@media screen and (max-width:1220px){
.f_bg .f_m , .f_bg .bq_bg .bq , .i_solution , .pro_m , .header .head , .scd,.dhk,.thumbnailWrapper,.cpk ,.tab, .tab-cont ,.tab-cont .item,.ftk,.brt-about,.yw-news {width:960px;}
.head .nav{ margin-left:00px; width:500px;}
.head .nav li{ margin-right:0px;}
.head .nav li a{ padding:0 3px;}


}
@media screen and (max-width:980px){
.f_bg .f_m , .f_bg .bq_bg .bq , .i_solution , .pro_m , .header .head , .scd,.dhk,.thumbnailWrapper {width:740px; margin:0px auto;}
.head .nav{ margin-left:00px; width:550px;}
.head .nav li{ margin-right:0px;}
.head .nav li a{ padding:0 10px; font-size:14px;}
.head .logo{ width:150px;}
.head .logo img{  margin-top:5px; width:150px;}

}
@media screen and (max-width:770px) {
.dhbgk {width:480px; margin:0px auto;}
.head .nav{ display:none;}
.head .nav_m{ display:block; width:480px;}
.header .head{ position:relative; height:auto;}
.header .head .logo{ margin-bottom:30px;}
.head .search{ margin-right:80px; margin-top:30px;}
.head .nav_m{ clear:both; margin-top:30px;}

}
@media screen and (max-width:500px) {
.dhbgk,.index_2 {width:320px; margin:0px auto;}
.header .head .logo{ width:100%; float:none; margin-bottom:00px;margin-top:00px; height:20px;}
.header .logo img{  vertical-align:top; margin-top:15px; width: 120px;}
.head .nav_m{ clear:both; margin-top:40px; width: 320px;}
.nav_m .n_icon{ top:-35px;}
.dhbg { width: 100%; height: 60px; border-bottom:5px solid #0093DD ;}
.lxdh { display: none;}

.index_2_l{ width:320px;  float:none; margin: 0 auto;}
.index_2_r{ width:320px;  float:none; margin: 0 auto;}
.index_3 { margin-top: 50px; width: 320px;}
.index_3_l{ width:300px; height:70px; float:none;}
.index_3_r{  display: none; }
.index_4_nr,.index_42 { display: none;}
.index_4{ width:100%; height:200px; background:none no-repeat center;}

.cpxl { display: block;}
.index_6 { width: 320px; height: 500px;}
.index_6_l{ width:320px; height:240px; float:none; margin: 0 auto;}
.index_6_r{ width:320px; height:240px; float:none; margin: 0 auto; display: none;}
.index_6_l_l { float: none;}
.index_6_l_r { float:none; }

.dnfoot,.cpjg,.lbwhtop{ display: none;}
.sjfoot2 { display: block;}

.zjlbtop,.bz,.gsjj,.nr_zj,.lbdtnr_zj,.lbdtnr_zj2,.nr_w,.lbwhtop,.lbwh,.topxbj { width: 320px;}
.nr_zj img,.topxbj { display: none;}
.zjlbtop img { width: 100%;}
.lbwhjg1{  height:20px;}

#main #left { width: 320px; margin: 0 auto;}
#main #right { display: none; }
.cpbg { width: 320px; margin-left: 15px;}
.cplb ul li { float: left; text-align: center; margin: 5px;}

.aboutjg2{  height:20px;}
.lbwhjg3{ height:20px;}
}