:root{color-scheme:dark;--background:#0b0d12;--background-soft:#12151c;--foreground:#e8e4dc;--muted:#9a9590;--line:rgba(255,255,255,0.08);--panel:#161a22;--assistant:#1a1f28;--user:#2a2418;--accent:#c4a882;--accent-strong:#dbc9a8;--accent-glow:rgba(196,168,130,0.35);--danger:#d4847a;--shadow:0 24px 60px rgba(0,0,0,0.45)}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--background);color:var(--foreground);font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}button,input,select,textarea{font:inherit}button{border:0;border-radius:999px;background:linear-gradient(135deg,#b8956a,#c4a882);color:#1a1510;cursor:pointer;font-weight:600;padding:11px 18px;transition:transform .2s ease,box-shadow .2s ease}button:hover:not(:disabled){box-shadow:0 0 24px var(--accent-glow);transform:translateY(-1px)}button:disabled{cursor:not-allowed;opacity:.45}button.icon-button,button.secondary{background:transparent;border:1px solid var(--line);box-shadow:none;color:var(--foreground);font-weight:500;transform:none}button.icon-button:hover:not(:disabled),button.secondary:hover:not(:disabled){background:rgba(255,255,255,.04);box-shadow:none;transform:none}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.03);color:var(--foreground);padding:10px 12px}input:focus,select:focus,textarea:focus{border-color:rgba(196,168,130,.45);outline:none}textarea{min-height:120px;resize:vertical}.app-shell{min-height:100svh}.immersive-home{background:var(--background);overflow:hidden;position:relative}.mobius-canvas,.profile-particle-canvas{inset:0;pointer-events:none;position:fixed;z-index:0}.home-overlay{display:flex;flex-direction:column;justify-content:space-between;margin:0 auto;max-width:720px;min-height:100svh;padding:calc(env(safe-area-inset-top) + 48px) 24px calc(env(safe-area-inset-bottom) + 32px);position:relative;z-index:1}.home-hero{text-align:center}.home-hero .brand{color:var(--accent);font-size:13px;letter-spacing:.28em;margin:0 0 20px;text-transform:uppercase}.home-hero h1{font-size:clamp(26px,5vw,36px);font-weight:500;letter-spacing:.02em;line-height:1.45;margin:0 0 16px}.home-hero .lead{color:var(--muted);font-size:15px;line-height:1.75;margin:0 auto;max-width:520px}.home-hint{color:rgba(196,168,130,.75);font-size:12px;margin:20px 0 0}.home-actions{align-items:center;display:flex;flex-direction:column;gap:14px;margin:48px 0;text-align:center}.primary-glow{font-size:16px;letter-spacing:.12em;padding:14px 32px}.home-subcopy{color:var(--muted);font-size:13px;line-height:1.6;margin:0;max-width:360px}.home-archives{margin-bottom:24px}.archives-toggle{background:transparent;border:0;box-shadow:none;color:var(--muted);font-size:13px;font-weight:400;padding:0;transform:none}.archives-toggle:hover:not(:disabled){background:transparent;box-shadow:none;color:var(--accent);transform:none}.archives-list{display:grid;grid-gap:10px;gap:10px;list-style:none;margin:14px 0 0;padding:0}.archives-list li{align-items:center;display:flex;gap:10px}.home-footer{margin-top:auto}.chat-screen{background:var(--background-soft);display:grid;grid-template-rows:auto 1fr auto auto;height:100svh;margin:0 auto;max-width:760px}.chat-header{align-items:center;background:rgba(11,13,18,.88);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;padding:calc(env(safe-area-inset-top) + 14px) 16px 12px;position:-webkit-sticky;position:sticky;top:0;z-index:2}.chat-header h1{font-size:18px;font-weight:500;margin:0}.chat-header p{color:var(--muted);font-size:12px;margin:4px 0 0}.message-list{display:flex;flex-direction:column;gap:10px;overflow-y:auto;padding:18px 14px 