@media all and (max-width: 640px){
    body{
        padding: 53px 0 ;
    }
    .contenter{
        width: 100%;
        margin: 0 auto;
        padding: 0 10px;
        box-sizing: border-box;
    }
    .myheader{
        height: 53px;
    }
    .logo{
    }
    .logo img{
        height: 40px;
        margin-top: 6px;
    }
    .myheader .tell{
        display: none;
    }
    .myheader .icon_menu{
        float: right;
        width: 9%;
        display: inline-block;
        padding: 8px 0;
        border-top: 2px solid #08438d;
        border-bottom: 2px solid #08438d;
        height: 2px;
        background-color: #08438d;
        background-clip: content-box;
        margin-top: 15px;
    }
    .nav{
        display: none;
        position: fixed;
        top: 53px;
        right: 0%;
        margin-left: 0;
        float: none;
        width: 100%;
        z-index: 999;

    }
    .nav ul{
        width: 100%;
        position: absolute;
        top: 0;
        right: 0%;
        background: #005aab;
        display: block;
        padding:5px 15px;
        box-sizing: border-box;
    }
    .nav li{
        width: 100%;
        float: none;
        display: block;
        padding: 0px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.09);
        height: auto;
        text-align: center;
    }
    .nav li a{
        color: #fff;
        font-size: 14px;
        display: block;
        line-height: 40px;
        height: 40px;
        width: 90%;
        text-align: left;
        padding-left: 15px;
        background: url("../images/right_white.svg") no-repeat right center/12px;

    }
    .nav li:hover a{
        color: #fff;
    }
    .swiper-slide .swiper_box{
        width: auto;
        left: 60px;
        top: 50px;
    }
    .swiper-slide .swiper_box a {
        padding: 0px 11px 0px 11px;
        border: 1px solid #fff;
        border-radius: 7px;
        background: url(../images/right_arrow.png) no-repeat 97px center/20px;
        color: #fff;
        transition: .3s all;
        display: inline-block;
    }
    .swiper-slide .swiper_box .title {
        margin-bottom: 26px;
        font-size: 16px;
        color: #fff;
    }

    .swiper-slide .swiper_box .txt2 {
        margin-bottom: 40px;
        max-height: 84px;
        overflow: hidden;
        display: none;
    }

    .my_slide .swiper-slide img{
        height: 179px;
    }
    .my_slide{
        height: 179px;
    }
    .my_slide .swiper-slide{
        height: 179px;
    }
    .swiper-button-prev{
        left: 24px;
        font-size: 14px;
    }
    .swiper-button-next{
        right: 24px;
    }
    .in_tit{
        margin-top: 15px;
    }
    .in_tit h3{
        font-size: 24px;
        line-height: 26px;
    }
    .in_tit span{
        line-height: 35px;
        font-size: 15px;
        margin-bottom: 15px;
    }
    .in_project_box li{
        width: 47.5%;
        height: auto;
        margin-right: 5%;
        margin-bottom: 12px;
    }
    .in_project_box li:nth-child(3n){
        margin-right: 5%;
    }
    .in_project_box li:nth-child(2n){
        margin-right: 0;
    }
    .in_project_box li img{
        width: 100%;
        height: 100px;
        border-radius: 4px;
    }
    .project_mask{
        position: static;
        background: #fff;
    }
    .project_mask .tit{
        line-height: 17px;
        font-size: 14px;
        color: #333;
        padding-top: 0;
    }
    .project_mask .txt{
        display: none;
    }
    .in_about{
        margin-top: 5px;
        padding-top: 15px;
    }
    .in_about_box .my_txt{
        float: none;
    }
    .in_about_box .my_txt{
        width: 100%;
        margin-bottom: 24px;
    }
    .in_about_box .my_image{
        display: none;
    }
    .about_devel li span{
        font-size: 15px;
    }
    .about_devel li i{
        font-size: 12px;
    }
    .about_devel li div{
        font-size: 15px;
        margin: -6px 0 0 ;
    }
    .in_about_box .my_txt .txt{
        margin-bottom: 14px;
    }
    .in_about_box .my_tit{
        font-size: 18px;
        margin-bottom: 10px;
    }
    .in_about_box .my_tit span{
        display: none;
    }
    .in_case{
        padding: 15px 0 30px;
        background: url("../images/bg_service.jpg") no-repeat fixed center/auto 100%;
    }
    .in_case_box{
        padding-top: 0;
    }
    .in_case_box .swiper_case{
        padding: 0;
    }
    .in_news .news_tit_list li:first-child{
        margin-left: 0;
    }
    .in_news .news_tit_list li{
        width: 91px;
    }
    .in_news .news_tit .tit_left{
        display: block;
        text-align: center;
        float: none;
    }
    .in_news .news_tit_list{
        float: none;
    }
    .in_news .in_news_box{
        width: 100%;
    }
    .in_news .news_list{
        width: 100%;
    }
    .in_news .news_list li{
        width: 100%;
        margin-right: 0;
        margin-bottom: 10px;
    }
    .in_news .news_list li .my_image img{
        height: 170px;
    }
    .in_news .news_list li .my_image{
        height: 170px;
    }
    .footer{
        margin-top: 10px;
    }
    .footer .footer_nav{
        display: none;
    }
    .footer .footer_ewm{
        display: none;
    }
    .footer .footer_tell{
        float: none;
        margin-left: 0;
        width: 100%;
    }
    .footer{
        padding-top: 15px;
    }
    .footer .links{
        margin-top: 15px;
    }




