diff --git a/components/label/LabelNossr.tsx b/components/label/LabelNossr.tsx
index 21d989f..28721b9 100644
--- a/components/label/LabelNossr.tsx
+++ b/components/label/LabelNossr.tsx
@@ -2024,10 +2024,22 @@ const LabelPage = ({
       const mode = usePaperStore.getState().mode
       const lowerKey = e.key.toLowerCase()
       const commandKey = e.ctrlKey || e.metaKey
+      const isShortcutGuideKey =
+        e.code === "Slash" || e.key === "?" || e.key === "/"
 
-      if (e.repeat && ["a", "b", "d", "h", "m", ",", "."].includes(lowerKey))
+      if (
+        e.repeat &&
+        ["a", "b", "d", "h", "m", ",", ".", "/", "?"].includes(lowerKey)
+      )
         return
 
+      if (!e.ctrlKey && !e.metaKey && !e.altKey && isShortcutGuideKey) {
+        e.preventDefault()
+        const keyboardState = useKeyboardStore.getState()
+        keyboardState.setShowShortcutGuide(!keyboardState.showShortcutGuide)
+        return
+      }
+
       if (!e.ctrlKey && !e.metaKey && !e.altKey && lowerKey === "m") {
         e.preventDefault()
         const topState = useTopToolsStore.getState()
diff --git a/components/label/components/PaperContainer.tsx b/components/label/components/PaperContainer.tsx
index d354a2b..247c7b1 100644
--- a/components/label/components/PaperContainer.tsx
+++ b/components/label/components/PaperContainer.tsx
@@ -121,6 +121,49 @@ type FrameSwitchGhostState = {
   animating: boolean
 }
 
+const SHORTCUT_GUIDE_SECTIONS = [
+  {
+    id: "global",
+    title: "全局",
+    items: [
+      ["? / /（Shift+/）", "显示或隐藏快捷键说明"],
+      ["0-9", "切换当前标注类别"],
+      ["滚轮", "缩放画布"],
+      ["Ctrl / ⌘ + S", "保存当前标注"],
+      ["Ctrl / ⌘ + Z", "撤销上一步"],
+      ["Ctrl / ⌘ + C", "复制当前选中对象"],
+      ["Ctrl / ⌘ + V", "粘贴到多帧"],
+      ["Ctrl / ⌘ + F", "合并当前选中对象"],
+      ["Ctrl / ⌘ + G", "创建对象组"],
+      ["Alt + X", "提交任务"],
+    ],
+  },
+  {
+    id: "edit",
+    title: "对象编辑",
+    items: [
+      ["Delete", "删除当前选中对象或点"],
+      ["H", "隐藏当前选中对象 / 全部对象"],
+      ["M", "切换磁吸模式"],
+      ["A", "进入选中对象补加绘制"],
+      ["D", "进入选中对象裁剪绘制"],
+      ["B", "续画当前选中的 polygon"],
+      [",", "对选中 polygon 执行相减"],
+      [".", "对选中 polygon / brush 执行融合"],
+      ["Esc", "取消当前绘制或退出辅助态"],
+    ],
+  },
+  {
+    id: "tool",
+    title: "专项工具",
+    items: [
+      ["F1", "进入辅助标注 / 在辅助模式下确认"],
+      ["I", "执行追踪"],
+      ["P", "QA 文本场景检查错词"],
+    ],
+  },
+] as const
+
 const clonePaperPoint = (point: paper.Point | null | undefined) => {
   if (!point) return null
   return new paper.Point(point.x, point.y)
@@ -183,6 +226,11 @@ const PaperContainer = (
   false && updateLoadingFlag
   const containerRef = useRef<any>(null)
   const contextMenuRef = useRef<HTMLDivElement>(null)
+  const shortcutGuideCardRef = useRef<HTMLDivElement>(null)
+  const shortcutGuideDragRef = useRef<{
+    offsetX: number
+    offsetY: number
+  } | null>(null)
   const [imgSize, setImageSize] = useState<{
     clientWidth: number
     clientHeight: number
@@ -451,6 +499,19 @@ const PaperContainer = (
     showTags,
     showTagsConfigs,
   } = useTopToolsStore()
+  const showShortcutGuide = useKeyboardStore((state) => state.showShortcutGuide)
+  const shortcutGuidePosition = useKeyboardStore(
+    (state) => state.shortcutGuidePosition
+  )
+  const setShortcutGuidePosition = useKeyboardStore(
+    (state) => state.setShortcutGuidePosition
+  )
+  const shortcutGuideCollapsedSections = useKeyboardStore(
+    (state) => state.shortcutGuideCollapsedSections
+  )
+  const toggleShortcutGuideSection = useKeyboardStore(
+    (state) => state.toggleShortcutGuideSection
+  )
 
