diff --git a/Assets/Tests/EditMode/AI/AiRuntimeTests.cs b/Assets/Tests/EditMode/AI/AiRuntimeTests.cs
index 9748d14d..a650d32e 100644
--- a/Assets/Tests/EditMode/AI/AiRuntimeTests.cs
+++ b/Assets/Tests/EditMode/AI/AiRuntimeTests.cs
@@ -159,5 +159,42 @@ namespace BaseGames.Tests.EditMode.AI
             Assert.IsEmpty(rt.Trace);
             Assert.IsFalse(ctx.BB.Has("scratch"));
         }
+
+        [Test]
+        public void LocalEventTransition_Fires()
+        {
+            var b = new BrainBuilder();
+            b.Entry("Idle");
+            b.State("Idle").To("Flee").OnEvent(AiSignal.Parried);
+            b.State("Flee");
+            var ctx = new FakeAiContext();
+            var rt = new AiRuntime(b.Build(), ctx);
+            rt.Send(AiSignal.Parried);
+            rt.Tick(0.1f);
+            Assert.AreEqual("Flee", rt.CurrentStateName);
+        }
+
+        [Test]
+        public void TwoRuntimes_ShareGraph_IndependentStateAndTimer()
+        {
+            var graph = Graph(); // 共享同一张不可变图
+            var a = new FakeAiContext(); var rtA = new AiRuntime(graph, a);
+            var b = new FakeAiContext(); var rtB = new AiRuntime(graph, b);
+
+            // A 发现玩家推进，B 不动 —— 状态独立
+            a.S.Sees = true; rtA.Tick(0.1f);
+            Assert.AreEqual("Chase", rtA.CurrentStateName);
+            Assert.AreEqual("Patrol", rtB.CurrentStateName);
+
+            // 两者各自进入 Search（计时归零）
+            a.S.Sees = false; a.S.LostForValue = 5f; rtA.Tick(0.1f);   // A -> Search
+            b.S.Sees = true; rtB.Tick(0.1f);                           // B -> Chase
+            b.S.Sees = false; b.S.LostForValue = 5f; rtB.Tick(0.1f);   // B -> Search
+
+            // 只推进 A 的 After 计时越过 3s；B 计时独立、不动
+            rtA.Tick(2f); rtA.Tick(2f);                                // A Search 计时 ~4 -> After -> Patrol
+            Assert.AreEqual("Patrol", rtA.CurrentStateName);
+            Assert.AreEqual("Search", rtB.CurrentStateName);           // B 独立，仍在 Search
+        }
     }
 }
diff --git a/Assets/_Game/Scripts/AI/AiRuntime.cs b/Assets/_Game/Scripts/AI/AiRuntime.cs
index c767c320..51783243 100644
--- a/Assets/_Game/Scripts/AI/AiRuntime.cs
+++ b/Assets/_Game/Scripts/AI/AiRuntime.cs
@@ -54,7 +54,10 @@ namespace BaseGames.AI
             {
                 var sig = _pending.Dequeue();
                 if (TryEventTransition(sig))
-                    return; // 事件触发转换后本帧结束
+                {
+                    IsSuspended = false; // 已推进转换，非挂起
+                    return;
+                }
             }
 
             // 2) IsControllable 让位门：受击/硬直/击飞时挂起，不推进决策也不跑 Tick。
diff --git a/Assets/_Game/Scripts/AI/BrainBuilder.cs b/Assets/_Game/Scripts/AI/BrainBuilder.cs
index 6b754ed6..fe64a4e6 100644
--- a/Assets/_Game/Scripts/AI/BrainBuilder.cs
+++ b/Assets/_Game/Scripts/AI/BrainBuilder.cs
@@ -23,7 +23,7 @@ namespace BaseGames.AI
                 s = new AiState(name);
                 _states[name] = s;
             }
-            return new StateBuilder(this, s);
+            return new StateBuilder(s);
         }
 
         public GlobalBuilder Global() => new GlobalBuilder(this);
@@ -52,9 +52,8 @@ namespace BaseGames.AI
 
         public sealed class StateBuilder
         {
-            readonly BrainBuilder _owner;
             readonly AiState _state;
-            internal StateBuilder(BrainBuilder owner, AiState state) { _owner = owner; _state = state; }
+            internal StateBuilder(AiState state) { _state = state; }
 
             public StateBuilder OnEnter(Action<IAiContext> fn) { _state.OnEnter = fn; return this; }
             public StateBuilder Tick(Action<IAiContext> fn) { _state.OnTick = (c, _) => fn(c); return this; }