diff --git a/frontend/src/pages/AnnouncementPage.tsx b/frontend/src/pages/AnnouncementPage.tsx
index 2200293..14c8b30 100644
--- a/frontend/src/pages/AnnouncementPage.tsx
+++ b/frontend/src/pages/AnnouncementPage.tsx
@@ -1,6 +1,7 @@
 import { useState, useEffect, useCallback } from 'react';
 import request from '@/api/request';
 import { Megaphone, Plus, Edit2, Trash2, Eye, Clock, CheckCircle, X, Save } from 'lucide-react';
+import { ConfirmDialog } from '@/components/ConfirmDialog';
 
 /* ── types ── */
 interface Announcement {
@@ -56,6 +57,7 @@ export default function AnnouncementPage() {
 
   /* view preview */
   const [viewAnn, setViewAnn] = useState<Announcement | null>(null);
+  const [deleteConfirm, setDeleteConfirm] = useState<{msg: string; onConfirm: () => void} | null>(null);
 
   const fetchList = useCallback(async () => {
     try {
@@ -118,13 +120,8 @@ export default function AnnouncementPage() {
   };
 
   const handleDelete = async (id: number) => {
-    if (!confirm('确定删除此公告？')) return;
-    try {
-      await request.delete(`/announcements/${id}`);
-      fetchList();
-    } catch {
-      /* ignore */
-    }
+    setDeleteConfirm({msg: '确定删除此公告？', onConfirm: async () => { try { await request.delete(`/announcements/${id}`); fetchList(); } catch {} }});
+    return;
   };
 
   /* ── render ── */
@@ -344,6 +341,14 @@ export default function AnnouncementPage() {
           </div>
         </div>
       )}
+      <ConfirmDialog
+        open={!!deleteConfirm}
+        title={deleteConfirm?.msg || '确认操作'}
+        variant="danger"
+        confirmText="确定"
+        onConfirm={() => { deleteConfirm?.onConfirm(); }}
+        onCancel={() => setDeleteConfirm(null)}
+      />
     </div>
   );
 }
diff --git a/frontend/src/pages/InstanceDetailPage.tsx b/frontend/src/pages/InstanceDetailPage.tsx
index a98a31d..cf47092 100644
--- a/frontend/src/pages/InstanceDetailPage.tsx
+++ b/frontend/src/pages/InstanceDetailPage.tsx
@@ -4,6 +4,7 @@ import { ArrowLeft, Database, Table2, Users, Cpu, Play, RefreshCw } from 'lucide
 import { instanceDetailApi } from '@/api/instanceDetail';
 import { instanceApi } from '@/api/instance';
 import { queryApi } from '@/api/query';
+import { ConfirmDialog } from '@/components/ConfirmDialog';
 
 interface InstanceInfo {
   id: number; name: string; db_type: string; host: string; port: number;
@@ -27,6 +28,7 @@ export default function InstanceDetailPage() {
   var [sqlText, setSqlText] = useState('');
   var [queryResult, setQueryResult] = useState<any>(null);
   var [loading, setLoading] = useState(false);
+  const [deleteConfirm, setDeleteConfirm] = useState<{msg: string; onConfirm: () => void} | null>(null);
 
   var tabs: { key: TabKey; label: string; icon: React.ElementType }[] = [
     { key: 'overview', label: '概览', icon: Database },
@@ -81,12 +83,17 @@ export default function InstanceDetailPage() {
   };
 
   var handleKill = function (pid: number) {
-    if (!confirm('确定 Kill 进程 ' + pid + '？')) return;
-    instanceDetailApi.killProcess(instanceId, pid).then(function () {
-      instanceDetailApi.getProcesslist(instanceId).then(function (res: any) {
-        setProcesses(res.processes || res || []);
-      });
-    }).catch(function () {});
+    setDeleteConfirm({
+      msg: '确定 Kill 进程 ' + pid + '？',
+      onConfirm: () => {
+        instanceDetailApi.killProcess(instanceId, pid).then(() => {
+          instanceDetailApi.getProcesslist(instanceId).then((res: any) => {
+            setProcesses(res.processes || res || []);
+          });
+        });
+      }
+    });
+    return;
   };
 