   const {
     pathStatus: paperPathStatus,
@@ -469,8 +530,107 @@ const PaperContainer = (
     setContextMenuOperationId,
   } = useOtherToolsStore()
   const { renderTag } = useRenderTag()
-
   const [setup, setSetup] = useState(false)
+  const [isShortcutGuideDragging, setIsShortcutGuideDragging] = useState(false)
+
+  const clampShortcutGuidePosition = useCallback(
+    (position: { x: number; y: number }) => {
+      const container = containerRef.current as HTMLDivElement | null
+      const card = shortcutGuideCardRef.current
+      if (!container || !card) return position
+
+      const padding = 12
+      const maxX = Math.max(
+        padding,
+        container.clientWidth - card.offsetWidth - padding
+      )
+      const maxY = Math.max(
+        padding,
+        container.clientHeight - card.offsetHeight - padding
+      )
+
+      return {
+        x: Math.min(Math.max(position.x, padding), maxX),
+        y: Math.min(Math.max(position.y, padding), maxY),
+      }
+    },
+    []
+  )
+
+  const handleShortcutGuideDragStart = useCallback(
+    (event: React.MouseEvent<HTMLDivElement>) => {
+      if (event.button !== 0) return
+
+      const container = containerRef.current as HTMLDivElement | null
+      if (!container) return
+
+      const rect = container.getBoundingClientRect()
+      shortcutGuideDragRef.current = {
+        offsetX: event.clientX - rect.left - shortcutGuidePosition.x,
+        offsetY: event.clientY - rect.top - shortcutGuidePosition.y,
+      }
+      setIsShortcutGuideDragging(true)
+      event.preventDefault()
+      event.stopPropagation()
+    },
+    [shortcutGuidePosition.x, shortcutGuidePosition.y]
+  )
+
+  useEffect(() => {
+    if (!isShortcutGuideDragging) return
+
+    const handleMouseMove = (event: MouseEvent) => {
+      const container = containerRef.current as HTMLDivElement | null
+      const dragState = shortcutGuideDragRef.current
+      if (!container || !dragState) return
+
+      const rect = container.getBoundingClientRect()
+      setShortcutGuidePosition(
+        clampShortcutGuidePosition({
+          x: event.clientX - rect.left - dragState.offsetX,
+          y: event.clientY - rect.top - dragState.offsetY,
+        })
+      )
+    }
+
+    const stopDragging = () => {
+      shortcutGuideDragRef.current = null
+      setIsShortcutGuideDragging(false)
+    }
+
+    window.addEventListener("mousemove", handleMouseMove)
+    window.addEventListener("mouseup", stopDragging)
+
+    return () => {
+      window.removeEventListener("mousemove", handleMouseMove)
+      window.removeEventListener("mouseup", stopDragging)
+    }
+  }, [
+    clampShortcutGuidePosition,
+    isShortcutGuideDragging,
+    setShortcutGuidePosition,
+  ])
+
+  useLayoutEffect(() => {
+    if (!showShortcutGuide) return
+
+    const nextPosition = clampShortcutGuidePosition(shortcutGuidePosition)
+    if (
+      nextPosition.x !== shortcutGuidePosition.x ||
+      nextPosition.y !== shortcutGuidePosition.y
+    ) {
+      setShortcutGuidePosition(nextPosition)
+    }
+  }, [
+    clampShortcutGuidePosition,
+    imgSize?.clientHeight,
+    imgSize?.clientWidth,
+    setShortcutGuidePosition,
+    shortcutGuideCollapsedSections,
+    shortcutGuidePosition,
+    showShortcutGuide,
+  ])
+
   const labelRenderScaleRef = useRef<Record<string, number>>({})
   const renderedImageRef = useRef("")
   const frameImageCacheRef = useRef<Map<string, HTMLImageElement>>(new Map())
@@ -4105,6 +4265,158 @@ const PaperContainer = (
           }}
         />
       )}
+      {showShortcutGuide && (
+        <Box
+          style={{
+            position: "absolute",
+            top: shortcutGuidePosition.y,
+            left: shortcutGuidePosition.x,
+            zIndex: 48,
+            width: 264,
+            maxWidth: "min(264px, calc(100% - 24px))",
+            pointerEvents: "none",
+            background: "transparent",
+          }}>
+          <Card
+            ref={shortcutGuideCardRef}
+            shadow="sm"
+            padding="xs"
+            radius="md"
+            withBorder
+            onWheel={(event) => {
+              event.stopPropagation()
+            }}
+            style={{
+              pointerEvents: "auto",
+              maxHeight: "calc(100% - 24px)",
+              overflowY: "auto",
+              background:
+                "light-dark(rgba(255,255,255,0.78), rgba(24,28,36,0.74))",
+              borderColor:
+                "light-dark(rgba(34,139,230,0.18), rgba(114,192,252,0.18))",
+              backdropFilter: "blur(6px)",
+            }}>
+            <Stack gap={8}>
+              <Box
+                onMouseDown={handleShortcutGuideDragStart}
+                style={{
+                  cursor: isShortcutGuideDragging ? "grabbing" : "grab",
+                  userSelect: "none",
+                  borderRadius: 10,
+                  padding: "8px 10px",
