.paper-section {
    padding: 60px 20px;
    background-color: #f9f9f9;
  }
  
  .paper-container {
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .paper-title {
    font-size: 2em;
    text-align: center;
    margin-bottom: 10px;
  }
  
  .paper-divider {
    width: 60px;
    height: 3px;
    background-color: #007bff;
    margin: 0 auto 20px auto;
  }
  
  .paper-intro {
    text-align: center;
    font-size: 1.1em;
    margin-bottom: 40px;
    color: #555;
  }
  
  .paper-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: space-between;
  }
  
  .paper-card {
    flex: 1 1 calc(33.33% - 20px);
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
    padding: 20px;
  }
  
  .paper-card:hover {
    transform: translateY(-6px);
  }
  
  .paper-topic {
    font-size: 1.25em;
    margin-bottom: 15px;
  }
  
  .paper-topic a {
    text-decoration: none;
    color: #333;
  }
  
  .paper-list {
    padding-left: 20px;
    margin-bottom: 15px;
  }
  
  .paper-list li {
    margin-bottom: 8px;
    color: #555;
  }
  
  .paper-link {
    text-decoration: none;
    color: #8e1e13;
    font-weight: bold;
  }