diff --git a/src/components/PopiaiEmbedBridge.tsx b/src/components/PopiaiEmbedBridge.tsx
index 51be11d1..e163fa0a 100644
--- a/src/components/PopiaiEmbedBridge.tsx
+++ b/src/components/PopiaiEmbedBridge.tsx
@@ -15,7 +15,8 @@ type BridgeRequest =
   | "popitv:apply-edit-operations"
   | "popitv:run-workflow"
   | "popitv:run-selected"
-  | "popitv:stop-workflow";
+  | "popitv:stop-workflow"
+  | "popitv:measure-nodes";
 
 interface BridgeMessage {
   source?: string;
@@ -25,6 +26,41 @@ interface BridgeMessage {
   operations?: EditOperation[];
 }
 
+interface NodeDimensions {
+  id: string;
+  width: number;
+  height: number;
+}
+
+function measureNodes(nodeIds: string[]): NodeDimensions[] {
+  const state = useWorkflowStore.getState();
+  const measurements: NodeDimensions[] = [];
+
+  for (const nodeId of nodeIds) {
+    const node = state.nodes.find(n => n.id === nodeId);
+    if (node?.measured) {
+      measurements.push({
+        id: nodeId,
+        width: node.measured.width ?? 0,
+        height: node.measured.height ?? 0,
+      });
+    } else {
+      // 如果 measured 不存在，尝试从 DOM 获取
+      const nodeElement = document.querySelector(`[data-id="${nodeId}"]`);
+      if (nodeElement) {
+        const rect = nodeElement.getBoundingClientRect();
+        measurements.push({
+          id: nodeId,
+          width: rect.width,
+          height: rect.height,
+        });
+      }
+    }
+  }
+
+  return measurements;
+}
+
 function isSafeParentOrigin(origin: string | null): origin is string {
   if (!origin) return false;
   return origin === "file://" || /^https?:\/\/(localhost|127\.0\.0\.1|\[::1\])(:\d+)?$/.test(origin);
@@ -258,6 +294,14 @@ export function PopiaiEmbedBridge() {
             );
           });
         postSnapshot(requestId);
+        return;
+      }
+
+      if (event.data.type === "popitv:measure-nodes") {
+        const nodeIds = event.data.nodeIds ?? [];
+        const measurements = measureNodes(nodeIds);
+        postToParent("popitv:node-dimensions", { measurements }, requestId);
+        return;
       }
     };
 
diff --git a/src/lib/chat/editOperations.ts b/src/lib/chat/editOperations.ts
index 601b7dd1..27b4635b 100644
--- a/src/lib/chat/editOperations.ts
+++ b/src/lib/chat/editOperations.ts
@@ -101,7 +101,7 @@ export function applyEditOperations(
           type: operation.nodeType,
           position,
           data: nodeData,
-          measured: dimensions,
+          style: { width: dimensions.width, height: dimensions.height },
         };
 
         nodes.push(newNode);