/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Open Sans', sans-serif;
        background: radial-gradient(circle, #0A192F, #000000);
        color: #ffffff;
        line-height: 1.6;
    }

    h1, h2, h3, h4, h5, h6 {
        font-family: 'Roboto Mono', monospace;
        color: #64B5F6;
        margin-top: 20px;
        margin-bottom: 10px;
    }

    p {
        margin-bottom: 15px;
    }

    a {
        color: #D500F9;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #64B5F6;
    }

    /* 导航栏样式 */
    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        width: 200px;
        height: 100vh;
        background: #0A192F;
        padding-top: 60px;
        box-shadow: 2px 0 5px rgba(0,0,0,0.5);
    }

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

    .navbar li {
        margin: 20px 0;
        text-align: center;
    }

    .navbar a {
        color: #ffffff;
        font-size: 18px;
    }

    /* 内容区域样式 */
    .content {
        margin-left: 220px;
        padding: 20px;
        background: linear-gradient(135deg, #0A192F, #1E2749);
        min-height: 100vh;
    }

    /* 文章样式 */
    article {
        background: rgba(255, 255, 255, 0.05);
        padding: 20px;
        border-radius: 8px;
    }

    pre {
        background: #1E2749;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #D500F9;
    }

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

    table, th, td {
        border: 1px solid #64B5F6;
    }

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

    th {
        background: #64B5F6;
        color: #0A192F;
    }

    /* 图像样式 */
    .image-gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin: 20px 0;
    }

    .image-gallery img {
        width: 320px;
        height: 320px;
        object-fit: cover;
        border-radius: 5px;
    }

    /* 提示样式 */
    .hint {
        background: #D500F9;
        color: #ffffff;
        padding: 10px;
        border-radius: 5px;
        text-align: center;
        margin: 20px 0;
        font-weight: bold;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .image-gallery img {
            width: 280px;
            height: 280px;
        }
    }

    @media (max-width: 1200px) {
        .image-gallery img {
            width: 240px;
            height: 240px;
        }
    }

    @media (max-width: 1024px) {
        .content {
            margin-left: 220px;
        }
    }

    @media (max-width: 768px) {
        .navbar {
            width: 100%;
            height: auto;
            position: relative;
        }

        .navbar ul {
            display: flex;
            justify-content: space-around;
        }

        .content {
            margin-left: 0;
        }

        .image-gallery {
            justify-content: center;
        }

        .image-gallery img {
            width: 200px;
            height: 200px;
        }
    }

    @media (max-width: 480px) {
        .navbar a {
            font-size: 16px;
        }

        .image-gallery img {
            width: 160px;
            height: 160px;
        }
    }

    @media (max-width: 320px) {
        .navbar a {
            font-size: 14px;
        }

        .image-gallery img {
            width: 140px;
            height: 140px;
        }
    }

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

    .background-animation {
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
        position: fixed;
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
        z-index: -1;
    }

    /* 卡片式模块 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid #64B5F6;
        border-radius: 8px;
        padding: 20px;
        margin-bottom: 20px;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
        transform: scale(1.05);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    }

    /* 按钮样式 */
    .button {
        display: inline-block;
        padding: 10px 20px;
        background: #D500F9;
        color: #ffffff;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: background 0.3s ease, transform 0.3s ease;
        text-align: center;
    }

    .button:hover {
        background: #64B5F6;
        transform: scale(1.1);
    }

    /* 数据可视化图表 */
    .chart {
        width: 100%;
        height: 300px;
        background: #1E2749;
        border-radius: 5px;
        margin-bottom: 20px;
        position: relative;
    }

    /* 内联提示 */
    .inline-hint {
        background: #FFC107;
        color: #0A192F;
        padding: 5px 10px;
        border-radius: 3px;
        font-size: 14px;
    }