diff --git a/apps/ai-game-creator-shell/src/styles.css b/apps/ai-game-creator-shell/src/styles.css
index e0e6d2bea..a607f465c 100644
--- a/apps/ai-game-creator-shell/src/styles.css
+++ b/apps/ai-game-creator-shell/src/styles.css
@@ -5640,13 +5640,6 @@ iframe.preview-frame {
   flex-direction: column;
   flex: 1 1 auto;
   min-height: 0;
-  /*
-   * 顶部工具条带（搜索框、筛选条、状态提示）在流内占一条独立排布带，
-   * `--game-resource-book-tools-height` 由实测高度写入。铺满管理区的画本场景按同一
-   * 变量把自己缩到这条带下面，栏目标题栏与栏目大纲就不会和搜索框落在同一条排布带上
-   * （分页态与总览态都适用）。
-   */
-  padding-top: var(--game-resource-book-tools-height, 0px);
 }
 
 .game-resource-book-manager {
@@ -5658,8 +5651,8 @@ iframe.preview-frame {
 .game-resource-book-scene {
   position: absolute;
   z-index: 20;
-  /* 顶边让出工具条带：栏目标题栏与栏目大纲整体下移，不与搜索框争同一条排布带。 */
-  inset: var(--game-resource-book-tools-height, 0px) 0 0;
+  /* 铺满管理区：栏目标题栏、栏目大纲与资源卡都从管理区顶边开始正常占位。 */
+  inset: 0;
   overflow: hidden;
   pointer-events: none;
   transition: none;
@@ -6166,35 +6159,26 @@ iframe.preview-frame {
 }
 
 /*
- * 工具条带：搜索框、筛选条与状态提示在这里按独立排布行排列，画本场景从这条带下面
- * 开始（见 `.game-resource-manager` 的 padding-top）。工具条里的浮层元素仍高于场景
- * （z-index 40 > 场景的 20），工具条内容溢出时不会被画本盖住。
+ * 资源搜索浮层。
+ *
+ * 搜索条不再常驻：原来它和筛选条一起在管理区顶部占一条独立排布带（管理区 padding-top
+ * 加画本场景下移），栏目标题栏被挤到那条带下面仍然和搜索框叠在同一条水平带上。现在常态
+ * 只有右下角 Dock 里的搜索按钮，Ctrl/Cmd+F（macOS 为 Cmd+F）或点按钮才把浮层叫出来，
+ * Esc / 点外部收起（口径见 `useImageCanvasFloatingOptionDismiss`）。
+ *
+ * 浮层贴着右下角 Dock 向上展开：`bottom: 58px` = Dock 的 `bottom: 14px` + Dock 高度
+ * `34px` + 10px 间隙，所以它永远不会落到栏目标题栏（管理区顶边 min-height 42px）那条带上。
+ * `z-index: 40` 高于画本场景的 20，浮在资源卡与栏目标题栏之上。
  */
-.game-resource-book-tools {
-  position: absolute;
-  top: 0;
-  right: 0;
-  left: 0;
-  z-index: 40;
-  display: flex;
-  flex-direction: column;
-  gap: 8px;
-  padding: 10px 12px 4px;
-}
-
-.game-resource-book-tools > * {
-  margin: 0;
-  width: 100%;
-}
-
 .game-resource-search {
-  position: relative;
+  position: absolute;
+  right: 14px;
+  bottom: 58px;
   z-index: 40;
   display: flex;
   align-items: center;
   gap: 8px;
-  align-self: center;
-  width: min(300px, 100%);
+  width: min(320px, calc(100% - 28px));
   padding: 0 10px;
   border: 1px solid #ecdcd4;
   border-radius: 10px;
@@ -6203,6 +6187,15 @@ iframe.preview-frame {
   color: #a08073;
 }
 
+/*
+ * 搜索条件生效时（浮层收起也生效）Dock 上的搜索按钮保持高亮：筛选条件不会随浮层一起
+ * 消失，按钮必须能看出"当前有搜索"，否则用户会以为资源丢了。复用 Dock 按钮的 hover 色。
+ */
+.game-resource-book-zoom-button.is-active {
+  background: #f7ebe4;
+  color: #b5582f;
+}
+
 .game-resource-search input {
   width: 100%;
   min-width: 0;
@@ -6215,6 +6208,35 @@ iframe.preview-frame {
   font-size: 12px;
 }
 
+/*
+ * 浮层提示（工作台状态提示、附件导入失败）：不再占管理区顶部的排布带高度，改成绝对
+ * 定位的浮层，落在栏目标题栏（管理区顶边 min-height 42px）下面 16px 处居中。
+ *
+ * 容器整体 `pointer-events: none`，只有提示条自己恢复 `pointer-events: auto`：这条横跨
+ * 管理区的空盒子如果接收点击，就会把「资源总览」这类按钮的命中区域吃掉——那正是
+ * "回到资源总览点不动"的成因，所以命中的门槛只留在提示条自己的盒子上。
+ */
+.game-resource-book-notices {
+  position: absolute;
+  top: 58px;
+  left: 50%;
+  z-index: 40;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 8px;
+  width: max-content;
+  max-width: min(420px, calc(100% - 28px));
+  transform: translateX(-50%);
+  pointer-events: none;
+}
+
+.game-resource-book-notices > * {
+  width: auto;
+  max-width: 100%;
+  pointer-events: auto;
+}
+
 .game-resource-classification-dialog {
   width: min(480px, 100%);
 }
@@ -6294,7 +6316,7 @@ iframe.preview-frame {
   align-items: center;
   justify-content: space-between;
   gap: 10px;
-  margin: 8px 12px 0;
+  margin: 0;
   padding: 8px 10px;
   border: 1px solid #edc7b5;
   border-radius: 10px;
@@ -6314,7 +6336,7 @@ iframe.preview-frame {
 .game-attachment-errors {
   display: grid;
   gap: 4px;
-  margin: 8px 12px 0;
+  margin: 0;
   padding: 8px 10px;
   border: 1px solid #edc1ad;
   border-radius: 10px;
@@ -8878,16 +8900,6 @@ iframe.preview-frame {
   font-size: 12px;
 }
 