+                  background:
+                    "light-dark(rgba(34,139,230,0.08), rgba(76,171,247,0.12))",
+                  border:
+                    "1px solid light-dark(rgba(34,139,230,0.12), rgba(114,192,252,0.14))",
+                }}>
+                <Group
+                  justify="space-between"
+                  align="flex-start"
+                  gap="xs"
+                  wrap="nowrap">
+                  <Box>
+                    <Text fw={700} size="sm">
+                      快捷键说明
+                    </Text>
+                    <Text size="10px" c="dimmed" style={{ lineHeight: 1.35 }}>
+                      默认靠左显示，可拖动；按{" "}
+                      <Text component="span" fw={700}>
+                        ?
+                      </Text>{" "}
+                      快速开关
+                    </Text>
+                  </Box>
+                  <Text
+                    size="10px"
+                    fw={700}
+                    px={6}
+                    py={3}
+                    style={{
+                      flexShrink: 0,
+                      borderRadius: 999,
+                      background:
+                        "light-dark(rgba(255,255,255,0.82), rgba(255,255,255,0.08))",
+                    }}>
+                    拖动
+                  </Text>
+                </Group>
+              </Box>
+              {SHORTCUT_GUIDE_SECTIONS.map((section) => {
+                const collapsed = !!shortcutGuideCollapsedSections[section.id]
+
+                return (
+                  <Box
+                    key={section.id}
+                    px="xs"
+                    py={8}
+                    style={{
+                      borderRadius: 10,
+                      background:
+                        "light-dark(rgba(248,250,252,0.72), rgba(15,18,24,0.32))",
+                      border:
+                        "1px solid light-dark(rgba(34,139,230,0.08), rgba(114,192,252,0.08))",
+                    }}>
+                    <Group
+                      justify="space-between"
+                      align="center"
+                      gap="xs"
+                      wrap="nowrap"
+                      onClick={() => {
+                        toggleShortcutGuideSection(section.id)
+                      }}
+                      style={{
+                        cursor: "pointer",
+                        userSelect: "none",
+                      }}>
+                      <Text size="xs" fw={700} c="blue">
+                        {section.title}
+                      </Text>
+                      <Text size="10px" c="dimmed" fw={700}>
+                        {collapsed ? "展开" : "收起"}
+                      </Text>
+                    </Group>
+                    {!collapsed && (
+                      <Stack gap={6} mt={8}>
+                        {section.items.map(([key, description]) => (
+                          <Group
+                            key={`${section.id}-${key}`}
+                            justify="space-between"
+                            align="flex-start"
+                            gap={6}
+                            wrap="nowrap">
+                            <Text
+                              size="10px"
+                              fw={700}
+                              px={5}
+                              py={2}
+                              style={{
+                                flexShrink: 0,
+                                borderRadius: 6,
+                                border:
+                                  "1px solid light-dark(rgba(34,139,230,0.16), rgba(114,192,252,0.16))",
+                                background:
+                                  "light-dark(rgba(255,255,255,0.88), rgba(255,255,255,0.06))",
+                              }}>
+                              {key}
+                            </Text>
+                            <Text
+                              size="10px"
+                              c="dimmed"
+                              ta="right"
+                              style={{ lineHeight: 1.35 }}>
+                              {description}
+                            </Text>
+                          </Group>
+                        ))}
+                      </Stack>
+                    )}
+                  </Box>
+                )
+              })}
+            </Stack>
+          </Card>
+        </Box>
+      )}
       {contextMenu}
       <Modal
         opened={confirmModalOpened}
diff --git a/components/label/components/TopTools.tsx b/components/label/components/TopTools.tsx
index b9c2950..7d7770d 100644
--- a/components/label/components/TopTools.tsx
+++ b/components/label/components/TopTools.tsx
@@ -46,6 +46,7 @@ import {
   Film,
   FolderDownIcon,
   Group as GroupIcon,
+  Keyboard,
   Locate,
   LocateFixed,
   LocateOff,
@@ -1560,6 +1561,10 @@ const TopTools = (
 
