.rules_bg{background:url(../img/rule.db358e19.jpg) no-repeat 50%;background-size:100% 100%;width:100vw;height:100vh;position:relative;overflow:hidden;color:#fff}.w90{width:95%;margin:0 auto;margin-top:5vh}.w90 img{width:100%}.title{width:60%;margin:auto;margin-bottom:15px}.title img{width:100%}.rule{width:80%;margin:auto;border-radius:5%;margin-top:15px;padding-bottom:20px;height:50vh;overflow-y:auto}.rule p{color:#fff;font-size:14px;line-height:2em;font-weight:700;margin-left:10px;margin-right:10px}.img{position:absolute;right:0;bottom:0;width:50%}.img img{width:100%}.index_bg{overflow:hidden;width:80vw;margin:auto}.index_bg .btn{width:40vw;float:left;margin-top:57vh}.index_bg .btn .butt{width:32vw;margin:auto}.index_btn{font-size:5vw;border-radius:25px}.index_btn,.index_btn:first-child{margin-top:3vh}.index_btn img{width:100%;height:100%}.van-button--default{background-color:hsla(0,0%,100%,0);border:unset}.l-captcha{margin:10px auto}.ppppp{line-height:30px;text-indent:1em;font-size:12px;color:#666}