diff --git a/frontend/app/components/common/AppFormDialog.tsx b/frontend/app/components/common/AppFormDialog.tsx
new file mode 100644
index 0000000..4bb7312
--- /dev/null
+++ b/frontend/app/components/common/AppFormDialog.tsx
@@ -0,0 +1,90 @@
+import type { ReactNode } from "react"
+
+import {
+  Dialog,
+  DialogContent,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "~/components/ui/dialog"
+import { cn } from "~/lib/utils"
+
+/** 与系统管理弹窗 footer 一致的次要按钮样式 */
+export const dialogSecondaryButtonClass =
+  "h-[37px] gap-[7px] rounded-md border-[#d8e1e9] bg-white px-[15px] text-xs font-[650] text-[#56687c]"
+
+/** 与系统管理弹窗 footer 一致的主按钮样式 */
+export const dialogPrimaryButtonClass =
+  "h-[37px] gap-[7px] rounded-md border border-[#126ac3] bg-gradient-to-br from-[#1881e7] to-[#1268c9] px-[15px] text-xs font-[650] text-white shadow-[0_6px_15px_rgb(20_111_202/18%)] enabled:hover:from-[#1175d8] enabled:hover:to-[#0e5bad]"
+
+const EYEBROW_CLASS =
+  "text-[9px] font-extrabold tracking-[0.12em] text-[#2d82d4]"
+
+const TITLE_CLASS = "mt-1 text-[19px] font-normal text-[#1c2d42]"
+
+type AppFormDialogProps = {
+  open: boolean
+  onOpenChange: (open: boolean) => void
+  eyebrow?: string
+  title?: ReactNode
+  titleId?: string
+  children: ReactNode
+  footer?: ReactNode
+  contentClassName?: string
+  bodyClassName?: string
+  showCloseButton?: boolean
+  size?: "compact" | "panel"
+}
+
+function AppFormDialog({
+  open,
+  onOpenChange,
+  eyebrow,
+  title,
+  titleId,
+  children,
+  footer,
+  contentClassName,
+  bodyClassName,
+  showCloseButton = true,
+  size = "compact",
+}: AppFormDialogProps) {
+  const maxWidth =
+    size === "panel"
+      ? "sm:max-w-[min(520px,calc(100vw-40px))]"
+      : "sm:max-w-[min(480px,calc(100vw-40px))]"
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent
+        showCloseButton={showCloseButton}
+        className={cn(
+          "flex max-h-[80vh] flex-col gap-0 overflow-hidden rounded-[11px] border-[#dce4eb] bg-white p-0 text-[#1c2d42] shadow-[0_24px_70px_rgb(8_27_48/25%)] ring-0",
+          maxWidth,
+          contentClassName,
+        )}
+      >
+        {eyebrow || title ? (
+          <DialogHeader className="shrink-0 space-y-0 border-b border-[#e7ecf1] px-[22px] pb-4 pt-5 text-left">
+            {eyebrow ? <span className={EYEBROW_CLASS}>{eyebrow}</span> : null}
+            {title ? (
+              <DialogTitle id={titleId} className={TITLE_CLASS}>
+                {title}
+              </DialogTitle>
+            ) : null}
+          </DialogHeader>
+        ) : null}
+        <div className={cn("min-h-0 flex-1 overflow-y-auto", bodyClassName)}>
+          {children}
+        </div>
+        {footer ? (
+          <DialogFooter className="mt-0 shrink-0 flex-row justify-end gap-2 border-t border-[#e8edf2] bg-white px-[22px] py-3.5 sm:justify-end">
+            {footer}
+          </DialogFooter>
+        ) : null}
+      </DialogContent>
+    </Dialog>
+  )
+}
+
+export { AppFormDialog }
diff --git a/frontend/app/components/common/ConfirmDialog.tsx b/frontend/app/components/common/ConfirmDialog.tsx
new file mode 100644
index 0000000..a9791ea
--- /dev/null
+++ b/frontend/app/components/common/ConfirmDialog.tsx
@@ -0,0 +1,74 @@
+import {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogTitle,
+} from "~/components/ui/alert-dialog"
+import { cn } from "~/lib/utils"
+
+import {
+  dialogPrimaryButtonClass,
+  dialogSecondaryButtonClass,
+} from "./AppFormDialog"
+
+type ConfirmDialogProps = {
+  open: boolean
+  onOpenChange: (open: boolean) => void
+  title: string
+  description: string
+  confirmLabel?: string
+  cancelLabel?: string
+  destructive?: boolean
+  onConfirm: () => void | Promise<void>
+}
+
+function ConfirmDialog({
+  open,
+  onOpenChange,
+  title,
+  description,
+  confirmLabel = "确定",
+  cancelLabel = "取消",
+  destructive = false,
+  onConfirm,
+}: ConfirmDialogProps) {
+  return (
+    <AlertDialog open={open} onOpenChange={onOpenChange}>
+      <AlertDialogContent className="rounded-[11px] border-[#dce4eb] bg-white">
+        <AlertDialogHeader>
+          <AlertDialogTitle className="text-[#1c2d42]">{title}</AlertDialogTitle>
+          <AlertDialogDescription className="text-[#56687c]">
+            {description}
+          </AlertDialogDescription>
+        </AlertDialogHeader>
+        <AlertDialogFooter>
+          <AlertDialogCancel
+            variant="outline"
+            size="sm"
+            className={dialogSecondaryButtonClass}
+          >
+            {cancelLabel}
+          </AlertDialogCancel>
+          <AlertDialogAction
+            variant={destructive ? "destructive" : "default"}
+            size="sm"
+            className={cn(
+              destructive
+                ? "h-[37px] gap-[7px] rounded-md border-0 bg-[#d75b5b] px-[15px] text-xs font-[650] text-white hover:bg-[#a94f4f]"
+                : dialogPrimaryButtonClass,
+            )}
+            onClick={() => void onConfirm()}
+          >
+            {confirmLabel}
+          </AlertDialogAction>
+        </AlertDialogFooter>
+      </AlertDialogContent>
+    </AlertDialog>
+  )
+}
+
+export { ConfirmDialog }
diff --git a/frontend/app/features/admin/ImportMemberDialog.tsx b/frontend/app/features/admin/ImportMemberDialog.tsx
index d49e15b..bdf38d7 100644
--- a/frontend/app/features/admin/ImportMemberDialog.tsx
+++ b/frontend/app/features/admin/ImportMemberDialog.tsx
@@ -1,25 +1,16 @@
-import { X } from "lucide-react";
 import { type Employee, type Workspace } from "../../services/api";
+import {
+  AppFormDialog,
+  dialogPrimaryButtonClass,
+  dialogSecondaryButtonClass,
+} from "~/components/common/AppFormDialog";
 import { Button } from "~/components/ui/button";
 import {
   formFieldClass,
-  modalBackdropClass,
-  modalCompactClass,
-  modalEyebrowClass,
-  modalFooterClass,
   modalFormClass,
-  modalHeaderClass,
-  modalTitleClass,
 } from "../platform/modalUi";
 import { UserMultiSelect } from "./UserMultiSelect";
 
