input::-webkit-input-placeholder{color:#b4b2b2}input:-moz-placeholder{color:#b4b2b2}input::-moz-placeholder{color:#b4b2b2}input:-ms-input-placeholder{color:#b4b2b2}.yys{width:100%;background-color:#f7f8f8}.backbtn{display:block;width:1.39rem;height:.36rem;background:#3c3c3c;font-size:.15rem;text-align:center;line-height:.36rem;color:#fff;margin:1.5rem auto;font-weight:400}a.backbtn{position:relative}a.backbtn span{position:relative;z-index:20}a.backbtn::before{position:absolute;content:'';width:0;height:100%;background-color:#e10012;left:0;-webkit-transition:all .5s;transition:all .5s}a.backbtn:hover::before{width:100%}a.backbtn:hover{color:#fff!important}.mains{background-color:#f7f8f8}.yyss{width:13.1rem;margin:0 auto}.yysa{width:100%;height:.58rem;line-height:.58rem;text-align:center;font-size:.33rem;font-weight:700;color:#000}.yysb{width:100%;text-align:center;font-size:.15rem;color:#000;border-bottom:.01rem #bdbdbd solid}.yysc{margin-top:.08rem;padding-top:.35rem;width:100%;line-height:.35rem;text-align:left;font-size:.16rem;color:#000}.yyse{margin-top:.08rem;padding-top:.35rem;width:100%;line-height:.35rem;text-align:left;font-size:.16rem;color:#bdbdbd}