Generate a landing page design playbook in a {{tone}} tone for a {{industry}} business. The target reader is {{target_audience}}, and the conversion goal is {{goal}}. Structure the playbook with these sections: Overview, Prerequisites, Step-by-step Plays (with headlines, body copy, visual notes, and CTAs for each stage of the framework), Metrics to Track, and Troubleshooting Guide. Include conversion elements (primary CTA, secondary CTA, exit-intent offer, sticky CTA) and A/B testing recommendations (3 headline variations, 2 CTA alternatives, 1 structural test). Keep under 1800 words. Begin directly with the Overview section. Do not include any introductory chat.