   if (!instance) return <div className="p-10 text-center text-[var(--dg-text-muted)]">加载中...</div>;
@@ -255,6 +262,15 @@ export default function InstanceDetailPage() {
           {processes.length === 0 && <div className="text-center py-8 text-[var(--dg-text-muted)]">暂无进程</div>}
         </div>
       )}
+
+      <ConfirmDialog
+        open={!!deleteConfirm}
+        title={deleteConfirm?.msg || '确认操作'}
+        variant="danger"
+        confirmText="确定"
+        onConfirm={() => { deleteConfirm?.onConfirm(); }}
+        onCancel={() => setDeleteConfirm(null)}
+      />
     </div>
   );
 }
diff --git a/frontend/src/pages/InstanceGroupPage.tsx b/frontend/src/pages/InstanceGroupPage.tsx
index f88dd77..cf3fe70 100644
--- a/frontend/src/pages/InstanceGroupPage.tsx
+++ b/frontend/src/pages/InstanceGroupPage.tsx
@@ -8,6 +8,7 @@ import { instanceGroupApi, type InstanceGroup } from '@/api/instanceGroup';
 import { instanceApi } from '@/api/instance';
 import { userApi } from '@/api/user';
 import { useActionPermission } from '@/hooks/useAuth';
+import { ConfirmDialog } from '@/components/ConfirmDialog';
 
 /* ───────── Constants ───────── */
 
@@ -109,6 +110,7 @@ export default function InstanceGroupPage() {
   const [showCreateModal, setShowCreateModal] = useState(false);
   const [showEditModal, setShowEditModal] = useState(false);
   const [showUserModal, setShowUserModal] = useState(false);
+  const [deleteConfirm, setDeleteConfirm] = useState<{msg: string; onConfirm: () => void} | null>(null);
   const canManage = useActionPermission('instance-group.manage');
 
   // Form state — shared by create & edit
@@ -215,10 +217,11 @@ export default function InstanceGroupPage() {
 
   /* ── Delete ── */
   const handleDelete = async (id: number) => {
-    if (!confirm('确定删除该权限组？')) return;
-    await instanceGroupApi.delete(id);
-    if (selectedId === id) setSelectedId(null);
-    fetchGroups();
+    setDeleteConfirm({msg: '确定删除该权限组？', onConfirm: async () => {
+      await instanceGroupApi.delete(id);
+      if (selectedId === id) setSelectedId(null);
+      fetchGroups();
+    }});
   };
 
   /* ── Assign Users ── */
@@ -439,6 +442,15 @@ export default function InstanceGroupPage() {
       <FormModal mode="create" />
       <FormModal mode="edit" />
 
+      <ConfirmDialog
+        open={!!deleteConfirm}
+        title={deleteConfirm?.msg || '确认操作'}
+        variant="danger"
+        confirmText="确定"
+        onConfirm={() => { deleteConfirm?.onConfirm(); }}
+        onCancel={() => setDeleteConfirm(null)}
+      />
+
       {/* User Modal */}
       {showUserModal && (
         <div className="fixed inset-0 z-[100] flex items-start justify-center pt-[10vh] bg-black/60 backdrop-blur-sm">
diff --git a/frontend/src/pages/InstancePage.tsx b/frontend/src/pages/InstancePage.tsx
index b53ca64..ee92abf 100644
--- a/frontend/src/pages/InstancePage.tsx
+++ b/frontend/src/pages/InstancePage.tsx
@@ -12,6 +12,7 @@ import PageHeader from '@/components/PageHeader';
 import EmptyState from '@/components/EmptyState';
 import { instanceApi } from '@/api/instance';
 import EditInstanceDialog from '@/components/EditInstanceDialog';
+import { ConfirmDialog } from '@/components/ConfirmDialog';
 
 /* ------------------------------------------------------------------ */
 /*  Types                                                              */
@@ -189,29 +190,28 @@ export default function InstancePage() {
   }, [filtered]);
 
   const handleDelete = useCallback(async (id: number) => {
-    if (!confirm('确定删除该实例？')) return;
-    try {
-      await instanceApi.delete(id);
-      fetchInstances();
-    } catch {
-      /* ignore */
-    }
+    setDeleteConfirm({
+      msg: '确定删除该实例？',
+      onConfirm: async () => {
+        try { await instanceApi.delete(id); fetchInstances(); } catch {}
+      },
+    });
   }, [fetchInstances]);
 
   const handleBatchDelete = useCallback(async () => {
     if (selectedIds.size === 0) return;
-    if (!confirm(`确定删除选中的 ${selectedIds.size} 个实例？此操作不可恢复。`)) return;
-    setBatchDeleting(true);
-    try {
-      const ids = Array.from(selectedIds);
-      await Promise.all(ids.map(id => instanceApi.delete(id)));
-      setSelectedIds(new Set());
-      fetchInstances();
-    } catch {
-      /* ignore */
-    } finally {
-      setBatchDeleting(false);
-    }
+    setDeleteConfirm({
+      msg: `确定删除选中的 ${selectedIds.size} 个实例？此操作不可恢复。`,
+      onConfirm: async () => {
+        setBatchDeleting(true);
+        try {
+          const ids = Array.from(selectedIds);
+          await Promise.all(ids.map(i => instanceApi.delete(i)));
+          setSelectedIds(new Set());
+          fetchInstances();
+        } finally { setBatchDeleting(false); }
+      },
+    });
   }, [selectedIds, fetchInstances]);
 
