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 a788cf4c3..7d7c8105f 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
@@ -4236,7 +4236,9 @@ export default function ProjectDevelopmentView({
       if (!category) {
         return;
       }
-      const viewport = resourceCanvasViewportRef.current;
+      const viewport = resourceBookOpensAllResources
+        ? resourceBookAllViewportRef.current
+        : resourceCanvasViewportRef.current;
       const next = zoomResourceBookViewport(viewport, factor, {
         x: anchorX,
         y: anchorY,
@@ -4312,7 +4314,9 @@ export default function ProjectDevelopmentView({
         return;
       }
       const result = resolveResourceBookWheelViewport({
-        viewport: resourceCanvasViewportRef.current,
+        viewport: resourceBookOpensAllResources
+          ? resourceBookAllViewportRef.current
+          : resourceCanvasViewportRef.current,
         deltaX: event.deltaX,
         deltaY: event.deltaY,
         shiftKey: event.shiftKey,
@@ -4422,7 +4426,10 @@ export default function ProjectDevelopmentView({
       ) {
         return;
       }
-      const scale = resourceCanvasViewportRef.current.scale;
+      const scale = (resourceBookOpensAllResources
+        ? resourceBookAllViewportRef.current
+        : resourceCanvasViewportRef.current
+      ).scale;
       if (!Number.isFinite(scale) || scale <= 0) {
         return;
       }
@@ -4580,7 +4587,9 @@ export default function ProjectDevelopmentView({
           category: canvasTarget,
           startClientX: event.clientX,
           startClientY: event.clientY,
-          startViewport: resourceCanvasViewportRef.current,
+          startViewport: resourceBookOpensAllResources
+            ? resourceBookAllViewportRef.current
+            : resourceCanvasViewportRef.current,
         };
         return;
       }
diff --git a/apps/ai-game-creator-shell/tests/appSurface/project-development.suite.ts b/apps/ai-game-creator-shell/tests/appSurface/project-development.suite.ts
index 6be8210f6..6c2581e50 100644
--- a/apps/ai-game-creator-shell/tests/appSurface/project-development.suite.ts
+++ b/apps/ai-game-creator-shell/tests/appSurface/project-development.suite.ts
@@ -9620,6 +9620,23 @@ export function registerProjectAgentStatusTests() {
         ),
       ).not.toBeNull(),
     );
+    // 「所有资源」展开态必须复用自己的内存视口：缩放按钮不能拿当前栏目页的旧 ref，
+    // 否则按钮看起来按了但缩放落点/倍率会回到另一份视口状态。
+    const allSceneWorld = document.querySelector<HTMLElement>(
+      '[data-resource-book-view="child"] .game-resource-book-scene-world',
+    );
+    expect(allSceneWorld).not.toBeNull();
+    const allTransformBeforeZoom = allSceneWorld?.style.transform;
+    fireEvent.click(screen.getByRole('button', { name: '放大画布' }));
+    await waitFor(() =>
+      expect(allSceneWorld?.style.transform).not.toBe(allTransformBeforeZoom),
+    );
+    // 旧实现第二次点击仍可能使用栏目页 ref；连续点击必须继续推进 all 视口。
+    const allTransformAfterZoom = allSceneWorld?.style.transform;
+    fireEvent.click(screen.getByRole('button', { name: '放大画布' }));
+    await waitFor(() =>
+      expect(allSceneWorld?.style.transform).not.toBe(allTransformAfterZoom),
+    );
     // 旧的分组网格宿主与网格容器一个都不该再存在；改回旧分支时这三条会立刻红。
     expect(
       document.querySelector('[data-resource-book-all-host="true"]'),
diff --git a/docs/project-memory/shared-memory/decision-log.md b/docs/project-memory/shared-memory/decision-log.md
index e0d6051f5..c701ced8f 100644
--- a/docs/project-memory/shared-memory/decision-log.md
+++ b/docs/project-memory/shared-memory/decision-log.md