-const CLOSE_BUTTON_CLASS =
-  "size-[34px] rounded-[7px] border border-[#dfe6ed] bg-white hover:bg-[#f7faff] hover:border-[#b9c9da]";
-const SECONDARY_BUTTON_CLASS =
-  "h-[37px] gap-[7px] rounded-md border-[#d8e1e9] bg-white px-[15px] text-xs font-[650] text-[#56687c]";
-const PRIMARY_BUTTON_CLASS =
-  "h-[37px] gap-[7px] rounded-md border border-[#126ac3] bg-gradient-to-br from-[#1881e7] to-[#1268c9] px-[15px] text-xs font-[650] text-white shadow-[0_6px_15px_rgb(20_111_202/18%)] enabled:hover:from-[#1175d8] enabled:hover:to-[#0e5bad]";
-
 export function ImportMemberDialog({
   open,
   selectedProject,
@@ -27,7 +18,6 @@ export function ImportMemberDialog({
   selectedUserIds,
   existingMemberIds,
   saving,
-  onNotify,
   onChangeSelectedUserIds,
   onSubmit,
   onClose,
@@ -43,60 +33,49 @@ export function ImportMemberDialog({
   onSubmit: () => Promise<void> | void;
   onClose: () => void;
 }) {
-  if (!open || !selectedProject) return null;
-
   return (
-    <div className={modalBackdropClass} role="presentation">
-      <section className={modalCompactClass} role="dialog" aria-modal="true">
-        <div className={modalHeaderClass}>
-          <div>
-            <span className={modalEyebrowClass}>IMPORT MEMBER</span>
-            <h2 className={modalTitleClass}>导入成员到 {selectedProject?.workspace_name ?? "项目"}</h2>
-          </div>
+    <AppFormDialog
+      open={open && selectedProject !== null}
+      onOpenChange={(nextOpen) => {
+        if (!nextOpen) onClose();
+      }}
+      eyebrow="IMPORT MEMBER"
+      title={`导入成员到 ${selectedProject?.workspace_name ?? "项目"}`}
+      footer={
+        <>
           <Button
-            variant="ghost"
-            size="icon-sm"
+            variant="outline"
+            size="sm"
             type="button"
-            aria-label="关闭"
             onClick={() => onClose()}
-            className={CLOSE_BUTTON_CLASS}
+            className={dialogSecondaryButtonClass}
           >
-            <X size={16} />
+            取消
           </Button>
-        </div>
-        <form className={modalFormClass}>
-          <label className={`${formFieldClass} pb-[120px]`}>
-            <span>选择用户<span className="text-[#e74c3c]">*</span></span>
-            <UserMultiSelect
-              users={availableUsers}
-              selectedUserIds={selectedUserIds}
-              onChange={onChangeSelectedUserIds}
-              existingMemberIds={existingMemberIds}
-            />
-          </label>
-          <div className={modalFooterClass}>
-            <Button
-              variant="outline"
-              size="sm"
-              type="button"
-              onClick={() => onClose()}
-              className={SECONDARY_BUTTON_CLASS}
-            >
-              取消
-            </Button>
-            <Button
-              variant="default"
-              size="sm"
-              type="button"
-              disabled={saving || selectedUserIds.length === 0}
-              onClick={() => void onSubmit()}
-              className={PRIMARY_BUTTON_CLASS}
-            >
-              {saving ? "添加中…" : `添加 (${selectedUserIds.length})`}
-            </Button>
-          </div>
-        </form>
-      </section>
-    </div>
+          <Button
+            variant="default"
+            size="sm"
+            type="button"
+            disabled={saving || selectedUserIds.length === 0}
+            onClick={() => void onSubmit()}
+            className={dialogPrimaryButtonClass}
+          >
+            {saving ? "添加中…" : `添加 (${selectedUserIds.length})`}
+          </Button>
+        </>
+      }
+    >
+      <div className={modalFormClass}>
+        <label className={`${formFieldClass} pb-[120px]`}>
+          <span>选择用户<span className="text-[#e74c3c]">*</span></span>
+          <UserMultiSelect
+            users={availableUsers}
+            selectedUserIds={selectedUserIds}
+            onChange={onChangeSelectedUserIds}
+            existingMemberIds={existingMemberIds}
+          />
+        </label>
+      </div>
+    </AppFormDialog>
   );
 }
diff --git a/frontend/app/features/admin/PermissionEditDialog.tsx b/frontend/app/features/admin/PermissionEditDialog.tsx
index 74ef8c9..c4902d8 100644
--- a/frontend/app/features/admin/PermissionEditDialog.tsx
+++ b/frontend/app/features/admin/PermissionEditDialog.tsx
@@ -1,26 +1,15 @@
 import { useEffect, useState } from "react";
 
-import { X } from "lucide-react";
 import type { PlatformPermission, Role } from "../../services/api";
-import { Button } from "~/components/ui/button";
 import {
-  modalBackdropClass,
-  modalCompactClass,
-  modalEyebrowClass,
-  modalFooterClass,
-  modalFormClass,
-  modalHeaderClass,
-  modalTitleClass,
-} from "../platform/modalUi";
+  AppFormDialog,
+  dialogPrimaryButtonClass,
+  dialogSecondaryButtonClass,
+} from "~/components/common/AppFormDialog";
+import { Button } from "~/components/ui/button";
+import { modalFormClass } from "../platform/modalUi";
 import { PermissionCheckboxList } from "./PermissionCheckboxList";
 
-const CLOSE_BUTTON_CLASS =
-  "size-[34px] rounded-[7px] border border-[#dfe6ed] bg-white hover:bg-[#f7faff] hover:border-[#b9c9da]";
-const SECONDARY_BUTTON_CLASS =
-  "h-[37px] gap-[7px] rounded-md border-[#d8e1e9] bg-white px-[15px] text-xs font-[650] text-[#56687c]";
-const PRIMARY_BUTTON_CLASS =
-  "h-[37px] gap-[7px] rounded-md border border-[#126ac3] bg-gradient-to-br from-[#1881e7] to-[#1268c9] px-[15px] text-xs font-[650] text-white shadow-[0_6px_15px_rgb(20_111_202/18%)] enabled:hover:from-[#1175d8] enabled:hover:to-[#0e5bad]";
-
 export function PermissionEditDialog({
   open,
   target,
@@ -41,7 +30,6 @@ export function PermissionEditDialog({
   const [selectedCodes, setSelectedCodes] = useState<string[]>(() => {
     if (!open || !target) return [];
     const initial = [...currentCodes];
-    // admin 角色必须保留 system:view（后端守卫）；前端锁定勾选兜底。
     if (target.role_code === "admin" && !initial.includes("system:view")) {
       initial.push("system:view");
     }
@@ -69,45 +57,22 @@ export function PermissionEditDialog({
     );
   };
 
-  if (!open || !target) return null;
-
   return (
-    <div className={modalBackdropClass} role="presentation">
-      <section className={modalCompactClass} role="dialog" aria-modal="true">
-        <div className={modalHeaderClass}>
-          <div>
-            <span className={modalEyebrowClass}>PERMISSIONS</span>
-            <h2 className={modalTitleClass}>权限配置 · {target.role_name}</h2>
-          </div>
-          <Button
-            variant="ghost"
-            size="icon-sm"
-            type="button"
-            aria-label="关闭"
-            onClick={onClose}
-            className={CLOSE_BUTTON_CLASS}
-          >
-            <X size={16} />
-          </Button>
-        </div>
-        <div className={modalFormClass}>
-          {target.role_code === "admin" && (
-            <p className="role-error">admin 角色必须保留 system:view 权限。</p>
-          )}
-          <PermissionCheckboxList
-            permissions={permissions}
-            selected={selectedCodes}
-            targetRoleCode={target.role_code}
-            onToggle={togglePermission}
-          />
-        </div>
-        <div className={modalFooterClass}>
+    <AppFormDialog
+      open={open && target !== null}
+      onOpenChange={(nextOpen) => {
+        if (!nextOpen) onClose();
+      }}
+      eyebrow="PERMISSIONS"
+      title={target ? `权限配置 · ${target.role_name}` : "权限配置"}
+      footer={
+        <>
           <Button
             variant="outline"
             size="sm"
             type="button"
             onClick={onClose}
-            className={SECONDARY_BUTTON_CLASS}
+            className={dialogSecondaryButtonClass}
           >
             取消
           </Button>
@@ -117,12 +82,26 @@ export function PermissionEditDialog({
             type="button"
             disabled={saving}
             onClick={() => onSubmit(selectedCodes)}
-            className={PRIMARY_BUTTON_CLASS}
+            className={dialogPrimaryButtonClass}
           >
             {saving ? "保存中…" : "保存权限"}
           </Button>
-        </div>
-      </section>
-    </div>
+        </>
+      }
+    >
+      <div className={modalFormClass}>
+        {target?.role_code === "admin" && (
+          <p className="role-error">admin 角色必须保留 system:view 权限。</p>
+        )}
+        {target ? (
+          <PermissionCheckboxList
+            permissions={permissions}
+            selected={selectedCodes}
+            targetRoleCode={target.role_code}
+            onToggle={togglePermission}
+          />
+        ) : null}
+      </div>
+    </AppFormDialog>
   );
 }
diff --git a/frontend/app/features/admin/ProjectEditDialog.tsx b/frontend/app/features/admin/ProjectEditDialog.tsx
index f03a6ec..410e833 100644
--- a/frontend/app/features/admin/ProjectEditDialog.tsx
+++ b/frontend/app/features/admin/ProjectEditDialog.tsx
@@ -1,25 +1,17 @@
-import { X } from "lucide-react";
 import { type Workspace } from "../../services/api";
+import {
+  AppFormDialog,
+  dialogPrimaryButtonClass,
+  dialogSecondaryButtonClass,
+} from "~/components/common/AppFormDialog";
 import { Button } from "~/components/ui/button";
 import { Input } from "~/components/ui/input";
 import { Textarea } from "~/components/ui/textarea";
 import {
   formFieldClass,
-  modalBackdropClass,
-  modalCompactClass,
-  modalEyebrowClass,
-  modalFooterClass,
   modalFormClass,
-  modalHeaderClass,
-  modalTitleClass,
 } from "../platform/modalUi";
 
