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

  /* 设置body的背景颜色、字体和行高 */
  body {
    background-color: #2E3A46; /* 主色调：墨绿色 */
    color: #F5F5F5; /* 字体颜色：米色 */
    font-family: 'Serif', serif; /* 全局使用Serif字体 */
    line-height: 1.6;
    font-size: 16px;
  }

  /* 导航栏样式 */
  .navbar {
    position: fixed; /* 固定在顶部 */
    top: 0;
    width: 100%;
    background-color: #3B4A58; /* 辅助色：深蓝色 */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3); /* 阴影效果 */
  }

  /* 导航链接样式 */
  .navbar a {
    color: #F5F5F5;
    text-decoration: none;
    margin: 0 15px;
    font-size: 17px;
    transition: color 0.3s ease;
  }

  .navbar a:hover {
    color: #FFA500; /* 点缀色：橘色 */
  }

  /* 侧边按钮样式 */
  .side-buttons {
    position: fixed;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 15px;
  }

  .side-buttons button {
    background-color: #FFA500; /* 橘色按钮 */
    border: none;
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
    width: 50px;
    height: 50px;
  }

  .side-buttons button:hover {
    background-color: #FFD700; /* 金色 */
    transform: scale(1.1);
  }

  .side-buttons img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
  }

  /* 主容器样式 */
  .container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
    padding: 100px 30px 30px 30px; /* 上方留出导航栏空间 */
    max-width: 1920px;
    margin: 0 auto;
  }

  /* 侧边栏样式 */
  .sidebar {
    grid-column: span 3;
    background-color: #3B4A58;
    padding: 20px;
    border-right: 2px solid #FFA500; /* 边框为橘色 */
    border-radius: 8px;
  }

  /* 面包屑导航样式 */
  .breadcrumb {
    display: flex;
    list-style: none;
    padding: 10px 0;
    background-color: #2E3A46;
    border-radius: 4px;
    margin-bottom: 20px;
  }

  .breadcrumb li + li:before {
    content: '>';
    padding: 0 8px;
    color: #FFA500;
  }

  .breadcrumb a {
    color: #FFA500;
    text-decoration: none;
    transition: color 0.3s ease;
  }

  .breadcrumb a:hover {
    color: #FFD700;
  }

  /* 主要内容区域样式 */
  .main-content {
    grid-column: span 9;
    background-color: #2E3A46;
    padding: 20px;
    border-radius: 8px;
  }

  /* 文章标题样式 */
  .main-content h1 {
    font-family: 'Great Vibes', cursive; /* 装饰性字体 */
    color: #FFD700; /* 金色 */
    font-size: 32px;
    margin-bottom: 20px;
    text-align: center;
  }

  /* 二级标题样式 */
  .main-content h2 {
    color: #FFD700;
    font-family: 'Great Vibes', cursive;
    font-size: 24px;
    margin-top: 20px;
    margin-bottom: 10px;
  }

  /* 三级标题样式 */
  .main-content h3 {
    color: #FFD700;
    font-family: 'Great Vibes', cursive;
    font-size: 20px;
    margin-top: 15px;
    margin-bottom: 8px;
  }

  /* 段落样式 */
  .main-content p {
    font-size: 16px;
    margin-bottom: 15px;
    line-height: 1.8;
  }

  /* 代码块样式 */
  pre code {
    display: block;
    background-color: #3B4A58;
    color: #FFD700;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    margin-bottom: 20px;
    white-space: pre-wrap;
    word-wrap: break-word;
  }

  /* 图片样式 */
  img.decorative {
    max-width: 650px;
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin: 20px 0;
  }

  img.decorative:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0,0,0,0.4);
  }

  /* 按钮样式 */
  .btn {
    background-color: #FFA500;
    color: #2E3A46;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
    font-size: 16px;
  }

  .btn:hover {
    background-color: #FFD700;
    transform: scale(1.05);
  }

  /* 卡片样式 */
  .card {
    background-color: #3B4A58;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    transition: box-shadow 0.3s ease;
    margin-bottom: 20px;
  }

  .card:hover {
    box-shadow: 0 6px 10px rgba(0,0,0,0.4);
  }

  /* 高对比色按钮 */
  .cta-button {
    background-color: #FFD700;
    color: #2E3A46;
    padding: 15px 30px;
    border: none;
    border-radius: 4px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
    margin: 20px 0;
  }

  .cta-button:hover {
    background-color: #FFA500;
    transform: translateY(-2px);
  }

  /* 响应式设计：适配手机和平板 */
  @media (max-width: 768px) {
    .container {
      grid-template-columns: repeat(6, 1fr);
      padding: 100px 15px 15px 15px;
    }

    .sidebar {
      grid-column: span 6;
      border-right: none;
      border-bottom: 2px solid #FFA500;
      margin-bottom: 20px;
    }

    .main-content {
      grid-column: span 6;
    }

    .side-buttons {
      flex-direction: row;
      bottom: 10px;
      top: auto;
      right: 50%;
      transform: translateX(50%);
    }

    .navbar {
      padding: 10px 20px;
    }

    .navbar a {
      margin: 0 10px;
      font-size: 15px;
    }

    .main-content h1 {
      font-size: 28px;
    }

    .main-content h2 {
      font-size: 22px;
    }

    .main-content h3 {
      font-size: 18px;
    }

    .main-content p {
      font-size: 15px;
    }

    .cta-button {
      font-size: 16px;
      padding: 12px 25px;
    }
  }

  /* 介于手机和平板之间的中间尺寸响应 */
  @media (min-width: 769px) and (max-width: 1024px) {
    .container {
      grid-template-columns: repeat(8, 1fr);
      padding: 100px 20px 20px 20px;
    }

    .sidebar {
      grid-column: span 2;
    }

    .main-content {
      grid-column: span 6;
    }

    .main-content h1 {
      font-size: 30px;
    }

    .main-content h2 {
      font-size: 23px;
    }

    .main-content h3 {
      font-size: 19px;
    }

    .main-content p {
      font-size: 16px;
    }
  }

  /* 鼠标滑过图片时的动画效果 */
  .fade-slide-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }

  .fade-slide-in.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* 悬停按钮动画 */
  .btn:hover {
    background-color: #FFD700;
    transform: scale(1.05);
  }

  /* 链接hover效果 */
  a:hover {
    text-decoration: underline;
  }

  /* 客户评价卡片样式 */
  .testimonial {
    background-color: #3B4A58;
    padding: 20px;
    border-left: 5px solid #FFD700;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    margin-bottom: 20px;
  }

  /* 视频嵌入样式 */
  .video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    padding-top: 25px;
    height: 0;
    margin-bottom: 20px;
  }

  .video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
  }