@media screen and (max-width: 1400px){
  .yin_t{font-size: 35px}
  .ibrand-num li span{font-size: 48px}
  .about dl dd h5 a{font-size: 35px}
  .f_nav{display: none}

}
@media screen and (max-width: 1200px){
  .h_tel{display: none}
  .h_con .h_dw{display: none}
  .isear{display: none}
  .h_nav li{width: 100%;padding: 0}
  .h_nav li .erji{display: none!important;}
  .h_nav li a{width: 100%}
  .h_con .logo{padding: 10px}
  .yin_t{font-size: 28px}
  .yin{padding: 70px 0 0}
  .yin_t{height: auto}
  .ibrand-num li i{display: none}
  .ibrand-num li span{font-size: 35px}
  .five{padding: 40px 0 0;display: none}
  .five_m{margin-top: 50px}
  .five_m{display: none}
  .five_mobile{display: block}
  .five{height: auto}
  .chanp{padding: 30px 0 20px}
  .chanp .yin_t{margin-bottom: 30px}
  .chanp dl dd h5 a{font-size: 23px}
  .case{padding: 50px 0 30px}
  .ys dl dt h4{font-size: 20px;line-height: 3}
  .liuc{display: none}
  .news_t a{font-size: 30px}
  .news_c dl dt{font-size: 30px}
  .about dl dt{width: 100%;position: initial;height: auto}
  .about dl dd{padding: 20px 0 0}
  .about dl dd h5 a{font-size: 28px}
  .about dl dd{width: 100%}
  .about dl dd em{margin: 0}
  .about dl dd span{padding: 20px 0}
  .nav_m {position: relative;width: 40px;height: 40px;float: right;margin-top: 20px;cursor: pointer}
  .nav_m span {position: absolute;left: 0;width: 30px;height: 2px;background-color: #015198;transition: .3s;-webkit-transition: .3s}
  .nav_m span:nth-child(1){top: 0px}
  .nav_m span:nth-child(2){top: 10px}
  .nav_m span:nth-child(3){top: 20px}
  .nav_on span:nth-child(1){transform: rotate(45deg);top: 10px}
  .nav_on span:nth-child(2){width: 0}
  .nav_on span:nth-child(3){transform: rotate(-45deg);top: 10px}
  .h_nav{display: none}
  .open {display: block}
  .p1-search-1 p{line-height: 1.5}
  .blk{margin-bottom: 0}
  .p1-search-1{height: auto;padding: 15px 0}
  .p14-left-nav-1-tit h3{font-size: 20px}
  .p14-left-nav-1-nav-one h3 a{margin: 0 40px 0 1% }
  .p14-left-nav-1-nav dt{padding: 0}
  .contact-z1 p{padding: 20px 0 0 0 }
  .contact-z1 span{padding: 0}
  .blk-sm h2{font-size: 20px}
  .title h2{font-size: 22px}
  .title span{font-size: 16px}
  .about_w h2{font-size: 22px}
  .sji{font-size: 25px}
  .yinz dd h3{font-size: 20px}
  .jianj02 dl dd h3{font-size: 22px}
  .p15-infocontent-1-tit{font-size: 22px}
}
@media screen and (max-width: 718px){
  .header, .content, .footer{width: 98%;padding: 0 1%}
  .ibrand-num{margin: 0 0 0}
  .yin_t{font-size: 18px}
  .yin p{font-size: 14px}
  .yin{padding: 20px 0 0}
  .yin_t em{padding: 0 0 0}
  .ibrand-num li{width: 50%}
  .ibrand-num li span{font-size: 20px}
  .ibrand-num li{font-size: 14px}
  .yin_t span{font-size: 14px}
  .five{padding: 20px 0 0}
  .five_m{margin-top: 20px}
  .chanp{padding: 20px 0}
  .chanp .yin_t{margin-bottom: 20px}
  .chanp dl{width: 48%;margin: 0 1% 5px}
  .chanp dl dt{width: 100%}
  .chanp dl dd{width: 100%;padding: 0;text-align: center}
  .chanp dl dd h5 a{font-size: 18px}
  .chanp dl dd h5 i{padding: 0}
  .chanp dl dd span img {max-width: 80%}
  .case{padding: 30px 0 20px}
  .case_t ul li{width: calc(94% / 3);margin: 0 1%}
  .case_t ul li a{font-size: 16px}
  .case .case_l dl, .case .case_l dl dt, .case .case_l dl dt img{height: auto}
  .case .case_l dl dd{display: none}
  .case dl{margin:5px 1%;}
  .case dl dd{display: none}
  .case dl dt h4{width: 100%;padding: 0}
  .case dl dt img{height: auto}
  .case_l{width: 100%}
  .case_r{width: 100%}
  .chanp dl dd em{display: none}
  .chanp dl dd p{display: none}
  .chanp dl dd span{display: none}
  .ys{padding-top: 30px}
  .ys dl dt h4{font-size: 16px}
  .ys dl dd{display: none!important;}
  .ys dl dt h4 em img{width: 30px;height: 30px}
  .ys dl{width: 48%}
  .case .case_l dl dt h4{width: 100%}
  .news_t a{font-size: 18px}
  .news_c dl dd h5 a{font-size: 16px}
  .news_t span{font-size: 14px}
  .news_c dl dt{font-size: 18px}
  .news_t{width: 100%}
  .news_c{width: 100%}
  .news_r{width: 100%;padding-top: 20px}
  .news_father{padding: 0 5px}
  .news_father-next, .news_father-prev{display: none}
  .news_t{line-height: 1}
  .wd_l{width: 100%}
  .wd_r{width: 100%}
  .wd_l ul li{float: left;width: 48%;margin: 0 1%}
  .wd_r ul li a{float: none}
  .about dl dd h5 a{font-size: 18px}

