diff --git a/apps/ai-game-creator-shell/src/view/ui-editor/components/EditorDialogs.tsx b/apps/ai-game-creator-shell/src/view/ui-editor/components/EditorDialogs.tsx
index 1bad535ed..60ed0142b 100644
--- a/apps/ai-game-creator-shell/src/view/ui-editor/components/EditorDialogs.tsx
+++ b/apps/ai-game-creator-shell/src/view/ui-editor/components/EditorDialogs.tsx
@@ -84,35 +84,6 @@ export function EditorDialogs({
           </button>
         </div>
       </ThemedModal>
-
-      <ThemedModal
-        open={controller.pendingRoleChange !== null}
-        onClose={controller.cancelRoleChange}
-        ariaLabel="确认移除页面组件树"
-        panelClassName="w-[440px] rounded-2xl p-5"
-      >
-        <h2 className="m-0 text-base font-semibold">确认移除页面组件树？</h2>
-        <p className="text-sm leading-6 text-(--platform-text-soft)">
-          这张界面图当前是 Page，已有 UI
-          Tree。改为其它界面角色会自动删除页面根节点及其全部子节点，操作不可恢复。
-        </p>
-        <div className="mt-5 flex justify-end gap-2">
-          <button
-            type="button"
-            className="rounded-lg border border-(--platform-subpanel-border) px-3 py-2 text-xs"
-            onClick={controller.cancelRoleChange}
-          >
-            取消
-          </button>
-          <button
-            type="button"
-            className="rounded-lg bg-red-600 px-3 py-2 text-xs font-semibold text-white"
-            onClick={controller.confirmRoleChange}
-          >
-            移除组件树并修改
-          </button>
-        </div>
-      </ThemedModal>
     </>
   );
 }
diff --git a/apps/ai-game-creator-shell/src/view/ui-editor/components/Inspector/InspectorSidebar.tsx b/apps/ai-game-creator-shell/src/view/ui-editor/components/Inspector/InspectorSidebar.tsx
index a520f5397..22ba567eb 100644
--- a/apps/ai-game-creator-shell/src/view/ui-editor/components/Inspector/InspectorSidebar.tsx
+++ b/apps/ai-game-creator-shell/src/view/ui-editor/components/Inspector/InspectorSidebar.tsx
@@ -11,6 +11,7 @@ import type { UIDesignImageRole } from '../../../../features/ui-editor/types/UID
 import { UI_DESIGN_IMAGE_ROLES } from '../../model';
 import type { UiEditorPageController } from '../../useUiEditorPage';
 import { PrerequisiteIssues } from '../PrerequisiteIssues';
+import { ComponentPanel } from './Components/ComponentPanel';
 import { SpriteBorderEditor } from './SpriteBorder/SpriteBorderEditor';
 import TransformEditor from './Transform/TransformEditor';
 
@@ -59,6 +60,68 @@ export function InspectorSidebar({
   controller: UiEditorPageController;
 }) {
   const view = getInspectorView(controller);
+  let inspectorContent: ReactNode;
+  switch (view.kind) {
+    case 'node':
+      inspectorContent = (
+        <NodeInspector
+          node={view.node}
+          parentSize={view.parentSize}
+          readOnly={
+            controller.editor.isLocked ||
+            view.node.id === controller.treeForActiveImage?.root.id
+          }
+          keepChildrenUnchanged={controller.keepChildrenUnchanged}
+          onKeepChildrenUnchangedChange={controller.setKeepChildrenUnchanged}
+          onMetadataChange={controller.setNodeMetadata}
+          onTransformChange={controller.setNodeTransform}
+          sprites={controller.sprites}
+          fonts={controller.editor.state.font_assets}
+          onSetComponents={controller.setNodeComponents}
+          onInsertComponent={controller.insertNodeComponent}
+          onDeleteComponent={controller.deleteNodeComponent}
+          onMoveComponent={controller.moveNodeComponent}
+        />
+      );
+      break;
+    case 'sprite':
+      inspectorContent = (
+        <SpriteInspector
+          sprite={view.sprite}
+          spriteId={view.spriteId}
+          previewUrl={view.previewUrl}
+          referenceCount={view.referenceCount}
+          onNameChange={controller.setSpriteName}
+          onAssetTypeChange={controller.setSpriteAssetType}
+          onBorderChange={controller.setSpriteBorder}
+          onDelete={() => controller.requestSpriteRemoval(view.spriteId)}
+          deleteDisabled={controller.editor.isLocked}
+        />
+      );
+      break;
+    case 'image':