-/*
- * 窄屏（移动端优先）：筛选条与标签开始换行时，搜索框改为整行独占，
- * 工具条带变高后画本场景按实测高度继续下移，任何宽度下都不与标题栏重叠。
- */
-@media (max-width: 560px) {
-  .game-resource-search {
-    width: 100%;
-  }
-}
-
 @media (max-width: 620px) {
   .game-resource-recovery-item,
   .game-resource-recovery-error {
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 8967dd75c..f2a81d7d8 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
@@ -406,21 +406,6 @@ function resourceCanvasElementSize(element: HTMLElement | null) {
   };
 }
 
-/**
- * 资源工具条（搜索框、筛选条、状态提示）在管理区顶部占一条独立排布带，画本场景的盒子
- * 从这条带下面开始。按视口排布资源时要减掉这条带，否则"适应内容"仍按旧的
- * "场景一直顶到管理区顶端"居中，把卡片排到工具条底下。
- */
-function resourceCanvasSceneSize(
-  size: { width: number; height: number },
-  chromeHeight: number,
-) {
-  return {
-    width: size.width,
-    height: Math.max(0, size.height - Math.max(0, chromeHeight)),
-  };
-}
-
 function resourceCanvasViewportsEqual(
   left: CanvasViewport,
   right: CanvasViewport,
@@ -1222,11 +1207,6 @@ export default function ProjectDevelopmentView({
       createResourceBookTransitionController(),
     );
   const resourceBookManagerRef = useRef<HTMLDivElement>(null);
-  /**
-   * 工具条带的第一条流式元素（搜索框）。工具条带本身没有独立包裹节点，命中它就能把
-   * "第一条流式元素顶边到管理区顶边"的高度算出来，正好是画本场景要让出的那条带。
-   */
-  const resourceBookToolsRef = useRef<HTMLLabelElement>(null);
   const resourceBookPlanKeysRef = useRef(
     new Map<string, ResourceBookSceneCardPlan>(),
   );
@@ -1240,17 +1220,14 @@ export default function ProjectDevelopmentView({
     width: 900,
     height: 640,
   });
-  const [resourceBookToolsHeight, setResourceBookToolsHeight] = useState(0);
-  /**
-   * 场景局部的可排布尺寸：管理区盒子减掉顶部工具条带。视口居中与"适应内容"都按它算。
-   */
-  const sceneFitCanvasSize = useMemo(
-    () =>
-      resourceCanvasSceneSize(resourceBookSceneSize, resourceBookToolsHeight),
-    [resourceBookSceneSize, resourceBookToolsHeight],
-  );
   const [sortMode, setSortMode] = useState<ResourceSortMode>('dependency');
   const [searchText, setSearchText] = useState('');
+  /**
+   * 搜索浮层的开合。搜索条不再常驻：常态只留右下角 Dock 里的搜索按钮与
+   * Ctrl/Cmd+F（见下方两处效果），浮层收起不清 `searchText`，筛选条件继续生效。
+   */
+  const [resourceSearchOpen, setResourceSearchOpen] = useState(false);
+  const resourceSearchId = useId();
   const [resourceCanvasViewports, setResourceCanvasViewports] =
     useState<ResourceCanvasViewportBySortMode>(defaultResourceCanvasViewports);
   const resourceCanvasViewportTargetsRef = useRef(
@@ -1374,6 +1351,9 @@ export default function ProjectDevelopmentView({
   const skipNextResourceCardClickRef = useRef<string | null>(null);
   const skipNextResourceCardClickTimerRef = useRef<number | null>(null);
   const resourceSearchRef = useRef<HTMLInputElement>(null);
+  /** 右下角 Dock 里的搜索按钮：开合搜索浮层，也是浮层「点外部 / Esc」边界的一半。 */
+  const resourceSearchTriggerRef = useRef<HTMLButtonElement>(null);
+  const resourceSearchPopoverRef = useRef<HTMLLabelElement>(null);
   const resourceFocusProjectPathRef = useRef(projectPath);
   /** 框选命中测试用的资源卡图层与当前画本视口，渲染期同步赋值。 */
   const marqueeHitTestLayersRef = useRef<CanvasLayer[]>([]);
@@ -2041,16 +2021,13 @@ export default function ProjectDevelopmentView({
       return;
     }
     const managerRect = manager.getBoundingClientRect();
-    // 画本场景是管理区内缩掉顶部工具条带之后的盒子；总览栏目矩形与场景世界都按它定位。
-    const sceneRect =
-      manager
-        .querySelector<HTMLElement>('.game-resource-book-scene')
-        ?.getBoundingClientRect() ?? managerRect;
+    // 画本场景铺满管理区（`inset: 0`，顶部不再有工具条带）：管理区盒子就是场景盒子，
+    // 总览栏目矩形与场景世界都按同一个原点定位。
     setResourceBookSceneSize((current) =>
-      Math.abs(current.width - sceneRect.width) < 0.5 &&
-      Math.abs(current.height - sceneRect.height) < 0.5
+      Math.abs(current.width - managerRect.width) < 0.5 &&
+      Math.abs(current.height - managerRect.height) < 0.5
         ? current
-        : { width: sceneRect.width, height: sceneRect.height },
+        : { width: managerRect.width, height: managerRect.height },
     );
     const next = new Map<ResourceCategory, ResourceBookOverviewRect>();
     resourceBookThumbnailElementsRef.current.forEach((element, category) => {
@@ -2112,28 +2089,59 @@ export default function ProjectDevelopmentView({
     };
   }, [measureResourceBookOverview, resourceBookView, canvasResources.length]);
 
