/* 全局样式 */
    @import url('https://fonts.googleapis.com/css2?family=Poppins:wght@700&family=Lato:wght@300&display=swap');

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Lato', sans-serif;
        color: #ffffff;
        background: radial-gradient(circle, rgba(0, 3, 51, 1) 0%, rgba(26, 26, 77, 1) 100%);
        line-height: 1.6;
    }

    a {
        color: #5c00ff;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #00ff99;
    }

    /* 头部样式 */
    header {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.8);
        padding: 20px 50px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
    }

    .logo {
        font-family: 'Poppins', sans-serif;
        font-size: 24px;
        font-weight: bold;
        color: #5c00ff;
    }

    nav ul {
        list-style: none;
        display: flex;
    }

    nav ul li {
        margin-left: 20px;
    }

    /* 主容器 */
    .container {
        max-width: 1200px;
        margin: 100px auto 50px;
        padding: 20px;
    }

    /* 特色段落 */
    .feature {
        background: rgba(255, 255, 255, 0.1);
        padding: 30px;
        border-radius: 10px;
        margin-bottom: 40px;
        animation: fadeIn 2s ease-in-out;
    }

    /* 标题样式 */
    h1, h2, h3, h4 {
        font-family: 'Poppins', sans-serif;
        color: #ffffff;
        margin-bottom: 20px;
    }

    h1 {
        font-size: 36px;
    }

    h2 {
        font-size: 28px;
        border-bottom: 2px solid #5c00ff;
        padding-bottom: 10px;
    }

    h3 {
        font-size: 24px;
        margin-top: 30px;
    }

    h4 {
        font-size: 20px;
        margin-top: 20px;
    }

    /* 段落样式 */
    p {
        font-size: 16px;
        color: #e0e0e0;
        margin-bottom: 15px;
    }

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

    li {
        margin-bottom: 10px;
    }

    /* 代码块样式 */
    pre {
        background: #1a1a4d;
        padding: 20px;
        border-radius: 10px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #00ff99;
    }

    /* 图片样式 */
    .images {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        margin-bottom: 40px;
    }

    .images img {
        width: 100%;
        max-width: 320px;
        height: auto;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
        transition: transform 0.3s ease;
    }

    .images img:hover {
        transform: scale(1.05);
    }

    /* 示例展示样式 */
    .example {
        background: rgba(255, 255, 255, 0.05);
        padding: 30px;
        border-left: 5px solid #00ff99;
        margin-bottom: 40px;
        animation: slideUp 1.5s ease-in-out;
    }

    /* 页脚样式 */
    footer {
        text-align: center;
        padding: 20px;
        background: rgba(0, 0, 0, 0.8);
        position: fixed;
        width: 100%;
        bottom: 0;
        color: #aaaaaa;
        font-size: 14px;
    }

    /* 动画关键帧 */
    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(20px); }
        to { opacity: 1; transform: translateY(0); }
    }

    @keyframes slideUp {
        from { opacity: 0; transform: translateY(50px); }
        to { opacity: 1; transform: translateY(0); }
    }

    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    /* 背景动态效果 */
    .background-aurora {
        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;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .container {
            max-width: 1100px;
        }
    }

    @media (max-width: 1200px) {
        .container {
            max-width: 1000px;
        }
    }

    @media (max-width: 1024px) {
        .container {
            max-width: 90%;
        }

        nav ul {
            flex-direction: column;
            background: rgba(0, 0, 0, 0.9);
            position: absolute;
            top: 70px;
            right: 20px;
            display: none;
        }

        nav ul.active {
            display: flex;
        }

        nav ul li {
            margin: 10px 0;
        }
    }

    @media (max-width: 768px) {
        .container {
            padding: 10px;
        }

        h1 {
            font-size: 28px;
        }

        h2 {
            font-size: 24px;
        }

        h3 {
            font-size: 20px;
        }

        h4 {
            font-size: 18px;
        }

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

    @media (max-width: 480px) {
        header {
            padding: 15px 20px;
        }

        .logo {
            font-size: 20px;
        }

        nav ul {
            position: static;
            flex-direction: row;
            background: none;
            display: flex;
        }

        .images img {
            max-width: 100%;
        }
    }

    @media (max-width: 320px) {
        h1 {
            font-size: 24px;
        }

        h2 {
            font-size: 20px;
        }

        h3 {
            font-size: 18px;
        }

        h4 {
            font-size: 16px;
        }

        .feature {
            padding: 20px;
        }

        nav ul li {
            margin-left: 10px;
        }
    }