-const CLOSE_BUTTON_CLASS =
-  "size-[34px] rounded-[7px] border border-[#dfe6ed] bg-white hover:bg-[#f7faff] hover:border-[#b9c9da]";
-const SECONDARY_BUTTON_CLASS =
-  "h-[37px] gap-[7px] rounded-md border-[#d8e1e9] bg-white px-[15px] text-xs font-[650] text-[#56687c]";
-const PRIMARY_BUTTON_CLASS =
-  "h-[37px] gap-[7px] rounded-md border border-[#126ac3] bg-gradient-to-br from-[#1881e7] to-[#1268c9] px-[15px] text-xs font-[650] text-white shadow-[0_6px_15px_rgb(20_111_202/18%)] enabled:hover:from-[#1175d8] enabled:hover:to-[#0e5bad]";
 const FORM_INPUT_CLASS =
   "h-[39px] w-full rounded-md border border-[#d6e0e9] bg-white px-[11px] text-xs text-[#283a4e] outline-none focus:border-[#5b9ddb] focus:shadow-[0_0_0_3px_rgb(38_125_207/8%)] disabled:cursor-not-allowed disabled:opacity-50";
 const FORM_TEXTAREA_CLASS =
@@ -30,7 +22,6 @@ export function ProjectEditDialog({
   editingProject,
   projectForm,
   saving,
-  onNotify,
   onChangeForm,
   onSubmit,
   onClose,
@@ -44,91 +35,78 @@ export function ProjectEditDialog({
   onSubmit: (event: React.FormEvent) => Promise<void> | void;
   onClose: () => void;
 }) {
-  if (!open) return null;
-
   return (
-    <div className={modalBackdropClass} role="presentation">
-      <section className={modalCompactClass} role="dialog" aria-modal="true">
-        <div className={modalHeaderClass}>
-          <div>
-            <span className={modalEyebrowClass}>PROJECT</span>
-            <h2 className={modalTitleClass}>{editingProject ? "编辑项目" : "新建项目"}</h2>
-          </div>
+    <AppFormDialog
+      open={open}
+      onOpenChange={(nextOpen) => {
+        if (!nextOpen) onClose();
+      }}
+      eyebrow="PROJECT"
+      title={editingProject ? "编辑项目" : "新建项目"}
+    >
+      <form className={modalFormClass} onSubmit={(event) => void onSubmit(event)}>
+        {!editingProject && (
+          <label className={formFieldClass}>
+            <span>项目编码<span className="text-[#e74c3c]">*</span></span>
+            <Input
+              className={FORM_INPUT_CLASS}
+              autoFocus
+              value={projectForm.workspace_code}
+              onChange={(event) => onChangeForm({ ...projectForm, workspace_code: event.target.value })}
+              placeholder="例如：model-development（小写字母、数字、连字符，3-32 字符）"
+            />
+          </label>
+        )}
+        <label className={formFieldClass}>
+          <span>项目名称<span className="text-[#e74c3c]">*</span></span>
+          <Input
+            className={FORM_INPUT_CLASS}
+            value={projectForm.workspace_name}
+            onChange={(event) => onChangeForm({ ...projectForm, workspace_name: event.target.value })}
+            placeholder="请输入项目名称"
+          />
+        </label>
+        <label className={formFieldClass}>
+          <span>配额（字节）</span>
+          <Input
+            className={FORM_INPUT_CLASS}
+            type="number"
+            value={projectForm.quota_bytes}
+            onChange={(event) => onChangeForm({ ...projectForm, quota_bytes: parseInt(event.target.value) || 0 })}
+            placeholder="0 表示无配额限制"
+          />
+        </label>
+        <label className={formFieldClass}>
+          <span>项目描述</span>
+          <Textarea
+            className={FORM_TEXTAREA_CLASS}
+            value={projectForm.description}
+            onChange={(event) => onChangeForm({ ...projectForm, description: event.target.value })}
+            placeholder="请输入项目描述（可选）"
+            rows={4}
+          />
+        </label>
+        <div className="mt-[3px] flex shrink-0 justify-end gap-2 border-t border-[#e8edf2] bg-white -mx-[22px] px-[22px] py-3.5">
           <Button
-            variant="ghost"
-            size="icon-sm"
+            variant="outline"
+            size="sm"
             type="button"
-            aria-label="关闭"
             onClick={() => onClose()}
-            className={CLOSE_BUTTON_CLASS}
+            className={dialogSecondaryButtonClass}
           >
-            <X size={16} />
+            取消
+          </Button>
+          <Button
+            variant="default"
+            size="sm"
+            type="submit"
+            disabled={saving}
+            className={dialogPrimaryButtonClass}
+          >
+            {saving ? "保存中…" : "保存"}
           </Button>
         </div>
-        <form className={modalFormClass} onSubmit={(event) => void onSubmit(event)}>
-          {!editingProject && (
-            <label className={formFieldClass}>
-              <span>项目编码<span className="text-[#e74c3c]">*</span></span>
-              <Input
-                className={FORM_INPUT_CLASS}
-                autoFocus
-                value={projectForm.workspace_code}
-                onChange={(event) => onChangeForm({ ...projectForm, workspace_code: event.target.value })}
-                placeholder="例如：model-development（小写字母、数字、连字符，3-32 字符）"
-              />
-            </label>
-          )}
-          <label className={formFieldClass}>
-            <span>项目名称<span className="text-[#e74c3c]">*</span></span>
-            <Input
-              className={FORM_INPUT_CLASS}
-              value={projectForm.workspace_name}
-              onChange={(event) => onChangeForm({ ...projectForm, workspace_name: event.target.value })}
-              placeholder="请输入项目名称"
-            />
-          </label>
-          <label className={formFieldClass}>
-            <span>配额（字节）</span>
-            <Input
-              className={FORM_INPUT_CLASS}
-              type="number"
-              value={projectForm.quota_bytes}
-              onChange={(event) => onChangeForm({ ...projectForm, quota_bytes: parseInt(event.target.value) || 0 })}
-              placeholder="0 表示无配额限制"
-            />
-          </label>
-          <label className={formFieldClass}>
-            <span>项目描述</span>
-            <Textarea
-              className={FORM_TEXTAREA_CLASS}
-              value={projectForm.description}
-              onChange={(event) => onChangeForm({ ...projectForm, description: event.target.value })}
-              placeholder="请输入项目描述（可选）"
-              rows={4}
-            />
-          </label>
-          <div className={modalFooterClass}>
-            <Button
-              variant="outline"
-              size="sm"
-              type="button"
-              onClick={() => onClose()}
-              className={SECONDARY_BUTTON_CLASS}
-            >
-              取消
-            </Button>
-            <Button
-              variant="default"
-              size="sm"
-              type="submit"
-              disabled={saving}
-              className={PRIMARY_BUTTON_CLASS}
-            >
-              {saving ? "保存中…" : "保存"}
-            </Button>
-          </div>
-        </form>
-      </section>
-    </div>
+      </form>
+    </AppFormDialog>
   );
 }
diff --git a/frontend/app/features/admin/ProjectManagementPage.tsx b/frontend/app/features/admin/ProjectManagementPage.tsx
index 294d22e..19c3eb3 100644
--- a/frontend/app/features/admin/ProjectManagementPage.tsx
+++ b/frontend/app/features/admin/ProjectManagementPage.tsx
@@ -4,6 +4,7 @@ import { Plus, Search } from "lucide-react";
 import { ApiRequestError, type Employee, type Workspace, type WorkspaceMember } from "../../services/api";
 import { useApi, useAuth } from "../../context/AuthContext";
 import { Button } from "~/components/ui/button";
+import { ConfirmDialog } from "~/components/common/ConfirmDialog";
 import {
   Table,
   TableBody,
@@ -52,6 +53,7 @@ export function ProjectManagementPage({
   const [membersDrawerOpen, setMembersDrawerOpen] = useState(false);
   const [currentProjectMembers, setCurrentProjectMembers] = useState<WorkspaceMember[]>([]);
   const [membersLoading, setMembersLoading] = useState(false);
+  const [deleteTarget, setDeleteTarget] = useState<Workspace | null>(null);
 
   const canManage = user?.role_code === "admin";
 
@@ -138,8 +140,7 @@ export function ProjectManagementPage({
     }
   };
 
-  const deleteProject = async (project: Workspace): Promise<void> => {
-    if (!window.confirm(`确定要删除项目"${project.workspace_name}"吗？此操作将级联软删所有成员。`)) return;
+  const executeDeleteProject = async (project: Workspace): Promise<void> => {
     try {
       await api.deleteWorkspace(project.workspace_id);
       setProjects((current) => current.filter((p) => p.workspace_id !== project.workspace_id));
@@ -332,7 +333,7 @@ export function ProjectManagementPage({
                         className="is-danger"
                         disabled={!canManage || project.status === "disabled"}
                         title={project.status === "disabled" ? "已删除的项目不能操作" : "删除项目"}
-                        onClick={() => void deleteProject(project)}
+                        onClick={() => setDeleteTarget(project)}
                       >
                         删除
                       </button>
@@ -382,6 +383,26 @@ export function ProjectManagementPage({
         onRemoveMember={(userId) => void removeMember(userId)}
         onNotify={onNotify}
       />
+
+      <ConfirmDialog
+        open={deleteTarget !== null}
+        onOpenChange={(nextOpen) => {
+          if (!nextOpen) setDeleteTarget(null);
+        }}
+        title="确定删除项目？"
+        description={
+          deleteTarget
+            ? `确定要删除项目"${deleteTarget.workspace_name}"吗？此操作将级联软删所有成员。`
+            : ""
+        }
+        confirmLabel="删除"
+        destructive
+        onConfirm={async () => {
+          if (!deleteTarget) return;
+          await executeDeleteProject(deleteTarget);
+          setDeleteTarget(null);
+        }}
+      />
     </section>
   );
 }
diff --git a/frontend/app/features/admin/RoleEditDialog.tsx b/frontend/app/features/admin/RoleEditDialog.tsx
index 74b8d58..0aa62b1 100644
--- a/frontend/app/features/admin/RoleEditDialog.tsx
+++ b/frontend/app/features/admin/RoleEditDialog.tsx
@@ -1,24 +1,22 @@
 import { useEffect, useState } from "react";
 
