/* 基本样式设置 */
  body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif; /* 使用现代无衬线字体 */
    background: linear-gradient(135deg, #1e3c72, #2a5298); /* 渐变背景色，传递科技感 */
    color: #ffffff;
    line-height: 1.6;
  }

  /* 容器设置，采用黄金比例布局 */
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
  }

  /* 顶部导航栏样式 */
  .navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.7); /* 半透明背景 */
    padding: 15px 30px;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  }

  .navbar a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 15px;
    font-size: 16px;
    transition: color 0.3s ease;
  }

  .navbar a:hover {
    color: #ff5722; /* 亮橙色悬停效果 */
  }

  /* 提示信息样式 */
  .highlight {
    text-align: center;
    font-size: 24px;
    margin: 100px 0 50px 0; /* 留出导航栏空间 */
    color: #ffeb3b; /* 亮黄色，突出提示 */
    animation: fadeIn 2s ease-in-out;
  }

  /* 文章内容样式 */
  article {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    animation: slideIn 1.5s ease-out;
  }

  article h2 {
    color: #ff5722;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
    margin-bottom: 20px;
  }

  article h3 {
    color: #ffffff;
    margin-top: 40px;
    margin-bottom: 15px;
  }

  article p {
    color: #dddddd;
    margin-bottom: 20px;
  }

  article pre {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 20px;
  }

  article pre code {
    color: #00e676;
    font-family: 'Courier New', Courier, monospace;
  }

  /* 按钮样式 */
  .button {
    background-color: #4caf50; /* 亮绿色 */
    border: none;
    color: white;
    padding: 12px 25px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 10px 0;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s ease, transform 0.3s ease;
  }

  .button:hover {
    background-color: #45a049;
    transform: scale(1.05);
  }

  /* 图表样式 */
  .line-chart {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    margin-bottom: 30px;
  }

  .line {
    stroke: #ff5722;
    stroke-width: 2;
    fill: none;
    animation: draw 2s ease-in-out forwards;
  }

  @keyframes draw {
    from {
      stroke-dasharray: 1000;
      stroke-dashoffset: 1000;
    }
    to {
      stroke-dasharray: 1000;
      stroke-dashoffset: 0;
    }
  }

  /* 动画效果 */
  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  @keyframes slideIn {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
  }

  /* 响应式设计 */
  @media (max-width: 768px) {
    .navbar {
      flex-direction: column;
      align-items: flex-start;
    }

    .navbar a {
      margin: 10px 0;
    }

    .highlight {
      font-size: 20px;
      margin: 120px 0 30px 0;
    }

    article {
      padding: 20px;
    }

    .button {
      width: 100%;
      padding: 10px 0;
    }
  }

  /* 图片样式 */
  img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    margin-bottom: 20px;
  }

  /* 链接样式 */
  a.external-link {
    color: #ffeb3b;
    text-decoration: none;
  }

  a.external-link:hover {
    text-decoration: underline;
  }

  /* 图标样式 */
  .icon {
    stroke: #ff5722;
    width: 24px;
    height: 24px;
  }