Role: you are a copywriter focused on results.

Context: I want a case study section on the website for [product], built around one customer success.

Customer story: [describe the customer, the starting situation and the result]

Task: write the full section, including:
1. A headline that states the result.
2. A before-and-after structure.
3. The specific numbers or the transformation that was achieved.
4. A short quote from the customer.
5. A call to action that ties this proof directly to the outcome the visitor wants for themselves.

If the customer story is missing, ask me for it before writing.