/* 知识库英雄区域 */
        .knowledge-hero {
            background: linear-gradient(rgba(26, 82, 118, 0.85), rgba(26, 82, 118, 0.9)), url('/jia/images/7.jpg');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 100px 0;
            text-align: center;
        }
        
        .knowledge-hero h2 {
            font-size: 2.8rem;
            margin-bottom: 20px;
        }
        
        .knowledge-hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto;
        }
        
        /* 知识库内容 */
        .knowledge-content {
            padding: 80px 0;
            background: white;
        }
        
        .knowledge-container {
            display: grid;
            grid-template-columns: 3fr 1fr;
            gap: 40px;
        }
        
        /* 分类筛选 */
        .category-filter {
            background: var(--light-color);
            padding: 25px;
            border-radius: 10px;
            margin-bottom: 30px;
        }
        
        .filter-title {
            color: var(--primary-color);
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        
        .category-list {
            list-style: none;
        }
        
        .category-item {
            margin-bottom: 15px;
        }
        
        .category-item a {
            color: var(--dark-color);
            display: flex;
            align-items: center;
            transition: var(--transition);
        }
        
        .category-item a:hover {
            color: var(--secondary-color);
        }
        
        .category-item a.active {
            color: var(--accent-color);
            font-weight: 500;
        }
        
        .category-item i {
            margin-right: 10px;
            width: 20px;
        }
        
        /* 文章列表 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .article-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .article-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .article-image {
            height: 200px;
            overflow: hidden;
        }
        
        .article-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .article-card:hover .article-image img {
            transform: scale(1.1);
        }
        
        .article-content {
            padding: 20px;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            margin-bottom: 10px;
            font-size: 0.9rem;
            color: #666;
        }
        
        .article-meta span {
            margin-right: 15px;
            display: flex;
            align-items: center;
        }
        
        .article-meta i {
            margin-right: 5px;
        }
        
        .article-content h3 {
            color: var(--primary-color);
            margin-bottom: 15px;
            font-size: 1.3rem;
            line-height: 1.4;
        }
        
        .article-content p {
            color: #666;
            margin-bottom: 20px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .read-more {
            color: var(--accent-color);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            transition: var(--transition);
        }
        
        .read-more:hover {
            color: #e67e22;
        }
        
        .read-more i {
            margin-left: 5px;
            transition: var(--transition);
        }
        
        .read-more:hover i {
            transform: translateX(5px);
        }
        
        /* 侧边栏 */
        .sidebar {
            background: var(--light-color);
            border-radius: 10px;
            padding: 25px;
        }
        
        .sidebar-widget {
            margin-bottom: 30px;
        }
        
        .sidebar-title {
            color: var(--primary-color);
            margin-bottom: 20px;
            font-size: 1.3rem;
            position: relative;
            padding-bottom: 10px;
        }
        
        .sidebar-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--accent-color);
        }
        
        .popular-articles {
            list-style: none;
        }
        
        .popular-item {
            display: flex;
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid #ddd;
        }
        
        .popular-item:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        
        .popular-image {
            width: 80px;
            height: 60px;
            border-radius: 5px;
            overflow: hidden;
            margin-right: 15px;
            flex-shrink: 0;
        }
        
        .popular-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .popular-content h4 {
            font-size: 0.95rem;
            margin-bottom: 5px;
            line-height: 1.4;
        }
        
        .popular-content h4 a {
            color: var(--dark-color);
            transition: var(--transition);
        }
        
        .popular-content h4 a:hover {
            color: var(--secondary-color);
        }
        
        .popular-date {
            font-size: 0.8rem;
            color: #666;
        }
        
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        
        .tag {
            background: white;
            color: var(--dark-color);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        
        .tag:hover {
            background: var(--secondary-color);
            color: white;
        }
        
        /* 分页 */
        .pagination {
            display: flex;
            justify-content: center;
            margin-top: 50px;
        }
        
        .page-num {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 5px;
            border-radius: 8px;
            background: var(--surface);
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        
        .page-num:hover, .page-num.active {
            background: linear-gradient(to right, var(--accent), var(--accent-light));
            color: white;
            box-shadow: var(--shadow-md);
        }
        
        .page-num i {
            font-size: 14px;
        }
        
        
    
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .knowledge-container {
                grid-template-columns: 1fr;
            }
            
            .knowledge-hero h2 {
                font-size: 2.2rem;
            }
        }
        
        @media (max-width: 768px) {
            .knowledge-hero h2 {
                font-size: 1.8rem;
            }
            
            .knowledge-hero p {
                font-size: 1rem;
            }
            
            .articles-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 576px) {
            .knowledge-hero {
                padding: 60px 0;
            }
            
            .knowledge-hero h2 {
                font-size: 1.6rem;
            }
            
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .article-meta span {
                margin-bottom: 5px;
            }
        }