/* 全局样式 */
  body {
    margin: 0;
    font-family: 'Open Sans', Arial, sans-serif;
    line-height: 1.6;
    color: #2F4F4F;
    background: linear-gradient(135deg, #D3D3D3, #FFFFFF);
    padding: 20px;
  }

  h1, h2, h3, h4 {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    color: #5F9EA0;
    margin-bottom: 20px;
  }

  h1 {
    font-size: 36px;
    text-align: center;
    margin-top: 0;
  }

  h2 {
    font-size: 28px;
  }

  h3, h4 {
    font-size: 22px;
  }

  p {
    font-size: 16px;
    margin-bottom: 20px;
  }

  ul, ol {
    margin-bottom: 20px;
    padding-left: 40px;
  }

  a {
    color: #5F9EA0;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
  }

  a:hover {
    color: #FF7F50;
  }

  a[rel="nofollow"] {
    /* 确保nofollow链接样式一致 */
  }

  /* 头部样式 */
  .header {
    background: linear-gradient(to right, #5F9EA0, #2F4F4F);
    color: #FFFFFF;
    text-align: center;
    padding: 40px 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  }

  /* 导航栏样式 */
  .navbar {
    background-color: #5F9EA0;
    display: flex;
    justify-content: space-around;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }

  .navbar a {
    color: #FFFFFF;
    text-decoration: none;
    font-weight: bold;
    padding: 8px 16px;
    border-radius: 4px;
    transition: background-color 0.3s ease;
  }

  .navbar a:hover {
    background-color: #FF7F50;
    color: #FFFFFF;
  }

  /* 主内容区样式 */
  .container {
    background-color: #FFFFFF;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    max-width: 1200px;
    margin: 0 auto;
  }

  .card {
    background-color: #D3D3D3;
    padding: 20px;
    border-radius: 6px;
    margin-bottom: 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }

  .card h2 {
    color: #2F4F4F;
  }

  .highlight {
    background-color: #FF7F50;
    color: #FFFFFF;
    padding: 5px 10px;
    border-radius: 4px;
    font-weight: bold;
  }

  /* 颜色样本样式 */
  .color-swatch {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    display: inline-block;
    margin-right: 10px;
    vertical-align: middle;
  }

  /* 按钮样式 */
  .button {
    background-color: #2F4F4F;
    color: #FFFFFF;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    font-size: 16px;
  }

  .button:hover {
    background-color: #5F9EA0;
  }

  /* 表单样式 */
  input[type="text"], textarea {
    width: 100%;
    border: 2px solid #5F9EA0;
    background-color: #FFFFFF;
    padding: 8px;
    color: #2F4F4F;
    border-radius: 4px;
    margin-bottom: 20px;
    box-sizing: border-box;
    font-size: 16px;
  }

  label {
    font-weight: bold;
    display: block;
    margin-bottom: 5px;
  }

  /* 页脚样式 */
  .footer {
    text-align: center;
    padding: 20px;
    color: #FFFFFF;
    background-color: #2F4F4F;
    border-radius: 4px;
    margin-top: 30px;
  }

  /* 图片样式 */
  .decorative-img {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: 4px;
    margin: 10px;
  }

  /* 色彩设计指南提示样式 */
  .guide-banner {
    background-color: #FF7F50;
    color: #FFFFFF;
    text-align: center;
    padding: 15px;
    border-radius: 4px;
    font-size: 18px;
    margin-bottom: 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }

  /* 响应式设计 */
  @media (max-width: 1440px) {
    .container {
      padding: 30px;
    }

    h1 {
      font-size: 32px;
    }

    h2 {
      font-size: 26px;
    }

    .navbar {
      flex-direction: column;
      align-items: center;
    }

    .navbar a {
      margin-bottom: 10px;
    }
  }

  @media (max-width: 1200px) {
    .container {
      padding: 25px;
    }

    h1 {
      font-size: 28px;
    }

    .navbar a {
      padding: 10px 20px;
    }
  }

  @media (max-width: 1024px) {
    .container {
      padding: 20px;
    }

    .navbar {
      flex-direction: column;
      align-items: flex-start;
    }

    .navbar a {
      padding: 8px 16px;
      width: 100%;
      text-align: left;
    }
  }

  @media (max-width: 768px) {
    .header {
      padding: 30px 15px;
    }

    .container {
      padding: 15px;
    }

    h1 {
      font-size: 24px;
    }

    h2 {
      font-size: 22px;
    }

    h3, h4 {
      font-size: 18px;
    }
  }

  @media (max-width: 480px) {
    .header {
      padding: 20px 10px;
    }

    .navbar {
      flex-direction: column;
      align-items: center;
    }

    .navbar a {
      padding: 10px;
      font-size: 14px;
    }

    .container {
      padding: 10px;
    }

    h1 {
      font-size: 20px;
    }

    .guide-banner {
      font-size: 16px;
      padding: 10px;
    }
  }

  @media (max-width: 320px) {
    .navbar a {
      padding: 8px;
      font-size: 12px;
    }

    .button {
      padding: 8px 16px;
      font-size: 14px;
    }
  }

  /* 代码示例样式 */
  pre {
    background-color: #f4f4f4;
    padding: 15px;
    border-radius: 6px;
    overflow-x: auto;
    margin-bottom: 20px;
  }

  code {
    color: #2F4F4F;
    font-family: 'Courier New', Courier, monospace;
  }

  /* 配色方案展示 */
  .color-palette {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
  }

  .color-label {
    margin-right: 15px;
    display: flex;
    align-items: center;
    margin-bottom: 10px;
  }

  .color-code {
    margin-left: 8px;
    font-family: 'Courier New', Courier, monospace;
    background-color: #f4f4f4;
    padding: 4px 8px;
    border-radius: 4px;
  }

  /* 图文并茂布局 */
  .image-text {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
  }

  .image-text img {
    max-width: 320px;
    width: 100%;
    border-radius: 4px;
    margin-right: 20px;
    margin-bottom: 20px;
  }

  .image-text .text-content {
    flex: 1;
    min-width: 200px;
  }