feat(groups): 添加从其他分组复制账号功能

- 创建分组时可选择从已有分组复制账号
- 编辑分组时支持同步账号（全量替换操作）
- 仅允许选择相同平台的源分组
- 添加完整的数据校验：去重、自引用检查、平台一致性检查
- 前端支持多选源分组，带提示说明操作行为

backend/internal/handler/admin/group_handler.go

@@ -43,6 +43,8 @@ type CreateGroupRequest struct {
 	// 模型路由配置（仅 anthropic 平台使用）
 	ModelRouting        map[string][]int64 `json:"model_routing"`
 	ModelRoutingEnabled bool               `json:"model_routing_enabled"`
+	// 从指定分组复制账号（创建后自动绑定）
+	CopyAccountsFromGroupIDs []int64 `json:"copy_accounts_from_group_ids"`
 }
 
 // UpdateGroupRequest represents update group request
@@ -66,6 +68,8 @@ type UpdateGroupRequest struct {
 	// 模型路由配置（仅 anthropic 平台使用）
 	ModelRouting        map[string][]int64 `json:"model_routing"`
 	ModelRoutingEnabled *bool              `json:"model_routing_enabled"`
+	// 从指定分组复制账号（同步操作：先清空当前分组的账号绑定，再绑定源分组的账号）
+	CopyAccountsFromGroupIDs []int64 `json:"copy_accounts_from_group_ids"`
 }
 
 // List handles listing all groups with pagination
@@ -155,22 +159,23 @@ func (h *GroupHandler) Create(c *gin.Context) {
 	}
 
 	group, err := h.adminService.CreateGroup(c.Request.Context(), &service.CreateGroupInput{
-		Name:                req.Name,
-		Description:         req.Description,
-		Platform:            req.Platform,
-		RateMultiplier:      req.RateMultiplier,
-		IsExclusive:         req.IsExclusive,
-		SubscriptionType:    req.SubscriptionType,
-		DailyLimitUSD:       req.DailyLimitUSD,
-		WeeklyLimitUSD:      req.WeeklyLimitUSD,
-		MonthlyLimitUSD:     req.MonthlyLimitUSD,
-		ImagePrice1K:        req.ImagePrice1K,
-		ImagePrice2K:        req.ImagePrice2K,
-		ImagePrice4K:        req.ImagePrice4K,
-		ClaudeCodeOnly:      req.ClaudeCodeOnly,
-		FallbackGroupID:     req.FallbackGroupID,
-		ModelRouting:        req.ModelRouting,
-		ModelRoutingEnabled: req.ModelRoutingEnabled,
+		Name:                     req.Name,
+		Description:              req.Description,
+		Platform:                 req.Platform,
+		RateMultiplier:           req.RateMultiplier,
+		IsExclusive:              req.IsExclusive,
+		SubscriptionType:         req.SubscriptionType,
+		DailyLimitUSD:            req.DailyLimitUSD,
+		WeeklyLimitUSD:           req.WeeklyLimitUSD,
+		MonthlyLimitUSD:          req.MonthlyLimitUSD,
+		ImagePrice1K:             req.ImagePrice1K,
+		ImagePrice2K:             req.ImagePrice2K,
+		ImagePrice4K:             req.ImagePrice4K,
+		ClaudeCodeOnly:           req.ClaudeCodeOnly,
+		FallbackGroupID:          req.FallbackGroupID,
+		ModelRouting:             req.ModelRouting,
+		ModelRoutingEnabled:      req.ModelRoutingEnabled,
+		CopyAccountsFromGroupIDs: req.CopyAccountsFromGroupIDs,
 	})
 	if err != nil {
 		response.ErrorFrom(c, err)
@@ -196,23 +201,24 @@ func (h *GroupHandler) Update(c *gin.Context) {
 	}
 
 	group, err := h.adminService.UpdateGroup(c.Request.Context(), groupID, &service.UpdateGroupInput{
-		Name:                req.Name,
-		Description:         req.Description,
-		Platform:            req.Platform,
-		RateMultiplier:      req.RateMultiplier,
-		IsExclusive:         req.IsExclusive,
-		Status:              req.Status,
-		SubscriptionType:    req.SubscriptionType,
-		DailyLimitUSD:       req.DailyLimitUSD,
-		WeeklyLimitUSD:      req.WeeklyLimitUSD,
-		MonthlyLimitUSD:     req.MonthlyLimitUSD,
-		ImagePrice1K:        req.ImagePrice1K,
-		ImagePrice2K:        req.ImagePrice2K,
-		ImagePrice4K:        req.ImagePrice4K,
-		ClaudeCodeOnly:      req.ClaudeCodeOnly,
-		FallbackGroupID:     req.FallbackGroupID,
-		ModelRouting:        req.ModelRouting,
-		ModelRoutingEnabled: req.ModelRoutingEnabled,
+		Name:                     req.Name,
+		Description:              req.Description,
+		Platform:                 req.Platform,
+		RateMultiplier:           req.RateMultiplier,
+		IsExclusive:              req.IsExclusive,
+		Status:                   req.Status,
+		SubscriptionType:         req.SubscriptionType,
+		DailyLimitUSD:            req.DailyLimitUSD,
+		WeeklyLimitUSD:           req.WeeklyLimitUSD,
+		MonthlyLimitUSD:          req.MonthlyLimitUSD,
+		ImagePrice1K:             req.ImagePrice1K,
+		ImagePrice2K:             req.ImagePrice2K,
+		ImagePrice4K:             req.ImagePrice4K,
+		ClaudeCodeOnly:           req.ClaudeCodeOnly,
+		FallbackGroupID:          req.FallbackGroupID,
+		ModelRouting:             req.ModelRouting,
+		ModelRoutingEnabled:      req.ModelRoutingEnabled,
+		CopyAccountsFromGroupIDs: req.CopyAccountsFromGroupIDs,
 	})
 	if err != nil {
 		response.ErrorFrom(c, err)

