/* 基本变量定义 */
    :root {
        --primary-color: #001f3f; /* 深蓝色 */
        --secondary-color: #d4af37; /* 金色 */
        --highlight-color: #0074d9; /* 电光蓝 */
        --background-gradient: radial-gradient(circle, rgb(0, 31, 63), rgba(0, 31, 63, 0.8));
        --font-family-primary: 'Roboto', sans-serif;
        --font-family-secondary: 'Montserrat', sans-serif;
    }

    /* 全局样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        background: var(--background-gradient);
        color: white;
        font-family: var(--font-family-primary);
        line-height: 1.6;
        padding: 20px;
    }

    h1, h2, h3 {
        font-family: var(--font-family-secondary);
        margin-bottom: 15px;
    }

    h1 {
        font-size: 2.5rem;
        color: var(--secondary-color);
    }

    h2 {
        font-size: 2rem;
        color: var(--highlight-color);
    }

    h3 {
        font-size: 1.75rem;
        color: var(--secondary-color);
    }

    p {
        margin-bottom: 15px;
        font-size: 1rem;
    }

    pre {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 15px;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #00ffcc;
    }

    /* 按钮样式 */
    .button {
        background-color: var(--secondary-color);
        color: black;
        border: none;
        padding: 10px 20px;
        font-size: 16px;
        cursor: pointer;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        border-radius: 5px;
        text-decoration: none;
    }

    .button:hover {
        transform: scale(1.1);
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    }

    /* 容器和布局 */
    .container {
        display: grid;
        grid-template-columns: 1fr 2fr 1fr;
        gap: 20px;
        padding: 20px;
    }

    .module {
        background-color: rgba(0, 116, 217, 0.8);
        color: white;
        padding: 20px;
        text-align: center;
        border-radius: 10px;
        transition: background-color 0.3s ease;
    }

    .module:hover {
        background-color: var(--highlight-color);
    }

    /* 图标样式 */
    .icon-circle {
        width: 50px;
        height: 50px;
        background-color: var(--secondary-color);
        border-radius: 50%;
        display: flex;
        justify-content: center;
        align-items: center;
        color: white;
        font-size: 20px;
        margin: 0 auto 10px auto;
    }

    /* 示例展示样式 */
    .example-display {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        margin-top: 30px;
    }

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

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

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .container {
            grid-template-columns: 1fr 2fr 1fr;
        }
    }

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

    @media (max-width: 1024px) {
        .container {
            grid-template-columns: 1fr;
        }
    }

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

        h1 {
            font-size: 2rem;
        }

        h2 {
            font-size: 1.5rem;
        }

        h3 {
            font-size: 1.25rem;
        }

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

    @media (max-width: 480px) {
        body {
            padding: 10px;
        }

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

        h1 {
            font-size: 1.75rem;
        }

        h2 {
            font-size: 1.25rem;
        }

        h3 {
            font-size: 1rem;
        }

        p {
            font-size: 0.9rem;
        }
    }

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

        h2 {
            font-size: 1rem;
        }

        h3 {
            font-size: 0.875rem;
        }

        p {
            font-size: 0.8rem;
        }

        .button {
            padding: 8px 16px;
            font-size: 14px;
        }
    }

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

    .animated-background {
        background: radial-gradient(circle, rgb(0, 31, 63), transparent);
        animation: aurora-move 15s linear infinite;
    }

    /* 优化代码块的样式 */
    pre {
        background-color: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        font-size: 0.9rem;
    }

    code {
        color: #00ffcc;
        font-family: 'Courier New', Courier, monospace;
    }

    /* 数据展示表格 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    table, th, td {
        border: 1px solid rgba(255, 255, 255, 0.3);
    }

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

    th {
        background-color: rgba(212, 175, 55, 0.8);
    }

    td {
        background-color: rgba(0, 116, 217, 0.6);
    }

    /* 数据可视化图表样式 */
    .chart {
        width: 100%;
        height: 300px;
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        padding: 20px;
    }

    /* 自定义链接样式 */
    a {
        color: var(--highlight-color);
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: var(--secondary-color);
    }