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Assets/Scripts/Combat/StatusEffects/FireEffect.cs

@@ -9,8 +9,10 @@ namespace BaseGames.Combat.StatusEffects
         private const float BaseDuration  = 3.0f;  // 持续 3 秒
         private const float DotInterval   = 0.5f;  // 每 0.5 秒一次
 
-        public override StatusEffectType EffectType => StatusEffectType.Fire;
-        public override int              MaxStacks   => 1;
+        public override StatusEffectType EffectType      => StatusEffectType.Fire;
+        public override int              MaxStacks        => 1;
+        /// <summary>施加燃烧时移除冻结（火冰互斥）。</summary>
+        public override StatusEffectType[] MutualExclusions => new[] { StatusEffectType.Freeze };
 
         public FireEffect()
         {

Assets/Scripts/Combat/StatusEffects/StaggerEffect.cs

@@ -20,6 +20,8 @@ namespace BaseGames.Combat.StatusEffects
 
         public override StatusEffectType EffectType => StatusEffectType.Stagger;
         public override int              MaxStacks   => 1;
+        /// <summary>眼晕（Stun）优先级高于硬直，眼晕状态下硬直不可施加。</summary>
+        public override StatusEffectType[] BlockedBy => new[] { StatusEffectType.Stun };
 
         public override void OnApply(StatusEffectManager owner)
         {

Assets/Scripts/Combat/StatusEffects/StatusEffect.cs

@@ -31,6 +31,19 @@ namespace BaseGames.Combat.StatusEffects
         /// <summary>是否已过期（由 Manager 每帧检查）。</summary>
         public virtual bool IsExpired => Duration <= 0f;
 
+        /// <summary>
+        /// 施加此效果时将被净化的互斥效果类型列表。
+        /// 例：FireEffect 返回 [Freeze]，表示施加燃烧时会同时移除冻结。
+        /// </summary>
+        public virtual StatusEffectType[] MutualExclusions => System.Array.Empty<StatusEffectType>();
+
+        /// <summary>
+        /// 阻止此效果施加的效果类型列表。
+        /// 宿主当前存在列表中任意效果时，本效果将被拒绝施加。
+        /// 例：StaggerEffect 返回 [Stun]，表示眩晕状态下无法再施加硬直。
+        /// </summary>
+        public virtual StatusEffectType[] BlockedBy => System.Array.Empty<StatusEffectType>();
+
         private float _tickTimer;
 
         /// <summary>宿主 Manager（OnApply 时注入，OnTick/OnExpire 中可访问）。</summary>

Assets/Scripts/Combat/StatusEffects/StatusEffectManager.cs

@@ -82,6 +82,15 @@ namespace BaseGames.Combat.StatusEffects
         /// <summary>直接施加一个具体效果（供技能/Boss 使用）。</summary>
         public void ApplyEffect(StatusEffect effect)
         {
+            // 检查是否被现有效果阻断
+            foreach (var blockerType in effect.BlockedBy)
+                if (_activeIndex.ContainsKey(blockerType)) return;
+
+            // 净化与新效果互斥的现有效果
+            foreach (var excludedType in effect.MutualExclusions)
+                if (_activeIndex.ContainsKey(excludedType))
+                    CleanseEffect(excludedType);
+
             if (_activeIndex.TryGetValue(effect.EffectType, out StatusEffect existing))
             {
                 existing.OnStack();