.header{background:0 0;font-size:14px;height:68px;line-height:50px;padding:10px;position:fixed;top:0;left:0;right:0;z-index:500;min-width:1335px}.header.color1.border{border-bottom:1px #d3d3d3 dotted}.logo{float:left;margin-left:110px}.logo .brand_logo{background:url(../img/neptune-logo-white.png);width:37px;height:37px;display:inline-block;margin-top:0;background-size:100%}.logo .brand_name{color:#fff;font-size:22px;display:inline-block;margin-top:0;vertical-align:top;padding-left:17px}.header.color1{color:#6f6f6f;background:#F9FAFC}.header.color1 .brand_logo{background:url(../../../index/web/img/left-logo.png);background-size:cover}.header.color1 .brand_name{color:#6f6f6f}.header_right{font-size:16px;padding:0;list-style:none;float:right;margin:0 100px 0 0}.header_right a{display:block;padding:0 40px;color:#fff}.header.color1 .top_li a{color:#6f6f6f}.top_li{float:left;height:50px;position:relative;display:inline;border-bottom:2px solid transparent}.top_li:before{content:"";position:absolute;left:50%;bottom:-10px;width:0;height:2px;background:#fff;transition:all .2s}.top_li:hover:before{width:100%;left:0;right:0}.header.color1 .top_li:hover:before{background:#67a4ff}.header_btn:hover,li:hover{color:#fff}.top_li.bottom--white:hover:after{background-color:#fff}