            border-top: 1px solid rgba(42, 58, 82, 0.3);
        }

        .cta-box {
            background: linear-gradient(145deg, rgba(212, 168, 83, 0.06), rgba(212, 168, 83, 0.02));
            border: 1px solid rgba(212, 168, 83, 0.15);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .cta-box p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #0a0e16;
            border-top: 1px solid rgba(42, 58, 82, 0.2);
            padding: 48px 0 120px 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition);
        }

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

        .footer-bottom {
            padding-top: 32px;
            border-top: 1px solid rgba(42, 58, 82, 0.15);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-social {
            display: flex;
            gap: 16px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(42, 58, 82, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 1rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #1a2332;
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero h1 {
                font-size: 3rem;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .bottom-tab-bar {
                display: flex;
            }
            .site-header {
                background: rgba(15, 21, 32, 0.98);
            }
            .hero {
                padding: 120px 0 80px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
                margin-top: 36px;
                padding-top: 28px;
            }
            .hero-stat h3 {
                font-size: 1.5rem;
            }
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-card {
                padding: 32px 24px;
            }
            .news-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-card {
                padding: 20px 24px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 32px 0 100px 0;
            }
            .container {
                padding: 0 16px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                justify-content: center;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-actions .btn {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .faq-question {
                padding: 16px 20px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 20px 16px;
                font-size: 0.85rem;
            }
            .feature-card {
                padding: 28px 20px;
            }
        }

        /* ===== 辅助 ===== */
        .focus-visible:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        ::selection {
            background: rgba(212, 168, 83, 0.2);
            color: var(--text-primary);
        }

        /* 滚动条 */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-body);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

/* roulang page: article */
:root {
            --primary: #7c3aed;
            --primary-light: #a78bfa;
            --primary-dark: #5b21b6;
            --secondary: #f59e0b;
            --accent: #ec4899;
            --bg-body: #0f0a1a;
            --bg-card: #1a122e;
            --bg-card-hover: #22183a;
            --bg-surface: #120c20;
            --text-primary: #f1e8ff;
            --text-secondary: #c4b5e3;
            --text-muted: #8b7aaa;
            --border-color: #2d1f4a;
            --border-light: #3d2a5e;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            transition: var(--transition);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 10, 26, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(15, 10, 26, 0.95);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: var(--text-primary);
        }

        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
        }

        .logo span:not(.logo-icon) {
            color: var(--primary-light);
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-desktop a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .nav-desktop a:hover {
            color: var(--text-primary);
            background: rgba(124, 58, 237, 0.1);
        }

        .nav-desktop a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
        }

        .nav-desktop a.active::after {
            display: none;
        }

        .btn-nav-cta {
            padding: 10px 24px !important;
            border-radius: var(--radius-sm) !important;
            background: linear-gradient(135deg, var(--secondary), #f97316) !important;
            color: #1a1a2e !important;
            font-weight: 700 !important;
            font-size: 0.95rem !important;
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.45) !important;
            background: linear-gradient(135deg, #fbbf24, #f97316) !important;
        }

        .btn-nav-cta:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        /* Mobile bottom nav */
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(15, 10, 26, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-color);
            padding: 8px 0;
            padding-bottom: max(8px, env(safe-area-inset-bottom));
        }

        .mobile-bottom-nav .mobile-nav-inner {
            display: flex;
            justify-content: space-around;
            align-items: center;
        }

        .mobile-bottom-nav .mobile-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-size: 0.65rem;
            font-weight: 500;
            transition: var(--transition);
            min-width: 56px;
        }

        .mobile-bottom-nav .mobile-nav-item i {
            font-size: 1.3rem;
            transition: var(--transition);
        }

        .mobile-bottom-nav .mobile-nav-item:hover,
        .mobile-bottom-nav .mobile-nav-item.active {
            color: var(--primary-light);
        }

        .mobile-bottom-nav .mobile-nav-item.active i {
            color: var(--primary-light);
            text-shadow: 0 0 20px rgba(124, 58, 237, 0.3);
        }