+      inspectorContent = (
+        <ImageInspector
+          image={view.image}
+          imageId={view.imageId}
+          pageOptions={view.pageOptions}
+          onNameChange={controller.setImageName}
+          onDescriptionChange={controller.setImageDescription}
+          onRoleChange={controller.setImageRole}
+          onSlaveToChange={controller.setImageSlaveTo}
+          onDelete={() => controller.requestDesignImageRemoval(view.imageId)}
+          deleteDisabled={controller.editor.isLocked}
+        />
+      );
+      break;
+    case 'empty':
+      inspectorContent = (
+        <p className="mt-4 text-xs text-(--platform-text-soft)">
+          选择一张界面图后可编辑其属性。
+        </p>
+      );
+      break;
+  }
 
   return (
     <aside className="flex min-h-0 flex-col overflow-y-auto border-l border-(--platform-subpanel-border) bg-(--platform-subpanel-fill) p-4">
@@ -68,28 +131,13 @@ export function InspectorSidebar({
           {INSPECTOR_VIEW_TITLES[view.kind]}
         </h2>
       </div>
-
-      <InspectorContent controller={controller} view={view} />
+      {inspectorContent}
 
       {controller.issues ? (
         <div className="mt-5">
           <PrerequisiteIssues issues={controller.issues} />
         </div>
       ) : null}
-
-      {view.kind === 'sprite' ? (
-        <DeleteResourceButton
-          label="删除"
-          disabled={controller.editor.isLocked}
-          onClick={() => controller.requestSpriteRemoval(view.spriteId)}
-        />
-      ) : view.kind === 'image' ? (
-        <DeleteResourceButton
-          label="删除"
-          disabled={controller.editor.isLocked}
-          onClick={() => controller.requestDesignImageRemoval(view.imageId)}
-        />
-      ) : null}
     </aside>
   );
 }
@@ -137,75 +185,61 @@ function getInspectorView(controller: UiEditorPageController): InspectorView {
   return { kind: 'empty' };
 }
 
-function InspectorContent({
-  controller,
-  view,
-}: {
-  controller: UiEditorPageController;
-  view: InspectorView;
-}) {
-  switch (view.kind) {
-    case 'node':
-      return (
-        <NodeInspector
-          node={view.node}
-          parentSize={view.parentSize}
-          readOnly={
-            controller.editor.isLocked ||
-            view.node.id === controller.treeForActiveImage?.root.id
-          }
-          onMetadataChange={controller.setNodeMetadata}
-          onTransformChange={controller.setNodeTransform}
-        />
-      );
-    case 'sprite':
-      return (
-        <SpriteInspector
-          sprite={view.sprite}
-          spriteId={view.spriteId}
-          previewUrl={view.previewUrl}
-          referenceCount={view.referenceCount}
-          onNameChange={controller.setSpriteName}
-          onAssetTypeChange={controller.setSpriteAssetType}
-          onBorderChange={controller.setSpriteBorder}
-        />
-      );
-    case 'image':
-      return (
-        <ImageInspector
-          image={view.image}
-          imageId={view.imageId}
-          pageOptions={view.pageOptions}
-          onNameChange={controller.setImageName}
-          onDescriptionChange={controller.setImageDescription}
-          onRoleChange={controller.setImageRole}
-          onSlaveToChange={controller.setImageSlaveTo}
-        />
-      );
-    case 'empty':
-      return (
-        <p className="mt-4 text-xs text-(--platform-text-soft)">
-          选择一张界面图后可编辑其属性。
-        </p>
-      );
-  }
-}
-
 function NodeInspector({
   node,
   parentSize,
   readOnly,
+  keepChildrenUnchanged,
+  onKeepChildrenUnchangedChange,
   onMetadataChange,
   onTransformChange,
+  sprites,
+  fonts,
+  onSetComponents,
+  onInsertComponent,
+  onDeleteComponent,
+  onMoveComponent,
 }: {
   node: SelectedNode;
   parentSize: UiEditorPageController['selectedNodeParentSize'];
   readOnly: boolean;
+  keepChildrenUnchanged: boolean;
+  onKeepChildrenUnchangedChange: (value: boolean) => void;
   onMetadataChange: UiEditorPageController['setNodeMetadata'];
   onTransformChange: UiEditorPageController['setNodeTransform'];
+  sprites: UiEditorPageController['sprites'];