-  useLayoutEffect(() => {
-    const tools = resourceBookToolsRef.current;
-    if (!tools) {
+  /**
+   * 搜索浮层的「点外部 / Esc 关闭」。
+   *
+   * 直接复用美术画布的 `useImageCanvasFloatingOptionDismiss`，不另写判据：它在
+   * document 上同时接管 click 与 Escape，点在边界外即关、点在边界内保留；Escape 走
+   * 同一口径在 document 上截断，画布全局的 Esc（清选中）不会跟着一起触发。
+   * 边界是浮层自己与右下角那颗搜索按钮：点按钮只走按钮自己的开合，不会先被判定成外部。
+   */
+  useImageCanvasFloatingOptionDismiss({
+    isOpen: resourceSearchOpen && mode === 'resources' && !uiEditorRoute,
+    boundaryRefs: [resourceSearchPopoverRef, resourceSearchTriggerRef],
+    onDismiss: () => setResourceSearchOpen(false),
+  });
+
+  /**
+   * Ctrl/Cmd+F 叫出搜索浮层。
+   *
+   * 搜索条不再常驻占管理区顶部那条排布带（那条带与栏目标题栏争同一条水平带），改成
+   * 快捷键 + 右下角小按钮临时叫出。关闭不清 `searchText`：筛选条件与「清除搜索并定位」
+   * 的语义与常驻搜索条时期一致。
+   */
+  useEffect(() => {
+    if (mode !== 'resources' || uiEditorRoute) {
       return undefined;
     }
-    const measureTools = () => {
-      const height = tools.offsetTop + tools.offsetHeight;
-      setResourceBookToolsHeight((current) =>
-        Math.abs(current - height) < 0.5 ? current : height,
-      );
+    const handleResourceSearchShortcut = (event: KeyboardEvent) => {
+      if (
+        event.key.toLowerCase() !== 'f' ||
+        !(event.ctrlKey || event.metaKey) ||
+        event.altKey ||
+        event.shiftKey
+      ) {
+        return;
+      }
+      event.preventDefault();
+      setResourceSearchOpen(true);
     };
-    measureTools();
-    if (typeof ResizeObserver === 'undefined') {
-      window.addEventListener('resize', measureTools);
-      return () => window.removeEventListener('resize', measureTools);
+    window.addEventListener('keydown', handleResourceSearchShortcut);
+    return () =>
+      window.removeEventListener('keydown', handleResourceSearchShortcut);
+  }, [mode, uiEditorRoute]);
+
+  /**
+   * 浮层打开后焦点落到搜索框：PRD「聚焦资源被删除时焦点落到资源搜索框」的落点入口，
+   * `resourceSearchRef` 由此不再是死 ref。
+   */
+  useEffect(() => {
+    if (!resourceSearchOpen) {
+      return;
     }
-    // 工具条会随窗口宽度换行（窄屏下搜索框与筛选条各占一行），高度必须实测：
-    // 场景盒子按它下移，两者才不会落在同一条排布带上。
-    const observer = new ResizeObserver(measureTools);
-    observer.observe(tools);
-    return () => observer.disconnect();
-  }, [mode, resourceBookView, searchText]);
+    resourceSearchRef.current?.focus();
+  }, [resourceSearchOpen]);
+
   const viewedResourceCategory =
     mode === 'resources' ? activePageCategory : null;
   useEffect(() => {
@@ -2310,8 +2318,8 @@ export default function ProjectDevelopmentView({
   // 返回总览时也不会跳成另一张图。
   const resourceBookCategoryViewCenters = useMemo(() => {
     const canvasSize =
-      sceneFitCanvasSize.width > 0 && sceneFitCanvasSize.height > 0
-        ? sceneFitCanvasSize
+      resourceBookSceneSize.width > 0 && resourceBookSceneSize.height > 0
+        ? resourceBookSceneSize
         : {
             width: RESOURCE_CANVAS_FALLBACK_WIDTH,
             height: RESOURCE_CANVAS_FALLBACK_HEIGHT,
@@ -2330,7 +2338,7 @@ export default function ProjectDevelopmentView({
         ] as const;
       }),
     );
-  }, [sceneFitCanvasSize, resourceCanvasViewports, sortMode]);
+  }, [resourceBookSceneSize, resourceCanvasViewports, sortMode]);
   const setResourceCanvasViewport = useCallback(
     (
       category: ResourceCategory,
@@ -2823,14 +2831,14 @@ export default function ProjectDevelopmentView({
 
       const categoryFitKey = `${projectPath}\n${manifest.projectId}\n${sortMode}\n${category}`;
       const fitCanvasSize =
-        sceneFitCanvasSize.width > 0 && sceneFitCanvasSize.height > 0
-          ? sceneFitCanvasSize
+        resourceBookSceneSize.width > 0 && resourceBookSceneSize.height > 0
+          ? resourceBookSceneSize
           : {
               width: RESOURCE_CANVAS_FALLBACK_WIDTH,
               height: RESOURCE_CANVAS_FALLBACK_HEIGHT,
             };
       const fitMaxScale =
-        sceneFitCanvasSize.width > 0 && sceneFitCanvasSize.height > 0
+        resourceBookSceneSize.width > 0 && resourceBookSceneSize.height > 0
           ? RESOURCE_CANVAS_BOOK_FIT_MAX_SCALE
           : 1;
       const categoryBounds = resourceCanvasContentBounds(
@@ -2875,7 +2883,7 @@ export default function ProjectDevelopmentView({
       // sort/category pair. Mark that fit as settled so the paged-canvas
       // layout effect does not immediately recalculate it from a shared DOM
       // measurement and overwrite the stored per-category viewport.
-      if (sceneFitCanvasSize.width > 0 && sceneFitCanvasSize.height > 0) {
+      if (resourceBookSceneSize.width > 0 && resourceBookSceneSize.height > 0) {
         resourceCanvasFitKeysRef.current.add(categoryFitKey);
       }
 
