:root{--ink: #1c2430;--muted: #697386;--grid: rgba(28, 36, 48, .06);--line: #1d2430;--blue: #2864f0;--blue-soft: #eef4ff;--panel: #ffffff;--red: #d94c4c;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;color:var(--ink)}*{box-sizing:border-box}html,body,#root{width:100%;height:100%;margin:0;overflow:hidden}button,textarea,input,select{font:inherit}button{cursor:pointer}.app-shell,.workspace,.canvas-frame{width:100%;height:100%}.app-shell{overflow:hidden}.app-shell.is-grabbing,.app-shell.is-grabbing *{cursor:grabbing!important}.workspace{background-color:#f8fafc;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:24px 24px}.canvas-frame{position:relative;overflow:hidden}.canvas-viewport{width:100%;height:100%;cursor:grab;overflow:auto;scrollbar-width:none}.canvas-viewport.panning{cursor:grabbing}.canvas-viewport::-webkit-scrollbar{display:none}.canvas-scaled{position:relative;min-width:100%;min-height:100%}.canvas-world{position:relative;min-width:100%;min-height:100%;transform-origin:0 0}.connections{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;overflow:visible;pointer-events:none}.edge-path{fill:none;stroke:var(--line);stroke-linecap:round;stroke-width:2.7;opacity:.62;pointer-events:none}.edge-flow{fill:none;stroke:var(--blue);stroke-dasharray:9 22;stroke-dashoffset:0;stroke-linecap:round;stroke-width:3.1;opacity:.88;pointer-events:none;animation:edge-flow 1.05s linear infinite;filter:drop-shadow(0 0 4px rgba(47,109,246,.28))}.edge-draft{stroke:var(--blue);stroke-dasharray:7 11;stroke-width:2.6;opacity:.78;animation:edge-flow .95s linear 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#26334d2e;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.context-menu button{display:flex;align-items:center;gap:8px;width:100%;min-height:32px;padding:0 10px;color:var(--ink);text-align:left;background:transparent;border:0;border-radius:6px;font-size:13px}.context-menu button svg{flex:0 0 auto}.context-menu button span{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.context-menu button:hover{background:var(--blue-soft)}.context-menu button.danger{color:var(--red)}.context-divider{display:block;height:1px;margin:3px 2px;background:#e5e9f0}.image-modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;display:grid;place-items:center;padding:42px;background:#0f172a94;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.image-modal-panel{position:relative;display:grid;max-width:min(86vw,980px);max-height:86vh;place-items:center}.image-modal-panel img{display:block;max-width:min(86vw,980px);max-height:86vh;object-fit:contain;background:#fff;border-radius:8px;box-shadow:0 26px 72px #00000047}.image-modal-tools{position:absolute;top:10px;right:10px;z-index:2;display:flex;gap:8px}.image-modal-tools button{width:36px;min-width:36px;height:36px;padding:0}@keyframes spin{to{transform:rotate(360deg)}}