Crypto Donation Page Integration

I have a personal blog at https://harrytang.xyz, built with nextjs. I need a clean, professional Donate page that matches the site's design.

The page should:

- Start with no QR code. The visitor picks a coin (BTC, USDC or USDT), then a network if the coin has more than one, and only then sees the QR code and address.
- Have a one-click Copy button that confirms "Copied".
- Show a clear warning that funds sent on the wrong network cannot be recovered.
- Recent donations list read from a public blockchain API.
- Include a short "How it works" section and a small FAQ (I'll supply the wording).
- Work on mobile, tablet and desktop, in light and dark mode, and be keyboard and screen-reader accessible.
- Generate the QR code on my own site, with no third-party QR service.

Safety: I'll give you public receiving addresses only. You will never need my seed phrase or private keys, and anyone who asks for them is not a fit. The address and its QR code must come from one source in the code so they can't differ.

Deliverables: preview page first, do the work after review is approved.