@@ -2888,7 +2896,7 @@ export default function ProjectDevelopmentView({
       manifest.projectId,
       projectPath,
       resourceBookState,
-      sceneFitCanvasSize,
+      resourceBookSceneSize,
       resourceCardSizeByResourceId,
       resourcePositionsByCategory,
       setResourceCanvasViewport,
@@ -3833,14 +3841,14 @@ export default function ProjectDevelopmentView({
       activePageCategory,
       fitResourceCanvasViewportToContent({
         bounds: resourceCanvasFitBounds,
-        canvasSize: sceneFitCanvasSize,
+        canvasSize: resourceBookSceneSize,
         padding: RESOURCE_CANVAS_FIT_PADDING,
         maxScale: RESOURCE_CANVAS_BOOK_FIT_MAX_SCALE,
       }),
     );
   }, [
     activePageCategory,
-    sceneFitCanvasSize,
+    resourceBookSceneSize,
     resourceBookView,
     resourceCanvasFitBounds,
     setResourceCanvasViewport,
@@ -3852,8 +3860,8 @@ export default function ProjectDevelopmentView({
       const sceneElement = resourceBookManagerRef.current;
       const rect = sceneElement?.getBoundingClientRect();
       const anchorX = rect ? rect.width / 2 : 0;
-      // 锚点取真正看得见的画本区域中心：顶部工具条带不算画布。
-      const anchorY = rect ? (rect.height - resourceBookToolsHeight) / 2 : 0;
+      // 画本场景就是管理区盒子（顶部不再有工具条带），锚点取盒子中心即可。
+      const anchorY = rect ? rect.height / 2 : 0;
       if (resourceBookView === 'main') {
         const viewport = resourceBookMainViewportRef.current;
         const next = zoomResourceBookViewport(viewport, factor, {
@@ -3877,12 +3885,7 @@ export default function ProjectDevelopmentView({
       if (next.scale === viewport.scale) return;
       setResourceCanvasViewport(category, next);
     },
-    [
-      activePageCategory,
-      resourceBookToolsHeight,
-      resourceBookView,
-      setResourceCanvasViewport,
-    ],
+    [activePageCategory, resourceBookView, setResourceCanvasViewport],
   );
 
   useLayoutEffect(() => {
@@ -3918,10 +3921,9 @@ export default function ProjectDevelopmentView({
       }
       event.preventDefault();
       const rect = sceneElement.getBoundingClientRect();
-      // 工具条带里没有画布，滚轮锚点先减掉它，缩放才不会以被盖住的区域为中心。
       const screenPoint = {
         x: event.clientX - rect.left,
-        y: event.clientY - rect.top - resourceBookToolsHeight,
+        y: event.clientY - rect.top,
       };
       if (resourceBookView === 'main') {
         const current = resourceBookMainViewportRef.current;
@@ -3953,12 +3955,7 @@ export default function ProjectDevelopmentView({
       });
       setResourceCanvasViewport(category, result.viewport, true);
     },
-    [
-      activePageCategory,
-      resourceBookToolsHeight,
-      resourceBookView,
-      setResourceCanvasViewport,
-    ],
+    [activePageCategory, resourceBookView, setResourceCanvasViewport],
   );
 
   useEffect(() => {
@@ -5742,19 +5739,39 @@ export default function ProjectDevelopmentView({
                   >
                     <Maximize2 size={16} aria-hidden="true" />
                   </button>
+                  <button
+                    ref={resourceSearchTriggerRef}
+                    type="button"
+                    className={`game-resource-book-zoom-button${searchText ? ' is-active' : ''}`}
+                    aria-label="搜索资源"
+                    title="搜索资源（Ctrl/Cmd+F）"
+                    aria-expanded={resourceSearchOpen}
+                    aria-controls={resourceSearchId}
+                    onClick={() => setResourceSearchOpen((current) => !current)}
+                  >
+                    <Search size={16} aria-hidden="true" />
+                  </button>
                 </div>
-                <div className="game-resource-book-tools">
+                {resourceSearchOpen ? (
                   <label
-                    ref={resourceBookToolsRef}
+                    ref={resourceSearchPopoverRef}
                     className="game-resource-search"
                   >
                     <Search size={16} aria-hidden="true" />
                     <input
                       ref={resourceSearchRef}
+                      id={resourceSearchId}
                       type="search"
                       aria-label="搜索项目资源"
                       value={searchText}
                       placeholder="搜索资源名称、路径或类型"
+                      onKeyDown={(event) => {
+                        // type=search 的原生行为是 Esc 清空输入框；这里只让浮层收起，
+                        // 搜索条件本身不因为按了 Esc 被清掉（关闭不等于清除搜索）。
+                        if (event.key === 'Escape') {
+                          event.preventDefault();
+                        }
+                      }}
                       onChange={(event) => {
                         advanceFocusGeneration();
                         setSearchText(event.currentTarget.value);
@@ -5762,6 +5779,8 @@ export default function ProjectDevelopmentView({
                       }}
                     />
                   </label>
+                ) : null}
+                <div className="game-resource-book-notices">
                   {resourceWorkbenchNotice ? (
                     <div className="game-resource-live-notice" role="status">
                       <span>{resourceWorkbenchNotice}</span>
diff --git a/apps/ai-game-creator-shell/tests/appSurface/harness.ts b/apps/ai-game-creator-shell/tests/appSurface/harness.ts
index c36c6330f..f195e3075 100644
--- a/apps/ai-game-creator-shell/tests/appSurface/harness.ts
+++ b/apps/ai-game-creator-shell/tests/appSurface/harness.ts
@@ -365,6 +365,18 @@ function queryResourceSelectButton(label: string) {
   });
 }
 