  .photo_t{width: 100%}
  .photo_t ul li{float: left;width: 30%;margin: 0 1%}
  .photo_m{width: 100%}
  .photo_m ul li{width: 48%}
  .f_ban{display: none}
  .f_er{display: none}
  .f_logo{width: 100%}
  .p1-search-1-inp{display: none}
  .p14-left-nav-1-tit h3{font-size: 18px}
  .blk-xs{display: none}
  .blk-sm{width: 100%}
  .k12-xl-xwlb-1nt2-1-01-list dl{padding: 0;width: 100%}
  .k12-xl-xwlb-1nt2-1-01-list dt{width: 100%;float: none}
  .k12-xl-xwlb-1nt2-1-01-list dd{
    width: 100%;
  }
  .blk-sm h2{font-size: 18px}
  .pro_list li{width: 48%}
  .pro_list li p{font-size: 14px}
  .p15-infolist-1-t1{padding: 20px 0 0 0}
  .tl-fdh-02 li{width: 33.3%;margin-bottom: 10px;font-size: 16px}
  .title h2{font-size: 18px}
  .about{padding: 20px 0}
  .about_p{width: 100%}
  .about_w{width: 100%}
  .about_w1{padding: 0 1%}
  .about_w h2{font-size: 18px}
  .about_w4{width: 70%;margin: 0}
  .sji{font-size: 18px}
  .pf{font-size: 14px}
  .zdmj{font-size: 14px}
  .mj{ width: calc(50% - 2px);margin-bottom: 20px}
  .mj_title{margin: 20px 0 30px}
  .yinz dd{width: 98%;padding: 20px 1%}
  .yinz dd h3{font-size: 18px;text-align: center}
  .yinz dt{width: 100%}
  .yinz dd p{font-size: 14px}
  .jianj02 dl dd h3{font-size: 18px}
  .jianj02 dl dt{width: 100%}
  .jianj02 dl dd{width: 100%}
  .tit{font-size: 18px}
  .eng{font-size: 16px}
  .ys1 dl{width: 100%}
  .ys1 dl dd {height: auto}
  .kfay dt{display: none}
  .kfay dd{width: 100%}
  .lxwm_con{width: 100%}
  .lxwm_map{width: 100%}
  .p4-order-form-1-con{padding: 20px 1%}
  .p4-order-form-1-con label{width: auto}
  .p4-order-form-1-con .inputs, .p4-order-form-1-con li select{width: 100%}
  .p4-order-form-1-t1 textarea{width: 100%}
  .code_gg_li img{width: 60px;height: auto}
  .gywmlb-tl-ts-01-left dl{width: 49%}
  .k12-gl-gslb-3nf1-1-01-left dl{width: 48%}
  .p15-infocontent-1-tit{font-size: 18px}
  .p14-info-3-tit{font-size: 20px}
  .p14-product-2-list dl{width: 48%}
  .p14-product-2-tit b{font-size: 18px}
  .cpcc-ts-01-left{width: 100%;margin-left: 0}
  .cpcc-ts-01-right{width: 100%;margin-right: 0}
  .cpcc-ts-01-right-tit{font-size: 18px}
  .pc-cx-tel-1{width: 100%}
  .pc-cx-tel-1-t2{font-size: 14px}

}