* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    padding: 40px;
  }
  .container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 40px;
    background-color: #fff;
    border-radius: 6px;
    position: relative;
  }
  header h1 {
    font-size: 2em;
    margin: 15px 0; /* 增加标题与容器顶部距离 */
  }
  .meta {
    font-size: 0.9em;
    color: #777;
  }
  .meta img{
    width: 48px;
    height: 48px;
    float: left;
    margin-right: 10px;
  }
  .meta span{
    display: block;
  }
  .meta span.meta_auth{
    color: #333333;
    padding: 5px 0 0 0;
  }
  .meta span.meta_info{
    font-size: 13px;
    padding-top: 5px;
  }
  article{
    margin: 50px 0;
  }
  article p {
    line-height: 1.8rem;
    color: #333333;
    margin: 25px 0;
  }
  /* 文本格式 */
  strong {
    font-weight: bold;
  }
  em {
    font-style: italic;
  }
  /* 链接样式 */
  article a,
  .nav-links a,
  .related a {
    color: #333333;
    text-decoration: none;
    transition: color 0.2s;
  }
  article a:hover,
  .nav-links a:hover,
  .related a:hover {
    color: #135abe;
  }
  article a{
    text-decoration: underline;
  }
  /* 图片样式 */
  article img, article video {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 24px auto;
    border-radius: 4px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  }
  article img {
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  }
  
  .nav-links {
    display: flex;
    justify-content: space-between;
    padding: 20px 0;
    border-top: 1px solid #d9d9d9;
    border-bottom: 1px solid #d9d9d9;
  }
  .nav-links a,.nav-links span{
    color: #777777;
    font-size: 15px;
  }
  .related {
    margin-bottom: 20px;
    margin-top: 40px;
  }
  .related h2 {
    font-size: 1.2em;
    margin-bottom: 20px;
  }
  .related ul {
    list-style: none;
    padding: 0;
  }
  .related li {
    margin-bottom: 8px;
  }
  .home-button {
    display: inline-block;
    position: absolute;
    top: 20px;
    left: -200px;
    color: #666666;
    text-decoration: none;
    transition: color 0.3s;
  }
  .home-button:hover {
    color: #000000;
  }
  /* 手机端适配 */
  @media (max-width: 600px) {
    body {
      padding: 20px;
    }
    .container{
      max-width: 100%;
      padding: 20px 0;
    }
    /* 返回首页按钮宽度100% */
    .home-button {
      top: 10px;
      left: 0;
      border: 1px solid #dedede;
      color: #333333;
      border-radius: 6px;
      padding: 5px 10px;
      font-size: 14px;
    }
    /* 上一篇和下一篇两行显示 */
    .nav-links {
      flex-direction: column;
      gap: 12px;
      align-items: center;
    }
    .nav-links .prev,
    .nav-links .next {
      width: 100%;
      text-align: center;
    }
    header {
      padding-top: 50px;
    }
    header h1 {
      font-size: 1.5rem;
    }
  }