.main {
    padding-top: 40px;
    padding-bottom: 60px;
  }
  
  .contact {
    margin: 20px 0 0 0;
  }
  
  .contact h3 {
    font-size: 36px;
    font-weight: bold;
    color: #333;
    line-height: 1;
    text-align: center;
    text-transform: uppercase;
  }
  
  .contact hr {
    width: 21px;
    height: 3px;
    background: #14171a;
    margin: 20px auto 0;
  }
  
  .contact h4 {
    font-size: 18px;
    color: #666;
    font-weight: 300;
    text-align: center;
    margin: 15px 0 0;
  }
  .contact ul {
    margin: 40px 0 0 0;
    display: flex;
    flex-wrap: wrap; /* 允许子项换行 */
  }

  .contact ul li {
    float: left;
    width: 33.33333333%;
    padding: 20px 15px 0;
    box-sizing: border-box;
    text-align: center;
    border-right: 1px solid #ebebeb;
    height: auto; /* 允许高度自适应 */
  }
  .contact ul li:last-child {
    border-right: none;
  }
  
  .contact ul li em {
   background: var(--color-primary);
   width: 60px;
   height: 60px;
   line-height: 60px;
   font-size: 30px;
   color: #fff;
   border-radius: 50%;
   display: inline-block;
  }
  
  .contact ul li em i {
   font-size: 28px;
   color: #fff;
  }

  
  
  
  .contact ul li h6 {
   font-size: 17px;
   font-weight: bold;
   color: #333;
   margin: 15px 0 0 0;
   text-transform: uppercase;
  }
  
  .contact ul li p {
   color: #444;
   margin: 10px 0 0;
   font-size: 16px;
   line-height: 24px;
  }
  
  .contact ul li p a {
   color: #444;
  }
  
  .contact ul li p a:hover {
   color: var(--color-primary);
  }
  
  @media screen and (max-width: 768px) {
   .contact ul {
     flex-direction: column;
   }
   .contact ul li {
     width: 100%;
     border-right: none;
     border-bottom: 1px solid #ebebeb;
   }
  }