@media screen and (max-width: 640px){
    .headlogo{ display:none; }
    .navbar{ background: #fff; height: 70px; min-height: 70px; border-bottom: 1px solid #ddd; }
    .head_flex, .contact_info { display: block; }
    .navbar-header{ padding: 10px 0; }
    .navbar-toggle{ margin-right:0; }
    .navbar-brand{ display:block; margin:0; padding:0; }
    .index_pro_cate, .index_pro_list, .index_news { margin-top: 20px; }
    .index_title_title_en .e_text-3 {  font-size: 26px; }
    .index_title_title .e_text-3 { font-size: 26px; }
    .pro_cate, .pro_list, .index_application { margin-top:20px; }
    .pro_list .pro_li_a { position: relative; width: 50%; }
    .pro_list .pro_li_a .pro_li_content { padding-left: 10px; padding-right: 10px; margin-left: auto; margin: 10px auto 10px; }
    .pro_list .pro_li_a .pro_li_content .e_line { margin-top: 0; margin-bottom: 5px; }
    .app_floor .app_li{ width: 100%; flex: none; padding: 0; margin-bottom: 10px; }
    .app_floor .app_li.app_li_2 { padding-left: 0px; padding-bottom: 0px; margin-bottom: 10px;  padding-right: 0; }
    .app_floor2 .app_li {flex: none; width: 100%; padding: 0; margin-bottom: 10px; }
    .app_floor2 .app_li.app_li_2 { padding: 0; margin-bottom: 10px; }
    .app_floor2 .app_li.app_li_3 { padding: 0; margin-bottom: 10px;  }
    .index_app_main{ margin-top: 20px; margin-bottom:20px; }
    .index_about{ background-repeat: no-repeat; padding:20px 0; }
    .index_about_main{ margin-top:20px; } 
    .about_desc_main{ flex-wrap: wrap; }
    .about_desc_main .about_desc {  width:100%; }
    .about_desc_main .about_desc .about_d_tit2 { font-size: 20px; }
    .about_desc_main .about_img {  width: 100%; margin-top:10px;  }
    .about_desc_ul{  flex-wrap: wrap; }
    .desc_ul_li { width: 50%; padding:10px 0; }
    .desc_ul_li .desc_ul_li_img {width: 30px;height: 30px; display: flex; align-items: center; justify-content: center; }
    .desc_ul_li .desc_ul_li_text .desc_ul_li_text_nums { font-size: 22px; line-height:30px; height:30px; }
    .news_main{ flex-wrap: wrap; }
    .news_main .news_img {  width: 100%;  height: 240px;  position: relative; }
    .news_main .news_img .news_img_img{ height:240px; }
    .news_img_title .n_title {
            color: #fff;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
    .news_img_title .n_desc{ display:none; }
    .news_main .news_ul{ width:100%; margin-top:20px; }
    .news_main .news_ul .news_ul_li .news_ul_title .n_title{  }
    .news_main .news_ul .news_ul_li .news_ul_title .n_desc{ display:None; }
    .index_news { padding-bottom:20px; }
    .cbox-75-1{ display:None; }
    #c_static .e_container-75 .cbox-75-0{ display:none; }
    #c_static .e_container-75 .cbox-75-2{ flex:none; width:100%; }
    #c_static .e_formBtn-83{ margin-top:20px; }
    #c_static .e_container-69 .cbox-69-0{ width: 100%; flex: none; }
    #c_static .e_container-69{ text-align:center; }
    .e_provider-77.s_title{ text-align:center !important; font-size:14px ; }
    #content-container > h1{ font-size:0px; margin:0; padding:0 10px; background: #eee;  border-bottom: 1px solid #ddd;  }
    #content-container > h1 .pull-right{ float: none !important; height: 42px; line-height: 42px; padding: 0 10px; }
    .cate_title{ display:none; }
    .cate_list { margin-top:0; padding: 10px; display: flex;  flex-wrap: wrap; background: #eee;  justify-content: center; }
    .cate_li { width:auto; margin:5px; background: #fff; }
    .product-item .card{ min-height:auto; }
    .product-item .card .operate .pull-right{ display:none; }
    
