/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        line-height: 1.6;
        color: #ffffff;
        background: linear-gradient(135deg, #1a237e, #8e24aa);
        overflow-x: hidden;
    }

    /* 导航栏样式 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.7);
        z-index: 1000;
        box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    }

    .navbar ul {
        list-style: none;
        margin: 0;
        padding: 10px 20px;
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
    }

    .navbar li {
        margin: 0 15px;
    }

    .navbar a {
        text-decoration: none;
        color: #ffffff;
        font-family: 'Poppins', sans-serif;
        font-size: 16px;
        transition: color 0.3s ease;
    }

    .navbar a:hover {
        color: #00e676;
    }

    /* 主内容区 */
    .container {
        display: grid;
        grid-template-columns: repeat(12, 1fr);
        gap: 20px;
        padding: 100px 50px 50px 50px;
    }

    /* 侧边栏 */
    .sidebar {
        grid-column: span 3;
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 8px;
        backdrop-filter: blur(10px);
    }

    .sidebar h3 {
        font-family: 'Poppins', sans-serif;
        color: #00e676;
        margin-bottom: 10px;
    }

    .sidebar ul {
        list-style: none;
        padding: 0;
    }

    .sidebar li {
        margin-bottom: 10px;
    }

    .sidebar a {
        color: #ffffff;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    .sidebar a:hover {
        color: #ff5722;
    }

    /* 主内容 */
    .main-content {
        grid-column: span 9;
    }

    .main-content h1 {
        font-family: 'Poppins', sans-serif;
        font-size: 36px;
        color: #ffeb3b;
        text-align: center;
        margin-bottom: 30px;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    .module {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 8px;
        margin-bottom: 20px;
        backdrop-filter: blur(10px);
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .module:hover {
        transform: translateY(-10px);
        background: rgba(255, 255, 255, 0.2);
    }

    .module h2 {
        font-family: 'Poppins', sans-serif;
        color: #00e676;
        margin-bottom: 10px;
    }

    .module p {
        color: #ffffff;
    }

    /* 示例展示 */
    .example-display {
        grid-column: span 12;
        background: rgba(0, 0, 0, 0.8);
        padding: 30px;
        border-radius: 8px;
        margin-top: 40px;
        position: relative;
    }

    .example-display::before {
        content: '示例展示';
        position: absolute;
        top: -20px;
        left: 20px;
        background: #ff5722;
        color: #ffffff;
        padding: 5px 10px;
        border-radius: 4px;
        font-family: 'Poppins', sans-serif;
        font-size: 14px;
    }

    .example-display article {
        max-height: 600px;
        overflow-y: auto;
        padding-right: 10px;
    }

    .example-display h2, .example-display h3, .example-display h4 {
        color: #ffeb3b;
        font-family: 'Poppins', sans-serif;
    }

    .example-display pre {
        background: #263238;
        padding: 10px;
        border-radius: 4px;
        overflow-x: auto;
    }

    .example-display code {
        color: #ff9800;
        font-family: 'Courier New', monospace;
    }

    .example-display table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 10px;
    }

    .example-display table, .example-display th, .example-display td {
        border: 1px solid #ffffff;
    }

    .example-display th, .example-display td {
        padding: 8px;
        text-align: left;
    }

    .example-display th {
        background: #00bcd4;
        color: #ffffff;
    }

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

    .images img {
        width: 100px;
        height: 100px;
        object-fit: cover;
        border-radius: 4px;
    }

    /* 提示信息 */
    .hint {
        text-align: center;
        font-size: 18px;
        color: #ffeb3b;
        margin: 20px 0;
        font-family: 'Poppins', sans-serif;
    }

    /* 响应式布局 */
    @media (max-width: 1440px) {
        .container {
            padding: 100px 40px 40px 40px;
        }
    }

    @media (max-width: 1200px) {
        .container {
            padding: 100px 30px 30px 30px;
        }
    }

    @media (max-width: 1024px) {
        .container {
            grid-template-columns: repeat(12, 1fr);
            padding: 100px 20px 20px 20px;
        }

        .sidebar {
            grid-column: span 4;
        }

        .main-content {
            grid-column: span 8;
        }
    }

    @media (max-width: 768px) {
        .container {
            grid-template-columns: repeat(6, 1fr);
            padding: 80px 15px 15px 15px;
        }

        .sidebar {
            grid-column: span 6;
        }

        .main-content {
            grid-column: span 6;
        }
    }

    @media (max-width: 480px) {
        .container {
            grid-template-columns: repeat(3, 1fr);
            padding: 60px 10px 10px 10px;
        }

        .sidebar {
            grid-column: span 3;
        }

        .main-content {
            grid-column: span 3;
        }

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

        .navbar li {
            margin: 10px 0;
        }
    }

    @media (max-width: 320px) {
        .main-content h1 {
            font-size: 28px;
        }

        .navbar a {
            font-size: 14px;
        }

        .module h2 {
            font-size: 20px;
        }

        .hint {
            font-size: 16px;
        }
    }

    /* 动画效果 */
    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    .animated-background {
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
    }

    /* 按钮样式 */
    .btn {
        display: inline-block;
        padding: 10px 20px;
        background: #00e676;
        color: #ffffff;
        text-decoration: none;
        border-radius: 4px;
        transition: background 0.3s ease;
        font-family: 'Poppins', sans-serif;
    }

    .btn:hover {
        background: #00c853;
    }