header导航可以重新设计成这样，参考 https://lemonade.social/ 移动端显示在底部，响应式设计 <img width="640" height="406" alt="Image" src="https://github.com/user-attachments/assets/419569a2-55a8-4b71-b74b-201118b74f79" /> <img width="250" height="630" alt="Image" src="https://github.com/user-attachments/assets/f01fe4f7-b726-4230-9fe1-066ffd17e137" />
