.zt_header{background-color: #fff;}
.zt_header .top{background-color: #184ba1;}
.header_main{width: 100%;max-width: 1200px;margin: 0 auto;padding: 12px 0;}
.header_main .logo{float: left;}
.header_main .logo img{width: 100%;}
.header_main .zt_navlist{float: right;}
.header_main .zt_navlist li{float: left;line-height: 58px;margin-right: 30px;}
.header_main .zt_navlist li:last-child{margin-right: 0;}
.menu{display: none;}


@media screen and (max-width: 800px){
    .zt_header{margin-top: 50px;}
    .header_main .zt_navlist{display: none;}
    .header_main{background-color: #edfaff;}
    .header_main .logo{margin-left: 20px;}
    .menu_show_mobile{top: 25px!important;}
    .m-nav{top: 6%;}
}