.case-back-top{position:fixed;right:24px;bottom:24px;z-index:90;display:flex;align-items:center;gap:10px;min-height:48px;padding:0 18px;border:1px solid #ffffff40;border-radius:28px;background:#151515;color:#fff;font:600 13px 'Inter',sans-serif;cursor:pointer;box-shadow:0 4px 18px #0002}.case-back-top[hidden]{display:none}.case-back-top>span:first-child{font-size:20px}.case-back-top:hover{background:#333}.case-back-top:focus-visible{outline:3px solid #2346ed;outline-offset:4px}@media(max-width:768px){.case-back-top{right:16px;bottom:max(16px,env(safe-area-inset-bottom));padding:0 15px}}