diff --git a/vehicle-data-platform/apps/web/src/v2/pages/AlertsPage.test.tsx b/vehicle-data-platform/apps/web/src/v2/pages/AlertsPage.test.tsx
index 1f2587de..b7ea6067 100644
--- a/vehicle-data-platform/apps/web/src/v2/pages/AlertsPage.test.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/pages/AlertsPage.test.tsx
@@ -150,7 +150,7 @@ test('clears old alert rows and inspector evidence when the event scope changes'
   expect(screen.getByLabelText('告警中心工作区').querySelector('.v2-workspace-command-icon.semi-avatar')).toBeInTheDocument();
   expect(screen.getByRole('heading', { level: 5, name: '告警处置工作台' })).toBeInTheDocument();
   expect(screen.getByText('核验事件证据、治理规则并追踪通知状态')).toBeInTheDocument();
-  expect(screen.getByText('可处置事件')).toBeInTheDocument();
+  expect(screen.getByText('具备处置权限')).toBeInTheDocument();
   expect(screen.queryByRole('heading', { level: 2, name: '告警中心' })).not.toBeInTheDocument();
   expect(view.container.querySelector('.v2-alert-inspector')).not.toBeInTheDocument();
   expect(view.container.querySelector('.v2-alert-workspace')).not.toHaveClass('is-inspector-open');
@@ -326,7 +326,7 @@ test('uses one focused Semi bottom SideSheet for the complete mobile event filte
   render(<QueryClientProvider client={client}><MemoryRouter future={ROUTER_FUTURE} initialEntries={['/alerts']}><AlertsPage /></MemoryRouter></QueryClientProvider>);
 
   await screen.findByText('当前筛选条件没有告警事件');
-  const trigger = screen.getByRole('button', { name: /修改事件筛选/ });
+  const trigger = screen.getByRole('button', { name: '打开告警筛选：全部告警' });
   expect(trigger).toHaveAttribute('aria-expanded', 'false');
   fireEvent.click(trigger);
 
@@ -346,7 +346,7 @@ test('uses one focused Semi bottom SideSheet for the complete mobile event filte
   fireEvent.click(within(dialog).getByRole('button', { name: '应用并查询' }));
 
   await waitFor(() => expect(mocks.alertEventsV2).toHaveBeenLastCalledWith(expect.objectContaining({ protocol: 'JT808' }), expect.anything()));
-  expect(screen.getByRole('button', { name: /修改事件筛选：已启用 1 项/ })).toHaveAttribute('aria-expanded', 'false');
+  expect(screen.getByRole('button', { name: '打开告警筛选：已启用 1 项' })).toHaveAttribute('aria-expanded', 'false');
 });
 
 test('keeps mobile rule selection focused and opens editing in a Semi bottom SideSheet', async () => {
diff --git a/vehicle-data-platform/apps/web/src/v2/pages/AlertsPage.tsx b/vehicle-data-platform/apps/web/src/v2/pages/AlertsPage.tsx
index ff55e184..fba8c62d 100644
--- a/vehicle-data-platform/apps/web/src/v2/pages/AlertsPage.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/pages/AlertsPage.tsx
@@ -284,12 +284,13 @@ function EventWorkspace({ filters, draft, setDraft, setFilters, rules, unread, e
   return <>
     {mobileLayout ? <div className="v2-alert-mobile-discovery">
       <MobileFilterToggle
-        title="事件筛选"
+        title="筛选告警"
         summary={activeFilterCount ? `已启用 ${activeFilterCount} 项` : '全部告警'}
         expanded={mobileFiltersOpen}
         controls="v2-alert-mobile-filters"
         expandedLabel="关闭"
-        collapsedLabel="修改"
+        collapsedLabel="筛选"
+        ariaLabel={`${mobileFiltersOpen ? '关闭' : '打开'}告警筛选：${activeFilterCount ? `已启用 ${activeFilterCount} 项` : '全部告警'}`}
         onToggle={() => setFiltersCollapsed((value) => !value)}
       />
       <MobileFilterSheet
@@ -640,7 +641,7 @@ export default function AlertsPage() {
       description="核验事件证据、治理规则并追踪通知状态"
       status={unread ? `${unread.toLocaleString('zh-CN')} 条未读` : '通知已读'}
       statusColor={unread ? 'orange' : 'green'}
-      meta={<Typography.Text type="tertiary">{operator ? '可处置事件' : '只读查看'}</Typography.Text>}
+      meta={<Typography.Text type="tertiary">{operator ? '具备处置权限' : '仅限查看'}</Typography.Text>}
       actions={<SegmentedTabs className="v2-alert-tabs" variant="filled" ariaLabel="告警中心分类" value={activeTab} items={tabs} onChange={setTab} />}
     />
     {activeTab !== 'notifications' && rules.isError ? <InlineError message={rules.error.message} onRetry={() => rules.refetch()} /> : null}
diff --git a/vehicle-data-platform/apps/web/src/v2/styles/workspace.css b/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
index d33df9c6..7b099ad7 100644
--- a/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
+++ b/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
@@ -9431,6 +9431,81 @@
   padding-inline: 7px;
 }
 
+@media (min-width: 681px) {
+  .v2-alert-notification-list {
+    padding: 0 10px 10px;
+  }
+
+  .v2-alert-notification-cards.semi-card-group {
+    overflow: hidden;
+    grid-template-columns: minmax(0, 1fr);
+    gap: 0;
+    border: 1px solid #e1e8f0;
+    border-radius: 10px;
+    background: #fff;
+  }
+
+  .v2-alert-notification-card.semi-card {
+    display: grid;
+    min-height: 64px;
+    grid-template-columns: minmax(248px, .72fr) minmax(0, 1.7fr);
+    border: 0;
+    border-bottom: 1px solid #e8edf3;
+    border-radius: 0;
+    box-shadow: none;
+    contain-intrinsic-size: auto 64px;
+    transition: background-color .16s ease;
+  }
+
+  .v2-alert-notification-card.semi-card:last-child {
+    border-bottom: 0;
+  }
+
+  .v2-alert-notification-card.semi-card:hover {
+    background: #f8fbff;
+  }
+
+  .v2-alert-notification-card.is-unread.semi-card {
+    box-shadow: inset 3px 0 #2f78e8;
+  }
+
+  .v2-alert-notification-card > .semi-card-header {
+    min-height: 64px;
+    border-right: 1px solid #edf1f5;
+    border-bottom: 0;
+    padding: 8px 12px;
+  }
+
+  .v2-alert-notification-card > .semi-card-body {
+    display: grid;
+    min-height: 64px;
+    grid-template-columns: minmax(0, 1fr) 138px;
+  }
+
+  .v2-alert-notification-content {
+    display: -webkit-box;
+    min-height: 64px;
+    overflow: hidden;
+    align-content: center;
+    margin: 0;
+    padding: 12px 14px;
+    line-height: 1.45;
+    -webkit-box-orient: vertical;
+    -webkit-line-clamp: 2;
+  }
+
+  .v2-alert-notification-card > .semi-card-body > footer {
+    min-height: 64px;
+    justify-content: center;
+    align-items: flex-end;
+    flex-direction: column;
+    gap: 2px;
+    border-top: 0;
+    border-left: 1px solid #edf1f5;
+    padding: 7px 9px;
+  }
+}
+
 .v2-alert-notification-pagination {
   display: flex;
   min-height: 48px;