        .mobile-bottom-nav .mobile-nav-item.active {
            background: rgba(124, 58, 237, 0.1);
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .mobile-bottom-nav {
                display: block;
            }
            .site-header .header-inner {
                height: 64px;
            }
            .logo {
                font-size: 1.25rem;
            }
            .logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1.1rem;
            }
            body {
                padding-bottom: 72px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 4px;
            }
            .logo {
                font-size: 1.1rem;
                gap: 6px;
            }
            .logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
            }
            .mobile-bottom-nav .mobile-nav-item {
                min-width: 48px;
                padding: 4px 8px;
                font-size: 0.6rem;
            }
            .mobile-bottom-nav .mobile-nav-item i {
                font-size: 1.15rem;
            }
        }

        /* ===== Main Article ===== */
        .article-main {
            padding-top: 120px;
            padding-bottom: 80px;
            min-height: 80vh;
        }

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

        @media (max-width: 768px) {
            .article-main {
                padding-top: 90px;
                padding-bottom: 60px;
            }
            .article-container {
                padding: 0 16px;
            }
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .article-breadcrumb a {
            color: var(--text-muted);
            transition: var(--transition);
        }

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

        .article-breadcrumb .separator {
            color: var(--border-light);
            font-size: 0.7rem;
        }

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

        .article-header {
            margin-bottom: 40px;
        }

        .article-category-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(236, 72, 153, 0.15));
            color: var(--primary-light);
            border: 1px solid rgba(124, 58, 237, 0.25);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .article-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        @media (max-width: 768px) {
            .article-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 520px) {
            .article-title {
                font-size: 1.35rem;
            }
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-muted);
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-item i {
            font-size: 0.85rem;
            color: var(--primary-light);
        }

        .article-featured-image {
            margin: 32px 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background: var(--bg-card);
            aspect-ratio: 16/9;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .article-featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-featured-image .placeholder-img {
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--bg-card), var(--bg-card-hover));
            color: var(--text-muted);
            font-size: 3rem;
            gap: 12px;
        }

        .article-featured-image .placeholder-img i {
            font-size: 4rem;
            color: var(--primary-light);
            opacity: 0.5;
        }

        .article-featured-image .placeholder-img span {
            font-size: 0.9rem;
            color: var(--text-muted);
            opacity: 0.6;
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-secondary);
        }

        .article-content h2,
        .article-content h3,
        .article-content h4 {
            color: var(--text-primary);
            margin-top: 36px;
            margin-bottom: 16px;
            font-weight: 700;
            letter-spacing: -0.3px;
        }

        .article-content h2 {
            font-size: 1.7rem;
        }

        .article-content h3 {
            font-size: 1.35rem;
        }

        .article-content p {
            margin-bottom: 20px;
        }

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

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

        .article-content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-color: rgba(124, 58, 237, 0.3);
        }

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

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(124, 58, 237, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-content code {
            background: rgba(124, 58, 237, 0.12);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--primary-light);
        }

        .article-content pre {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            overflow-x: auto;
            margin: 24px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 28px 0;
            box-shadow: var(--shadow-card);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .article-content th,
        .article-content td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }

        .article-content th {
            background: rgba(124, 58, 237, 0.1);
            color: var(--text-primary);
            font-weight: 600;
        }

        .article-content td {
            color: var(--text-secondary);
        }

        .article-content tr:last-child td {
            border-bottom: none;
        }

        .article-footer-meta {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .article-tags .tag {
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary-light);
            border: 1px solid rgba(124, 58, 237, 0.15);
            transition: var(--transition);
            cursor: default;
        }

        .article-tags .tag:hover {
            background: rgba(124, 58, 237, 0.2);
            border-color: rgba(124, 58, 237, 0.3);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .article-share span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .article-share .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-card);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            font-size: 1rem;
            cursor: pointer;
        }

        .article-share .share-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
        }

        .article-nav-links {
            margin-top: 40px;
            display: flex;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .article-nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            max-width: 48%;
        }

