diff --git a/src/modules/energy/HydrogenDaily.tsx b/src/modules/energy/HydrogenDaily.tsx
index 1642789..c4ceefa 100644
--- a/src/modules/energy/HydrogenDaily.tsx
+++ b/src/modules/energy/HydrogenDaily.tsx
@@ -58,6 +58,7 @@ export default function HydrogenDaily() {
     ? drillContext.customerName
     : undefined;
   const selectedDate = drillContext.selectedDate;
+  const selectedDailyRow = rows?.find(row => row.date === selectedDate);
 
   const commitDrillContext = useCallback((next: HydrogenDrillContext, mode: 'push' | 'replace') => {
     const url = buildHydrogenDrillUrl(window.location, next);
@@ -386,6 +387,7 @@ export default function HydrogenDaily() {
       {selectedDate && (
         <HydrogenOrders
           date={selectedDate}
+          dailyRow={selectedDailyRow}
           vehicleScope={vehicleScope}
           stationId={selectedStationId}
           customerName={selectedCustomerName}
diff --git a/src/modules/energy/HydrogenOrders.tsx b/src/modules/energy/HydrogenOrders.tsx
index c0f2ab3..44fd066 100644
--- a/src/modules/energy/HydrogenOrders.tsx
+++ b/src/modules/energy/HydrogenOrders.tsx
@@ -1,9 +1,10 @@
 import { useEffect, useState } from 'react';
-import { ChevronLeft, ChevronRight, ReceiptText, X } from 'lucide-react';
+import { CheckCircle2, ChevronLeft, ChevronRight, ReceiptText, TriangleAlert, X } from 'lucide-react';
 import Blur from '../../components/Blur';
 import { EmptyState, ErrorState, LoadingState } from '../../components/ui/surface';
 import { fetchHydrogenOrders } from './api';
-import type { CustomerType, HydrogenOrderResponse } from './types';
+import type { CustomerType, HydrogenDailyRow, HydrogenOrderResponse } from './types';
+import { reconcileHydrogenDaily } from './hydrogen-reconciliation';
 
 function fmtMoney(value: number): string {
   return `¥${value.toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })}`;
@@ -11,12 +12,14 @@ function fmtMoney(value: number): string {
 
 export default function HydrogenOrders({
   date,
+  dailyRow,
   vehicleScope,
   stationId,
   customerName,
   onClose,
 }: {
   date: string;
+  dailyRow?: HydrogenDailyRow;
   vehicleScope: CustomerType;
   stationId?: number;
   customerName?: string;
@@ -52,6 +55,16 @@ export default function HydrogenOrders({
     : stationId !== undefined
       ? `站点 #${stationId}`
       : vehicleScope === 'external' ? '外部车辆' : '羚牛车辆';
+  const reconciliation = data && dailyRow
+    ? reconcileHydrogenDaily(dailyRow, data, vehicleScope, stationId, customerName)
+    : null;
+  const grainDifferences = reconciliation
+    ? [
+        !reconciliation.dateMatches && '日期',
+        !reconciliation.scopeMatches && '车辆范围',
+        !reconciliation.entityMatches && '站点/客户范围',
+      ].filter(Boolean).join('、')
+    : '';
 
   return (
     <section className="overflow-hidden rounded-lg border border-blue-100 bg-white shadow-sm">
@@ -74,11 +87,32 @@ export default function HydrogenOrders({
       </header>
 
       {data ? (
-        <div className="grid grid-cols-3 gap-2 border-b border-slate-100 bg-slate-50 px-3 py-2 text-[10px] font-bold md:px-4">
-          <div className="min-w-0"><span className="text-slate-400">订单 / 加氢量</span><div className="mt-1 break-words text-slate-700">{data.recordCount} 笔 · {data.totalKg.toLocaleString('zh-CN')} Kg</div></div>
-          <div className="min-w-0"><span className="text-slate-400">采购成本</span><div className="mt-1 break-all text-slate-700">{fmtMoney(data.totalCost)}</div></div>
-          <div className="min-w-0"><span className="text-slate-400">客户收入</span><div className="mt-1 break-all text-emerald-700">{fmtMoney(data.totalRevenue)}</div></div>
-        </div>
+        <>
+          <div className="grid grid-cols-3 gap-2 border-b border-slate-100 bg-slate-50 px-3 py-2 text-[10px] font-bold md:px-4">
+            <div className="min-w-0"><span className="text-slate-400">订单 / 加氢量</span><div className="mt-1 break-words text-slate-700">{data.recordCount} 笔 · {data.totalKg.toLocaleString('zh-CN')} Kg</div></div>
+            <div className="min-w-0"><span className="text-slate-400">采购成本</span><div className="mt-1 break-all text-slate-700">{fmtMoney(data.totalCost)}</div></div>
+            <div className="min-w-0"><span className="text-slate-400">客户收入</span><div className="mt-1 break-all text-emerald-700">{fmtMoney(data.totalRevenue)}</div></div>
+          </div>
+          {reconciliation && (
+            <div
+              role={reconciliation.matches ? 'status' : 'alert'}
+              className={`flex items-start gap-2 border-b px-3 py-2 text-[10px] font-bold md:px-4 ${
+                reconciliation.matches
+                  ? 'border-emerald-100 bg-emerald-50 text-emerald-700'
+                  : 'border-amber-200 bg-amber-50 text-amber-800'
+              }`}
+            >
+              {reconciliation.matches
+                ? <CheckCircle2 size={14} className="mt-0.5 shrink-0" />
+                : <TriangleAlert size={14} className="mt-0.5 shrink-0" />}
+              <span>
+                {reconciliation.matches
+                  ? `口径核对通过：日汇总与 ${data.recordCount} 笔订单全量加氢量一致`
+                  : `口径存在差异：加氢量 ${reconciliation.kgDifference >= 0 ? '+' : ''}${reconciliation.kgDifference.toFixed(2)} Kg${grainDifferences ? ` · ${grainDifferences}不一致` : ''}`}
+              </span>
+            </div>
+          )}
+        </>
       ) : null}
 
