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

    body {
        font-family: 'Roboto', 'Inter', sans-serif;
        background: linear-gradient(135deg, #e0f7fa, #ffffff);
        color: #333;
        line-height: 1.6;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    a {
        color: #007BFF;
        text-decoration: none;
    }

    a[rel="nofollow"] {
        /* 特殊样式可以在这里定义 */
    }

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

    body::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
        z-index: -1;
        opacity: 0.3;
    }

    /* 头部导航栏 */
    header {
        width: 100%;
        padding: 20px 40px;
        background: rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(10px);
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        position: fixed;
        top: 0;
        left: 0;
        z-index: 1000;
    }

    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .navbar-brand {
        font-size: 1.5rem;
        font-weight: bold;
        color: #333;
    }

    .navbar-nav {
        list-style: none;
        display: flex;
        gap: 20px;
    }

    .navbar-nav li a {
        font-size: 1rem;
        transition: color 0.3s ease;
    }

    .navbar-nav li a:hover {
        color: #007BFF;
    }

    /* 主内容区 */
    main {
        flex: 1;
        padding: 120px 20px 40px 20px;
        max-width: 1200px;
        margin: 0 auto;
    }

    .introduction {
        text-align: center;
        margin-bottom: 40px;
    }

    .introduction h1 {
        font-size: 2.5rem;
        margin-bottom: 20px;
        color: #333;
    }

    .introduction p {
        font-size: 1.1rem;
        color: #555;
    }

    /* 示例展示 */
    .example-section {
        margin-bottom: 60px;
    }

    .example-section h2 {
        font-size: 2rem;
        margin-bottom: 20px;
        color: #007BFF;
        border-bottom: 2px solid #007BFF;
        display: inline-block;
    }

    .article {
        background: rgba(255, 255, 255, 0.7);
        backdrop-filter: blur(10px);
        border-radius: 15px;
        padding: 30px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }

    .article h2, .article h3, .article h4 {
        color: #333;
    }

    .article p {
        margin-bottom: 15px;
    }

    .article pre {
        background: #f5f5f5;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 15px;
    }

    .article code {
        font-family: 'Courier New', Courier, monospace;
        color: #d63384;
    }

    /* 数据展示 */
    .data-section {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        justify-content: center;
    }

    .data-card {
        background: rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(10px);
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        padding: 20px;
        width: 300px;
        text-align: center;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .data-card:hover {
        transform: scale(1.05);
        box-shadow: 0 6px 12px rgba(0,0,0,0.2);
    }

    .data-card img {
        width: 100%;
        height: auto;
        border-radius: 5px;
        margin-bottom: 15px;
    }

    .data-card h3 {
        font-size: 1.2rem;
        margin-bottom: 10px;
        color: #333;
    }

    .data-card p {
        font-size: 1rem;
        color: #555;
    }

    /* 图片展示 */
    .gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
        margin-bottom: 40px;
    }

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

    /* 提示信息 */
    .reference-note {
        text-align: center;
        font-size: 1rem;
        color: #888;
        margin-top: 20px;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .data-card {
            width: 280px;
        }
    }

    @media (max-width: 1200px) {
        .navbar-nav {
            gap: 15px;
        }

        .data-card {
            width: 250px;
        }
    }

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

        .introduction h1 {
            font-size: 2rem;
        }

        .data-card {
            width: 220px;
        }
    }

    @media (max-width: 768px) {
        .navbar-nav {
            display: none;
        }

        .introduction h1 {
            font-size: 1.8rem;
        }

        .data-card {
            width: 100%;
        }
    }

    @media (max-width: 480px) {
        header {
            padding: 10px 20px;
        }

        .introduction h1 {
            font-size: 1.5rem;
        }

        .data-card {
            width: 100%;
        }

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

    @media (max-width: 320px) {
        .introduction h1 {
            font-size: 1.2rem;
        }

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