/* 全局黑白主题 */
  body {
    background: #f8f8f8;
    color: #333;
    transition: all 0.3s ease;
  }

  /* 链接样式 */
  a {
    color: #666;
    text-decoration: none;
    transition: all 0.3s ease;
  }

  a:hover {
    color: #000;
    transform: translateY(-2px);
  }

  /* 文章卡片样式 */
  .day {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
    margin: 20px 0;
    padding: 20px;
    transform: translateY(0);
    transition: all 0.3s ease;
  }

  .day:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  }

  /* 标题动画 */
  .postTitle {
    position: relative;
    display: inline-block;
  }

  .postTitle:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #333;
    transition: width 0.3s ease;
  }

  .postTitle:hover:after {
    width: 100%;
  }

  /* 滚动渐显动画 */
  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .day {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
  }

  /* 优化阅读体验 */
  .postBody {
    line-height: 1.8;
    letter-spacing: 0.5px;
  }

  /* 响应式布局优化 */
  @media (max-width: 768px) {
    .day {
      margin: 15px 10px;
      padding: 15px;
    }
  }