diff --git a/Assets/_Game/Scripts/Enemies/Navigation/GroundNavigator.cs b/Assets/_Game/Scripts/Enemies/Navigation/GroundNavigator.cs
index 8cf568ff..45ee2a1e 100644
--- a/Assets/_Game/Scripts/Enemies/Navigation/GroundNavigator.cs
+++ b/Assets/_Game/Scripts/Enemies/Navigation/GroundNavigator.cs
@@ -71,7 +71,21 @@ namespace BaseGames.Enemies.Navigation
             _hasTarget = false;
             _arrived   = false;
             _blocked   = false;
-            if (_enemy != null) _enemy.StopMovement();
+            HaltMovement();
+        }
+
+        /// <summary>
+        /// 停下水平移动。
+        /// <para>⚠ 必须直接写移动层输入，**不可**回调 <see cref="EnemyBase.StopMovement"/>——
+        /// 后者会调用 <c>Nav.Stop()</c>，与本导航器互相调用造成无限递归（栈溢出）。
+        /// 分层方向只允许 导航器 → 移动层，不允许反向回调。</para>
+        /// </summary>
+        private void HaltMovement()
+        {
+            if (_movement == null) return;
+            _movement.PendingInput.MoveDir   = 0f;
+            _movement.PendingInput.MoveSpeed = 0f;
+            _movement.PendingInput.WantStop  = true;
         }
 
         public void SetSpeed(float speed) => _speed = Mathf.Max(0f, speed);
@@ -95,7 +109,7 @@ namespace BaseGames.Enemies.Navigation
             if (Arrived(bodyX, _target.x, _stoppingDistance))
             {
                 _arrived = true;
-                if (_enemy != null) _enemy.StopMovement();
+                HaltMovement();
                 return;
             }
 
@@ -105,7 +119,7 @@ namespace BaseGames.Enemies.Navigation
             if (_movement.IsGrounded && _movement.WouldBlockAhead(dir))
             {
                 _blocked = true;
-                if (_enemy != null) _enemy.StopMovement();
+                HaltMovement();
                 return;
             }
 
@@ -117,7 +131,7 @@ namespace BaseGames.Enemies.Navigation
             if (_stall.Tick(bodyX, Time.fixedDeltaTime))
             {
                 _blocked = true;
-                if (_enemy != null) _enemy.StopMovement();
+                HaltMovement();
             }
         }