优化

src/modules/customers/components/CustomerBillingRulesPanel.test.ts

@@ -44,6 +44,7 @@ describe('CustomerBillingRulesPanel', () => {
     await flushPromises()
     expect(getCustomerDimensionConfig).toHaveBeenCalledWith('8')
     expect(document.body.textContent).toContain('按箱规尺寸计算')
+    expect(document.body.textContent).toContain('内径尺寸 + 外边加宽 × 2 = 外径尺寸')
     expect(document.body.textContent).toContain('小箱')
     expect(document.body.textContent).toContain('特大箱')
     expect(document.body.textContent).toContain('34 × 24 × 24')

src/modules/customers/components/CustomerBillingRulesPanel.vue

@@ -187,7 +187,7 @@ onMounted(loadConfig)
     <div v-else-if="loadError" class="rule-error" role="alert"><div><strong>箱规尺寸规则加载失败</strong><p>{{ loadError.message }}</p><ApiErrorMeta :details="loadError" /></div><el-button type="primary" plain :loading="loading" @click="loadConfig">重新加载</el-button></div>
     <section v-else-if="config" class="rule-card">
       <header class="rule-card-heading"><h2>按箱规尺寸计算</h2><el-button v-if="canEdit" type="primary" :disabled="loading" @click="openEditor"><Pencil :size="16" />编辑规则</el-button></header>
-      <div class="formula-band"><span>计算方式：<strong>内径尺寸 + 外边加宽 = 外径尺寸</strong></span><span>体积公式：外径长 × 外径宽 × 外径高 ÷ 1,000,000 = CBM</span><span>默认加边：2cm（每侧）</span></div>
+      <div class="formula-band"><span>计算方式：<strong>内径尺寸 + 外边加宽 × 2 = 外径尺寸</strong></span><span>体积公式：外径长 × 外径宽 × 外径高 ÷ 1,000,000 = CBM</span><span>默认加边：2cm（每侧）</span></div>
       <DataTable :data="config.rules" :columns="columns" :loading="loading" row-key="boxType" empty-text="当前客户暂无箱规尺寸规则">
         <template #boxTypeName="{ row }"><strong>{{ row.boxTypeName }}</strong></template>
         <template #inner="{ row }">{{ formatDimension(row.innerLengthCm, row.innerWidthCm, row.innerHeightCm) }}</template>