/* 面包屑导航 */
        .breadcrumb {
            padding: 20px 0;
            font-size: 0.9rem;
        }
        
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        
        .breadcrumb span {
            color: #777;
            margin: 0 10px;
        }
        
        /* 文章头部 */
        .article-header {
            margin: 30px 0;
            padding: 30px;
            background: linear-gradient(135deg, rgba(52, 152, 219, 0.05), rgba(46, 204, 113, 0.05));
            border-radius: 15px;
            box-shadow: var(--shadow);
        }
        
        .article-header h1 {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 15px;
            line-height: 1.3;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            margin-top: 20px;
            color: #777;
        }
        
        .meta-item {
            display: flex;
            align-items: center;
            margin-right: 20px;
            font-size: 0.9rem;
        }
        
        .meta-item i {
            margin-right: 5px;
            color: var(--primary);
        }
        
        /* 文章内容 */
        .article-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 50px 0;
        }
        
        .main-content {
            font-size: 1.1rem;
            line-height: 1.8;
        }
        
        .main-content h2 {
            font-size: 1.8rem;
            margin: 40px 0 20px;
            color: var(--dark);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
        }
        
        .main-content h3 {
            font-size: 1.4rem;
            margin: 30px 0 15px;
            color: var(--dark);
        }
        
        .main-content p {
            margin-bottom: 20px;
            text-align: justify;
        }
        
        .main-content blockquote {
            background: linear-gradient(135deg, rgba(52, 152, 219, 0.05), rgba(46, 204, 113, 0.05));
            border-left: 4px solid var(--primary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
        }
        
        .main-content ul, .main-content ol {
            margin: 20px 0;
            padding-left: 30px;
        }
        
        .main-content li {
            margin-bottom: 10px;
        }
        
        .main-content img {
            width: 100%;
            border-radius: 10px;
            margin: 25px 0;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .main-content img:hover {
            transform: scale(1.02);
        }
        
        /* 侧边栏 */
        .sidebar {
            position: relative;
        }
    
        .sticky-sidebar {
            position: sticky;
            top: 100px;
        }
        
        .sidebar-widget {
            background: white;
            border-radius: 15px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: var(--shadow);
        }
        
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--dark);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
        }
        
        .related-articles {
            list-style: none;
        }
        
        .related-articles li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dashed #eee;
        }
        
        .related-articles a {
            color: var(--text);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
        }
        
        .related-articles a:hover {
            color: var(--primary);
        }
        
        .related-articles i {
            margin-right: 10px;
            color: var(--primary);
            font-size: 0.8rem;
        }
        
        .author-info {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        
        .author-avatar {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2.5rem;
            margin-bottom: 15px;
        }
        
        .author-name {
            font-weight: 600;
            font-size: 1.2rem;
            margin-bottom: 5px;
        }
        
        .author-title {
            color: #777;
            margin-bottom: 15px;
        }
        
        .social-links {
            display: flex;
            justify-content: center;
            margin-top: 15px;
        }
        
        .social-links a {
            width: 36px;
            height: 36px;
            borderRadius: 50%;
            background: var(--light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--dark);
            margin: 0 5px;
            transition: var(--transition);
        }
        
        .social-links a:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-3px);
        }
        
        /* 文章底部 */
        .article-footer {
            margin: 50px 0;
            padding: 30px;
            background: linear-gradient(135deg, rgba(52, 152, 219, 0.05), rgba(46, 204, 113, 0.05));
            border-radius: 15px;
            box-shadow: var(--shadow);
        }
        
        .tags {
            display: flex;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        
        .tag {
            padding: 5px 15px;
            background: white;
            border-radius: 50px;
            margin-right: 10px;
            margin-bottom: 10px;
            font-size: 0.9rem;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .tag:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-3px);
        }
        
        .article-nav {
            display: flex;
            justify-content: space-between;
            margin-top: 30px;
        }
        
        .article-nav a {
            display: flex;
            align-items: center;
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
        }
        
        .article-nav a:hover {
            color: var(--accent);
        }
        
        .article-nav i {
            margin: 0 10px;
        }
        
        /* 热门文章区域 */
        .popular-articles {
            margin: 50px 0;
        }
        
        .popular-articles h2 {
            font-size: 1.8rem;
            margin-bottom: 30px;
            color: var(--dark);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
        }
        
        .popular-articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
        }
        
        .popular-article-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .popular-article-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
        }
        
        .article-card-img {
            height: 180px;
            overflow: hidden;
        }
        
        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .popular-article-card:hover .article-card-img img {
            transform: scale(1.05);
        }
        
        .article-card-content {
            padding: 20px;
        }
        
        .article-card-content h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        
        .article-card-content h3 a {
            color: var(--dark);
            text-decoration: none;
            transition: var(--transition);
        }
        
        .article-card-content h3 a:hover {
            color: var(--primary);
        }
        
        .article-card-meta {
            display: flex;
            justify-content: space-between;
            color: #777;
            font-size: 0.85rem;
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px solid #eee;
        }
        
        .article-card-meta span {
            display: flex;
            align-items: center;
        }
        
        .article-card-meta i {
            margin-right: 5px;
            color: var(--primary);
        }
        
    
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .article-content {
                grid-template-columns: 1fr;
            }
            
            .sidebar {
                order: -1;
                margin-bottom: 40px;
            }
            
            .sticky-sidebar {
                position: relative;
                top: 0;
            }
            
            .popular-articles-grid {
                grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            }
        }
        
        @media (max-width: 768px) {
            nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            }
            
            nav ul.active {
                display: flex;
            }
            
            nav li {
                margin: 10px 0;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .article-header h1 {
                font-size: 2rem;
            }
            
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .meta-item {
                margin-bottom: 10px;
            }
            
            .popular-articles-grid {
                grid-template-columns: 1fr;
            }
        }