diff --git a/Extra2D/include/extra2d/app/application.h b/Extra2D/include/extra2d/app/application.h
index 3011a93..6412a13 100644
--- a/Extra2D/include/extra2d/app/application.h
+++ b/Extra2D/include/extra2d/app/application.h
@@ -8,7 +8,7 @@
 
 namespace extra2d {
 
-class IWindow;
+class GLFWWindow;
 class RenderBackend;
 class WindowModule;
 class RenderModule;
@@ -85,7 +85,7 @@ public:
    * @brief 获取窗口
    * @return 窗口指针
    */
-  IWindow *window();
+  GLFWWindow *window();
 
   /**
    * @brief 获取渲染器
diff --git a/Extra2D/include/extra2d/extra2d.h b/Extra2D/include/extra2d/extra2d.h
index 398b7e6..3b22b54 100644
--- a/Extra2D/include/extra2d/extra2d.h
+++ b/Extra2D/include/extra2d/extra2d.h
@@ -13,7 +13,7 @@
 // Config removed - app info now in Application class
 
 // Platform
-#include <extra2d/platform/iwindow.h>
+#include <extra2d/platform/glfw/glfw_window.h>
 #include <extra2d/platform/keys.h>
 #include <extra2d/platform/window_module.h>
 
diff --git a/Extra2D/include/extra2d/graphics/core/render_backend.h b/Extra2D/include/extra2d/graphics/core/render_backend.h
index b12bcb4..eb9a1b2 100644
--- a/Extra2D/include/extra2d/graphics/core/render_backend.h
+++ b/Extra2D/include/extra2d/graphics/core/render_backend.h
@@ -9,7 +9,7 @@
 namespace extra2d {
 
 // 前向声明
-class IWindow;
+class GLFWWindow;
 class Texture;
 class FontAtlas;
 class Shader;
@@ -26,7 +26,7 @@ public:
   // ------------------------------------------------------------------------
   // 生命周期
   // ------------------------------------------------------------------------
-  virtual bool init(IWindow* window) = 0;
+  virtual bool init(GLFWWindow* window) = 0;
   virtual void shutdown() = 0;
 
   // ------------------------------------------------------------------------
diff --git a/Extra2D/include/extra2d/graphics/opengl/gl_renderer.h b/Extra2D/include/extra2d/graphics/opengl/gl_renderer.h
index 609a6ca..cfcf4ba 100644
--- a/Extra2D/include/extra2d/graphics/opengl/gl_renderer.h
+++ b/Extra2D/include/extra2d/graphics/opengl/gl_renderer.h
@@ -15,7 +15,7 @@
 namespace extra2d {
 
 // 前向声明
-class IWindow;
+class GLFWWindow;
 class GLContext;
 class GLFramebuffer;
 
@@ -28,7 +28,7 @@ public:
   ~GLRenderer() override;
 
   // RenderBackend 接口实现
-  bool init(IWindow *window) override;
+  bool init(GLFWWindow *window) override;
   void shutdown() override;
 
   void beginFrame(const Color &clearColor) override;
@@ -132,7 +132,7 @@ private:
     float r, g, b, a;
   };
 
-  IWindow *window_;
+  GLFWWindow *window_;
   GLSpriteBatch spriteBatch_;
   Ptr<IShader> shapeShader_;
   Ptr<IShader> sdfFontShader_; // SDF字体专用着色器
diff --git a/Extra2D/include/extra2d/platform/glfw/glfw_window.h b/Extra2D/include/extra2d/platform/glfw/glfw_window.h
index 7cb9ef4..b6d43e8 100644
--- a/Extra2D/include/extra2d/platform/glfw/glfw_window.h
+++ b/Extra2D/include/extra2d/platform/glfw/glfw_window.h
@@ -1,54 +1,187 @@
 #pragma once
 
