.van-nav-bar{position:relative;z-index:1;line-height:22px;text-align:center;background-color:#fff;-webkit-user-select:none;user-select:none}.van-nav-bar--fixed{position:fixed;top:0;left:0;width:100%}.van-nav-bar--safe-area-inset-top{padding-top:constant(safe-area-inset-top);padding-top:env(safe-area-inset-top)}.van-nav-bar .van-icon{color:#1989fa}.van-nav-bar__content{position:relative;display:-webkit-box;display:-webkit-flex;display:flex;-webkit-box-align:center;-webkit-align-items:center;align-items:center;height:46px}.van-nav-bar__arrow{margin-right:4px;font-size:16px}.van-nav-bar__title{max-width:60%;margin:0 auto;color:#323233;font-weight:500;font-size:16px}.van-nav-bar__left,.van-nav-bar__right{position:absolute;top:0;bottom:0;display:-webkit-box;display:-webkit-flex;display:flex;-webkit-box-align:center;-webkit-align-items:center;align-items:center;padding:0 16px;font-size:14px;cursor:pointer}.van-nav-bar__left:active,.van-nav-bar__right:active{opacity:.7}.van-nav-bar__left{left:0}.van-nav-bar__right{right:0}.van-nav-bar__text{color:#1989fa}h1,h2,h3,h4,h5,p{margin:0}header{top:0;left:0;right:0;position:fixed;padding:.34rem;background-color:#fff;height:1.2rem;z-index:1}.hed_on{position:relative;height:100%;bottom:-.26rem}.one_im{position:absolute;width:.2rem;height:.4rem;bottom:.26rem;-webkit-transform:rotate(180deg);transform:rotate(180deg)}.header_one h2{margin:0 auto;padding-top:.4rem;text-align:center;font-weight:400;font-size:.45rem}