:root{--primary: #10b981;--primary-strong: #059669;--primary-soft: #e6f7f0;--ink: #1e2a37;--ink-soft: #55636f;--muted: #8b96a5;--surface: #ffffff;--surface-soft: #f4f7fb;--border: #e7ebf2;--danger: #e5544b;--danger-soft: #fdeceb;--amber: #f0a020;--sky: #3b82f6;--shadow-lg: 0 24px 60px rgba(28, 45, 74, .12);--shadow-sm: 0 2px 10px rgba(28, 45, 74, .06);--radius: 22px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;color:var(--ink);-webkit-font-smoothing:antialiased}.page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:28px;background:radial-gradient(900px 500px at 12% 0%,#e8f0ff 0%,transparent 55%),radial-gradient(800px 500px at 100% 100%,#fdf1e6 0%,transparent 50%),linear-gradient(135deg,#eef3fb,#f6f2ec)}.app{width:100%;max-width:1000px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);overflow:hidden;display:flex;flex-direction:column}.app-header{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:16px 22px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,#fff,#fbfcfe)}.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand-avatar{position:relative;width:42px;height:42px;flex:none;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:18px;color:#fff;background:linear-gradient(140deg,var(--primary),var(--primary-strong));box-shadow:0 4px 12px #10b98159}.brand-avatar[data-live=true]:after{content:"";position:absolute;right:-1px;bottom:-1px;width:12px;height:12px;border-radius:50%;background:var(--primary);border:2px solid #fff;box-shadow:0 0 #10b98180;animation:livePulse 1.8s infinite}.brand-meta{display:flex;flex-direction:column;min-width:0}.brand-meta strong{font-size:16px;line-height:1.2}.brand-sub{color:var(--muted);font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.char-picker{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}.char-pill{display:inline-flex;align-items:center;gap:7px;padding:7px 14px 7px 11px;border:1px solid var(--border);border-radius:999px;background:var(--surface);color:var(--ink-soft);font-family:inherit;font-size:13.5px;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s,color .15s,box-shadow .15s,transform .08s}.char-pill:hover:not(:disabled){border-color:var(--primary);color:var(--ink)}.char-pill:active:not(:disabled){transform:scale(.96)}.char-pill.active{background:linear-gradient(140deg,var(--primary),var(--primary-strong));border-color:transparent;color:#fff;box-shadow:0 4px 12px #10b9814d}.char-pill:disabled{opacity:.5;cursor:not-allowed}.app-body{display:grid;grid-template-columns:360px 1fr;gap:22px;padding:22px;align-items:stretch}.avatar-col{display:flex;flex-direction:column;align-items:center;gap:16px}.avatar-frame{position:relative;width:100%;aspect-ratio:3 / 4;border-radius:18px;overflow:hidden;background:linear-gradient(160deg,#eaf0fb,#f4eee6);border:3px solid #fff;box-shadow:var(--shadow-sm),0 0 0 1px var(--border);transition:box-shadow .25s,transform .25s}.avatar-frame[data-speaking=true]{box-shadow:0 0 0 3px #10b98159,0 12px 32px #10b98140}.avatar-video{width:100%;height:100%;object-fit:cover;display:block}.avatar-placeholder{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px;text-align:center;color:var(--ink-soft);font-size:14px}.avatar-placeholder p{margin:0;max-width:220px;line-height:1.5}.ph-avatar{width:72px;height:72px;border-radius:50%;display:grid;place-items:center;font-size:30px;font-weight:700;color:#fff;background:linear-gradient(140deg,var(--primary),var(--primary-strong));box-shadow:0 8px 20px #10b98159}.status-pill{position:absolute;bottom:12px;left:50%;transform:translate(-50%);display:inline-flex;align-items:center;gap:8px;background:#ffffffeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:var(--ink);padding:7px 14px;border-radius:999px;font-size:12.5px;font-weight:600;white-space:nowrap;box-shadow:0 4px 14px #1c2d4a29}.pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--muted)}.status-pill[data-state=listening] .pulse-dot{background:var(--primary);animation:dot 1.2s infinite}.status-pill[data-state=thinking] .pulse-dot{background:var(--amber);animation:dot 1.2s infinite}.status-pill[data-state=speaking] .pulse-dot{background:var(--sky);animation:dot 1.2s