   const toggleSelect = useCallback((id: number) => {
@@ -994,6 +994,7 @@ function CreateInstanceForm({ defaultType, onCancel, onCreated }: {
   const [error, setError] = useState('');
   const [testing, setTesting] = useState(false);
   const [testResult, setTestResult] = useState<{ success: boolean; message: string; version?: string } | null>(null);
+  const [deleteConfirm, setDeleteConfirm] = useState<{msg: string; onConfirm: () => void} | null>(null);
 
   const isRedis = dbType === 'redis';
   const needUsername = !isRedis;
@@ -1447,6 +1448,14 @@ function CreateInstanceForm({ defaultType, onCancel, onCreated }: {
           </div>
         </div>
       </div>
+    <ConfirmDialog
+            open={!!deleteConfirm}
+            title={deleteConfirm?.msg || '确认操作'}
+            variant="danger"
+            confirmText="确定"
+            onConfirm={() => { deleteConfirm?.onConfirm(); }}
+            onCancel={() => setDeleteConfirm(null)}
+          />
     </div>
   );
 }
diff --git a/frontend/src/pages/NotificationPage.tsx b/frontend/src/pages/NotificationPage.tsx
index d67fb94..a14b606 100644
--- a/frontend/src/pages/NotificationPage.tsx
+++ b/frontend/src/pages/NotificationPage.tsx
@@ -1,6 +1,7 @@
 import { useState, useEffect, useCallback } from 'react';
 import request from '@/api/request';
 import { Plus, Trash2, Send, Bell, Mail, Settings, X } from 'lucide-react';
+import { ConfirmDialog } from '@/components/ConfirmDialog';
 
 /* ── types ── */
 type ChannelType = 'dingtalk' | 'webhook_feishu' | 'email';
@@ -62,6 +63,7 @@ export default function NotificationPage() {
   /* test */
   const [testingId, setTestingId] = useState<number | null>(null);
   const [testResult, setTestResult] = useState<Record<number, { success: boolean; message: string } | null>>({});
+  const [deleteConfirm, setDeleteConfirm] = useState<{msg: string; onConfirm: () => void} | null>(null);
 
   const fetchList = useCallback(async () => {
     try {
@@ -128,13 +130,8 @@ export default function NotificationPage() {
   };
 
   const handleDelete = async (id: number) => {
-    if (!confirm('确定删除此通知渠道？')) return;
-    try {
-      await request.delete(`/notifications/${id}`);
-      fetchList();
-    } catch {
-      /* ignore */
-    }
+    setDeleteConfirm({msg: '确定删除此通知渠道？', onConfirm: async () => { try { await request.delete(`/notifications/${id}`); fetchList(); } catch {} }}); 
+    return;
   };
 
   const handleTest = async (id: number) => {
@@ -451,6 +448,14 @@ export default function NotificationPage() {
           </div>
         </div>
       )}
+      <ConfirmDialog
+        open={!!deleteConfirm}
+        title={deleteConfirm?.msg || '确认操作'}
+        variant="danger"
+        confirmText="确定"
+        onConfirm={() => { deleteConfirm?.onConfirm(); }}
+        onCancel={() => setDeleteConfirm(null)}
+      />
     </div>
   );
 }
diff --git a/frontend/src/pages/NotificationsPage.tsx b/frontend/src/pages/NotificationsPage.tsx
index addd678..4e787e8 100644
--- a/frontend/src/pages/NotificationsPage.tsx
+++ b/frontend/src/pages/NotificationsPage.tsx
@@ -2,6 +2,7 @@ import { useState, useEffect, useCallback } from 'react';
 import { Bell, Webhook, Check, Settings, TestTube, ToggleLeft, ToggleRight, Loader2, AlertCircle, Plus, Trash2 } from 'lucide-react';
 import { Card, CardContent } from '@/components/ui/card';
 import { notificationApi } from '@/api/notification';
+import { ConfirmDialog } from '@/components/ConfirmDialog';
 
 interface NotificationChannel {
   id: number;
@@ -25,6 +26,7 @@ export default function NotificationsPage() {
   const [error, setError] = useState<string | null>(null);
   const [testingId, setTestingId] = useState<number | null>(null);
   const [testResult, setTestResult] = useState<{ id: number; success: boolean; message: string } | null>(null);
+  const [deleteConfirm, setDeleteConfirm] = useState<{msg: string; onConfirm: () => void} | null>(null);
 
