.manual_case ul li i{font-size:40px;text-align:center;display:block;margin-bottom:10px;color:#27356f;}

@media screen and (max-width:768px){
  .manual_case_tit ul{flex-wrap:wrap;justify-content:center;gap:30px 0;margin-top:30px;}
  .manual_case_tit ul li{font-size:14px;width:33.3%;font-weight:500;}
  .manual_case ul li i{font-size:40px;margin-bottom:6px;}
}