.ckb{position:fixed;left:50%;bottom:16px;z-index:70;transform:translateX(-50%);display:flex;align-items:center;gap:16px 24px;width:min(860px,calc(100% - 32px));padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:0 20px 50px -18px rgba(15,26,34,.4);animation:ckb-in .25s ease-out}:root[data-theme=dark] .ckb{box-shadow:0 20px 50px -14px rgba(0,0,0,.7)}.ckb-text{flex:1 1;min-width:0}.ckb-text strong{display:block;margin-bottom:2px}.ckb-text p{margin:0;font-size:.9rem;color:var(--muted)}.ckb-text a{color:var(--accent);font-weight:600}.ckb-actions{display:flex;gap:10px;flex:none}.ckb-btn{font:inherit;font-weight:600;padding:10px 20px;border-radius:10px;cursor:pointer;color:var(--accent-ink);background:var(--accent);border:1px solid var(--accent)}.ckb-btn:hover{filter:brightness(1.08)}.ckb-btn.ghost{color:var(--ink);background:transparent;border-color:var(--line)}.ckb-btn.ghost:hover{filter:none;border-color:var(--ink)}@keyframes ckb-in{0%{opacity:0;transform:translate(-50%,12px)}}.ckb-link{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}.ckb-link:hover{color:var(--accent)}@media (max-width:640px){.ckb{flex-direction:column;align-items:stretch;bottom:10px;width:calc(100% - 20px);padding:14px}.ckb-actions .ckb-btn{flex:1 1}}@media (prefers-reduced-motion:reduce){.ckb{animation:none}}