:root{--bg:#f6f7fb;--c:#fff;--t:#0f1115;--m:#6b7280;--b:#e5e7ee;--p:#0f1115;--pt:#fff;--a:#2563eb}
[data-theme=dark]{--bg:#0e0f12;--c:#16181d;--t:#f2f3f5;--m:#8b919c;--b:#262a31;--p:#f2f3f5;--pt:#0e0f12;--a:#6d97ff}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--t);font:15px/1.45 Inter,system-ui,-apple-system,sans-serif}
#app{display:grid;grid-template-columns:230px minmax(0,640px) 300px;gap:24px;max-width:1200px;margin:auto;padding:0 16px}
#app.plain{display:block;max-width:420px;padding-top:12vh}
svg.i{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.sb{position:sticky;top:0;height:100vh;padding:18px 0;display:flex;flex-direction:column;gap:4px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;padding:6px 14px 16px}.logo svg{width:28px;height:28px;stroke-width:2.4}
.nv{display:flex;align-items:center;gap:14px;padding:11px 16px;border-radius:999px;cursor:pointer;font-weight:500;color:var(--t)}
.nv:hover{background:var(--c)}.nv.on{background:var(--c);font-weight:700;box-shadow:0 0 0 1px var(--b)}
.btn{background:var(--p);color:var(--pt);border:0;border-radius:999px;padding:10px 20px;font:600 14px inherit;font-family:inherit;cursor:pointer;transition:.15s}
.btn:hover{opacity:.85}.btn.ghost{background:transparent;color:var(--t);box-shadow:inset 0 0 0 1px var(--b)}.btn.sm{padding:6px 14px;font-size:13px}
.sb .btn{margin:14px 6px;padding:14px}.me{margin-top:auto;padding:10px 14px;font-weight:600}.me small,.m{color:var(--m);font-weight:400}.me small{display:block}
main{padding:18px 0 40px;min-width:0}.top{display:flex;gap:10px;margin-bottom:16px}
input,textarea{width:100%;background:var(--c);color:var(--t);border:1px solid var(--b);border-radius:14px;padding:11px 14px;font:inherit;margin-bottom:8px;outline:0}
input:focus,textarea:focus{border-color:var(--a)}textarea{min-height:84px;resize:vertical}.top input{border-radius:999px;margin:0}
.card,.rc{background:var(--c);border:1px solid var(--b);border-radius:18px;padding:16px;margin-bottom:12px}
.rt{padding-top:18px;position:sticky;top:0;align-self:start}.rc h3{margin:0 0 10px;font-size:18px}
.hd{display:flex;gap:10px;align-items:center;margin-bottom:6px}.hd>div{flex:1;min-width:0}
.av{width:38px;height:38px;border-radius:50%;background:var(--p);color:var(--pt);display:grid;place-items:center;font-weight:700;flex:none}
.row{display:flex;gap:8px;align-items:center;justify-content:space-between}.row input{margin:0}
.ic{background:0;border:0;color:var(--m);cursor:pointer;padding:6px;border-radius:50%;display:grid}.ic:hover{background:var(--bg);color:var(--t)}
.act{display:flex;gap:18px;margin-top:8px}.act button{display:flex;gap:6px;align-items:center;background:0;border:0;color:var(--m);cursor:pointer;font:inherit}.act .on{color:#e11d48}.act .on svg{fill:#e11d48}
.tabs{display:flex;gap:24px;margin:6px 4px 14px}.tabs a{cursor:pointer;color:var(--m);padding-bottom:6px;font-weight:600}.tabs .on{color:var(--t);border-bottom:2px solid var(--t)}
h2{margin:4px 4px 14px}.note{background:var(--c);border:1px dashed var(--b);border-radius:12px;padding:10px 14px;color:var(--m);font-size:13px}
.lk{color:var(--a);word-break:break-all;font-size:14px}.cmt{margin:6px 0 0;font-size:14px}.err{color:#e11d48}
.chat{display:grid;grid-template-columns:200px 1fr;gap:12px}.msg{max-width:75%;padding:8px 13px;border-radius:16px;margin:4px 0;background:var(--bg)}.msg.me2{background:var(--p);color:var(--pt);margin-left:auto}
.pl{padding:10px 12px;border-radius:12px;cursor:pointer}.pl.on,.pl:hover{background:var(--bg)}
.toast{position:fixed;bottom:80px;left:50%;transform:translateX(-50%);background:var(--p);color:var(--pt);padding:10px 18px;border-radius:999px;z-index:20}
.tag{display:inline-block;font-size:12px;border:1px solid var(--b);border-radius:999px;padding:2px 10px;color:var(--m);margin:2px 4px 2px 0}
.md{width:100%;max-height:520px;border-radius:14px;margin-top:8px;background:#000;object-fit:contain}.emb{width:100%;aspect-ratio:16/9;border:0;border-radius:14px;margin-top:8px}
