diff --git a/src/modules/energy/ElectricDaily.tsx b/src/modules/energy/ElectricDaily.tsx
index 93b0725..b1d0060 100644
--- a/src/modules/energy/ElectricDaily.tsx
+++ b/src/modules/energy/ElectricDaily.tsx
@@ -85,7 +85,6 @@ export default function ElectricDaily() {
     ? '自定义区间'
     : QUICK_PICK_OPTIONS.find(item => item.id === pick)?.label ?? '当前时段';
   const rangeText = `${effectiveRange.start} 至 ${effectiveRange.end}`;
-  const hasFeeDetail = totalFee > 0;
   const showExternalEmpty = customer === 'external' && months !== null && totalKwh === 0;
 
   const applyQuickPick = (nextPick: DateQuickPick) => {
@@ -172,9 +171,9 @@ export default function ElectricDaily() {
         <MetricTile
           icon={Wallet}
           label="充电费用"
-          value={hasFeeDetail ? `¥${totalFee.toLocaleString('zh-CN', { maximumFractionDigits: 0 })}` : '待同步'}
-          helper={hasFeeDetail ? `均价 ${avgPrice.toFixed(2)} 元/度` : '当前明细仅返回充电量'}
-          tone={hasFeeDetail ? 'emerald' : 'slate'}
+          value={`¥${totalFee.toLocaleString('zh-CN', { maximumFractionDigits: 0 })}`}
+          helper={`综合费用强度 ${avgPrice.toFixed(2)} 元/度`}
+          tone="emerald"
         />
         <MetricTile icon={CalendarDays} label="有效天数" value={`${activeDays}`} unit="天" helper={`日均 ${avgKwh.toLocaleString('zh-CN', { maximumFractionDigits: 1 })} 度`} tone="amber" />
         <MetricTile icon={TrendingUp} label="波动提醒" value={abnormalDays} unit="天" helper="环比超过 30% 标记" tone={abnormalDays > 0 ? 'rose' : 'slate'} />
diff --git a/src/modules/energy/ElectricOverview.tsx b/src/modules/energy/ElectricOverview.tsx
index db9609a..2264374 100644
--- a/src/modules/energy/ElectricOverview.tsx
+++ b/src/modules/energy/ElectricOverview.tsx
@@ -54,7 +54,7 @@ export default function ElectricOverview() {
       <div className="grid grid-cols-2 gap-3 md:grid-cols-4">
         <MetricTile icon={Wallet} label="累计充电费" value={fmtYuan(k.totalFee)} helper={fmtKwh(k.totalKwh)} />
         <MetricTile icon={CalendarClock} label="本月充电费" value={fmtYuan(k.monthFee)} helper={fmtKwh(k.monthKwh)} tone="emerald" />
-        <MetricTile icon={Gauge} label="累计均价" value={avgPrice.toFixed(2)} unit="元/度" helper={`本月 ${monthPrice.toFixed(2)} 元/度`} tone="amber" />
+        <MetricTile icon={Gauge} label="综合费用强度" value={avgPrice.toFixed(2)} unit="元/度" helper={`本月 ${monthPrice.toFixed(2)} 元/度 · 含零费用订单`} tone="amber" />
         <MetricTile icon={BatteryCharging} label="今日充电" value={k.todayKwh.toLocaleString('zh-CN', { maximumFractionDigits: 1 })} unit="度" helper={`${fmtYuan(k.todayFee)} · ${k.todayChainPct >= 0 ? '+' : ''}${(k.todayChainPct * 100).toFixed(1)}%`} tone={Math.abs(k.todayChainPct) >= 0.3 ? 'rose' : 'slate'} />
       </div>
 
diff --git a/src/server/routes/analytics/index.test.ts b/src/server/routes/analytics/index.test.ts
index d2e4527..485382a 100644
--- a/src/server/routes/analytics/index.test.ts
+++ b/src/server/routes/analytics/index.test.ts
@@ -7,7 +7,7 @@ test('returns the published mileage metric contract', async () => {
   const payload = await response.json();
 
   assert.equal(response.status, 200);
-  assert.equal(payload.catalogVersion, 2);
+  assert.equal(payload.catalogVersion, 3);
   assert.deepEqual(payload.domains, ['mileage']);
   assert.ok(payload.metrics.some((metric: { id: string }) => metric.id === 'mileage.assessment_completion_rate'));
 });
@@ -22,6 +22,17 @@ test('returns the published hydrogen metric contract', async () => {
   assert.ok(payload.metrics.some((metric: { id: string }) => metric.id === 'hydrogen.customer_order_gross_profit'));
 });
 