+  fonts: UiEditorPageController['editor']['state']['font_assets'];
+  onSetComponents: UiEditorPageController['setNodeComponents'];
+  onInsertComponent: UiEditorPageController['insertNodeComponent'];
+  onDeleteComponent: UiEditorPageController['deleteNodeComponent'];
+  onMoveComponent: UiEditorPageController['moveNodeComponent'];
 }) {
   return (
     <div className="mt-4 space-y-4">
+      <div
+        className="flex items-center rounded-lg border border-(--platform-subpanel-border) bg-white/70 p-0.5 text-[10px]"
+        role="group"
+        aria-label="子节点布局行为"
+      >
+        <button
+          type="button"
+          aria-pressed={!keepChildrenUnchanged}
+          disabled={readOnly}
+          onClick={() => onKeepChildrenUnchangedChange(false)}
+          className={`flex-1 rounded-md px-2 py-1.5 transition ${!keepChildrenUnchanged ? 'bg-blue-600 text-white' : 'text-(--platform-text-soft) hover:bg-black/5'} disabled:cursor-not-allowed disabled:opacity-50`}
+        >
+          子节点跟随父节点变化
+        </button>
+        <button
+          type="button"
+          aria-pressed={keepChildrenUnchanged}
+          disabled={readOnly}
+          onClick={() => onKeepChildrenUnchangedChange(true)}
+          className={`flex-1 rounded-md px-2 py-1.5 transition ${keepChildrenUnchanged ? 'bg-orange-500 text-white' : 'text-(--platform-text-soft) hover:bg-black/5'} disabled:cursor-not-allowed disabled:opacity-50`}
+        >
+          子节点保持不变
+        </button>
+      </div>
       <InspectorInput
         label="名称"
         value={node.metadata.name}
@@ -232,9 +266,16 @@ function NodeInspector({
         readOnly={readOnly}
         onChange={onTransformChange}
       />
-      <p className="m-0 text-[10px] text-(--platform-text-soft)">
-        组件预览与编辑待支持。
-      </p>
+      <ComponentPanel
+        components={node.components}
+        sprites={sprites}
+        fonts={fonts}
+        readOnly={readOnly}
+        onSetComponents={onSetComponents}
+        onInsertComponent={onInsertComponent}
+        onDeleteComponent={onDeleteComponent}
+        onMoveComponent={onMoveComponent}
+      />
       <ResourceId value={node.id} />
     </div>
   );
@@ -248,6 +289,8 @@ function SpriteInspector({
   onNameChange,
   onAssetTypeChange,
   onBorderChange,
+  onDelete,
+  deleteDisabled,
 }: {
   sprite: SelectedSprite;
   spriteId: SelectedSpriteId;
@@ -256,6 +299,8 @@ function SpriteInspector({
   onNameChange: UiEditorPageController['setSpriteName'];
   onAssetTypeChange: UiEditorPageController['setSpriteAssetType'];
   onBorderChange: UiEditorPageController['setSpriteBorder'];
+  onDelete: () => void;
+  deleteDisabled: boolean;
 }) {
   return (
     <div className="mt-4 space-y-4">
@@ -293,6 +338,11 @@ function SpriteInspector({
         onChange={onBorderChange}
       />
       <ResourceId value={spriteId} />
+      <DeleteResourceButton
+        label="删除"
+        disabled={deleteDisabled}
+        onClick={onDelete}
+      />
     </div>
   );
 }
@@ -305,6 +355,8 @@ function ImageInspector({
   onDescriptionChange,
   onRoleChange,
   onSlaveToChange,
+  onDelete,
+  deleteDisabled,
 }: {
   image: ActiveImage;
   imageId: ActiveImageId;
@@ -313,6 +365,8 @@ function ImageInspector({
   onDescriptionChange: UiEditorPageController['setImageDescription'];
   onRoleChange: UiEditorPageController['setImageRole'];
   onSlaveToChange: UiEditorPageController['setImageSlaveTo'];
+  onDelete: () => void;
+  deleteDisabled: boolean;
 }) {
   return (
     <div className="mt-4 space-y-4">
@@ -366,6 +420,11 @@ function ImageInspector({
         </InspectorSelect>
       ) : null}
       <ResourceId value={imageId} />
+      <DeleteResourceButton
+        label="删除"
+        disabled={deleteDisabled}
+        onClick={onDelete}
+      />
     </div>
   );
 }
diff --git a/apps/ai-game-creator-shell/src/view/ui-editor/components/PreviewWorkspace.tsx b/apps/ai-game-creator-shell/src/view/ui-editor/components/preview/PreviewWorkspace.tsx
similarity index 66%
rename from apps/ai-game-creator-shell/src/view/ui-editor/components/PreviewWorkspace.tsx