infinite}.controls{display:flex;gap:10px;align-items:center;justify-content:center;width:100%}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:none;border-radius:14px;padding:13px 20px;font-size:15px;font-weight:600;cursor:pointer;font-family:inherit;transition:transform .08s,box-shadow .2s,background .2s,opacity .2s}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{color:#fff;background:linear-gradient(140deg,var(--primary),var(--primary-strong));box-shadow:0 8px 20px #10b98159}.btn-lg{padding:15px 30px;font-size:16px}.btn-mic{flex:1;color:#fff;background:linear-gradient(140deg,var(--primary),var(--primary-strong));box-shadow:0 8px 20px #10b98152}.btn-mic.active{animation:micPulse 1.5s infinite}.btn-hangup{width:50px;height:50px;padding:0;flex:none;border-radius:14px;color:var(--danger);background:var(--danger-soft)}.btn-hangup:hover{background:#fbdedb}.chat-col{display:flex;flex-direction:column;min-height:0;background:var(--surface-soft);border:1px solid var(--border);border-radius:18px;overflow:hidden}.chat-scroll{flex:1;min-height:0;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px;scroll-behavior:smooth}.bubble{max-width:86%;padding:10px 14px;font-size:14.5px;line-height:1.5;word-break:break-word;animation:rise .18s ease-out}.bubble p{margin:0}.bubble.user{align-self:flex-end;background:linear-gradient(140deg,var(--primary),var(--primary-strong));color:#fff;border-radius:16px 16px 5px;box-shadow:0 4px 12px #10b98138}.bubble.assistant{align-self:flex-start;background:var(--surface);color:var(--ink);border:1px solid var(--border);border-radius:16px 16px 16px 5px;box-shadow:var(--shadow-sm)}.bubble.user.interim{opacity:.6}.bubble-name{display:block;font-size:11.5px;font-weight:700;color:var(--primary-strong);margin-bottom:3px}.caret{display:inline-block;width:2px;height:1em;background:var(--primary-strong);margin-left:2px;vertical-align:text-bottom;animation:blink 1s step-end infinite}.typing{display:inline-flex;gap:4px;padding:3px 0}.typing i{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:bounce 1.2s infinite}.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}.chat-empty{margin:auto 0;display:flex;flex-direction:column;gap:16px}.welcome{display:flex;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:14px 16px;box-shadow:var(--shadow-sm)}.welcome svg{color:var(--primary);flex:none;margin-top:2px}.welcome p{margin:0;font-size:14.5px;line-height:1.55;color:var(--ink-soft)}.hints{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.hints-label{font-size:12px;color:var(--muted);font-weight:600}.hint-chip{font-size:13px;color:var(--ink-soft);background:var(--surface);border:1px solid var(--border);padding:7px 12px;border-radius:999px}.chat-note{display:flex;align-items:center;gap:10px;padding:10px 14px;margin:0 12px 12px;background:var(--danger-soft);color:var(--danger);border-radius:12px;font-size:13px}.chat-note span{flex:1}.chat-note button{border:none;background:transparent;color:var(--danger);cursor:pointer;font-size:13px;padding:2px 4px;border-radius:6px}.banner{width:100%;padding:11px 14px;border-radius:12px;font-size:13.5px;line-height:1.5}.banner-error{background:var(--danger-soft);color:var(--danger)}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes dot{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.5);opacity:.5}}@keyframes livePulse{0%{box-shadow:0 0 #10b98180}70%{box-shadow:0 0 0 6px #10b98100}to{box-shadow:0 0 #10b98100}}@keyframes micPulse{0%,to{box-shadow:0 8px 20px #10b98152,0 0 #10b98173}50%{box-shadow:0 8px 20px #10b98152,0 0 0 12px #10b98100}}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}@keyframes bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-5px)}}@keyframes rise{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 880px){.page{padding:0}.app{max-width:100%;min-height:100vh;border:none;border-radius:0;box-shadow:none}.app-body{grid-template-columns:1fr;gap:16px;padding:16px}.avatar-frame{max-width:300px;margin:0 auto}.avatar-col{width:100%}.chat-col{min-height:46vh}.brand-sub{max-width:40vw}}@media (prefers-reduced-motion: reduce){*,*:after{animation:none!important;scroll-behavior:auto!important}}