diff --git a/Assets/_Game/Scripts/Combat/HitBox.cs b/Assets/_Game/Scripts/Combat/HitBox.cs
index 6a6568f..5de485f 100644
--- a/Assets/_Game/Scripts/Combat/HitBox.cs
+++ b/Assets/_Game/Scripts/Combat/HitBox.cs
@@ -299,6 +299,16 @@ namespace BaseGames.Combat
         // Update 轮询时的临时缓冲（避免遍历字典时修改 + 降低 GC）
         private readonly List<Collider2D>              _intervalTickBuffer = new(8);
 
+        /// <summary>
+        /// 伤害目标层掩码（实例级过滤，叠加在 Physics2D 碰撞矩阵之上）。
+        /// 运行时可写：投射物弹反换阵营时由 Projectile 翻转目标侧。
+        /// </summary>
+        public LayerMask TargetLayers
+        {
+            get => _targetLayers;
+            set => _targetLayers = value;
+        }
+
         /// <summary>
         /// 配置为周期接触伤害模式（BodyContactDamage 等持续接触源在 OnEnable 时调用）。
         /// 使持续接触的判定盒按 <paramref name="interval"/> 对停留目标重复造成伤害，
diff --git a/Assets/_Game/Scripts/Combat/ParryableProjectile.cs b/Assets/_Game/Scripts/Combat/ParryableProjectile.cs
index ae9e8c7..5541db2 100644
--- a/Assets/_Game/Scripts/Combat/ParryableProjectile.cs
+++ b/Assets/_Game/Scripts/Combat/ParryableProjectile.cs
@@ -34,6 +34,13 @@ namespace BaseGames.Combat
                     Direction    = -Direction;
                     _rb.velocity = Direction * _config.Speed * _config.ParrySpeedMultiplier;
 
+                    // 阵营随弹反翻转：切到 PlayerProjectile 层（否则碰撞矩阵
+                    // EnemyProjectile↔EnemyHurtBox 不碰撞，反射后永远打不中敌人），
+                    // 伤害目标层同步从玩家侧切到敌人侧。
+                    int playerProjLayer = LayerMask.NameToLayer("PlayerProjectile");
+                    if (playerProjLayer >= 0) gameObject.layer = playerProjLayer;
+                    RetargetToEnemyFaction();
+
                     if (_reflectSource != null)
                         DamageInfo = DamageInfo.From(_reflectSource);
                     return;
@@ -41,6 +48,8 @@ namespace BaseGames.Combat
             }
 
             // ── 正常命中 ─────────────────────────────────────────────────
+            // 本类绕过 HitBox 自行判定，需自行套用其伤害目标层过滤
+            if ((_hitBox.TargetLayers.value & (1 << other.gameObject.layer)) == 0) return;
             var hurtBox = other.GetComponent<HurtBox>();
             if (hurtBox != null)
             {
diff --git a/Assets/_Game/Scripts/Combat/Projectile.cs b/Assets/_Game/Scripts/Combat/Projectile.cs
index 7f5e993..a08fc0a 100644
--- a/Assets/_Game/Scripts/Combat/Projectile.cs
+++ b/Assets/_Game/Scripts/Combat/Projectile.cs
@@ -26,6 +26,8 @@ namespace BaseGames.Combat
         private int  _hitsRemaining;
         // 弹反帧标记：弹反命中不计入命中预算（避免反射后立即被回收）
         private bool _justReflected;
+        // 预制体上配置的初始伤害目标层：对象池复用时还原，避免上一发弹反翻转后的掩码污染下一发
+        private LayerMask _initialTargetLayers;
 
         private PooledObject _pooledObject;
 
@@ -34,6 +36,7 @@ namespace BaseGames.Combat
             _rb           = GetComponent<Rigidbody2D>();
             _hitBox       = GetComponent<HitBox>();
             _pooledObject = GetComponent<PooledObject>();
+            _initialTargetLayers = _hitBox.TargetLayers;
             // 订阅命中确认：按命中预算决定何时回收（穿透 / 命中即消失）
             _hitBox.OnHitConfirmed += HandleHitConfirmed;
         }
@@ -49,6 +52,8 @@ namespace BaseGames.Combat
             _maxHits       = config.MaxHits;
             _hitsRemaining = config.MaxHits;
             _justReflected = false;
+            // 还原预制体配置的伤害目标层（清除上一次弹反翻转的影响）
+            _hitBox.TargetLayers = _initialTargetLayers;
 
             SetFactionLayer(ownerLayer);
             _hitBox.Activate(config.DamageSource);
@@ -82,12 +87,29 @@ namespace BaseGames.Combat
             // 重置 HitBox 命中记录，确保反射后可命中新目标
             _hitBox.Deactivate();
             _hitBox.Activate(_config?.DamageSource);
+            // 伤害目标随阵营翻转：玩家侧 → 敌人侧
+            RetargetToEnemyFaction();
 
             // 反射后重置命中预算，并跳过本次（弹反）命中的扣减，避免反射后立即被回收
             _hitsRemaining = _maxHits;
             _justReflected = true;
         }
 
+        /// <summary>
+        /// 弹反换阵营后，把伤害目标从玩家侧切到敌人侧
+        /// （仅交换 PlayerHurtBox→EnemyHurtBox 位，保留可破坏物等其他目标层）。
+        /// </summary>
+        protected void RetargetToEnemyFaction()
+        {
+            int playerHurt = LayerMask.NameToLayer("PlayerHurtBox");
+            int enemyHurt  = LayerMask.NameToLayer("EnemyHurtBox");
+            if (playerHurt < 0 || enemyHurt < 0) return; // Layer 尚未创建，保留现有掩码
+            int mask = _hitBox.TargetLayers.value;
+            mask &= ~(1 << playerHurt);
+            mask |=   1 << enemyHurt;
+            _hitBox.TargetLayers = mask;
+        }
+
         /// <summary>HitBox 命中确认回调：按命中预算决定是否回收（穿透 / 命中即消失）。</summary>
         private void HandleHitConfirmed(DamageInfo _)
         {