feat: 增加不同地区各渠道收入占比图

js/charts/ppmt_channel_share.js

@@ -1,7 +1,7 @@
 import { col } from '../csv.js';
 import {
   CHANNEL_COLORS, PALETTE, FONT, axisCommon, standalonePeriodAxis, titleStyle, standardLegend,
-  financialViewLabel, barSeries, footnote, watermarks, LAYOUT,
+  financialViewLabel, barSeries, stackedSharePoint, fanTinyLabelOffsets, footnote, watermarks, LAYOUT,
 } from '../theme.js';
 
 const CHANNELS = [
@@ -11,21 +11,14 @@ const CHANNELS = [
   { key: 'wholesale', name: '批发及其他', color: CHANNEL_COLORS.wholesale, labelColor: PALETTE.ink },
 ];
 
-function sharePoint(value, labelColor) {
-  if (!Number.isFinite(value) || value === 0) return null;
-  // 3.5% 以下的段放不下 11px 段内标签；当前数据最小为 3.7%（2025H2 机器人商店）
-  return {
-    value,
-    label: value >= 3.5
-      ? { position: 'inside', color: labelColor }
-      : { show: false },
-  };
-}
-
 /** 泡泡玛特全渠道收入占比：全部地区合并，每根柱按当期总收入归一化为 100%。 */
 export function channelShareChart(rows, { width, height, view = 'all' }) {
   const periods = col(rows, 'period');
   const barWidth = view === 'all' ? 48 : 80;
+  // 绘图区像素高：画布高 − grid top 145 − grid bottom 100；轴固定 0–100%
+  const pxPerUnit = (height - LAYOUT.gridTop - 100) / 100;
+  const seriesKeys = CHANNELS.map((item) => item.key);
+  const rowOffsets = fanTinyLabelOffsets(rows, seriesKeys, pxPerUnit);
 
   return {
     backgroundColor: '#fff',
@@ -59,9 +52,13 @@ export function channelShareChart(rows, { width, height, view = 'all' }) {
       interval: 20,
       axisLabel: { ...axisCommon.axisLabel, formatter: '{value}%' },
     },
-    series: CHANNELS.map((item) => barSeries({
+    series: CHANNELS.map((item, ci) => barSeries({
       name: item.name,
-      data: rows.map((row) => sharePoint(row[item.key], item.labelColor)),
+      data: rows.map((row, ri) => stackedSharePoint(row[item.key], {
+        pxPerUnit,
+        labelColor: item.labelColor,
+        dy: rowOffsets[ri][ci] ?? 0,
+      })),
       color: item.color,
       barWidth,
       stack: 'channel-share',