diff --git a/vehicle-data-platform/apps/web/src/v2/pages/StatisticsPage.test.tsx b/vehicle-data-platform/apps/web/src/v2/pages/StatisticsPage.test.tsx
index 20ddc3ae..51dbc372 100644
--- a/vehicle-data-platform/apps/web/src/v2/pages/StatisticsPage.test.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/pages/StatisticsPage.test.tsx
@@ -279,6 +279,7 @@ test('uses a compact bottom sheet for mileage source strategy on mobile', async
   prepareData();
   renderPage('/statistics?vins=LTEST000000000001&dateFrom=2026-07-13&dateTo=2026-07-14');
 
+  fireEvent.click(screen.getByRole('button', { name: /修改里程范围/ }));
   fireEvent.click(screen.getByRole('button', { name: /数据源/ }));
 
   expect(screen.getByRole('dialog', { name: '数据源策略配置' })).toBeInTheDocument();
@@ -286,6 +287,33 @@ test('uses a compact bottom sheet for mileage source strategy on mobile', async
   expect(document.querySelector('.v2-mileage-source-sidesheet .semi-sidesheet-inner')).toHaveStyle({ height: 'min(58dvh, 500px)' });
 });
 
+test('opens mobile mileage filters in a bottom task sheet without displacing the data canvas', async () => {
+  layout.mobile = true;
+  prepareData();
+  const view = renderPage('/statistics?vins=LTEST000000000001&dateFrom=2026-07-13&dateTo=2026-07-14');
+
+  expect(await screen.findByText('车辆每日里程')).toBeInTheDocument();
+  expect(view.container.querySelector('.v2-mileage-mobile-discovery')).toBeInTheDocument();
+  expect(view.container.querySelector('.v2-mileage-query-panel')).not.toBeInTheDocument();
+  expect(screen.queryByRole('dialog', { name: '里程范围筛选' })).not.toBeInTheDocument();
+  expect(screen.queryByRole('textbox', { name: '搜索车牌' })).not.toBeInTheDocument();
+
+  fireEvent.click(screen.getByRole('button', { name: /修改里程范围/ }));
+
+  expect(await screen.findByRole('dialog', { name: '里程范围筛选' })).toBeInTheDocument();
+  expect(document.querySelector('.v2-mileage-filter-sidesheet')).toHaveClass('semi-sidesheet-bottom');
+  expect(document.querySelector('.v2-mileage-filter-sidesheet .semi-sidesheet-inner')).toHaveStyle({ height: 'min(82dvh, 690px)' });
+  expect(screen.getByRole('textbox', { name: '搜索车牌' })).toBeInTheDocument();
+  expect(screen.getByRole('button', { name: '应用并查询' })).toBeInTheDocument();
+  expect(screen.getByRole('button', { name: '关闭里程范围筛选' })).toBeInTheDocument();
+
+  fireEvent.click(screen.getByRole('button', { name: '关闭里程范围筛选' }));
+
+  expect(screen.getByRole('dialog', { name: '里程范围筛选' })).toHaveClass('semi-sidesheet-animation-content_hide_bottom');
+  expect(screen.getByText('车辆每日里程')).toBeInTheDocument();
+  expect(screen.getByRole('button', { name: /修改里程范围/ })).toHaveAttribute('aria-expanded', 'false');
+});
+
 test('paginates all unique vehicles when no license plate is selected', async () => {
   prepareData();
   const firstPage = Array.from({ length: 20 }, (_, index) => ({ vin: `VIN${String(index + 1).padStart(14, '0')}`, plate: `粤A${String(index + 1).padStart(5, '0')}` }));
diff --git a/vehicle-data-platform/apps/web/src/v2/pages/StatisticsPage.tsx b/vehicle-data-platform/apps/web/src/v2/pages/StatisticsPage.tsx
index 225b3465..0459cbd4 100644
--- a/vehicle-data-platform/apps/web/src/v2/pages/StatisticsPage.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/pages/StatisticsPage.tsx
@@ -9,6 +9,7 @@ import { createMileageExportStream, type MileageExportStream } from '../domain/m
 import { formatZhNumber } from '../domain/formatters';
 import { InlineError, PanelEmpty, PanelLoading } from '../shared/AsyncState';
 import { MonitorReturnBar } from '../shared/MonitorReturnBar';
+import { MobileFilterToggle } from '../shared/MobileFilterToggle';
 import { TablePagination } from '../shared/TablePagination';
