/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        background: linear-gradient(135deg, #000066, #330099);
        color: #ffffff;
        font-family: 'Roboto Mono', monospace;
        line-height: 1.6;
    }

    /* 容器 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    /* 头部样式 */
    header {
        text-align: center;
        padding: 50px 20px;
        background: linear-gradient(135deg, #000066, #330099);
    }

    header h1 {
        font-size: 3em;
        margin-bottom: 10px;
        text-transform: uppercase;
        letter-spacing: 3px;
    }

    header p {
        font-size: 1.2em;
        color: #cccccc;
    }

    /* 导航栏 */
    nav {
        display: flex;
        justify-content: center;
        gap: 30px;
        margin: 20px 0;
    }

    nav a {
        color: #ffffff;
        text-decoration: none;
        font-size: 1em;
        position: relative;
    }

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

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

    /* 主要内容 */
    main {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
    }

    .content {
        flex: 2;
        min-width: 300px;
    }

    .sidebar {
        flex: 1;
        min-width: 250px;
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
    }

    /* 文章样式 */
    article {
        background: rgba(255, 255, 255, 0.1);
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    }

    article h2 {
        font-size: 2em;
        margin-bottom: 20px;
        color: #ff66cc;
    }

    article h3 {
        font-size: 1.5em;
        margin-top: 30px;
        color: #66ccff;
    }

    article h4 {
        font-size: 1.2em;
        margin-top: 20px;
        color: #99ff99;
    }

    article p {
        margin: 15px 0;
    }

    article pre {
        background: #1a1a1a;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    article code {
        color: #ffcc00;
    }

    table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }

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

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

    th {
        background: #330099;
    }

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

    .images img {
        width: 100%;
        max-width: 320px;
        border-radius: 10px;
        transition: transform 0.3s;
    }

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

    /* 提示样式 */
    .hint {
        text-align: center;
        font-size: 1em;
        color: #ffcc00;
        margin: 30px 0;
        padding: 10px;
        border: 2px dashed #ffcc00;
        border-radius: 10px;
    }

    /* 响应式布局 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.5em;
        }
        
        nav a {
            font-size: 0.95em;
        }
    }

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

        main {
            flex-direction: column;
        }

        .sidebar {
            order: -1;
        }
    }

    @media (max-width: 1024px) {
        article {
            padding: 20px;
        }
    }

    @media (max-width: 768px) {
        header h1 {
            font-size: 2em;
        }

        nav {
            flex-direction: column;
            gap: 15px;
        }

        .images {
            justify-content: center;
        }
    }

    @media (max-width: 480px) {
        header p {
            font-size: 1em;
        }

        article h2 {
            font-size: 1.5em;
        }

        article h3 {
            font-size: 1.2em;
        }

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

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.8em;
        }

        nav a {
            font-size: 0.85em;
        }

        .hint {
            font-size: 0.9em;
        }
    }

    /* 动画与过渡效果 */
    .fade-in {
        animation: fadeIn 2s ease-in-out;
    }

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

    .scale-up {
        transition: transform 0.3s;
    }

    .scale-up:hover {
        transform: scale(1.1);
    }

    /* 链接样式 */
    a {
        color: #66ccff;
        text-decoration: none;
    }

    a:hover {
        color: #ff66cc;
    }

    /* 背景粒子效果 */
    .background {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: -2;
        background: linear-gradient(135deg, #000066, #330099);
        overflow: hidden;
    }

    .particles {
        position: absolute;
        width: 100%;
        height: 100%;
        background: transparent;
        pointer-events: none;
    }

    /* 按钮样式 */
    .btn {
        background-color: #4CAF50;
        border: none;
        color: white;
        padding: 15px 32px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        font-size: 16px;
        margin: 4px 2px;
        cursor: pointer;
        transition: background-color 0.3s ease, transform 0.3s ease;
        border-radius: 5px;
    }

    .btn:hover {
        background-color: #45a049;
        transform: translateY(-2px);
    }

    /* 卡片样式 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.3);
        transition: transform 0.3s;
    }

    .card:hover {
        transform: scale(1.05);
    }

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

    /* 表单隐藏 */
    input, textarea {
        display: none;
    }