/* 导入字体 */
  @import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&family=Montserrat:wght@400;700&display=swap');

  /* 全局样式 */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    overflow-x: hidden;
  }

  a {
    color: #39ff14;
    text-decoration: none;
    rel: nofollow;
  }

  a:hover {
    color: #ffffff;
  }

  /* 头部样式 */
  header {
    width: 100%;
    padding: 20px 40px;
    background: rgba(0, 0, 0, 0.6);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  header h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 24px;
    color: #39ff14;
  }

  /* 导航栏样式 */
  nav {
    display: flex;
    gap: 20px;
  }

  nav a {
    font-size: 16px;
    transition: color 0.3s ease;
  }

  /* 主内容区域 */
  .container {
    padding: 100px 40px 40px 40px;
    max-width: 1200px;
    margin: 0 auto;
  }

  /* 模块化布局 */
  .grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
  }

  .module {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.3);
    transition: transform 0.3s ease, background 0.3s ease;
  }

  .module:hover {
    transform: translateY(-10px);
    background: rgba(57, 255, 20, 0.2);
  }

  .module h3 {
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 10px;
    color: #39ff14;
  }

  .module p {
    font-size: 14px;
    color: #ffffff;
  }

  /* 示例数据展示 */
  .sample-data {
    margin-top: 40px;
    padding: 20px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 10px;
    position: relative;
  }

  .sample-data::before {
    content: '示例数据展示';
    position: absolute;
    top: -20px;
    left: 20px;
    background: #2a5298;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 14px;
    color: #ffffff;
  }

  .sample-data article {
    margin-top: 10px;
  }

  .sample-data h2, .sample-data h3 {
    color: #39ff14;
    font-family: 'Montserrat', sans-serif;
  }

  .sample-data p, .sample-data li {
    color: #ffffff;
    font-size: 14px;
  }

  .sample-data pre {
    background: #1e1e1e;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Roboto', monospace;
    color: #39ff14;
    margin: 10px 0;
  }

  .sample-data code {
    background: #2a5298;
    padding: 2px 4px;
    border-radius: 3px;
    color: #ffffff;
  }

  /* 图片样式 */
  .images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 10px;
    margin-top: 20px;
  }

  .images-grid img {
    width: 100%;
    border-radius: 5px;
  }

  /* 动画粒子 */
  .particle {
    position: absolute;
    width: 8px;
    height: 8px;
    background-color: #39ff14;
    border-radius: 50%;
    animation: move 10s linear infinite;
    top: 50%;
    left: 50%;
  }

  @keyframes move {
    from {
      transform: translate(-50%, -50%) scale(0);
      opacity: 0;
    }
    to {
      transform: translate(-50%, -50%) scale(1);
      opacity: 1;
    }
  }

  /* 提示文字 */
  .hint {
    text-align: center;
    margin-top: 40px;
    font-size: 18px;
    color: #ffffff;
    animation: fadeIn 2s ease-in-out;
  }

  @keyframes fadeIn {
    from { opacity: 0;}
    to { opacity: 1;}
  }

  /* 响应式设计 */
  @media (max-width: 1440px) {
    header h1 {
      font-size: 22px;
    }
    nav a {
      font-size: 15px;
    }
    .container {
      padding: 90px 30px 30px 30px;
    }
  }

  @media (max-width: 1200px) {
    header h1 {
      font-size: 20px;
    }
    nav a {
      font-size: 14px;
    }
    .container {
      padding: 80px 20px 20px 20px;
    }
  }

  @media (max-width: 1024px) {
    .grid-container {
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    .sample-data pre {
      font-size: 12px;
    }
  }

  @media (max-width: 768px) {
    header {
      padding: 15px 20px;
    }
    header h1 {
      font-size: 18px;
    }
    nav {
      display: none;
    }
    .nav-mobile {
      display: flex;
      flex-direction: column;
      gap: 10px;
      position: absolute;
      top: 60px;
      right: 20px;
      background: rgba(0, 0, 0, 0.8);
      padding: 10px;
      border-radius: 5px;
    }
    .nav-mobile a {
      font-size: 14px;
    }
    .container {
      padding: 70px 15px 15px 15px;
    }
  }

  @media (max-width: 480px) {
    header h1 {
      font-size: 16px;
    }
    nav a {
      font-size: 13px;
    }
    .sample-data pre {
      font-size: 11px;
    }
    .hint {
      font-size: 16px;
    }
  }

  @media (max-width: 320px) {
    header h1 {
      font-size: 14px;
    }
    nav a {
      font-size: 12px;
    }
    .sample-data pre {
      font-size: 10px;
    }
    .hint {
      font-size: 14px;
    }
  }

  /* 3D交互图标 */
  .icon-3d {
    width: 50px;
    height: 50px;
    margin: 10px 0;
    transition: transform 0.3s ease;
  }

  .icon-3d:hover {
    transform: rotate(20deg) scale(1.1);
  }

  /* 动态信息图表 */
  .info-chart {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #2a5298, #1e3c72);
    border-radius: 10px;
    position: relative;
    overflow: hidden;
  }

  .info-chart::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample5.png') no-repeat center/cover;
    opacity: 0.3;
  }

  /* 加载画面 */
  .loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #121212;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    animation: fadeOut 3s forwards;
  }

  @keyframes fadeOut {
    to { opacity: 0; visibility: hidden;}
  }