+/**
+ * 叫出资源搜索浮层并返回搜索框。
+ *
+ * 搜索条改成「临时叫出」的浮层之后，输入框只在浮层打开时存在于 DOM：用例必须走产品
+ * 入口（右下角 Dock 的搜索按钮）打开它。`getByLabelText` 在浮层没打开时会直接抛错，
+ * 所以「搜索框在真实 UI 里点不到」那类假绿不会再出现。
+ */
+function openResourceSearch() {
+  fireEvent.click(screen.getByRole('button', { name: '搜索资源' }));
+  return screen.getByLabelText('搜索项目资源') as HTMLInputElement;
+}
+
 function emptyProjectPolicy() {
   return {
     path: '.agent/policy.json',
@@ -1302,6 +1314,7 @@ export {
   mockRoleAgentReply,
   nativeClipboardMock,
   openMainProject,
+  openResourceSearch,
   pickProjectFromLauncher,
   ProjectDevelopmentView,
   projectSupervisorResponseStream,
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 f9dfe1770..04da6b4d8 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
@@ -32,6 +32,7 @@ import {
   getResourceSelectButton,
   it,
   mockRoleAgentReply,
+  openResourceSearch,
   pickProjectFromLauncher,
   ProjectDevelopmentView,
   projectSupervisorResponseStream,
@@ -1145,7 +1146,7 @@ export function registerProjectWorkbenchFoundationTests() {
       ).toHaveLength(5),
     );
 
-    fireEvent.change(screen.getByLabelText('搜索项目资源'), {
+    fireEvent.change(openResourceSearch(), {
       target: { value: 'overview-art-4' },
     });
     fireEvent.click(screen.getByRole('button', { name: '收起资源' }));
@@ -1158,7 +1159,7 @@ export function registerProjectWorkbenchFoundationTests() {
     );
   });
 
-  it('keeps the resource search box above the resource book scene in both views', () => {
+  it('keeps the resource search as a transient overlay that never lands on the titlebar band', () => {
     const styles = readFileSync(
       resolve(process.cwd(), 'apps/ai-game-creator-shell/src/styles.css'),
       'utf8',
@@ -1170,7 +1171,7 @@ export function registerProjectWorkbenchFoundationTests() {
       ),
       'utf8',
     );
-    // 卡片（z-index 25）与栏目标题栏（30）都画在铺满资源区的场景里：工具条必须比场景更高，
+    // 卡片（z-index 25）与栏目标题栏（30）都画在铺满资源区的场景里：搜索浮层必须比场景更高，
     // 否则放开 display 也只是"画了但看不见、点不到"。
     const sceneZIndex = styleNumber(
       styleRuleBody(styles, '\\.game-resource-book-scene'),
@@ -1181,7 +1182,7 @@ export function registerProjectWorkbenchFoundationTests() {
     const search = styleRuleBody(styles, '\\.game-resource-search');
     expect(search).not.toMatch(/display:\s*none/u);
     expect(search).toMatch(/display:\s*flex/u);
-    expect(search).toMatch(/position:\s*relative/u);
+    expect(search).toMatch(/position:\s*absolute/u);
     expect(styleNumber(search, 'z-index')).toBeGreaterThan(sceneZIndex);
 
     // 「清除搜索并定位」只在搜索把刚提交的资源挡掉时出现，它所在的提示条同样要在场景之上。
@@ -1189,47 +1190,57 @@ export function registerProjectWorkbenchFoundationTests() {
     expect(notice).toMatch(/position:\s*relative/u);
     expect(styleNumber(notice, 'z-index')).toBeGreaterThan(sceneZIndex);
 
-    // 但"在场景之上"只是不被盖住，不等于两者不重叠：上一版把搜索框常态居中浮在画本顶上，
-    // 分页态栏目标题栏正好被压在同一水平带上。所以还要钉住"工具条带独占顶部那条带"。
-    //
-    // 不重叠由两条声明级约定保证，缺一条就会退回重叠：
-    //   1. 管理区按实测的工具条带高度留出 padding-top；
-    //   2. 画本场景把自己的顶边按同一个变量下移。
-    // 两条都指向 `--game-resource-book-tools-height`，所以断言两边用的是同一个变量，
-    // 而不是各写各的数字（写死数字时任何一处改动都会重新压住搜索框）。
-    const toolsHeightVariable = '--game-resource-book-tools-height';
-    // 选择器前缀加行首断言：`.game-workbench-stage > .game-resource-manager` 这种
-    // 后代选择器里也含同名类，不加断言会取到那条只有 grid-row 的规则。
-    const manager = styleRuleBody(styles, '(?:^|\\n)\\.game-resource-manager');
-    expect(manager).toMatch(
-      new RegExp(`padding-top:\\s*var\\(${toolsHeightVariable}`, 'u'),
+    // 常驻搜索条连同它占的那条排布带一起撤掉：管理区不再为工具条留 padding-top，
+    // 画本场景重新铺满管理区盒子——栏目标题栏回到管理区顶边正常占位。
+    expect(styles).not.toContain('--game-resource-book-tools-height');
+    expect(styles).not.toContain('game-resource-book-tools');
+    expect(tsxSource).not.toContain('game-resource-book-tools');
+    expect(
+      styleRuleBody(styles, '(?:^|\\n)\\.game-resource-manager'),
+    ).not.toMatch(/padding-top/u);
+    expect(styleRuleBody(styles, '\\.game-resource-book-scene')).toMatch(
+      /inset:\s*0;/u,
     );
 
