/* CSS Reset */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    /* 根元素字体 */
    html {
        font-size: 16px;
        scroll-behavior: smooth;
    }

    body {
        font-family: 'Roboto', 'Open Sans', sans-serif;
        background: radial-gradient(circle, rgba(0, 38, 77, 1) 0%, rgba(30, 30, 30, 1) 100%);
        color: #ffffff;
        display: flex;
        min-height: 100vh;
        overflow-x: hidden;
    }

    /* 导航栏样式 */
    nav {
        position: fixed;
        left: 0;
        top: 0;
        width: 250px;
        height: 100%;
        background: linear-gradient(135deg, #001f3f, #0a0a0a);
        padding: 20px;
        overflow-y: auto;
    }

    nav h1 {
        font-size: 1.5rem;
        margin-bottom: 30px;
        text-align: center;
    }

    nav ul {
        list-style: none;
    }

    nav ul li {
        margin-bottom: 20px;
    }

    nav ul li a {
        color: #00ff9f;
        text-decoration: none;
        font-size: 1.1rem;
        transition: color 0.3s ease-in-out;
    }

    nav ul li a:hover {
        color: #ffffff;
    }

    /* 主内容区域样式 */
    .content {
        margin-left: 270px;
        padding: 40px;
        width: calc(100% - 270px);
        background: linear-gradient(135deg, #1e1e1e, #00264d);
        animation: aurora-move 15s linear infinite;
    }

    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    /* 标题样式 */
    .content h2 {
        font-size: 2.5rem;
        margin-bottom: 20px;
        text-align: center;
        color: #00ff9f;
    }

    /* 文章样式 */
    article {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    }

    article h2 {
        font-size: 2rem;
        margin-bottom: 15px;
        color: #00ff9f;
    }

    article h3 {
        font-size: 1.5rem;
        margin-top: 25px;
        margin-bottom: 10px;
        color: #00ff9f;
    }

    article p {
        font-size: 1rem;
        line-height: 1.8;
        margin-bottom: 15px;
    }

    article pre {
        background: #0a0a0a;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 15px;
    }

    article code {
        color: #00ff9f;
        font-family: 'Courier New', Courier, monospace;
    }

    /* 模块化卡片布局 */
    .modules {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        margin-top: 30px;
    }

    .card {
        flex: 1 1 calc(33.333% - 20px);
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 8px;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 12px rgba(0, 0, 0, 0.5);
    }

    .card h4 {
        font-size: 1.2rem;
        margin-bottom: 10px;
        color: #00ff9f;
    }

    .card p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .card {
            flex: 1 1 calc(33.333% - 20px);
        }
    }

    @media (max-width: 1200px) {
        .card {
            flex: 1 1 calc(50% - 20px);
        }
    }

    @media (max-width: 1024px) {
        .card {
            flex: 1 1 calc(50% - 20px);
        }
        .content {
            margin-left: 220px;
            width: calc(100% - 240px);
        }
    }

    @media (max-width: 768px) {
        nav {
            width: 200px;
        }
        .content {
            margin-left: 220px;
            width: calc(100% - 220px);
            padding: 20px;
        }
        .card {
            flex: 1 1 100%;
        }
    }

    @media (max-width: 480px) {
        nav {
            display: none;
        }
        .content {
            margin-left: 0;
            width: 100%;
            padding: 15px;
        }
        .card {
            flex: 1 1 100%;
        }
        .content h2 {
            font-size: 2rem;
        }
    }

    @media (max-width: 320px) {
        .content h2 {
            font-size: 1.5rem;
        }
        article h2 {
            font-size: 1.5rem;
        }
        article h3 {
            font-size: 1.2rem;
        }
        article p, .card p {
            font-size: 0.8rem;
        }
    }

    /* 按钮样式 */
    .btn {
        display: inline-block;
        padding: 10px 20px;
        background: #00ff9f;
        color: #000000;
        text-decoration: none;
        border-radius: 5px;
        transition: background 0.3s ease, box-shadow 0.3s ease;
    }

    .btn:hover {
        background: #00cc7a;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    }

    /* 图片样式 */
    .images-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 10px;
        margin-top: 20px;
    }

    .images-grid img {
        width: 100%;
        height: auto;
        border-radius: 5px;
    }

    /* 提示信息 */
    .reference-note {
        margin: 20px 0;
        padding: 15px;
        background: rgba(255, 255, 255, 0.1);
        border-left: 5px solid #00ff9f;
        font-size: 0.9rem;
    }

    /* 卡片动画 */
    .card {
        animation: fadeIn 1s ease-in-out;
    }

    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(20px); }
        to { opacity: 1; transform: translateY(0); }
    }

    /* 代码块样式优化 */
    pre {
        background: #0a0a0a;
        color: #00ff9f;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

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