-import { X } from "lucide-react";
 import type {
   PlatformPermission,
   Role,
   RoleCreatePayload,
   RoleUpdatePayload,
 } from "../../services/api";
+import {
+  AppFormDialog,
+  dialogPrimaryButtonClass,
+  dialogSecondaryButtonClass,
+} from "~/components/common/AppFormDialog";
 import { Button } from "~/components/ui/button";
 import {
   formFieldClass,
   formInputClass,
   formTextareaClass,
-  modalBackdropClass,
-  modalCompactClass,
-  modalEyebrowClass,
-  modalFooterClass,
   modalFormClass,
-  modalHeaderClass,
-  modalTitleClass,
 } from "../platform/modalUi";
 import { PermissionCheckboxList } from "./PermissionCheckboxList";
 
@@ -39,7 +37,6 @@ const EMPTY_FORM: RoleFormState = {
   permission_codes: [],
 };
 
-/** 实时校验 role_code：空值不报错，提交时由必填拦截兜底。 */
 function validateRoleCode(value: string): string {
   const code = value.trim();
   if (!code) return "";
@@ -58,13 +55,6 @@ function validateRoleCode(value: string): string {
   return "";
 }
 
-const CLOSE_BUTTON_CLASS =
-  "size-[34px] rounded-[7px] border border-[#dfe6ed] bg-white hover:bg-[#f7faff] hover:border-[#b9c9da]";
-const SECONDARY_BUTTON_CLASS =
-  "h-[37px] gap-[7px] rounded-md border-[#d8e1e9] bg-white px-[15px] text-xs font-[650] text-[#56687c]";
-const PRIMARY_BUTTON_CLASS =
-  "h-[37px] gap-[7px] rounded-md border border-[#126ac3] bg-gradient-to-br from-[#1881e7] to-[#1268c9] px-[15px] text-xs font-[650] text-white shadow-[0_6px_15px_rgb(20_111_202/18%)] enabled:hover:from-[#1175d8] enabled:hover:to-[#0e5bad]";
-
 export function RoleEditDialog({
   open,
   editing,
@@ -117,7 +107,6 @@ export function RoleEditDialog({
   };
 
   const toggleCreatePermission = (code: string): void => {
-    // 新建角色为非 admin，system:* 由后端守卫禁止；此处防御性拦截
     if (code.startsWith("system:")) return;
     setForm((current) => ({
       ...current,
@@ -143,7 +132,6 @@ export function RoleEditDialog({
     }
     const payload: RoleCreatePayload | RoleUpdatePayload = editing
       ? {
-          // 内置角色 role_name 锁定；description 可改
           ...(editing.is_builtin ? {} : { role_name: form.role_name.trim() }),
           description: form.description.trim() || null,
         }
@@ -156,108 +144,91 @@ export function RoleEditDialog({
     onSubmit(payload);
   };
 
-  if (!open) return null;
-
   return (
-    <div className={modalBackdropClass} role="presentation">
-      <section className={modalCompactClass} role="dialog" aria-modal="true">
-        <div className={modalHeaderClass}>
-          <div>
-            <span className={modalEyebrowClass}>ROLE</span>
-            <h2 className={modalTitleClass}>{editing ? "编辑角色" : "新建角色"}</h2>
-          </div>
-          <Button
-            variant="ghost"
-            size="icon-sm"
-            type="button"
-            aria-label="关闭"
-            onClick={onClose}
-            className={CLOSE_BUTTON_CLASS}
-          >
-            <X size={16} />
-          </Button>
-        </div>
-        <form className={`${modalFormClass} role-create-form`} onSubmit={(event) => void handleSubmit(event)}>
-          {editing ? (
-            <label className={formFieldClass}>
-              <span>角色编码</span>
-              <input
-                className={formInputClass}
-                disabled
-                value={form.role_code}
-              />
-            </label>
-          ) : (
-            <label className={formFieldClass}>
-              <span>角色编码<span className="text-[#e74c3c]">*</span></span>
-              <input
-                className={formInputClass}
-                autoFocus
-                value={form.role_code}
-                onChange={handleRoleCodeChange}
-                placeholder="例如：qa_engineer"
-              />
-              <span className="form-hint">
-                以小写字母开头，仅含小写字母/数字/下划线/连字符（2~64 字符）
-              </span>
-              {roleCodeError && <span className="role-error">{roleCodeError}</span>}
-            </label>
-          )}
+    <AppFormDialog
+      open={open}
+      onOpenChange={(nextOpen) => {
+        if (!nextOpen) onClose();
+      }}
+      eyebrow="ROLE"
+      title={editing ? "编辑角色" : "新建角色"}
+    >
+      <form className={`${modalFormClass} role-create-form`} onSubmit={(event) => void handleSubmit(event)}>
+        {editing ? (
           <label className={formFieldClass}>
-            <span>角色名称<span className="text-[#e74c3c]">*</span></span>
+            <span>角色编码</span>
+            <input className={formInputClass} disabled value={form.role_code} />
+          </label>
+        ) : (
+          <label className={formFieldClass}>
+            <span>角色编码<span className="text-[#e74c3c]">*</span></span>
             <input
               className={formInputClass}
-              value={form.role_name}
-              disabled={editing !== null && editing.is_builtin}
-              onChange={(event) => setForm({ ...form, role_name: event.target.value })}
-              placeholder="请输入角色名称"
+              autoFocus
+              value={form.role_code}
+              onChange={handleRoleCodeChange}
+              placeholder="例如：qa_engineer"
             />
-            {editing !== null && editing.is_builtin && (
-              <span className="form-hint">内置角色名称不可修改，描述可编辑</span>
-            )}
+            <span className="form-hint">
+              以小写字母开头，仅含小写字母/数字/下划线/连字符（2~64 字符）
+            </span>
+            {roleCodeError && <span className="role-error">{roleCodeError}</span>}
           </label>
-          <label className={formFieldClass}>
-            <span>描述</span>
-            <textarea
-              className={formTextareaClass}
-              value={form.description}
-              onChange={(event) => setForm({ ...form, description: event.target.value })}
-              placeholder="请输入角色描述（可选）"
-            />
-          </label>
-          {!editing && (
-            <div className="permission-groups">
-              <div className="permission-group__title">初始权限</div>
-              <PermissionCheckboxList
-                permissions={permissions}
-                selected={form.permission_codes}
-                targetRoleCode=""
-                onToggle={toggleCreatePermission}
-              />
-            </div>
+        )}
+        <label className={formFieldClass}>
+          <span>角色名称<span className="text-[#e74c3c]">*</span></span>
+          <input
+            className={formInputClass}
+            value={form.role_name}
+            disabled={editing !== null && editing.is_builtin}
+            onChange={(event) => setForm({ ...form, role_name: event.target.value })}
+            placeholder="请输入角色名称"
+          />
+          {editing !== null && editing.is_builtin && (
+            <span className="form-hint">内置角色名称不可修改，描述可编辑</span>
           )}
-          <div className={modalFooterClass}>
-            <Button
-              variant="outline"
-              size="sm"
-              type="button"
-              onClick={onClose}
-              className={SECONDARY_BUTTON_CLASS}
-            >
-              取消
-            </Button>
-            <Button
-              variant="default"
-              size="sm"
-              type="submit"
-              disabled={saving}
-              className={PRIMARY_BUTTON_CLASS}
-            >
-              {saving ? "保存中…" : "保存"}
-            </Button>
+        </label>
+        <label className={formFieldClass}>
+          <span>描述</span>
+          <textarea
+            className={formTextareaClass}
+            value={form.description}
+            onChange={(event) => setForm({ ...form, description: event.target.value })}
+            placeholder="请输入角色描述（可选）"
+          />
+        </label>
+        {!editing && (
+          <div className="permission-groups">
+            <div className="permission-group__title">初始权限</div>
+            <PermissionCheckboxList
+              permissions={permissions}
+              selected={form.permission_codes}
+              targetRoleCode=""
+              onToggle={toggleCreatePermission}
+            />
           </div>
-        </form>
-      </section>
-    </div>
+        )}
+        <div className="mt-[3px] flex shrink-0 justify-end gap-2 border-t border-[#e8edf2] bg-white -mx-[22px] px-[22px] py-3.5">
+          <Button
+            variant="outline"
+            size="sm"
+            type="button"
+            onClick={onClose}
+            className={dialogSecondaryButtonClass}
+          >
+            取消
+          </Button>
+          <Button
+            variant="default"
+            size="sm"
+            type="submit"
+            disabled={saving}
+            className={dialogPrimaryButtonClass}
+          >
+            {saving ? "保存中…" : "保存"}
+          </Button>
+        </div>
+      </form>
+    </AppFormDialog>
   );
 }
diff --git a/frontend/app/features/admin/RoleManagementPage.tsx b/frontend/app/features/admin/RoleManagementPage.tsx
index 46f0c14..58c1a4a 100644
--- a/frontend/app/features/admin/RoleManagementPage.tsx
+++ b/frontend/app/features/admin/RoleManagementPage.tsx
@@ -10,6 +10,7 @@ import {
 } from "../../services/api";
 import { useApi, useAuth } from "../../context/AuthContext";
 import { Button } from "~/components/ui/button";
+import { ConfirmDialog } from "~/components/common/ConfirmDialog";
 import { PermissionEditDialog } from "./PermissionEditDialog";
 import { RoleEditDialog } from "./RoleEditDialog";
 import {
@@ -50,6 +51,7 @@ export function RoleManagementPage({
   // 权限配置弹窗
   const [permissionDialogOpen, setPermissionDialogOpen] = useState(false);
   const [permissionTarget, setPermissionTarget] = useState<Role | null>(null);
+  const [deleteTarget, setDeleteTarget] = useState<Role | null>(null);
 
   const canManage = user?.role_code === "admin";
 
