:root{color-scheme:light;--bg:#f5f5f7;--panel:rgba(255,255,255,0.82);--panel-solid:#ffffff;--line:rgba(0,0,0,0.08);--line-strong:rgba(0,0,0,0.15);--text:#1d1d1f;--muted:#6e6e73;--blue:#0071e3;--blue-press:#0066cc;--green:#248a3d;--red:#c9352b;--shadow:0 18px 48px rgba(0,0,0,0.08);--radius:8px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 54% 0,rgba(255,255,255,.92),transparent 34%),var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,system-ui,sans-serif;font-size:14px;letter-spacing:0}button,input,select,textarea{font:inherit;letter-spacing:0}button{border:1px solid var(--blue);border-radius:7px;min-height:38px;padding:8px 12px;background:var(--blue);color:#fff;cursor:pointer;font-weight:520;transition:background .16s ease,border-color .16s ease,transform .16s ease}button:hover{background:var(--blue-press);border-color:var(--blue-press)}button:active{transform:translateY(1px)}button:disabled{cursor:default;opacity:.55;transform:none}button.secondary{background:rgba(255,255,255,.78);color:var(--text);border-color:var(--line-strong)}button.secondary:hover{background:#fff;border-color:rgba(0,0,0,.22)}input,select,textarea{width:100%;border:1px solid var(--line-strong);border-radius:7px;background:rgba(255,255,255,.92);color:var(--text);min-height:38px;padding:9px 11px;outline:none}textarea{min-height:132px;resize:vertical;line-height:1.5}input:focus,select:focus,textarea:focus{border-color:rgba(0,113,227,.56);box-shadow:0 0 0 3px rgba(0,113,227,.12)}.app-shell{min-height:100vh;display:grid;grid-template-columns:252px minmax(0,1fr)}.sidebar{position:sticky;top:0;height:100vh;padding:18px 14px;background:rgba(242,242,247,.78);-webkit-backdrop-filter:saturate(180%) blur(24px);backdrop-filter:saturate(180%) blur(24px);border-right:1px solid 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var(--line);border-radius:8px;background:rgba(255,255,255,.58)}.graph-canvas-panel{min-height:430px;overflow:hidden}.graph-list-panel{padding:10px;max-height:430px;overflow:auto}.graph-canvas{display:block;width:100%;height:430px}.graph-edge{stroke:rgba(0,113,227,.34);stroke-width:1.4;marker-end:url(#graphArrow)}.graph-edge-label{fill:var(--muted);font-size:11px;paint-order:stroke;stroke:rgba(255,255,255,.85);stroke-width:4px;stroke-linejoin:round}.graph-node circle{fill:#fff;stroke:rgba(0,113,227,.5);stroke-width:1.5;filter:drop-shadow(0 5px 12px rgba(0,0,0,.08));cursor:pointer}.graph-node text{fill:var(--text);font-size:12px;font-weight:520;pointer-events:none}.graph-empty{fill:var(--muted);font-size:13px}.graph-detail{margin-top:12px;padding-top:12px}.graph-detail,.graph-extract{border-top:1px solid var(--line)}.graph-extract{padding-top:14px;margin-top:14px}@media (max-width:1100px){.span-12,.span-4,.span-5,.span-6,.span-7{grid-column:span 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