        .article-nav-links a:hover {
            background: var(--bg-card-hover);
            border-color: var(--primary);
            color: var(--text-primary);
            transform: translateY(-2px);
        }

        @media (max-width: 520px) {
            .article-nav-links a {
                max-width: 100%;
                width: 100%;
                justify-content: center;
            }
            .article-nav-links {
                flex-direction: column;
            }
        }

        /* ===== Related / CTA ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-surface);
            border-top: 1px solid var(--border-color);
        }

        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 32px;
            text-align: center;
            letter-spacing: -0.3px;
        }

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

        @media (max-width: 900px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
        }

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

        .related-card .card-category {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary-light);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .related-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .related-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .related-card .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .not-found-container {
            text-align: center;
            padding: 80px 20px;
        }

        .not-found-container .not-found-icon {
            font-size: 5rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            opacity: 0.5;
        }

        .not-found-container h1 {
            font-size: 2rem;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .not-found-container p {
            color: var(--text-muted);
            margin-bottom: 32px;
            font-size: 1.1rem;
        }

        .not-found-container .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
        }

        .not-found-container .btn-back:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(124, 58, 237, 0.4);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }

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

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        .footer-brand .logo {
            margin-bottom: 16px;
            font-size: 1.3rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .footer-col ul li a:hover {
            color: var(--primary-light);
            transform: translateX(4px);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

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

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-card);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            font-size: 1rem;
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
        }

        @media (max-width: 520px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 40px 0 24px;
                padding-bottom: calc(24px + 72px);
            }
        }

        /* ===== Focus visible ===== */
        *:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-body);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 10px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-in {
            animation: fadeInUp 0.6s ease forwards;
        }

        .animate-fade-in-delay {
            animation: fadeInUp 0.6s ease 0.2s forwards;
            opacity: 0;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #7c3aed;
            --primary-dark: #5b21b6;
            --primary-light: #a78bfa;
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #ec4899;
            --bg-base: #0f0a1e;
            --bg-card: #1a1230;
            --bg-card-hover: #22183d;
            --bg-elevated: #2a1d4a;
            --text-primary: #f1f0f7;
            --text-secondary: #b8b0d4;
            --text-muted: #7a72a0;
            --border-color: #2e2252;
            --border-hover: #4a3a7a;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-hover: 0 14px 48px rgba(124, 58, 237, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: transparent;
            color: inherit;
            transition: var(--transition);
        }
        ul,
        ol {
            list-style: none;
        }
        :focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-base);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--border-hover);
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(15, 10, 30, 0.82);
            backdrop-filter: blur(18px) saturate(1.4);
            -webkit-backdrop-filter: blur(18px) saturate(1.4);
            border-bottom: 1px solid rgba(46, 34, 82, 0.5);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(15, 10, 30, 0.96);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            transition: var(--transition);
        }
        .logo:hover {
            color: var(--primary-light);
            transform: scale(1.02);
        }
        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
        }
        .logo span {
            color: var(--primary-light);
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-desktop a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-desktop a:hover {
            color: var(--text-primary);
            background: rgba(124, 58, 237, 0.12);
        }
        .nav-desktop a.active {
            color: #fff;
            background: rgba(124, 58, 237, 0.2);
        }
        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--primary-light);
            border-radius: 4px;
        }
        .btn-nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: #fff !important;
            padding: 10px 26px !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 18px rgba(124, 58, 237, 0.35);
            margin-left: 8px;
        }
        .btn-nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(124, 58, 237, 0.5) !important;
            background: linear-gradient(135deg, var(--primary-light), var(--primary)) !important;
        }