rename to apps/ai-game-creator-shell/src/view/ui-editor/components/preview/PreviewWorkspace.tsx
index 59ed041b4..5425f495e 100644
--- a/apps/ai-game-creator-shell/src/view/ui-editor/components/PreviewWorkspace.tsx
+++ b/apps/ai-game-creator-shell/src/view/ui-editor/components/preview/PreviewWorkspace.tsx
@@ -1,3 +1,18 @@
+import {
+  type CanvasViewport,
+  createPanDragState,
+  type DragState,
+  fitViewportToBounds,
+  moveViewportFromPan,
+  resolveViewportFromWheel,
+  scaleViewportFromScreenPoint,
+} from '@genarrative/image-canvas-core';
+import {
+  CanvasViewport as SharedCanvasViewport,
+  CanvasWorld,
+  ZoomControls,
+} from '@genarrative/image-canvas-react';
+import { Image as ImageIcon, Minus, Plus, ScanSearch } from 'lucide-react';
 import {
   type PointerEvent as ReactPointerEvent,
   useCallback,
@@ -6,108 +21,10 @@ import {
   useRef,
   useState,
 } from 'react';
-import { Image as ImageIcon, Minus, Plus, ScanSearch } from 'lucide-react';
-import {
-  createPanDragState,
-  fitViewportToBounds,
-  moveViewportFromPan,
-  resolveViewportFromWheel,
-  scaleViewportFromScreenPoint,
-  type CanvasViewport,
-  type DragState,
-} from '@genarrative/image-canvas-core';
-import {
-  CanvasViewport as SharedCanvasViewport,
-  CanvasWorld,
-  ZoomControls,
-} from '@genarrative/image-canvas-react';
 
-import type { Node as UiNode } from '../../../features/ui-editor/types/Node';
-import { tf2css } from '../../../features/ui-editor/utils/transform/tf2css';
-import type { UiEditorPageController } from '../useUiEditorPage';
-
-type NodeDragState = {
-  nodeId: string;
-  pointerId: number;
-  startClientX: number;
-  startClientY: number;
-  startTransform: UiNode['transform'];
-};
-
-function PreviewNode({
-  node,
-  isRoot = false,
-  selectedNodeId,
-  onSelectNode,
-  onNodePointerDown,
-  onNodePointerMove,
-  onNodePointerUp,
-}: {
-  node: UiNode;
-  isRoot?: boolean;
-  selectedNodeId: string | null;
-  onSelectNode: (id: string) => void;
-  onNodePointerDown: (
-    event: ReactPointerEvent<HTMLDivElement>,
-    node: UiNode,
-  ) => void;
-  onNodePointerMove: (event: ReactPointerEvent<HTMLDivElement>) => void;
-  onNodePointerUp: (event: ReactPointerEvent<HTMLDivElement>) => void;
-}) {
-  let geometry;
-  try {
-    geometry = tf2css(node.transform);
-  } catch {
-    // TODO: expose malformed node diagnostics without breaking the rest of the preview.
-    return null;
-  }
-
-  return (
-    <div
-      data-node-id={node.id}
-      className={`absolute min-h-0 min-w-0 ${isRoot ? 'cursor-default' : 'cursor-move'}`}
-      style={{
-        ...geometry,
-        outline:
-          selectedNodeId === node.id
-            ? '2px solid rgb(249 115 22)'
-            : '1px solid rgb(59 130 246 / 70%)',
-        outlineOffset: selectedNodeId === node.id ? 0 : -1,
-        backgroundColor:
-          selectedNodeId === node.id
-            ? 'rgb(249 115 22 / 10%)'
-            : 'rgb(59 130 246 / 4%)',
-      }}
-      onClick={(event) => {
-        event.stopPropagation();
-        onSelectNode(node.id);
-      }}
-      onPointerDown={(event) => onNodePointerDown(event, node)}
-      onPointerMove={onNodePointerMove}
-      onPointerUp={onNodePointerUp}
-      onPointerCancel={onNodePointerUp}
-      title={node.metadata.name || undefined}
-    >
-      {node.metadata.name ? (
-        <span className="pointer-events-none absolute left-0 top-0 max-w-full truncate bg-blue-600/80 px-1 text-[9px] leading-4 text-white">
-          {node.metadata.name}
-        </span>
-      ) : null}
-      {/* TODO: render supported Component variants once component preview is in scope. */}
-      {node.children.map((child) => (
-        <PreviewNode
-          key={child.id}
-          node={child}
-          selectedNodeId={selectedNodeId}
-          onSelectNode={onSelectNode}
-          onNodePointerDown={onNodePointerDown}
-          onNodePointerMove={onNodePointerMove}
-          onNodePointerUp={onNodePointerUp}
-        />
-      ))}
-    </div>
-  );
-}
+import type { UiEditorPageController } from '../../useUiEditorPage';
