diff --git a/project/ui/inventory_ui.gd b/project/ui/inventory_ui.gd
index 6ae7ef2b..1021d564 100644
--- a/project/ui/inventory_ui.gd
+++ b/project/ui/inventory_ui.gd
@@ -29,6 +29,7 @@ const UiAssets = preload("res://ui/ui_assets.gd")
 const EquipRules = preload("res://equip_rules.gd")
 const ItemTooltip = preload("res://ui/item_tooltip.gd")
 const ItemTooltipView = preload("res://ui/item_tooltip_view.gd")
+const QuietPanel = preload("res://ui/quiet_panel.gd")
 const ChestSystem = preload("res://chest_system.gd")
 const ItemAttrSystem = preload("res://item_attr_system.gd")
 const MetinSocketSystem = preload("res://metin_socket_system.gd")
@@ -260,6 +261,7 @@ func _index_cells(root: Node) -> void:
 func _wire_cells() -> void:
 	for idx in _cells:
 		var cell: Panel = _cells[idx]
+		cell.set_script(QuietPanel)
 		var cell_idx: int = int(idx)
 		cell.gui_input.connect(func(e: InputEvent): _on_cell_input(cell_idx, e))
 		cell.mouse_entered.connect(func(): _on_cell_mouse_entered(cell_idx))
@@ -287,6 +289,7 @@ func _on_cell_mouse_entered(cell_idx: int) -> void:
 		return
 	var vnum := int(cell.get_meta("vnum", 0))
 	if vnum <= 0:
+		_hide_tooltip()
 		return
 	var count := int(cell.get_meta("count", 1))
 	var instance_data: Dictionary = cell.get_meta("item_data", {})
@@ -445,6 +448,7 @@ func _on_cell_input(ui_idx: int, e: InputEvent) -> void:
 		item_context.emit(w[0], w[1])
 		if context_consumer.is_valid() and bool(context_consumer.call(w[0], w[1])):
 			return
+		_hide_tooltip()
 		use(ui_idx)
 	elif e.button_index == MOUSE_BUTTON_LEFT:
 		if e.pressed and vnum != 0:
@@ -466,6 +470,7 @@ func _on_cell_input(ui_idx: int, e: InputEvent) -> void:
 				if item_mouse.attach_item(wire[0], wire[1], vnum, _item_count(ui_idx),
 						_icon(vnum), "inventory", metadata):
 					_drag_from = -1
+					_hide_tooltip()
 					return
 			_drag_from = ui_idx
 		elif not e.pressed and _drag_from != -1:
diff --git a/project/ui/quiet_button.gd b/project/ui/quiet_button.gd
new file mode 100644
index 00000000..d6564f39
--- /dev/null
+++ b/project/ui/quiet_button.gd
@@ -0,0 +1,9 @@
+# QuietButton —— 拦截 Godot 4 引擎内置 Tooltip 弹窗。
+#
+# 防止引擎在商店槽位悬停或点击时自动弹出原生简陋的灰色 TooltipPanel，
+# 确保所有商品装备与道具均由 40250 官方规范的 ItemTooltipView (ThinBoard) 独占呈现。
+# 同时完整保留 BaseButton.tooltip_text 字符串供测试校验复用。
+extends Button
+
+func _get_tooltip(_at_position: Vector2) -> String:
+	return ""
diff --git a/project/ui/quiet_panel.gd b/project/ui/quiet_panel.gd
new file mode 100644
index 00000000..079aa69b
--- /dev/null
+++ b/project/ui/quiet_panel.gd
@@ -0,0 +1,9 @@
+# QuietPanel —— 拦截 Godot 4 引擎内置 Tooltip 弹窗。
+#
+# 防止引擎在悬停或点击时自动弹出原生简陋的灰色 TooltipPanel，
+# 确保所有装备与道具均由 40250 官方规范的 ItemTooltipView (ThinBoard) 独占呈现。
+# 同时完整保留 Control.tooltip_text 字符串供测试校验及移动端详情模态窗复用。
+extends Panel
+
+func _get_tooltip(_at_position: Vector2) -> String:
+	return ""
diff --git a/project/ui/shop_ui.gd b/project/ui/shop_ui.gd
index df858b07..3b631c28 100644
--- a/project/ui/shop_ui.gd
+++ b/project/ui/shop_ui.gd
@@ -15,6 +15,7 @@ extends Node
 const CursorManager = preload("res://ui/cursor_manager.gd")
 const ItemTooltip = preload("res://ui/item_tooltip.gd")
 const ItemTooltipView = preload("res://ui/item_tooltip_view.gd")
+const QuietButton = preload("res://ui/quiet_button.gd")
 const UiAssets = preload("res://ui/ui_assets.gd")
 const UiKit = preload("res://ui_kit.gd")
 const UiBuild = preload("res://ui/ui_build.gd")
@@ -377,7 +378,7 @@ func _refresh_mobile_sell() -> void:
 
 # 40250 ItemSlot 单元格：32×32，带 Slot_Base.sub 底图，图标居中，右下角堆叠数量
 func _slot(it: Dictionary, pos: int) -> Button:
-	var slot := Button.new()
+	var slot := QuietButton.new()
 	slot.custom_minimum_size = Vector2(32, 32)
 	slot.size = Vector2(32, 32)
 	slot.clip_text = true