.row_navigation_ul>li:nth-child(6){
  padding-bottom: 1rem;
  border-bottom: 0.2rem solid #024f57;
}

.box{
  width: 800px;
  margin: 0 auto;
}
.contact{
  margin-top: 60px;
  font-size: 20px;
}
.contact>span{
  color: #000;
}
.box>div{
  width: 64%;
  margin-top: 74px;
  border-top: 1px solid #afafaf;
}

.contact_infi{
  width: 800px;
  margin: 0 auto;
  font-size: 21px;
}
.contact_infi>p:nth-child(1){
  margin-top: 30px;
}
.contact_infi>p{
  margin-bottom: 5px;
}

.qr_code{
  width: 800px;
  margin: 0 auto;
  font-size: 22px;
  font-weight: 700;
}
.qr_code>p{
  margin-top: 45px;
  margin-bottom: 22px;
}
.qr_code>img{
  margin-left: 20px;
  margin-bottom: 80px ;
}