:root{--bg: #101014;--surface: #1c1c22;--surface-2: #26262f;--surface-own: #1e2a3d;--text: #f2f2f5;--muted: #9a9aa8;--accent: #4f8cff;--live: #24c07a;--warn: #ffb020;--danger: #ff5c5c;--radius: 14px}*{box-sizing:border-box}[hidden]{display:none!important}html,body{margin:0;height:100%}body{background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,Segoe UI,PingFang SC,Noto Sans SC,sans-serif;-webkit-font-smoothing:antialiased;overscroll-behavior:none}.screen{display:flex;flex-direction:column;height:100dvh;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}.screen[hidden]{display:none}.join-card{margin:auto;width:min(420px,100%);padding:24px;display:flex;flex-direction:column;gap:18px}h1{margin:0;font-size:32px;letter-spacing:-.02em}.subtitle{margin:-12px 0 0;color:var(--muted)}.field{display:flex;flex-direction:column;gap:6px}.field span{font-size:14px;color:var(--muted)}input[type=text]{padding:14px 16px;font-size:17px;color:var(--text);background:var(--surface);border:1px solid #33333f;border-radius:var(--radius)}input[type=text]:focus{outline:2px solid var(--accent);border-color:transparent}.roles{border:0;margin:0;padding:0;display:flex;gap:10px}.roles legend{font-size:14px;color:var(--muted);padding:0 0 6px}.role{flex:1}.role input{position:absolute;opacity:0;pointer-events:none}.role-body{display:flex;flex-direction:column;gap:2px;padding:16px;background:var(--surface);border:2px solid transparent;border-radius:var(--radius);text-align:center}.role-body strong{font-size:18px}.role-body small{color:var(--muted);font-size:12px}.role input:checked+.role-body{border-color:var(--accent);background:var(--surface-2)}.role input:focus-visible+.role-body{outline:2px solid var(--accent);outline-offset:2px}button{font:inherit;color:inherit;border:0;border-radius:var(--radius);cursor:pointer;-webkit-tap-highlight-color:transparent}button.primary{padding:18px;font-size:18px;font-weight:600;background:var(--accent);color:#fff}button.primary:disabled{opacity:.5}button.secondary{padding:12px 20px;font-size:15px;background:var(--surface-2);color:var(--text)}.hint{margin:0;font-size:13px;color:var(--muted)}.hint a{color:var(--accent)}.error{margin:0;color:var(--danger);font-size:14px}.room-header{display:flex;align-items:center;gap:7px;padding:12px 16px;font-size:13px;color:var(--muted);border-bottom:1px solid #24242c}.spacer{flex:1}#connection-label,.you{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.you{color:var(--text);font-weight:600}.dot{width:9px;height:9px;border-radius:50%;background:var(--muted);flex:none}.dot[data-status=open]{background:var(--live)}.dot[data-status=connecting],.dot[data-status=reconnecting]{background:var(--warn)}.dot[data-status=closed]{background:var(--danger)}.resume-banner{width:calc(100% - 32px);margin:8px 16px 0;padding:14px;background:var(--warn);color:#1a1206;font-size:15px;font-weight:600;text-align:center}.participants{display:flex;gap:8px;overflow-x:auto;padding:12px 16px;scrollbar-width:none}.participants::-webkit-scrollbar{display:none}.chip{flex:none;display:flex;align-items:center;gap:6px;padding:8px 12px;background:var(--surface);border-radius:999px;font-size:14px;white-space:nowrap}.chip[data-you=true]{outline:1px solid #3a3a48}.chip .role-tag{font-size:11px;color:var(--muted)}.transcript{flex:1;overflow-y:auto;padding:4px 16px 16px;display:flex;flex-direction:column;gap:12px;-webkit-overflow-scrolling:touch}.turn{background:var(--surface);border-radius:var(--radius);padding:10px 13px;display:flex;flex-direction:column;gap:4px;max-width:85%;align-self:flex-start}.turn[data-own=true]{align-self:flex-end;background:var(--surface-own)}.turn[data-direction="zh->en"]{border-left:3px solid var(--accent)}.turn[data-direction="en->zh"]{border-left:3px solid var(--live)}.turn .label{font-size:11px;letter-spacing:.04em;color:var(--muted);display:flex;gap:8px;align-items:baseline}.turn .who{font-weight:600;text-transform:none;letter-spacing:0;color:var(--text, inherit);font-size:12px}.turn .source{color:var(--muted);font-size:15px}.turn .translated{font-size:19px;line-height:1.4}.turn.pending{opacity:.75}.empty{margin:auto;color:var(--muted);text-align:center;font-size:14px}.pause{width:100%;margin-top:10px;padding:14px;background:var(--surface);color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:2px;font-size:16px;font-weight:600}.pause