.mobile {
    display: none;
}

.pc {
    display: block;
}

@media (max-width:640px) {
    .banner,
    .logoword,
    .headertel,
    .pc {
        display: none;
    }
    .bottom-fluid,
    .mobile,
    .bottoming,
    .daohang,
    .banner-mobile{
        display: block;
    }
    .ys-item .ys-img,
    .ys-item .ys-info,
    .sub-news-item .info .word,
    .nav>ul>li,
    .news-item,
    .footr,
    .footer .foot-type,
    .footer .foot1,
    .news-list,
    .header{
        padding-left:0;
        padding-right: 0;
        width:100%;
    }
    .nav,
    .container {
        width: 96%;
    }
    .ys-item,
    .subabout_title>ul,
    .nav>ul{
        flex-wrap: wrap;
    }
    .fluid {
        padding: 30px 0;
    }
    .sub-news-item .time,
    .pc,
    .top-fluid,
    .footer-box1,
    .footer-box2 {
        display: none;
    }
    .header-fluid{
        padding:0;
        background-color: #005ab4;
        position: fixed;
        top:0;
        left:0;
        width:100%;
        z-index:99;
    }
    .daohang{
        height: 55px;
        color:#fff;
        width:calc(100% - 319px);
        text-align: center;
        line-height: 55px;
    }
    .logobox{
        width:319px;
        height: 55px;
        padding:5px;
        background-color: #fff;
        border-top-right-radius: 4px;
        border-bottom-right-radius: 4px;
        overflow: hidden;
    }
    .logo img{
        height: 44px;
    }
    .daohang i.iconfont{
        font-size:24px;
    }
    .navbar{
        display: block;
        background-color: #fff;
        position: fixed;
        top:55px;
        left:0;
        width:100%;
        z-index:99;
        padding:20px;
        box-shadow: 0 5px 10px #ddd;
        display: none;
    }
    .navbar>.nav{
        width:100%;
    }
    .nav>ul>li{
        height: 46px;
        border-bottom: 1px solid #ddd;
    }
    .nav>ul>li>a{
        color:#333;
        text-align: left;
        line-height: 45px;
    }
    .main-title .title{
        font-size:30px;
    }
    .main-title .title::before, .main-title .title::after{
        width: calc(50% - 70px);
    }
    .main-title .title-china{
        font-size:30px;
    }
    .banner-mobile{
        margin-top: 55px;
    }
    .about{
        padding:25px;
    }
    .about-info{
        font-size:15px;
        line-height: 28px;
        height: 168px;
    }
    .about-list{
        margin-top: 5px;
    }
    .about-list>ul{
        justify-content: space-between;
        flex-wrap: wrap;
    }
    .about-list>ul>li{
        width:calc(100%/3 - 15px);
        margin-top: 15px;
    }
    .about-list>ul>li img{
        display: block;
        max-width: 65px;
        margin:0 auto;
    }
    .MORE{
        margin-top: 30px;
    }
    .MORE a{
        width:150px;
        line-height: 38px;
    }
    .case-item{
        width:calc(50% - 5px);
        margin-right: 10px;
    }
    .case-item:nth-of-type(3n){
        margin-right: 10px;
    }
    .case-item:nth-of-type(2n){
        margin-right: 0;
    }
    .case-item:nth-of-type(10){
        display: block;
    }
    .news-item{
        margin-bottom: 10px;
    }
    .news-item>a{
        padding:10px;
    }
    .news-item>a .info .des{
        height: auto;
        min-height: 44px;
    }

    .about-list>ul>li>a .img{
        width:65px;
        height: 65px;
    }
    .footer .foot-type{
        padding-left: 0;
        margin-top: 20px;
    }
    .footer .foot-type .tit{
        margin-bottom: 10px;
    }
    .footer .footr{
        width:100%;
        justify-content: center;
    }
    .footer-ewm{
        padding:20px 10px 0;
        width:45%;
    }
    .sub-banner{
        margin-top: 55px;
        height: 120px;
        background-size: cover;
        background-position: -50px 0;
    }
    .subabout_title>ul>li{
        width:calc(100%/3 - 4px);
        margin:0;
        margin-right: 6px;
        margin-bottom: 6px;
    }
    .subabout_title>ul>li:nth-of-type(3n){
        margin-right: 0;
    }
    .subabout_title>ul>li>a{
        line-height: 45px;
        height: 45px;
    }
    .subabout_title>ul>li:hover>a .title{
        top:-45px;
    }
    .subabout_title>ul>li>a .title{
        font-size:16px;
    }
    .sub-wraper-fluid{
        padding:30px 0;
    }
    .sub-detail{
        padding:25px 15px;
    }
    .sub-title{
        margin-bottom: 10px;
    }
    .servicelist>ul>li{
        width:calc(50% - 5px);
        margin-right: 0;
    }
    .servicelist>ul>li>a .img{
        height: 140px;
    }
    #service a .img img, .servicelist>ul>li>a .img img{
        height: 100px;
    }
    .sub-case-item{
        padding-bottom: 15px;
        margin-bottom: 15px;
    }
    
    .sub-case-item .img{
        width:120px;
    }
    .sub-case-item .img>a{
        height: 120px;
    }
   
    .sub-case-item .info{
        width:calc(100% - 130px);
    }
    .sub-case-item .info .title>a{
        font-size:16px;
        line-height: 22px;
        height: 22px;
    }
    .sub-case-item .info .des{
        margin-top: 5px;
        line-height: 20px;
        height: 40px;
    }
    .sub-case-item .info .date{
        margin-top: 5px;
    }
    .sub-case-item .info .more>a{
        width:100px;
        line-height: 25px;
        margin-top: 5px;
    }
    .pages{
        margin-top: 30px;
    }
    .sub-contact-box .sub-contact-title{
        font-size:25px;
        margin-bottom: 10px;
    }
    .sub-contact-list .item{
        width:100%;
        padding:5px;
    }
    .sub-contact-list .item .icon i.iconfont{
        font-size:60px;
    }
    .sub-contact-list .item p{
        font-size:20px;
    }
    .sub-news-item .img{
        width:100px;
    }
    .sub-news-item .info{
        width:calc(100% - 100px);
        padding-left:15px;
    }
    .sub-news-item .info .word .des{
        line-height: 20px;
        height: 40px;
        -webkit-line-clamp:2;
    }
    .sub-content{
        font-size:16px;
        line-height: 1.8;
    }
    .crumbs-fluid{
        padding:5px 0;
    }
    .crumbs{
        line-height: 20px;
    }
    .sub-title .title{
        font-size:22px;
    }
    .sub-title p{
        font-size:13px;
    }
    .footer-bottom{
        padding-bottom: 68px;
    }
    #service a .title, .servicelist>ul>li>a .title{
        font-size:13px;
        text-overflow: ellipsis;
        white-space: nowrap;
        overflow: hidden;
    }
}

@media (max-width:330px) {
    .logo-box .logo img {
        height: 40px;
    }
}