diff --git a/Assets/_Game/Scripts/Enemies/Abilities/MeleeAttackAbility.cs b/Assets/_Game/Scripts/Enemies/Abilities/MeleeAttackAbility.cs
index 06c1540c..605d9b8b 100644
--- a/Assets/_Game/Scripts/Enemies/Abilities/MeleeAttackAbility.cs
+++ b/Assets/_Game/Scripts/Enemies/Abilities/MeleeAttackAbility.cs
@@ -68,7 +68,9 @@ namespace BaseGames.Enemies.Abilities
             Phase = AbilityRunState.Active;
 
             float duration = atk.fallbackDuration;
-            if (atk.clip != null && _animancer != null)
+            // clip 是 ClipTransition(包装对象,恒非 null);须判其内部 .Clip 是否为空——
+            // 为空表示本段无动画,按 EnemyAttackSO 契约走 fallbackDuration,不可 Play(否则 Animancer 抛 Clip is null)。
+            if (atk.clip != null && atk.clip.Clip != null && _animancer != null)
             {
                 var state = _animancer.Play(atk.clip);
                 if (state != null && state.Length > 0f) duration = state.Length;