12px}.empty-chat{align-self:center;color:var(--muted);margin:auto 0;max-width:300px;text-align:center}.empty-chat p{color:var(--foreground);font-size:18px;line-height:1.55;margin:0 0 8px}.empty-chat span{font-size:13px}.bubble{border-radius:18px;line-height:1.55;max-width:min(82%,560px);padding:10px 13px;white-space:pre-wrap}.bubble.user{align-self:flex-end;background:var(--user);border:1px solid rgba(196,168,130,.15);border-bottom-right-radius:6px;color:#f0e8dc}.bubble.assistant{align-self:flex-start;background:var(--assistant);border:1px solid var(--line);border-bottom-left-radius:6px}.bubble.typing{color:var(--muted)}.composer{align-items:end;background:rgba(11,13,18,.92);border-top:1px solid var(--line);display:grid;grid-gap:8px;gap:8px;grid-template-columns:1fr auto;padding:10px 12px calc(env(safe-area-inset-bottom) + 10px)}.composer textarea{border-radius:18px;max-height:132px;min-height:42px;resize:none}.status,.toast{color:var(--muted);font-size:12px;margin:0;min-height:16px;padding:0 14px 8px}.error{color:var(--danger)}.form-screen{margin:0 auto;max-width:760px;min-height:100svh;overflow-y:auto;padding:calc(env(safe-area-inset-top) + 24px) 20px calc(env(safe-area-inset-bottom) + 24px)}.form-header{display:grid;grid-gap:14px;gap:14px;margin-bottom:20px}.form-header h1{font-size:26px;font-weight:500;margin:0 0 10px}.form-header p{color:var(--muted);line-height:1.65;margin:0}.create-form{display:grid;grid-gap:20px;gap:20px}.form-section{background:rgba(255,255,255,.02);border:1px solid var(--line);border-radius:16px;display:grid;grid-gap:14px;gap:14px;padding:18px}.form-section h2{font-size:17px;font-weight:500;margin:0}.field-hint,.section-intro{color:var(--muted);font-size:13px;line-height:1.6;margin:0}.field{display:grid;grid-gap:8px;gap:8px}.field label{color:var(--accent-strong);font-size:13px}fieldset.field{border:1px solid var(--line);border-radius:12px;margin:0;padding:12px}fieldset.field legend{color:var(--muted);font-size:13px;padding:0 4px}.radio-row{align-items:flex-start;display:flex;gap:8px;line-height:1.5;margin-top:8px}.radio-row input{accent-color:var(--accent);margin-top:4px;width:auto}.guide-box{background:rgba(196,168,130,.06);border:1px solid rgba(196,168,130,.15);border-radius:12px;padding:14px}.guide-box h3{color:var(--accent);font-size:14px;margin:0 0 10px}.guide-pre{color:var(--muted);font-family:inherit;font-size:12px;line-height:1.65;margin:0;white-space:pre-wrap}.persona-card{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:14px;display:grid;flex:1 1;grid-gap:4px;gap:4px;padding:12px 14px;text-align:left}.persona-card strong{font-size:15px;font-weight:500}.persona-card span{color:var(--muted);font-size:12px}.auxiliary{color:var(--muted);font-size:13px;line-height:1.6;margin:0 0 12px}.notice-box{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:12px;padding:12px 14px}.notice-box p{line-height:1.55;margin:0}.notice-box p+p{margin-top:8px}.small{color:var(--muted);font-size:12px}.link-button{border:0;color:var(--accent);cursor:pointer;font-size:12px;font-weight:400;margin-bottom:4px;padding:0}.link-button,.link-button:hover:not(:disabled){background:none;box-shadow:none;transform:none}.menu-panel{background:var(--panel);border-bottom:1px solid var(--line);display:grid;grid-gap:8px;gap:8px;padding:10px 16px 14px}.danger-text{color:var(--danger)!important}@media (min-width:820px){.app-shell:not(.immersive-home){padding:24px}.chat-screen,.form-screen{border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}.chat-screen{height:calc(100svh - 48px)}.form-screen{max-height:calc(100svh - 48px)}}