.container5 {
            max-width: 1400px;
            margin: 0 auto;
        }
        
        header {
            text-align: center;
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 3px solid #0066cc;
        }
        
        h1 {
            font-size: 2.5rem;
            color: #0066cc;
            margin-bottom: 10px;
        }
        
        .site-description {
            font-size: 1.1rem;
            color: #666;
        }
        
        /* 类别导航样式 */
        .category-nav {
            background: white;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            margin-bottom: 30px;
        }
        
        .nav-title {
            font-size: 1.2rem;
            font-weight: bold;
            margin-bottom: 15px;
            color: #333;
        }
        
        .category-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            list-style: none;
        }
        
        .category-item {
            flex: 1 0 auto;
        }
        
        .category-btn, .category-link {
            display: block;
            padding: 10px 20px;
            background: #f5f5f5;
            border: none;
            border-radius: 5px;
            font-size: 1rem;
            color: #333;
            text-decoration: none;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .category-btn:hover, .category-link:hover,
        .category-btn.active, .category-link.active {
            background: #0066cc;
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,102,204,0.2);
        }
        
        /* 新闻列表样式 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(346px, 1fr));
            gap: 10px;
            margin-bottom: 40px;
        }
        
        .news-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 3px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 20px rgba(0,0,0,0.15);
        }
        
        .card-header {
            padding: 20px 20px 10px;
        }
        
        .news-category {
            display: inline-block;
            padding: 5px 12px;
            background: #e6f2ff;
            color: #0066cc;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: bold;
            margin-bottom: 10px;
        }
        
        .card-body {
            padding: 20px 20px 0px;
        }
        
        .news-title {
            font-size: 1.3rem;
            font-weight: bold;
            color: #333;
            margin-bottom: 10px;
            line-height: 1.4;
			height: 60px;
        }
        
        .news-title a {
            color: #333;
            text-decoration: none;
        }
        
        .news-title a:hover {
            color: #0066cc;
        }
        
        .news-excerpt {
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 15px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
			height: 80px;
        }
        
        .card-footer {
            padding: 10px 10px;
            background: #f8f9fa;
            border-top: 1px solid #eee;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .news-date {
            font-size: 0.9rem;
            color: #888;
        }
        
        .news-author {
            font-size: 0.9rem;
            color: #666;
        }
        
        .read-more {
            color: #0066cc;
            text-decoration: none;
            font-weight: bold;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        
        .read-more:hover {
            text-decoration: underline;
        }
        
        /* 置顶新闻样式 */
        .top-news {
            grid-column: 1 / -1;
            position: relative;
        }
        
        .top-news::before {
            content: "置顶";
            position: absolute;
            top: 15px;
            right: 15px;
            background: #ff9900;
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: bold;
            z-index: 1;
        }
        
        /* 无新闻提示样式 */
        .no-news {
            grid-column: 1 / -1;
            text-align: center;
            padding: 50px 20px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 3px 15px rgba(0,0,0,0.1);
        }
        
        .no-news i {
            font-size: 3rem;
            color: #ddd;
            margin-bottom: 20px;
        }
        
        .no-news p {
            color: #888;
            font-size: 1.1rem;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .container {
                padding: 15px;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            .category-list {
                flex-direction: column;
            }
            
            .news-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .category-btn, .category-link {
                text-align: center;
            }
        }
        
        /* 类别颜色定义 - 为不同的类别设置不同颜色 */
        .category-1 { background: #e6f2ff; color: #0066cc; }
        .category-2 { background: #fff0e6; color: #ff6600; }
        .category-3 { background: #e6ffe6; color: #009933; }
        .category-4 { background: #f0e6ff; color: #9933cc; }
        .category-5 { background: #fff5e6; color: #cc6600; }
        
        .btn-category-1:hover, .btn-category-1.active { background: #0066cc; }
        .btn-category-2:hover, .btn-category-2.active { background: #ff6600; }
        .btn-category-3:hover, .btn-category-3.active { background: #009933; }
        .btn-category-4:hover, .btn-category-4.active { background: #9933cc; }
        .btn-category-5:hover, .btn-category-5.active { background: #cc6600; }
        
        .link-category-1:hover, .link-category-1.active { background: #0066cc; }
        .link-category-2:hover, .link-category-2.active { background: #ff6600; }
        .link-category-3:hover, .link-category-3.active { background: #009933; }
        .link-category-4:hover, .link-category-4.active { background: #9933cc; }
        .link-category-5:hover, .link-category-5.active { background: #cc6600; }
        
        /* 分页样式 */
        .pagination {
            text-align: center;
            margin: 30px 0;
        }
        
        .pagination a, .pagination span {
            display: inline-block;
            padding: 8px 16px;
            margin: 0 5px;
            text-decoration: none;
            color: #333;
            border: 1px solid #ddd;
            border-radius: 4px;
        }
        
        .pagination a:hover {
            background: #0066cc;
            color: white;
            border-color: #0066cc;
        }
        
        .pagination .current {
            background: #0066cc;
            color: white;
            border-color: #0066cc;
        }
       .floating-btn i{font-size:12px;}