body{background:#fff!important}.add-subject{overflow:hidden}.add-subject .filter-box{position:fixed;top:0;left:0;right:0;background:#fff;height:50px;z-index:100}.add-subject .van-popup-warpper{height:100vh;width:200px;color:#606266}.add-subject .van-popup-warpper .title{font-size:16px;height:50px;line-height:50px;text-align:center;border-bottom:1px solid #c0c4cc}.add-subject .van-popup-warpper .item{font-size:14px;display:-webkit-box;display:-ms-flexbox;display:flex;height:50px;line-height:50px;border-bottom:1px solid #c0c4cc;padding:0 10px}.add-subject .van-popup-warpper .item .van-icon-checked{color:#409eff}.add-subject .back-top{position:fixed;z-index:10;bottom:30px;left:20px;height:30px;width:30px;line-height:30px;background:rgba(0,0,0,.3);border-radius:50%;text-align:center}.add-subject .back-top .icon-shangyi1{color:#0096f0}