@@ -150,9 +152,7 @@ export function RoleManagementPage({
     }
   };
 
-  const removeRole = async (role: Role): Promise<void> => {
-    if (role.is_builtin) return;
-    if (!window.confirm(`确定删除角色"${role.role_name}"吗？`)) return;
+  const executeRemoveRole = async (role: Role): Promise<void> => {
     try {
       await api.deletePlatformRole(role.role_code);
       setRoles((current) => current.filter(
@@ -271,7 +271,7 @@ export function RoleManagementPage({
                     type="button"
                     disabled={!canManage || role.is_builtin}
                     title={role.is_builtin ? "内置角色不可删除" : "删除角色"}
-                    onClick={() => void removeRole(role)}
+                    onClick={() => setDeleteTarget(role)}
                     className="h-6 gap-1 rounded-[4px] border-red-200 bg-white px-[9px] text-[11px] text-red-700 hover:bg-red-50 disabled:cursor-not-allowed disabled:opacity-[0.45]"
                   >
                     删除
@@ -306,6 +306,26 @@ export function RoleManagementPage({
           onClose={() => setPermissionDialogOpen(false)}
         />
       )}
+
+      <ConfirmDialog
+        open={deleteTarget !== null}
+        onOpenChange={(nextOpen) => {
+          if (!nextOpen) setDeleteTarget(null);
+        }}
+        title="确定删除角色？"
+        description={
+          deleteTarget
+            ? `确定删除角色"${deleteTarget.role_name}"吗？`
+            : ""
+        }
+        confirmLabel="删除"
+        destructive
+        onConfirm={async () => {
+          if (!deleteTarget || deleteTarget.is_builtin) return;
+          await executeRemoveRole(deleteTarget);
+          setDeleteTarget(null);
+        }}
+      />
     </section>
   );
 }
diff --git a/frontend/app/features/admin/UserManagementPage.tsx b/frontend/app/features/admin/UserManagementPage.tsx
index 6ff7f1c..30e84df 100644
--- a/frontend/app/features/admin/UserManagementPage.tsx
+++ b/frontend/app/features/admin/UserManagementPage.tsx
@@ -1,8 +1,14 @@
 import { useEffect, useState } from "react";
 
-import { Plus, Search, X } from "lucide-react";
+import { Plus, Search } from "lucide-react";
 import { ApiRequestError, type Employee, type Role } from "../../services/api";
 import { useApi, useAuth } from "../../context/AuthContext";
+import {
+  AppFormDialog,
+  dialogPrimaryButtonClass,
+  dialogSecondaryButtonClass,
+} from "~/components/common/AppFormDialog";
+import { ConfirmDialog } from "~/components/common/ConfirmDialog";
 import { Button } from "~/components/ui/button";
 import { Input } from "~/components/ui/input";
 import {
@@ -17,13 +23,7 @@ import { AdminColgroup, USER_PROJECT_COL_WIDTHS } from "./AdminTable";
 import {
   formFieldClass,
   formInputClass,
-  modalBackdropClass,
-  modalCompactClass,
-  modalEyebrowClass,
-  modalFooterClass,
   modalFormClass,
-  modalHeaderClass,
-  modalTitleClass,
 } from "../platform/modalUi";
 
 import "../../styles/admin.css";
@@ -37,10 +37,6 @@ const EMPTY_FORM = {
   status: "active" as "active" | "disabled" | "locked",
 };
 
-const CLOSE_BUTTON_CLASS =
-  "size-[34px] rounded-[7px] border border-[#dfe6ed] bg-white hover:bg-[#f7faff] hover:border-[#b9c9da]";
-const SECONDARY_BUTTON_CLASS =
-  "h-[37px] gap-[7px] rounded-md border-[#d8e1e9] bg-white px-[15px] text-xs font-[650] text-[#56687c]";
 const PRIMARY_BUTTON_CLASS =
   "h-[37px] gap-[7px] rounded-md border border-[#126ac3] bg-gradient-to-br from-[#1881e7] to-[#1268c9] px-[15px] text-xs font-[650] text-white shadow-[0_6px_15px_rgb(20_111_202/18%)] enabled:hover:from-[#1175d8] enabled:hover:to-[#0e5bad]";
 const FORM_INPUT_CLASS =
@@ -67,6 +63,7 @@ export function UserManagementPage({
   const [dialogOpen, setDialogOpen] = useState(false);
   const [form, setForm] = useState(EMPTY_FORM);
   const [userSearchTerm, setUserSearchTerm] = useState("");
+  const [deleteTarget, setDeleteTarget] = useState<Employee | null>(null);
 
   const canManage = user?.role_code === "admin";
 
@@ -179,8 +176,7 @@ export function UserManagementPage({
     }
   };
 
-  const remove = async (employee: Employee): Promise<void> => {
-    if (!window.confirm(`确定从平台删除用户"${employee.display_name}"吗？`)) return;
+  const executeRemove = async (employee: Employee): Promise<void> => {
     try {
       await api.deletePlatformEmployee(employee.user_id);
       setEmployees((current) => current.filter((item) => item.user_id !== employee.user_id));
@@ -274,7 +270,7 @@ export function UserManagementPage({
                         type="button"
                         disabled={!canManage || isProtectedAdmin}
                         title={isProtectedAdmin ? "管理员账号不能删除" : "删除"}
-                        onClick={() => void remove(employee)}
+                        onClick={() => setDeleteTarget(employee)}
                         className={ROW_DANGER_BUTTON_CLASS}
                       >
                         删除
@@ -287,26 +283,15 @@ export function UserManagementPage({
         </TableBody>
       </Table>
 
-      {dialogOpen && (
-        <div className={modalBackdropClass} role="presentation">
-          <section className={modalCompactClass} role="dialog" aria-modal="true">
-            <div className={modalHeaderClass}>
-              <div>
-                <span className={modalEyebrowClass}>EMPLOYEE</span>
-                <h2 className={modalTitleClass}>{editing ? "编辑用户" : "添加用户"}</h2>
-              </div>
-              <Button
-                variant="ghost"
-                size="icon-sm"
-                type="button"
-                aria-label="关闭"
-                onClick={() => setDialogOpen(false)}
-                className={CLOSE_BUTTON_CLASS}
-              >
-                <X size={16} />
-              </Button>
-            </div>
-            <form className={modalFormClass} onSubmit={(event) => void submit(event)}>
+      <AppFormDialog
+        open={dialogOpen}
+        onOpenChange={(nextOpen) => {
+          if (!nextOpen) setDialogOpen(false);
+        }}
+        eyebrow="EMPLOYEE"
+        title={editing ? "编辑用户" : "添加用户"}
+      >
+        <form className={modalFormClass} onSubmit={(event) => void submit(event)}>
               <label className={formFieldClass}>
                 <span>姓名<span className="text-[#e74c3c]">*</span></span>
                 <Input
@@ -388,13 +373,13 @@ export function UserManagementPage({
                   </select>
                 </label>
               )}
-              <div className={modalFooterClass}>
+              <div className="mt-[3px] flex shrink-0 justify-end gap-2 border-t border-[#e8edf2] bg-white -mx-[22px] px-[22px] py-3.5">
                 <Button
                   variant="outline"
                   size="sm"
                   type="button"
                   onClick={() => setDialogOpen(false)}
-                  className={SECONDARY_BUTTON_CLASS}
+                  className={dialogSecondaryButtonClass}
                 >
                   取消
                 </Button>
@@ -403,15 +388,33 @@ export function UserManagementPage({
                   size="sm"
                   type="submit"
                   disabled={saving}
-                  className={PRIMARY_BUTTON_CLASS}
+                  className={dialogPrimaryButtonClass}
                 >
                   {saving ? "保存中…" : "保存"}
                 </Button>
               </div>
             </form>
-          </section>
-        </div>
-      )}
+      </AppFormDialog>
+
+      <ConfirmDialog
+        open={deleteTarget !== null}
+        onOpenChange={(nextOpen) => {
+          if (!nextOpen) setDeleteTarget(null);
+        }}
+        title="确定删除用户？"
+        description={
+          deleteTarget
+            ? `确定从平台删除用户"${deleteTarget.display_name}"吗？`
+            : ""
+        }
+        confirmLabel="删除"
+        destructive
+        onConfirm={async () => {
+          if (!deleteTarget) return;
+          await executeRemove(deleteTarget);
+          setDeleteTarget(null);
+        }}
+      />
     </section>
   );
 }
diff --git a/frontend/app/features/platform/CreateFolderModal.tsx b/frontend/app/features/platform/CreateFolderModal.tsx
index 5fe92a7..8cd21aa 100644
--- a/frontend/app/features/platform/CreateFolderModal.tsx
+++ b/frontend/app/features/platform/CreateFolderModal.tsx
@@ -1,19 +1,16 @@
 import { type FormEvent } from "react";
 import Icon from "../../components/common/Icon";
+import {
+  AppFormDialog,
+  dialogPrimaryButtonClass,
+  dialogSecondaryButtonClass,
+} from "~/components/common/AppFormDialog";
+import { Button } from "~/components/ui/button";
 import {
   destinationChipClass,
   formFieldClass,
   formInputClass,
-  iconButtonClass,
-  modalBackdropClass,
-  modalCompactClass,
-  modalEyebrowClass,
-  modalFooterClass,
   modalFormClass,
-  modalHeaderClass,
-  modalTitleClass,
-  primaryButtonClass,
-  secondaryButtonClass,
 } from "./modalUi";
 
