.main-header{left:0;position:absolute;top:0;width:100%;z-index:100}.main-header-wrap{align-items:center;display:flex;height:1.26rem;justify-content:space-between;margin:0 auto;max-width:13rem;padding-top:.2rem;width:100%}.main-header-wrap .left{flex-shrink:0;width:46%}.main-header-wrap .right{display:flex;flex-grow:1;flex-shrink:0;flex-wrap:wrap}.backup{animation:more 2s infinite;bottom:.3rem;color:#ff792b;cursor:pointer;position:fixed;right:.3rem;text-align:center;width:.6rem}.backup:before{content:"top";font-size:1.2em;line-height:1.4}