refine Semi UI alert mobile sheets

vehicle-data-platform/apps/web/src/v2/pages/AlertsPage.tsx

@@ -268,7 +268,9 @@ function EventWorkspace({ filters, draft, setDraft, setFilters, rules, unread, e
       className="v2-alert-filter-sidesheet"
       visible={advancedOpen}
       aria-label="告警高级筛选"
-      width={430}
+      placement={mobileLayout ? 'bottom' : 'right'}
+      width={mobileLayout ? undefined : 430}
+      height={mobileLayout ? 'min(72dvh, 620px)' : undefined}
       title={<div className="v2-alert-sheet-title"><strong>更多筛选</strong><span>按规则、协议和触发时间收窄告警范围</span></div>}
       onCancel={() => setAdvancedOpen(false)}
       footer={<div className="v2-alert-sheet-footer"><Button theme="light" onClick={() => setDraft({ ...draft, ruleId: '', protocol: '', dateFrom: '', dateTo: '' })}>清空高级条件</Button><Button theme="solid" onClick={() => { applyDraft(); setAdvancedOpen(false); }}>应用筛选</Button></div>}
@@ -284,7 +286,8 @@ function EventWorkspace({ filters, draft, setDraft, setFilters, rules, unread, e
       className="v2-alert-detail-sidesheet"
       visible={mobileLayout && Boolean(selectedID)}
       aria-label="告警事件详情"
-      width="100%"
+      placement="bottom"
+      height="min(86dvh, 760px)"
       title={<div className="v2-alert-sheet-title"><strong>告警详情</strong><span>{selectedEvent ? `${selectedEvent.plate || selectedEvent.vin} · ${selectedEvent.ruleName}` : '证据、状态与处置履历'}</span></div>}
       onCancel={closeDetail}
     >