/* 全局样式 */
    body {
        margin: 0;
        font-family: 'Montserrat', sans-serif;
        background: linear-gradient(135deg, #0A2F5A, #4DA6FF);
        color: #FFFFFF;
        overflow-x: hidden;
    }
    
    a {
        color: #32CD32;
        text-decoration: none;
    }
    
    a[rel="nofollow"] {
        pointer-events: none;
    }

    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(10, 47, 90, 0.8);
        display: flex;
        justify-content: space-between;
        padding: 20px 50px;
        z-index: 1000;
    }
    
    .navbar a {
        margin: 0 15px;
        font-size: 16px;
        font-weight: bold;
    }

    /* 英雄区域 */
    .hero {
        height: 100vh;
        background: url('https://images.gptkong.com/demo/sample1.png') center center / cover no-repeat;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        text-align: center;
        animation: fadeIn 2s ease-in-out;
    }
    
    .hero h1 {
        font-size: 48px;
        margin-bottom: 20px;
        background: linear-gradient(90deg, #32CD32, #00CED1);
        -webkit-background-clip: text;
        color: transparent;
    }
    
    .hero p {
        font-size: 20px;
        max-width: 600px;
        margin-bottom: 40px;
    }
    
    .hero button {
        background-color: #32CD32;
        border: none;
        padding: 15px 30px;
        font-size: 18px;
        cursor: pointer;
        border-radius: 5px;
        transition: background-color 0.3s;
    }
    
    .hero button:hover {
        background-color: #28a745;
    }

    /* 模块样式 */
    .section {
        padding: 100px 50px;
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        background: linear-gradient(135deg, #0A2F5A, #4DA6FF);
    }
    
    .section:nth-child(even) {
        background: linear-gradient(135deg, #4DA6FF, #0A2F5A);
    }
    
    .section h2 {
        font-size: 36px;
        margin-bottom: 20px;
    }
    
    .section p {
        font-size: 18px;
        max-width: 800px;
        text-align: center;
        margin-bottom: 40px;
    }
    
    .section img {
        width: 320px;
        height: 320px;
        object-fit: cover;
        margin: 10px;
        border-radius: 10px;
    }
    
    .modules {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .module {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        margin: 10px;
        border-radius: 10px;
        width: 300px;
        text-align: center;
        transition: transform 0.3s;
    }
    
    .module:hover {
        transform: scale(1.05);
    }

    /* 示例文章样式 */
    article {
        background: #FFFFFF;
        color: #000000;
        padding: 50px;
        border-radius: 10px;
        max-width: 1200px;
        margin: 50px auto;
        box-shadow: 0 0 20px rgba(0,0,0,0.1);
    }
    
    article h2, article h3, article h4 {
        color: #0A2F5A;
    }
    
    article pre {
        background: #f4f4f4;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }
    
    article table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }
    
    article table, article th, article td {
        border: 1px solid #ddd;
    }
    
    article th, article td {
        padding: 12px;
        text-align: left;
    }

    /* 回到顶部按钮 */
    .back-to-top {
        position: fixed;
        bottom: 30px;
        right: 30px;
        background-color: #32CD32;
        color: #fff;
        padding: 10px 15px;
        border-radius: 50%;
        cursor: pointer;
        display: none;
        z-index: 1000;
        transition: background-color 0.3s;
    }
    
    .back-to-top:hover {
        background-color: #28a745;
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        .navbar {
            padding: 10px 20px;
        }
        
        .hero h1 {
            font-size: 32px;
        }
        
        .hero p {
            font-size: 16px;
            max-width: 90%;
        }
        
        .hero button {
            padding: 10px 20px;
            font-size: 16px;
        }
        
        .section {
            padding: 50px 20px;
        }
        
        .section h2 {
            font-size: 28px;
        }
        
        .section p {
            font-size: 16px;
        }
        
        .module {
            width: 90%;
        }

        article {
            padding: 20px;
        }

        article h2 {
            font-size: 28px;
        }

        article p {
            font-size: 16px;
        }
    }

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