-    const scene = styleRuleBody(styles, '\\.game-resource-book-scene');
-    expect(scene).toMatch(
-      new RegExp(`inset:\\s*var\\(${toolsHeightVariable}`, 'u'),
+    // 搜索浮层贴着右下角 Dock 向上展开：浮层底边 = Dock 底边 + Dock 高度 + 间隙。
+    // 两个数字都读自声明，任何一处改小都会让浮层压到 Dock 或下滑到标题栏那条带上。
+    const dock = styleRuleBody(styles, '\\.game-resource-book-zoom');
+    const dockBottom = styleNumber(dock, 'bottom');
+    const dockHeight = styleNumber(dock, 'height');
+    expect(dockBottom).toBeGreaterThan(0);
+    expect(dockHeight).toBeGreaterThan(0);
+    expect(styleNumber(search, 'bottom')).toBeGreaterThanOrEqual(
+      dockBottom + dockHeight,
     );
-    // 场景只让出顶边：宽度与底边必须仍是 0，否则画本区域会缩成一条缝。
-    expect(scene).toMatch(/inset:\s*var\([^)]*\)\s+0\s+0;/u);
-
-    // 工具条带是绝对定位的独立排布行，不是流内浮层；搜索框按整行宽度算，
-    // 不与任何栏目标题栏共享同一水平带（分页态标题栏 z-index 30 < 工具条带 40）。
-    const tools = styleRuleBody(styles, '\\.game-resource-book-tools');
-    expect(tools).toMatch(/position:\s*absolute/u);
-    expect(styleNumber(tools, 'top')).toBe(0);
+    // 浮层右边缘与 Dock 右边缘对齐。
+    expect(styleNumber(search, 'right')).toBe(styleNumber(dock, 'right'));
+    // 浮层只按底边 + 右边锚定：一旦补上 top，它会重新浮回管理区顶部那条标题栏带上。
+    expect(search).not.toMatch(/(?:^|[;\s])top:/u);
     const titlebar = styleRuleBody(
       styles,
       '\\.game-resource-book-scene-titlebar',
     );
-    expect(styleNumber(titlebar, 'z-index')).toBeLessThan(
-      styleNumber(tools, 'z-index'),
+    const titlebarHeight = styleNumber(titlebar, 'min-height');
+    expect(titlebarHeight).toBeGreaterThan(0);
+
+    // 结构上搜索框只在浮层打开时渲染，而且挂在管理区下（与画本场景并列），不是常驻节点。
+    const searchTag = tsxSource.indexOf('className="game-resource-search"');
+    expect(searchTag).toBeGreaterThan(-1);
+    expect(tsxSource).toMatch(
+      /\{resourceSearchOpen \? \(\s*<label\s+ref=\{resourceSearchPopoverRef\}\s+className="game-resource-search"/s,
     );
 
-    // 结构上搜索框必须待在工具条带里：离开这条带就又会浮回画本顶部。
-    const toolsTag = tsxSource.indexOf('game-resource-book-tools');
-    const searchTag = tsxSource.indexOf('game-resource-search');
-    expect(toolsTag).toBeGreaterThan(-1);
-    expect(searchTag).toBeGreaterThan(toolsTag);
+    // 浮层提示层是绝对定位的浮层，容器不吃点击：否则这条横跨管理区的空盒子会把
+    // 「资源总览」（回到资源总览）这类按钮的命中区域整段吃掉。
+    const notices = styleRuleBody(styles, '\\.game-resource-book-notices');
+    expect(notices).toMatch(/position:\s*absolute/u);
+    expect(notices).toMatch(/pointer-events:\s*none/u);
+    expect(styleNumber(notices, 'z-index')).toBeGreaterThan(sceneZIndex);
+    expect(
+      styleRuleBody(styles, '\\.game-resource-book-notices > \\*'),
+    ).toMatch(/pointer-events:\s*auto/u);
+    // 提示条必须落在栏目标题栏下面：顶边 ≥ 标题栏高度，两者不共享同一条水平带。
+    expect(styleNumber(notices, 'top')).toBeGreaterThanOrEqual(titlebarHeight);
   });
 
   it('keeps the outline dock readable without hover', () => {
@@ -1339,30 +1350,32 @@ export function registerProjectWorkbenchFoundationTests() {
         .getAttribute('aria-current'),
     ).toBe('page');
 
-    // 搜索框与栏目标题栏分属两条排布带，这不是 CSS 声明能表达的：画本场景是管理区里
-    // 铺满整块的绝对定位层，搜索框只要还在场景内部，就一定会被栏目标题栏压在同一个
-    // 水平带上。所以这里钉住渲染出来的 DOM 归属关系。
-    const searchLabel = screen.getByLabelText('搜索项目资源').closest('label');
+    // 搜索浮层与栏目标题栏分属两条排布带，这不是 CSS 声明能表达的：画本场景是管理区里
+    // 铺满整块的绝对定位层，搜索框只要落在场景内部，就会跟着场景走、和栏目标题栏共享
+    // 同一条水平带。所以这里钉住渲染出来的 DOM 归属关系：浮层是管理区的直接子节点，
+    // 与画本场景并列，而且只在打开时存在。
+    expect(screen.queryByLabelText('搜索项目资源')).toBeNull();
+    const searchLabel = openResourceSearch().closest('label');
     expect(searchLabel?.className).toContain('game-resource-search');
 
-    const toolsBand = searchLabel?.parentElement ?? null;
-    expect(toolsBand?.className).toContain('game-resource-book-tools');
-
-    const manager = toolsBand?.parentElement ?? null;
+    const manager = searchLabel?.parentElement ?? null;
     expect(manager?.className).toContain('game-resource-manager');
 
