:root{color-scheme:dark;--ink:#f0eee8;--muted:#aaa79f;--line:#2b2c2e;--accent:#d2ff5a;--panel:#141517}*{box-sizing:border-box}body{margin:0;background:#0d0e0f;color:var(--ink);font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif}button,textarea{font:inherit}.shell{min-height:100dvh;display:grid;grid-template-columns:minmax(260px,.8fr) minmax(480px,1.2fr)}.intro{position:relative;display:flex;flex-direction:column;justify-content:center;padding:8vw;overflow:hidden;border-right:1px solid var(--line);background:radial-gradient(circle at 20% 70%,#26302e 0,#121315 35%,#0d0e0f 72%)}.intro:before{content:"R";position:absolute;right:-6vw;top:-15vw;font-size:56vw;line-height:1;color:rgba(255,255,255,.025);font-family:Georgia,serif}.eyebrow{color:var(--accent);font-size:11px;font-weight:700;letter-spacing:.2em;z-index:1}h1{margin:18px 0 8px;font-size:clamp(48px,7vw,100px);line-height:.88;letter-spacing:-.08em;z-index:1}h1 span{color:var(--accent)}.intro p{margin:0;color:var(--muted);font-size:14px;z-index:1}.intro small{margin-top:28px;color:#74746f;font-size:12px;z-index:1}.portrait{position:absolute;width:36vw;height:36vw;min-width:260px;min-height:260px;max-width:470px;max-height:470px;right:-15vw;bottom:-8vw;border-radius:50%;border:1px solid rgba(210,255,90,.2);background:repeating-radial-gradient(circle at center,transparent 0 20px,rgba(210,255,90,.08) 21px 22px),linear-gradient(145deg,#3f4944,#141817 56%,#737b62);opacity:.8}.portrait i{position:absolute;inset:19%;border-radius:50%;background:linear-gradient(160deg,transparent 30%,rgba(210,255,90,.52)),#242a27;filter:blur(1px)}.chat{display:grid;grid-template-rows:auto 1fr auto auto;min-height:100dvh;max-height:100dvh;background:#101112}.chat header{display:flex;align-items:center;justify-content:space-between;padding:28px 32px 22px;border-bottom:1px solid var(--line)}.chat header p{margin:0;color:#d4d1c8;font-size:14px}.status{font-size:12px;color:var(--muted)}.status b{display:inline-block;width:7px;height:7px;background:var(--accent);border-radius:50%;margin-right:7px;box-shadow:0 0 12px var(--accent)}.messages{padding:28px clamp(20px,5vw,70px);overflow-y:auto;display:flex;flex-direction:column;gap:14px}.message{max-width:min(560px,84%);padding:13px 16px;border-radius:15px;font-size:15px;line-height:1.6;white-space:pre-wrap}.message.assistant{align-self:flex-start;background:#1c1e20;border:1px solid #292b2e;border-bottom-left-radius:3px}.message.user{align-self:flex-end;background:var(--accent);color:#151710;border-bottom-right-radius:3px}.typing{display:flex;gap:5px;align-items:center;min-height:48px}.typing i{width:5px;height:5px;border-radius:50%;background:var(--muted);animation:bounce .9s infinite alternate}.typing i:nth-child(2){animation-delay:.18s}.typing i:nth-child(3){animation-delay:.36s}@keyframes bounce{to{transform:translateY(-5px);opacity:.4}}.starters{display:flex;gap:8px;flex-wrap:wrap;padding:0 clamp(20px,5vw,70px) 16px}.starters button{border:1px solid #3a3d3b;color:#d4d1c8;background:transparent;border-radius:99px;padding:8px 12px;font-size:12px;cursor:pointer}.starters button:hover{border-color:var(--accent);color:var(--accent)}.composer{display:flex;gap:10px;align-items:flex-end;padding:16px clamp(20px,5vw,70px) 28px;border-top:1px solid var(--line)}.composer textarea{resize:none;min-height:48px;max-height:140px;flex:1 1;color:var(--ink);padding:13px 16px;border:1px solid #333638;border-radius:8px;outline:none;background:#191b1d;line-height:1.4}.composer textarea:focus{border-color:#809641}.composer button{width:48px;height:48px;border:0;border-radius:50%;color:#18200e;background:var(--accent);font-size:22px;cursor:pointer}.composer button:disabled{cursor:not-allowed;opacity:.35}@media (max-width:760px){.shell{grid-template-columns:1fr}.intro{min-height:245px;padding:44px 28px;border-right:0;border-bottom:1px solid var(--line)}.portrait{width:220px;height:220px;min-width:0;min-height:0;right:-50px;bottom:-75px}.chat{min-height:calc(100dvh - 245px);max-height:none}.messages{min-height:340px}.chat header{padding:18px 22px}.composer{padding:14px 20px 20px}}