* { box-sizing: border-box; }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            background: #f5f5f5;
            margin: 0;
            padding: 16px;
            color: #333;
        }
        .container {
            max-width: 700px;
            margin: 0 auto;
        }
        /* 返回首页链接 */
        .back-home {
            display: inline-block;
            margin-bottom: 16px;
            color: #007aff;
            text-decoration: none;
            font-size: 16px;
            padding: 8px 16px;
            background: white;
            border-radius: 40px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.03);
        }
        .back-home:hover {
            background: #f0f0f0;
        }
        /* 卡片样式 */
        .card {
            background: white;
            border-radius: 32px;
            padding: 24px;
            margin-bottom: 20px;
            box-shadow: 0 4px 16px rgba(0,0,0,0.05);
        }
        h1 {
            font-size: 28px;
            font-weight: 600;
            margin: 0 0 8px 0;
            color: #1a1a1a;
            text-align: center;
        }
        h2 {
            font-size: 20px;
            font-weight: 600;
            margin: 24px 0 12px 0;
            color: #007aff;
            border-left: 4px solid #007aff;
            padding-left: 12px;
        }
        h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 16px 0 8px 0;
            color: #333;
        }
        p {
            line-height: 1.6;
            margin: 0 0 12px 0;
            color: #444;
        }
        ul, ol {
            padding-left: 24px;
            margin: 8px 0 16px 0;
        }
        li {
            margin-bottom: 6px;
            line-height: 1.5;
        }
        strong {
            color: #007aff;
        }
        .badge {
            display: inline-block;
            background: #28a745;
            color: white;
            font-size: 12px;
            font-weight: 500;
            padding: 2px 10px;
            border-radius: 30px;
            margin-right: 6px;
        }
        .note {
            background: #f8f8f8;
            border-radius: 20px;
            padding: 14px 18px;
            margin: 20px 0 10px;
            border-left: 4px solid #ffc107;
            font-size: 14px;
            color: #666;
        }
        .link-table {
            width: 100%;
            border-collapse: collapse;
            margin: 16px 0;
        }
        .link-table td {
            padding: 10px;
            border-bottom: 1px solid #eee;
        }
        .link-table a {
            color: #007aff;
            text-decoration: none;
            font-weight: 500;
            word-break: break-all;
        }
        .link-table a:hover {
            text-decoration: underline;
        }
        hr {
            border: none;
            border-top: 1px dashed #ddd;
            margin: 24px 0;
        }
        .footer-note {
            text-align: center;
            color: #888;
            font-size: 14px;
            margin-top: 30px;
        }