   const fetchChannels = useCallback(async () => {
     try {
@@ -67,11 +69,8 @@ export default function NotificationsPage() {
   }, []);
 
   const handleDelete = useCallback(async (id: number) => {
-    if (!confirm('确认删除该通知渠道？')) return;
-    try {
-      await notificationApi.delete(id);
-      setChannels(prev => prev.filter(c => c.id !== id));
-    } catch {}
+    setDeleteConfirm({msg: '确认删除该通知渠道？', onConfirm: async () => { try { await notificationApi.delete(id); setChannels(prev => prev.filter(c => c.id !== id)); } catch {} }});
+    return;
   }, []);
 
   if (loading) {
@@ -175,6 +174,14 @@ export default function NotificationsPage() {
           </div>
         </>
       )}
+      <ConfirmDialog
+        open={!!deleteConfirm}
+        title={deleteConfirm?.msg || '确认操作'}
+        variant="danger"
+        confirmText="确定"
+        onConfirm={() => { deleteConfirm?.onConfirm(); }}
+        onCancel={() => setDeleteConfirm(null)}
+      />
     </div>
   );
 }
diff --git a/frontend/src/pages/RedisDetailPage.tsx b/frontend/src/pages/RedisDetailPage.tsx
index f9ec823..e500da0 100644
--- a/frontend/src/pages/RedisDetailPage.tsx
+++ b/frontend/src/pages/RedisDetailPage.tsx
@@ -2,6 +2,7 @@ import { useState, useEffect } from 'react';
 import { useParams, useNavigate } from 'react-router-dom';
 import { ArrowLeft, Key, Activity, Terminal, Gauge, Plus, RefreshCw, Search } from 'lucide-react';
 import { redisApi } from '@/api/redis';
+import { ConfirmDialog } from '@/components/ConfirmDialog';
 
 type TabKey = 'keys' | 'monitor' | 'cli' | 'perf';
 
@@ -24,6 +25,7 @@ export default function RedisDetailPage() {
   var [slowlog, setSlowlog] = useState<any[]>([]);
   var [clients, setClients] = useState<any[]>([]);
   var [loading, setLoading] = useState(false);
+  const [deleteConfirm, setDeleteConfirm] = useState<{msg: string; onConfirm: () => void} | null>(null);
 
   var tabs: { key: TabKey; label: string; icon: React.ElementType }[] = [
     { key: 'keys', label: '键管理', icon: Key },
@@ -54,8 +56,10 @@ export default function RedisDetailPage() {
   };
 
   var handleDeleteKey = function (keyName: string) {
-    if (!confirm('确定删除键 ' + keyName + '？')) return;
-    redisApi.deleteKey(instanceId, keyName, selectedDb).then(function () { fetchKeys(); }).catch(function () {});
+    setDeleteConfirm({msg: '确定删除该键？', onConfirm: async () => {
+      redisApi.deleteKey(instanceId, keyName, selectedDb).then(function () { fetchKeys(); }).catch(function () {});
+    }});
+    return;
   };
 
   var handleCommand = function () {
@@ -304,6 +308,14 @@ export default function RedisDetailPage() {
           </div>
         </div>
       )}
+      <ConfirmDialog
+        open={!!deleteConfirm}
+        title={deleteConfirm?.msg || '确认操作'}
+        variant="danger"
+        confirmText="确定"
+        onConfirm={() => { deleteConfirm?.onConfirm(); }}
+        onCancel={() => setDeleteConfirm(null)}
+      />
     </div>
   );
 }
diff --git a/frontend/src/pages/UsersPage.tsx b/frontend/src/pages/UsersPage.tsx
index 7f5973a..c3ef98f 100644
--- a/frontend/src/pages/UsersPage.tsx
+++ b/frontend/src/pages/UsersPage.tsx
@@ -10,6 +10,7 @@ import { userApi, ldapApi } from '@/api/user';
 import { instanceGroupApi, type InstanceGroup } from '@/api/instanceGroup';
 import { nameToUsername } from '@/utils/pinyin';
 import { toast } from '@/hooks/useToast';
+import { ConfirmDialog } from '@/components/ConfirmDialog';
 
