:root{--bg: #f6f8fb;--card: #ffffff;--text: #172033;--muted: #667085;--line: #e5e7eb;--primary: #2563eb;--primary-soft: #eff6ff;--green: #059669;--green-soft: #ecfdf5;--red: #dc2626;--red-soft: #fef2f2}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,Arial,sans-serif;line-height:1.7}.app{max-width:860px;margin:0 auto;padding:24px 20px 80px;display:flex;flex-direction:column;gap:14px;min-height:100vh}.header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}.header h1{margin:0 0 4px;font-size:26px;letter-spacing:-.5px}.sub{margin:0;color:var(--muted);font-size:13px}.header-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.pill{padding:4px 12px;border-radius:999px;font-size:13px;background:#eef1f5;color:var(--muted)}.pill-connected{background:var(--green-soft);color:var(--green)}.pill-connecting{background:var(--primary-soft);color:var(--primary)}.pill-error{background:var(--red-soft);color:var(--red)}.thinking-switch{display:inline-flex;align-items:center;gap:8px;cursor:pointer;-webkit-user-select:none;user-select:none;font-size:13px;color:var(--muted)}.thinking-switch input{position:absolute;width:1px;height:1px;opacity:0}.thinking-track{position:relative;width:46px;height:24px;border-radius:999px;background:#d3dae6;display:flex;align-items:center;transition:background .3s ease,box-shadow .3s ease}.thinking-track:after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:0 1px 4px #0f172a59;transition:transform .3s cubic-bezier(.34,1.56,.64,1)}.thinking-glyph{position:absolute;left:6px;width:13px;height:13px;color:#fff;opacity:0;transform:scale(.4) rotate(-40deg);transition:opacity .25s ease,transform .35s cubic-bezier(.34,1.56,.64,1)}.thinking-switch.is-on .thinking-track{background:linear-gradient(135deg,#4f46e5,#a855f7);box-shadow:0 0 14px #815bf6a6;animation:thinking-glow 2.4s ease-in-out infinite}.thinking-switch.is-on .thinking-track:after{transform:translate(22px)}.thinking-switch.is-on .thinking-glyph{opacity:1;transform:scale(1) rotate(0)}.thinking-switch.is-on .thinking-label{color:var(--primary);font-weight:600}.thinking-label{transition:color .25s ease;letter-spacing:.5px}.thinking-switch.is-disabled{opacity:.5;cursor:not-allowed}@keyframes thinking-glow{0%,to{box-shadow:0 0 10px #815bf673}50%{box-shadow:0 0 18px #815bf6d9}}@media (prefers-reduced-motion: reduce){.thinking-switch.is-on .thinking-track{animation:none}}.btn{border:1px solid var(--line);background:var(--card);color:var(--text);padding:8px 18px;border-radius:10px;font-size:14px;cursor:pointer;transition:opacity .15s ease}.btn:hover:not(:disabled){opacity:.85}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.session-line{margin:0;color:var(--muted);font-size:12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.banner{padding:10px 14px;border-radius:10px;font-size:14px;display:flex;justify-content:space-between;align-items:center;gap:12px}.banner-error{background:var(--red-soft);border:1px solid #fecaca;color:var(--red)}.banner-close{border:none;background:transparent;color:inherit;font-size:18px;cursor:pointer;line-height:1}.mic-meter{height:6px;border-radius:999px;background:#e9edf3;overflow:hidden}.mic-meter-fill{height:100%;background:linear-gradient(90deg,#34d399,#2563eb);width:0;transition:width .08s linear}.turns{flex:1;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;overflow-y:auto;max-height:60vh;display:flex;flex-direction:column;gap:14px}.empty{margin:auto;text-align:center;color:var(--muted)}.empty .muted{font-size:13px}.turn{max-width:82%;padding:10px 14px;border-radius:12px;font-size:15px}.turn-user{align-self:flex-end;background:var(--primary-soft);border:1px solid #dbeafe}.turn-assistant{align-self:flex-start;background:#f8fafc;border:1px solid var(--line)}.turn-speaker{display:block;font-size:12px;color:var(--muted);margin-bottom:2px}.turn-text{margin:0;white-space:pre-wrap;word-break:break-word}.cursor{animation:blink 1s steps(1) infinite;color:var(--primary)}@keyframes blink{50%{opacity:0}}.notice{margin:0;color:var(--primary);font-size:13px}.composer{display:flex;gap:10px;align-items:center}.composer-input{flex:1;border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:10px;padding:10px 14px;font-size:15px;font-family:inherit}.composer-input:focus{outline:none;border-color:var(--primary)}.composer-input:disabled{background:#f4f6f9;cursor:not-allowed}.footer{color:var(--muted);font-size:12px;text-align:center}@media (max-width: 640px){.turn{max-width:94%}}