diff --git a/apps/ai-game-creator-shell/src/styles.css b/apps/ai-game-creator-shell/src/styles.css
index 7ea1cc2ab..9103e5587 100644
--- a/apps/ai-game-creator-shell/src/styles.css
+++ b/apps/ai-game-creator-shell/src/styles.css
@@ -5634,18 +5634,14 @@ iframe.preview-frame {
   pointer-events: none;
 }
 
-.game-resource-book-loading {
+.game-resource-book-thumbnail-loading {
   position: absolute;
-  inset: 0;
-  z-index: 40;
+  inset: 42px 0 0;
+  z-index: 3;
   display: flex;
-  flex-direction: column;
   align-items: center;
   justify-content: center;
-  gap: 10px;
-  background: rgb(255 253 250 / 78%);
-  color: #a08073;
-  font-size: 13px;
+  color: #c46a40;
   pointer-events: none;
 }
 
diff --git a/apps/ai-game-creator-shell/src/view/project-development/index.tsx b/apps/ai-game-creator-shell/src/view/project-development/index.tsx
index d24b0fc2b..c470d3fba 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/index.tsx
+++ b/apps/ai-game-creator-shell/src/view/project-development/index.tsx
@@ -912,6 +912,7 @@ function ResourceBookThumbnail({
   resources,
   onOpen,
   registerElement,
+  loading = false,
 }: {
   category: ResourceCategory;
   resources: ProjectResource[];
@@ -920,6 +921,7 @@ function ResourceBookThumbnail({
     category: ResourceCategory,
     element: HTMLElement | null,
   ) => void;
+  loading?: boolean;
 }) {
   const stacks = Array.from(
     resources.reduce((groups, resource) => {
@@ -978,6 +980,15 @@ function ResourceBookThumbnail({
         <span>打开{categoryLabels[category]}</span>
         <span aria-hidden="true">↗</span>
       </span>
+      {loading ? (
+        <span
+          className="game-resource-book-thumbnail-loading"
+          role="status"
+          aria-label="正在加载该栏目资源"
+        >
+          <Loader2 size={18} aria-hidden="true" className="animate-spin" />
+        </span>
+      ) : null}
     </div>
   );
 }
@@ -2191,36 +2202,40 @@ export default function ProjectDevelopmentView({
     sortMode,
     visibleCategoryOrder,
   ]);
-  const resourceBookOverviewReady = useMemo(
-    () =>
-      visibleCategoryOrder.every((category) => {
-        const rect = resourceBookOverviewRects.get(category);
-        return Boolean(rect && rect.width > 0 && rect.height > 0);
-      }),
-    [resourceBookOverviewRects, visibleCategoryOrder],
-  );
-  const resourceBookSettledPreviewCount = useMemo(() => {
-    let settled = 0;
+  // 每个功能画布框内各自判断加载态：该栏目一张预览都没落地时转圈。
+  const resourceBookCategorySettledPreviews = useMemo(() => {
+    const counts = new Map<
+      ResourceCategory,
+      { previewable: number; settled: number }
+    >();
     for (const resource of visibleResources) {
+      const kind = projectResourceCardPreviewKind(resource);
+      // 版本、占位和音频卡片本来就不请求卡片预览，不能计入加载等待。
+      if (kind === 'version' || kind === 'placeholder' || kind === 'audio') {
+        continue;
+      }
+      const entry = counts.get(resource.category) ?? {
+        previewable: 0,
+        settled: 0,
+      };
+      entry.previewable += 1;
       const identity = resourceCardPreviews.identityByResourceId.get(
         resource.id,
       );
-      if (!identity) continue;
-      const status = resourceCardPreviews.previews.get(identity)?.status;
-      if (status === 'loaded' || status === 'failed') settled += 1;
+      const status = identity
+        ? resourceCardPreviews.previews.get(identity)?.status
+        : undefined;
+      if (status === 'loaded' || status === 'failed') {
+        entry.settled += 1;
+      }
+      counts.set(resource.category, entry);
     }
-    return settled;
+    return counts;
   }, [
     resourceCardPreviews.identityByResourceId,
     resourceCardPreviews.previews,
     visibleResources,
   ]);
-  const resourceBookLoading = resourceBookIsLoading({
-    resourceCount: visibleResources.length,
-    overviewReady: resourceBookOverviewReady,
-    cardsReady: sortMode !== 'dependency' || resourceGraphInitializationReady,
-    settledPreviewCount: resourceBookSettledPreviewCount,
-  });
   const setResourceCanvasViewport = useCallback(
     (
       category: ResourceCategory,
@@ -5622,20 +5637,6 @@ export default function ProjectDevelopmentView({
                   onWheel={handleResourceBookWheel}
                 />
                 <ResourceBookTransitionLayer />
-                {resourceBookLoading ? (
-                  <div
-                    className="game-resource-book-loading"
-                    role="status"
-                    aria-live="polite"
-                  >
-                    <Loader2
-                      size={22}
-                      aria-hidden="true"
-                      className="animate-spin"
-                    />
-                    <span>正在加载资源画布…</span>
-                  </div>
-                ) : null}
                 <div className="game-resource-book-zoom">
                   <button
                     type="button"
@@ -5778,6 +5779,15 @@ export default function ProjectDevelopmentView({
                           }
                           onOpen={openResourceBookChild}
                           registerElement={registerResourceBookThumbnail}
+                          loading={resourceBookIsLoading({
+                            resourceCount:
+                              resourceBookCategorySettledPreviews.get(category)
+                                ?.previewable ?? 0,
+                            settledPreviewCount:
+                              resourceBookCategorySettledPreviews.get(
+                                category,
+                              )?.settled ?? 0,
+                          })}
                         />
                       ))}
                     </div>
diff --git a/apps/ai-game-creator-shell/src/view/project-development/resourceBookModel.ts b/apps/ai-game-creator-shell/src/view/project-development/resourceBookModel.ts
index ed5af0d13..626e1edaa 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/resourceBookModel.ts
+++ b/apps/ai-game-creator-shell/src/view/project-development/resourceBookModel.ts
@@ -80,22 +80,15 @@ export function resourceBookShowsChildCards(state: ResourceBookState) {
 }
 