        /* ===== 移动端底部 Tab ===== */
        .bottom-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 999;
            background: rgba(15, 10, 30, 0.94);
            backdrop-filter: blur(18px) saturate(1.4);
            -webkit-backdrop-filter: blur(18px) saturate(1.4);
            border-top: 1px solid rgba(46, 34, 82, 0.6);
            padding: 4px 0 env(safe-area-inset-bottom, 4px);
            box-shadow: 0 -4px 30px rgba(0, 0, 0, 0.5);
        }
        .bottom-tab-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            max-width: 600px;
            margin: 0 auto;
        }
        .bottom-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            padding: 6px 10px 4px;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-size: 0.6rem;
            font-weight: 500;
            transition: var(--transition);
            min-width: 56px;
        }
        .bottom-tab-item i {
            font-size: 1.25rem;
            transition: var(--transition);
        }
        .bottom-tab-item:hover {
            color: var(--text-secondary);
        }
        .bottom-tab-item.active {
            color: var(--primary-light);
        }
        .bottom-tab-item.active i {
            transform: scale(1.1);
            text-shadow: 0 0 20px rgba(124, 58, 237, 0.4);
        }
        .bottom-tab-item .tab-label {
            font-size: 0.6rem;
            line-height: 1.2;
            letter-spacing: 0.3px;
        }

        /* ===== 移动端断点 ===== */
        @media (max-width: 768px) {
            .nav-desktop {
                display: none !important;
            }
            .bottom-tab-bar {
                display: block !important;
            }
            .site-header .header-inner {
                height: 60px;
            }
            body {
                padding-bottom: 68px;
            }
            .logo {
                font-size: 1.25rem;
            }
            .logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
        }
        @media (min-width: 769px) {
            .bottom-tab-bar {
                display: none !important;
            }
            body {
                padding-bottom: 0;
            }
        }

        /* ===== 页面主体 ===== */
        .page-main {
            padding-top: 88px;
            padding-bottom: 60px;
        }
        @media (max-width: 768px) {
            .page-main {
                padding-top: 76px;
                padding-bottom: 32px;
            }
        }

        /* ===== Hero 内页 ===== */
        .hero-inner {
            background: linear-gradient(145deg, rgba(124, 58, 237, 0.10) 0%, rgba(236, 72, 153, 0.06) 100%);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            margin-bottom: 48px;
            border: 1px solid rgba(46, 34, 82, 0.4);
            position: relative;
            overflow: hidden;
        }
        .hero-inner::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-inner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .hero-inner .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .hero-inner .breadcrumb .sep {
            color: var(--border-color);
        }
        .hero-inner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.25;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff 40%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-inner p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .hero-inner {
                padding: 32px 20px;
                margin-bottom: 32px;
            }
            .hero-inner h1 {
                font-size: 1.6rem;
            }
            .hero-inner p {
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .hero-inner {
                padding: 24px 16px;
            }
            .hero-inner h1 {
                font-size: 1.35rem;
            }
        }

        /* ===== 板块通用 ===== */
        .section-block {
            margin-bottom: 56px;
        }
        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-bottom: 28px;
            max-width: 600px;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.3rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
                margin-bottom: 20px;
            }
            .section-block {
                margin-bottom: 40px;
            }
        }

        /* ===== 卡片 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .card:hover {
            transform: translateY(-6px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            background: var(--bg-card-hover);
        }
        .card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(236, 72, 153, 0.15));
            color: var(--primary-light);
        }
        .card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.65;
        }
        .card .card-tag {
            display: inline-block;
            margin-top: 14px;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(124, 58, 237, 0.15);
            color: var(--primary-light);
            border: 1px solid rgba(124, 58, 237, 0.2);
        }
        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card {
                padding: 20px 18px;
            }
        }

