/* 全局样式 */
    body {
        margin: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0D1B2A, #1B263B, #415A77);
        color: #FFFFFF;
        line-height: 1.6;
    }

    /* 头部样式 */
    header {
        background: linear-gradient(135deg, #415A77, #778DA9);
        padding: 20px;
        text-align: center;
        box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    }

    header h1 {
        font-family: 'Orbitron', sans-serif;
        font-size: 36px;
        color: #00FFFF;
        text-shadow: 0 0 10px #00FFFF, 0 0 20px #00FFFF;
    }

    /* 导航栏样式 */
    nav {
        display: flex;
        justify-content: center;
        background-color: rgba(0, 0, 0, 0.5);
        padding: 10px 0;
    }

    nav a {
        color: #FFFFFF;
        text-decoration: none;
        margin: 0 15px;
        font-size: 18px;
        transition: color 0.3s;
    }

    nav a:hover {
        color: #00FFFF;
    }

    /* 主内容样式 */
    main {
        padding: 20px;
        max-width: 1200px;
        margin: auto;
    }

    article {
        background-color: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 8px 16px rgba(0,0,0,0.5);
        margin-bottom: 30px;
    }

    article h2 {
        font-family: 'Orbitron', sans-serif;
        font-size: 28px;
        color: #00FFFF;
        text-shadow: 0 0 5px #00FFFF;
        margin-bottom: 15px;
    }

    article h3, article h4 {
        color: #FFFFFF;
        margin-top: 20px;
    }

    article p {
        margin-bottom: 15px;
    }

    pre {
        background-color: #1B263B;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    code {
        color: #FFD700;
        font-family: 'Courier New', Courier, monospace;
    }

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

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

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

    th {
        background-color: #415A77;
    }

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

    .image-gallery img {
        width: 100%;
        max-width: 320px;
        border-radius: 10px;
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        header h1 {
            font-size: 28px;
        }

        nav a {
            font-size: 16px;
            margin: 0 10px;
        }

        article h2 {
            font-size: 24px;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 24px;
        }

        nav {
            flex-direction: column;
        }

        nav a {
            margin: 5px 0;
        }

        .image-gallery {
            flex-direction: column;
            align-items: center;
        }
    }