 /**
- * 进入资源画布时，卡片布局与首屏预览都要等一会儿，这段时间画布是空的。
- * 只要还有资源、但布局未就绪或首屏预览一个都没落地，就显示加载态。
- * 预览失败也算落地，避免一直转圈。
+ * 每个功能画布框内各自显示加载态：该栏目还有资源、但一张预览都没落地时转圈。
+ * 预览失败同样算落地，避免一直转圈；加载态不拦截点击，没加载出来也能进栏目。
  */
 export function resourceBookIsLoading({
   resourceCount,
-  overviewReady,
-  cardsReady,
   settledPreviewCount,
 }: {
   resourceCount: number;
-  overviewReady: boolean;
-  cardsReady: boolean;
   settledPreviewCount: number;
 }) {
-  if (resourceCount <= 0) return false;
-  if (!cardsReady || !overviewReady) return true;
-  return settledPreviewCount <= 0;
+  return resourceCount > 0 && settledPreviewCount <= 0;
 }
diff --git a/apps/ai-game-creator-shell/tests/resourceBookModel.test.ts b/apps/ai-game-creator-shell/tests/resourceBookModel.test.ts
index d688ff60d..76563aa0e 100644
--- a/apps/ai-game-creator-shell/tests/resourceBookModel.test.ts
+++ b/apps/ai-game-creator-shell/tests/resourceBookModel.test.ts
@@ -106,28 +106,21 @@ describe('resource book state machine', () => {
 });
 
 describe('resource book loading state', () => {
-  const ready = {
-    resourceCount: 3,
-    overviewReady: true,
-    cardsReady: true,
-    settledPreviewCount: 1,
-  };
-
-  it('never blocks an empty project', () => {
-    expect(resourceBookIsLoading({ ...ready, resourceCount: 0 })).toBe(false);
+  it('never spins for an empty section', () => {
+    expect(
+      resourceBookIsLoading({ resourceCount: 0, settledPreviewCount: 0 }),
+    ).toBe(false);
   });
 
-  it('loads while the layout or first preview is still pending', () => {
-    expect(resourceBookIsLoading({ ...ready, cardsReady: false })).toBe(true);
-    expect(resourceBookIsLoading({ ...ready, overviewReady: false })).toBe(
-      true,
-    );
-    expect(resourceBookIsLoading({ ...ready, settledPreviewCount: 0 })).toBe(
-      true,
-    );
+  it('spins while a section still has no settled preview', () => {
+    expect(
+      resourceBookIsLoading({ resourceCount: 3, settledPreviewCount: 0 }),
+    ).toBe(true);
   });
 
-  it('stops once a first preview settles', () => {
-    expect(resourceBookIsLoading(ready)).toBe(false);
+  it('stops as soon as one preview in that section settles', () => {
+    expect(
+      resourceBookIsLoading({ resourceCount: 3, settledPreviewCount: 1 }),
+    ).toBe(false);
   });
 });