:root{--bg: #f7f7fb;--panel: #ffffff;--muted: #6b7280;--border: #e6e7eb;--accent: #2563eb;--user-bg: #e8f0ff;--assistant-bg: #f3f4f6;--heading-font: "MyFont", Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;background:var(--bg);color:#0f172a}.app-root{max-width:920px;margin:28px auto;padding:20px}.app-header{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.app-header h1{margin:0;font-size:55px;color:green}@font-face{font-family:MyFont;src:url(/assets/fonts/MyFont-Regular.woff2) format("woff2"),url(/assets/fonts/MyFont-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:MyFont;src:url(/assets/fonts/MyFont-Bold.woff2) format("woff2"),url(/assets/fonts/MyFont-Bold.woff) format("woff");font-weight:700;font-style:normal;font-display:swap}.app-header h1{font-family:var(--heading-font)}.subtitle{margin:0;color:var(--muted);font-size:13px}.app-main{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:12px;box-shadow:0 1px 2px #0f172a0a}.app-footer{text-align:center;margin-top:12px;color:var(--muted)}.chat-root{display:flex;flex-direction:column;height:60vh;min-height:360px}.message-list{overflow:auto;padding:12px;display:flex;flex-direction:column;gap:10px}.empty{color:var(--muted);text-align:center;padding:30px}.message{display:flex;align-items:flex-end}.message.user{justify-content:flex-end}.message.assistant{justify-content:flex-start}.bubble{max-width:78%;padding:12px;border-radius:12px;border:1px solid transparent;position:relative}.message.user .bubble{background:var(--user-bg);border-color:#2563eb1f}.message.assistant .bubble{background:var(--assistant-bg)}.message.assistant .bubble:after{content:"";position:absolute;left:-9px;bottom:12px;width:0;height:0;border-top:8px solid transparent;border-bottom:8px solid transparent;border-right:8px solid var(--assistant-bg)}.assistant-art{display:flex;align-items:flex-end;margin-right:10px;margin-left:0}.assistant-art img{width:48px;height:48px;object-fit:cover;border-radius:8px}.role{font-size:11px;color:var(--muted);margin-bottom:6px}.text{white-space:pre-wrap;color:#0f172a}.composer{display:flex;gap:8px;padding:12px;border-top:1px solid var(--border);background:linear-gradient(180deg,transparent,rgba(0,0,0,.02))}.composer input{flex:1;padding:10px;border-radius:8px;border:1px solid var(--border);outline:none}.composer input:focus{box-shadow:0 0 0 3px #2563eb14;border-color:var(--accent)}.composer button{background:var(--accent);color:#fff;padding:8px 12px;border-radius:8px;border:none;cursor:pointer}.composer button:disabled{opacity:.5;cursor:not-allowed}.toggle-row{display:flex;align-items:center;gap:8px;margin-left:8px;color:var(--muted);font-size:13px}.toggle-row input{width:16px;height:16px}@media (max-width:600px){.app-root{margin:12px}.bubble{max-width:92%}}