Standardize financial chart colors and improve label placement

js/charts/ppmt_core_profit.js

@@ -1,6 +1,6 @@
 import { col } from '../csv.js';
 import {
-  PALETTE, FONT, axisCommon, periodAxis, titleStyle, legendStyle,
+  PALETTE, FINANCIAL_COLORS, FONT, axisCommon, periodAxis, titleStyle, legendStyle,
   footnote, watermarks, LAYOUT,
 } from '../theme.js';
 
@@ -90,7 +90,7 @@ export function ppmtCoreProfitChart(rows, { width, height }) {
         yAxisIndex: 0,
         data: core,
         barWidth: 32,
-        itemStyle: { color: PALETTE.navy },
+        itemStyle: { color: FINANCIAL_COLORS.netProfit },
         label: {
           show: true,
           position: 'top',
@@ -107,12 +107,12 @@ export function ppmtCoreProfitChart(rows, { width, height }) {
         type: 'line',
         yAxisIndex: 1,
         data: yoy,
-        lineStyle: { color: PALETTE.coral, width: 3.08 },  // 与拆解图毛利率线一致
+        lineStyle: { color: FINANCIAL_COLORS.cashConversion, width: 3.08 },
         // 空心圆点：白心 + 彩色描边。图例会自动继承这个样式，
         // 渲染成「短线 + 空心圆」
         itemStyle: {
           color: '#fff',
-          borderColor: PALETTE.coral,
+          borderColor: FINANCIAL_COLORS.cashConversion,
           borderWidth: 2.5,   // 与 theme.js lineSeries 一致
         },
         symbol: 'circle',
@@ -123,7 +123,7 @@ export function ppmtCoreProfitChart(rows, { width, height }) {
           position: 'top',
           fontFamily: FONT,
           fontSize: 11,
-          color: PALETTE.coral,
+          color: FINANCIAL_COLORS.cashConversion,
           fontWeight: '600',
           formatter: (p) => {
             if (p.value === null || p.value === '') return '';