+test('returns the published electric metric contract', async () => {
+  const response = await app.request('/metrics?domain=electric');
+  const payload = await response.json();
+
+  assert.equal(response.status, 200);
+  assert.equal(payload.catalogVersion, 3);
+  assert.deepEqual(payload.domains, ['electric']);
+  assert.ok(payload.metrics.some((metric: { id: string }) => metric.id === 'electric.charge_total_fee'));
+  assert.ok(payload.metrics.some((metric: { id: string }) => metric.id === 'electric.blended_cost_intensity'));
+});
+
 test('rejects unpublished metric domains', async () => {
   const response = await app.request('/metrics?domain=energy');
 
diff --git a/src/shared/analytics/catalog.test.ts b/src/shared/analytics/catalog.test.ts
index f3efabd..ba1ea97 100644
--- a/src/shared/analytics/catalog.test.ts
+++ b/src/shared/analytics/catalog.test.ts
@@ -31,8 +31,20 @@ test('publishes hydrogen cost, revenue, and gross profit as separate metrics', (
   assert.equal(byId.get('hydrogen.customer_order_gross_profit')?.aggregation, 'derived');
 });
 
+test('publishes electric fee components and blended cost semantics', () => {
+  const metrics = listMetricDefinitions('electric');
+  const byId = new Map(metrics.map(metric => [metric.id, metric]));
+
+  assert.ok(metrics.length >= 6);
+  assert.equal(byId.get('electric.charge_total_fee')?.formula, 'SUM(fee)');
+  assert.equal(byId.get('electric.electricity_fee')?.formula, 'SUM(e_fee)');
+  assert.equal(byId.get('electric.service_fee')?.formula, 'SUM(service_fee)');
+  assert.equal(byId.get('electric.blended_cost_intensity')?.aggregation, 'weighted-ratio');
+});
+
 test('validates only published metric domains', () => {
   assert.equal(isMetricDomain('mileage'), true);
   assert.equal(isMetricDomain('hydrogen'), true);
+  assert.equal(isMetricDomain('electric'), true);
   assert.equal(isMetricDomain('unknown'), false);
 });
diff --git a/src/shared/analytics/catalog.ts b/src/shared/analytics/catalog.ts
index c886772..6e6073e 100644
--- a/src/shared/analytics/catalog.ts
+++ b/src/shared/analytics/catalog.ts
@@ -1,5 +1,5 @@
-export type MetricDomain = 'mileage' | 'hydrogen';
-export type MetricUnit = 'km' | 'kg' | 'cny' | 'percent' | 'vehicle' | 'station' | 'order' | 'timestamp';
+export type MetricDomain = 'mileage' | 'hydrogen' | 'electric';
+export type MetricUnit = 'km' | 'kg' | 'kwh' | 'cny' | 'cny-per-kwh' | 'percent' | 'vehicle' | 'station' | 'order' | 'timestamp';
 export type MetricAggregation = 'sum' | 'count' | 'derived' | 'weighted-ratio' | 'distinct-count' | 'latest';
 export type MetricTimeSemantics = 'flow' | 'snapshot' | 'freshness';
 
@@ -14,10 +14,10 @@ export interface MetricDefinition {
   formula: string;
   sources: readonly string[];
   dimensions: readonly string[];
-  drillEntity: 'vehicle' | 'assessment-target' | 'hydrogen-station' | 'hydrogen-customer' | 'hydrogen-order';
+  drillEntity: 'vehicle' | 'assessment-target' | 'hydrogen-station' | 'hydrogen-customer' | 'hydrogen-order' | 'electric-charge-order';
 }
 
