diff --git a/src/modules/assets/components/FlowAnalysisModal.tsx b/src/modules/assets/components/FlowAnalysisModal.tsx
index 6b9acff..4281de3 100644
--- a/src/modules/assets/components/FlowAnalysisModal.tsx
+++ b/src/modules/assets/components/FlowAnalysisModal.tsx
@@ -48,7 +48,8 @@ function groupRows(rows: FlowDetailItem[], dimensions: Dimension[]): FlowGroup[]
     group.rows.push(row);
     groups.set(key, group);
   }
-  return Array.from(groups.values()).sort((a, b) => b.rows.length - a.rows.length || a.key.localeCompare(b.key, 'zh-CN'));
+  const dateIndex = dimensions.indexOf('date');
+  return Array.from(groups.values()).sort((a, b) => (dateIndex >= 0 ? b.values[dateIndex].localeCompare(a.values[dateIndex]) : 0) || b.rows.length - a.rows.length || a.key.localeCompare(b.key, 'zh-CN'));
 }
 
 export function FlowAnalysisModal(props: FlowAnalysisModalProps) {
@@ -68,7 +69,8 @@ function FlowAnalysisContent({ selectedFlow, selectedFlowDetails, setSelectedFlo
   useDialogFocus(true, dialog, close);
 
   const rows = useMemo(() => selectedFlowDetails.filter(row => matchesType(row, selectedFlow.type)
-    && ('date' in selectedFlow ? row.date === selectedFlow.date : row.date >= selectedFlow.start && row.date <= selectedFlow.end)), [selectedFlowDetails, selectedFlow]);
+    && ('date' in selectedFlow ? row.date === selectedFlow.date : row.date >= selectedFlow.start && row.date <= selectedFlow.end))
+    .sort((a, b) => b.date.localeCompare(a.date) || (b.eventTime || '').localeCompare(a.eventTime || '')), [selectedFlowDetails, selectedFlow]);
   const filterOptions = useMemo(() => Object.fromEntries(DIMENSIONS.map(({ key }) => {
     const eligible = rows.filter(row => DIMENSIONS.every(({ key: other }) => other === key || !filters[other]?.length || filters[other]!.includes(dimensionValue(row, other))));
     const counts = new Map<string, number>();
@@ -79,7 +81,8 @@ function FlowAnalysisContent({ selectedFlow, selectedFlowDetails, setSelectedFlo
   const filteredRows = useMemo(() => rows.filter(row => DIMENSIONS.every(({ key }) => !filters[key]?.length || filters[key]!.includes(dimensionValue(row, key)))), [rows, filters]);
   const groups = useMemo(() => {
     const flat = groupRows(filteredRows, dimensions);
-    return mergeActive ? orderDimensionGroups(flat, dimensions.length, group => group.values, group => group.rows.length) : flat;
+    return mergeActive ? orderDimensionGroups(flat, dimensions.length, group => group.values, group => group.rows.length, dimensions.includes('date') ? 'label' : 'count-desc',
+      (a, b, index) => dimensions[index] === 'date' ? b.values[index].localeCompare(a.values[index]) : a.values[index].localeCompare(b.values[index], 'zh-CN')) : flat;
   }, [filteredRows, dimensions, mergeActive]);
   const detailGroup = useMemo(() => detailKey === null ? null : groups.find(group => group.key === detailKey), [groups, detailKey]);
   const detailRows = detailGroup?.rows ?? EMPTY_FLOW_ROWS;
diff --git a/src/modules/assets/components/overview/FlowStatisticsCard.tsx b/src/modules/assets/components/overview/FlowStatisticsCard.tsx
index 181a85b..9f94d5b 100644
--- a/src/modules/assets/components/overview/FlowStatisticsCard.tsx
+++ b/src/modules/assets/components/overview/FlowStatisticsCard.tsx
@@ -1,4 +1,4 @@
-import { CalendarDays, ChevronDown, Download, Loader2 } from 'lucide-react';
+import { CalendarDays, ChevronDown, Download, ListFilter, Loader2 } from 'lucide-react';
 import { AnimatePresence, motion } from 'motion/react';
 import type { FlowType } from '../../api';
 import { FLOW_META } from '../FlowDetailModal';
@@ -65,18 +65,24 @@ export function FlowStatisticsCard({
         <button
           type="button"
           data-testid="asset-flow-daily-toggle"
+          aria-expanded={flowDailyExpanded}
+          aria-controls="asset-flow-daily-details"
           onClick={() => setFlowDailyExpanded((prev) => !prev)}
-          className="mt-2 flex w-full items-center justify-between rounded-xl border border-slate-100 bg-white px-3 py-1.5 text-[12px] font-black text-slate-500 transition hover:border-blue-100 hover:bg-blue-50/50 hover:text-blue-600"
+          className="mt-3 flex min-h-16 w-full items-center justify-between gap-3 rounded-xl border border-blue-200 bg-blue-50 px-4 py-3 text-left text-blue-700 shadow-sm transition hover:border-blue-400 hover:bg-blue-100 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-blue-500 focus-visible:ring-offset-2"
         >
-          <span>{flowDailyExpanded ? '收起每日明细' : '展开每日明细'}</span>
-          <span className="flex items-center gap-2 text-[11px] text-slate-400">
-            {flowStats?.daily.length ?? 0} 天
-            <ChevronDown size={15} className={`transition-transform ${flowDailyExpanded ? 'rotate-180' : ''}`} />
+          <span className="flex min-w-0 items-center gap-3">
+            <span className="flex h-10 w-10 shrink-0 items-center justify-center rounded-xl bg-white text-blue-600"><ListFilter size={21} /></span>
+            <span><span className="block text-sm font-black">{flowDailyExpanded ? '收起每日明细' : '展开每日明细'}</span><span className="mt-0.5 block text-[11px] font-medium text-blue-600">查看每日交还车数量 · 最新日期在前</span></span>
+          </span>
+          <span className="flex shrink-0 items-center gap-2 text-xs font-bold">
+            <span className="rounded-lg bg-white px-2 py-1">{flowStats?.daily.length ?? 0} 天</span>
+            <ChevronDown size={20} className={`transition-transform ${flowDailyExpanded ? 'rotate-180' : ''}`} />
           </span>
         </button>
         <AnimatePresence initial={false}>
           {flowDailyExpanded && (
             <motion.div
+              id="asset-flow-daily-details"
               initial={{ height: 0, opacity: 0 }}
               animate={{ height: 'auto', opacity: 1 }}
               exit={{ height: 0, opacity: 0 }}