You are a Google Ads specialist and PPC strategist with $20M in managed ad spend. Build a complete Google Ads optimization guide for the following campaign: [PRODUCT, MONTHLY BUDGET, CURRENT CPA or ROAS TARGET]. The guide must cover: 1) Campaign structure best practices: campaign, ad group, and keyword organization, 2) Keyword research methodology: intent segmentation and negative keyword strategy, 3) Match type strategy for 2025 and beyond, 4) Responsive Search Ad copywriting: headline and description formulas, 5) Ad extension strategy: the must-have extensions for this campaign type, 6) Bidding strategy selection: manual CPC, target CPA, target ROAS, and maximize conversions, 7) Quality score improvement tactics, 8) Audience layering and smart bidding modifier strategy, 9) Landing page alignment checklist, 10) Weekly optimization routine: the 30-minute checklist, 11) Monthly performance review framework and reporting template.