+import { type UiEditorRenderMode, UiTreeRenderer } from './UiTreeRenderer';
+import { useNodeTransformInteraction } from './useNodeTransformInteraction';
 
 export function PreviewWorkspace({
   controller,
@@ -118,13 +35,14 @@ export function PreviewWorkspace({
   const viewportElementRef = useRef<HTMLDivElement>(null);
   const viewportRef = useRef<CanvasViewport>({ x: 0, y: 0, scale: 0.5 });
   const panRef = useRef<Extract<DragState, { kind: 'pan' }> | null>(null);
-  const nodeDragRef = useRef<NodeDragState | null>(null);
   const [viewport, setViewportState] = useState<CanvasViewport>(
     viewportRef.current,
   );
   const [canvasSize, setCanvasSize] = useState({ width: 900, height: 640 });
   const [spaceHeld, setSpaceHeld] = useState(false);
-  const tree = controller.treeForActiveImage;
+  const [renderMode, setRenderMode] =
+    useState<UiEditorRenderMode>('editor-overlay');
+  const tree = controller.treeForActiveImage ?? null;
   const logicalSize = useMemo(() => {
     if (!activeImage) return null;
     const ppu = activeImage.pixels_per_unit;
@@ -146,6 +64,23 @@ export function PreviewWorkspace({
     activeImage?.pixels_per_unit,
   ]);
 
+  const nodeInteractions = useNodeTransformInteraction({
+    activeImageId,
+    controller,
+    logicalSize,
+    spaceHeld,
+    tree,
+    viewportRef,
+  });
+  const {
+    onNodePointerDown,
+    onNodePointerMove,
+    onNodePointerUp,
+    onNodeResizePointerDown,
+    onNodeResizePointerMove,
+    onNodeResizePointerUp,
+  } = nodeInteractions;
+
   const setViewport = useCallback((next: CanvasViewport) => {
     viewportRef.current = next;
     setViewportState(next);
@@ -241,54 +176,6 @@ export function PreviewWorkspace({
     };
   }, [fitToCanvas, logicalSize, setViewport]);
 
-  const handleNodePointerDown = useCallback(
-    (event: ReactPointerEvent<HTMLDivElement>, node: UiNode) => {
-      if (event.button !== 0 || spaceHeld || node.id === tree?.root.id) return;
-      event.stopPropagation();
-      event.currentTarget.setPointerCapture(event.pointerId);
-      controller.selectNode(node.id);
-      nodeDragRef.current = {
-        nodeId: node.id,
-        pointerId: event.pointerId,
-        startClientX: event.clientX,
-        startClientY: event.clientY,
-        startTransform: structuredClone(node.transform),
-      };
-    },
-    [controller, spaceHeld, tree?.root.id],
-  );
-
-  const handleNodePointerMove = useCallback(
-    (event: ReactPointerEvent<HTMLDivElement>) => {
-      event.stopPropagation();
-      const drag = nodeDragRef.current;
-      if (!drag || drag.pointerId !== event.pointerId || !activeImageId) return;
-      const logicalDeltaX =
-        (event.clientX - drag.startClientX) / viewportRef.current.scale;
-      const logicalDeltaY =
-        (event.clientY - drag.startClientY) / viewportRef.current.scale;
-      const nextTransform = structuredClone(drag.startTransform);
-      nextTransform.offset_min[0] += logicalDeltaX;
-      nextTransform.offset_min[1] += logicalDeltaY;
-      nextTransform.offset_max[0] += logicalDeltaX;
-      nextTransform.offset_max[1] += logicalDeltaY;
-      controller.updateNodeTransform(activeImageId, drag.nodeId, nextTransform);
-    },
-    [activeImageId, controller],
-  );
-
-  const handleNodePointerUp = useCallback(
-    (event: ReactPointerEvent<HTMLDivElement>) => {
-      event.stopPropagation();
-      if (nodeDragRef.current?.pointerId !== event.pointerId) return;
-      nodeDragRef.current = null;
-      if (event.currentTarget.hasPointerCapture(event.pointerId)) {
-        event.currentTarget.releasePointerCapture(event.pointerId);
-      }
-    },
-    [],
-  );
-
   const handlePointerDown = (event: ReactPointerEvent<HTMLDivElement>) => {
     if (event.button === 1 || (event.button === 0 && spaceHeld)) {
       event.preventDefault();
@@ -346,12 +233,34 @@ export function PreviewWorkspace({
         <h1 className="m-0 text-sm font-semibold">
           {controller.activeToolLabel}
         </h1>
-        <span className="text-[10px] text-(--platform-text-soft)">
-          {Object.keys(controller.images).length} 张界面图 ·{' '}
