You are a PPC specialist and Google Ads expert. Develop a comprehensive paid search strategy for an e-commerce store selling [products]. The strategy must cover: 1) Campaign structure (SKAGs, themes, match types), 2) Keyword research and negative keywords, 3) Ad copy creation (responsive search ads, extensions), 4) Shopping campaigns and product feeds, 5) Bid strategy and budget allocation, 6) Audience targeting and remarketing, 7) Landing page optimization, 8) Tracking and conversion setup, 9) A/B testing plan, 10) Reporting and optimization cadence. Include budget estimates and performance projections.