-#include <extra2d/platform/iwindow.h>
+#include <extra2d/core/types.h>
+#include <extra2d/core/math_types.h>
 #include <GLFW/glfw3.h>
+#include <functional>
+#include <string>
 
 namespace extra2d {
 
+/**
+ * @brief 光标形状
+ */
+enum class Cursor {
+    Arrow,
+    IBeam,
+    Crosshair,
+    Hand,
+    HResize,
+    VResize,
+    Hidden
+};
+
 /**
  * @brief GLFW 窗口实现
  */
-class GLFWWindow : public IWindow {
+class GLFWWindow {
 public:
+    using ResizeCb = std::function<void(int, int)>;
+    using CloseCb = std::function<void()>;
+    using FocusCb = std::function<void(bool)>;
+
     GLFWWindow();
-    ~GLFWWindow() override;
+    ~GLFWWindow();
 
-    bool create(const std::string& title, int width, int height, bool vsync = true) override;
-    void destroy() override;
+    /**
+     * @brief 创建窗口
+     * @param title 窗口标题
+     * @param width 窗口宽度
+     * @param height 窗口高度
+     * @param vsync 是否启用垂直同步
+     * @return 创建是否成功
+     */
+    bool create(const std::string& title, int width, int height, bool vsync = true);
 
-    void poll() override;
-    void swap() override;
-    bool shouldClose() const override;
-    void close() override;
+    /**
+     * @brief 销毁窗口
+     */
+    void destroy();
 
-    void setTitle(const std::string& title) override;
-    void setSize(int w, int h) override;
-    void setPos(int x, int y) override;
-    void setFullscreen(bool fs) override;
-    void setVSync(bool vsync) override;
-    void setVisible(bool visible) override;
+    /**
+     * @brief 轮询事件
+     */
+    void poll();
 
-    int width() const override;
-    int height() const override;
-    Size size() const override;
-    Vec2 pos() const override;
-    bool fullscreen() const override;
-    bool vsync() const override;
-    bool focused() const override;
-    bool minimized() const override;
+    /**
+     * @brief 交换缓冲区
+     */
+    void swap();
 
-    float scaleX() const override;
-    float scaleY() const override;
+    /**
+     * @brief 窗口是否应该关闭
+     */
+    bool shouldClose() const;
 
-    void setCursor(Cursor cursor) override;
-    void showCursor(bool show) override;
-    void lockCursor(bool lock) override;
+    /**
+     * @brief 设置窗口关闭标志
+     */
+    void close();
 
-    void onResize(ResizeCb cb) override;
-    void onClose(CloseCb cb) override;
-    void onFocus(FocusCb cb) override;
+    /**
+     * @brief 设置窗口标题
+     */
+    void setTitle(const std::string& title);
 
-    void* native() const override;
+    /**
+     * @brief 设置窗口大小
+     */
+    void setSize(int w, int h);
+
+    /**
+     * @brief 设置窗口位置
+     */
+    void setPos(int x, int y);
+
+    /**
+     * @brief 设置全屏模式
+     */
+    void setFullscreen(bool fs);
+
+    /**
+     * @brief 设置垂直同步
+     */
+    void setVSync(bool vsync);
+
+    /**
+     * @brief 设置窗口可见性
+     */
+    void setVisible(bool visible);
+
+    /**
+     * @brief 获取窗口宽度
+     */
+    int width() const { return width_; }
+
+    /**
+     * @brief 获取窗口高度
+     */
+    int height() const { return height_; }
+
+    /**
+     * @brief 获取窗口大小
+     */
+    Size size() const;
+
+    /**
+     * @brief 获取窗口位置
+     */
+    Vec2 pos() const;
+
+    /**
+     * @brief 是否全屏
+     */
+    bool fullscreen() const { return fullscreen_; }
+
+    /**
+     * @brief 是否启用垂直同步
+     */
+    bool vsync() const { return vsync_; }
+
+    /**
+     * @brief 窗口是否获得焦点
+     */
+    bool focused() const { return focused_; }
+
+    /**
+     * @brief 窗口是否最小化
+     */
+    bool minimized() const { return minimized_; }
+
+    /**
+     * @brief 获取内容缩放X
+     */
+    float scaleX() const { return scaleX_; }
+
+    /**
+     * @brief 获取内容缩放Y
+     */
+    float scaleY() const { return scaleY_; }
+
+    /**
+     * @brief 设置光标形状
+     */
+    void setCursor(Cursor cursor);
+
+    /**
+     * @brief 显示/隐藏光标
+     */
+    void showCursor(bool show);
+
+    /**
+     * @brief 锁定/解锁光标
+     */
+    void lockCursor(bool lock);
+
+    /**
+     * @brief 设置大小改变回调
+     */
+    void onResize(ResizeCb cb) { resizeCb_ = cb; }
+
+    /**
+     * @brief 设置关闭回调
+     */
+    void onClose(CloseCb cb) { closeCb_ = cb; }
+
+    /**
+     * @brief 设置焦点改变回调
+     */
+    void onFocus(FocusCb cb) { focusCb_ = cb; }
+
+    /**
+     * @brief 获取原生窗口句柄
+     */
+    void* native() const;
 