 import { VehicleCandidateList } from '../shared/VehicleCandidateList';
 import { mergeVehicleCandidates } from '../shared/vehicleCandidates';
@@ -354,6 +355,7 @@ const MileageTable = memo(function MileageTable({ rows, dates, scrollRef }: { ro
 export default function StatisticsPage() {
   const [searchParams, setSearchParams] = useSearchParams();
   const monitorReturn = monitorReturnFromParams(searchParams);
+  const mobileLayout = useMobileLayout();
   const [draft, setDraft] = useState<Criteria>(() => initialCriteria(searchParams));
   const [criteria, setCriteria] = useState<Criteria>(() => initialCriteria(searchParams));
   const [page, setPage] = useState(1);
@@ -362,10 +364,12 @@ export default function StatisticsPage() {
   const [exportProgress, setExportProgress] = useState<ExportProgress>();
   const [validationError, setValidationError] = useState('');
   const [filtersCollapsed, setFiltersCollapsed] = useState(true);
+  const mobileFiltersOpen = mobileLayout && !filtersCollapsed;
   const exportControllerRef = useRef<AbortController | null>(null);
   const pageRef = useRef<HTMLDivElement>(null);
   const tableScrollRef = useRef<HTMLDivElement>(null);
   const mountedRef = useRef(true);
+  useSideSheetA11y(mobileFiltersOpen, '.v2-mileage-filter-sidesheet', 'v2-mileage-filter-panel', '里程范围筛选', '关闭里程范围筛选');
   useEffect(() => {
     mountedRef.current = true;
     return () => {
@@ -435,14 +439,32 @@ export default function StatisticsPage() {
   }), [displayVehicles, mileageByVin, rankingByVin]);
   const totalVehicles = hasVehicles ? criteria.vehicles.length : fleetVehicles.data?.total ?? 0;
   const totalPages = Math.max(1, Math.ceil(totalVehicles / PAGE_SIZE));
-  const submit = (event: FormEvent) => {
-    event.preventDefault();
+  const applyDraft = () => {
     const error = mileageDateRangeError(draft);
     setValidationError(error);
     if (error) return;
     setPage(1); setExportFeedback(''); setCriteria(draft); setSearchParams(preserveMonitorReturn(mileageParams(draft, -1), monitorReturn), { replace: true }); setFiltersCollapsed(true);
   };
-  const setRange = (range: { dateFrom: string; dateTo: string }) => { const next = { ...draft, ...range }; setPage(1); setExportFeedback(''); setValidationError(''); setDraft(next); setCriteria(next); setSearchParams(preserveMonitorReturn(mileageParams(next, -1), monitorReturn), { replace: true }); };
+  const submit = (event: FormEvent) => { event.preventDefault(); applyDraft(); };
+  const setRange = (range: { dateFrom: string; dateTo: string }) => { const next = { ...draft, ...range }; setPage(1); setExportFeedback(''); setValidationError(''); setDraft(next); setCriteria(next); setSearchParams(preserveMonitorReturn(mileageParams(next, -1), monitorReturn), { replace: true }); setFiltersCollapsed(true); };
+  const closeMobileFilters = () => {
+    setDraft(criteria);
+    setValidationError('');
+    setFiltersCollapsed(true);
+  };
+  const toggleFilters = () => {
+    if (!mobileLayout) {
+      setFiltersCollapsed((value) => !value);
+      return;
+    }
+    if (mobileFiltersOpen) {
+      closeMobileFilters();
+      return;
+    }
+    setDraft(criteria);
+    setValidationError('');
+    setFiltersCollapsed(false);
+  };
   const todayRange = defaultWindow(1);
   const yesterdayRange = defaultWindow(1, 1);
   const sevenDayRange = defaultWindow(7);
@@ -533,6 +555,17 @@ export default function StatisticsPage() {
     exportControllerRef.current.abort();
   };
 
+  const rangeSummary = criteria.vehicles.length ? `已选 ${criteria.vehicles.length} 辆 · ${inclusiveDays(criteria.dateFrom, criteria.dateTo)} 天` : `全部车辆 · ${inclusiveDays(criteria.dateFrom, criteria.dateTo)} 天`;
