/* 基本样式 */
    body {
        margin: 0;
        padding: 0;
        background: linear-gradient(135deg, #2c3e50, #4ca1af);
        color: #ffffff;
        font-family: 'Roboto', sans-serif;
        line-height: 1.6;
    }

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

    /* 头部样式 */
    header {
        text-align: center;
        padding: 50px 0;
        background: linear-gradient(135deg, #141e30, #243b55);
        border-bottom: 2px solid #6c5ce7;
    }

    header h1 {
        font-family: 'Montserrat', sans-serif;
        font-size: 2.5em;
        margin: 0;
        color: #ffffff;
    }

    /* 导航栏样式 */
    nav {
        display: flex;
        justify-content: center;
        gap: 30px;
        margin: 20px 0;
    }

    nav a {
        text-decoration: none;
        color: #ffffff;
        font-family: 'Montserrat', sans-serif;
        font-size: 1em;
        position: relative;
    }

    nav a::after {
        content: '';
        display: block;
        width: 0;
        height: 2px;
        background: #6c5ce7;
        transition: width 0.3s;
        position: absolute;
        bottom: -5px;
        left: 0;
    }

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

    /* 主内容样式 */
    main {
        padding: 40px 0;
    }

    section {
        margin-bottom: 60px;
    }

    section h2 {
        font-family: 'Montserrat', sans-serif;
        font-size: 2em;
        color: #f1c40f;
        margin-bottom: 20px;
    }

    section p {
        font-size: 1em;
        color: #ecf0f1;
        margin-bottom: 20px;
    }

    /* 样例展示文章样式 */
    .sample-article {
        background: rgba(255, 255, 255, 0.1);
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }

    .sample-article h2 {
        color: #e74c3c;
    }

    .sample-article pre {
        background: #34495e;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    .sample-article code {
        font-family: 'Courier New', monospace;
        color: #ecf0f1;
    }

    /* 样例数据网格布局 */
    .data-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }

    .data-item {
        background: rgba(44, 62, 80, 0.8);
        padding: 20px;
        border-radius: 10px;
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .data-item:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    }

    .data-item h3 {
        font-family: 'Montserrat', sans-serif;
        color: #1abc9c;
        margin-bottom: 10px;
    }

    .data-item p {
        color: #bdc3c7;
    }

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

    .images img {
        width: 100%;
        max-width: 320px;
        border-radius: 5px;
    }

    /* 按钮样式 */
    .btn {
        display: inline-block;
        padding: 10px 20px;
        background: #6c5ce7;
        color: #ffffff;
        text-decoration: none;
        border-radius: 5px;
        transition: background 0.3s, transform 0.3s;
        position: relative;
        overflow: hidden;
    }

    .btn::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        transition: width 0.5s, height 0.5s;
    }

    .btn:hover::before {
        width: 200px;
        height: 200px;
    }

    .btn:hover {
        background: #5a4fcf;
        transform: scale(1.05);
    }

    /* 提示样式 */
    .notice {
        text-align: center;
        font-size: 1.2em;
        margin: 20px 0;
        color: #f39c12;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.2em;
        }

        nav a {
            font-size: 0.95em;
        }

        section h2 {
            font-size: 1.8em;
        }
    }

    @media (max-width: 1200px) {
        .container {
            width: 95%;
        }

        .data-grid {
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        }
    }

    @media (max-width: 1024px) {
        header {
            padding: 40px 0;
        }

        .data-item {
            padding: 15px;
        }

        .images img {
            max-width: 100%;
        }
    }

    @media (max-width: 768px) {
        nav {
            flex-direction: column;
            gap: 15px;
        }

        .data-grid {
            grid-template-columns: 1fr;
        }

        section {
            margin-bottom: 40px;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 1.8em;
        }

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

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

        .data-item h3 {
            font-size: 1.1em;
        }

        .notice {
            font-size: 1em;
        }
    }

    /* 链接样式 */
    a {
        color: #1abc9c;
    }

    a:visited {
        color: #16a085;
    }

    a:hover {
        color: #f1c40f;
    }

    /* 代码块样式 */
    pre {
        background: #2c3e50;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    code {
        font-family: 'Courier New', monospace;
        color: #ecf0f1;
    }