You can use the Relume online site builder to create a full sitemap and wireframes using AI.
Then, open Figma and clone the Relume style guide. Using the Relume Figma plugin you can import the wireframes you created online directly to Figma.
Next, clone the Webflow style guide to a new project. You can either use the Figma to Webflow plugin to import to Webflow, or you can copy/paste sections from the online Relume Library to Webflow. Or I believe their new Webflow app can also create the Webflow site directly from your online wireframes.