/* 基础样式 */
    body {
        margin: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #e0f7fa, #e8f5e9);
        color: #333;
    }
    
    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background-color: #2196F3;
        color: white;
        padding: 15px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
    }
    
    .navbar a {
        color: white;
        text-decoration: none;
        margin-left: 15px;
    }
    
    /* 主容器 */
    .container {
        max-width: 1200px;
        margin: 100px auto 50px;
        padding: 20px;
    }
    
    /* 标题样式 */
    h1, h2, h3 {
        font-family: 'Roboto', sans-serif;
        color: #4CAF50;
    }
    
    /* 文章样式 */
    article {
        background: white;
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }
    
    article h2 {
        color: #2196F3;
    }
    
    article pre {
        background: #f5f5f5;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }
    
    article code {
        font-family: 'Courier New', Courier, monospace;
        color: #d32f2f;
    }
    
    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }
    
    table, th, td {
        border: 1px solid #ddd;
    }
    
    th, td {
        padding: 12px;
        text-align: left;
    }
    
    th {
        background-color: #4CAF50;
        color: white;
    }
    
    /* 图片样式 */
    .images {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin: 20px 0;
    }
    
    .images img {
        width: 100%;
        max-width: 320px;
        border-radius: 5px;
    }
    
    /* 响应式设计 */
    @media (max-width: 768px) {
        .navbar {
            flex-direction: column;
            align-items: flex-start;
        }
        
        .container {
            padding: 10px;
        }
    }
    
    @media (max-width: 480px) {
        .navbar a {
            margin: 5px 0;
        }
    }
    
    /* 提示信息 */
    .reference-note {
        text-align: center;
        font-size: 14px;
        color: #555;
        margin-top: 20px;
    }