diff --git a/scripts/autoloads/bullet_manager.gd b/scripts/autoloads/bullet_manager.gd
index bceaea3..c0fcd1e 100644
--- a/scripts/autoloads/bullet_manager.gd
+++ b/scripts/autoloads/bullet_manager.gd
@@ -82,8 +82,13 @@ func _check_collision(bullet_idx: int, base: int) -> bool:
 			hit_pos = Vector2(bx, by)
 		VFXManager.play("hit_spark", hit_pos)
 		EventBus.emit(EventID.BULLET_HIT, {"bullet_id": bullet_idx, "target_id": entity_id, "hit_pos": hit_pos})
+		# 无冷数据的普通子弹：无状态/荷载/穿透，直接回收
+		# （避免 .get(bullet_idx, {}) 每次命中都分配一个空字典默认值）
+		if not _bullet_contexts.has(bullet_idx):
+			_swap_and_pop(bullet_idx)
+			return true
 		# S4: 命中施加状态 / 连击标记
-		var cold: Dictionary = _bullet_contexts.get(bullet_idx, {})
+		var cold: Dictionary = _bullet_contexts[bullet_idx]
 		var status_id: int = int(cold.get("apply_status_id", -1))
 		if status_id > 0:
 			StatusManager.apply(entity_id, status_id, 1, -1.0, b_own)
diff --git a/scripts/autoloads/spatial_grid.gd b/scripts/autoloads/spatial_grid.gd
index 7a9c0f7..fe2230a 100644
--- a/scripts/autoloads/spatial_grid.gd
+++ b/scripts/autoloads/spatial_grid.gd
@@ -14,6 +14,12 @@ var _cs_node: Node = null      # SpatialGridCs C# 子节点（就绪后挂载）
 var _grid:        Array      = []  # Array[Array[int]]
 var _entity_cell: Dictionary = {}  # { entity_id → cell_idx }
 
+## query_circle 复用结果缓冲（避免每次调用新建 PackedInt32Array）
+## 由 clear()+append 就地填充后返回；调用方按值（CoW）读取。
+## 若调用方在遍历返回值时触发嵌套 query_circle（如命中→SpellEvaluator 区域查询），
+## 下一次 clear() 因引用计数>1 触发写时复制，旧结果不被破坏，语义与新建数组等价。
+var _query_result: PackedInt32Array = PackedInt32Array()
+
 func _ready() -> void:
 	_grid.resize(GRID_COLS * GRID_ROWS)
 	for i in _grid.size():
@@ -39,7 +45,7 @@ func insert(entity_id: int, pos: Vector2) -> void:
 func query_circle(center: Vector2, radius: float) -> PackedInt32Array:
 	if _cs_node and _cs_node.has_method("QueryCircle"):
 		return _cs_node.call("QueryCircle", center, radius)
-	var result := PackedInt32Array()
+	_query_result.clear()
 	var min_cx: int = clamp(int((center.x - radius + GRID_OFFSET) / CELL_SIZE), 0, GRID_COLS - 1)
 	var max_cx: int = clamp(int((center.x + radius + GRID_OFFSET) / CELL_SIZE), 0, GRID_COLS - 1)
 	var min_cy: int = clamp(int((center.y - radius + GRID_OFFSET) / CELL_SIZE), 0, GRID_ROWS - 1)
@@ -47,8 +53,8 @@ func query_circle(center: Vector2, radius: float) -> PackedInt32Array:
 	for cy in range(min_cy, max_cy + 1):
 		for cx in range(min_cx, max_cx + 1):
 			for eid in _grid[cx + cy * GRID_COLS]:
-				result.append(eid)
-	return result
+				_query_result.append(eid)
+	return _query_result
 
 ## 每帧由 EnemyManager._physics_process 驱动（dirty-list 方案）
 func rebuild() -> void: