Update src/app/page.tsx

Merge version_2 into main

src/app/page.tsx

@@ -221,8 +221,11 @@ export default function LandingPage() {
         },
       ]}
     />
+  </div>
+  <div style={{ position: 'fixed', bottom: 20, right: 20, zIndex: 9999 }}>
+      <iframe src="https://chatgpt.com/?model=gpt-4" style={{ width: '400px', height: '600px', borderRadius: '16px', boxShadow: '0 10px 25px rgba(0,0,0,0.2)', border: 'none' }} />
   </div>
       </ReactLenis>
     </ThemeProvider>
   );
-}
+}