/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
        color: #ffffff;
        line-height: 1.6;
    }

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

    /* 头部样式 */
    header {
        text-align: center;
        padding: 50px 0;
        background: radial-gradient(circle, rgba(255,87,34,1) 0%, rgba(0,0,0,0) 70%);
        animation: aurora-move 15s linear infinite;
    }

    header h1 {
        font-size: 3em;
        margin-bottom: 20px;
        text-shadow: 3px 3px 10px rgba(0,0,0,0.5);
    }

    header p {
        font-size: 1.2em;
        color: #ffd700;
    }

    /* 导航栏 */
    .navbar {
        display: flex;
        justify-content: center;
        background-color: rgba(30,30,30,0.8);
        padding: 15px 0;
        position: sticky;
        top: 0;
        z-index: 1000;
    }

    .nav-link {
        color: #ffffff;
        margin: 0 20px;
        text-decoration: none;
        font-size: 1em;
        transition: color 0.3s ease;
    }

    .nav-link:hover {
        color: #ff7e00;
    }

    /* 主要内容样式 */
    main {
        padding: 50px 0;
    }

    main h2 {
        font-size: 2.5em;
        margin-bottom: 20px;
        text-align: center;
    }

    main h3 {
        font-size: 2em;
        margin: 40px 0 20px;
        color: #ffa500;
    }

    main p {
        font-size: 1.1em;
        margin-bottom: 20px;
    }

    main pre {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    main code {
        color: #00ff00;
        font-family: 'Courier New', Courier, monospace;
    }

    main table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    main table, main th, main td {
        border: 1px solid #555;
    }

    main th, main td {
        padding: 15px;
        text-align: center;
    }

    main th {
        background-color: #333;
    }

    /* 示例展示样式 */
    .sample-display {
        background: rgba(0, 0, 0, 0.5);
        padding: 30px;
        border-radius: 10px;
        margin: 50px 0;
    }

    .sample-display article {
        max-height: 600px;
        overflow-y: auto;
    }

    .sample-display img {
        width: 100%;
        max-width: 320px;
        margin: 10px;
        border-radius: 8px;
    }

    /* 侧边图片布局 */
    .image-gallery {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    .image-gallery img {
        width: 30%;
        margin: 1.66%;
        border-radius: 8px;
    }

    /* 代码预览样式 */
    .code-preview {
        background: #2c2c2c;
        padding: 20px;
        border-radius: 10px;
        margin: 20px 0;
    }

    /* 警示信息 */
    .reference-note {
        text-align: center;
        font-size: 1.2em;
        margin: 40px 0;
        color: #ffeb3b;
    }

    /* 页脚样式 */
    footer {
        text-align: center;
        padding: 20px 0;
        background-color: rgba(30,30,30,0.9);
        color: #ccc;
    }

    /* 动画关键帧 */
    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.5em;
        }

        main h2 {
            font-size: 2em;
        }

        .nav-link {
            margin: 0 15px;
            font-size: 0.9em;
        }
    }

    @media (max-width: 1200px) {
        .image-gallery img {
            width: 45%;
            margin: 2.5%;
        }

        main h3 {
            font-size: 1.8em;
        }
    }

    @media (max-width: 1024px) {
        .navbar {
            flex-direction: column;
        }

        .nav-link {
            margin: 10px 0;
        }

        .image-gallery img {
            width: 100%;
            margin: 5px 0;
        }
    }

    @media (max-width: 768px) {
        header h1 {
            font-size: 2em;
        }

        main h2 {
            font-size: 1.8em;
        }

        main p, main pre, main table {
            font-size: 1em;
        }
    }

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

        header h1 {
            font-size: 1.5em;
        }

        main h2 {
            font-size: 1.5em;
        }

        .nav-link {
            font-size: 0.8em;
            margin: 5px 0;
        }

        .image-gallery img {
            width: 100%;
            margin: 5px 0;
        }
    }

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.2em;
        }

        main h2 {
            font-size: 1.2em;
        }

        .nav-link {
            font-size: 0.7em;
        }
    }