        /* ===== 步骤列表 ===== */
        .step-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: var(--transition);
        }
        .step-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }
        .step-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.15rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
        }
        .step-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-content p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .step-item {
                padding: 18px 16px;
                gap: 14px;
            }
            .step-num {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .step-content h4 {
                font-size: 0.95rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }
        .faq-item .faq-q {
            font-weight: 600;
            font-size: 0.98rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .faq-item .faq-q i {
            color: var(--primary-light);
            font-size: 0.85rem;
        }
        .faq-item .faq-a {
            margin-top: 10px;
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.6;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item.open .faq-q i {
            transform: rotate(90deg);
        }
        @media (max-width: 768px) {
            .faq-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(145deg, rgba(124, 58, 237, 0.12), rgba(236, 72, 153, 0.08));
            border: 1px solid rgba(124, 58, 237, 0.25);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-block h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .cta-block p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .btn-cta {
            display: inline-block;
            padding: 14px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 6px 28px rgba(124, 58, 237, 0.4);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 40px rgba(124, 58, 237, 0.55);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }
        .btn-cta-outline {
            display: inline-block;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid var(--primary-light);
            color: var(--primary-light);
            background: transparent;
            transition: var(--transition);
            cursor: pointer;
            margin-left: 12px;
        }
        .btn-cta-outline:hover {
            background: rgba(124, 58, 237, 0.15);
            color: #fff;
            border-color: #fff;
        }
        @media (max-width: 768px) {
            .cta-block {
                padding: 32px 20px;
            }
            .cta-block h2 {
                font-size: 1.3rem;
            }
            .cta-block p {
                font-size: 0.9rem;
            }
            .btn-cta {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .btn-cta-outline {
                padding: 10px 22px;
                font-size: 0.85rem;
                margin-left: 0;
                margin-top: 12px;
            }
            .cta-btns {
                display: flex;
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
        }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(124, 58, 237, 0.15);
            color: var(--primary-light);
            border: 1px solid rgba(124, 58, 237, 0.2);
        }
        .badge-success {
            background: rgba(16, 185, 129, 0.15);
            color: #6ee7b7;
            border-color: rgba(16, 185, 129, 0.25);
        }
        .badge-warning {
            background: rgba(245, 158, 11, 0.15);
            color: #fcd34d;
            border-color: rgba(245, 158, 11, 0.25);
        }

        /* ===== 统计数字 ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 20px;
            margin-top: 16px;
        }
        .stat-item {
            text-align: center;
            padding: 20px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: var(--border-hover);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-label {
            color: var(--text-secondary);
            font-size: 0.85rem;
            margin-top: 4px;
        }
        @media (max-width: 520px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
        }

        /* ===== 分隔线 ===== */
        .divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-color), transparent);
            margin: 40px 0;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: rgba(12, 8, 24, 0.9);
            border-top: 1px solid rgba(46, 34, 82, 0.4);
            padding: 56px 0 32px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            border-top: 1px solid rgba(46, 34, 82, 0.3);
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(124, 58, 237, 0.1);
            border: 1px solid rgba(46, 34, 82, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(124, 58, 237, 0.3);
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
            .site-footer {
                padding: 36px 0 24px;
            }
        }

        /* ===== 工具类 ===== */
        .text-gradient {
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .mt-8 {
            margin-top: 32px;
        }
        .mb-8 {
            margin-bottom: 32px;
        }
        .text-center {
            text-align: center;
        }
        .gap-4 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== 内容文章卡片 ===== */
        .article-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: var(--transition);
            align-items: flex-start;
        }
        .article-card:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }
        .article-card .art-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            background: rgba(124, 58, 237, 0.15);
            color: var(--primary-light);
        }
        .article-card .art-body h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .article-card .art-body p {
            color: var(--text-secondary);
            font-size: 0.85rem;
            line-height: 1.5;
        }
        .article-card .art-body .art-meta {
            display: flex;
            gap: 12px;
            margin-top: 8px;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        @media (max-width: 520px) {
            .article-card {
                flex-direction: column;
                padding: 16px;
            }
            .article-card .art-icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
        }

