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

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #000046, #1cb5e0);
        color: #ffffff;
        line-height: 1.6;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    /* 动态极光背景动画 */
    @keyframes aurora-move {
        0% {
            background-position: 0% 50%;
        }
        50% {
            background-position: 100% 50%;
        }
        100% {
            background-position: 0% 50%;
        }
    }

    body {
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
    }

    /* 导航栏样式 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.5);
        padding: 20px 50px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
    }

    .navbar a {
        color: #ffffff;
        text-decoration: none;
        margin: 0 15px;
        font-size: 16px;
        transition: color 0.3s;
    }

    .navbar a:hover {
        color: #1cb5e0;
    }

    /* 主内容区域样式 */
    .container {
        margin-top: 100px;
        padding: 20px;
        max-width: 1200px;
        width: 90%;
        margin-left: auto;
        margin-right: auto;
    }

    /* 卡片式展示 */
    .card-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        margin-bottom: 50px;
    }

    .card {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        transition: transform 0.3s, background 0.3s;
    }

    .card:hover {
        transform: translateY(-10px);
        background: rgba(28, 181, 224, 0.2);
    }

    .card h3 {
        margin-bottom: 15px;
        font-family: 'Montserrat', sans-serif;
        font-size: 20px;
    }

    .card p {
        font-size: 16px;
    }

    /* 示例展示区 */
    .example-section {
        background: rgba(0, 0, 0, 0.7);
        padding: 30px;
        border-radius: 10px;
        margin-bottom: 50px;
    }

    .example-section h2 {
        font-family: 'Montserrat', sans-serif;
        margin-bottom: 20px;
        font-size: 24px;
    }

    .example-section p {
        margin-bottom: 15px;
        font-size: 16px;
    }

    .example-section pre {
        background: #2d2d2d;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 15px;
    }

    .example-section code {
        color: #f8f8f2;
        font-family: 'Courier New', Courier, monospace;
    }

    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    table, th, td {
        border: 1px solid #1cb5e0;
    }

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

    th {
        background: #1cb5e0;
        color: #ffffff;
    }

    /* 列表样式 */
    ul {
        list-style: inside disc;
        margin-bottom: 20px;
    }

    li {
        margin-bottom: 10px;
    }

    /* 图片样式 */
    .image-gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 30px;
    }

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

    /* 按钮样式 */
    .btn {
        display: inline-block;
        padding: 10px 20px;
        background: #1cb5e0;
        color: #ffffff;
        border: none;
        border-radius: 5px;
        text-decoration: none;
        transition: background 0.3s;
        cursor: pointer;
    }

    .btn:hover {
        background: #000046;
    }

    /* 自适应布局 */
    @media (max-width: 1440px) {
        .navbar {
            padding: 15px 30px;
        }

        .container {
            width: 95%;
        }
    }

    @media (max-width: 1200px) {
        .navbar a {
            font-size: 14px;
            margin: 0 10px;
        }
    }

    @media (max-width: 1024px) {
        .card-grid {
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        }
    }

    @media (max-width: 768px) {
        .navbar {
            flex-direction: column;
            align-items: flex-start;
        }

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

        .example-section {
            padding: 20px;
        }
    }

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

        .navbar a {
            font-size: 12px;
            margin: 0 5px;
        }

        .card h3 {
            font-size: 18px;
        }

        .card p {
            font-size: 14px;
        }

        .example-section h2 {
            font-size: 20px;
        }
    }

    @media (max-width: 320px) {
        .navbar {
            padding: 8px 15px;
        }

        .navbar a {
            font-size: 10px;
            margin: 0 3px;
        }

        .card h3 {
            font-size: 16px;
        }

        .card p {
            font-size: 12px;
        }

        .example-section h2 {
            font-size: 18px;
        }
    }

    /* 提示信息样式 */
    .hint {
        text-align: center;
        font-size: 18px;
        margin-bottom: 40px;
        color: #1cb5e0;
    }