 type CreateFolderModalProps = {
@@ -35,26 +32,16 @@ export function CreateFolderModal({
   onSubmit,
   onClose,
 }: CreateFolderModalProps) {
-  if (!open) return null;
-
   return (
-    <div className={modalBackdropClass} role="presentation">
-      <section className={modalCompactClass} role="dialog" aria-modal="true">
-        <div className={modalHeaderClass}>
-          <div>
-            <span className={modalEyebrowClass}>WORKSPACE</span>
-            <h2 className={modalTitleClass}>新建文件夹</h2>
-          </div>
-          <button
-            className={iconButtonClass}
-            type="button"
-            aria-label="关闭"
-            onClick={onClose}
-          >
-            <Icon name="close" />
-          </button>
-        </div>
-        <form className={modalFormClass} onSubmit={onSubmit}>
+    <AppFormDialog
+      open={open}
+      onOpenChange={(nextOpen) => {
+        if (!nextOpen) onClose();
+      }}
+      eyebrow="WORKSPACE"
+      title="新建文件夹"
+    >
+      <form className={modalFormClass} onSubmit={onSubmit}>
           <div className={destinationChipClass}>
             <Icon name="folder" size={16} />
             创建到：{parentPath || "个人根目录"}
@@ -70,27 +57,30 @@ export function CreateFolderModal({
               onChange={(event) => onNameChange(event.target.value)}
             />
           </label>
-          <div className={modalFooterClass}>
-            <button
-              className={secondaryButtonClass}
+          <div className="mt-[3px] flex shrink-0 justify-end gap-2 border-t border-[#e8edf2] bg-white -mx-[22px] px-[22px] py-3.5">
+            <Button
+              variant="outline"
+              size="sm"
               type="button"
               onClick={onClose}
+              className={dialogSecondaryButtonClass}
             >
               取消
-            </button>
-            <button
-              className={primaryButtonClass}
+            </Button>
+            <Button
+              variant="default"
+              size="sm"
               type="submit"
               disabled={busy || !name.trim()}
+              className={dialogPrimaryButtonClass}
             >
               {busy
                 ? <span className="button-spinner" />
                 : <Icon name="folder" size={16} />}
               {busy ? "正在创建…" : "创建文件夹"}
-            </button>
+            </Button>
           </div>
         </form>
-      </section>
-    </div>
+    </AppFormDialog>
   );
 }
diff --git a/frontend/app/features/platform/CreateScriptModal.tsx b/frontend/app/features/platform/CreateScriptModal.tsx
index b4076fc..985310c 100644
--- a/frontend/app/features/platform/CreateScriptModal.tsx
+++ b/frontend/app/features/platform/CreateScriptModal.tsx
@@ -1,21 +1,18 @@
 import { type FormEvent } from "react";
 import Icon from "../../components/common/Icon";
 import type { ScriptType, Visibility } from "../../services/api";
+import {
+  AppFormDialog,
+  dialogPrimaryButtonClass,
+  dialogSecondaryButtonClass,
+} from "~/components/common/AppFormDialog";
+import { Button } from "~/components/ui/button";
 import {
   destinationChipClass,
   formFieldClass,
   formHintClass,
   formInputClass,
-  iconButtonClass,
-  modalBackdropClass,
-  modalEyebrowClass,
-  modalFooterClass,
   modalFormClass,
-  modalHeaderClass,
-  modalPanelClass,
-  modalTitleClass,
-  primaryButtonClass,
-  secondaryButtonClass,
 } from "./modalUi";
 
 type NewScriptForm = {
@@ -48,26 +45,17 @@ export function CreateScriptModal({
   onSubmit,
   onClose,
 }: CreateScriptModalProps) {
-  if (!open) return null;
-
   return (
-    <div className={modalBackdropClass} role="presentation">
-      <section className={modalPanelClass} role="dialog" aria-modal="true">
-        <div className={modalHeaderClass}>
-          <div>
-            <span className={modalEyebrowClass}>工作副本</span>
-            <h2 className={modalTitleClass}>新建构建脚本</h2>
-          </div>
-          <button
-            className={iconButtonClass}
-            type="button"
-            aria-label="关闭"
-            onClick={onClose}
-          >
-            <Icon name="close" />
-          </button>
-        </div>
-        <form className={modalFormClass} onSubmit={onSubmit}>
+    <AppFormDialog
+      open={open}
+      onOpenChange={(nextOpen) => {
+        if (!nextOpen) onClose();
+      }}
+      eyebrow="工作副本"
+      title="新建构建脚本"
+      size="panel"
+    >
+      <form className={modalFormClass} onSubmit={onSubmit}>
           <div className={destinationChipClass}>
             <Icon name="folder" size={16} />
             保存到：{form.parentPath || "个人根目录"}
@@ -173,25 +161,28 @@ export function CreateScriptModal({
             </select>
           </label>
 
-          <div className={modalFooterClass}>
-            <button
-              className={secondaryButtonClass}
+          <div className="mt-[3px] flex shrink-0 justify-end gap-2 border-t border-[#e8edf2] bg-white -mx-[22px] px-[22px] py-3.5">
+            <Button
+              variant="outline"
+              size="sm"
               type="button"
               onClick={onClose}
+              className={dialogSecondaryButtonClass}
             >
               取消
-            </button>
-            <button
-              className={primaryButtonClass}
+            </Button>
+            <Button
+              variant="default"
+              size="sm"
               type="submit"
               disabled={creating || !form.name.trim()}
+              className={dialogPrimaryButtonClass}
             >
               {creating ? <span className="button-spinner" /> : <Icon name="plus" size={16} />}
               {creating ? "正在创建…" : "创建脚本"}
-            </button>
+            </Button>
           </div>
         </form>
-      </section>
-    </div>
+    </AppFormDialog>
   );
 }
diff --git a/frontend/app/features/platform/DataResourceUploadModal.tsx b/frontend/app/features/platform/DataResourceUploadModal.tsx
index 66db078..0f6a9f5 100644
--- a/frontend/app/features/platform/DataResourceUploadModal.tsx
+++ b/frontend/app/features/platform/DataResourceUploadModal.tsx
@@ -1,21 +1,18 @@
 import { type FormEvent } from "react";
 import Icon from "../../components/common/Icon";
 import type { Visibility } from "../../services/api";
+import {
+  AppFormDialog,
+  dialogPrimaryButtonClass,
+  dialogSecondaryButtonClass,
+} from "~/components/common/AppFormDialog";
+import { Button } from "~/components/ui/button";
 import {
   formFieldClass,
   formHintClass,
   formInputClass,
   formTextareaClass,
-  iconButtonClass,
-  modalBackdropClass,
-  modalCompactClass,
-  modalEyebrowClass,
-  modalFooterClass,
   modalFormClass,
-  modalHeaderClass,
-  modalTitleClass,
-  primaryButtonClass,
-  secondaryButtonClass,
 } from "./modalUi";
 
 type DataResourceUploadModalProps = {
@@ -51,113 +48,106 @@ export function DataResourceUploadModal({
   onSubmit,
   onClose,
 }: DataResourceUploadModalProps) {
-  if (!open) return null;
-
   const finalTarget = targetPath.trim();
   const finalPath = finalTarget
     ? `${finalTarget}/${file?.name ?? ""}`
     : file?.name ?? "";
 
