.center-box{min-height:1050px;text-align:center}.nav-box{background-color:#2893fb;margin-top:-6px}.nav-box .header-nav{height:60px;line-height:60px;background-color:#2893fb;color:#fff}.auto-center{margin-left:auto;margin-right:auto;width:1200px}.flex_e{-webkit-box-pack:end;-ms-flex-pack:end;justify-content:flex-end}.flex_b,.flex_e{display:-webkit-box;display:-ms-flexbox;display:flex}.flex_b{-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between}ul li{list-style:none}.arrow-row{position:relative}.arrow-row span{display:inline-block;width:0;height:0;border-left:12px solid transparent;border-right:12px solid transparent;border-top:12px solid #2893fb;position:absolute;top:0}.dynamic-list{width:100%;-ms-flex-wrap:wrap;flex-wrap:wrap;padding-bottom:40px}.flex-s{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:start;-ms-flex-pack:start;justify-content:flex-start}.content-tip{width:31.2%;height:405px;margin-bottom:30px;margin-right:1.7%;cursor:pointer;border-radius:8px;border:1px solid #e8e8e8}.tip-top{height:225px;border-top-left-radius:8px;border-top-right-radius:8px}.tip-bottom{padding:16px}.tip-bottom p{line-height:25px;text-align:left}.thickening_text{font-weight:700}.secondary_text{color:#969799}.nav-box .header-nav ul li{cursor:pointer}