/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', 'Helvetica Neue', sans-serif;
        line-height: 1.6;
        background: radial-gradient(circle, #0A66C2, #B4B4B4);
        color: #333;
    }

    /* 容器 */
    .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    /* 标题 */
    header {
        text-align: center;
        padding: 50px 0;
        background: linear-gradient(135deg, #0A66C2, #FF6F61);
        color: white;
        border-radius: 10px;
    }

    header h1 {
        font-size: 2.5em;
        margin-bottom: 10px;
    }

    header p {
        font-size: 1.2em;
    }

    /* 导航 */
    nav {
        display: flex;
        justify-content: center;
        background-color: #B4B4B4;
        padding: 10px 0;
        flex-wrap: wrap;
    }

    nav a {
        margin: 0 15px;
        color: #0A66C2;
        text-decoration: none;
        font-weight: bold;
        position: relative;
    }

    nav a::after {
        content: '';
        display: block;
        width: 0;
        height: 2px;
        background: #FF6F61;
        transition: width 0.3s;
    }

    nav a:hover::after {
        width: 100%;
    }

    /* 主内容 */
    main {
        display: flex;
        flex-wrap: wrap;
        margin-top: 30px;
    }

    /* 侧边栏 */
    aside {
        flex: 1 1 25%;
        padding: 20px;
        background-color: #F5F5F5;
        border-radius: 10px;
        margin-right: 20px;
    }

    aside h3 {
        color: #0A66C2;
        margin-bottom: 15px;
    }

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

    aside li {
        margin-bottom: 10px;
    }

    /* 文章展示 */
    .article {
        flex: 3 1 70%;
        background-color: rgba(255, 255, 255, 0.8);
        padding: 30px;
        border-radius: 10px;
        position: relative;
    }

    .article::before {
        content: '示例展示';
        position: absolute;
        top: -20px;
        left: 20px;
        background-color: #FF6F61;
        color: white;
        padding: 5px 10px;
        border-radius: 5px;
        font-weight: bold;
    }

    .article h2, .article h3, .article h4 {
        color: #0A66C2;
    }

    .article pre {
        background-color: #272822;
        color: #F8F8F2;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
    }

    .article table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }

    .article table, .article th, .article td {
        border: 1px solid #ddd;
    }

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

    .article th {
        background-color: #0A66C2;
        color: white;
    }

    /* 数据展示 */
    .data-section {
        display: flex;
        flex-wrap: wrap;
        margin-top: 40px;
    }

    .data-item {
        flex: 1 1 30%;
        background: #FFFFFF;
        margin: 10px;
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        text-align: center;
    }

    .data-item img {
        width: 100px;
        height: 100px;
        object-fit: cover;
        margin-bottom: 15px;
    }

    .data-item h4 {
        color: #FF6F61;
        margin-bottom: 10px;
    }

    /* 提示 */
    .notice {
        text-align: center;
        margin: 30px 0;
        font-size: 1.1em;
        color: #555;
    }

    /* 底部 */
    footer {
        text-align: center;
        padding: 20px 0;
        background-color: #B4B4B4;
        color: white;
    }

    /* 动画 */
    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    body {
        animation: aurora-move 15s linear infinite;
        background-size: 400% 400%;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .data-item {
            flex: 1 1 45%;
        }
    }

    @media (max-width: 1200px) {
        .data-item {
            flex: 1 1 45%;
        }
    }

    @media (max-width: 1024px) {
        main {
            flex-direction: column;
        }

        aside {
            margin-right: 0;
            margin-bottom: 20px;
        }

        .article {
            flex: 1 1 100%;
        }

        .data-item {
            flex: 1 1 100%;
        }
    }

    @media (max-width: 768px) {
        nav {
            flex-direction: column;
        }

        nav a {
            margin: 10px 0;
        }

        .data-item {
            flex: 1 1 100%;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 2em;
        }

        header p {
            font-size: 1em;
        }

        .article {
            padding: 20px;
        }
    }

    @media (max-width: 320px) {
        nav a {
            margin: 5px 0;
            font-size: 0.9em;
        }

        .data-item img {
            width: 80px;
            height: 80px;
        }

        .data-item h4 {
            font-size: 1em;
        }
    }