@media (max-width: 1189px) {

}

@media (max-width: 1024px) {
    .nav li > span, .menu {
        display: block;
    }

    .menu {
        display: block;
    }
    #head{
        position: relative;
        height: 100px;
    }
    .top{
        position: fixed;
        width: 100%;
        z-index: 111;
        background: #fff;
        box-sizing: border-box;

    }

    .nav {
        position: fixed;
        left: 0;
        top: 90px;
        width: 100%;
        box-sizing: border-box;
        z-index: 111;
        margin: 0;
        padding: 20px 2%;
        border-bottom: 1px solid #e1e1e1;
        display: none;
        background: #333;
    }

    .navul li {
        float: none;
        width: 100%;
        text-align: left;
        line-height: 60px;
        height: 60px;
        margin: 0;
        padding: 0;
    }

    .navul li a{
        display: inline-block;
        width: 85%;
        text-align: left;
        font-size: 1rem;
        color: #fff;
        height: 40px;
        line-height: 40px;
        background: none;
        border: 0;
        margin-top: 0;
        box-sizing: border-box;
        position: relative;
        overflow: visible;

    }
    .navul li .nson{
        width: 100%;
        margin-left: 0;
        left: 0;
        text-align: left;
        padding: 0 15px;
        box-sizing: border-box;
        top: 60px;
    }
    .navul li .nson a{
        color: #333;
    }
    .footer .footercon .text br {
        display: none;
    }

    .top-box {
        height: auto;
    }
    .product .cpfl .td,.product .cpzs ul{
        width: 100%;
        float: none;
    }
    .product .cpfl .td .pic{
        width: 49.5%;
        float: left;
        height: auto;
        box-sizing: border-box;
    }
    .product .cpfl .td .pic:nth-child(2){
        float: right;
    }
    .product .cpzs ul li{
        width: 25%;
        box-sizing: border-box;
        margin-right: 0;
    }
    .product .cpzs ul li .pic1{
        margin-left: -3px;
    }
    .footer_nav,.footer_bottom{
        display: none;
    }
}

@media (max-width: 768px) {
    #footer,.telephone{
        display: none;
    }
    #head,.top{
        height: 80px;
    }
    .top .contain .logo{
        margin-top: 10px;
    }
    .nav {
        top: 80px;
    }

    .menu {
        margin-top: 10px;
    }
    .about{
        width: 66%;
    }
    .ab_pic{
        width: 45%;
    }
    .bottom-fixed {
        display: block;
    }
    .search-all .search-list ul.search-content li .content-txt h2{
        font-size: 16px;
    }
    .search-all .search-list ul.search-content li .content-txt h2{
        padding-bottom: 0;
    }
    .envir .con ul li{
        width: 220px;
    }
}

@media (max-width: 600px) {
    .iNews-box li{
        width: 100%;
    }
    .tit{
        padding-top: 30px;
    }
    .news{
        padding-bottom: 30px;
    }
    .iNews-box,.about{
        margin-top: 30px;
    }
    #sidenav,.right-box{
        width: 100%;
        float: none;
    }
    #sidenav .gy,#sidenav .contact{
        display: none;
    }
    #ne_nav{
        margin-top: 30px;
        height: auto;
        line-height: 1.8;
    }
    .product .cpzs ul li,.pxxm ul li{
        width: 50%;
    }
}

@media (max-width: 480px) {
    .tit h2{
        font-size: 22px;
    }
    .about{
        width: 100%;
        height: 350px;
        padding-right: 0;
    }
    .about .con{
        margin-left: 0;
        padding: 0 15px;
    }
    .about .con .tit{
        width: auto;
        padding-top: 30px;
    }
    .ab_pic{
        display: none;
    }
    .product .cpzs{
        margin-top: 25px;
    }
    .envir .con ul li{
        width: 140px;
    }
    .iNews-box li{
        padding: 15px;
        padding-right: 0;
    }
    .iNews-r-time{
        font-size: 40px;
        line-height: 1;
    }
    #head, .top,.top .contain .logo img{
        height: 50px;
    }
    .nav{
        top: 50px;
    }
    .top .contain .logo{
        margin-top: 0;
    }
    .menu {
        margin-top: 14px;
    }
    #sidenav h2{
        height: 45px;
        line-height: 45px;
        font-size: 20px;
        font-weight: normal;
    }
    .menu img {
        width: 30px;
    }
    .news-listbox li .content-img{
        display: none;
    }
    .news-listbox li .content-txt p.desc{
       max-height: 66px;
        overflow: hidden;
    }
    .detail-box{
        padding-bottom: 0;
    }
    .m_hidden,.header-box .login-apply{
        display: none;
    }
}

@media (max-width: 320px) {

}