.how-to-back-top{z-index:40;cursor:pointer;width:44px;height:44px;color:var(--text-1,#fff);background-color:#2e3033;border:none;border-radius:9999px;flex-shrink:0;justify-content:center;align-items:center;transition:background-color .2s;display:flex;position:fixed;inset:auto 42px 160px auto;transform:translateZ(0);box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -4px #0000001a}.how-to-back-top:hover{background-color:var(--bg-3,#323439)}[dir=rtl] .how-to-back-top{left:34px;right:auto}.how-to-back-top__icon{justify-content:center;align-items:center;font-size:23px;line-height:1;display:inline-flex}.how-to-back-top__icon .lbank-iconfont{font-size:inherit}@media (min-width:780px){.how-to-back-top{width:60px;height:60px;bottom:252px;right:34px}[dir=rtl] .how-to-back-top{left:34px}.how-to-back-top__icon{font-size:32px}}