/*媒体查询*/
@media only screen and (min-width: 320px) {
  html{font-size: 55.556% !important;}
}
@media only screen and (min-width: 360px) {
  html{font-size: 62.5% !important;}
}
@media only screen and (min-width: 375px) {
  html{font-size: 65.10417% !important;}
}
@media only screen and (min-width: 1200px){
  html{ font-size: 100% !important;}
}
@media only screen and (max-width:1200px) {
  html{font-size: 71.875% !important;}
}
@media only screen and (max-width:1100px) {
  .menu{display: none;}
  .cen-r{width:100%;}
}
@media only screen and (max-width:900px) {
  .nav-web,.form{display: none;}
  .menu-button,#so-bt{display: block;}
  .logo{margin-left:3rem;width:calc(50% - 3rem);}
  .top-txt{margin:0px 2rem;width:calc(50% - 7rem);}
  .part-left,.part-right{float: none;width:100%;max-width:unset;}
  .jsxw{display:none}
  .part-right{margin-top:1rem;}
}
@media only screen and (max-width:768px){
.foot{display:block;text-align:center;}
.foot-img{margin: 1rem auto 0 auto;width:auto;}
.foot-ewm{margin: 1rem auto 0 auto;width:auto;}
}