:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#101312;--surface:#151a18;--line:#303a34;--text:#eff4ed;--muted:#a5b0a7;--accent:#c2ee91;--error:#ffb3a7;color:var(--text);background:var(--bg);font-family:PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{border:1px solid var(--line);background:var(--surface);min-height:44px;color:var(--text);cursor:pointer;border-radius:10px;padding:0 16px;transition:background .16s,border-color .16s}button:hover:not(:disabled){border-color:var(--muted);background:var(--line)}button:disabled{opacity:.35;cursor:not-allowed}button:focus-visible,input:focus-visible,#viewer:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.primary{background:var(--accent);color:var(--bg);border-color:var(--accent);font-weight:600}.primary:hover:not(:disabled){background:var(--text);border-color:var(--text)}header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;height:88px;padding:0 36px;display:flex}.brand{align-items:center;gap:12px;display:flex}.brand svg{color:var(--accent);width:34px;height:34px}.wordmark{letter-spacing:2px;font-size:20px;font-weight:650}.wordmark small{letter-spacing:2px;color:var(--muted);margin-top:4px;font-size:11px;display:block}.privacy{color:var(--muted);align-items:center;gap:8px;font-size:12px;display:flex}.dot{background:var(--accent);border-radius:50%;width:6px;height:6px}main{max-width:1800px;margin:auto;padding:28px 36px 18px}.intro{justify-content:space-between;align-items:center;gap:20px;margin-bottom:22px;display:flex}h1{letter-spacing:-.5px;margin:0 0 9px;font-size:26px;font-weight:550}p{color:var(--muted);text-wrap:pretty;margin:0;font-size:13px;line-height:1.8}.eyebrow{letter-spacing:1.5px;color:var(--muted);font:11px monospace}.open-button{justify-content:center;align-items:center;gap:10px;display:flex}svg{fill:none;stroke:currentColor;stroke-width:1.6px;stroke-linecap:round;stroke-linejoin:round;width:18px;height:18px}.workspace{border:1px solid var(--line);background:var(--surface);border-radius:16px;overflow:hidden}.scene-bar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;height:54px;padding:0 20px;font-size:12px;display:flex}.scene-bar .file{align-items:center;gap:9px;min-width:0;display:flex}.filename{text-overflow:ellipsis;white-space:nowrap;max-width:600px;overflow:hidden}.tag{color:var(--accent);border:1px solid var(--line);white-space:nowrap;border-radius:5px;padding:5px 8px;font:10px monospace}.viewer{background:var(--bg);touch-action:none;isolation:isolate;height:clamp(360px,62vh,900px);position:relative;overflow:hidden}.viewer canvas{cursor:grab;display:block;position:absolute;inset:0}.viewer.dragging canvas{cursor:grabbing}.viewer:fullscreen{width:100vw;height:100vh}.empty{text-align:center;background-image:linear-gradient(var(--surface) 1px,transparent 1px),linear-gradient(90deg,var(--surface) 1px,transparent 1px);background-size:52px 52px;flex-direction:column;justify-content:center;align-items:center;gap:18px;height:100%;display:flex}.orb{width:116px;height:116px;color:var(--muted);opacity:.6;margin-bottom:4px}.empty h2{margin:0;font-size:22px;font-weight:500}.empty p{max-width:360px;padding:0 16px}.empty-actions{gap:10px;margin:4px 0;display:flex}.formats{letter-spacing:1px;color:var(--muted);font:11px monospace}[hidden]{display:none!important}.scene-top{z-index:1;pointer-events:none;gap:7px;display:flex;position:absolute;top:18px;left:20px}.scene-top span,.view-label{letter-spacing:.8px;background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:7px 10px;font:11px monospace}.view-label{z-index:1;pointer-events:none;color:var(--muted);position:absolute;top:18px;right:20px}.crosshair{opacity:.65;pointer-events:none;width:22px;height:22px;filter:drop-shadow(0 1px 2px var(--bg));z-index:1;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.crosshair:before,.crosshair:after{content:"";background:var(--text);position:absolute}.crosshair:before{width:22px;height:1px;top:10px}.crosshair:after{width:1px;height:22px;left:10px}.scene-bottom{z-index:1;pointer-events:none;justify-content:space-between;align-items:end;display:flex;position:absolute;bottom:20px;left:20px;right:20px}.scene-bottom p{background:var(--bg);color:var(--text);border-radius:6px;padding:7px 11px;font-size:11px}.compass{border:1px solid var(--muted);background:var(--bg);width:66px;height:66px;color:var(--muted);border-radius:50%;place-items:center;font:10px monospace;display:grid;position:relative}.compass:before{content:"0°";position:absolute;top:6px}.needle{color:var(--accent);transform-origin:50%;font-size:23px}.toolbar{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;min-height:76px;padding:14px 20px;display:flex}.tools{align-items:center;gap:8px;display:flex}.tools button{justify-content:center;align-items:center;gap:7px;padding:0 12px;font-size:12px;display:flex}.tools button[aria-pressed=true]{color:var(--accent);border-color:var(--accent)}.zoom-group{align-items:center;gap:12px;display:flex}.zoom-group