     /**
      * @brief 获取 GLFW 窗口句柄
diff --git a/Extra2D/include/extra2d/platform/iwindow.h b/Extra2D/include/extra2d/platform/iwindow.h
deleted file mode 100644
index eee6822..0000000
--- a/Extra2D/include/extra2d/platform/iwindow.h
+++ /dev/null
@@ -1,197 +0,0 @@
-#pragma once
-
-#include <extra2d/core/types.h>
-#include <extra2d/core/math_types.h>
-#include <functional>
-#include <string>
-
-namespace extra2d {
-
-/**
- * @brief 光标形状
- */
-enum class Cursor {
-    Arrow,
-    IBeam,
-    Crosshair,
-    Hand,
-    HResize,
-    VResize,
-    Hidden
-};
-
-/**
- * @brief 窗口抽象接口
- * 所有平台窗口后端必须实现此接口
- */
-class IWindow {
-public:
-    virtual ~IWindow() = default;
-
-    /**
-     * @brief 创建窗口
-     * @param title 窗口标题
-     * @param width 窗口宽度
-     * @param height 窗口高度
-     * @param vsync 是否启用垂直同步
-     * @return 创建是否成功
-     */
-    virtual bool create(const std::string& title, int width, int height, bool vsync = true) = 0;
-
-    /**
-     * @brief 销毁窗口
-     */
-    virtual void destroy() = 0;
-
-    /**
-     * @brief 轮询事件
-     */
-    virtual void poll() = 0;
-
-    /**
-     * @brief 交换缓冲区
-     */
-    virtual void swap() = 0;
-
-    /**
-     * @brief 窗口是否应该关闭
-     */
-    virtual bool shouldClose() const = 0;
-
-    /**
-     * @brief 设置窗口关闭标志
-     */
-    virtual void close() = 0;
-
-    /**
-     * @brief 设置窗口标题
-     */
-    virtual void setTitle(const std::string& title) = 0;
-
-    /**
-     * @brief 设置窗口大小
-     */
-    virtual void setSize(int w, int h) = 0;
-
-    /**
-     * @brief 设置窗口位置
-     */
-    virtual void setPos(int x, int y) = 0;
-
-    /**
-     * @brief 设置全屏模式
-     */
-    virtual void setFullscreen(bool fs) = 0;
-
-    /**
-     * @brief 设置垂直同步
-     */
-    virtual void setVSync(bool vsync) = 0;
-
-    /**
-     * @brief 设置窗口可见性
-     */
-    virtual void setVisible(bool visible) = 0;
-
-    /**
-     * @brief 获取窗口宽度
-     */
-    virtual int width() const = 0;
-
-    /**
-     * @brief 获取窗口高度
-     */
-    virtual int height() const = 0;
-
-    /**
-     * @brief 获取窗口大小
-     */
-    virtual Size size() const = 0;
-
-    /**
-     * @brief 获取窗口位置
-     */
-    virtual Vec2 pos() const = 0;
-
-    /**
-     * @brief 是否全屏
-     */
-    virtual bool fullscreen() const = 0;
-
-    /**
-     * @brief 是否启用垂直同步
-     */
-    virtual bool vsync() const = 0;
-
-    /**
-     * @brief 窗口是否获得焦点
-     */
-    virtual bool focused() const = 0;
-
-    /**
-     * @brief 窗口是否最小化
-     */
-    virtual bool minimized() const = 0;
-
-    /**
-     * @brief 获取内容缩放X
-     */
-    virtual float scaleX() const = 0;
-
-    /**
-     * @brief 获取内容缩放Y
-     */
-    virtual float scaleY() const = 0;
-
-    /**
-     * @brief 设置光标形状
-     */
-    virtual void setCursor(Cursor cursor) = 0;
-
-    /**
-     * @brief 显示/隐藏光标
-     */
-    virtual void showCursor(bool show) = 0;
-
-    /**
-     * @brief 锁定/解锁光标
-     */
-    virtual void lockCursor(bool lock) = 0;
-
-    /**
-     * @brief 窗口大小改变回调
-     */
-    using ResizeCb = std::function<void(int, int)>;
-
-    /**
-     * @brief 窗口关闭回调
-     */
-    using CloseCb = std::function<void()>;
-
-    /**
-     * @brief 窗口焦点改变回调
-     */
-    using FocusCb = std::function<void(bool)>;
-
-    /**
-     * @brief 设置大小改变回调
-     */
-    virtual void onResize(ResizeCb cb) = 0;
-
-    /**
-     * @brief 设置关闭回调
-     */
-    virtual void onClose(CloseCb cb) = 0;
-
-    /**
-     * @brief 设置焦点改变回调
-     */
-    virtual void onFocus(FocusCb cb) = 0;
-
-    /**
-     * @brief 获取原生窗口句柄
-     */
-    virtual void* native() const = 0;
-};
-
-} // namespace extra2d
diff --git a/Extra2D/include/extra2d/platform/window_module.h b/Extra2D/include/extra2d/platform/window_module.h
index f4b7db3..b5407f7 100644
--- a/Extra2D/include/extra2d/platform/window_module.h
+++ b/Extra2D/include/extra2d/platform/window_module.h
@@ -1,7 +1,7 @@
 #pragma once
 
