@media screen and (max-width: 1600px) {
.foot-t .img img{        max-height: 50px;}}
.ban-t .left {
    display: none;}
#nav ul li .sub {
    width: 100%;}@media(max-width: 1201px){
.m_header_box header #logo img { max-height: 0.5rem;}
}