.three_bt{
  font-size:52px !important;
  line-height:1.2 !important;
  font-weight:800 !important;
  letter-spacing:1px;
  color:#ffffff !important;
  text-shadow:0 6px 18px rgba(0,0,0,.35);
}
.three_bt span{
  display:block;
  margin-top:12px;
  font-size:22px !important;
  line-height:1.6 !important;
  color:rgba(255,255,255,.96) !important;
  text-shadow:0 3px 10px rgba(0,0,0,.26);
}
.three_bt span b{
  color:#9ef0ff !important;
  font-size:30px !important;
  font-weight:800;
  margin-left:6px;
}
@media (max-width: 1200px){
  .three_bt{font-size:44px !important;}
  .three_bt span{font-size:20px !important;}
}
@media (max-width: 768px){
  .three_bt{font-size:30px !important;line-height:1.35 !important;}
  .three_bt span{font-size:16px !important;line-height:1.6 !important;}
  .three_bt span b{font-size:22px !important;}
}