 #include <extra2d/core/module.h>
-#include <extra2d/platform/iwindow.h>
+#include <extra2d/platform/glfw/glfw_window.h>
 #include <functional>
 #include <string>
 
@@ -48,11 +48,11 @@ public:
    * @brief 获取窗口
    * @return 窗口指针
    */
-  IWindow *win() const { return win_.get(); }
+  GLFWWindow *win() const { return win_.get(); }
 
 private:
   WindowCfg cfg_;
-  UniquePtr<IWindow> win_;
+  UniquePtr<GLFWWindow> win_;
   bool initialized_ = false;
 };
 
diff --git a/Extra2D/src/app/application.cpp b/Extra2D/src/app/application.cpp
index 6c1922b..203beff 100644
--- a/Extra2D/src/app/application.cpp
+++ b/Extra2D/src/app/application.cpp
@@ -3,7 +3,7 @@
 #include <extra2d/graphics/core/render_backend.h>
 #include <extra2d/graphics/core/render_module.h>
 #include <extra2d/graphics/memory/vram_manager.h>
-#include <extra2d/platform/iwindow.h>
+#include <extra2d/platform/glfw/glfw_window.h>
 #include <extra2d/platform/window_module.h>
 #include <extra2d/services/camera_service.h>
 #include <extra2d/services/event_service.h>
@@ -213,7 +213,7 @@ void Application::render() {
   winMod->win()->swap();
 }
 
-IWindow *Application::window() {
+GLFWWindow *Application::window() {
   auto *winMod = get<WindowModule>();
   return winMod ? winMod->win() : nullptr;
 }
diff --git a/Extra2D/src/graphics/opengl/gl_renderer.cpp b/Extra2D/src/graphics/opengl/gl_renderer.cpp
index 6a2ce5b..e5edef0 100644
--- a/Extra2D/src/graphics/opengl/gl_renderer.cpp
+++ b/Extra2D/src/graphics/opengl/gl_renderer.cpp
@@ -9,7 +9,7 @@
 #include <extra2d/graphics/opengl/gl_renderer.h>
 #include <extra2d/graphics/opengl/gl_texture.h>
 #include <extra2d/graphics/shader/shader_manager.h>
-#include <extra2d/platform/iwindow.h>
+#include <extra2d/platform/glfw/glfw_window.h>
 #include <extra2d/services/logger_service.h>
 #include <vector>
 
