When I type with CJK input method, the canvas will move down, it is weird. <img width="628" height="314" alt="Image" src="https://github.com/user-attachments/assets/bd22a44d-3d6f-459a-9167-0d976e6f16d0" /> <img width="1000" height="642" alt="Image" src="https://github.com/user-attachments/assets/07899ba3-b631-42c8-8084-7fe0895bcf7f" />
