/* 基础重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    /* 全局字体和背景 */
    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #f5f7fa, #c3cfe2);
        color: #333;
        line-height: 1.6;
        padding: 20px;
    }

    /* 容器设置 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
        background: rgba(255, 255, 255, 0.9);
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    /* 标题样式 */
    h1, h2, h3, h4 {
        font-family: 'Pacifico', cursive;
        color: #4CAF50;
        margin-bottom: 15px;
        text-align: center;
    }

    h1 {
        font-size: 3em;
        margin-bottom: 20px;
    }

    h2 {
        font-size: 2em;
    }

    h3 {
        font-size: 1.5em;
    }

    h4 {
        font-size: 1.2em;
    }

    /* 段落样式 */
    p {
        margin-bottom: 15px;
        font-size: 1em;
    }

    /* 列表样式 */
    ul {
        list-style: disc inside;
        margin-bottom: 15px;
    }

    li {
        margin-bottom: 10px;
        font-size: 1em;
    }

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

    th, td {
        border: 1px solid #ddd;
        padding: 10px;
        text-align: left;
    }

    th {
        background-color: #4CAF50;
        color: white;
    }

    /* 代码块样式 */
    pre {
        background: #2d2d2d;
        color: #f8f8f2;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
        font-family: 'Courier New', Courier, monospace;
        font-size: 0.9em;
    }

    /* 按钮样式 */
    button {
        background-color: #6A5ACD;
        border: none;
        padding: 10px 20px;
        color: white;
        cursor: pointer;
        transition: transform 0.5s ease, background-color 0.3s ease;
        border-radius: 5px;
        font-size: 1em;
    }

    button:hover {
        transform: scale(1.1);
        background-color: #4B0082;
    }

    /* 悬停效果 */
    a {
        color: #6A5ACD;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #4B0082;
    }

    /* 图片样式 */
    img {
        max-width: 100%;
        height: auto;
        border-radius: 10px;
        margin: 10px 0;
    }

    /* 响应式布局 */
    @media (max-width: 1440px) {
        .container {
            padding: 15px;
        }
    }

    @media (max-width: 1200px) {
        h1 {
            font-size: 2.5em;
        }

        h2 {
            font-size: 1.8em;
        }
    }

    @media (max-width: 1024px) {
        .container {
            padding: 10px;
        }

        h1 {
            font-size: 2.2em;
        }

        h2 {
            font-size: 1.6em;
        }
    }

    @media (max-width: 768px) {
        body {
            padding: 15px;
        }

        h1 {
            font-size: 2em;
        }

        h2 {
            font-size: 1.4em;
        }

        p, li, th, td {
            font-size: 0.9em;
        }
    }

    @media (max-width: 480px) {
        h1 {
            font-size: 1.8em;
        }

        h2 {
            font-size: 1.2em;
        }

        p, li, th, td {
            font-size: 0.85em;
        }
    }

    @media (max-width: 320px) {
        h1 {
            font-size: 1.5em;
        }

        h2 {
            font-size: 1em;
        }

        p, li, th, td {
            font-size: 0.8em;
        }
    }

    /* 样本文字区分 */
    .sample-display {
        border: 2px dashed #4CAF50;
        padding: 20px;
        margin-top: 30px;
        border-radius: 10px;
        background: linear-gradient(135deg, #ffffff, #f0f8ff);
    }

    .sample-display h2 {
        text-align: left;
        color: #333;
    }

    .sample-display pre {
        background: #1e1e1e;
        color: #dcdcdc;
    }

    /* 提示信息样式 */
    .reference-note {
        text-align: center;
        font-size: 1.2em;
        color: #555;
        margin-bottom: 20px;
    }

    /* 交互动画 */
    .fade-in {
        opacity: 0;
        animation: fadeIn 2s forwards;
    }

    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    /* 按钮容器 */
    .button-container {
        text-align: center;
        margin: 20px 0;
    }

    /* 多媒体展示 */
    .media-gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
        margin-bottom: 20px;
    }

    .media-gallery img {
        width: 100px;
        height: 100px;
        object-fit: cover;
    }

    /* 链接安全属性 */
    a.internal-link {
        rel: nofollow;
    }