:root{
  --bg:#f6f7fb; --bg2:#fff; --ink:#1b2333; --muted:#67718a; --rule:#e7e9f1;
  --accent:#6366f1; --accent2:#10b981; --accent3:#f59e0b; --danger:#f43f5e;
  --font:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
  --head:'PingFang SC',system-ui,sans-serif;
  --mono:ui-monospace,'JetBrains Mono','Consolas',monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px}
body{font-family:var(--font);color:var(--ink);line-height:1.6;background:var(--bg);
  background-image:radial-gradient(700px 380px at 100% 0,rgba(16,185,129,.08),transparent 60%),radial-gradient(700px 380px at 0 0,rgba(99,102,241,.08),transparent 60%);min-height:100vh;padding:1rem}
.top{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;flex-wrap:wrap;max-width:1180px;margin:0 auto 1rem}
.top h1{font-family:var(--head);font-size:1.3rem;font-weight:800}
.top .sub{color:var(--muted);font-size:.84rem;margin-top:.15rem}
.badge{font-size:.78rem;background:var(--bg2);border:1px solid var(--rule);border-radius:999px;padding:.3rem .7rem;color:var(--muted);max-width:50ch}
.grid{display:grid;grid-template-columns:1fr 360px;gap:1rem;max-width:1180px;margin:0 auto}
@media(max-width:880px){.grid{grid-template-columns:1fr}}
.stage{position:relative;background:#000;border-radius:14px;overflow:hidden;aspect-ratio:4/3;border:1px solid var(--rule)}
.stage video,.stage canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.stage video{transform:scaleX(-1)}
.legend{position:absolute;left:8px;bottom:8px;display:flex;gap:.8rem;align-items:center;font-size:.72rem;color:#fff;background:rgba(0,0,0,.4);padding:.2rem .5rem;border-radius:6px}
.legend .d{display:inline-block;width:8px;height:8px;border-radius:50%}
.legend .indigo{background:var(--accent)} .legend .emerald{background:var(--accent2)}
.panel{display:flex;flex-direction:column;gap:.8rem}
.card{background:var(--bg2);border:1px solid var(--rule);border-radius:12px;padding:.9rem}
.card h2{font-family:var(--head);font-size:.82rem;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-bottom:.6rem;display:flex;justify-content:space-between;align-items:center}
.card h2 .engine{font-size:.68rem;padding:.15rem .5rem;border-radius:999px;background:rgba(16,185,129,.15);color:#059669;font-weight:600;text-transform:none;letter-spacing:normal}
.card h2 .engine.audio{background:rgba(245,158,11,.15);color:#d97706}
.card h2 .engine.none{background:rgba(244,63,94,.15);color:#dc2626}
.card h3{font-family:var(--head);font-size:.78rem;color:var(--ink);margin:.7rem 0 .3rem}
.metrics{display:grid;grid-template-columns:1fr 1fr;gap:.4rem .8rem;font-size:.82rem}
.metrics div{display:flex;align-items:center;gap:.4rem}
.metrics span{color:var(--muted);min-width:3.2rem}
.metrics b{font-family:var(--mono);font-weight:600;min-width:2.6ch}
.bar{flex:1;height:5px;background:rgba(99,102,241,.12);border-radius:3px;position:relative;overflow:hidden}
.bar .fill{position:absolute;left:50%;top:0;width:4px;height:100%;background:var(--accent);transform:translateX(0);transition:transform .08s}
.hint{font-size:.76rem;color:var(--muted);margin-top:.4rem}
.note{font-size:.74rem;color:var(--muted);margin-top:.4rem;font-style:italic}
.g{font-family:var(--head);font-weight:800;font-size:.9rem;text-align:center;padding:.35rem;border-radius:8px;margin-top:.4rem;background:rgba(0,0,0,.04)}
.g-nod{background:rgba(16,185,129,.16);color:#047857}
.g-shake{background:rgba(244,63,94,.14);color:#be123c}
.row{display:flex;gap:.5rem;margin-bottom:.6rem}
.btn{flex:1;font-family:var(--head);font-weight:700;font-size:.84rem;border:1px solid var(--rule);background:var(--bg2);color:var(--ink);padding:.5rem .7rem;border-radius:8px;cursor:pointer}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.pri{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.chk{display:flex;align-items:center;gap:.3rem;font-size:.8rem;color:var(--ink);margin:.25rem 0}
.signs{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:.2rem}
.sld{display:flex;align-items:center;gap:.5rem;font-size:.78rem;color:var(--muted);margin:.4rem 0}
.sld input{flex:1}
.sld span{font-family:var(--mono);min-width:2.6ch;text-align:right}
.cstage{position:relative;height:170px;border-radius:12px;background:radial-gradient(circle at 50% 50%,#fff,rgba(99,102,241,.06));border:1px solid var(--rule);transition:transform .5s;overflow:hidden}
.cstage .ccenter{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);text-align:center}
.cstage .cw{font-family:var(--head);font-weight:800;font-size:2rem;color:var(--accent);line-height:1}
.cstage .cp{font-family:var(--mono);font-size:.74rem;color:var(--muted);margin-top:.25rem}
.cdetail{position:absolute;left:50%;bottom:8px;transform:translateX(-50%);width:86%;background:#11162b;color:#fff;border-radius:8px;padding:.5rem .7rem;font-size:.78rem;display:none}
.cdetail.show{display:block}
.cdetail b{color:var(--accent2)}
.ft{max-width:1180px;margin:1rem auto 0;font-size:.74rem;color:var(--muted)}
.ft code{font-family:var(--mono);background:rgba(99,102,241,.1);padding:.05em .3em;border-radius:4px}

/* Voice list (debug) */
.voicelist summary{cursor:pointer;font-size:.78rem;color:var(--muted);padding:.3rem 0}
.voicelist-body{margin-top:.4rem;max-height:160px;overflow-y:auto;border:1px solid var(--rule);border-radius:8px;padding:.3rem}
.voice-item{display:flex;align-items:center;gap:.4rem;padding:.25rem .3rem;font-size:.76rem;border-radius:6px}
.voice-item:hover{background:var(--bg)}
.voice-item b{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.vlang{color:var(--muted);font-family:var(--mono);font-size:.7rem}
.vdef,.vlocal,.vnet{font-size:.65rem;padding:.1rem .35rem;border-radius:999px}
.vdef{background:rgba(16,185,129,.15);color:#059669}
.vlocal{background:rgba(99,102,241,.15);color:#4f46e5}
.vnet{background:rgba(245,158,11,.15);color:#d97706}
.diag-out{font-size:.74rem;color:var(--ink);background:var(--bg);border:1px solid var(--rule);border-radius:8px;padding:.5rem;margin-top:.5rem;line-height:1.6;display:none}
.diag-out:not(:empty){display:block}
.btn.small{padding:.3rem .7rem;font-size:.78rem}
.cache-info{font-size:.74rem;color:var(--muted);line-height:1}