/* 基本样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', 'Helvetica', sans-serif;
        background: linear-gradient(135deg, #ffffff, #f0f0f0);
        color: #333333;
    }

    /* 头部样式 */
    .header {
        background: linear-gradient(135deg, #0074D9, #1E90FF);
        padding: 40px 20px;
        text-align: center;
        color: white;
    }

    .header h1 {
        font-size: 2.5em;
        margin: 0;
    }

    /* 主容器 */
    .container {
        width: 90%;
        max-width: 1200px;
        margin: 40px auto;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
    }

    /* 模块样式 */
    .module {
        background-color: #ffffff;
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .module:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    }

    .module img {
        width: 100%;
        height: auto;
        border-radius: 5px;
    }

    .module h2 {
        font-size: 1.5em;
        margin-top: 15px;
        color: #0074D9;
    }

    .module p {
        font-size: 1em;
        line-height: 1.6;
        margin-top: 10px;
    }

    /* 按钮样式 */
    .button {
        display: inline-block;
        padding: 10px 20px;
        margin-top: 15px;
        background-color: #FF7F50;
        color: white;
        text-decoration: none;
        border-radius: 5px;
        transition: transform 0.3s ease, background-color 0.3s ease;
    }

    .button:hover {
        transform: scale(1.05);
        background-color: #FF6347;
    }

    /* 示例文章样式 */
    .sample-article {
        grid-column: 1 / -1;
        background-color: #f9f9f9;
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    }

    .sample-article h2 {
        font-size: 2em;
        color: #333333;
        margin-bottom: 20px;
    }

    .sample-article h3 {
        font-size: 1.5em;
        color: #0074D9;
        margin-top: 20px;
    }

    .sample-article p {
        font-size: 1em;
        line-height: 1.8;
        margin-top: 10px;
    }

    .sample-article pre {
        background-color: #eeeeee;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-top: 10px;
    }

    .sample-article code {
        font-family: 'Courier New', Courier, monospace;
        color: #d6336c;
    }

    .sample-article table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 15px;
    }

    .sample-article th, .sample-article td {
        border: 1px solid #dddddd;
        padding: 10px;
        text-align: left;
    }

    .sample-article th {
        background-color: #f2f2f2;
    }

    /* 提示信息样式 */
    .notice {
        text-align: center;
        font-size: 1.2em;
        color: #555555;
        margin: 40px 0;
    }

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

    @media (max-width: 1200px) {
        .container {
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        }
    }

    @media (max-width: 1024px) {
        .header {
            padding: 30px 15px;
        }

        .module h2 {
            font-size: 1.3em;
        }
    }

    @media (max-width: 768px) {
        .container {
            grid-template-columns: 1fr;
        }

        .header h1 {
            font-size: 2em;
        }
    }

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

        .module h2 {
            font-size: 1.2em;
        }
    }

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

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