:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:#273431;--surface:#f9fbfa;--subtle:#edf1ef;--ink:#273431;--muted:#53665f;--line:#cbd5d0;--accent:#176b53;--error:#a52b32;background:#edf1ef;font-family:Segoe UI,Microsoft YaHei,system-ui,sans-serif;font-size:14px}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{border:1px solid var(--line);background:var(--surface);min-height:44px;color:var(--ink);cursor:pointer;border-radius:6px;padding:0 14px;transition:background .15s ease-out}button:hover:not(:disabled){background:var(--subtle)}button:active:not(:disabled){background:var(--line)}button:disabled{opacity:.48;cursor:not-allowed}button.primary{color:#f5faf7;background:var(--accent);border-color:var(--accent)}button.primary:hover:not(:disabled){background:#11533f}button[aria-pressed=true]{background:var(--accent);color:#f5faf7;border-color:var(--accent)}:focus-visible{outline-offset:3px;outline:3px solid #409b7e}input[type=url]{width:100%;min-width:0;min-height:44px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:8px 10px}h1,h2,h3,p{margin:0}h1{font-size:18px;font-weight:650}h2{font-size:15px;font-weight:650}h3{font-size:14px;font-weight:650}p{line-height:1.6}.shell{grid-template-rows:auto auto minmax(0,1fr) auto;height:100dvh;min-height:620px;display:grid}.header{background:var(--surface);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;padding:16px 24px;display:flex}.brand{align-items:baseline;gap:14px;display:flex}.framework{color:var(--muted)}.toolbar{background:var(--surface);border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:8px;padding:10px 24px;display:flex}.separator{background:var(--line);width:1px;height:24px;margin:0 4px}.mode{gap:4px;display:flex}.workspace{grid-template-columns:minmax(0,1fr) 288px;min-height:0;display:grid}.viewport{background:#101916;min-height:300px;position:relative;overflow:hidden}.host{width:100%;height:100%;position:absolute;inset:0}.empty{text-align:center;color:#eff5f1;pointer-events:none;place-content:center;gap:12px;padding:24px;display:grid;position:absolute;inset:0}.empty h2{font-size:24px;font-weight:550}.empty p{color:#b5c8be;max-width:34ch}.empty button{pointer-events:auto;justify-self:center}.scene-caption{pointer-events:none;color:#dce9e1;text-shadow:0 1px 2px #101916;overflow-wrap:anywhere;font-size:12px;position:absolute;bottom:20px;left:24px;right:24px}.panel{background:var(--surface);border-left:1px solid var(--line);padding:24px 20px;overflow:auto}.panel section+section{border-top:1px solid var(--line);margin-top:28px;padding-top:24px}.panel h2,.panel h3{margin-bottom:14px}.panel p{color:var(--muted);font-size:13px}.panel form{gap:8px;display:grid}.panel label{color:var(--muted);font-size:13px}.metrics{grid-template-columns:1fr auto;gap:10px 12px;margin:0;font-size:13px;display:grid}dt{color:var(--muted)}dd{text-align:right;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;margin:0}progress{width:100%;height:6px;accent-color:var(--accent);margin:12px 0}.load-status{overflow-wrap:anywhere;margin-top:12px}.alert{color:var(--error);background:var(--surface);border-top:1px solid var(--line);overflow-wrap:anywhere;padding:12px 24px;line-height:1.5}.footer{color:var(--muted);background:var(--surface);border-top:1px solid var(--line);justify-content:space-between;gap:12px;padding:10px 24px;font-size:12px;display:flex}.model-name{text-overflow:ellipsis;white-space:nowrap;max-width:280px;overflow:hidden}.sr-only{clip-path:inset(50%);width:1px;height:1px;position:absolute;overflow:hidden}@media (prefers-color-scheme:dark){:root{--surface:#202b26;--subtle:#28352e;--ink:#e4eee8;--muted:#afc1b6;--line:#43574b;--accent:#238369;--error:#ffafb5;color:var(--ink);background:var(--subtle)}}@media (width<=900px){.workspace{grid-template-columns:minmax(0,1fr) 248px}.header,.toolbar{padding-left:16px;padding-right:16px}}@media (width<=640px){.shell{grid-template-rows:auto auto auto auto;height:auto;min-height:100dvh}.workspace{flex-direction:column;display:flex}.viewport{height:55dvh;min-height:320px}.panel{border-left:0;border-top:1px solid var(--line)}.panel section+section{margin-top:18px;padding-top:18px}.brand{flex-direction:column;align-items:flex-start;gap:4px}.toolbar{gap:6px;padding:10px}.toolbar button{padding:0 10px}.separator{display:none}.footer{flex-wrap:wrap;padding:10px 16px}}@media (prefers-reduced-motion:reduce){*{transition:none!important}}.workspace.compact{grid-template-columns:minmax(0,1fr)}[hidden]{display:none!important}