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

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0A2540, #0A2540 50%, #64B5F6 50%, #64B5F6);
        color: #FFFFFF;
        line-height: 1.6;
    }

    h1, h2, h3, h4 {
        font-family: 'Montserrat', sans-serif;
        margin-bottom: 20px;
        color: #FFC107;
    }

    p {
        margin-bottom: 15px;
        color: #FFFFFF;
    }

    .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 50px 0;
    }

    /* 头部大图与标题 */
    .hero {
        background: url('https://images.gptkong.com/demo/sample1.png') center/cover no-repeat;
        height: 400px;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
    }

    .hero::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(10, 37, 64, 0.7);
    }

    .hero-content {
        position: relative;
        text-align: center;
        z-index: 1;
    }

    .hero-content h1 {
        font-size: 48px;
        color: #FFFFFF;
    }

    /* 核心服务介绍 */
    .services {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        margin: 50px 0;
    }

    .service {
        flex: 0 0 30%;
        background: #0A2540;
        padding: 20px;
        margin-bottom: 20px;
        border-radius: 8px;
        transition: transform 0.3s;
    }

    .service:hover {
        transform: translateY(-10px);
    }

    .service h3 {
        color: #FFC107;
        margin-bottom: 10px;
    }

    .service p {
        color: #FFFFFF;
    }

    /* 数据可视化展示 */
    .data-visualization {
        margin: 50px 0;
    }

    .chart {
        background: #0A2540;
        padding: 20px;
        border-radius: 8px;
        margin-bottom: 20px;
    }

    canvas {
        width: 100% !important;
        height: auto !important;
    }

    /* 客户案例分享 */
    .case-studies {
        display: flex;
        flex-direction: column;
        margin: 50px 0;
    }

    .case {
        background: #064789;
        padding: 20px;
        border-radius: 8px;
        margin-bottom: 20px;
    }

    .case h4 {
        color: #FFC107;
        margin-bottom: 10px;
    }

    .case p {
        color: #FFFFFF;
    }

    /* 互动学习模块 */
    .interactive-learning {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        margin: 50px 0;
    }

    .learning-module {
        flex: 0 0 48%;
        background: #0A2540;
        padding: 20px;
        border-radius: 8px;
        margin-bottom: 20px;
        transition: transform 0.3s;
    }

    .learning-module:hover {
        transform: translateY(-10px);
    }

    .learning-module h4 {
        color: #FFC107;
        margin-bottom: 10px;
    }

    .learning-module p {
        color: #FFFFFF;
    }

    /* 底部联系方式 */
    .contact {
        background: #0A2540;
        padding: 30px;
        border-radius: 8px;
        text-align: center;
    }

    .contact h3 {
        color: #FFC107;
        margin-bottom: 20px;
    }

    .contact a {
        color: #64B5F6;
        text-decoration: none;
        margin: 0 10px;
        transition: color 0.3s;
    }

    .contact a:hover {
        color: #FFC107;
    }

    /* 示例展示 */
    .example {
        background: #0A2540;
        padding: 30px;
        border-radius: 8px;
        margin: 50px 0;
    }

    .example h2 {
        color: #FFC107;
        margin-bottom: 20px;
    }

    pre {
        background: #212121;
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        color: #FFC107;
        margin-bottom: 20px;
    }

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

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .container {
            width: 95%;
        }
    }

    @media (max-width: 1200px) {
        .services, .interactive-learning {
            flex-direction: column;
        }

        .service, .learning-module {
            flex: 0 0 100%;
        }
    }

    @media (max-width: 1024px) {
        .hero-content h1 {
            font-size: 36px;
        }
    }

    @media (max-width: 768px) {
        .service, .learning-module {
            flex: 0 0 100%;
        }

        .hero {
            height: 300px;
        }

        .hero-content h1 {
            font-size: 28px;
        }
    }

    @media (max-width: 480px) {
        .hero {
            height: 250px;
        }

        .hero-content h1 {
            font-size: 24px;
        }

        .service, .learning-module {
            padding: 15px;
        }
    }

    @media (max-width: 320px) {
        .hero {
            height: 200px;
        }

        .hero-content h1 {
            font-size: 20px;
        }
    }

    /* 动画效果 */
    .fade-in {
        opacity: 0;
        transition: opacity 1s ease-in-out;
    }

    .fade-in.visible {
        opacity: 1;
    }

    /* 按钮样式 */
    .btn {
        display: inline-block;
        padding: 10px 20px;
        background: #FFC107;
        color: #0A2540;
        border: none;
        border-radius: 4px;
        text-decoration: none;
        transition: background 0.3s;
    }

    .btn:hover {
        background: #FFD54F;
    }

    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    table, th, td {
        border: 1px solid #FFC107;
    }

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

    th {
        background: #212121;
    }

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

    .image-grid img {
        width: 100%;
        max-width: 150px;
        border-radius: 8px;
    }

    /* 提示文字 */
    .hint {
        text-align: center;
        margin: 30px 0;
        font-size: 18px;
        color: #FFC107;
    }