.cantings  .subnav ul li:nth-child(2){}
.cantings  .subnav ul li:nth-child(2) a{ color:#354e40; font-weight:bold}
.cantings  .subnav ul li:nth-child(2) a span{ position:relative}
.cantings  .subnav ul li:nth-child(2)::before {
    position: absolute;
    left:0%;
    bottom:0px;
    margin-left:0;
    content: "";
    display: block;
    width:100%;
    height:3px; background-color:#354e40;  
    transition: all .5s ease;
}

.huiyis  .subnav ul li:nth-child(3){}
.huiyis  .subnav ul li:nth-child(3) a{ color:#354e40; font-weight:bold}
.huiyis  .subnav ul li:nth-child(3) a span{ position:relative}
.huiyis  .subnav ul li:nth-child(3)::before {
    position: absolute;
    left:0%;
    bottom:0px;
    margin-left:0;
    content: "";
    display: block;
    width:100%;
    height:3px; background-color:#354e40;  
    transition: all .5s ease;
}



@media (max-width:1000px) {

}