/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #00008B, #4B0082, #FF69B4);
        color: #ffffff;
        overflow-x: hidden;
    }

    /* 头部样式 */
    header {
        position: relative;
        text-align: center;
        padding: 60px 20px;
        background: rgba(0, 0, 139, 0.5);
        backdrop-filter: blur(10px);
    }

    header h1 {
        font-size: 3em;
        background: linear-gradient(90deg, #8A2BE2, #00BFFF);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        animation: gradientText 5s ease infinite;
    }

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

    /* 导航栏样式 */
    nav {
        display: flex;
        justify-content: center;
        gap: 20px;
        margin-top: 20px;
    }

    nav a {
        text-decoration: none;
        color: #ffffff;
        font-size: 1.2em;
        position: relative;
        padding: 5px 10px;
        transition: color 0.3s;
    }

    nav a::after {
        content: '';
        position: absolute;
        width: 0;
        height: 2px;
        background: #00BFFF;
        left: 0;
        bottom: -5px;
        transition: width 0.3s;
    }

    nav a:hover::after {
        width: 100%;
    }

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

    /* 主内容区域 */
    main {
        padding: 40px 20px;
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
    }

    section {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 15px;
        padding: 20px;
        backdrop-filter: blur(10px);
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    section h2 {
        font-family: 'Futura', sans-serif;
        text-transform: uppercase;
        letter-spacing: 2px;
        margin-bottom: 20px;
    }

    section h3, section h4 {
        font-family: 'Futura', sans-serif;
        text-transform: uppercase;
        letter-spacing: 1.5px;
        margin-top: 30px;
        margin-bottom: 15px;
    }

    section p {
        line-height: 1.6;
        letter-spacing: 1px;
    }

    pre {
        background: rgba(255, 255, 255, 0.2);
        padding: 15px;
        border-radius: 10px;
        overflow-x: auto;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #7FFFD4;
    }

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

    table, th, td {
        border: 1px solid #00BFFF;
    }

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

    th {
        background: rgba(0, 191, 255, 0.3);
    }

    /* 图像样式 */
    .decorative-images {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
    }

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

    /* 粒子动画 */
    .particle {
        width: 10px;
        height: 10px;
        background: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        position: absolute;
        animation: particles 3s infinite;
    }

    @keyframes particles {
        0% { transform: translate(0, 0); opacity: 1;}
        50% { transform: translate(50px, -50px); opacity: 0.5;}
        100% { transform: translate(0, 0); opacity: 1;}
    }

    /* 内容展示区域 */
    .content-display {
        background: rgba(255, 255, 255, 0.15);
        padding: 30px;
        border-radius: 15px;
        backdrop-filter: blur(10px);
    }

    /* 响应式设计 */
    @media (min-width: 320px) and (max-width: 480px) {
        header h1 {
            font-size: 2em;
        }

        nav a {
            font-size: 1em;
        }

        main {
            padding: 20px 10px;
        }

        section {
            padding: 15px;
        }
    }

    @media (min-width: 481px) and (max-width: 768px) {
        main {
            grid-template-columns: 1fr;
        }

        .decorative-images img {
            max-width: 160px;
        }
    }

    @media (min-width: 769px) and (max-width: 1024px) {
        main {
            grid-template-columns: 1fr 1fr;
        }

        .decorative-images img {
            max-width: 200px;
        }
    }

    @media (min-width: 1025px) and (max-width: 1200px) {
        main {
            grid-template-columns: 1fr 1fr 1fr;
        }

        .decorative-images img {
            max-width: 240px;
        }
    }

    @media (min-width: 1201px) and (max-width: 1440px) {
        main {
            grid-template-columns: 1fr 1fr 1fr 1fr;
        }

        .decorative-images img {
            max-width: 280px;
        }
    }

    @media (min-width: 1441px) {
        main {
            grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
        }

        .decorative-images img {
            max-width: 320px;
        }
    }

    /* 鼠标涟漪效果 */
    body::after {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: transparent;
        pointer-events: none;
    }