可视化数据精准标题生成

以下为可选标题（主标题形式），均准确覆盖“季度销售额折线图、按地区与品类分组、含同比与环比”的信息要素：

- 季度销售额趋势（按地区×品类；含同比与环比）
- 分地区分品类的季度销售额及同比/环比趋势
- 季度销售额折线图：地区与品类分组，同步展示同比与环比
- 地区×品类维度的季度销售额变化（同比/环比）
- 按地区与品类的季度销售走势对比（含同比、环比）
- 季度销售额（地区×品类）趋势与同比/环比对比
- 地区与品类分组的季度销售额趋势图（含同比/环比）
- 季度销售额趋势分析——按地区与品类，含同比、环比
- 季度销售额按地区与品类的趋势与同比/环比
- 季度销售额折线：地区×品类分组及同比/环比对比

- Weekly New Users by Channel: This Week vs Last Week (Bar Chart)
- New Users by Acquisition Channel: Week-over-Week Comparison (Bar Chart)
- Week-over-Week New Users by Channel (This Week vs Last Week) — Bar Chart
- New User Counts per Channel: This Week vs Last Week (Weekly Report)
- Channel-Level New Users: Weekly Comparison (Bar Chart)
- New Users by Channel — Weekly Report: This Week vs Last Week
- New Users WoW by Channel: Bar Chart
- Weekly New Users per Channel: This Week vs Last Week (Bar Chart)
- New User Growth by Channel: Week-over-Week Bar Chart
- New Users by Channel: Comparative Weekly Bar Chart (This Week vs Last Week)

Signup Conversion Rate A/B Test: Variant A vs. Variant B by Cohort and Date