@@ -8478,3 +8478,11 @@ CI 上 `background_agent_runtime_recovers_stale_running_before_pending_task` 在
 - 验证方式：① 单测 `resourceBookLayout.test` 钉住"展开态真实栏目 `titlebar === false`、`all` 为 `true`"，并删掉只服务旧标题栏矩形的断言与那个已不存在的导出；② appSurface 两条「所有资源」用例各加一条反向守卫 `document.querySelectorAll('.game-resource-book-scene-titlebar:not([data-resource-book-category="all"])')` 长度为 0（空项目那条正是用户现场）；③ **变异验证（已实测红灯）**：把展开态真实栏目的 `titlebar` 改回 `true` → 两条守卫同时红，报 `expected … to have a length of +0 but got 7`——这个 `7` 就是七个真实栏目叠在原点的实证。
 - 影响范围：`apps/ai-game-creator-shell/src/view/project-development/{resourceBookLayout.ts,index.tsx}`、`apps/ai-game-creator-shell/tests/{resourceBookLayout.test.ts,appSurface/project-development.suite.ts}`、`docs/technical/【测试用例】AGC资源工作台V3端到端验收-2026-09-11.md`（S7 行措辞）。
 - 关联：本条**收窄**（不推翻）2026-09-11 的「所有资源」页画本场景决策：那一条定的是"同一套场景 + 同一颗 renderCard + 分带偏移"，本条只改"展开态出不出栏目标题栏"。
+
+## 2026-09-12 「所有资源」交互读取独立内存视口：缩放、滚轮、平移不能复用栏目页 ref
+
+- 背景：上一条决策把「所有资源」定义成一张平铺画布，并明确它没有独立持久化空间；因此它仍需要一份只存在内存中的 `resourceBookAllViewport`，不能塞进按真实栏目键的 `resourceCanvasViewports`。
+- 决策：展开态所有需要读取当前子画布视口的动作（按钮缩放、滚轮缩放/平移、卡片拖动的缩放换算、画布平移起点）统一读取 `resourceBookAllViewportRef`；普通栏目页继续读取 `resourceCanvasViewportRef`。写侧继续通过 `setResourceCanvasViewport('all', ...)` 进入 all 内存状态，不增加 sidecar 分区或第二套坐标空间。
+- 原因：如果读侧沿用栏目 ref，动作会基于最近栏目页的旧缩放/平移值计算，再写入 all；数值碰到缩放边界时用户看到的就是「按钮按了但不动」，且拖动距离也会按错误倍率换算。
+- 验证：appSurface 的多栏目「所有资源」用例连续点击两次放大；四处 ref 选择全部变异回旧实现后第二次点击断言红灯，恢复后通过。定向类型检查与 ESLint 均通过。
+- 影响范围：`apps/ai-game-creator-shell/src/view/project-development/index.tsx`、`apps/ai-game-creator-shell/tests/appSurface/project-development.suite.ts`、`pitfalls.md` 本条。
diff --git a/docs/project-memory/shared-memory/pitfalls.md b/docs/project-memory/shared-memory/pitfalls.md
index e1f01182e..01740fb41 100644
--- a/docs/project-memory/shared-memory/pitfalls.md
+++ b/docs/project-memory/shared-memory/pitfalls.md
@@ -5363,3 +5363,11 @@
 - **处理**：让"该不该有这个节点"显式化，而不是靠"矩形取不到就兜底"：`ResourceBookSceneCategoryPlan` 增 `titlebar: boolean`，展开态的真实栏目为 `false`（那一页只留 `all` 一条钉住的标题栏），渲染层按它决定是否产出节点；同时删掉只服务旧形态的 `RESOURCE_BOOK_ALL_BAND_TITLE_HEIGHT` / `resourceBookAllTitlebarRects`。**`?? 0` 兜底本身不是错，错在它同时承担"没有布局信息"和"布局信息恰好是原点"两种语义**——凡是一个坐标有多路来源（测量 / 计算 / 静态），缺某一路时要么显式不渲染，要么让缺路成为可观测的信号，不要静默给默认值。
 - **验证**：appSurface 两条「所有资源」用例加反向守卫 `querySelectorAll('.game-resource-book-scene-titlebar:not([data-resource-book-category="all"])')` 长度为 0（含空项目那条）；变异验证：把展开态真实栏目的 `titlebar` 改回 `true` → 两条同时红，报 `expected … to have a length of +0 but got 7`（7 = 七个真实栏目，实证是"一摞"而不是"一个错位框"）。
 - **关联**：`apps/ai-game-creator-shell/src/view/project-development/{resourceBookLayout.ts,index.tsx}`、`apps/ai-game-creator-shell/tests/{resourceBookLayout.test.ts,appSurface/project-development.suite.ts}`、`decision-log.md` 2026-09-12 条。
+
+## 2026-09-12 「所有资源」缩放拿错视口 ref：按钮能触发但倍率被另一份栏目视口覆盖
+
+- **现象**：「所有资源」展开页点击放大/缩小后看起来不动，或倍率跳回栏目页当前值；滚轮缩放、画布平移和卡片拖动也可能出现同类落点异常。
+- **原因**：展开页的视口是独立的内存态 `resourceBookAllViewportRef`，但缩放/滚轮/拖动起算仍读取普通栏目页的 `resourceCanvasViewportRef`。两份 ref 在首次进入或最近切过栏目后数值可能不同，导致 all 页动作以另一张画布的旧值计算，再写回 all 视口；当旧值已在边界时就表现为「按不动」。
+- **处理**：所有需要读取当前子画布视口的交互都按目标选择 ref：`resourceBookOpensAllResources` 时读取 `resourceBookAllViewportRef`，栏目页才读取 `resourceCanvasViewportRef`；写回仍统一经过 `setResourceCanvasViewport`，不新增持久化空间。
+- **验证**：appSurface 的「所有资源」用例新增连续两次点击放大断言；把四处 all ref 选择变异还原为旧的 `resourceCanvasViewportRef` 后，该用例在第二次点击处红，显示 transform 未变化；恢复后用例通过。
+- **关联**：`apps/ai-game-creator-shell/src/view/project-development/index.tsx`、`apps/ai-game-creator-shell/tests/appSurface/project-development.suite.ts`、`decision-log.md` 2026-09-12 条。