/* 分类导航 */
        .categories-section {
            padding: 40px 0 20px;
        }
        
        .section-title {
            font-size: 24px;
            font-weight: 500;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 3px;
            background-color: #2c84e6;
        }
        
        .categories-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 30px;
        }
        
        .category-item {
            flex: 1;
            min-width: 120px;
            max-width: 180px;
            background-color: white;
            border-radius: 8px;
            padding: 20px 15px;
            text-align: center;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .category-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.12);
        }
        
        .category-icon {
            font-size: 32px;
            margin-bottom: 10px;
            color: #2c84e6;
        }
        
        .category-name {
            font-size: 16px;
            font-weight: 500;
        }
        
        .category-count {
            font-size: 13px;
            color: #999;
            margin-top: 5px;
        }
        
        /* 资源列表区域 */
        .index-resources-section {
            padding: 20px 0 40px;
        }
        
        .index-resources-tabs {
            display: flex;
            margin-bottom: 20px;
            border-bottom: 1px solid #e0e0e0;
            overflow-x: auto;
            padding-bottom: 5px;
        }
        
        .index-resources-tab {
            padding: 8px 20px;
            font-size: 16px;
            font-weight: 500;
            color: #666;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            margin-right: 10px;
        }
        
        .index-resources-tab.active {
            color: #2c84e6;
            border-bottom: 3px solid #2c84e6;
        }
        
        .index-resources-tab:hover:not(.active) {
            color: #333;
            border-bottom: 3px solid #eee;
        }
        
        /* 热门资源列表 - 图标放左边的布局 */
        .index-popular-index-resources-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        
        .popular-index-resource-item {
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 3px 12px rgba(0,0,0,0.08);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            align-items: center;
            padding: 15px;
        }
        
        .popular-index-resource-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(0,0,0,0.12);
        }
        
        .index-resource-icon-left {
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            font-size: 30px;
            flex-shrink: 0;
        }
        
        .index-resource-icon-left.folder {
            color: #faad14;
        }
        
        .index-resource-icon-left.video {
            color: #ff4d4f;
        }
        
        .index-resource-icon-left.document {
            color: #1890ff;
        }
        
        .index-resource-icon-left.audio {
            color: #52c41a;
        }
        
        .index-resource-icon-left.compressed {
            color: #722ed1;
        }
        
        .index-resource-details {
            flex-grow: 1;
        }
        
        .index-resource-name {
            font-size: 16px;
            font-weight: 500;
            margin: 0 0 5px 0;
        }
        
        .index-resource-name a {
            color: #333;
            text-decoration: none;
        }
        
        .index-resource-name a:hover {
            color: #2c84e6;
            text-decoration: underline;
        }
        
        .index-resource-meta-info {
            font-size: 13px;
            color: #999;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        
        .index-resource-meta-info span {
            display: flex;
            align-items: center;
        }
        
        .index-resource-meta-info i {
            margin-right: 5px;
            font-size: 12px;
        }
        
        .index-resource-stats {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-left: 10px;
            color: #666;
            font-size: 14px;
        }
        
        .index-resource-stats i {
            margin-right: 5px;
        }
        
        /* 加载更多按钮 */
        .load-more {
            text-align: center;
            margin-top: 40px;
        }
        
        .load-more-btn {
            padding: 10px 30px;
            background-color: white;
            color: #2c84e6;
            border: 1px solid #2c84e6;
            border-radius: 4px;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        
        .load-more-btn:hover {
            background-color: #2c84e6;
            color: white;
        }
        
        /* 使用说明区域 */
        .usage-guide {
            background-color: #fff;
            padding: 40px 0;
            margin-top: 30px;
            text-align: center;
        }
        
        .guide-title {
            font-size: 24px;
            font-weight: 500;
            margin-bottom: 20px;
            color: #333;
        }
        
        .guide-content {
            font-size: 16px;
            color: #666;
            max-width: 800px;
            margin: 0 auto;
            line-height: 1.8;
        }
        
        /* 页脚样式 */
        footer {
            background-color: #333;
            color: #999;
            padding: 20px 0;
            margin-top: 0;
        }
        
        .copyright {
            text-align: center;
            font-size: 14px;
            padding: 10px 0;
        }
        
        /* 响应式样式 */
        @media (max-width: 992px) {
            .index-resource-stats {
                flex-direction: column;
                gap: 5px;
                align-items: flex-end;
            }
        }
        
        @media (max-width: 768px) {
            .hero-title {
                font-size: 28px;
            }
            
            .hero-subtitle {
                font-size: 16px;
            }
            
            .filter-options {
                justify-content: center;
            }
            
            .filter-title {
                width: 100%;
                text-align: center;
                margin-bottom: 10px;
            }
            
            .categories-list {
                justify-content: center;
            }
            
            .category-item {
                min-width: 100px;
            }
            
   .popular-index-resource-item {
        flex-direction: row; /* 保持水平排列 */
        align-items: center; /* 垂直居中对齐 */
    }
   .index-resource-icon-left {
        margin-bottom: 0; /* 移除底部间距 */
        margin-right: 15px; /* 保持右侧间距 */
    }
            
            .index-resource-stats {
                margin-left: 0;
                margin-top: 10px;
                align-items: flex-start;
                flex-direction: row;
                gap: 15px;
            }
        }
        
        @media (max-width: 480px) {
            .hero-title {
                font-size: 24px;
            }
            
            .hero-section {
                padding: 40px 0;
            }
            
            .search-input {
                height: 40px;
                font-size: 14px;
                padding-right: 80px;
            }
            
            .search-btn {
                padding: 4px 15px;
                font-size: 14px;
            }
            
            .section-title {
                font-size: 20px;
                text-align: center;
            }
            
            .section-title::after {
                left: 50%;
                transform: translateX(-50%);
            }
            
            .guide-title {
                font-size: 20px;
            }
        }