/* 全局样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #e6f7ff; /* 浅蓝色背景 */
  }
  
  /* 导航栏样式 */
  nav {
    background-color: #007bff; /* 蓝色导航栏 */
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
  }
  
  nav .logo {
    font-size: 24px;
    font-weight: bold;
  }
  
  nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
  }
  
  nav ul li {
    margin: 0 10px;
  }
  
  nav ul li a {
    color: white;
    text-decoration: none;
    padding: 10px;
    display: block;
  }
  
  nav ul li a:hover {
    background-color: #0056b3;
  }
  
  .menu-toggle {
    display: none;
    cursor: pointer;
  }
  
  /* 英雄区域样式 */
  .hero {
    background-color: #007bff; /* 蓝色背景 */
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
  }
  
  .hero-content {
    max-width: 600px;
  }
  
  .hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
  }
  
  .hero p {
    font-size: 20px;
    margin-bottom: 30px;
  }
  
  .btn {
    background-color: white;
    color: #007bff;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
  }
  
  .btn:hover {
    background-color: #e6e6e6;
  }
  
  /* 公司介绍样式 */
  #company {
    padding: 50px 20px;
    text-align: center;
    background-color: white;
  }
  
  /* 产品介绍样式 */
  #products {
    padding: 50px 20px;
    text-align: center;
  }
  
  .product-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .product {
    width: 300px;
    background-color: white;
    border: 1px solid #ccc;
    padding: 20px;
    margin: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  
  .product i {
    font-size: 48px;
    color: #007bff;
    margin-bottom: 20px;
  }
  
  .product h3 {
    font-size: 24px;
    margin-bottom: 10px;
  }
  
  .product p {
    font-size: 16px;
  }
  
  /* 解决方案样式 */
  #solutions {
    padding: 50px 20px;
    text-align: center;
    background-color: white;
  }
  
  .solution-list {
    list-style-type: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .solution-list li {
    width: 300px;
    margin: 10px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
  }
  
  .solution-list li i {
    margin-right: 10px;
    color: #007bff;
  }
  
  /* 联系我们样式 */
  #contact {
    padding: 50px 20px;
    text-align: center;
  }
  
  #contact form {
    max-width: 600px;
    margin: 0 auto;
  }
  
  .form-group {
    margin-bottom: 20px;
    text-align: left;
  }
  
  .form-group label {
    display: block;
    margin-bottom: 5px;
  }
  
  .form-group input,
  .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
  }
  
  /* 页脚样式 */
  footer {
    background-color: #007bff;
    color: white;
    text-align: center;
    padding: 20px;
  }
  
  .social-links {
    margin-top: 10px;
  }
  
  .social-links a {
    color: white;
    margin: 0 10px;
    font-size: 24px;
  }
  
  /* 响应式设计 */
  @media (max-width: 768px) {
    nav ul {
      display: none;
      flex-direction: column;
      position: absolute;
      top: 60px;
      left: 0;
      width: 100%;
      background-color: #007bff;
    }
  
    nav ul.active {
      display: flex;
    }
  
    nav ul li {
      margin: 0;
    }
  
    nav ul li a {
      text-align: center;
    }
  
    .menu-toggle {
      display: block;
    }
  }