fix: 彻底修复GSAP动画泄漏导致的自动转场问题

关键修复：
- 在 SceneManager 中保存 animationFrameId 和 introTimeline 引用
- 在 Transition 中保存 timeline 引用
- dispose() 时彻底清理所有 GSAP 动画：
  * 停止 requestAnimationFrame 循环
  * 杀掉开场动画 timeline
  * 杀掉转场动画 timeline
  * 杀掉所有针对相机、地球的补间动画
- 添加 Transition.dispose() 方法
- 防止旧动画回调触发导致意外转场

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

js/scene/SceneManager.js

@@ -30,6 +30,10 @@ export class SceneManager {
         this.earthModel = null;
         this.transition = null;
 
+        // 动画控制
+        this.animationFrameId = null;
+        this.introTimeline = null;
+
         this.init();
     }
 
@@ -97,12 +101,15 @@ export class SceneManager {
     startIntroSequence(uiElements) {
         const animConfig = CONFIG.animation.intro;
 
-        const tl = gsap.timeline({
+        // 保存 timeline 引用，以便在 dispose 时清理
+        this.introTimeline = gsap.timeline({
             onComplete: () => {
                 this.isIntro = false; // 动画结束，允许交互
             }
         });
 
+        const tl = this.introTimeline;
+
         // A. 摄像机缓慢推进 (从 z=100 -> z=16)
         tl.to(this.camera.position, {
             z: CONFIG.scene.camera.defaultZ,
@@ -279,7 +286,7 @@ export class SceneManager {
 
     // 动画循环
     animate() {
-        requestAnimationFrame(() => this.animate());
+        this.animationFrameId = requestAnimationFrame(() => this.animate());
 
         // 如果不在转场中
         if (!this.transition || !this.transition.isActive()) {
@@ -299,6 +306,31 @@ export class SceneManager {
 
     // 销毁场景
     dispose() {
+        // 停止动画循环
+        if (this.animationFrameId) {
+            cancelAnimationFrame(this.animationFrameId);
+            this.animationFrameId = null;
+        }
+
+        // 杀掉所有正在运行的 GSAP 动画
+        if (this.introTimeline) {
+            this.introTimeline.kill();
+            this.introTimeline = null;
+        }
+
+        // 杀掉转场相关的 GSAP 动画（杀掉所有针对相机、地球等对象的动画）
+        if (this.camera) {
+            gsap.killTweensOf(this.camera.position);
+        }
+        if (this.earthModel) {
+            const earthGroup = this.earthModel.getGroup();
+            const clouds = this.earthModel.getClouds();
+            const atmosphere = this.earthModel.getAtmosphere();
+            if (earthGroup) gsap.killTweensOf(earthGroup.rotation);
+            if (clouds) gsap.killTweensOf(clouds.material);
+            if (atmosphere) gsap.killTweensOf(atmosphere.material);
+        }
+
         // 移除事件监听器，防止内存泄漏和重复触发
         if (this.eventHandlers) {
             window.removeEventListener('mousemove', this.eventHandlers.mouseMove);
@@ -308,6 +340,12 @@ export class SceneManager {
             window.removeEventListener('resize', this.eventHandlers.resize);
         }
 
+        // 清理转场动画
+        if (this.transition) {
+            this.transition.dispose();
+            this.transition = null;
+        }
+
         if (this.starSystem) this.starSystem.dispose();
         if (this.earthModel) this.earthModel.dispose();
         if (this.renderer) {

js/scene/Transition.js

@@ -11,6 +11,7 @@ export class Transition {
         this.uiElements = uiElements; // { uiLayer, hint, speedLines, cloudFog }
         this.onComplete = onComplete;
         this.isTransitioning = false;
+        this.timeline = null; // 保存 timeline 引用以便清理
     }
 
     // 触发超空间跳跃转场
@@ -29,14 +30,16 @@ export class Transition {
         const clouds = this.earthModel.getClouds();
         const atmosphere = this.earthModel.getAtmosphere();
 
-        // 创建GSAP时间线
-        const tl = gsap.timeline({
+        // 创建GSAP时间线（保存引用以便清理）
+        this.timeline = gsap.timeline({
             onComplete: () => {
                 this.isTransitioning = false;
                 if (this.onComplete) this.onComplete();
             }
         });
 
+        const tl = this.timeline;
+
         // 转场配置
         const warpConfig = CONFIG.warp;
         const transConfig = CONFIG.animation.transition;
@@ -101,4 +104,13 @@ export class Transition {
     isActive() {
         return this.isTransitioning;
     }
+
+    // 清理转场动画
+    dispose() {
+        if (this.timeline) {
+            this.timeline.kill();
+            this.timeline = null;
+        }
+        this.isTransitioning = false;
+    }
 }