alchaincyf/loop-engineering-orange-book — reverse-engineered prompt

I want a simple, polished landing page for my Orange Book called Loop Engineering, Stop Asking Me What It Is. It should feel clean, modern, and a little bold, with an orange themed visual style that matches the book art already in the repo.

Use the existing banner, cover, screenshots, and the two PDF files. The page should clearly explain in plain language what loop engineering is, why it matters, who this guide is for, and what the book covers across its four parts and nine sections. Make the English and Chinese PDF downloads really easy to find. Also include a short author section for HuaShu, plus links to the Orange Book series page and social profiles mentioned in the README.

I want this to work well on phones and desktop, and feel like a real product page, not just a raw file dump. If it makes sense, add a nice hero section, preview images, and a clear call to download the book for free. Look up current docs online if you need to.