    .dibu{
        display: block;
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 55px;
        background-color: #005aab;
        margin: 0 auto;
        z-index: 10;
    }
    .dibu ul{
        width: 100%;
        display: flex;
    }
    .dibu li{
        /* float: left; */
        /* width: 24.7%; */
        flex: 1;
        border-right: 1px solid #fff;
        text-align: center;
    }
    .dibu li:last-child{
        border-right: 0;
    }
    .aboutb{
        padding-top: 0;
    }
    .dibu li a{
        display: block;
        height: 55px;
        color: #fff;
        line-height: 25px;
    }
    .dibu li a img{
        display: block;
        width: 25px ;
        height: 25px;
        margin: 5px auto 0;
    }
    .dibu li a span{
        color: #fff;
        line-height: 25px;
    }
    .footer .footer_tell .tit{
        display: none;
    }
    .banner img{
        height: 130px;
    }
    .banner{
        height: 130px;
    }
    .menu{
        height: 45px;
    }
    .menu li{
        margin-right: 0px;
        float: none;
        flex: 1;
        height: 45px;
        line-height: 45px;
    }

    .menu ul{
        display: flex;
    }
    .content .about_box .txt{
        width: 100%;
        float: none;
    }
    .content{
        margin-top: 15px;
    }
    .content .about_box img{
        float: none;
        width: 100%;
        height: auto;
        margin-top: 10px;
        margin-bottom: 30px;
    }
    .honor_list li{
        width: 47.5%;
        margin-right: 5%;
        margin-bottom: 7px;
    }
    .honor_list li:nth-child(2n){
        margin-right: 0;
    }