+  const filterForm = <form className="v2-mileage-filter" onSubmit={submit}>
+    <VehicleMultiSelect value={draft.vehicles} onChange={(vehicles) => setDraft((current) => ({ ...current, vehicles }))} />
+    <label><span>开始日期</span><Input aria-label="开始日期" type="date" value={draft.dateFrom} max={draft.dateTo} onChange={(value) => setDraft((current) => ({ ...current, dateFrom: value }))} /></label>
+    <label><span>结束日期</span><Input aria-label="结束日期" type="date" value={draft.dateTo} min={draft.dateFrom} onChange={(value) => setDraft((current) => ({ ...current, dateTo: value }))} /></label>
+    <Button className="v2-primary-button v2-mileage-inline-submit" theme="solid" htmlType="submit">查询</Button>
+    <SourceStrategy value={draft.sources} onChange={(sources) => setDraft((current) => ({ ...current, sources }))} />
+    <div className="v2-mileage-ranges"><span>快捷范围</span><Button theme={isSameRange(draft, todayRange) ? 'solid' : 'light'} onClick={() => setRange(todayRange)}>今天</Button><Button theme={isSameRange(draft, yesterdayRange) ? 'solid' : 'light'} onClick={() => setRange(yesterdayRange)}>昨天</Button><Button theme={isSameRange(draft, sevenDayRange) ? 'solid' : 'light'} onClick={() => setRange(sevenDayRange)}>近 7 天</Button><Button theme={isSameRange(draft, thirtyDayRange) ? 'solid' : 'light'} onClick={() => setRange(thirtyDayRange)}>近 30 天</Button><Button theme={isSameRange(draft, ninetyDayRange) ? 'solid' : 'light'} onClick={() => setRange(ninetyDayRange)}>近 90 天</Button></div>
+  </form>;
+  const filterValidation = validationError || criteriaError ? <p className="v2-mileage-validation" role="alert">{validationError || criteriaError}</p> : null;
+
   return <div className="v2-mileage-page" ref={pageRef}>
     <MonitorReturnBar />
     <div className="v2-mileage-discovery-shell">
@@ -545,28 +578,44 @@ export default function StatisticsPage() {
         statusColor={criteria.vehicles.length ? 'blue' : 'grey'}
         meta={<span>{criteria.sources.find((source) => source.enabled)?.protocol ?? '未配置'} 优先</span>}
       />
-      <WorkspaceFilterPanel
+      {mobileLayout ? <div className="v2-mileage-mobile-discovery">
+        <MobileFilterToggle
+          title="里程范围"
+          summary={rangeSummary}
+          expanded={mobileFiltersOpen}
+          expandedLabel="关闭"
+          collapsedLabel="修改"
+          onToggle={toggleFilters}
+        />
+        <SummaryRail data={statistics.data} criteria={criteria} fleetTotal={fleetVehicles.data?.total} loading={statistics.isLoading} />
+        <SideSheet
+          className="v2-mileage-filter-sidesheet"
+          visible={mobileFiltersOpen}
+          placement="bottom"
+          height="min(82dvh, 690px)"
+          aria-label="里程范围筛选"
+          title={<div className="v2-mileage-filter-title"><strong>里程范围</strong><span>选择车辆、自然日与数据源</span></div>}
+          onCancel={closeMobileFilters}
+          footer={<div className="v2-mileage-filter-footer"><span>应用后刷新里程统计与车辆矩阵</span><Button theme="solid" onClick={applyDraft}>应用并查询</Button></div>}
+        >
+          {filterForm}
+          {filterValidation}
+        </SideSheet>
+      </div> : <WorkspaceFilterPanel
         className="v2-mileage-query-panel"
         title="里程范围"
         description="车牌、自然日与里程数据源策略"
-        mobileSummary={criteria.vehicles.length ? `已选 ${criteria.vehicles.length} 辆 · ${inclusiveDays(criteria.dateFrom, criteria.dateTo)} 天` : `全部车辆 · ${inclusiveDays(criteria.dateFrom, criteria.dateTo)} 天`}
+        mobileSummary={rangeSummary}
         expanded={!filtersCollapsed}
         status={`${criteria.vehicles.length ? `${criteria.vehicles.length} 辆` : '全部授权车辆'} · ${inclusiveDays(criteria.dateFrom, criteria.dateTo)} 天`}