.rl{height:calc(100vh - 120px);overflow-y:scroll;scroll-snap-type:y mandatory;border-radius:18px;background:#000}.rl>section{height:100%;scroll-snap-align:start;position:relative;display:grid;place-items:center}.rl video{max-height:100%;max-width:100%}.rl .ov{position:absolute;left:14px;right:14px;bottom:14px;color:#fff;display:flex;justify-content:space-between;align-items:flex-end;text-shadow:0 1px 4px #000}.rl .ov button{background:#0008;color:#fff;border:0;border-radius:999px;padding:8px 14px;cursor:pointer;display:flex;gap:6px;align-items:center}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:#9ca3af;margin-right:8px}.dot.on{background:#22c55e}.ub{background:var(--a);color:#fff;border-radius:999px;font-size:11px;padding:1px 7px;float:right}.seen{font-size:11px;color:var(--m);text-align:right}.typ{font-size:12px;color:var(--m);height:16px}.thr{min-height:200px;max-height:50vh;overflow-y:auto}.msg .x{background:0;border:0;color:inherit;opacity:.5;cursor:pointer;padding:0 0 0 6px;font-size:12px}
@media(max-width:1000px){#app{grid-template-columns:64px 1fr}.rt{display:none}.nv span,.logo b,.me{display:none}.nv{padding:12px}.sb .btn{display:none}}
@media(max-width:640px){#app{grid-template-columns:1fr}.sb{position:fixed;bottom:0;left:0;right:0;height:56px;flex-direction:row;z-index:9;background:var(--c);border-top:1px solid var(--b);padding:0 6px;overflow-x:auto;align-items:center}.logo{display:none}main{padding-bottom:76px}.chat{grid-template-columns:1fr}}

a.btn{text-decoration:none;display:inline-block;text-align:center}
body.lp{background:radial-gradient(900px 420px at 15% -10%,#dbe4ff,transparent 60%),radial-gradient(700px 380px at 92% 0,#eadcff,transparent 60%),var(--bg)}
[data-theme=dark] body.lp{background:var(--bg)}
.lh{display:flex;justify-content:space-between;align-items:center;max-width:1160px;margin:auto;padding:16px}.lh nav{display:flex;gap:8px}.lh .logo{padding:0}
.hero{max-width:820px;margin:7vh auto 20px;text-align:center;padding:0 16px}.eyebrow{color:var(--a);font-weight:600;letter-spacing:.05em}.hero h1{font-size:clamp(34px,6vw,60px);line-height:1.05;margin:10px 0 16px;letter-spacing:-.02em}.hero p.s{color:var(--m);font-size:18px;max-width:600px;margin:0 auto 24px}.cta{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.cta .btn{padding:14px 26px;font-size:15px}
.pv{max-width:1120px;margin:40px auto;padding:0 16px;display:grid;grid-template-columns:1fr 240px;gap:22px;align-items:center}
.win{background:var(--c);border:1px solid var(--b);border-radius:26px;box-shadow:0 30px 80px #1d2a5a1f;display:grid;grid-template-columns:170px 1fr 190px;gap:14px;padding:16px}.win .nv{padding:8px 12px;font-size:14px;gap:10px;cursor:default}.win .card{margin:0 0 10px;padding:12px}
.sk{height:10px;border-radius:6px;background:var(--b);margin:8px 0}.hm{height:150px;border-radius:14px;background:linear-gradient(135deg,#0f1b3d,#2b4fd8 60%,#7aa2ff);margin:8px 0;display:grid;place-items:center;color:#fff;font-weight:700;font-size:22px}
.ph{background:#0f1115;border-radius:34px;padding:9px;box-shadow:0 30px 70px #0004;aspect-ratio:9/16}.ph>div{height:100%;border-radius:26px;background:linear-gradient(160deg,#2b4fd8,#8b5cf6 55%,#f472b6);color:#fff;padding:16px;display:flex;flex-direction:column;justify-content:flex-end;gap:8px}
.fg{max-width:1120px;margin:60px auto;padding:0 16px;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}.fg .card{margin:0}.fg svg{width:26px;height:26px;margin-bottom:8px}.fg p{margin:4px 0 0;color:var(--m)}
.band{max-width:1088px;margin:60px auto;padding:48px 16px;text-align:center;background:var(--p);color:var(--pt);border-radius:28px}.band .btn{background:var(--pt);color:var(--p)}.band p{opacity:.7}
.ftr{text-align:center;color:var(--m);padding:30px 16px 50px;font-size:13px}
@media(max-width:900px){.pv{grid-template-columns:1fr}.ph{display:none}.win{grid-template-columns:1fr}.win .l,.win .r{display:none}}