   const operationSchema = getOperationSchema(activeOperation)
   const drawAction = useKeyboardStore((state) => state.drawAction)
+  const showShortcutGuide = useKeyboardStore((state) => state.showShortcutGuide)
+  const setShowShortcutGuide = useKeyboardStore(
+    (state) => state.setShowShortcutGuide
+  )
 
   const subAttrForm = (
     <Box w={256}>
@@ -2529,6 +2534,23 @@ const TopTools = (
               <Component style={{ width: 20, height: 20 }} />
               <Text size="xs">对象</Text>
             </ActionIcon>
+            <Tooltip
+              label={
+                showShortcutGuide
+                  ? "关闭快捷键说明（?）"
+                  : "打开快捷键说明（?）"
+              }>
+              <ActionIcon
+                variant="transparent"
+                c={showShortcutGuide ? "var(--mantine-color-text)" : "gray"}
+                style={{ width: "auto", display: "flex", gap: 4 }}
+                onClick={() => {
+                  setShowShortcutGuide(!showShortcutGuide)
+                }}>
+                <Keyboard style={{ width: 20, height: 20 }} />
+                <Text size="xs">快捷键</Text>
+              </ActionIcon>
+            </Tooltip>
           </Flex>
         </Flex>
       </Flex>
diff --git a/components/label/useKeyBoardStore.tsx b/components/label/useKeyBoardStore.tsx
index 0dd39f6..78bb4e3 100644
--- a/components/label/useKeyBoardStore.tsx
+++ b/components/label/useKeyBoardStore.tsx
@@ -1,4 +1,5 @@
 import { create } from "zustand"
+import { persist } from "zustand/middleware"
 
 export interface SelectedObjectEditTarget {
   imageId: string
@@ -12,6 +13,15 @@ interface KeyboardStore {
   setCtrl: (v: boolean) => void
   shift: boolean
   setShift: (v: boolean) => void
+  showShortcutGuide: boolean
+  setShowShortcutGuide: (v: boolean) => void
+  shortcutGuidePosition: {
+    x: number
+    y: number
+  }
+  setShortcutGuidePosition: (position: { x: number; y: number }) => void
+  shortcutGuideCollapsedSections: Record<string, boolean>
+  toggleShortcutGuideSection: (sectionId: string) => void
   drawAction: "none" | "add" | "subtract"
   setDrawAction: (mode: "none" | "add" | "subtract") => void
   selectedObjectEditTarget: SelectedObjectEditTarget | null
@@ -20,16 +30,51 @@ interface KeyboardStore {
   setCopyDataIds: (ids: number[]) => void
 }
 