   return (
-    <div className={modalBackdropClass} role="presentation">
-      <section className={modalCompactClass} role="dialog" aria-modal="true">
-        <div className={modalHeaderClass}>
-          <div>
-            <span className={modalEyebrowClass}>数据资源</span>
-            <h2 className={modalTitleClass}>上传数据文件</h2>
+    <AppFormDialog
+      open={open}
+      onOpenChange={(nextOpen) => {
+        if (!nextOpen && !uploading) onClose();
+      }}
+      eyebrow="数据资源"
+      title="上传数据文件"
+    >
+      <form className={modalFormClass} onSubmit={onSubmit}>
+        <label className={formFieldClass}>
+          <span>已选文件</span>
+          <div className="font-normal text-[#283a4e]">
+            {file ? file.name : "未选择文件"}
           </div>
-          <button
-            className={iconButtonClass}
-            type="button"
-            aria-label="关闭"
-            onClick={onClose}
+        </label>
+        <label className={formFieldClass}>
+          <span>资源名称</span>
+          <input
+            className={formInputClass}
+            autoFocus
+            maxLength={255}
+            placeholder="例如：训练数据"
+            value={resourceName}
+            onChange={(event) => onNameChange(event.target.value)}
+            required
+          />
+        </label>
+        <label className={formFieldClass}>
+          <span>子目录</span>
+          <input
+            className={formInputClass}
+            type="text"
+            maxLength={1024}
+            placeholder="例如：train/v1（留空上传到当前目录）"
+            value={targetPath}
+            onChange={(event) => onTargetPathChange(event.target.value)}
+          />
+          <small className={formHintClass}>
+            {parentPath
+              ? `当前位于 ${parentPath || "根目录"} · 最终路径：${finalPath || "—"}`
+              : `最终路径：${finalPath || "—"}`}
+          </small>
+        </label>
+        <label className={formFieldClass}>
+          <span>可见性</span>
+          <select
+            className={formInputClass}
+            value={visibility}
+            onChange={(event) =>
+              onVisibilityChange(event.target.value as Visibility)
+            }
           >
-            <Icon name="close" />
-          </button>
+            <option value="private">私有</option>
+            <option value="workspace">工作区</option>
+            <option value="public">公开</option>
+          </select>
+        </label>
+        <label className={formFieldClass}>
+          <span>描述</span>
+          <textarea
+            className={formTextareaClass}
+            rows={3}
+            placeholder="可选描述"
+            value={description}
+            onChange={(event) => onDescriptionChange(event.target.value)}
+          />
+        </label>
+        <div className="mt-[3px] flex shrink-0 justify-end gap-2 border-t border-[#e8edf2] bg-white -mx-[22px] px-[22px] py-3.5">
+          <Button
+            variant="outline"
+            size="sm"
+            type="button"
+            onClick={onClose}
+            disabled={uploading}
+            className={dialogSecondaryButtonClass}
+          >
+            取消
+          </Button>
+          <Button
+            variant="default"
+            size="sm"
+            type="submit"
+            disabled={uploading || !resourceName.trim()}
+            className={dialogPrimaryButtonClass}
+          >
+            {uploading ? (
+              <span className="button-spinner" />
+            ) : (
+              <Icon name="upload" size={16} />
+            )}
+            {uploading ? "上传中…" : "上传"}
+          </Button>
         </div>
-        <form className={modalFormClass} onSubmit={onSubmit}>
-          <label className={formFieldClass}>
-            <span>已选文件</span>
-            <div className="font-normal text-[#283a4e]">
-              {file ? file.name : "未选择文件"}
-            </div>
-          </label>
-          <label className={formFieldClass}>
-            <span>资源名称</span>
-            <input
-              className={formInputClass}
-              autoFocus
-              maxLength={255}
-              placeholder="例如：训练数据"
-              value={resourceName}
-              onChange={(event) => onNameChange(event.target.value)}
-              required
-            />
-          </label>
-          <label className={formFieldClass}>
-            <span>子目录</span>
-            <input
-              className={formInputClass}
-              type="text"
-              maxLength={1024}
-              placeholder="例如：train/v1（留空上传到当前目录）"
-              value={targetPath}
-              onChange={(event) => onTargetPathChange(event.target.value)}
-            />
-            <small className={formHintClass}>
-              {parentPath
-                ? `当前位于 ${parentPath || "根目录"} · 最终路径：${finalPath || "—"}`
-                : `最终路径：${finalPath || "—"}`}
-            </small>
-          </label>
-          <label className={formFieldClass}>
-            <span>可见性</span>
-            <select
-              className={formInputClass}
-              value={visibility}
-              onChange={(event) =>
-                onVisibilityChange(event.target.value as Visibility)
-              }
-            >
-              <option value="private">私有</option>
-              <option value="workspace">工作区</option>
-              <option value="public">公开</option>
-            </select>
-          </label>
-          <label className={formFieldClass}>
-            <span>描述</span>
-            <textarea
-              className={formTextareaClass}
-              rows={3}
-              placeholder="可选描述"
-              value={description}
-              onChange={(event) => onDescriptionChange(event.target.value)}
-            />
-          </label>
-          <div className={modalFooterClass}>
-            <button
-              className={secondaryButtonClass}
-              type="button"
-              onClick={onClose}
-              disabled={uploading}
-            >
-              取消
-            </button>
-            <button
-              className={primaryButtonClass}
-              type="submit"
-              disabled={uploading || !resourceName.trim()}
-            >
-              {uploading ? (
-                <span className="button-spinner" />
-              ) : (
-                <Icon name="upload" size={16} />
-              )}
-              {uploading ? "上传中…" : "上传"}
-            </button>
-          </div>
-        </form>
-      </section>
-    </div>
+      </form>
+    </AppFormDialog>
   );
 }
diff --git a/frontend/app/features/platform/PublishModal.tsx b/frontend/app/features/platform/PublishModal.tsx
index cc83d3d..f721e0b 100644
--- a/frontend/app/features/platform/PublishModal.tsx
+++ b/frontend/app/features/platform/PublishModal.tsx
@@ -2,21 +2,18 @@ import { type FormEvent } from "react";
 import Icon from "../../components/common/Icon";
 import type { ScriptItem, Visibility } from "../../services/api";
 import { scriptIcon } from "../../features/platform/WorkspaceTree";
+import {
+  AppFormDialog,
+  dialogPrimaryButtonClass,
+  dialogSecondaryButtonClass,
+} from "~/components/common/AppFormDialog";
+import { Button } from "~/components/ui/button";
 import {
   formFieldClass,
   formHintClass,
   formInputClass,
   formTextareaClass,
-  iconButtonClass,
-  modalBackdropClass,
-  modalEyebrowClass,
-  modalFooterClass,
   modalFormClass,
-  modalHeaderClass,
-  modalPanelClass,
-  modalTitleClass,
-  primaryButtonClass,
-  secondaryButtonClass,
 } from "./modalUi";
 
 type PublishModalProps = {
@@ -40,26 +37,18 @@ export function PublishModal({
   onSubmit,
   onClose,
 }: PublishModalProps) {
-  if (!publishTarget) return null;
-
   return (
-    <div className={modalBackdropClass} role="presentation">
-      <section className={modalPanelClass} role="dialog" aria-modal="true">
-        <div className={modalHeaderClass}>
-          <div>
-            <span className={modalEyebrowClass}>不可变制品</span>
-            <h2 className={modalTitleClass}>发布稳定版本</h2>
-          </div>
-          <button
-            className={iconButtonClass}
-            type="button"
-            aria-label="关闭"
-            onClick={onClose}
-          >
-            <Icon name="close" />
-          </button>
-        </div>
-        <form className={modalFormClass} onSubmit={onSubmit}>
+    <AppFormDialog
+      open={publishTarget !== null}
+      onOpenChange={(nextOpen) => {
+        if (!nextOpen) onClose();
+      }}
+      eyebrow="不可变制品"
+      title="发布稳定版本"
+      size="panel"
+    >
+      <form className={modalFormClass} onSubmit={onSubmit}>
+          {publishTarget ? (
           <div className="mb-[17px] flex items-center gap-2.5 rounded-[7px] border border-[#dce6ef] bg-[#f8fbfd] px-3 py-[11px]">
             <span
               className={`grid size-[25px] shrink-0 place-items-center rounded-[5px] ${
@@ -79,6 +68,7 @@ export function PublishModal({
               </small>
             </span>
           </div>
+          ) : null}
           <label className={formFieldClass}>
             <span>发布说明</span>
             <textarea
@@ -105,27 +95,30 @@ export function PublishModal({
               <option value="public">公开</option>
             </select>
           </label>
-          <div className={modalFooterClass}>
-            <button
-              className={secondaryButtonClass}
+          <div className="mt-[3px] flex shrink-0 justify-end gap-2 border-t border-[#e8edf2] bg-white -mx-[22px] px-[22px] py-3.5">
+            <Button
+              variant="outline"
+              size="sm"
               type="button"
               onClick={onClose}
+              className={dialogSecondaryButtonClass}
             >
               取消
-            </button>
-            <button
-              className={primaryButtonClass}
+            </Button>
+            <Button
+              variant="default"
+              size="sm"
               type="submit"
               disabled={publishing}
+              className={dialogPrimaryButtonClass}
             >
               {publishing
                 ? <span className="button-spinner" />
                 : <Icon name="release" size={16} />}
               {publishing ? "正在发布…" : "确认发布"}
-            </button>
+            </Button>
           </div>
         </form>
-      </section>
-    </div>
+    </AppFormDialog>
   );
 }
diff --git a/frontend/app/features/platform/VersionReceiptModal.tsx b/frontend/app/features/platform/VersionReceiptModal.tsx
index 5a2bbc0..c8e70ad 100644
--- a/frontend/app/features/platform/VersionReceiptModal.tsx
+++ b/frontend/app/features/platform/VersionReceiptModal.tsx
@@ -2,11 +2,11 @@ import Icon from "../../components/common/Icon";
 import type { StableVersion } from "../../services/api";
 import { copyToClipboard } from "../../lib/clipboard";
 import {
-  modalBackdropClass,
-  modalEyebrowClass,
-  modalPanelClass,
-  primaryButtonClass,
-} from "./modalUi";
+  AppFormDialog,
+  dialogPrimaryButtonClass,
+} from "~/components/common/AppFormDialog";
+import { Button } from "~/components/ui/button";
+import { modalEyebrowClass } from "./modalUi";
 
