diff --git a/game/towers/InternTower.ts b/game/towers/InternTower.ts
index 798cf7b..cf72c47 100644
--- a/game/towers/InternTower.ts
+++ b/game/towers/InternTower.ts
@@ -10,7 +10,8 @@ export class InternTower extends TowerBase {
   public onSelfDestroy?: (tower: InternTower) => void
 
   constructor(scene: Phaser.Scene, gridX: number, gridY: number) {
-    super(scene, gridX, gridY, 50, 1, 15, 1.5, 'tower-intern')
+    // attackRange=1.5：近战覆盖相邻格，避免格子边界浮点漏攻击
+    super(scene, gridX, gridY, 50, 1.5, 15, 1.5, 'tower-intern')
   }
 
   override update(delta: number, enemies: EnemyBase[]): void {
diff --git a/game/towers/TowerBase.ts b/game/towers/TowerBase.ts
index 345a4ac..c1bd0db 100644
--- a/game/towers/TowerBase.ts
+++ b/game/towers/TowerBase.ts
@@ -100,7 +100,8 @@ export abstract class TowerBase {
   }
 
   protected findTarget(enemies: EnemyBase[]): EnemyBase | null {
-    const rangePx = this.attackRange * this.cellW
+    // +0.5格容忍量，避免怪物恰好在射程边界时因浮点误差漏判
+    const rangePx = (this.attackRange + 0.5) * this.cellW
     let best: EnemyBase | null = null
     let bestProgress = -1
     for (const e of enemies) {
diff --git a/game/ui/HUD.ts b/game/ui/HUD.ts
index fd7491c..ab8dc41 100644
--- a/game/ui/HUD.ts
+++ b/game/ui/HUD.ts
@@ -11,6 +11,7 @@ export class HUD {
   private scene: Phaser.Scene
   private waveBtn: Phaser.GameObjects.Text | null = null
   private waveBannerTimeout: (() => void) | null = null
+  private _onClick: (() => void) | null = null
 
   constructor(scene: Phaser.Scene) {
     this.scene = scene
@@ -22,6 +23,7 @@ export class HUD {
    */
   createWaveButton(onClick: () => void): void {
     if (this.waveBtn) this.waveBtn.destroy()
+    this._onClick = onClick   // 保存引用，供 enableWaveButton 重新绑定
 
     this.waveBtn = this.scene.add
       .text(GAME_WIDTH - 160, HUD_HEIGHT + 20, '▶ 召唤下一波', {
@@ -58,6 +60,11 @@ export class HUD {
   enableWaveButton(): void {
     if (!this.waveBtn) return
     this.waveBtn.setStyle({ color: '#A78BFA', backgroundColor: '#1e3a5f' })
+    // 重新绑定点击事件（disableWaveButton 会 removeAllListeners）
+    this.waveBtn.removeAllListeners('pointerdown')
+    if (this._onClick) {
+      this.waveBtn.on('pointerdown', () => this._onClick!())
+    }
   }
 
   /**