.search button{
    background: url(../images/ssicon.png) #0A5FA4 13px center no-repeat;
    padding-left: 25px;
}
.nav-cont > ul > li ul li{
    width: calc(50% - 50px);
    margin-top:37px;
    margin-bottom: -20px;
}
.subnav{
    width: 320px;
}
.piclist,.list,.zhengshu{
    width:calc(100% - 340px);
}
.nav-cont > ul > li{
    padding-right: 30px;
}
@media screen and (max-width: 1200px) {
    .search button{
        width: 17px;
        height: 17px;
        background: url("../images/ssicon.png") left top no-repeat;
        background-size: 100%;
        padding:0;
        text-indent:-1000px;
        overflow: hidden;
    }
    .nav-cont > ul > li ul li{
        width: 100%;
    }
    .nav-cont > ul > li ul li {
        float: none;
        display: block;
        margin: 0;
        font-size: 13px;
        line-height: 38px;
    }
    .nav-cont > ul > li div,.nav-cont > ul > li:nth-child(3) div{
        width: 100%;
    }
    .nav-cont > ul > li:nth-child(1){
        background: url(../images/arrdwon.png) right 18px no-repeat;
        background-size: 4%;
    }
    .nav-cont > ul > li:nth-child(1) > div.navbox ul, .nav-cont > ul > li:nth-child(2) > div.navbox ul, .nav-cont > ul > li:nth-child(3) > div.navbox ul, .nav-cont > ul > li:nth-child(4) > div.navbox ul, .nav-cont > ul > li:nth-child(5) > div.navbox ul {
        padding-left: 13px;
        text-align: left;
        width: 100%;
        float: none;
        padding-right: 13px;
    }
    .subnav {
        display: none;
    }
    .list, .piclist {
        float: none;
        width: 100%;
    }


}