-export const useKeyboardStore = create<KeyboardStore>((set) => ({
-  ctrl: false,
-  shift: false,
-  drawAction: "none",
-  selectedObjectEditTarget: null,
-  copyDataIds: [],
-  setCtrl: (v) => set((state) => ({ ...state, ctrl: v })),
-  setShift: (v) => set((state) => ({ ...state, shift: v })),
-  setDrawAction: (mode) => set((state) => ({ ...state, drawAction: mode })),
-  setSelectedObjectEditTarget: (target) =>
-    set((state) => ({ ...state, selectedObjectEditTarget: target })),
-  setCopyDataIds: (ids) => set((state) => ({ ...state, copyDataIds: ids })),
-}))
+export const useKeyboardStore = create<KeyboardStore>()(
+  persist(
+    (set) => ({
+      ctrl: false,
+      shift: false,
+      showShortcutGuide: false,
+      shortcutGuidePosition: {
+        x: 16,
+        y: 16,
+      },
+      shortcutGuideCollapsedSections: {},
+      drawAction: "none",
+      selectedObjectEditTarget: null,
+      copyDataIds: [],
+      setCtrl: (v) => set((state) => ({ ...state, ctrl: v })),
+      setShift: (v) => set((state) => ({ ...state, shift: v })),
+      setShowShortcutGuide: (v) =>
+        set((state) => ({ ...state, showShortcutGuide: v })),
+      setShortcutGuidePosition: (position) =>
+        set((state) => ({
+          ...state,
+          shortcutGuidePosition: {
+            x: Math.round(position.x),
+            y: Math.round(position.y),
+          },
+        })),
+      toggleShortcutGuideSection: (sectionId) =>
+        set((state) => ({
+          ...state,
+          shortcutGuideCollapsedSections: {
+            ...state.shortcutGuideCollapsedSections,
+            [sectionId]: !state.shortcutGuideCollapsedSections[sectionId],
+          },
+        })),
+      setDrawAction: (mode) => set((state) => ({ ...state, drawAction: mode })),
+      setSelectedObjectEditTarget: (target) =>
+        set((state) => ({ ...state, selectedObjectEditTarget: target })),
+      setCopyDataIds: (ids) => set((state) => ({ ...state, copyDataIds: ids })),
+    }),
+    {
+      name: "keyboard-store",
+      partialize: (state) => ({
+        shortcutGuidePosition: state.shortcutGuidePosition,
+        shortcutGuideCollapsedSections: state.shortcutGuideCollapsedSections,
+      }),
+    }
+  )
+)
diff --git a/components/label/usePaperStore.ts b/components/label/usePaperStore.ts
index caff1dd..e562da9 100644
--- a/components/label/usePaperStore.ts
+++ b/components/label/usePaperStore.ts
@@ -80,6 +80,7 @@ const replacePaperWorkingPolygonShape = (
   }
 
   syncPaperCompoundPolygonChildrenData(nextShape, phase)
+  syncPaperObjectStrokeScaling(nextShape)
   currentShape?.remove()
 
   if (!nextShape.parent && originalParent && "insertChild" in originalParent) {
@@ -146,6 +147,7 @@ const createPaperPathFromGeometryContour = ({
   )
   path.strokeColor = clonePaperColor(strokeColor)
   path.strokeWidth = strokeWidth
+  path.strokeScaling = false
   path.fillColor = clonePaperColor(fillColor)
   path.visible = visible
   path.opacity = opacity
@@ -215,6 +217,7 @@ const createPaperPolygonShapeFromGeometry = ({
   compoundPath.data = safeClone(baseData)
   compoundPath.strokeColor = clonePaperColor(strokeColor)
   compoundPath.strokeWidth = strokeWidth
+  compoundPath.strokeScaling = false
   compoundPath.fillColor = clonePaperColor(fillColor)
   compoundPath.visible = visible
   compoundPath.opacity = opacity
@@ -899,6 +902,64 @@ const isPaperObjectType = (type: unknown) =>
   typeof type === "string" &&
   PAPER_OBJECT_TYPES.includes(type as (typeof PAPER_OBJECT_TYPES)[number])
 
