.ckb{position:fixed;left:16px;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:30;max-width:560px;background:var(--s2);border:1px solid #3a3a44;border-radius:6px;padding:18px;font-size:14px;color:var(--mut);box-shadow:0 20px 50px #000}
.ckb[hidden]{display:none}.ckb div{display:flex;gap:10px;margin-top:14px}.ckb .btn{padding:10px 16px}