label{color:var(--muted);font-size:12px}input[type=range]{accent-color:var(--accent);width:130px}.metric{min-width:37px;font:12px monospace}.divider{background:var(--line);width:1px;height:24px;margin:0 4px}.status-row{color:var(--muted);justify-content:space-between;gap:16px;padding:14px 2px;font-size:11px;line-height:1.8;display:flex}.status-row 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spin{to{transform:rotate(360deg)}}footer{letter-spacing:1px;color:var(--muted);border-top:1px solid var(--line);justify-content:space-between;align-items:center;padding:12px 0 0;font:10px monospace;display:flex}@media (width<=760px){header{height:74px;padding:0 18px}.privacy{font-size:10px}.privacy .privacy-long{display:none}main{padding:22px 16px 14px}.intro{align-items:end}.intro h1{font-size:23px}.intro p{max-width:225px;font-size:12px}.eyebrow{display:none}.viewer{height:58vh;min-height:350px}.scene-bar{padding:0 13px}.filename{max-width:200px}.toolbar{flex-wrap:wrap;gap:14px;padding:12px}.tools{justify-content:space-between;gap:4px;width:100%}.tools button{padding:0 9px}.zoom-group{justify-content:center;width:100%}input[type=range]{width:55%}.status-row{flex-direction:column;gap:4px}.status-text{max-width:100%}.scene-bottom p{max-width:220px;font-size:10px}.scene-top{left:13px}.view-label{right:13px}.intro>.primary{white-space:nowrap;padding:0 12px}.empty h2{font-size:20px}.empty-actions{flex-direction:column;width:180px}.empty{gap:14px}.orb{width:90px;height:90px}.divider{display:none}footer{font-size:9px}}@media (prefers-reduced-motion:reduce){*{transition:none!important}.spinner{animation:none}}.hdr-controls{border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;padding:13px 20px;font-size:12px;display:flex}.hdr-controls .hdr-title{color:var(--accent);letter-spacing:1px;font:11px monospace}.hdr-settings{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.hdr-settings label{color:var(--muted)}.hdr-settings select{font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:8px;min-height:44px;padding:0 10px}.hdr-settings select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.hdr-settings output{min-width:58px;font:12px monospace}.hdr-settings button{font-size:12px}.hdr-settings input{width:140px}@media (width<=760px){.hdr-controls{padding:12px}.hdr-settings{gap:10px;width:100%}.hdr-settings input{flex:1;min-width:90px}.hdr-title{width:100%}}.error-bubble{z-index:6;border:1px solid var(--error);width:min(480px,100% - 40px);max-height:calc(100% - 36px);color:var(--error);cursor:default;background:#291b19;border-radius:16px;align-items:start;gap:14px;padding:20px;display:flex;position:absolute;top:18px;left:20px;overflow:auto;box-shadow:0 12px 36px #0006}.error-bubble>div{flex:1;min-width:0}.error-bubble strong{font-size:19px;font-weight:600;line-height:1.5;display:block}.error-bubble p{color:#ffe0d9;overflow-wrap:anywhere;margin-top:8px;font-size:15px;line-height:1.7}.error-bubble button{min-width:44px;color:var(--error);background:0 0;border-color:#744b43;flex-shrink:0;padding:0;font-size:26px;line-height:1}.error-bubble button:hover{background:#4a2b25}@media (width<=760px){.error-bubble{gap:8px;width:calc(100% - 26px);padding:16px;top:13px;left:13px}.error-bubble strong{font-size:18px}.error-bubble p{font-size:15px}}.large-file-dialog{border:1px solid var(--line);background:var(--surface);width:min(460px,100% - 32px);max-height:calc(100% - 32px);color:var(--text);border-radius:18px;padding:28px;overflow:auto;box-shadow:0 24px 80px #0008}.large-file-dialog::backdrop{background:#0009}.large-file-dialog h2{margin:0 0 16px;font-size:22px;font-weight:600;line-height:1.4}.large-file-dialog .large-file-name{overflow-wrap:anywhere;color:var(--text);font-size:14px}.large-file-size{color:var(--accent);margin:8px 0 16px;font:20px monospace;display:block}.large-file-actions{justify-content:end;gap:12px;margin-top:24px;display:flex}.large-file-actions button{min-width:100px}@media (width<=760px){.large-file-dialog{padding:22px}.large-file-dialog h2{font-size:20px}}.loading-options{border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:12px;padding:14px 20px;font-size:12px;display:flex}.loading-options label{color:var(--accent)}.loading-options select{font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:8px;max-width:100%;min-height:44px;padding:0 10px}.loading-options select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.loading-options span{color:var(--muted);flex:1;min-width:200px;line-height:1.7}.loading-options button{font-size:12px}.detail-progress{z-index:2;background:var(--bg);border:1px solid var(--line);max-width:calc(100% - 40px);color:var(--accent);border-radius:10px;align-items:center;gap:12px;padding:8px 12px;font-size:12px;display:flex;position:absolute;bottom:80px;left:20px}.detail-progress button{min-height:36px;padding:0 10px;font-size:11px}@media (width<=760px){.loading-options{gap:10px;padding:12px}.loading-options span{flex-basis:100%;min-width:0}.detail-progress{flex-wrap:wrap;max-width:calc(100% - 26px);font-size:11px;left:13px}}