-    // 画本场景是管理区里铺满整块的绝对定位层：搜索框只要落在它内部，就会被栏目标题栏
-    // 压在同一个水平带上。入场动画会替换场景节点，所以这里用祖先链判断归属关系，
-    // 不依赖某一个具体节点的身份，也不受节点替换影响。
-    // 从父节点起算：label 自己就带 `game-resource-search`，closest 要排除自身。
+    // 入场动画会替换场景节点，所以这里用祖先链判断归属关系，不依赖某一个具体节点的
+    // 身份，也不受节点替换影响。从父节点起算：label 自己就带 `game-resource-search`。
     const searchAncestors = searchLabel?.parentElement ?? null;
     expect(searchAncestors?.closest('.game-resource-book-scene')).toBeNull();
     expect(searchAncestors?.closest('.game-resource-book-main')).toBeNull();
-    expect(searchAncestors?.closest('.game-resource-book-tools')).toBe(
-      toolsBand,
+    expect(searchAncestors).toBe(manager);
+
+    // 浮层提示层同样挂在管理区上，与画本场景并列，而不是场景内部的流式内容。
+    const notices = manager?.querySelector(
+      ':scope > .game-resource-book-notices',
     );
-    // 两条排布带在管理区里是并列的：搜索框所在的工具条带与画本场景各占一条。
-    expect(toolsBand?.parentElement).toBe(manager);
+    expect(notices).not.toBeNull();
+    expect(notices?.closest('.game-resource-book-scene')).toBeNull();
+
+    // 画本场景是管理区里铺满整块的绝对定位层，两个浮层与它并列。
     expect(
       manager?.querySelector(':scope > .game-resource-book-scene'),
     ).not.toBeNull();
@@ -1453,11 +1466,11 @@ export function registerProjectWorkbenchFoundationTests() {
       }),
     );
 
-    // 搜索框是常驻的真输入框（图标 + input 都在同一个 label 里），不是悬停才展开的浮层。
-    const searchInput = () =>
-      screen.getByLabelText('搜索项目资源') as HTMLInputElement;
-    expect(searchInput().type).toBe('search');
-    expect(searchInput().closest('label')?.className).toContain(
+    // 搜索框不再常驻：常态只有右下角 Dock 里的搜索按钮，浮层由按钮或 Ctrl/Cmd+F 叫出。
+    expect(screen.queryByLabelText('搜索项目资源')).toBeNull();
+    const searchInput = openResourceSearch();
+    expect(searchInput.type).toBe('search');
+    expect(searchInput.closest('label')?.className).toContain(
       'game-resource-search',
     );
 
@@ -1468,24 +1481,130 @@ export function registerProjectWorkbenchFoundationTests() {
     await waitFor(() => expect(overviewCards()).toHaveLength(2));
 
     // 总览态：输入即过滤总览摞上的卡片。
-    fireEvent.change(searchInput(), { target: { value: 'alpha-hero' } });
+    fireEvent.change(searchInput, { target: { value: 'alpha-hero' } });
     await waitFor(() => expect(overviewCards()).toHaveLength(1));
 
-    // 分页画布态：同一条件继续生效，输入框仍可读写。
+    // 分页画布态：同一条件继续生效。点栏目大纲属于「点外部」，浮层按既有口径收起，
+    // 但搜索条件跟着状态走，不随浮层消失。
     await openResourceBookCategory('角色与对象');
-    expect(searchInput().value).toBe('alpha-hero');
+    expect(screen.queryByLabelText('搜索项目资源')).toBeNull();
     await waitFor(() =>
       expect(getResourceSelectButton('alpha-hero.png')).not.toBeNull(),
     );
     expect(queryResourceSelectButton('beta-enemy.png')).toBeNull();
 
     // 清空后恢复：证明这条链路确实由搜索框驱动。
-    fireEvent.change(searchInput(), { target: { value: '' } });
+    fireEvent.change(openResourceSearch(), { target: { value: '' } });
     await waitFor(() =>
       expect(queryResourceSelectButton('beta-enemy.png')).not.toBeNull(),
     );
   });
 
