/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        background: radial-gradient(circle, #1E1E1E, #000000);
        color: #C0C0C0;
        font-family: 'Roboto', 'Inter', sans-serif;
        line-height: 1.6;
        transition: background 0.5s ease, color 0.5s ease;
    }

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

    body {
        background: radial-gradient(circle, #1E1E1E, transparent), linear-gradient(270deg, #00BFFF, #8A2BE2, #C0C0C0);
        background-size: 400% 400%;
        animation: aurora-move 15s linear infinite;
    }

    /* 头部导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.8);
        padding: 20px 40px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
    }

    .navbar a {
        color: #00BFFF;
        text-decoration: none;
        margin: 0 15px;
        transition: color 0.3s ease;
    }

    .navbar a:hover {
        color: #8A2BE2;
    }

    /* 主要内容区域 */
    .container {
        max-width: 1200px;
        margin: 100px auto 50px;
        padding: 20px;
    }

    h1, h2, h3, h4 {
        color: #FFFFFF;
        font-weight: bold;
        margin-bottom: 20px;
    }

    p {
        font-size: 16px;
        margin-bottom: 20px;
    }

    pre {
        background: #2E2E2E;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        color: #C0C0C0;
    }

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

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

    table, th, td {
        border: 1px solid #555555;
    }

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

    th {
        background: #8A2BE2;
        color: #FFFFFF;
    }

    /* 模块化卡片设计 */
    .cards {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
        margin-bottom: 50px;
    }

    .card {
        background: #000000;
        border: 1px solid #444444;
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 16px rgba(0, 191, 255, 0.5);
    }

    /* 按钮样式 */
    .button {
        display: inline-block;
        padding: 10px 20px;
        background-color: #2E7D32;
        color: #FFFFFF;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .button:hover {
        transform: scale(1.05);
        box-shadow: 0px 6px 10px rgba(0, 191, 255, 0.5);
    }

    .button.warning {
        background-color: #FF6F00;
        color: #000000;
    }

    /* 图片样式 */
    .images {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 50px;
    }

    .images img {
        width: 150px;
        height: 150px;
        object-fit: cover;
        border-radius: 10px;
    }

    /* 示例展示区 */
    .example {
        background: #1E1E1E;
        padding: 30px;
        border-radius: 10px;
        margin-bottom: 50px;
    }

    .example h2 {
        color: #00BFFF;
        margin-bottom: 20px;
    }

    /* 页脚样式 */
    .footer {
        background: rgba(0, 0, 0, 0.8);
        padding: 20px 40px;
        text-align: center;
        color: #C0C0C0;
        position: fixed;
        bottom: 0;
        width: 100%;
    }

    .footer a {
        color: #00BFFF;
        text-decoration: none;
        margin: 0 10px;
        transition: color 0.3s ease;
    }

    .footer a:hover {
        color: #8A2BE2;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .container {
            max-width: 1024px;
        }
    }

    @media (max-width: 1200px) {
        .cards {
            grid-template-columns: repeat(2, 1fr);
        }
    }

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

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

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

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

        .images img {
            width: 100px;
            height: 100px;
        }
    }

    @media (max-width: 320px) {
        .navbar a {
            margin: 5px 0;
        }

        .container {
            padding: 10px;
        }

        .example pre {
            font-size: 14px;
        }
    }