If you experience this site title layout issue on mobile:
Please add the following code to Customize > Additional CSS:
@media (max-width: 900px) { .responsive-layout header.main-header .logo-tagline { max-width: 100%; } .responsive-layout header.main-header .first-row .logo-wrapper .text-logo { white-space: normal; } }
You can check this guide: How to add custom CSS / PHP code or modify the theme code