/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Open Sans', sans-serif;
        background: linear-gradient(135deg, #1E272E, #6C5CE7);
        color: #FFFFFF;
        line-height: 1.6;
    }

    h1, h2, h3, h4, h5, h6 {
        font-family: 'Roboto Bold', sans-serif;
        margin-bottom: 20px;
        color: #FFFFFF;
    }

    p {
        margin-bottom: 15px;
        padding: 0 10px;
    }

    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(30, 39, 46, 0.9);
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 30px;
        z-index: 1000;
    }

    .navbar .logo {
        font-size: 24px;
        font-weight: bold;
    }

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

    .navbar ul li {
        margin-left: 20px;
    }

    .navbar ul li a {
        text-decoration: none;
        color: #FFFFFF;
        transition: color 0.3s;
    }

    .navbar ul li a:hover {
        color: #FFC300;
    }

    /* 主内容区 */
    .hero {
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        background: url('https://images.gptkong.com/demo/sample1.png') center center/cover no-repeat;
        position: relative;
    }

    .hero::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(30, 39, 46, 0.6);
    }

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

    .hero-content h1 {
        font-size: 48px;
        margin-bottom: 20px;
        animation: fadeInDown 1s ease-out;
    }

    .hero-content p {
        font-size: 18px;
        margin-bottom: 30px;
        animation: fadeInUp 1s ease-out;
    }

    .hero-content .cta-button {
        background: linear-gradient(45deg, #FFC300, #FF5733);
        border: none;
        padding: 15px 30px;
        font-size: 16px;
        color: #1E272E;
        cursor: pointer;
        border-radius: 25px;
        transition: transform 0.3s, background 0.3s;
    }

    .hero-content .cta-button:hover {
        transform: scale(1.1);
        background: linear-gradient(45deg, #FF5733, #FFC300);
    }

    /* 服务模块 */
    .services {
        padding: 60px 20px;
        background: linear-gradient(135deg, #2ECC71, #6C5CE7);
    }

    .services .container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        max-width: 1200px;
        margin: 0 auto;
    }

    .services .card {
        background: #FFFFFF;
        color: #1E272E;
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        text-align: center;
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .services .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    }

    .services .card img {
        width: 80px;
        height: 80px;
        margin-bottom: 15px;
    }

    .services .card h3 {
        margin-bottom: 10px;
    }

    /* 示例数据展示 */
    .sample-data {
        padding: 60px 20px;
        background: linear-gradient(135deg, #1E272E, #2ECC71);
    }

    .sample-data .container {
        max-width: 1000px;
        margin: 0 auto;
    }

    .sample-data article {
        background: rgba(255, 255, 255, 0.1);
        padding: 30px;
        border-radius: 10px;
    }

    .sample-data pre {
        background: #2D3436;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    .sample-data code {
        color: #00B894;
        font-family: 'Courier New', Courier, monospace;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .hero-content h1 {
            font-size: 40px;
        }
    }

    @media (max-width: 1200px) {
        .navbar ul li {
            margin-left: 15px;
        }

        .hero-content h1 {
            font-size: 36px;
        }
    }

    @media (max-width: 1024px) {
        .services .container {
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        }
    }

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

        .navbar ul {
            flex-direction: column;
            width: 100%;
            display: none;
        }

        .navbar ul.active {
            display: flex;
        }

        .navbar .menu-toggle {
            display: block;
            cursor: pointer;
            color: #FFFFFF;
            font-size: 24px;
        }
    }

    @media (max-width: 480px) {
        .hero-content h1 {
            font-size: 28px;
        }

        .hero-content p {
            font-size: 16px;
        }

        .services .card img {
            width: 60px;
            height: 60px;
        }
    }

    @media (max-width: 320px) {
        .hero-content h1 {
            font-size: 24px;
        }

        .hero-content p {
            font-size: 14px;
        }
    }

    /* 动画效果 */
    @keyframes fadeInDown {
        from { opacity: 0; transform: translateY(-20px); }
        to { opacity: 1; transform: translateY(0); }
    }

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

    /* 按钮样式 */
    .button {
        background: linear-gradient(45deg, #6C5CE7, #2ECC71);
        border: none;
        padding: 10px 20px;
        color: #FFFFFF;
        cursor: pointer;
        border-radius: 20px;
        transition: background 0.3s, transform 0.3s;
    }

    .button:hover {
        background: linear-gradient(45deg, #2ECC71, #6C5CE7);
        transform: scale(1.05);
    }

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

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

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

    th {
        background: #6C5CE7;
    }

    /* 图片样式 */
    img {
        max-width: 100%;
        height: auto;
        border-radius: 10px;
    }