/* 全局样式重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    /* 基本字体设置 */
    body {
        font-family: 'Roboto', sans-serif;
        color: #ffffff;
        background: linear-gradient(45deg, #1e005a, #4c0099, #ff6f61, #1e005a);
        background-size: 400% 400%;
        animation: gradientAnimation 15s ease infinite;
        line-height: 1.6;
        padding: 20px;
    }

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

    /* 容器设置 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 40px 20px;
        background: rgba(0, 0, 0, 0.6);
        border-radius: 10px;
        box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    }

    /* 标题样式 */
    h1, h2, h3, h4 {
        font-weight: bold;
        text-align: center;
        margin-bottom: 20px;
        background: -webkit-linear-gradient(#ff7f50, #6a0dad);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 2.5rem;
    }

    h3 {
        font-size: 2rem;
    }

    h4 {
        font-size: 1.5rem;
    }

    /* 段落样式 */
    p {
        font-size: 1.1rem;
        margin-bottom: 15px;
        line-height: 1.8;
    }

    /* 按钮样式 */
    .btn {
        display: inline-block;
        padding: 12px 25px;
        margin: 10px 0;
        border: none;
        border-radius: 5px;
        background-color: #4c0099;
        color: #ffffff;
        font-size: 1rem;
        cursor: pointer;
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
    }

    .btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(255, 255, 255, 0.3);
        border-radius: 5px;
        opacity: 0;
        transform: scale(1.2);
        transition: all 0.3s ease;
    }

    .btn:hover::before {
        opacity: 1;
        transform: scale(1);
    }

    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }

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

    th, td {
        padding: 12px;
        text-align: left;
    }

    th {
        background-color: rgba(76, 0, 153, 0.8);
    }

    /* 代码块样式 */
    pre {
        background: rgba(0, 0, 0, 0.8);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

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

    /* 图片样式 */
    .images {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
        margin: 20px 0;
    }

    .images img {
        width: 100px;
        height: 100px;
        object-fit: cover;
        border-radius: 5px;
    }

    /* 模块化布局 */
    .module {
        margin-bottom: 40px;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.3rem; }
        h3 { font-size: 1.8rem; }
        h4 { font-size: 1.3rem; }
    }

    @media (max-width: 1200px) {
        .container {
            padding: 30px 15px;
        }

        .images img {
            width: 90px;
            height: 90px;
        }
    }

    @media (max-width: 1024px) {
        h1 { font-size: 2.5rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.6rem; }
        h4 { font-size: 1.2rem; }
    }

    @media (max-width: 768px) {
        .container {
            padding: 20px 10px;
        }

        h1 { font-size: 2rem; }
        h2 { font-size: 1.8rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.1rem; }

        .images img {
            width: 80px;
            height: 80px;
        }
    }

    @media (max-width: 480px) {
        .container {
            padding: 15px 5px;
        }

        h1 { font-size: 1.8rem; }
        h2 { font-size: 1.6rem; }
        h3 { font-size: 1.2rem; }
        h4 { font-size: 1rem; }

        p { font-size: 1rem; }

        .images img {
            width: 70px;
            height: 70px;
        }
    }

    @media (max-width: 320px) {
        h1 { font-size: 1.5rem; }
        h2 { font-size: 1.4rem; }
        h3 { font-size: 1rem; }
        h4 { font-size: 0.9rem; }

        p { font-size: 0.9rem; }

        .images img {
            width: 60px;
            height: 60px;
        }
    }