Product and commerce conversion page

Turn the method into an executable, Case-grounded workflow. The Skill is incomplete unless the final artifact can be traced to one named anchor Case.

Inputs

Ask only for missing inputs:

• Page goal, target audience, offer, and primary action.
• Content, proof, product assets, and technical stack.
• Responsive, accessibility, performance, and interaction constraints.
• Preferred anchor Case from references/cases.md, or permission to select one.

Required evidence gate