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

  body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #000046, #1cb5e0);
    color: #ffffff;
    overflow-x: hidden;
    line-height: 1.6;
  }

  /* 背景星河效果 */
  .background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample12.png') repeat;
    animation: starFlow 100s linear infinite;
    z-index: -1;
    opacity: 0.3;
  }

  @keyframes starFlow {
    from { background-position: 0 0; }
    to { background-position: 1000px 1000px; }
  }

  /* 玻璃拟态卡片 */
  .glass-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    backdrop-filter: blur(10px);
    padding: 20px;
    margin: 20px;
    transition: transform 0.3s ease-in-out;
  }

  .glass-card:hover {
    transform: scale(1.05);
  }

  /* 标题样式 */
  h1, h2, h3, h4 {
    color: #1cb5e0;
    margin-bottom: 15px;
  }

  h1 {
    font-size: 2.5rem;
    text-align: center;
    margin-top: 20px;
  }

  /* 容器布局 */
  .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
  }

  /* 文章样式 */
  article {
    max-width: 800px;
    width: 100%;
    margin-bottom: 40px;
  }

  p {
    margin-bottom: 15px;
    color: #ffffff;
  }

  pre {
    background: rgba(0, 0, 0, 0.6);
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
    margin-bottom: 15px;
  }

  code {
    font-family: 'Source Code Pro', monospace;
    color: #ffdd57;
  }

  /* 模块样式 */
  .module {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
  }

  .module-item {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 20px;
    margin: 10px;
    flex: 1 1 300px;
    max-width: 350px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease-in-out;
  }

  .module-item:hover {
    transform: translateY(-10px);
  }

  /* 按钮样式 */
  .btn {
    background: linear-gradient(135deg, #1cb5e0, #000046);
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    color: #ffffff;
    cursor: pointer;
    transition: background 0.3s;
    text-decoration: none;
    display: inline-block;
    margin-top: 10px;
  }

  .btn:hover {
    background: linear-gradient(135deg, #000046, #1cb5e0);
  }

  /* 图片样式 */
  img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 15px;
  }

  /* 提示文本 */
  .notice {
    text-align: center;
    margin: 20px 0;
    font-size: 1.2rem;
    color: #ffdd57;
  }

  /* 响应式设计 */
  @media (max-width: 1440px) {
    h1 {
      font-size: 2.2rem;
    }
  }

  @media (max-width: 1200px) {
    .module-item {
      max-width: 300px;
    }
  }

  @media (max-width: 1024px) {
    h1 {
      font-size: 2rem;
    }
  }

  @media (max-width: 768px) {
    .module {
      flex-direction: column;
      align-items: center;
    }
  }

  @media (max-width: 480px) {
    h1 {
      font-size: 1.8rem;
    }

    .btn {
      padding: 8px 16px;
      font-size: 0.9rem;
    }
  }