:root{--paper:#fbfaf7;--paper-2:#f2f0ea;--ink:#18201d;--muted:#5c665f;--faint:#8a938c;--line:#e5e3da;--primary:#0f6e64;--primary-ink:#0a4c45;--primary-soft:#e8f1ef;--gold:#a97e34;--danger:#9c3327;--sans:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--serif:"Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif}*{box-sizing:border-box}html,body{height:100%}body{background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;margin:0;font-size:16px;line-height:1.6}.app{flex-direction:column;height:100dvh;display:flex}.embed .appbar{display:none}.appbar{border-bottom:1px solid var(--line);background:color-mix(in srgb, var(--paper) 90%, transparent);-webkit-backdrop-filter:saturate(1.2)blur(6px);backdrop-filter:saturate(1.2)blur(6px);flex:none}.appbar-in{flex-wrap:wrap;align-items:center;gap:8px;max-width:760px;margin:0 auto;padding:12px 16px;display:flex}.iconbtn{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:8px;flex:none;width:32px;height:32px;font-size:14px;line-height:1}.iconbtn:hover{border-color:var(--primary)}.mark{align-items:center;gap:10px;display:flex}.mark .dot{background:var(--primary);width:10px;height:10px;box-shadow:0 0 0 4px var(--primary-soft);border-radius:50%}.mark .name{letter-spacing:.2px;font-size:15px;font-weight:700}.mark .name small{color:var(--faint);letter-spacing:0;font-size:11.5px;font-weight:500;display:block}.badge{color:var(--primary-ink);background:var(--primary-soft);border:1px solid color-mix(in srgb, var(--primary) 18%, transparent);border-radius:999px;margin-right:auto;padding:3px 9px;font-size:11px}.newbtn{border:1px solid var(--line);color:var(--muted);cursor:pointer;background:#fff;border-radius:8px;padding:5px 11px;font-family:inherit;font-size:12.5px}.newbtn:hover{border-color:var(--primary);color:var(--primary-ink)}.lang{gap:4px;display:flex}.lang button{border:1px solid var(--line);color:var(--muted);cursor:pointer;background:#fff;border-radius:8px;padding:4px 10px;font-family:inherit;font-size:12.5px}.lang button.on{background:var(--primary-soft);color:var(--primary-ink);border-color:color-mix(in srgb, var(--primary) 25%, transparent)}.chat{flex-direction:column;flex:auto;min-height:0;display:flex}.chat-in{flex-direction:column;flex:auto;width:100%;max-width:760px;min-height:0;margin:0 auto;display:flex}.msgs{flex-direction:column;flex:auto;gap:12px;min-height:0;padding:20px 16px;display:flex;overflow-y:auto}.msg{white-space:pre-wrap;border-radius:14px;max-width:82%;padding:11px 14px;font-size:15px;line-height:1.55}.msg.u{background:var(--primary);color:#fff;border-bottom-right-radius:5px;align-self:flex-end}.msg.a{border:1px solid var(--line);background:#fff;border-bottom-left-radius:5px;align-self:flex-start}.msg .cite{color:var(--faint);margin-top:8px;font-size:11.5px;display:block}.hello{text-align:center;margin:auto 0;padding:8px 10px 4px}.hello .big{font-family:var(--serif);margin:0 0 6px;font-size:22px}.hello p{color:var(--muted);max-width:460px;margin:0 auto 16px;font-size:14.5px}.hello .choose{color:var(--faint);margin:4px auto 10px;font-size:13px}.topicgrid{grid-template-columns:repeat(2,1fr);gap:8px;max-width:460px;margin:0 auto;display:grid}.topicgrid button{border:1px solid var(--line);color:#2a332e;cursor:pointer;text-align:left;background:#fff;border-radius:10px;padding:10px 12px;font-family:inherit;font-size:13.5px}.topicgrid button:hover{border-color:var(--primary);color:var(--primary-ink);background:var(--primary-soft)}.overlay{z-index:80;background:#141c1866;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.sheet{background:#fff;border-radius:16px;width:100%;max-width:460px;max-height:84vh;overflow-y:auto;box-shadow:0 24px 60px #0000004d}.sheet-h{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;padding:14px 16px;display:flex;position:sticky;top:0}.sheet-h .x{cursor:pointer;color:var(--faint);background:0 0;border:none;font-size:22px}.sheet .topicgrid{padding:16px}.helpbox{padding:8px 18px 20px}.helpbox h4{color:var(--primary-ink);margin:16px 0 6px;font-size:14px}.helpbox p{color:#2a332e;margin:0;font-size:14px}.helpbox ul{margin:0;padding-left:18px}.helpbox li{margin-bottom:4px;font-size:14px}.fbthanks{color:var(--primary-ink);font-size:11.5px}.sugg{flex-wrap:wrap;justify-content:center;gap:8px;padding:0 16px 8px;display:flex}.sugg button{border:1px solid var(--line);color:#2a332e;cursor:pointer;background:#fff;border-radius:999px;padding:8px 13px;font-family:inherit;font-size:13.5px}.sugg button:hover{border-color:var(--primary);color:var(--primary-ink)}.follow{flex-wrap:wrap;align-items:center;gap:8px;padding:2px 2px 4px;display:flex}.follow-l{color:var(--faint);font-size:12px}.follow button{border:1px solid var(--line);color:#2a332e;cursor:pointer;text-align:left;background:#fff;border-radius:999px;padding:7px 12px;font-family:inherit;font-size:13px}.follow button:hover{border-color:var(--primary);color:var(--primary-ink)}.msg .body{display:block}.msg.a .tools{gap:6px;margin-top:8px;display:flex}.msg.a .tools button{border:1px solid var(--line);background:var(--paper);color:var(--muted);cursor:pointer;border-radius:7px;padding:3px 8px;font-family:inherit;font-size:11.5px}.msg.a .tools button:hover{border-color:var(--primary);color:var(--primary-ink)}.composer{border-top:1px solid var(--line);background:var(--paper);flex:none;align-items:flex-end;gap:8px;padding:12px 16px;display:flex}.composer textarea{border:1px solid var(--line);resize:none;background:#fff;border-radius:14px;outline:none;flex:1;max-height:140px;padding:11px 14px;font-family:inherit;font-size:15px;line-height:1.4;overflow-y:auto}.composer textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}.micbtn{border:1px solid var(--line);cursor:pointer;width:44px;height:44px;color:var(--muted);background:#fff;border-radius:12px;flex:none;font-size:17px}.micbtn:hover{border-color:var(--primary)}.micbtn.on{background:var(--danger);color:#fff;border-color:var(--danger);animation:1s infinite pulse}@keyframes pulse{0%,to{box-shadow:0 0 #9c332766}50%{box-shadow:0 0 0 6px #9c332700}}.composer button[type=submit]{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:12px;flex:none;height:44px;padding:0 20px;font-family:inherit;font-size:15px;font-weight:600}.composer button[type=submit]:disabled{opacity:.45;cursor:default}.disc{color:var(--faint);text-align:center;flex:none;padding:0 16px 12px;font-size:11.5px}.typing{gap:4px;display:inline-flex}.typing i{background:var(--faint);border-radius:50%;width:6px;height:6px;animation:1.2s infinite blink}.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}@keyframes blink{0%,60%,to{opacity:.25}30%{opacity:1}}@media (max-width:480px){.msg{max-width:88%}}