.head-bg[data-v-ba0813da]{background-image:url(/img/help/newlesson/main_bg@2x.png);height:48vw;width:100vw;background-size:100% 100%;padding-top:5vw}.head-bg p[data-v-ba0813da]{font-size:21px;font-weight:700;color:#fff;line-height:27px;text-align:center;width:270px}