@media screen and (max-width:730px) {
    .MainCore .L { width:100%; }
    .MainCore .R { width:100%; border-left:none; border-top:1px dashed #333; margin:10px 0 0 0; padding:20px 0 0 0; }
}
@media screen and (max-width:450px) {
    .mnu li { line-height:30px; height:30px; }
    .Main input[type="text"], .Main input[type="password"] { width:calc(100% - 20px); }
    .Main input[type="submit"], .Main .btn { width:calc(100% - 8px); ) }
    #LSide { z-index:45; }
    #RSide { width:100%; margin: 0; }
    .diagPrice .Total { font-size:9px; }
    .diagPrice .diagFooterBtns .btn { font-size:10px; }
}