        /* ===== 高亮框 ===== */
        .highlight-box {
            background: linear-gradient(145deg, rgba(124, 58, 237, 0.08), rgba(236, 72, 153, 0.05));
            border: 1px solid rgba(124, 58, 237, 0.2);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            margin-top: 20px;
        }
        .highlight-box h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .highlight-box h4 i {
            color: var(--primary-light);
        }
        .highlight-box p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.65;
        }
        @media (max-width: 520px) {
            .highlight-box {
                padding: 20px 16px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #4f46e5;
            --primary-dark: #4338ca;
            --primary-light: #818cf8;
            --primary-bg: #eef2ff;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border-color: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-card: 0 4px 20px rgba(79, 70, 229, 0.08);
            --shadow-hover: 0 12px 40px rgba(79, 70, 229, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'Inter', 'system-ui', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--primary);
            transition: var(--transition);
        }
        .logo:hover {
            opacity: 0.85;
        }
        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
        }
        .logo span {
            color: var(--accent);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-desktop a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
        }
        .nav-desktop a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-desktop a.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .btn-nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: #fff !important;
            padding: 10px 24px !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 16px rgba(79, 70, 229, 0.25);
            transition: var(--transition);
        }
        .btn-nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(79, 70, 229, 0.35) !important;
            background: linear-gradient(135deg, var(--primary-dark), #3730a3) !important;
        }
        .nav-mobile-bottom {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 200;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-color);
            padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
            box-shadow: 0 -4px 30px rgba(0, 0, 0, 0.06);
        }
        .nav-mobile-bottom .nav-items {
            display: flex;
            justify-content: space-around;
            align-items: center;
            max-width: 500px;
            margin: 0 auto;
        }
        .nav-mobile-bottom .nav-items a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px 4px;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            border-radius: var(--radius-sm);
            min-width: 60px;
        }
        .nav-mobile-bottom .nav-items a i {
            font-size: 1.3rem;
            color: var(--text-light);
            transition: var(--transition);
        }
        .nav-mobile-bottom .nav-items a.active {
            color: var(--primary);
        }
        .nav-mobile-bottom .nav-items a.active i {
            color: var(--primary);
        }
        .nav-mobile-bottom .nav-items a:hover {
            color: var(--primary);
        }
        .nav-mobile-bottom .nav-items a:hover i {
            color: var(--primary);
        }
        .nav-mobile-bottom .nav-items .mobile-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            padding: 6px 16px 4px;
            border-radius: 20px;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
        }
        .nav-mobile-bottom .nav-items .mobile-cta i {
            color: #fff !important;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-mobile-bottom {
                display: block;
            }
            .header-inner {
                height: 64px;
            }
            .logo {
                font-size: 1.35rem;
            }
            .logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .container {
                padding: 0 16px;
            }
            body {
                padding-bottom: 70px;
            }
        }
        @media (min-width: 769px) {
            .nav-mobile-bottom {
                display: none !important;
            }
        }
        .page-hero {
            padding: 60px 0 48px;
            background: linear-gradient(135deg, #eef2ff 0%, #faf5ff 100%);
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(79, 70, 229, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.06), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-light);
            font-size: 0.75rem;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.2;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .page-hero h1 .highlight {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.7;
        }
        .page-hero .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .page-hero .hero-stats .stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .page-hero .hero-stats .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
        }
        .page-hero .hero-stats .stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 40px 0 32px;
            }
            .page-hero h1 {
                font-size: 1.9rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .page-hero .hero-stats {
                gap: 20px;
            }
            .page-hero .hero-stats .stat-number {
                font-size: 1.4rem;
            }
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.7;
        }
        .section-header {
            margin-bottom: 40px;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }
        .category-filter {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 36px;
        }
        .category-filter .filter-btn {
            padding: 8px 22px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            transition: var(--transition);
            cursor: pointer;
        }
        .category-filter .filter-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }
        .category-filter .filter-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(79, 70, 229, 0.25);
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 24px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid rgba(226, 232, 240, 0.4);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(79, 70, 229, 0.15);
        }
        .card .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
            background: var(--primary-bg);
        }
        .card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 12px;
        }
        .card .card-tag {
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--primary-bg);
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .card .card-tag.accent {
            background: #fef3c7;
            color: #b45309;
        }
        .card .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 8px;
            transition: var(--transition);
        }
