.about-header{border-bottom:1px solid #ddd;box-shadow:0px 2px 2px 0px rgba(0,0,0,0.1)}
.header-login{width:1080px;height:40px;margin:0 auto;padding:16px 0px}
.header-login dt{float:left;margin-right:40px}
.header-login dt a{display:block;width:100%;height:100%}
.header-login dt a img{width:100%;height:100%}
.header-login dd{height:40px;line-height:40px;margin-right:20px;float:left}
.header-login dd a{font-size:16px;color:#28292D}
.header-login dd a:hover{color:#FF620E}
.header-login .user-app{line-height:40px;font-size:14px;color:#666}
.header-login .user-app i{ display:inline-block;}
.header-login .user-app .ic-nav-appdown{width:12px;height:16px;margin-right:5px;margin-bottom:-2px;background:url("../images/ic_nav_appdown.png") no-repeat center center}
.header-login .user-app .app-down-code{display:none;width:180px;height:180px;position:absolute;margin-left:-110px;background:url("../images/pic_nav_ewm.png") no-repeat center center;-webkit-transition:0.3s;transition:0.3s;-webkit-transition:.5s;-moz-transition:.5s;z-index:9}