 type VersionReceiptModalProps = {
   publishedVersion: StableVersion | null;
@@ -19,50 +19,51 @@ export function VersionReceiptModal({
   onClose,
   onCopy,
 }: VersionReceiptModalProps) {
-  if (!publishedVersion) return null;
-
   return (
-    <div className={modalBackdropClass} role="presentation">
-      <section
-        className={`${modalPanelClass} w-[min(470px,calc(100vw-40px))] px-7 py-[30px] pb-[25px] text-center`}
-        role="dialog"
-        aria-modal="true"
-      >
-        <div className="mx-auto mb-3.5 grid size-[58px] place-items-center rounded-full bg-gradient-to-br from-[#24b67d] to-[#149566] text-white shadow-[0_9px_24px_rgb(25_157_104/25%)]">
-          <Icon name="check" size={28} />
-        </div>
-        <span className={modalEyebrowClass}>STABLE VERSION</span>
-        <h2 className="mb-2 mt-[5px] text-xl text-[#24374a]">
-          稳定版本发布成功
-        </h2>
-        <p className="mx-auto mb-5 max-w-[360px] text-[11px] leading-[1.65] text-[#718093]">
-          {publishedVersion.version_label} 已成为不可变制品，
-          后续调度将通过 versions_id 引用它。
-        </p>
-        <div className="grid grid-cols-[auto_minmax(0,1fr)_auto] items-center gap-[9px] rounded-[7px] border border-[#dce6ee] bg-[#f7fafc] px-3 py-[11px] text-left">
-          <span className="text-[9px] text-[#8795a4]">versions_id</span>
-          <code className="truncate text-[10px] text-[#275271]">
-            {publishedVersion.versions_id}
-          </code>
-          <button
-            type="button"
-            className="cursor-pointer rounded border border-[#bad3e8] bg-white px-2 py-1 text-[9px] text-[#2475b7]"
-            onClick={async () => {
-              await copyToClipboard(publishedVersion.versions_id);
-              onCopy("versions_id 已复制");
-            }}
-          >
-            复制
-          </button>
-        </div>
+    <AppFormDialog
+      open={publishedVersion !== null}
+      onOpenChange={(nextOpen) => {
+        if (!nextOpen) onClose();
+      }}
+      showCloseButton={false}
+      contentClassName="sm:max-w-[min(470px,calc(100vw-40px))] px-7 py-[30px] pb-[25px] text-center"
+      bodyClassName="overflow-visible"
+    >
+      <div className="mx-auto mb-3.5 grid size-[58px] place-items-center rounded-full bg-gradient-to-br from-[#24b67d] to-[#149566] text-white shadow-[0_9px_24px_rgb(25_157_104/25%)]">
+        <Icon name="check" size={28} />
+      </div>
+      <span className={modalEyebrowClass}>STABLE VERSION</span>
+      <h2 className="mb-2 mt-[5px] text-xl text-[#24374a]">
+        稳定版本发布成功
+      </h2>
+      <p className="mx-auto mb-5 max-w-[360px] text-[11px] leading-[1.65] text-[#718093]">
+        {publishedVersion?.version_label} 已成为不可变制品，
+        后续调度将通过 versions_id 引用它。
+      </p>
+      <div className="grid grid-cols-[auto_minmax(0,1fr)_auto] items-center gap-[9px] rounded-[7px] border border-[#dce6ee] bg-[#f7fafc] px-3 py-[11px] text-left">
+        <span className="text-[9px] text-[#8795a4]">versions_id</span>
+        <code className="truncate text-[10px] text-[#275271]">
+          {publishedVersion?.versions_id}
+        </code>
         <button
-          className={`${primaryButtonClass} mt-[17px] h-[39px] w-full border-0 bg-[#1976cf] shadow-none`}
           type="button"
-          onClick={onClose}
+          className="cursor-pointer rounded border border-[#bad3e8] bg-white px-2 py-1 text-[9px] text-[#2475b7]"
+          onClick={async () => {
+            if (!publishedVersion) return;
+            await copyToClipboard(publishedVersion.versions_id);
+            onCopy("versions_id 已复制");
+          }}
         >
-          完成
+          复制
         </button>
-      </section>
-    </div>
+      </div>
+      <Button
+        className={`${dialogPrimaryButtonClass} mt-[17px] h-[39px] w-full border-0 bg-[#1976cf] shadow-none`}
+        type="button"
+        onClick={onClose}
+      >
+        完成
+      </Button>
+    </AppFormDialog>
   );
 }
diff --git a/frontend/app/features/platform/modalUi.ts b/frontend/app/features/platform/modalUi.ts
index 202d850..12f8ffb 100644
--- a/frontend/app/features/platform/modalUi.ts
+++ b/frontend/app/features/platform/modalUi.ts
@@ -20,7 +20,7 @@ export const modalTitleClass = "mt-1 text-[19px] text-[#1c2d42]";
 export const modalFormClass = "flex-1 overflow-y-auto px-[22px] pt-[19px]";
 
 export const modalFooterClass =
-  "mt-[3px] flex shrink-0 justify-end gap-2 border-t border-[#e8edf2] bg-[#fafbfc] rounded-b-[11px] px-[22px] py-3.5";
+  "mt-[3px] flex shrink-0 justify-end gap-2 border-t border-[#e8edf2] bg-white rounded-b-[11px] px-[22px] py-3.5";
 
 export const iconButtonClass =
   "grid size-[34px] cursor-pointer place-items-center rounded-[7px] border border-[#dfe6ed] bg-white hover:border-[#b9c9da] hover:bg-[#f7faff]";
diff --git a/frontend/app/features/schedules/SchedulePage.tsx b/frontend/app/features/schedules/SchedulePage.tsx
index efe6848..1839874 100644
--- a/frontend/app/features/schedules/SchedulePage.tsx
+++ b/frontend/app/features/schedules/SchedulePage.tsx
@@ -31,14 +31,13 @@ import { useApi, useAuth } from "~/context/AuthContext";
 import {
   formFieldClass,
   formInputClass,
-  modalBackdropClass,
-  modalCompactClass,
-  modalEyebrowClass,
-  modalFooterClass,
   modalFormClass,
-  modalHeaderClass,
-  modalTitleClass,
 } from "~/features/platform/modalUi";
+import {
+  AppFormDialog,
+  dialogPrimaryButtonClass,
+  dialogSecondaryButtonClass,
+} from "~/components/common/AppFormDialog";
 import { NodeInspector } from "./NodeInspector";
 import { RunHistory } from "./RunHistory";
 import { ScheduleInspector } from "./ScheduleInspector";
@@ -762,34 +761,16 @@ export default function SchedulePage({
         </div>
       )}
 
-      {createDialogOpen && (
-        <div className={modalBackdropClass} role="presentation">
-          <section
-            className={modalCompactClass}
-            role="dialog"
-            aria-modal="true"
-            aria-labelledby="create-schedule-title"
-          >
-            <div className={modalHeaderClass}>
-              <div>
-                <span className={modalEyebrowClass}>SCHEDULE</span>
-                <h2 id="create-schedule-title" className={modalTitleClass}>
-                  新建调度方案
-                </h2>
-              </div>
-              <Button
-                className="size-[34px] rounded-[7px] border-[#dfe6ed] bg-white hover:border-[#b9c9da] hover:bg-[#f7faff]"
-                type="button"
-                variant="ghost"
-                size="icon-lg"
-                aria-label="关闭"
-                disabled={Boolean(busy)}
-                onClick={() => setCreateDialogOpen(false)}
-              >
-                <X size={14} />
-              </Button>
-            </div>
-            <form className={modalFormClass} onSubmit={handleCreateScheduleSubmit}>
+      <AppFormDialog
+        open={createDialogOpen}
+        onOpenChange={(nextOpen) => {
+          if (!nextOpen && !busy) setCreateDialogOpen(false);
+        }}
+        eyebrow="SCHEDULE"
+        title="新建调度方案"
+        titleId="create-schedule-title"
+      >
+        <form className={modalFormClass} onSubmit={handleCreateScheduleSubmit}>
               <label className={formFieldClass}>
                 <span>调度方案名称</span>
                 <input
@@ -802,19 +783,23 @@ export default function SchedulePage({
                   onFocus={(event) => event.currentTarget.select()}
                 />
               </label>
-              <div className={modalFooterClass}>
+              <div className="mt-[3px] flex shrink-0 justify-end gap-2 border-t border-[#e8edf2] bg-white -mx-[22px] px-[22px] py-3.5">
                 <Button
                   type="button"
-                  variant="secondary"
+                  variant="outline"
+                  size="sm"
                   disabled={Boolean(busy)}
                   onClick={() => setCreateDialogOpen(false)}
+                  className={dialogSecondaryButtonClass}
                 >
                   取消
                 </Button>
                 <Button
                   type="submit"
                   variant="default"
+                  size="sm"
                   disabled={Boolean(busy) || !newScheduleName.trim()}
+                  className={dialogPrimaryButtonClass}
                 >
                   {busy === "create-schedule"
                     ? <span className="button-spinner" />
@@ -823,9 +808,7 @@ export default function SchedulePage({
                 </Button>
               </div>
             </form>
-          </section>
-        </div>
-      )}
+      </AppFormDialog>
 
       {busy && (
         <div