/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Helvetica', 'Arial', sans-serif;
        background: linear-gradient(135deg, #87CEEB, #F0E68C);
        color: #333;
        line-height: 1.6;
    }

    /* 容器 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    /* 头部样式 */
    header {
        text-align: center;
        padding: 50px 20px;
        background: radial-gradient(circle, rgba(255, 255, 255, 0.8), transparent);
        animation: aurora-move 15s linear infinite;
    }

    header h1 {
        font-family: 'Roboto', sans-serif;
        font-size: 2.5em;
        color: #2E8B57;
    }

    /* 导航栏样式 */
    nav {
        margin: 20px 0;
        text-align: center;
    }

    nav a {
        margin: 0 15px;
        text-decoration: none;
        color: #FFA500;
        font-weight: bold;
        transition: color 0.3s ease;
    }

    nav a:hover {
        color: #FF4500;
    }

    /* 主内容区 */
    main {
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: 20px;
    }

    article {
        background: rgba(255, 255, 255, 0.9);
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }

    article h2 {
        font-family: 'Roboto', sans-serif;
        color: #2E8B57;
        margin-bottom: 10px;
    }

    article h3, article h4 {
        color: #FFA500;
    }

    article pre {
        background: #f4f4f4;
        padding: 10px;
        border-radius: 5px;
        overflow-x: auto;
    }

    article code {
        font-family: 'Courier New', Courier, monospace;
        color: #D2691E;
    }

    /* 侧边栏样式 */
    aside {
        background: rgba(240, 230, 140, 0.8);
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }

    aside h3 {
        color: #FF6347;
    }

    aside ul {
        list-style: none;
        padding: 0;
    }

    aside li {
        margin-bottom: 10px;
    }

    /* 图片样式 */
    .images {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 20px;
    }

    .images img {
        width: 100px;
        height: 100px;
        object-fit: cover;
        border-radius: 5px;
    }

    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 20px;
    }

    table, th, td {
        border: 1px solid #ccc;
    }

    th, td {
        padding: 10px;
        text-align: left;
    }

    th {
        background: #2E8B57;
        color: #fff;
    }

    /* 按钮样式 */
    .button {
        display: inline-block;
        padding: 10px 20px;
        background-color: #FFA500;
        color: #fff;
        border: none;
        border-radius: 20px;
        cursor: pointer;
        box-shadow: 2px 2px 5px rgba(0,0,0,0.2);
        transition: transform 0.3s ease-in-out;
    }

    .button:hover {
        transform: scale(1.1) rotate(2deg);
    }

    /* 动画关键帧 */
    @keyframes aurora-move {
        0% { background: radial-gradient(circle, rgba(255, 87, 34, 0.5), transparent); }
        50% { background: radial-gradient(circle, rgba(255, 165, 0, 0.5), transparent); }
        100% { background: radial-gradient(circle, rgba(255, 87, 34, 0.5), transparent); }
    }

    @media (max-width: 1200px) {
        main {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 768px) {
        header h1 {
            font-size: 2em;
        }

        .images img {
            width: 80px;
            height: 80px;
        }
    }

    @media (max-width: 480px) {
        nav a {
            margin: 0 10px;
            font-size: 0.9em;
        }

        .button {
            padding: 8px 16px;
            font-size: 0.9em;
        }
    }

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.5em;
        }

        .images img {
            width: 60px;
            height: 60px;
        }
    }