基础型组（F1–F13）· Lupi 语法 × 基础图型剪影
柱 / 折线 / 面积 / 环形 / 横条 / 分组 / 堆叠 / 散点 / 瀑布 / 热力 / 进度 / 哑铃 / 矩形树图。远看认得出图型剪影，近看每个单位可数（1 档 = $1k · 1 tick = 1 人 / 1%）。为稀疏聚合数据而设：数据不用多，密度来自单位分解。代码检索方式同 lupi-gallery：按 // ════ 图型名 ════ 注释块。
Revenue by plan, rung by rung
Thirty days of sign-ups
Concurrent users, filled with days
Where the traffic comes from
Six teams, shipped and counted
This year against last, plan by plan
Where each region's revenue sits
Price against satisfaction, twelve products
From gross to net, step by step
When support gets loud
How far to the quarter's goal
Onboarding, before and after the redesign
Where the work went