/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', 'Helvetica', sans-serif;
        line-height: 1.6;
        color: #ffffff;
        background: radial-gradient(circle, rgba(0,0,139,1) 0%, rgba(25,25,112,1) 70%, rgba(0,0,0,1) 100%);
        overflow-x: hidden;
    }
    
    /* 头部导航栏 */
    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 40px;
        background: rgba(0, 0, 0, 0.7);
        position: fixed;
        width: 100%;
        top: 0;
        z-index: 1000;
    }

    .navbar a {
        color: #FFA500;
        text-decoration: none;
        margin: 0 15px;
        font-weight: bold;
        transition: color 0.3s ease;
    }

    .navbar a:hover {
        color: #00FF7F;
    }

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

    /* 标题样式 */
    h1, h2, h3 {
        font-family: 'Helvetica', sans-serif;
        color: #FFA500;
        margin-bottom: 20px;
    }

    h1 {
        font-size: 2.5em;
        text-align: center;
        margin-top: 60px;
    }

    h2 {
        font-size: 2em;
        border-bottom: 2px solid #00FF7F;
        padding-bottom: 10px;
    }

    h3 {
        font-size: 1.5em;
        color: #00FFFF;
        margin-top: 30px;
    }

    /* 段落样式 */
    p {
        font-size: 1em;
        margin-bottom: 20px;
        color: #FFFFFF;
    }

    /* 强调文本 */
    b {
        color: #FF69B4;
    }

    /* 按钮样式 */
    .highlight-button {
        background: linear-gradient(45deg, #FF1493, #00BFFF);
        color: #000000;
        border: none;
        padding: 15px 30px;
        border-radius: 50px;
        cursor: pointer;
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
    }

    .highlight-button::after {
        content: '';
        position: absolute;
        width: 300%;
        height: 300%;
        background: rgba(255, 255, 255, 0.15);
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%) rotate(45deg);
        transition: all 0.75s ease;
    }

    .highlight-button:hover::after {
        width: 0;
        height: 0;
        opacity: 0;
    }

    /* 网格布局 */
    .grid-container {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        justify-content: space-between;
    }

    .grid-item {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        flex: 1 1 calc(33.333% - 40px);
        box-sizing: border-box;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .grid-item:hover {
        transform: scale(1.05);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    }

    /* 代码块样式 */
    pre {
        background: #2d2d2d;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    code {
        color: #00FF7F;
        font-family: 'Courier New', Courier, monospace;
        font-size: 0.9em;
    }

    /* 图片样式 */
    .image-gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 20px;
    }

    .image-gallery img {
        width: 100%;
        max-width: 320px;
        border-radius: 10px;
    }

    /* 示范展示区 */
    .demo-section {
        background: rgba(0, 0, 0, 0.8);
        padding: 40px;
        border-radius: 10px;
        margin-top: 40px;
    }

    .demo-section h2 {
        color: #FFD700;
        text-align: center;
        margin-bottom: 30px;
    }

    /* 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: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
        background-size: 400% 400%;
        animation: aurora-move 15s linear infinite;
        padding: 50px 0;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .grid-item {
            flex: 1 1 calc(33.333% - 40px);
        }
    }

    @media (max-width: 1200px) {
        .grid-item {
            flex: 1 1 calc(40% - 40px);
        }
    }

    @media (max-width: 1024px) {
        .grid-item {
            flex: 1 1 calc(50% - 40px);
        }
    }

    @media (max-width: 768px) {
        .grid-item {
            flex: 1 1 100%;
        }

        .navbar {
            flex-direction: column;
        }

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

    @media (max-width: 480px) {
        h1 {
            font-size: 2em;
        }

        h2 {
            font-size: 1.5em;
        }

        h3 {
            font-size: 1.2em;
        }

        .highlight-button {
            padding: 10px 20px;
            font-size: 0.9em;
        }
    }

    @media (max-width: 320px) {
        .container {
            padding: 10px;
            margin: 80px auto 20px;
        }

        .image-gallery {
            flex-direction: column;
            align-items: center;
        }
    }

    /* 提示信息 */
    .reference-note {
        text-align: center;
        font-size: 1em;
        color: #FF69B4;
        margin-top: 20px;
    }