xnurta-ads-structure-analysis

Analyze how ad spend and efficiency break down across a structural dimension — campaign type (SP/SB/SD), marketplace/site, portfolio, weekday-vs-weekend, or hour-of-day — and diagnose where spend share and efficiency don't match (over-invested underperformers, under-invested strong performers). Optional sub-scenarios: SP deep-dive (manual vs auto targeting), SB new-to-brand focus. Use when the user asks "我 SP/SB/SD…