-export const METRIC_CATALOG_VERSION = 2;
+export const METRIC_CATALOG_VERSION = 3;
 
 const MILEAGE_METRICS: readonly MetricDefinition[] = [
   {
@@ -194,9 +194,91 @@ const HYDROGEN_METRICS: readonly MetricDefinition[] = [
   },
 ];
 
+const ELECTRIC_METRICS: readonly MetricDefinition[] = [
+  {
+    id: 'electric.charge_energy',
+    domain: 'electric',
+    label: '充电量',
+    description: '所选时间和车辆归属范围内，去重导入充电订单的电量之和。',
+    unit: 'kwh',
+    aggregation: 'sum',
+    timeSemantics: 'flow',
+    formula: 'SUM(kwh)',
+    sources: ['bi_ele_charge_record'],
+    dimensions: ['date', 'station', 'region', 'operating-company', 'vehicle-kind', 'customer', 'plate', 'order-status'],
+    drillEntity: 'electric-charge-order',
+  },
+  {
+    id: 'electric.charge_total_fee',
+    domain: 'electric',
+    label: '充电费用',
+    description: '导入账单的充电费用之和；当前数据中等于充电电费与充电服务费之和，零费用订单仍参与统计。',
+    unit: 'cny',
+    aggregation: 'sum',
+    timeSemantics: 'flow',
+    formula: 'SUM(fee)',
+    sources: ['bi_ele_charge_record'],
+    dimensions: ['date', 'station', 'region', 'operating-company', 'vehicle-kind', 'customer', 'plate', 'order-status'],
+    drillEntity: 'electric-charge-order',
+  },
+  {
+    id: 'electric.electricity_fee',
+    domain: 'electric',
+    label: '充电电费',
+    description: '导入账单中充电电费字段 e_fee 之和，不含服务费。',
+    unit: 'cny',
+    aggregation: 'sum',
+    timeSemantics: 'flow',
+    formula: 'SUM(e_fee)',
+    sources: ['bi_ele_charge_record'],
+    dimensions: ['date', 'station', 'region', 'operating-company', 'vehicle-kind', 'customer', 'plate'],
+    drillEntity: 'electric-charge-order',
+  },
+  {
+    id: 'electric.service_fee',
+    domain: 'electric',
+    label: '充电服务费',
+    description: '导入账单中充电服务费字段 service_fee 之和。',
+    unit: 'cny',
+    aggregation: 'sum',
+    timeSemantics: 'flow',
+    formula: 'SUM(service_fee)',
+    sources: ['bi_ele_charge_record'],
+    dimensions: ['date', 'station', 'region', 'operating-company', 'vehicle-kind', 'customer', 'plate'],
+    drillEntity: 'electric-charge-order',
+  },
+  {
+    id: 'electric.blended_cost_intensity',
+    domain: 'electric',
+    label: '综合费用强度',
+    description: '充电费用除以充电量；包含零费用订单，用于观察综合支出强度，不等同于合同电价或单笔订单单价。',
+    unit: 'cny-per-kwh',
+    aggregation: 'weighted-ratio',
+    timeSemantics: 'flow',
+    formula: 'SUM(fee) / NULLIF(SUM(kwh), 0)',
+    sources: ['bi_ele_charge_record'],
+    dimensions: ['date', 'station', 'region', 'operating-company', 'vehicle-kind', 'customer'],
+    drillEntity: 'electric-charge-order',
+  },
+  {
+    id: 'electric.charge_order_count',
+    domain: 'electric',
+    label: '充电订单数',
+    description: '导入充电账单中按订单编号去重后的订单数量。',
+    unit: 'order',
+    aggregation: 'distinct-count',
+    timeSemantics: 'flow',
+    formula: 'COUNT(DISTINCT order_no)',
+    sources: ['bi_ele_charge_record'],
+    dimensions: ['date', 'station', 'region', 'operating-company', 'vehicle-kind', 'customer', 'plate', 'order-status'],
+    drillEntity: 'electric-charge-order',
+  },
+];
+
 export const METRIC_CATALOG: readonly MetricDefinition[] = [
   ...MILEAGE_METRICS,
   ...HYDROGEN_METRICS,
+  ...ELECTRIC_METRICS,
 ];
 
 export function isMetricDomain(value: string): value is MetricDomain {