         statusColor={criteria.vehicles.length ? 'blue' : 'grey'}
         collapsedLabel="修改"
-        onToggle={() => setFiltersCollapsed((value) => !value)}
+        onToggle={toggleFilters}
       >
-        <form className={`v2-mileage-filter${filtersCollapsed ? ' is-mobile-collapsed' : ''}`} onSubmit={submit}>
-          <VehicleMultiSelect value={draft.vehicles} onChange={(vehicles) => setDraft((current) => ({ ...current, vehicles }))} />
-          <label><span>开始日期</span><Input aria-label="开始日期" type="date" value={draft.dateFrom} max={draft.dateTo} onChange={(value) => setDraft((current) => ({ ...current, dateFrom: value }))} /></label>
-          <label><span>结束日期</span><Input aria-label="结束日期" type="date" value={draft.dateTo} min={draft.dateFrom} onChange={(value) => setDraft((current) => ({ ...current, dateTo: value }))} /></label>
-          <Button className="v2-primary-button" theme="solid" htmlType="submit">查询</Button>
-          <SourceStrategy value={draft.sources} onChange={(sources) => setDraft((current) => ({ ...current, sources }))} />
-          <div className="v2-mileage-ranges"><span>快捷范围</span><Button theme={isSameRange(draft, todayRange) ? 'solid' : 'light'} onClick={() => setRange(todayRange)}>今天</Button><Button theme={isSameRange(draft, yesterdayRange) ? 'solid' : 'light'} onClick={() => setRange(yesterdayRange)}>昨天</Button><Button theme={isSameRange(draft, sevenDayRange) ? 'solid' : 'light'} onClick={() => setRange(sevenDayRange)}>近 7 天</Button><Button theme={isSameRange(draft, thirtyDayRange) ? 'solid' : 'light'} onClick={() => setRange(thirtyDayRange)}>近 30 天</Button><Button theme={isSameRange(draft, ninetyDayRange) ? 'solid' : 'light'} onClick={() => setRange(ninetyDayRange)}>近 90 天</Button></div>
-        </form>
-        {validationError || criteriaError ? <p className="v2-mileage-validation" role="alert">{validationError || criteriaError}</p> : null}
+        {filterForm}
+        {filterValidation}
         <SummaryRail data={statistics.data} criteria={criteria} fleetTotal={fleetVehicles.data?.total} loading={statistics.isLoading} />
-      </WorkspaceFilterPanel>
+      </WorkspaceFilterPanel>}
     </div>
     {statistics.isError || mileage.isError || fleetVehicles.isError ? <InlineError message={(statistics.error ?? mileage.error ?? fleetVehicles.error) instanceof Error ? (statistics.error ?? mileage.error ?? fleetVehicles.error as Error).message : '里程数据加载失败'} onRetry={() => { statistics.refetch(); mileage.refetch(); if (!hasVehicles) fleetVehicles.refetch(); }} /> : null}
     <Card className="v2-mileage-results" bodyStyle={{ padding: 0 }}>
diff --git a/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts b/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts
index 42846d72..e736d474 100644
--- a/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts
+++ b/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts
@@ -365,6 +365,9 @@ describe('V2 production entry', () => {
     expect(corePageSources.StatisticsPage).toContain('<Tag');
     expect(corePageSources.StatisticsPage).toContain('<SideSheet');
     expect(corePageSources.StatisticsPage).toContain('v2-mileage-source-sidesheet');
+    expect(corePageSources.StatisticsPage).toContain('className="v2-mileage-filter-sidesheet"');
+    expect(corePageSources.StatisticsPage).toContain('<MobileFilterToggle');
+    expect(corePageSources.StatisticsPage).toContain('placement="bottom"');
     expect(corePageSources.StatisticsPage).not.toContain('v2-mileage-source-popover');
     expect(corePageSources.StatisticsPage).toContain('<Table className="v2-mileage-table"');
     expect(v2Styles).toContain('.v2-mileage-table.semi-table-wrapper :is(.semi-table-row-head,.semi-table-row-cell).is-plate');