small{font-size:12px;font-weight:400;opacity:.8}.pause[data-paused=true]{background:var(--warn);color:#1a1206}.chip[data-paused=true]{opacity:.5}.invite{width:34px;height:34px;padding:2px;border:0;border-radius:6px;background:#fff;cursor:pointer;flex:none}.invite-qr{display:block;width:100%;height:100%}.sheet{position:fixed;inset:0;z-index:20;background:#000000b8;display:flex;align-items:center;justify-content:center;padding:24px}.sheet[hidden]{display:none}.sheet-card{background:var(--surface);border-radius:var(--radius);padding:20px;width:min(360px,100%);display:flex;flex-direction:column;align-items:center;gap:14px}.sheet-title{margin:0;font-size:15px;color:var(--muted)}.invite-qr-large{width:min(260px,70vw);height:min(260px,70vw);background:#fff;border-radius:8px;padding:8px}.invite-url{margin:0;font-size:13px;color:var(--muted);word-break:break-all;text-align:center}.controls{padding:12px 16px calc(16px + env(safe-area-inset-bottom));border-top:1px solid #24242c}.status-line{margin:0;text-align:center;font-size:15px;color:var(--muted);min-height:44px;display:flex;align-items:center;justify-content:center}.status-line[data-live=true]{color:var(--live);font-weight:600}.icon-button{position:relative;width:34px;height:34px;flex:none;border-radius:8px;background:var(--surface-2);color:var(--muted);font-size:17px;line-height:1}.badge{position:absolute;top:-5px;right:-5px;min-width:17px;height:17px;padding:0 4px;border-radius:999px;background:var(--accent);color:#fff;font-size:11px;font-weight:700;line-height:17px;text-align:center}.voices-banner{width:calc(100% - 32px);margin:8px 16px 0;padding:12px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;text-align:center}.voices-card{width:min(440px,100%);max-height:84dvh;align-items:stretch}.voices-list{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:8px}.switch{display:flex;align-items:flex-start;gap:10px;font-size:14px}.switch input{width:20px;height:20px;margin:1px 0 0;accent-color:var(--accent);flex:none}.switch small{display:block;color:var(--muted);font-size:12px}.voice{display:grid;grid-template-columns:auto 1fr;gap:6px 10px;padding:10px;background:var(--surface-2);border-radius:var(--radius);border-left:3px solid transparent}.voice[data-speaking=true]{border-left-color:var(--live)}.voice[data-confirmed=true]{background:var(--surface)}.voice[data-muted=true]{opacity:.55}.voice-play{width:40px;height:40px;border-radius:50%;background:var(--bg);color:var(--text);font-size:14px}.voice-play:disabled{opacity:.35}.voice-body{min-width:0}.voice-name{width:100%;padding:6px 8px;font-size:16px;font-weight:600;color:var(--text);appearance:none;background:var(--bg);border:1px solid transparent;border-radius:8px}.voice-name:focus{outline:none;background:var(--bg);border-color:var(--accent)}.voice-meta{margin:2px 0 0 8px;font-size:12px;color:var(--muted)}.voice-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:6px;align-items:center}.voice-actions button,.voice-actions select{padding:8px 12px;font:inherit;font-size:13px;color:var(--text);background:var(--bg);border:0;border-radius:999px}.voice-confirm[data-on=true]{background:#24c07a2e;color:var(--live);font-weight:600}.voice-mute[data-on=true]{background:#ffb0202e;color:var(--warn);font-weight:600}.voice-merge{max-width:150px}.voice-forget{margin-left:auto;color:var(--muted)}.sheet-value{margin:0;font-variant-numeric:tabular-nums;font-size:14px;color:var(--muted)}.meter{position:relative;width:100%;height:16px;border-radius:8px;background:var(--bg);overflow:hidden}.meter-fill{height:100%;width:0;background:var(--muted)}.meter-fill[data-open=true]{background:var(--live)}.meter-mark{position:absolute;top:0;bottom:0;width:2px;background:var(--warn)}.meter-status{margin:0;font-size:13px;color:var(--muted)}.meter-status[data-open=true]{color:var(--live);font-weight:600}.slider{width:100%;accent-color:var(--accent)}.board-card{max-width:560px}.board-list{display:flex;flex-direction:column;gap:14px;margin:12px 0;max-height:60vh;overflow-y:auto}.board-row{background:var(--surface-2);border-radius:10px;padding:10px 12px 6px}.board-head{display:flex;align-items:baseline;gap:8px;margin-bottom:4px}.board-name{font-weight:600;font-size:14px}.board-reading{color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}.board-state{margin-left:auto;font-size:12px;color:var(--muted)}.board-state[data-on=true]{color:var(--live)}.board-chart{display:block;width:100%;height:56px}.board-trace{fill:none;stroke:var(--accent);stroke-width:2;stroke-linejoin:round;stroke-linecap:round;vector-effect:non-scaling-stroke}.board-threshold{stroke:var(--muted);stroke-width:1;stroke-dasharray:4 4;opacity:.7;vector-effect:non-scaling-stroke}.board-slider{width:100%;margin:2px 0 0}.recording-banner{margin:0;padding:8px 16px;background:#3a1d1d;color:#ffb3b3;font-size:13px;text-align:center}.board-record{border-top:1px solid var(--bg);margin-top:12px;padding-top:12px}