diff --git a/src/modules/energy/HydrogenDaily.tsx b/src/modules/energy/HydrogenDaily.tsx
index 21c50cc..68fd432 100644
--- a/src/modules/energy/HydrogenDaily.tsx
+++ b/src/modules/energy/HydrogenDaily.tsx
@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import { Building2, ChevronRight, Fuel, Plug, ReceiptText, TrendingUp, Truck, UserRound, X } from 'lucide-react';
 import { motion, AnimatePresence } from 'motion/react';
 import { BarChart, Bar, XAxis, YAxis, ResponsiveContainer, Cell, Tooltip, ReferenceLine } from 'recharts';
@@ -29,6 +29,8 @@ const VEHICLE_SCOPE_OPTIONS: readonly AnalysisScopeOption<CustomerType>[] = [
   { id: 'external', label: '外部车辆' },
 ];
 
+const HYDROGEN_ORDERS_ID = 'hydrogen-orders';
+
 export default function HydrogenDaily() {
   const [drillContext, setDrillContext] = useState<HydrogenDrillContext>(() => (
     parseHydrogenDrillContext(window.location.search)
@@ -48,6 +50,7 @@ export default function HydrogenDaily() {
   const [rows, setRows] = useState<HydrogenDailyRow[] | null>(null);
   const [error, setError] = useState<string | null>(null);
   const [retryKey, setRetryKey] = useState(0);
+  const orderTriggerRef = useRef<HTMLElement | SVGElement | null>(null);
 
   const effectiveRange = useMemo(() => normalizeDateRange(dateRange.start, dateRange.end), [dateRange.start, dateRange.end]);
   const selectedStationId = drillContext.level === 'station' ? drillContext.stationId : undefined;
@@ -159,6 +162,10 @@ export default function HydrogenDaily() {
   };
 
   const openOrders = (date: string) => {
+    const activeElement = document.activeElement;
+    if (activeElement instanceof HTMLElement || activeElement instanceof SVGElement) {
+      orderTriggerRef.current = activeElement;
+    }
     commitDrillContext({
       ...drillContext,
       vehicleScope,
@@ -166,7 +173,15 @@ export default function HydrogenDaily() {
       endDate: effectiveRange.end,
       selectedDate: date,
       orderPage: undefined,
-    }, 'push');
+    }, selectedDate === date ? 'replace' : 'push');
+    window.requestAnimationFrame(() => {
+      const orders = document.getElementById(HYDROGEN_ORDERS_ID);
+      orders?.focus({ preventScroll: true });
+      orders?.scrollIntoView({
+        behavior: window.matchMedia('(prefers-reduced-motion: reduce)').matches ? 'auto' : 'smooth',
+        block: 'start',
+      });
+    });
   };
 
   const closeOrders = () => {
@@ -178,6 +193,7 @@ export default function HydrogenDaily() {
       selectedDate: undefined,
       orderPage: undefined,
     }, 'replace');
+    window.requestAnimationFrame(() => orderTriggerRef.current?.focus());
   };
 
   const changeOrderPage = useCallback((page: number, mode: 'push' | 'replace') => {
@@ -375,7 +391,8 @@ export default function HydrogenDaily() {
                     className={item.totalKg > 0 ? 'cursor-pointer outline-none focus:stroke-blue-700 focus:stroke-2' : undefined}
                     role={item.totalKg > 0 ? 'button' : undefined}
                     tabIndex={item.totalKg > 0 ? 0 : -1}
-                    aria-pressed={item.totalKg > 0 ? selectedDate === item.date : undefined}
+                    aria-expanded={item.totalKg > 0 ? selectedDate === item.date : undefined}
+                    aria-controls={item.totalKg > 0 ? HYDROGEN_ORDERS_ID : undefined}
                     aria-label={`${item.date}，加氢量 ${item.totalKg.toLocaleString('zh-CN', { maximumFractionDigits: 2 })} Kg${item.totalKg > 0 ? `，查看${orderScopeLabel}加氢订单` : '，无可下钻订单'}`}
                     onClick={item.totalKg > 0 ? () => openOrders(item.date) : undefined}
                     onKeyDown={item.totalKg > 0
@@ -457,6 +474,8 @@ export default function HydrogenDaily() {
                     disabled={r.totalKg <= 0}
                     className="ml-1 flex h-7 w-7 shrink-0 items-center justify-center rounded-lg text-slate-400 hover:bg-blue-100 hover:text-blue-700 disabled:cursor-not-allowed disabled:opacity-25"
                     aria-label={`查看 ${r.date} 加氢订单`}
+                    aria-expanded={selectedDate === r.date}
+                    aria-controls={HYDROGEN_ORDERS_ID}
                     title="查看当日订单"
                   >
                     <ReceiptText size={13} />
diff --git a/src/modules/energy/HydrogenOrders.tsx b/src/modules/energy/HydrogenOrders.tsx
index 9b5bb48..d6732a8 100644
--- a/src/modules/energy/HydrogenOrders.tsx
+++ b/src/modules/energy/HydrogenOrders.tsx
@@ -73,7 +73,11 @@ export default function HydrogenOrders({
     : '';
 
   return (
-    <section className="overflow-hidden rounded-lg border border-blue-100 bg-white shadow-sm">
+    <section
+      id="hydrogen-orders"
+      tabIndex={-1}
+      className="scroll-mt-3 overflow-hidden rounded-lg border border-blue-100 bg-white shadow-sm outline-none focus-visible:ring-2 focus-visible:ring-blue-500 focus-visible:ring-offset-2"
+    >
       <header className="flex items-start justify-between gap-3 border-b border-blue-100 bg-blue-50/60 px-3 py-3 md:px-4">
         <div className="min-w-0">
           <div className="flex items-center gap-2 text-xs font-black text-blue-800">