/* 基础样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', sans-serif;
        }
        
        body {
            color: #333;
            line-height: 1.6;
            background-color: #f9f9f9;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航栏样式 */
        header {
            background: linear-gradient(135deg, #2c3e50, #1a2530);
            color: white;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
.logo {
    font-size: 24px;
    font-weight: bold;
    display: flex;
    align-items: center;
}

.logo a {
    text-decoration: none; /* 确保链接没有下划线 */
    color: inherit; /* 继承父元素的颜色，确保链接不变色 */
    transition: transform 0.3s ease; /* 添加平滑的动画效果 */
}

.logo a span {
    color: #4CAF50;
}

.logo a:hover {
    transform: scale(1.1); /* 鼠标悬停时放大10% */
    cursor: pointer; /* 鼠标悬停时显示手型 */
}
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 30px;
        }
        
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        .nav-links a:hover {
            color: #4CAF50;
        }
        
        .cta-button {
            background-color: #4CAF50;
            color: white;
            padding: 10px 25px;
            border: none;
            border-radius: 5px;
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .cta-button:hover {
            background-color: #3e8e41;
        }
        
        /* 英雄区域样式 */
        .hero {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('ai_top.jpg') no-repeat center center/cover;
            color: white;
            padding: 100px 0;
            text-align: center;
        }
        
        .hero h1 {
            font-size: 48px;
            margin-bottom: 20px;
        }
        
        .hero p {
            font-size: 20px;
            max-width: 700px;
            margin: 0 auto 30px;
        }
        
        /* 服务介绍区域 */
        .services {
            padding: 80px 0;
            background-color: white;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title h2 {
            font-size: 36px;
            color: #2c3e50;
            margin-bottom: 15px;
        }
        
        .section-title p {
            color: #777;
            max-width: 700px;
            margin: 0 auto;
        }
        
        .service-cards {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
        }
        
        .service-card {
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            padding: 30px;
            width: 100%;
            max-width: 350px;
            transition: transform 0.3s;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
        }
        
        .service-card h3 {
            color: #2c3e50;
            margin: 20px 0;
        }
        
        .service-icon {
            font-size: 40px;
            color: #4CAF50;
        }
        
        /* 客户案例区域 */
        .case-studies {
            padding: 80px 0;
            background-color: #f2f2f2;
        }
        
        .cases {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
        }
        
        .case {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            max-width: 350px;
        }
        
        .case img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        
        .case-content {
            padding: 20px;
        }
        
        .case h3 {
            color: #2c3e50;
            margin-bottom: 10px;
        }
        
        /* CTA区域 */
        .cta-section {
            background: linear-gradient(135deg, #2c3e50, #4CAF50);
            color: white;
            padding: 80px 0;
            text-align: center;
        }
        
        .cta-section h2 {
            font-size: 36px;
            margin-bottom: 20px;
        }
        
        .cta-section p {
            max-width: 700px;
            margin: 0 auto 30px;
            font-size: 18px;
        }
        
        /* 页脚样式 */
        footer {
            background-color: #1a2530;
            color: white;
            padding: 50px 0 20px;
        }
        
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-bottom: 30px;
        }
        
        .footer-column {
            flex: 1;
            min-width: 250px;
            margin-bottom: 30px;
        }
        
        .footer-column h3 {
            margin-bottom: 20px;
            font-size: 18px;
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 10px;
        }
        
        .footer-column a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-column a:hover {
            color: #4CAF50;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2c3e50;
            color: #aaa;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            
            .hero h1 {
                font-size: 36px;
            }
            
            .hero p {
                font-size: 18px;
            }
        }