@charset "UTF-8";.box-center{width:750px;margin-left:auto;margin-right:auto}.fl{float:left}.fr{float:right}.mr0{margin-right:0}.mr10{margin-right:10px}.mr30{margin-right:30px}.mb10{margin-bottom:10px}.mb20{margin-bottom:20px}.mb30{margin-bottom:30px}.mb35{margin-bottom:35px}.mb40{margin-bottom:40px}.mb45{margin-bottom:45px}.mb50{margin-bottom:50px}.mb60{margin-bottom:60px}.hidden{display:none}.cf{zoom:1}.cf:after,.cf:before{display:table;content:''}.cf:after{clear:both}.dib-wrap{font-size:0;*word-spacing:-1px}.dib-wrap a,.dib-wrap span{display:inline-block;vertical-align:top;letter-spacing:normal;word-spacing:normal}.dib-box a,.dib-box span{display:inline-block;vertical-align:top;letter-spacing:normal;word-spacing:normal}.blue-btn{display:block;width:120px;height:40px;font:16px/38px PingFangSC-Regular,HelveticaNeue-Light,"Helvetica Neue Light","Microsoft YaHei",sans-serif;background:#005df7;color:#fff;text-align:center;transition:font-size .3s,background .3s}.blue-btn:hover{font-size:17px;background:#0251d5}