    .metas-title { font-size: 22px; margin: 0; line-height: 28px; padding: 10px; }
    .product-desc{ height:auto !important; padding: 0 10px !important; }
    .pro_contact{ padding:10px; }
    .pro_contact .pro_c_img img{ width:22px; height:22px; }
    .pro_contact .pro_c_tit, .pro_contact .pro_c_cont {
        font-size: 16px;
        font-weight: bold;
    }
    .pro_details_title{ margin:0 10px; }
    .pro_details{ padding:10px; }
    
    .pro_det_main{ padding:20px 0 0 !important; }
    .list_nav{ padding:0; }
    .breadcrumb_div { height: 42px; line-height: 42px; padding: 0 10px;}
    .nav_cate_list{ justify-content:center;  padding-bottom: 10px; }
    .nav_cate_list .nav_cate_li { width: auto;  margin:5px; }
    .nav_cate_list .nav_cate_li a{ padding:0 10px; }
    .navbar-nav ul.dropdown-menu > li > a{ width: auto; height: 32px; line-height: 32px !important;}
    .navbar-nav ul.dropdown-menu li .icon_more{ top:5px; }
    .case_li{ padding: 0; flex-wrap: nowrap; margin-bottom: 10px; display: block; } 
    .case_img{ width: 90px;  margin-right: 5px; flex-shrink: 0; }
    .case_li .case_text{ padding: 10px; flex: none; overflow: hidden; height: 90px; }
    .case_li .case_text .case_title{ font-size: 15px; line-height: 18px; }
    .case_li .case_text .cate_time{ line-height: 22px; }
    .case_li .case_text .case_desc{ display:none; }
    .case_li .case_text .case_more{ display:none; }
    .case_li .case_img{ float: left; margin-right: 0; height:90px; }
    .case_li .case_img img{ height:90px; }
    
    .page_main{  padding: 0; }
    .contact_main{ flex-wrap:wrap; }
    .contact_content{ padding:15px; height:auto; }
    .contact_main .contact_main_left{ flex: 0 0 100%; }
    .contact_main .contact_main_right{ flex: 0 0 100%;  }
    .contact_content .ct_title{ font-size:22px; }
    .contact_content .ct_title_linen{ margin-top:5px; margin-bottom:5px; }
    .contact_content .cts_title{ font-size:18px; }
    
    .article-text{ padding:15px; }
    
    .toplogo .toplogo_img .comm_img{ display:none; }
    .toplogo .toplogo_img .comm_img_wap{ display:block; }
    .index_main{ padding:15px 0 15px; }
    .main-content{ padding-top:70px; }
    .index_list {
        margin-top: 20px;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .index_cate_li {
        position: relative;
        margin-bottom: 20px;
        border: 1px solid #eee;
        transition-duration: 0.8s;
        width: 48%;
    }
    .index_flex{ flex-wrap:wrap; }
    .index_flex .about_img {
        width: 100%;
    }
    .index_flex .about_intro{ margin-left: 0px; margin-top: 10px; }
        
    .foot_nav{ display:none; }
    .cbox-75-0.p_item{ margin:0; padding:0;  }
    .e_richText-37{ display:none; }
    .e_richText-76{ margin-top:0; }
    .cbox-75-2.p_item{ padding:0 15px; margin-top:10px; display:none; }
    
    
    .foot_ewm img{ width:120px !important; }
    .e_container-69.s_layout{ text-align:center; }
    #content-container{ padding:15px; }
    .side_nav{ display:none; }
    .index_title{ }
    .wap_side_nav{ display:block; }
    
    .product-item .card .operate{ display:none; }
    
    .pro_header{ margin:0 !important; padding:0 !important; }
    .pro_details img{ max-width:100% !important; }
    
    .index_banner .swiper-slide img{
        width: 100%;
        height: 168px;
        object-fit: cover;
    }
    
    .list_banner img{ height:90px; }
    
}