:root{--bg:#0f172a;--panel:#1e293b;--panel-border:#334155;--text:#e2e8f0;--muted:#94a3b8;--faint:#64748b;--accent:#3b82f6;--accent-hover:color-mix(in srgb, var(--accent), #000 18%);--accent-soft:color-mix(in srgb, var(--accent), transparent 82%);--green:#22c55e;--green-bg:#14532d;--danger:#ef4444;--danger-hover:#dc2626}*{box-sizing:border-box}body{color:var(--text);background:radial-gradient(1200px 600px at 20% -10%,#1e293b 0%,#0f172a 55%) fixed,#0f172a;min-height:100vh;margin:0;font-family:system-ui,Segoe UI,Microsoft YaHei,sans-serif}#app{max-width:1100px;margin:0 auto;padding:24px 20px 40px}header h1{margin:0 0 4px;font-size:24px}.subtitle{color:var(--muted);margin:0 0 24px;font-size:14px}.panel{border:1px solid var(--panel-border);background:#1e293bd9;border-radius:14px;margin-bottom:16px;padding:20px;box-shadow:0 8px 24px #00000040}.panel h2{letter-spacing:.3px;margin:0 0 16px;font-size:15px}label{color:#cbd5e1;margin-bottom:12px;font-size:14px;display:block}input[type=text]{border:1px solid var(--panel-border);background:var(--bg);width:100%;color:var(--text);border-radius:10px;outline:none;margin-top:6px;padding:10px 12px;font-size:14px}input[type=text]:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;margin-right:8px;padding:10px 18px;font-size:14px;transition:background .15s}button:not(.theme-swatch):hover{background:var(--accent-hover)}button:active{transform:translateY(1px)}button.danger{background:var(--danger)}button.danger:hover{background:var(--danger-hover)}.input-with-btn{align-items:center;gap:8px;margin-top:6px;display:flex}.input-with-btn input{margin-top:0}.icon-btn{background:var(--panel);border:1px solid var(--panel-border);width:42px;color:var(--text);flex-shrink:0;margin-right:0;padding:9px 0;font-size:18px}.icon-btn:hover{background:var(--panel-border)}.icon-btn.active{color:#fbbf24;border-color:#fbbf24}.channel-row{align-items:flex-start;gap:8px;margin-bottom:10px;display:flex}.row-label{color:var(--faint);flex-shrink:0;padding-top:7px;font-size:12px}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{background:var(--panel);border:1px solid var(--panel-border);cursor:pointer;border-radius:999px;padding:6px 14px;font-size:13px;transition:border-color .15s}.chip:hover{border-color:var(--accent)}.chip.speaking{border-color:var(--green);background:var(--green-bg)}.muted{color:var(--faint);font-size:13px}.hidden{display:none}.theme-row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.theme-swatch{border:2px solid #ffffff40;border-radius:50%;width:34px;height:34px;margin:0;padding:0}.theme-swatch:hover{transform:scale(1.12)}.custom-theme{color:var(--muted);cursor:pointer;align-items:center;gap:6px;margin-bottom:0;font-size:13px;display:inline-flex}.custom-theme input[type=color]{cursor:pointer;background:0 0;border:none;border-radius:50%;width:34px;height:34px;padding:0}.room-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.room-header h2{margin:0;font-size:17px}.controls{flex-wrap:wrap;gap:8px;display:flex}.controls button{margin-right:0}.voice-list{flex-wrap:wrap;gap:8px;min-height:30px;margin:14px 0;display:flex}.hint{color:var(--faint);margin:0 0 12px;font-size:12px}.room-layout{align-items:stretch;gap:16px;display:flex}.main-col{flex:1;min-width:0}.grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;display:grid}.card{background:var(--bg);border:1px solid var(--panel-border);border-radius:12px;min-height:140px;position:relative;overflow:hidden}.card video{cursor:zoom-in;width:100%;display:block}.card-name{background:#0009;border-radius:999px;padding:4px 10px;font-size:12px;position:absolute;top:8px;left:8px}.chat-panel{background:var(--bg);border:1px solid var(--panel-border);border-radius:12px;flex-direction:column;flex-shrink:0;width:300px;height:min(70vh,560px);display:flex;overflow:hidden}.chat-header{border-bottom:1px solid var(--panel-border);color:var(--muted);justify-content:space-between;align-items:center;padding:10px 14px;font-size:13px;display:flex}.chat-messages{flex-direction:column;flex:1;gap:8px;padding:12px;display:flex;overflow-y:auto}.msg{background:var(--panel);border-radius:12px;align-self:flex-start;max-width:88%;padding:7px 11px;font-size:13px;line-height:1.45}.msg .msg-name{color:var(--muted);margin-bottom:2px;font-size:11px;display:block}.msg.self{background:var(--accent);align-self:flex-end}.msg.self .msg-name{color:#ffffffbf;text-align:right}.msg.system{color:var(--faint);background:0 0;align-self:center;padding:2px 8px;font-size:12px}.chat-input-row{border-top:1px solid var(--panel-border);gap:8px;padding:10px;display:flex}.chat-input-row input{flex:1;margin:0}.chat-input-row button{flex-shrink:0;margin:0}.status{color:var(--muted);min-height:20px;margin-top:12px;font-size:13px}.status.error{color:#f87171}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-thumb{background:var(--panel-border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent)}@media (width<=860px){.room-layout{flex-direction:column}.chat-panel{width:100%;height:320px}}