.paper-row {
    display: flex;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid #ddd;
  }
  
  .paper-meta {
    flex: 0 0 160px;
    color: #555;
    font-size: 14px;
    line-height: 1.6;
  }
  
  .paper-tag {
    font-weight: bold;
    margin-bottom: 4px;
  }
  
  .paper-date {
    color: #999;
  }
  
  .paper-content {
    flex: 1;
  }
  
  .paper-title {
    font-size: 18px;
    margin: 0 0 8px 0;
  }
  
  .paper-desc {
    font-size: 15px;
    color: #333;
    margin: 0;
  }
  
  @media (max-width: 600px) {
    .paper-row {
      flex-direction: column;
    }
  
    .paper-meta {
      flex: none;
      margin-bottom: 8px;
    }
  }

  /* 仅对 class 为 .page-wide 的页面生效 */
body.page-wide .md-main__inner {
  max-width: 2100px;  /* 可改为更大 */
}

body.page-wide .md-content {
  padding-left: 2rem;
  padding-right: 2rem;
}

.paper-card {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 1.5rem;
  align-items: start; /* 让内容从顶部对齐 */
  margin-bottom: 2rem;
}

.paper-meta {
  color: #888;
  font-size: 0.9rem;
  line-height: 1.4;
}

.paper-content h3 {
  margin-top: 0;
  margin-bottom: 0.3rem;
}

.paper-content p {
  margin: 0;
}