:root{--van-back-top-size:40px;--van-back-top-right:30px;--van-back-top-bottom:40px;--van-back-top-z-index:100;--van-back-top-icon-size:20px;--van-back-top-text-color:#fff;--van-back-top-background:var(--van-blue)}.van-back-top{position:fixed;display:flex;align-items:center;justify-content:center;width:var(--van-back-top-size);height:var(--van-back-top-size);right:var(--van-back-top-right);bottom:var(--van-back-top-bottom);z-index:var(--van-back-top-z-index);cursor:pointer;color:var(--van-back-top-text-color);border-radius:var(--van-radius-max);box-shadow:0 2px 8px rgba(0,0,0,.12);transform:scale(0);transition:var(--van-duration-base) cubic-bezier(.25,.8,.5,1);background-color:var(--van-back-top-background)}.van-back-top:active{opacity:var(--van-active-opacity)}.van-back-top__placeholder{display:none}.van-back-top--active{transform:scale(1)}.van-back-top__icon{font-size:var(--van-back-top-icon-size);font-weight:var(--van-font-bold)}:root{--van-empty-padding:var(--van-padding-xl) 0;--van-empty-image-size:160px;--van-empty-description-margin-top:var(--van-padding-md);--van-empty-description-padding:0 60px;--van-empty-description-color:var(--van-text-color-2);--van-empty-description-font-size:var(--van-font-size-md);--van-empty-description-line-height:var(--van-line-height-md);--van-empty-bottom-margin-top:24px}.van-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;box-sizing:border-box;padding:var(--van-empty-padding)}.van-empty__image{width:var(--van-empty-image-size);height:var(--van-empty-image-size)}.van-empty__image img{width:100%;height:100%}.van-empty__description{margin-top:var(--van-empty-description-margin-top);padding:var(--van-empty-description-padding);color:var(--van-empty-description-color);font-size:var(--van-empty-description-font-size);line-height:var(--van-empty-description-line-height)}.van-empty__bottom{margin-top:var(--van-empty-bottom-margin-top)}.van-theme-dark .van-empty{opacity:.5}.card-goods{padding:10px 0;background-color:#fff}.card-goods__item{position:relative;background-color:#fafafa}.card-goods__item .van-checkbox__label{width:100%;height:auto;padding:0 10px 0 15px;box-sizing:border-box}.card-goods__item .van-checkbox__icon{top:50%;left:10px;z-index:1;position:absolute;margin-top:-10px}.card-goods__item .van-card__price{color:#f44}