/* 面包屑导航样式 */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            padding: 12px 0;
            font-size: 15px;
            margin-bottom: 0;
        }
        
        .breadcrumb-item {
            display: flex;
            align-items: center;
            margin-right: 5px;
        }
        
        .breadcrumb-link {
            text-decoration: none;
            color: #6c757d;
            transition: color 0.2s;
            display: flex;
            align-items: center;
        }
        
        .breadcrumb-link:hover {
            color: #4a90e2;
        }
        
        .breadcrumb-separator {
            margin: 0 8px;
            color: #adb5bd;
            font-size: 12px;
        }
        
        .breadcrumb-current {
            color: #4a90e2;
            font-weight: 500;
        }
        
        
        /* 响应式设计 */
        @media (max-width: 480px) {
            .breadcrumb {
                font-size: 14px;
            }
            
            .article-title {
                font-size: 22px;
            }
            
            .article-meta {
                flex-wrap: wrap;
            }
            
            .meta-item {
                margin-bottom: 5px;
            }
        }
        
        /* 交互效果 */
        .breadcrumb-link:active {
            transform: scale(0.98);
        }
        
        /* 示例内容样式 */
        .content-section {
            margin-bottom: 25px;
        }
        
        .content-section h2 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #3498db;
        }