@media (max-width:1250px){
    .box{
        width: 95%;
    }
    .fo_z{
        display: none;
    }
    .prli{
        height: 184px;
    }
    .prli a{
        height: 185px;
    }
    .prli p{
        margin-top: 60px;
    }
    .ys1 .con{
        width: 56%;
    }
    .ys1{
        background-size: 100%;
    }
    .ys2{
        background-size: 100%;
    }
    .ys3{
        background-size: 100%;
    }
    .ys4{
        background-size: 100%;
    }
    .con strong{
        margin-top: 25px;
    }
    .new{
        width: 26.8%;
    }
    .ckgd{
        margin-top: 10px;
    }

}
@media (max-width:950px){
    .prli{
        height: 147px;
    }
    .prli a {
        height: 147px;
    }
    .prli p {
        margin-top: 42px;
        font-size: 18px;
    }
    .prli span{
        font-size: 15px;
    }
    .con strong {
        margin-top: 6px;
    }
    .ys1 .con{
        height: 110px;
    }
    .ys2 .con{
        height: 110px;
    }
    .ys3 .con{
        height: 110px;
    }
    .ys4 .con{
        height: 110px;
    }
    .nne {
        margin-top: 10px;
    }
    .new {
        width: 24.8%;
        margin-bottom: 15px;
    }
    .tel{
        display: none;
    }
    .logo{
        display: block;
        margin: 0 auto;
        padding-top: 16px;
        float: none;
        width: 100%;
    }
}
@media (max-width:450px){
    .mar div:nth-child(4){
        display: block;
    }
    .mar div{
        width: 47%;
    }
    .mar div:nth-child(3) {
        margin: 30px 3% 30px 0;
    }
    .maa{
        width: 47%;
    }
    .maa:nth-child(even){
        margin-right: 0;
    }
    .maa:nth-child(3){
        margin: 0px 3% 30px 0;
    }
    .list-column{
        height: 30px;
        line-height: 20px;
    }
    .ma_l{
        display: none;
    }
    .ma_r{
        width: 100%;
        margin-left: 0;
    }
    .mar p{
        font-size: 14px;
    }
    .main{
        margin: 20px 0;
    }
    .head{
        height: 100px;
    }
    .nav ul li{
        width: 33%;
    }
    #p{
        left: 43%;
        bottom: 10%;
    }
    .prlist{
        display: none;
    }
    .product{
        margin-top: 0;
    }
    .prr{
        width: 47%;
    }
    .prr p{
        padding: 4px 0;
    }
    .product h2{
        margin-bottom: 15px;
    }
    #h_main1{
        display: none;
    }
    .yss img{
        margin-top: 0;
        width: 130%;
        margin-left: -15%;
    }
    .yss{
        overflow: hidden;
    }
    .news {
        margin-top: 20px;
    }
    .new{
        width: 87.8%;
    }
    .ckgd{
        margin-left: 25%;
    }
    .ca {
        margin-top: 25px;
    }
    .ca div{
        width: 47%;
    }
    .fo_l{
        text-align: center;
        width: 100%;
    }
    .fo_l span{
        font-size: 13px;
    }
    .fo_r{
        display: none;
    }
    .folink a{
        font-size: 12px;
    }
    .bottom_bottom{
        display: block;
    }
    .bottom_bottom{
        position: fixed;
        bottom: -2px;
        left: 0;
        width: 100%;
        background: #000000;
        z-index: 999;
    }
    .bottom_bottom nav{
       display: flex;
       justify-content: space-between;
    }
    .bottom_bottom nav a{
        padding: 12px 17px;
        color: #fff;
        text-decoration: none;
    }
    .nav .box{
        width: 100%;
    }
    .nav ul li{
        border: 1px solid #fff;
        margin-left: -1px;
        margin-top: -1px;
    }
    .ma_r img{
        width: 100%;
    }
    .tjcp_d:nth-child(5){
        display: none;
    }
    .tjcp_d{
        width: 45%;
        margin-right: 0;
        margin: 10px 6px;
    }
    .ndiv{
        width: 90%;
    }
    .syp{
        width: 100%;
    }
    .xyp{
        width: 100%;
    }
    #left{
        top: 10%;
    }
    #right{
        top: 10%;
    }
    #banner img {
        width: 130%;
        margin-left: -13%;
    }
}