 /* ───────── Types ───────── */
 
@@ -134,6 +135,7 @@ export default function UsersPage() {
   const [selectedIds, setSelectedIds] = useState<Set<number>>(new Set());
   const [showBatchMenu, setShowBatchMenu] = useState(false);
   const [showImport, setShowImport] = useState(false);
+  const [deleteConfirm, setDeleteConfirm] = useState<{msg: string; onConfirm: () => void} | null>(null);
 
   const fetchUsers = useCallback(async () => {
     setLoading(true);
@@ -188,13 +190,15 @@ export default function UsersPage() {
   };
 
   const handleDelete = async (id: number) => {
-    if (!confirm('确定删除该用户？此操作不可恢复。')) return;
-    try {
-      await userApi.delete(id);
-      setSelectedIds(prev => { const n = new Set(prev); n.delete(id); return n; });
-      toast('success', '用户已删除');
-      fetchUsers();
-    } catch { toast('error', '删除失败'); }
+    setDeleteConfirm({msg: '确定删除该用户？此操作不可恢复。', onConfirm: async () => {
+      try {
+        await userApi.delete(id);
+        setSelectedIds(prev => { const n = new Set(prev); n.delete(id); return n; });
+        toast('success', '用户已删除');
+        fetchUsers();
+      } catch { toast('error', '删除失败'); }
+    }});
+    return;
   };
 
   const handleBatchAction = async (action: string) => {
@@ -521,6 +525,14 @@ export default function UsersPage() {
       {showImport && (
         <BatchImportModal onClose={() => setShowImport(false)} onImported={() => { setShowImport(false); fetchUsers(); }} />
       )}
+      <ConfirmDialog
+        open={!!deleteConfirm}
+        title={deleteConfirm?.msg || '确认操作'}
+        variant="danger"
+        confirmText="确定"
+        onConfirm={() => { deleteConfirm?.onConfirm(); }}
+        onCancel={() => setDeleteConfirm(null)}
+      />
     </div>
   );
 }
@@ -888,6 +900,7 @@ function BatchImportModal({ onClose, onImported }: { onClose: () => void; onImpo
   const [newOuName, setNewOuName] = useState('');
   const [newOuDesc, setNewOuDesc] = useState('');
   const [creatingOu, setCreatingOu] = useState(false);
+  const [deleteConfirm, setDeleteConfirm] = useState<{msg: string; onConfirm: () => void} | null>(null);
 
   // Check LDAP readiness
   useEffect(() => {
diff --git a/frontend/src/pages/WorkflowPage.tsx b/frontend/src/pages/WorkflowPage.tsx
index 0c22b86..23ba242 100644
--- a/frontend/src/pages/WorkflowPage.tsx
+++ b/frontend/src/pages/WorkflowPage.tsx
@@ -7,6 +7,7 @@ import {
 import { Card, CardContent } from '@/components/ui/card';
 import { workflowApi } from '@/api/workflow';
 import { userApi } from '@/api/user';
+import { ConfirmDialog } from '@/components/ConfirmDialog';
 
 /* ------------------------------------------------------------------ */
 /*  Types                                                               */
@@ -470,6 +471,7 @@ export default function WorkflowPage() {
   const [expandedId, setExpandedId] = useState<number | null>(null);
   const [previewWorkflow, setPreviewWorkflow] = useState<WorkflowDetail | null>(null);
   const [editorWorkflow, setEditorWorkflow] = useState<WorkflowDetail | null | undefined>(undefined);
+  const [deleteConfirm, setDeleteConfirm] = useState<{msg: string; onConfirm: () => void} | null>(null);
 
   const fetchWorkflows = useCallback(async () => {
     try {
@@ -506,11 +508,13 @@ export default function WorkflowPage() {
   }, []);
 
   const handleDelete = useCallback(async (id: number) => {
-    if (!confirm('确认删除该审批流程？')) return;
-    try {
-      await workflowApi.delete(id);
-      setItems((prev) => prev.filter((w) => w.id !== id));
-    } catch {}
+    setDeleteConfirm({msg: '确认删除该审批流程？', onConfirm: async () => {
+      try {
+        await workflowApi.delete(id);
+        setItems((prev) => prev.filter((w) => w.id !== id));
+      } catch {}
+    }});
+    return;
   }, []);
 
   const setDefault = useCallback(async (id: number) => {
@@ -807,6 +811,14 @@ export default function WorkflowPage() {
           onSaved={() => { setEditorWorkflow(undefined); fetchWorkflows(); }}
         />
       )}
+      <ConfirmDialog
+        open={!!deleteConfirm}
+        title={deleteConfirm?.msg || '确认操作'}
+        variant="danger"
+        confirmText="确定"
+        onConfirm={() => { deleteConfirm?.onConfirm(); }}
+        onCancel={() => setDeleteConfirm(null)}
+      />
     </div>
   );
 }