Issue in older iphone in v4, but fine in v3

[RanjbarAli]

What version of Tailwind CSS are you using?
v4.1.4

What build tool (or framework if it abstracts the build tool) are you using?

"nuxt": "^3.17.1", "vite" : "latest"

What version of Node.js are you using?

v22.13.0

What browser are you using?

Iphone 7 - Safari

What operating system are you using?

IOS v15.8.4

TailwindCSS version 3 was completely fine, but in version 4, the layout has serious issues on the iPhone 7.
It works perfectly on high-end phones and laptops.
It was okay in version 3, but it doesn't work well in version 4.
Please suggest a solution.

it only gets wrong in npm run dev