/* 全局样式重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    /* 根元素字体设置 */
    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #F5F5F5, #E0E0E0);
        color: #0A1F44;
        line-height: 1.6;
    }

    /* 导航栏样式 */
    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background: rgba(10, 31, 68, 0.9);
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 40px;
        z-index: 1000;
        transition: background 0.3s ease;
    }

    .navbar a {
        color: #FFFFFF;
        text-decoration: none;
        margin-left: 20px;
        font-family: 'Montserrat', sans-serif;
        font-weight: bold;
    }

    .navbar a:hover {
        color: #6C5CE7;
        transition: color 0.3s ease;
    }

    /* 侧边栏样式 */
    .sidebar {
        position: fixed;
        right: 0;
        top: 0;
        width: 200px;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        padding: 60px 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
        transition: transform 0.3s ease;
    }

    .sidebar a {
        color: #FFFFFF;
        text-decoration: none;
        margin: 15px 0;
        font-size: 18px;
        text-align: center;
    }

    .sidebar a:hover {
        color: #3498DB;
        transition: color 0.3s ease;
    }

    /* 主要内容容器 */
    .container {
        max-width: 1200px;
        margin: 100px auto 50px auto;
        padding: 20px;
    }

    /* 文章样式 */
    article {
        background: rgba(255, 255, 255, 0.8);
        padding: 40px;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }

    article h2, article h3, article h4 {
        font-family: 'Montserrat', sans-serif;
        color: #0A1F44;
    }

    article h2 {
        font-size: 2.5em;
        margin-bottom: 20px;
    }

    article h3 {
        font-size: 1.8em;
        margin-top: 30px;
        margin-bottom: 15px;
    }

    article h4 {
        font-size: 1.5em;
        margin-top: 25px;
        margin-bottom: 10px;
    }

    article p {
        margin-bottom: 15px;
        font-size: 1em;
    }

    article pre {
        background: #2C3A47;
        color: #ECF0F1;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

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

    article ul {
        list-style: disc inside;
        margin-bottom: 20px;
    }

    /* 按钮样式 */
    .btn {
        display: inline-block;
        padding: 10px 20px;
        background: #6C5CE7;
        color: #FFFFFF;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        font-family: 'Montserrat', sans-serif;
        transition: background 0.3s ease, transform 0.3s ease;
    }

    .btn:hover {
        background: #3498DB;
        transform: scale(1.05);
    }

    /* 3D对象样式 */
    .three-d-object {
        width: 200px;
        height: 200px;
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: rotate 15s linear infinite;
        margin: 20px auto;
    }

    @keyframes rotate {
        from { transform: rotateY(0deg); }
        to { transform: rotateY(360deg); }
    }

    /* 响应式网格布局 */
    .grid-container {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
        margin-top: 30px;
    }

    .grid-item {
        background: #FFFFFF;
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        text-align: center;
    }

    .grid-item:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 12px rgba(0,0,0,0.2);
    }

    .grid-item img {
        width: 100%;
        height: auto;
        border-radius: 5px;
        margin-bottom: 15px;
    }

    .grid-item h4 {
        margin-bottom: 10px;
        font-size: 1.2em;
        color: #6C5CE7;
    }

    /* 卡片悬浮放大效果 */
    .card {
        position: relative;
        overflow: hidden;
        border-radius: 10px;
    }

    .card img {
        width: 100%;
        transition: transform 0.5s ease;
    }

    .card:hover img {
        transform: scale(1.1);
    }

    /* 固定顶部栏和动态侧边栏 */
    .fixed-top {
        position: fixed;
        top: 0;
        width: 100%;
        z-index: 999;
    }

    .dynamic-sidebar {
        position: fixed;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
        background: rgba(0,0,0,0.5);
        padding: 10px;
        border-radius: 10px 0 0 10px;
    }

    .dynamic-sidebar a {
        display: block;
        color: #FFFFFF;
        margin: 10px 0;
        text-align: center;
    }

    /* 按钮和关键区域高亮颜色 */
    .highlight-purple {
        color: #6C5CE7;
    }

    .highlight-blue {
        color: #3498DB;
    }

    /* 抽象几何体和光线追踪效果 */
    .abstract-geometry {
        width: 100px;
        height: 100px;
        background: #6C5CE7;
        clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        box-shadow: 0 0 20px rgba(108, 92, 231, 0.6);
        margin: 20px auto;
    }

    /* 定制线框风格图标 */
    .icon {
        width: 50px;
        height: 50px;
        border: 2px solid #6C5CE7;
        border-radius: 50%;
        position: relative;
        margin: 0 auto 10px auto;
        transition: background 0.3s ease, transform 0.3s ease;
    }

    .icon::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 20px;
        height: 20px;
        background: #6C5CE7;
        border-radius: 50%;
        transform: translate(-50%, -50%);
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .icon:hover::after {
        opacity: 1;
    }

    /* 提示信息样式 */
    .reference-note {
        text-align: center;
        font-size: 1.2em;
        color: #B78C4C;
        margin: 30px 0;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .container {
            max-width: 1000px;
        }
    }

    @media (max-width: 1200px) {
        .container {
            max-width: 900px;
        }
    }

    @media (max-width: 1024px) {
        .navbar {
            padding: 15px 30px;
        }

        .sidebar {
            width: 150px;
            padding: 50px 15px;
        }

        .grid-container {
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        }
    }

    @media (max-width: 768px) {
        .navbar {
            flex-direction: column;
            align-items: flex-start;
        }

        .navbar a {
            margin: 10px 0;
        }

        .sidebar {
            display: none;
        }

        .grid-container {
            grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        }
    }

    @media (max-width: 480px) {
        .navbar {
            padding: 10px 20px;
        }

        .navbar a {
            margin: 5px 0;
            font-size: 16px;
        }

        .grid-container {
            grid-template-columns: 1fr;
        }

        .reference-note {
            font-size: 1em;
        }
    }

    @media (max-width: 320px) {
        .navbar {
            padding: 8px 15px;
        }

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

        .grid-container {
            grid-template-columns: 1fr;
        }
    }

    /* 防止代码块横向滚动 */
    pre {
        white-space: pre-wrap;
        word-wrap: break-word;
    }