diff --git a/vehicle-data-platform/apps/web/src/v2/styles/v2.css b/vehicle-data-platform/apps/web/src/v2/styles/v2.css
index 045a88d9..dd6ef0d7 100644
--- a/vehicle-data-platform/apps/web/src/v2/styles/v2.css
+++ b/vehicle-data-platform/apps/web/src/v2/styles/v2.css
@@ -11563,3 +11563,128 @@ button, a { -webkit-tap-highlight-color: transparent; }
     font-size: 11px;
   }
 }
+
+/* Semi UI mileage workflow: keep the mobile data canvas stable while filters open. */
+.v2-mileage-filter-title {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 3px;
+}
+.v2-mileage-filter-title strong {
+  color: #213149;
+  font-size: 15px;
+  line-height: 1.25;
+}
+.v2-mileage-filter-title span {
+  color: #7c8b9f;
+  font-size: 10px;
+  font-weight: 500;
+}
+.v2-mileage-filter-footer {
+  display: flex;
+  width: 100%;
+  min-width: 0;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+}
+.v2-mileage-filter-footer > span {
+  color: #7b899b;
+  font-size: 10px;
+}
+.v2-mileage-filter-footer > .semi-button {
+  min-width: 118px;
+  min-height: 38px;
+  border-radius: 8px;
+  font-weight: 700;
+}
+
+@media (max-width: 680px) {
+  .v2-mileage-mobile-discovery {
+    display: grid;
+    min-width: 0;
+    flex: 0 0 auto;
+    gap: 7px;
+  }
+  .v2-mileage-mobile-discovery > .v2-mobile-filter-toggle.semi-button {
+    min-height: 58px;
+    margin: 0;
+  }
+  .v2-mileage-filter-sidesheet .semi-sidesheet-inner {
+    width: 100vw !important;
+    overflow: hidden;
+    border-radius: 18px 18px 0 0;
+    background: #f4f7fb;
+    box-shadow: 0 -20px 56px rgba(25, 45, 72, .2);
+  }
+  .v2-mileage-filter-sidesheet .semi-sidesheet-header {
+    min-height: 68px;
+    border-bottom: 1px solid #dfe7f0;
+    background: rgba(255, 255, 255, .98);
+    padding: 11px 14px;
+  }
+  .v2-mileage-filter-sidesheet .semi-sidesheet-body {
+    overflow: auto;
+    background: #f4f7fb;
+    padding: 12px;
+    overscroll-behavior: contain;
+  }
+  .v2-mileage-filter-sidesheet .semi-sidesheet-footer {
+    border-top: 1px solid #dfe7f0;
+    background: rgba(255, 255, 255, .98);
+    padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
+  }
+  .v2-mileage-filter-sidesheet .v2-mileage-filter {
+    display: grid !important;
+    min-height: 0;
+    grid-template-columns: 1fr;
+    gap: 12px;
+    border: 1px solid #dfe7f0;
+    border-radius: 12px;
+    background: #fff;
+    padding: 12px;
+    box-shadow: 0 8px 24px rgba(31, 53, 80, .06);
+  }
+  .v2-mileage-filter-sidesheet .v2-mileage-filter > label {
+    gap: 6px;
+    color: #5f7188;
+    font-size: 11px;
+  }
+  .v2-mileage-filter-sidesheet .v2-mileage-filter > label > .semi-input-wrapper,
+  .v2-mileage-filter-sidesheet .v2-mileage-source-trigger.semi-button {
+    height: 44px;
+    min-height: 44px;
+    border-radius: 9px;
+  }
+  .v2-mileage-filter-sidesheet .v2-mileage-selection > .semi-input-wrapper .semi-input,
+  .v2-mileage-filter-sidesheet .v2-mileage-filter > label > .semi-input-wrapper .semi-input {
+    font-size: 14px;
+  }
+  .v2-mileage-filter-sidesheet .v2-mileage-inline-submit {
+    display: none;
+  }
+  .v2-mileage-filter-sidesheet .v2-mileage-source-strategy {
+    width: 100%;
+  }
+  .v2-mileage-filter-sidesheet .v2-mileage-ranges {
+    height: 44px;
+    order: 5;
+    border: 1px solid #e0e7f0;
+    border-radius: 9px;
+    background: #f4f7fb;
+    padding: 4px;
+  }
+  .v2-mileage-filter-sidesheet .v2-mileage-ranges .semi-button {
+    height: 34px;
+    border-radius: 7px;
+    font-size: 10px;
+  }
+  .v2-mileage-filter-sidesheet .v2-mileage-validation {
+    margin: 9px 2px 0;
+  }
+  .v2-mileage-filter-footer > span {
+    max-width: 150px;
+    line-height: 1.4;
+  }
+}