-          {Object.keys(controller.sprites).length} 项素材
-        </span>
+        <div className="flex items-center gap-3">
+          <div className="flex items-center rounded-lg border border-(--platform-subpanel-border) bg-white/70 p-0.5 text-[10px]">
+            <button
+              type="button"
+              className={`rounded-md px-2 py-1 ${renderMode === 'editor-overlay' ? 'bg-blue-600 text-white' : 'text-(--platform-text-soft)'}`}
+              aria-pressed={renderMode === 'editor-overlay'}
+              onClick={() => setRenderMode('editor-overlay')}
+            >
+              编辑叠加
+            </button>
+            <button
+              type="button"
+              className={`rounded-md px-2 py-1 ${renderMode === 'final-preview' ? 'bg-orange-500 text-white' : 'text-(--platform-text-soft)'}`}
+              aria-pressed={renderMode === 'final-preview'}
+              onClick={() => setRenderMode('final-preview')}
+            >
+              最终预览
+            </button>
+          </div>
+          <span className="text-[10px] text-(--platform-text-soft)">
+            {Object.keys(controller.images).length} 张界面图 ·{' '}
+            {Object.keys(controller.sprites).length} 项素材
+          </span>
+        </div>
       </header>
-      {activeImage && previewUrls[activeImageId ?? ''] && logicalSize ? (
+      {activeImage &&
+      logicalSize &&
+      (renderMode === 'final-preview' || previewUrls[activeImageId ?? '']) ? (
         <div className="relative min-h-0 flex-1">
           <SharedCanvasViewport
             ref={viewportElementRef}
@@ -375,23 +284,37 @@ export function PreviewWorkspace({
                 className="relative"
                 style={{ width: logicalSize.width, height: logicalSize.height }}
               >
-                <img
-                  src={previewUrls[activeImageId ?? '']}
-                  alt={activeImage.metadata.name}
-                  className="absolute inset-0 size-full object-fill shadow-[0_18px_50px_rgb(67_48_37_/_14%)]"
-                  draggable={false}
-                />
-                {tree?.root ? (
-                  <PreviewNode
-                    node={tree.root}
-                    isRoot
-                    selectedNodeId={controller.selectedNodeId}
-                    onSelectNode={controller.selectNode}
-                    onNodePointerDown={handleNodePointerDown}
-                    onNodePointerMove={handleNodePointerMove}
-                    onNodePointerUp={handleNodePointerUp}
+                {renderMode === 'editor-overlay' ? (
+                  <img
+                    src={previewUrls[activeImageId ?? '']}
+                    alt={activeImage.metadata.name}
+                    className="absolute inset-0 size-full object-fill shadow-[0_18px_50px_rgb(67_48_37_/_14%)]"
+                    draggable={false}
                   />
-                ) : null}
+                ) : (
+                  <div
+                    className="absolute inset-0 bg-[#f7f4ef] shadow-[0_18px_50px_rgb(67_48_37_/_14%)]"
+                    aria-label="最终组件预览画布"
+                  />
+                )}
+                <UiTreeRenderer
+                  tree={tree}
+                  renderMode={renderMode}
+                  selectedNodeId={controller.selectedNodeId}
+                  resources={{
+                    previewUrls,
+                    sprites: controller.sprites,
+                    fonts: editor.state.font_assets,
+                  }}
+                  onSelectNode={controller.selectNode}
+                  onNodePointerDown={onNodePointerDown}
+                  onNodePointerMove={onNodePointerMove}
+                  onNodePointerUp={onNodePointerUp}
+                  onNodeResizePointerDown={onNodeResizePointerDown}
+                  onNodeResizePointerMove={onNodeResizePointerMove}
+                  onNodeResizePointerUp={onNodeResizePointerUp}
+                  viewportScale={viewport.scale}
+                />
               </div>
             </CanvasWorld>
           </SharedCanvasViewport>