/* 导航栏 */
    nav {
        background: #0078d7;
        color: white;
        padding: 10px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    nav ul {
        list-style: none;
        display: flex;
        gap: 15px;
    }
    nav li {
        font-size: 1rem;
    }

    /* 主内容布局 */
    .container {
        max-width: 1200px;
        margin: 20px auto;
        display: flex;
        gap: 20px;
    }
    .main {
        flex: 3;
        padding: 20px;
        background: white;
        border-radius: 5px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }
    .sidebar {
        flex: 1;
        background: white;
        padding: 20px;
        border-radius: 5px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }

    /* 代码高亮 */
    pre {
        background: #f4f4f4;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-size: 0.9rem;
        border: 1px solid #ddd;
    }
    code {
        font-family: 'Courier New', monospace;
        background: #eaeaea;
        padding: 2px 4px;
        border-radius: 4px;
        color: #d14;
    }

    /* 页脚 */
    footer {
        text-align: center;
        padding: 20px 0;
        background: #f9f9f9;
        border-top: 1px solid #ddd;
        margin-top: 20px;
        font-size: 0.9rem;
    }