/* 基础样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f5f5f5;
        }
        
        a {
            text-decoration: none;
            color: #0088cc;
            transition: color 0.3s;
        }
        
        a:hover {
            color: #005580;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 头部样式 */
        header {
            background-color: #0088cc;
            color: white;
            padding: 15px 0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 24px;
            font-weight: bold;
        }
        
        .logo a {
            color: white;
            display: flex;
            align-items: center;
        }
        
        .logo i {
            margin-right: 10px;
            font-size: 28px;
        }
        
        /* 导航样式 */
        nav {
            background-color: #fff;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            margin-bottom: 20px;
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
        }
        
        .main-nav {
            display: flex;
            list-style: none;
        }
        
        .main-nav li {
            margin-right: 20px;
            position: relative;
        }
        
        .main-nav a {
            color: #333;
            padding: 5px 0;
            display: flex;
            align-items: center;
        }
        
        .main-nav a i {
            margin-right: 5px;
        }
        
        .main-nav a:hover {
            color: #0088cc;
        }
        
        .breadcrumb {
            font-size: 14px;
            color: #666;
        }
        
        .breadcrumb a {
            color: #666;
        }
        
        .breadcrumb a:hover {
            color: #0088cc;
        }
        
        /* 主要内容区样式 */
        .main-content {
            display: flex;
            gap: 20px;
            margin-bottom: 30px;
        }
        
        .content {
            flex: 3;
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            padding: 20px;
        }
        
        .sidebar {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .widget {
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            padding: 20px;
        }
        
        .widget-title {
            font-size: 18px;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #0088cc;
            display: flex;
            align-items: center;
        }
        
        .widget-title i {
            margin-right: 8px;
            color: #0088cc;
        }
        
        /* 栏目头部样式 */
        .category-header {
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
        }
        
        .category-title {
            font-size: 24px;
            color: #333;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
        }
        
        .category-title i {
            margin-right: 10px;
            color: #0088cc;
        }
        
        .category-desc {
            color: #666;
            font-size: 16px;
            line-height: 1.5;
        }
        
        /* 文章列表样式 */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .article-item {
            display: flex;
            border: 1px solid #eee;
            border-radius: 8px;
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .article-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .article-img {
            width: 200px;
            flex-shrink: 0;
            overflow: hidden;
        }
        
        .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .article-item:hover .article-img img {
            transform: scale(1.05);
        }
        
        .article-info {
            flex: 1;
            padding: 15px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        
        .article-title {
            font-size: 18px;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        
        .article-meta {
            display: flex;
            gap: 15px;
            font-size: 13px;
            color: #666;
            margin-bottom: 10px;
        }
        
        .article-meta i {
            margin-right: 5px;
        }
        
        .article-desc {
            font-size: 14px;
            color: #666;
            line-height: 1.5;
        }
        
        /* 加载更多按钮 */
        .load-more {
            text-align: center;
            margin-top: 30px;
        }
        
        .load-more-btn {
            background-color: #0088cc;
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 25px;
            font-size: 16px;
            cursor: pointer;
            transition: background-color 0.3s;
            display: flex;
            align-items: center;
            margin: 0 auto;
        }
        
        .load-more-btn i {
            margin-right: 8px;
        }
        
        .load-more-btn:hover {
            background-color: #005580;
        }
        
        /* 自动加载提示 */
        .loading-indicator {
            display: none;
            text-align: center;
            margin-top: 20px;
            padding: 15px;
        }
        
        .loading-text {
            display: flex;
            align-items: center;
            justify-content: center;
            color: #666;
        }
        
        .loading-spinner {
            width: 20px;
            height: 20px;
            border: 2px solid #f3f3f3;
            border-top: 2px solid #0088cc;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-right: 10px;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        /* 随机文章样式 */
        .random-article-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        
        .random-article-item {
            display: flex;
            border: 1px solid #eee;
            border-radius: 8px;
            overflow: hidden;
            transition: transform 0.3s;
        }
        
        .random-article-item:hover {
            transform: translateY(-3px);
        }
        
        .random-article-img {
            width: 80px;
            flex-shrink: 0;
            overflow: hidden;
        }
        
        .random-article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .random-article-info {
            flex: 1;
            padding: 10px;
        }
        
        .random-article-title {
            font-size: 14px;
            margin-bottom: 5px;
            line-height: 1.4;
        }
        
        .random-article-meta {
            font-size: 12px;
            color: #999;
            display: flex;
            align-items: center;
        }
        
        .random-article-meta i {
            margin-right: 3px;
        }
        
        /* 热门文章样式 */
        .hot-article-list {
            list-style: none;
        }
        
        .hot-article-item {
            padding: 10px 0;
            border-bottom: 1px solid #eee;
            display: flex;
            align-items: center;
        }
        
        .hot-article-item:last-child {
            border-bottom: none;
        }
        
        .hot-article-item i {
            margin-right: 8px;
            color: #ff6b6b;
        }
        
        .hot-article-meta {
            font-size: 12px;
            color: #999;
            margin-top: 5px;
            display: flex;
            align-items: center;
        }
        
        .hot-article-meta i {
            margin-right: 5px;
            color: #999;
        }
        
        /* 底部样式 */
        footer {
            background-color: #333;
            color: #fff;
            padding: 30px 0 15px;
        }
        
        .footer-content {
            display: flex;
            justify-content: space-between;
            margin-bottom: 20px;
        }
        
        .footer-section {
            flex: 1;
        }
        
        .footer-section h3 {
            font-size: 18px;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid #555;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 8px;
        }
        
        .footer-links a {
            color: #ccc;
            display: flex;
            align-items: center;
        }
        
        .footer-links a i {
            margin-right: 8px;
        }
        
        .footer-links a:hover {
            color: #0088cc;
        }
        
        .copyright {
            text-align: center;
            padding-top: 15px;
            border-top: 1px solid #555;
            font-size: 14px;
            color: #999;
        }
        
        /* 返回顶部按钮 */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: #0088cc;
            color: white;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }
        
        .back-to-top:hover {
            background-color: #005580;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .main-content {
                flex-direction: column;
            }
            
            .header-content {
                flex-direction: column;
                text-align: center;
            }
            
            .logo {
                margin-bottom: 10px;
            }
            
            .nav-container {
                flex-direction: column;
            }
            
            .main-nav {
                margin-top: 10px;
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .breadcrumb {
                margin-top: 10px;
            }
            
            .article-item {
                flex-direction: column;
            }
            
            .article-img {
                width: 100%;
                height: 180px;
            }
            
            .footer-content {
                flex-direction: column;
                gap: 20px;
            }
        }