+const syncPaperObjectStrokeScaling = (item: paper.Item | null | undefined) => {
+  if (!(item instanceof paper.Path || item instanceof paper.CompoundPath)) {
+    return
+  }
+  if (!isPaperObjectType(item.data?.type)) {
+    return
+  }
+
+  item.strokeScaling = false
+
+  if (item instanceof paper.CompoundPath) {
+    ;(item.children as paper.Path[]).forEach((child) => {
+      child.strokeScaling = false
+    })
+  }
+}
+
+const syncAllPaperObjectStrokeScaling = () => {
+  const group = usePaperStore.getState().group
+  if (!group) return
+
+  group
+    .getItems({
+      match: (item: paper.Item) =>
+        (item instanceof paper.Path || item instanceof paper.CompoundPath) &&
+        isPaperObjectType(item.data?.type),
+    })
+    .forEach((item) => {
+      syncPaperObjectStrokeScaling(item)
+    })
+}
+
+export const ensureEditablePaperPathSelected = (objectId: number) => {
+  const objectPaths = usePaperStore
+    .getState()
+    .getItemsById(objectId)
+    .filter(
+      (item): item is paper.Path =>
+        item instanceof paper.Path && isPaperObjectType(item.data?.type)
+    )
+
+  if (!objectPaths.length) return null
+
+  const editablePaths = objectPaths.filter(
+    (item) => !item.data?.isHollowPolygon
+  )
+  const activePath =
+    editablePaths.find((item) => item.data?.selected) ||
+    editablePaths[0] ||
+    null
+
+  objectPaths.forEach((item) => {
+    item.data.selected = item === activePath
+  })
+
+  return activePath
+}
+
 const isPaperContextHitType = (type: unknown) =>
   typeof type === "string" &&
   PAPER_CONTEXT_HIT_TYPES.includes(
@@ -1001,6 +1062,13 @@ const resetPaperShapeFillColor = (item: paper.Item) => {
 }
 
 const applyPaperSelectedPath = (item: paper.Path | paper.CompoundPath) => {
+  const objectId = Number(item.data?.id)
+  const editablePath = Number.isFinite(objectId)
+    ? ensureEditablePaperPathSelected(objectId)
+    : item instanceof paper.Path && !item.data?.isHollowPolygon
+      ? item
+      : null
+
   if (item.data.type === "rectangle" && item instanceof paper.Path) {
     item.data.selected = true
     usePaperSupportStore.getState().handleBufferPaths(item)
@@ -1008,19 +1076,25 @@ const applyPaperSelectedPath = (item: paper.Path | paper.CompoundPath) => {
     item.fillColor = item.data.fillColor || item.fillColor || null
   } else if (item.data.type === "brush") {
     item.data.selected = true
-    if (item instanceof paper.Path) {
-      usePaperSupportStore.getState().handleMask(item)
-      usePaperSupportStore.getState().handleBufferPaths(item)
-      usePaperSupportStore.getState().handleCircles(item)
+    if (editablePath) {
+      usePaperSupportStore.getState().handleMask(editablePath)
+      usePaperSupportStore.getState().handleBufferPaths(editablePath)
+      usePaperSupportStore.getState().handleCircles(editablePath)
     }
-  } else if (item.data.type === "point" && item instanceof paper.Path) {
+  } else if (item.data.type === "point") {
     item.data.selected = true
-    usePaperSupportStore.getState().handleMask(item)
-    usePaperSupportStore.getState().handleText(item)
-    usePaperSupportStore.getState().handleBufferPaths(item)
-    usePaperSupportStore.getState().handleCircles(item)
+    if (editablePath) {
+      usePaperSupportStore.getState().handleMask(editablePath)
+      usePaperSupportStore.getState().handleText(editablePath)
+      usePaperSupportStore.getState().handleBufferPaths(editablePath)
+      usePaperSupportStore.getState().handleCircles(editablePath)
+    }
   } else if (item.data.type === "polygon") {
     item.data.selected = true
+    if (editablePath) {
+      usePaperSupportStore.getState().handleBufferPaths(editablePath)
+      usePaperSupportStore.getState().handleCircles(editablePath)
+    }
     if (!(item instanceof paper.Path) || !item.data?.isHollowPolygon) {
       item.fillColor = item.data.fillColor || item.fillColor || null
     }
@@ -6649,19 +6723,16 @@ export const usePaperStore = create<PaperState>((set) => ({
     }
     return circle
   },
-  getBuffPath: (
-    item: paper.Segment,
-    index: number,
-    id: number,
-    _color: any
-  ) => {
+  getBuffPath: (item: paper.Segment, index: number, id: number, color: any) => {
     if (!item.next) return null
+    const hitStrokeColor = clonePaperColor(color) || new paper.Color("#fff")
+    hitStrokeColor.alpha = 0.001
     let bufferPath: paper.Path = new paper.Path(
       Object.assign(
         {
           parent: usePaperStore.getState().group!,
           segments: [item.point, item.next],
-          strokeColor: new paper.Color(0, 0, 0, 0), // 保留 hit 区域，但本体不可见
+          strokeColor: hitStrokeColor, // 透明度不能为 0，否则部分命中/hover 事件会失效
           strokeScaling: false,
           strokeWidth: 6, // 适度放宽 hover 区域，但避免干扰对象外默认点击
           strokeCap: "round",
@@ -6850,6 +6921,8 @@ export const usePaperStore = create<PaperState>((set) => ({
         }
         item.scale(1 / newScale)
       })
+
+      syncAllPaperObjectStrokeScaling()
     }
   },
   getAll: () => {
diff --git a/components/label/utils/objectVisibility.ts b/components/label/utils/objectVisibility.ts
index 21b526b..7b025c5 100644
--- a/components/label/utils/objectVisibility.ts
+++ b/components/label/utils/objectVisibility.ts
@@ -1,7 +1,10 @@
 import paper from "paper"
 import { useLabelStore, useObjectStore } from "../store"
 import { useOtherToolsStore } from "../useOtherToolsStore"
-import { usePaperStore } from "../usePaperStore"
+import {
+  ensureEditablePaperPathSelected,
+  usePaperStore,
+} from "../usePaperStore"
 import { usePaperSupportStore } from "../usePaperSupportStore"
 import { useTopToolsStore } from "../useTopToolsStore"
 
