/* 基础样式重置 */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  /* 全局字体与颜色 */
  body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #ffffff;
    line-height: 1.6;
    padding: 20px;
  }

  h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    color: #ff7e00;
    margin-bottom: 15px;
  }

  p {
    margin-bottom: 15px;
  }

  a {
    color: #ff7e00;
    text-decoration: none;
    transition: color 0.3s ease;
  }

  a:hover {
    color: #ff9a2e;
  }

  /* 布局容器 */
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
  }

  /* 头部导航 */
  header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    background: rgba(30, 60, 114, 0.8);
    z-index: 1000;
  }

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

  nav ul {
    display: flex;
    list-style: none;
  }

  nav ul li {
    margin-left: 20px;
  }

  nav ul li a {
    font-size: 16px;
    font-weight: 500;
  }

  /* 主视觉区 */
  .hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: radial-gradient(circle, rgba(255,87,34,0.3), transparent);
    animation: aurora-move 15s linear infinite;
    padding-top: 80px;
  }

  .hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
  }

  .hero p {
    font-size: 20px;
    max-width: 600px;
    margin: 0 auto 30px;
  }

  .hero .btn {
    background: #ff7e00;
    padding: 10px 30px;
    border: none;
    border-radius: 25px;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
  }

  .hero .btn:hover {
    background: #ff9a2e;
    transform: scale(1.05);
  }

  /* 关于我们 */
  .about, .features, .cases, .example {
    padding: 80px 0;
  }

  .about {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
  }

  .features, .cases, .example {
    background: rgba(30, 60, 114, 0.8);
    border-radius: 10px;
  }

  .section-title {
    text-align: center;
    margin-bottom: 40px;
    color: #ff7e00;
  }

  .section-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .section-content .text, .section-content .image {
    flex: 1 1 45%;
    margin-bottom: 20px;
  }

  .section-content .image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
  }

  /* 示例展示 */
  .example {
    background: linear-gradient(135deg, #2a5298, #1e3c72);
  }

  .example article {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 10px;
  }

  .example pre {
    background: #333;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    margin-bottom: 15px;
  }

  .example code {
    color: #ff7e00;
  }

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

  table, th, td {
    border: 1px solid #ff7e00;
  }

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

  th {
    background: #ff7e00;
    color: #fff;
  }

  /* 底部 */
  footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    background: rgba(30, 60, 114, 0.8);
    border-radius: 10px;
  }

  /* 动画 */
  @keyframes aurora-move {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }

  /* 响应式设计 */
  @media (max-width: 1440px) {
    .hero h1 {
      font-size: 40px;
    }
    .hero p {
      font-size: 18px;
    }
  }

  @media (max-width: 1200px) {
    .section-content {
      flex-direction: column;
      align-items: center;
    }
    .section-content .text, .section-content .image {
      flex: 1 1 100%;
    }
  }

  @media (max-width: 1024px) {
    header {
      flex-direction: column;
    }
    nav ul {
      flex-direction: column;
      align-items: center;
    }
    nav ul li {
      margin: 10px 0;
    }
  }

  @media (max-width: 768px) {
    .hero h1 {
      font-size: 32px;
    }
    .hero p {
      font-size: 16px;
    }
  }

  @media (max-width: 480px) {
    .hero h1 {
      font-size: 24px;
    }
    .hero p {
      font-size: 14px;
    }
    nav ul li {
      margin: 5px 0;
    }
  }

  @media (max-width: 320px) {
    .hero h1 {
      font-size: 20px;
    }
    .hero p {
      font-size: 12px;
    }
  }