/* 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;
        color: #FFFFFF;
        background: linear-gradient(135deg, #4A00E0, #8E2DE2, #FF2EC7);
        background-size: 400% 400%;
        animation: gradient-animation 15s ease infinite;
        line-height: 1.6;
        padding: 20px;
    }

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

    /* 容器布局 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: 1fr 3fr;
        gap: 20px;
        padding: 20px;
        background: rgba(0, 0, 0, 0.6);
        border-radius: 15px;
    }

    /* 侧边栏 */
    .sidebar {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }

    .sidebar img {
        width: 100%;
        height: auto;
        border-radius: 10px;
    }

    /* 主内容 */
    .main-content {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.7);
        padding: 15px 30px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }

    .navbar .logo {
        font-size: 1.8em;
        font-weight: bold;
        color: #FFFFFF;
    }

    .navbar ul {
        list-style: none;
        display: flex;
        gap: 20px;
    }

    .navbar ul li a {
        color: #FFFFFF;
        text-decoration: none;
        font-size: 1em;
        transition: color 0.3s ease;
    }

    .navbar ul li a:hover {
        color: #FF2EC7;
    }

    /* 移动端导航 */
    .hamburger {
        display: none;
        flex-direction: column;
        cursor: pointer;
    }

    .hamburger div {
        width: 25px;
        height: 3px;
        background: #FFFFFF;
        margin: 4px 0;
        transition: all 0.3s ease;
    }

    @media (max-width: 768px) {
        .container {
            grid-template-columns: 1fr;
        }

        .navbar ul {
            display: none;
            flex-direction: column;
            background: rgba(0, 0, 0, 0.9);
            position: absolute;
            top: 60px;
            right: 20px;
            width: 200px;
            padding: 20px;
            border-radius: 10px;
        }

        .navbar ul.active {
            display: flex;
        }

        .hamburger {
            display: flex;
        }
    }

    /* 标题样式 */
    h1, h2, h3, h4 {
        color: #FFFFFF;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    h1 {
        font-size: 2.5em;
        margin-bottom: 10px;
    }

    h2 {
        font-size: 2em;
        margin-bottom: 15px;
    }

    h3 {
        font-size: 1.5em;
        margin-bottom: 10px;
    }

    h4 {
        font-size: 1.2em;
        margin-top: 20px;
        margin-bottom: 10px;
    }

    /* 段落样式 */
    p {
        font-size: 1em;
        margin-bottom: 15px;
        color: #E0E0E0;
    }

    /* 按钮样式 */
    .button {
        background: linear-gradient(90deg, #4A00E0, #8E2DE2);
        padding: 10px 20px;
        border: none;
        border-radius: 25px;
        color: #FFFFFF;
        cursor: pointer;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        font-size: 1em;
    }

    .button:hover {
        transform: scale(1.1);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    }

    /* 代码块样式 */
    pre {
        background: rgba(0, 0, 0, 0.8);
        padding: 15px;
        border-radius: 10px;
        overflow-x: auto;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #FF2EC7;
        font-size: 0.95em;
    }

    /* 示范展示样式 */
    .example-display {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 15px;
    }

    .example-display h2 {
        color: #FFD700;
    }

    /* 图表与图形 */
    .chart {
        width: 100%;
        height: 300px;
        background: conic-gradient(#FF2EC7 25%, #8E2DE2 25%, #8E2DE2 50%);
        border-radius: 50%;
        margin: 20px 0;
    }

    /* 图片样式 */
    .images-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 10px;
    }

    .images-grid img {
        width: 100%;
        height: auto;
        border-radius: 10px;
    }

    /* 提示文本 */
    .hint {
        font-size: 0.9em;
        color: #FF2EC7;
        text-align: center;
        margin-top: 20px;
    }

    /* 自适应调整 */
    @media (max-width: 480px) {
        h1 {
            font-size: 2em;
        }

        h2 {
            font-size: 1.5em;
        }

        .navbar ul li a {
            font-size: 0.9em;
        }
    }

    @media (min-width: 1440px) {
        .container {
            max-width: 1400px;
        }

        h1 {
            font-size: 3em;
        }

        h2 {
            font-size: 2.5em;
        }
    }