@@ -93,6 +96,13 @@ const applySelectedItemVisual = (item: paper.Item) => {
   if (!["rectangle", "polygon", "brush", "point"].includes(itemType || ""))
     return
 
+  const objectId = Number(item.data?.id)
+  const editablePath = Number.isFinite(objectId)
+    ? ensureEditablePaperPathSelected(objectId)
+    : item instanceof paper.Path && !item.data?.isHollowPolygon
+      ? item
+      : null
+
   if (itemType === "rectangle" && item instanceof paper.Path) {
     item.data.selected = true
     usePaperSupportStore.getState().handleBufferPaths(item)
@@ -100,19 +110,25 @@ const applySelectedItemVisual = (item: paper.Item) => {
     item.fillColor = item.data.fillColor || item.fillColor || null
   } else if (itemType === "brush") {
     item.data.selected = true
-    if (item instanceof paper.Path) {
-      usePaperSupportStore.getState().handleMask(item)
-      usePaperSupportStore.getState().handleBufferPaths(item)
-      usePaperSupportStore.getState().handleCircles(item)
+    if (editablePath) {
+      usePaperSupportStore.getState().handleMask(editablePath)
+      usePaperSupportStore.getState().handleBufferPaths(editablePath)
+      usePaperSupportStore.getState().handleCircles(editablePath)
     }
-  } else if (itemType === "point" && item instanceof paper.Path) {
+  } else if (itemType === "point") {
     item.data.selected = true
-    usePaperSupportStore.getState().handleMask(item)
-    usePaperSupportStore.getState().handleText(item)
-    usePaperSupportStore.getState().handleBufferPaths(item)
-    usePaperSupportStore.getState().handleCircles(item)
+    if (editablePath) {
+      usePaperSupportStore.getState().handleMask(editablePath)
+      usePaperSupportStore.getState().handleText(editablePath)
+      usePaperSupportStore.getState().handleBufferPaths(editablePath)
+      usePaperSupportStore.getState().handleCircles(editablePath)
+    }
   } else if (itemType === "polygon") {
     item.data.selected = true
+    if (editablePath) {
+      usePaperSupportStore.getState().handleBufferPaths(editablePath)
+      usePaperSupportStore.getState().handleCircles(editablePath)
+    }
     if (!(item instanceof paper.Path) || !item.data?.isHollowPolygon) {
       item.fillColor = item.data.fillColor || item.fillColor || null
     }