    .honor_list li .my_image{
        height: 102px;
    }
    .honor_list li .my_image img{
        height: 100px;
    }
    .honor_list li .tit{
        line-height: 31px;
    }
    .page{
        margin: 14px auto 40px;
    }
    .menu .seach{
        display: none;
    }
    .manu_nav{
        height: 45px;
        line-height: 45px;
        color: #999;
        font-size: 13px;
        background: url("../images/home.svg") no-repeat 1px 12px/26px;
    }
    .manu_nav a{
        font-size: 13px;
        color: #999;
    }
    .info_box .left_box{
        float: none;
        width: 100%;
    }
    .info_box .right_box{
        display: none;
    }
    .info_box .left_box .page_title span{
        max-width: 100%;
    }
    .info_box .left_box .page_title span:last-child{
        float: none;
    }
    .info_box .left_box .page_title{
        margin-bottom: 40px;
        margin-top: 0;
    }
    .menu li a{
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .project_box li{
        width: 47.5%;
        margin-right: 5%;
        height: auto;
        margin-bottom: 20px;
    }
    .project_box li:nth-child(3n){
        margin-right: 5%;
    }
    .project_box li:nth-child(2n){
        margin-right: 0;
    }
    .project_box li .my_image{
        width: 100%;
        height: 120px;
    }
    .project_box li .my_image img{
        width: 100%;
        height: 120px;
    }
    .project_box li .my_tit{
        height: 36px;
        line-height: 36px;
    }
    .project_box li .my_mark{
        display: none;
    }
    .info_box .left_box .tit .message{
        margin-top: 0;
    }
    .info_box .left_box .tit .message .share{
        display: none;
    }
    .info_box .left_box .tit .message span{
        height: 28px;
        line-height: 28px;
    }
    .info_box .left_box .tit{
        padding-bottom: 15px;
        margin-bottom: 10px;
    }
    .case_top{
        display: none;
    }
    .case_list{
        margin-top: 20px;
    }
    .case_list li{
        float: none;
        margin-right: 0;
        width: 100%;
        margin-bottom: 20px;
    }
    .case_list li .my_image{
        width: 100%;
        height: 190px;
    }
    .case_list li .my_image img{
        width: 100%;
        height: 190px;
    }
    .case_list li .usss_box{
        padding: 10px 15px;
    }
    .case_list li .usss_box .my_tit{
        margin: 12px auto 11px;
    }
    .case_list li .usss_box .my_txt{
        margin-bottom: 15px;
    }
    .news_top li{
        width: 47.5%;
        margin-right: 5%;
        height: auto;
    }
    .news_top li:nth-child(2){
        margin-right: 0;
    }
    .news_top li:nth-child(3){
        display: none;
    }
    .news_top li .my_image:before{
        display: none;
    }
    .news_top li .my_image img{
        height: 110px;
    }
    .news_top li .my_image{
        height: 110px;
    }
    .news_top li .time{
        display: none;
    }
    .news_top li .txt{
        height: 32px;
    }
    .news_top li .txt span{
        height: 32px;
        line-height: 32px;
    }
    .news_box .news_list{
        margin-top: 20px;
        padding-top: 0;
    }
    .news_box .news_list li{
        height: auto;
    }
    .news_box .news_list li .time{
        display: none;
    }
    .news_box .news_list li a{
        padding: 10px 5px;
        height: auto;
    }
    .news_box .news_list li .txt{
        white-space:normal;
        line-height: 20px;
    }
    .news_box .news_list li .txt{
        height: 60px;
    }
    .news_box .news_list li .title{
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    .news_box .news_list li a:after{
        display: none;
    }
    .about_box .contact{
        width: 100%;
        padding-top: 0;
    }
    .about_box .contact .tit{
        margin-bottom: 13px;
    }
    .about_devel{
        display: none;
    }
    .info_box .left_box .tit h1 {
        color: #333;
        font-size: 16px;
        padding-bottom: 8px;
    }
    .info_box .left_box .txt {
        padding: 10px 0 20px;
        min-height: 180px;
        color: #666;
        font-size: 14px;
        text-align: justify;
    }


    .banner2 {
        margin-top: 15px;
        font-size: 16px;
        color: #fff;
        line-height: 40px;
        margin-left: 20px;
    }
    .banner3 {
        overflow: hidden;
        height: 44px;
        width: auto;
        margin-left: 20px;
        color: rgba(255, 255, 255, 0.5);
        line-height: 22px;
        margin-top: 5px;
        font-size: 12px;
    }
    .banner11 {
        width: auto;
        margin: 0 auto;
    }
    .banner4{
        display: none;
    }
}