       {error ? (
diff --git a/src/modules/energy/hydrogen-reconciliation.test.ts b/src/modules/energy/hydrogen-reconciliation.test.ts
new file mode 100644
index 0000000..b039d75
--- /dev/null
+++ b/src/modules/energy/hydrogen-reconciliation.test.ts
@@ -0,0 +1,67 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { reconcileHydrogenDaily } from './hydrogen-reconciliation.js';
+import type { HydrogenDailyRow, HydrogenOrderResponse } from './types.js';
+
+const daily: HydrogenDailyRow = {
+  date: '2026-07-01',
+  totalKg: 123.45,
+  chainPct: 0,
+  customerType: 'lingniu',
+  stations: [],
+};
+
+const orders: HydrogenOrderResponse = {
+  date: '2026-07-01',
+  vehicleScope: 'lingniu',
+  stationId: 18,
+  customerName: null,
+  page: 1,
+  limit: 20,
+  recordCount: 3,
+  totalPages: 1,
+  totalKg: 123.45,
+  totalCost: 1000,
+  totalRevenue: 1200,
+  items: [],
+};
+
+test('matches daily hydrogen totals at the same date, scope, and entity grain', () => {
+  assert.deepEqual(reconcileHydrogenDaily(daily, orders, 'lingniu', 18), {
+    matches: true,
+    dateMatches: true,
+    scopeMatches: true,
+    entityMatches: true,
+    kgDifference: 0,
+  });
+});
+
+test('reports amount and filter-grain differences independently', () => {
+  const result = reconcileHydrogenDaily(
+    daily,
+    {
+      ...orders,
+      date: '2026-07-02',
+      vehicleScope: 'external',
+      stationId: null,
+      customerName: '武汉客户',
+      totalKg: 123.44,
+    },
+    'lingniu',
+    18,
+  );
+
+  assert.equal(result.matches, false);
+  assert.equal(result.dateMatches, false);
+  assert.equal(result.scopeMatches, false);
+  assert.equal(result.entityMatches, false);
+  assert.equal(result.kgDifference, -0.01);
+});
+
+test('matches an exact customer drill without requiring a station', () => {
+  const customerOrders = { ...orders, stationId: null, customerName: '武汉客户' };
+  assert.equal(
+    reconcileHydrogenDaily(daily, customerOrders, 'lingniu', undefined, '武汉客户').matches,
+    true,
+  );
+});
diff --git a/src/modules/energy/hydrogen-reconciliation.ts b/src/modules/energy/hydrogen-reconciliation.ts
new file mode 100644
index 0000000..83a2607
--- /dev/null
+++ b/src/modules/energy/hydrogen-reconciliation.ts
@@ -0,0 +1,35 @@
+import type { CustomerType, HydrogenDailyRow, HydrogenOrderResponse } from './types';
+
+export interface HydrogenDailyReconciliation {
+  matches: boolean;
+  dateMatches: boolean;
+  scopeMatches: boolean;
+  entityMatches: boolean;
+  kgDifference: number;
+}
+
+function hundredths(value: number): number {
+  return Math.round(value * 100);
+}
+
+export function reconcileHydrogenDaily(
+  daily: HydrogenDailyRow,
+  orders: HydrogenOrderResponse,
+  expectedScope: CustomerType,
+  expectedStationId?: number,
+  expectedCustomerName?: string,
+): HydrogenDailyReconciliation {
+  const dateMatches = daily.date === orders.date;
+  const scopeMatches = expectedScope === orders.vehicleScope;
+  const entityMatches = (expectedStationId ?? null) === orders.stationId
+    && (expectedCustomerName ?? null) === orders.customerName;
+  const kgDifferenceInHundredths = hundredths(orders.totalKg) - hundredths(daily.totalKg);
+
+  return {
+    matches: dateMatches && scopeMatches && entityMatches && kgDifferenceInHundredths === 0,
+    dateMatches,
+    scopeMatches,
+    entityMatches,
+    kgDifference: kgDifferenceInHundredths / 100,
+  };
+}