添加官网景深效果

- 移除突兀的代码
- 为官网加装景深
- 修复PKG的导入

website/js/mouse-tracker.js

@@ -0,0 +1,83 @@
+// 通用鼠标位置追踪器
+// 提供全局鼠标位置状态，供其他模块使用
+
+class MouseTracker {
+    constructor() {
+        this.x = 0;          // 原始 X (0 ~ window.innerWidth)
+        this.y = 0;          // 原始 Y (0 ~ window.innerHeight)
+        this.normalizedX = 0; // 归一化 X (-1 ~ 1)
+        this.normalizedY = 0; // 归一化 Y (-1 ~ 1)
+        this.smoothX = 0;    // 平滑后的 X
+        this.smoothY = 0;    // 平滑后的 Y
+        this.listeners = [];
+        this.smoothing = 0.1; // 平滑系数 (0~1，越小越平滑)
+        this.isInside = false;
+        
+        this._init();
+    }
+
+    _init() {
+        document.addEventListener('mousemove', (e) => {
+            this.x = e.clientX;
+            this.y = e.clientY;
+            this.normalizedX = (e.clientX / window.innerWidth) * 2 - 1;
+            this.normalizedY = (e.clientY / window.innerHeight) * 2 - 1;
+            this.isInside = true;
+
+            this._notify();
+        });
+
+        document.addEventListener('mouseleave', () => {
+            this.isInside = false;
+        });
+
+        // 平滑动画循环
+        this._animate();
+    }
+
+    _animate() {
+        // 平滑插值
+        this.smoothX += (this.normalizedX - this.smoothX) * this.smoothing;
+        this.smoothY += (this.normalizedY - this.smoothY) * this.smoothing;
+
+        requestAnimationFrame(() => this._animate());
+    }
+
+    _notify() {
+        this.listeners.forEach(cb => {
+            cb({
+                x: this.x,
+                y: this.y,
+                normalizedX: this.normalizedX,
+                normalizedY: this.normalizedY,
+                smoothX: this.smoothX,
+                smoothY: this.smoothY,
+                isInside: this.isInside
+            });
+        });
+    }
+
+    // 添加监听器
+    onUpdate(callback) {
+        this.listeners.push(callback);
+    }
+
+    // 移除监听器
+    offUpdate(callback) {
+        const index = this.listeners.indexOf(callback);
+        if (index > -1) this.listeners.splice(index, 1);
+    }
+
+    // 设置平滑系数
+    setSmoothing(value) {
+        this.smoothing = Math.max(0, Math.min(1, value));
+    }
+
+    // 获取当前平滑值
+    getSmooth() {
+        return { x: this.smoothX, y: this.smoothY };
+    }
+}
+
+// 导出全局实例
+window.mouseTracker = new MouseTracker();