        .card:hover .card-title {
            color: var(--primary);
        }
        .card .card-desc {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-light);
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .card .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .card .card-meta .meta-left i {
            font-size: 0.75rem;
        }
        .card .card-meta .read-more {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .card .card-meta .read-more:hover {
            gap: 8px;
            color: var(--primary-dark);
        }
        @media (max-width: 640px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .card .card-body {
                padding: 18px;
            }
        }
        .featured-section {
            padding: 64px 0;
            background: var(--bg-card);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 32px;
            align-items: center;
        }
        .featured-content .featured-label {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary-bg);
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .featured-content h2 {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .featured-content p {
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 24px;
            font-size: 1.05rem;
        }
        .featured-content .featured-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .featured-content .featured-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.95rem;
            color: var(--text-main);
        }
        .featured-content .featured-list li i {
            color: var(--primary);
            font-size: 1.1rem;
            margin-top: 2px;
            flex-shrink: 0;
        }
        .featured-visual {
            background: linear-gradient(135deg, var(--primary-bg), #faf5ff);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
            border: 1px solid rgba(79, 70, 229, 0.08);
        }
        .featured-visual .big-icon {
            font-size: 4rem;
            color: var(--primary);
            margin-bottom: 16px;
            opacity: 0.6;
        }
        .featured-visual h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .featured-visual p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .featured-visual .badge-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 20px;
        }
        .featured-visual .badge-group .badge {
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-muted);
        }
        .featured-visual .badge-group .badge.highlight {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        @media (max-width: 768px) {
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .featured-content h2 {
                font-size: 1.5rem;
            }
            .featured-visual {
                padding: 28px 20px;
            }
            .featured-section {
                padding: 40px 0;
            }
        }
        .tips-section {
            padding: 64px 0;
            background: var(--bg-body);
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }
        .tip-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
        }
        .tip-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(79, 70, 229, 0.12);
        }
        .tip-card .tip-icon {
            font-size: 2.4rem;
            color: var(--primary);
            margin-bottom: 16px;
            display: inline-block;
            background: var(--primary-bg);
            width: 64px;
            height: 64px;
            line-height: 64px;
            border-radius: 20px;
            text-align: center;
        }
        .tip-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .tip-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        @media (max-width: 640px) {
            .tips-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .tip-card {
                padding: 20px 16px;
            }
            .tip-card .tip-icon {
                width: 52px;
                height: 52px;
                line-height: 52px;
                font-size: 1.8rem;
            }
        }
        @media (max-width: 400px) {
            .tips-grid {
                grid-template-columns: 1fr;
            }
        }
        .faq-section {
            padding: 64px 0;
            background: var(--bg-card);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(79, 70, 229, 0.15);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            text-align: left;
            cursor: pointer;
            transition: var(--transition);
            gap: 12px;
        }
        .faq-question:hover {
            background: var(--primary-bg);
        }
        .faq-question i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            background: #fafbfc;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        @media (max-width: 768px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 0.88rem;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 16px;
            }
        }
        .cta-section {
            padding: 64px 0;
            background: linear-gradient(135deg, var(--primary) 0%, #3730a3 100%);
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-section .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            background: #fff;
            color: var(--primary);
            font-size: 1.05rem;
            font-weight: 700;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
        }
        .cta-section .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 48px rgba(0, 0, 0, 0.25);
            background: #f8fafc;
        }
        .cta-section .btn-cta-primary i {
            font-size: 1.1rem;
        }
        .cta-section .cta-sub {
            margin-top: 20px;
            font-size: 0.9rem;
            opacity: 0.7;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 0;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 0.95rem;
                margin-bottom: 24px;
            }
            .cta-section .btn-cta-primary {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
        }
        .site-footer {
            background: #1e293b;
            color: #cbd5e1;
            padding: 56px 0 24px;
        }
        .site-footer .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .site-footer .logo .logo-icon {
            background: linear-gradient(135deg, #818cf8, #6366f1);
        }
        .site-footer .logo span {
            color: #fbbf24;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #94a3b8;
            margin-top: 8px;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: #94a3b8;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid #334155;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: #64748b;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #334155;
            color: #94a3b8;
            transition: var(--transition);
            font-size: 1rem;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .focus-visible:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 6px;
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
        }