/* 添加一些基本样式 */
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            margin: 0;
            padding: 20px;
            background-color: #f5f5f5;
            color: #333;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        header {
            text-align: center;
            margin-bottom: 30px;
        }
        
        h1 {
            color: #2c3e50;
            margin-bottom: 10px;
        }
        
        .description {
            color: #7f8c8d;
            font-size: 16px;
        }
        
        .controls {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            flex-wrap: wrap;
            gap: 15px;
        }
        
        .search-box {
            display: flex;
            align-items: center;
            background: #f8f9fa;
            border-radius: 4px;
            padding: 8px 15px;
            border: 1px solid #ddd;
        }
        
        .search-box i {
            margin-right: 10px;
            color: #6c757d;
        }
        
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            width: 250px;
        }
        
        .filters {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        select, button {
            padding: 8px 15px;
            border-radius: 4px;
            border: 1px solid #ddd;
            background: white;
            cursor: pointer;
        }
        
        button {
            display: flex;
            align-items: center;
            gap: 5px;
            transition: all 0.2s;
        }
        
        button:hover {
            background: #f8f9fa;
        }
        
        .export-btn {
            color: #28a745;
            border-color: #28a745;
        }
        
        .refresh-btn {
            color: #17a2b8;
            border-color: #17a2b8;
        }
        
        .stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
            margin-bottom: 30px;
        }
        
        .stat-item {
            background: #f8f9fa;
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            border-left: 4px solid #2c3e50;
        }
        
        .stat-value {
            font-size: 24px;
            font-weight: bold;
            color: #2c3e50;
        }
        
        .stat-label {
            color: #6c757d;
            font-size: 14px;
        }
        
        .data-container {
            margin-bottom: 30px;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 20px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }
        
        th, td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        
        th {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            font-weight: 600;
            text-transform: uppercase;
            font-size: 14px;
        }
        
        tr:nth-child(even) {
            background-color: #f8f9fa;
        }
        
        tr:hover {
            background-color: #e3f2fd;
            transition: background-color 0.2s ease;
        }
        
        .empty-state {
            text-align: center;
            padding: 40px;
            color: #6c757d;
        }
        
        .empty-state i {
            font-size: 48px;
            margin-bottom: 15px;
            color: #adb5bd;
        }
        
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 15px;
        }
        
        .pagination button {
            padding: 8px 20px;
        }
        
        .info-section {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 8px;
            margin-top: 30px;
        }
        
        .info-section h3 {
            margin-top: 0;
            color: #2c3e50;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        code {
            background: #e9ecef;
            padding: 2px 5px;
            border-radius: 3px;
            font-family: monospace;
        }
        
        a {
            color: #3498db;
            text-decoration: none;
        }
        
        a:hover {
            text-decoration: underline;
        }
        
        @media (max-width: 768px) {
            .controls {
                flex-direction: column;
                align-items: stretch;
            }
            
            .search-box {
                width: 100%;
            }
            
            .search-box input {
                width: 100%;
            }
            
            .filters {
                width: 100%;
                justify-content: space-between;
            }
            
            .stats {
                grid-template-columns: 1fr 1fr;
            }
        }