@@ -45,7 +45,7 @@ GLRenderer::~GLRenderer() { shutdown(); }
  * @param window 窗口指针
  * @return 初始化成功返回true，失败返回false
  */
-bool GLRenderer::init(IWindow *window) {
+bool GLRenderer::init(GLFWWindow *window) {
   window_ = window;
 
   // 初始化 OpenGL 上下文（Switch 平台已通过 SDL2 + EGL 初始化，GLContext
diff --git a/Extra2D/src/platform/glfw/glfw_window.cpp b/Extra2D/src/platform/glfw/glfw_window.cpp
index 63b1b5a..dc4f195 100644
--- a/Extra2D/src/platform/glfw/glfw_window.cpp
+++ b/Extra2D/src/platform/glfw/glfw_window.cpp
@@ -200,10 +200,6 @@ void GLFWWindow::setVisible(bool visible) {
 #endif
 }
 
-int GLFWWindow::width() const { return width_; }
-
-int GLFWWindow::height() const { return height_; }
-
 Size GLFWWindow::size() const {
   return Size(static_cast<float>(width_), static_cast<float>(height_));
 }
@@ -218,18 +214,6 @@ Vec2 GLFWWindow::pos() const {
   return Vec2(static_cast<float>(x), static_cast<float>(y));
 }
 
-bool GLFWWindow::fullscreen() const { return fullscreen_; }
-
-bool GLFWWindow::vsync() const { return vsync_; }
-
-bool GLFWWindow::focused() const { return focused_; }
-
-bool GLFWWindow::minimized() const { return minimized_; }
-
-float GLFWWindow::scaleX() const { return scaleX_; }
-
-float GLFWWindow::scaleY() const { return scaleY_; }
-
 void GLFWWindow::setCursor(Cursor cursor) {
 #ifndef __SWITCH__
   if (!glfwWindow_)
@@ -299,12 +283,6 @@ void GLFWWindow::lockCursor(bool lock) {
 #endif
 }
 
-void GLFWWindow::onResize(ResizeCb cb) { resizeCb_ = cb; }
-
-void GLFWWindow::onClose(CloseCb cb) { closeCb_ = cb; }
-
-void GLFWWindow::onFocus(FocusCb cb) { focusCb_ = cb; }
-
 void *GLFWWindow::native() const { return glfwWindow_; }
 
 bool GLFWWindow::initGLFW() {
diff --git a/Extra2D/src/scene/transition_box_scene.cpp b/Extra2D/src/scene/transition_box_scene.cpp
index e4e0fe0..53f31fa 100644
--- a/Extra2D/src/scene/transition_box_scene.cpp
+++ b/Extra2D/src/scene/transition_box_scene.cpp
@@ -2,7 +2,7 @@
 #include <extra2d/app/application.h>
 #include <extra2d/core/color.h>
 #include <extra2d/graphics/core/render_backend.h>
-#include <extra2d/platform/iwindow.h>
+#include <extra2d/platform/glfw/glfw_window.h>
 #include <algorithm>
 #include <glm/gtc/matrix_transform.hpp>
 
diff --git a/Extra2D/src/scene/transition_fade_scene.cpp b/Extra2D/src/scene/transition_fade_scene.cpp
index ef26fec..24e6bf6 100644
--- a/Extra2D/src/scene/transition_fade_scene.cpp
+++ b/Extra2D/src/scene/transition_fade_scene.cpp
@@ -1,7 +1,7 @@
 #include <extra2d/app/application.h>
 #include <extra2d/core/service_locator.h>
 #include <extra2d/graphics/core/render_backend.h>
-#include <extra2d/platform/iwindow.h>
+#include <extra2d/platform/glfw/glfw_window.h>
 #include <extra2d/scene/transition_fade_scene.h>
 #include <extra2d/services/logger_service.h>
 #include <glm/gtc/matrix_transform.hpp>