:root {
            --primary: #1e40af;
            --primary-light: #3b82f6;
            --secondary: #7c3aed;
            --accent: #f59e0b;
            --bg: #f0f4ff;
            --card: #ffffff;
            --text: #1e293b;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius: 14px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--secondary);
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1e40af, #7c3aed);
            padding: 18px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -1px;
            display: flex;
            align-items: center;
            gap: 10px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }
        .my-logo i {
            font-size: 2rem;
            color: var(--accent);
        }
        .my-logo span {
            background: linear-gradient(90deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.9);
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.92rem;
            transition: all 0.2s;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb-wrap {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
            font-size: 0.85rem;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb i {
            color: var(--text-light);
            font-size: 0.7rem;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            padding: 40px 0;
        }
        .article-card {
            background: var(--card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px;
            border: 1px solid var(--border);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        h1 {
            font-size: 2.3rem;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
            font-weight: 800;
        }
        h2 {
            font-size: 1.7rem;
            margin-top: 36px;
            margin-bottom: 14px;
            color: var(--primary);
            font-weight: 700;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--bg);
        }
        h3 {
            font-size: 1.2rem;
            margin-top: 24px;
            margin-bottom: 10px;
            color: var(--text);
            font-weight: 600;
        }
        h4 {
            font-size: 1rem;
            margin-top: 18px;
            margin-bottom: 8px;
            color: var(--primary-light);
            font-weight: 600;
        }
        p {
            margin-bottom: 16px;
            color: var(--text);
        }
        .lead {
            font-size: 1.15rem;
            color: var(--text-light);
            line-height: 1.9;
        }
        strong {
            font-weight: 700;
            color: var(--text);
        }
        em {
            font-style: italic;
        }
        .hero-figure {
            margin: 28px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .hero-figure img {
            width: 100%;
            height: auto;
            display: block;
        }
        .hero-figure figcaption {
            padding: 10px 16px;
            background: var(--bg);
            font-size: 0.85rem;
            color: var(--text-light);
            text-align: center;
        }
        .highlight-box {
            background: linear-gradient(135deg, #eff6ff, #f5f3ff);
            border-left: 4px solid var(--primary);
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .highlight-box i {
            color: var(--primary);
            margin-right: 8px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-card {
            background: var(--bg);
            border-radius: 12px;
            padding: 24px 16px;
            text-align: center;
            border: 1px solid var(--border);
        }
        .stat-card .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 4px;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
        }
        .data-table th,
        .data-table td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }
        .data-table th {
            background: var(--bg);
            font-weight: 700;
            color: var(--text);
        }
        .data-table tr:hover td {
            background: #f8fafc;
        }
        .review-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
            margin: 24px 0;
        }
        .review-item {
            background: var(--bg);
            border-radius: 12px;
            padding: 20px;
            border: 1px solid var(--border);
        }
        .review-item .review-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
        }
        .review-item .review-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 0.85rem;
        }
        .review-item .review-stars {
            color: var(--accent);
            font-size: 0.85rem;
        }
        .review-item .review-meta {
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .form-section {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 24px;
            margin: 24px 0;
            border: 1px solid var(--border);
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            font-size: 0.9rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-family: inherit;
            font-size: 0.95rem;
            transition: border-color 0.2s;
            background: var(--card);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
        }
        .form-group textarea {
            min-height: 90px;
            resize: vertical;
        }
        .btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 64, 175, 0.3);
        }
        .search-box {
            display: flex;
            gap: 0;
            background: var(--card);
            border-radius: 30px;
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }
        .search-box input {
            flex: 1;
            border: none;
            padding: 12px 20px;
            font-family: inherit;
            font-size: 0.95rem;
        }
        .search-box input:focus {
            outline: none;
        }
        .search-box button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 20px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-box button:hover {
            background: var(--secondary);
        }
        .sidebar-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 2px solid var(--bg);
            padding-bottom: 10px;
            margin-bottom: 16px;
        }
        .rating-display {
            text-align: center;
            padding: 10px 0;
        }
        .rating-display .big-score {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .rating-display .stars {
            color: var(--accent);
            font-size: 1.2rem;
            margin: 8px 0;
        }
        .rating-display .count {
            font-size: 0.85rem;
            color: var(--text-light);
        }
        friend-link {
            display: block;
            padding: 20px 0;
            border-top: 1px solid var(--border);
            margin-top: 20px;
        }
        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            list-style: none;
        }
        .friend-links-list li a {
            background: var(--bg);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text);
            transition: all 0.2s;
            border: 1px solid transparent;
        }
        .friend-links-list li a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .site-footer {
            background: #1e293b;
            color: #94a3b8;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .site-footer .footer-text {
            text-align: center;
            font-size: 0.85rem;
        }
        .site-footer .copyright {
            text-align: center;
            padding-top: 12px;
            border-top: 1px solid #334155;
            margin-top: 16px;
            font-size: 0.8rem;
            color: #64748b;
        }
        .faq-item {
            background: var(--bg);
            border-radius: 10px;
            padding: 18px;
            margin-bottom: 14px;
            border-left: 4px solid var(--primary);
        }
        .faq-item h4 {
            margin-top: 0;
            color: var(--primary);
        }
        .blockquote {
            background: #f5f3ff;
            border-radius: 12px;
            padding: 24px;
            margin: 24px 0;
            border-left: 4px solid var(--secondary);
            font-style: italic;
            line-height: 1.8;
            color: #4c1d95;
        }
        @media (max-width: 992px) {
            .main-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .sidebar {
                order: 2;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: rgba(0, 0, 0, 0.2);
                border-radius: 12px;
                padding: 10px;
                margin-top: 8px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 16px;
                width: 100%;
                border-radius: 8px;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .article-card {
                padding: 20px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.05rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .data-table {
                font-size: 0.82rem;
            }
            .data-table th,
            .data-table td {
                padding: 8px 10px;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        ::selection {
            background: var(--accent);
            color: var(--text);
        }
        .text-center {
            text-align: center;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .emoji {
            font-style: normal;
        }