/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Open Sans', sans-serif;
        background: linear-gradient(135deg, #032B44, #000000);
        color: #ffffff;
        overflow-x: hidden;
    }

    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background-color: rgba(3, 43, 68, 0.9);
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 40px;
        z-index: 1000;
    }

    .navbar .logo {
        font-family: 'Roboto Bold', sans-serif;
        font-size: 24px;
        color: #AEB8BE;
    }

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

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

    .navbar ul li a {
        color: #AEB8BE;
        text-decoration: none;
        font-size: 16px;
        transition: color 0.3s;
    }

    .navbar ul li a:hover {
        color: #4CAF50;
    }

    /* 主页大图 */
    .hero {
        height: 100vh;
        background: url('https://images.gptkong.com/demo/sample12.png') center center/cover no-repeat;
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative;
        padding-top: 80px;
    }

    .hero::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(3, 43, 68, 0.6);
    }

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

    .hero-content h1 {
        font-family: 'Roboto Bold', sans-serif;
        font-size: 48px;
        color: #FFFFFF;
        margin-bottom: 20px;
        animation: fadeIn 2s ease-in-out;
    }

    .hero-content p {
        font-size: 18px;
        color: #AEB8BE;
        max-width: 600px;
        margin: 0 auto 30px;
        animation: fadeIn 2s ease-in-out 0.5s;
    }

    .hero-content .cta-button {
        padding: 15px 30px;
        background-color: #4CAF50;
        color: #ffffff;
        border: none;
        border-radius: 5px;
        font-size: 16px;
        cursor: pointer;
        transition: background-color 0.3s, transform 0.3s;
        animation: fadeIn 2s ease-in-out 1s;
    }

    .hero-content .cta-button:hover {
        background-color: #45a049;
        transform: scale(1.05);
    }

    /* 主要内容区 */
    .main {
        padding: 60px 40px;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .main h2 {
        font-family: 'Roboto Bold', sans-serif;
        font-size: 36px;
        color: #AEB8BE;
        margin-bottom: 40px;
        text-align: center;
    }

    .article {
        max-width: 1200px;
        width: 100%;
        background: rgba(10, 32, 55, 0.8);
        padding: 40px;
        border-radius: 10px;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
        margin-bottom: 60px;
    }

    .article h2, .article h3, .article h4 {
        color: #4CAF50;
    }

    .article p, .article ul, .article table, .article pre {
        color: #AEB8BE;
        line-height: 1.6;
    }

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

    .article table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }

    .article table, .article th, .article td {
        border: 1px solid #4CAF50;
    }

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

    .article pre {
        background: #1E2A38;
        padding: 20px;
        border-radius: 5px;
        overflow-x: auto;
    }

    .sample-data {
        max-width: 1200px;
        width: 100%;
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 20px;
        margin-bottom: 60px;
    }

    .card {
        background: #1E2A38;
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .card:hover {
        transform: scale(1.05);
        box-shadow: 0 8px 16px rgba(0,0,0,0.3);
    }

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

    .card p {
        color: #AEB8BE;
        margin: 5px 0;
    }

    .card img {
        width: 100%;
        height: auto;
        border-radius: 5px;
        margin-top: 15px;
    }

    /* 提示信息 */
    .note {
        text-align: center;
        font-size: 16px;
        color: #FFC107;
        margin-bottom: 20px;
    }

    /* 动画效果 */
    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .hero-content h1 {
            font-size: 42px;
        }

        .article {
            padding: 30px;
        }
    }

    @media (max-width: 1200px) {
        .navbar {
            padding: 15px 30px;
        }

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

        .main {
            padding: 40px 20px;
        }
    }

    @media (max-width: 1024px) {
        .sample-data {
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        }

        .article h2 {
            font-size: 28px;
        }
    }

    @media (max-width: 768px) {
        .navbar ul {
            display: none;
        }

        .navbar .hamburger {
            display: block;
            cursor: pointer;
        }

        .sample-data {
            grid-template-columns: 1fr;
        }

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

    @media (max-width: 480px) {
        .hero-content h1 {
            font-size: 24px;
        }

        .article h2 {
            font-size: 24px;
        }

        .navbar {
            padding: 10px 20px;
        }
    }

    @media (max-width: 320px) {
        .hero-content h1 {
            font-size: 20px;
        }

        .article {
            padding: 20px;
        }
    }