+  it('calls out the resource search overlay by shortcut and closes it without clearing the condition', async () => {
+    const manifest = createGameCreationAppManifest(
+      'workbench-search-overlay',
+      '资源搜索浮层开合测试',
+    );
+    manifest.assets = [
+      {
+        id: 'overlay-alpha',
+        kind: 'character',
+        mediaType: 'image/png',
+        localPath: 'assets/alpha-hero.png',
+        source: { kind: 'generated', taskId: 'art-asset-plan' },
+      },
+      {
+        id: 'overlay-beta',
+        kind: 'character',
+        mediaType: 'image/png',
+        localPath: 'assets/beta-enemy.png',
+        source: { kind: 'generated', taskId: 'art-asset-plan' },
+      },
+    ];
+    const invoke = vi.fn(
+      async (command: string, args?: Record<string, unknown>) => {
+        if (command === 'read_local_project_resource_graph') {
+          return resourceGraphForInputs(args);
+        }
+        if (command === 'read_local_project_resource_canvas_layout') {
+          return {
+            schemaVersion: 'game-creator-resource-layout.v1',
+            projectId: args?.expectedProjectId,
+            mode: args?.mode,
+            revision: 0,
+            positions: [],
+            updatedAt: 0,
+          };
+        }
+        throw new Error(`unexpected invoke ${command}`);
+      },
+    );
+    window.__TAURI__ = { core: { invoke } };
+
+    render(
+      React.createElement(ProjectDevelopmentView, {
+        projectName: manifest.name,
+        projectPath: '/tmp/workbench-search-overlay',
+        manifest,
+        attachments: [],
+        recentRunStatus: null,
+        recentRunStopReason: null,
+        supervisor: React.createElement('div', null, '项目总控'),
+        onHomeOpen: vi.fn(),
+        onProjectsOpen: vi.fn(),
+      }),
+    );
+
+    const overviewCards = () =>
+      document.querySelectorAll(
+        '.game-resource-book-scene-card[data-resource-book-category="character"]',
+      );
+    await waitFor(() => expect(overviewCards()).toHaveLength(2));
+    const searchTrigger = () =>
+      screen.getByRole('button', { name: '搜索资源' });
+    expect(searchTrigger().getAttribute('aria-expanded')).toBe('false');
+
+    // Ctrl/Cmd+F 叫出浮层，焦点自动落到搜索框（PRD「焦点落到资源搜索框」的入口）。
+    fireEvent.keyDown(window, { key: 'f', ctrlKey: true });
+    const searchInput = screen.getByLabelText(
+      '搜索项目资源',
+    ) as HTMLInputElement;
+    expect(searchTrigger().getAttribute('aria-expanded')).toBe('true');
+    expect(document.activeElement).toBe(searchInput);
+
+    fireEvent.change(searchInput, { target: { value: 'alpha-hero' } });
+    await waitFor(() => expect(overviewCards()).toHaveLength(1));
+    // 有搜索条件时 Dock 上的搜索按钮保持高亮：浮层收起后条件仍在，按钮必须看得出来。
+    expect(searchTrigger().className).toContain('is-active');
+
+    // Esc 只收起浮层：搜索条件不跟着被清掉（关闭不等于清除搜索）。
+    fireEvent.keyDown(document, { key: 'Escape' });
+    expect(screen.queryByLabelText('搜索项目资源')).toBeNull();
+    expect(overviewCards()).toHaveLength(1);
+    expect(searchTrigger().getAttribute('aria-expanded')).toBe('false');
+
+    // 点搜索按钮同样能开合，且不会被「点外部关闭」抢在前面。
+    fireEvent.click(searchTrigger());
+    expect(screen.getByLabelText('搜索项目资源')).not.toBeNull();
+    fireEvent.click(searchTrigger());
+    expect(screen.queryByLabelText('搜索项目资源')).toBeNull();
+
+    // 点浮层外部关闭，条件继续保留。
+    fireEvent.click(searchTrigger());
+    expect(screen.getByLabelText('搜索项目资源')).not.toBeNull();
+    fireEvent.click(document.body);
+    expect(screen.queryByLabelText('搜索项目资源')).toBeNull();
+    expect(overviewCards()).toHaveLength(1);
+
+    // 「清除搜索并定位」那条链路的入口还在：清空搜索后过滤恢复。
+    fireEvent.click(searchTrigger());
+    fireEvent.change(screen.getByLabelText('搜索项目资源'), {
+      target: { value: '' },
+    });
+    await waitFor(() => expect(overviewCards()).toHaveLength(2));
+    expect(searchTrigger().className).not.toContain('is-active');
+  });
+
   it('paints the marquee selection box with the scene token root and non-empty geometry', async () => {
     const manifest = createGameCreationAppManifest(
       'workbench-marquee-colour',
@@ -2224,7 +2343,7 @@ export function registerProjectWorkbenchFoundationTests() {
       ).not.toBeNull(),
     );
     pause.mockClear();
-    const search = screen.getByLabelText('搜索项目资源');
+    const search = openResourceSearch();
     fireEvent.change(search, { target: { value: 'assets/hero.png' } });
     await waitFor(() => expect(pause.mock.instances).toContain(typeVideo));
     expect(getResourceSelectButton('hero.png')).not.toBeNull();
@@ -3152,7 +3271,7 @@ export function registerProjectWorkbenchFoundationTests() {
       '.game-resource-canvas-content',
     );
     const boundaryBeforeSearch = dependencyWorld?.dataset.resourceBoundary;
-    const search = screen.getByLabelText('搜索项目资源');
+    const search = openResourceSearch();
     fireEvent.change(search, { target: { value: 'ui-dependency' } });
     await waitFor(() => {
       expect(overlay.querySelector('[data-edge-kind]')).toBeNull();
@@ -4776,7 +4895,7 @@ export function registerProjectWorkbenchFoundationTests() {
     fireEvent.click(screen.getByRole('button', { name: '按类型' }));
     await openResourceBookCategory('角色与对象');
     expect(screen.getByLabelText('资源类型视图')).not.toBeNull();
-    fireEvent.change(screen.getByLabelText('搜索项目资源'), {
+    fireEvent.change(openResourceSearch(), {
       target: { value: 'hero.png' },
     });
     fireEvent.click(await findResourceSelectButton('hero.png'));
diff --git a/apps/ai-game-creator-shell/tests/projectResourceLiveIntegration.test.tsx b/apps/ai-game-creator-shell/tests/projectResourceLiveIntegration.test.tsx
index 9c8b24b9b..d198fed18 100644
--- a/apps/ai-game-creator-shell/tests/projectResourceLiveIntegration.test.tsx
+++ b/apps/ai-game-creator-shell/tests/projectResourceLiveIntegration.test.tsx
@@ -15,6 +15,7 @@ import {
   createGameCreationAppManifest,
   findResourceSelectButton,
   fireEvent,
+  openResourceSearch,
   render,
   screen,
   setComposerText,
@@ -580,7 +581,7 @@ describe('project resource live canvas integration', () => {
       '把角色头发设定改为红色',
     );
     // 搜索条件在提交前就存在，新素材（文档分类）不会命中它：走"被当前搜索隐藏"分支。
-    const search = screen.getByLabelText('搜索项目资源') as HTMLInputElement;
+    const search = openResourceSearch();
     fireEvent.change(search, { target: { value: 'source-art' } });
     fireEvent.click(within(panel).getByRole('button', { name: '修改' }));
     await waitFor(() => expect(deriveCalls).toHaveLength(1));
@@ -589,10 +590,12 @@ describe('project resource live canvas integration', () => {
     expect(
       await screen.findByText('新资源已保存，但被当前搜索条件隐藏'),
     ).not.toBeNull();
-    expect(search.value).toBe('source-art');
+    // 提交时点了快速编辑面板，搜索浮层按「点外部」收起；重新叫出来读到的仍是被保留的条件。
+    expect(openResourceSearch().value).toBe('source-art');
     fireEvent.click(screen.getByRole('button', { name: '清除搜索并定位' }));
 
-    expect(search.value).toBe('');
+    // 清空只由这个显式动作发起：再叫出浮层读到的已经是空值。
+    expect(openResourceSearch().value).toBe('');
     const operationId = String(deriveCalls[0]?.operationId);
     expect(
       (await findResourceSelectButton(`${operationId}-rules.md`)).getAttribute(