#AboutSystem.top{padding-top:50px}#AboutSystem.noTop{padding-top:0}#AboutSystem .tab{margin:50px 0;width:100%;overflow:hidden}#AboutSystem .tab li{list-style:none;float:left;border-bottom:2px solid #ddd;padding:7px 15px;font-size:18px}#AboutSystem .tab li.current{border-bottom-color:#f80;color:#f80}#AboutSystem section{display:none;margin-bottom:100px}#AboutSystem section.current{display:block}#AboutSystem section .listWord .title{line-height:45px;color:#000;font-size:16px}#AboutSystem section .listWord .content{line-height:30px;color:#999;font-size:14px}