backend/internal/repository/group_repo.go

@@ -425,3 +425,61 @@ func (r *groupRepository) loadAccountCounts(ctx context.Context, groupIDs []int6
 
 	return counts, nil
 }
+
+// GetAccountIDsByGroupIDs 获取多个分组的所有账号 ID（去重）
+func (r *groupRepository) GetAccountIDsByGroupIDs(ctx context.Context, groupIDs []int64) ([]int64, error) {
+	if len(groupIDs) == 0 {
+		return nil, nil
+	}
+
+	rows, err := r.sql.QueryContext(
+		ctx,
+		"SELECT DISTINCT account_id FROM account_groups WHERE group_id = ANY($1) ORDER BY account_id",
+		pq.Array(groupIDs),
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var accountIDs []int64
+	for rows.Next() {
+		var accountID int64
+		if err := rows.Scan(&accountID); err != nil {
+			return nil, err
+		}
+		accountIDs = append(accountIDs, accountID)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return accountIDs, nil
+}
+
+// BindAccountsToGroup 将多个账号绑定到指定分组（批量插入，忽略已存在的绑定）
+func (r *groupRepository) BindAccountsToGroup(ctx context.Context, groupID int64, accountIDs []int64) error {
+	if len(accountIDs) == 0 {
+		return nil
+	}
+
+	// 使用 INSERT ... ON CONFLICT DO NOTHING 忽略已存在的绑定
+	_, err := r.sql.ExecContext(
+		ctx,
+		`INSERT INTO account_groups (account_id, group_id, priority, created_at)
+		 SELECT unnest($1::bigint[]), $2, 50, NOW()
+		 ON CONFLICT (account_id, group_id) DO NOTHING`,
+		pq.Array(accountIDs),
+		groupID,
+	)
+	if err != nil {
+		return err
+	}
+
+	// 发送调度器事件
+	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &groupID, nil); err != nil {
+		log.Printf("[SchedulerOutbox] enqueue bind accounts to group failed: group=%d err=%v", groupID, err)
+	}
+
+	return nil
+}

backend/internal/service/admin_service.go

@@ -110,6 +110,8 @@ type CreateGroupInput struct {
 	// 模型路由配置（仅 anthropic 平台使用）
 	ModelRouting        map[string][]int64
 	ModelRoutingEnabled bool // 是否启用模型路由
+	// 从指定分组复制账号（创建分组后在同一事务内绑定）
+	CopyAccountsFromGroupIDs []int64
 }
 
 type UpdateGroupInput struct {
@@ -132,6 +134,8 @@ type UpdateGroupInput struct {
 	// 模型路由配置（仅 anthropic 平台使用）
 	ModelRouting        map[string][]int64
 	ModelRoutingEnabled *bool // 是否启用模型路由
+	// 从指定分组复制账号（同步操作：先清空当前分组的账号绑定，再绑定源分组的账号）
+	CopyAccountsFromGroupIDs []int64
 }
 
 type CreateAccountInput struct {
@@ -572,6 +576,38 @@ func (s *adminServiceImpl) CreateGroup(ctx context.Context, input *CreateGroupIn
 		}
 	}
 
+	// 如果指定了复制账号的源分组，先获取账号 ID 列表
+	var accountIDsToCopy []int64
+	if len(input.CopyAccountsFromGroupIDs) > 0 {
+		// 去重源分组 IDs
+		seen := make(map[int64]struct{})
+		uniqueSourceGroupIDs := make([]int64, 0, len(input.CopyAccountsFromGroupIDs))
+		for _, srcGroupID := range input.CopyAccountsFromGroupIDs {
+			if _, exists := seen[srcGroupID]; !exists {
+				seen[srcGroupID] = struct{}{}
+				uniqueSourceGroupIDs = append(uniqueSourceGroupIDs, srcGroupID)
+			}
+		}
+
+		// 校验源分组的平台是否与新分组一致
+		for _, srcGroupID := range uniqueSourceGroupIDs {
+			srcGroup, err := s.groupRepo.GetByIDLite(ctx, srcGroupID)
+			if err != nil {
+				return nil, fmt.Errorf("source group %d not found: %w", srcGroupID, err)
+			}
+			if srcGroup.Platform != platform {
+				return nil, fmt.Errorf("source group %d platform mismatch: expected %s, got %s", srcGroupID, platform, srcGroup.Platform)
+			}
+		}
+
+		// 获取所有源分组的账号（去重）
+		var err error
+		accountIDsToCopy, err = s.groupRepo.GetAccountIDsByGroupIDs(ctx, uniqueSourceGroupIDs)
+		if err != nil {
+			return nil, fmt.Errorf("failed to get accounts from source groups: %w", err)
+		}
+	}
+
 	group := &Group{
 		Name:             input.Name,
 		Description:      input.Description,
@@ -593,6 +629,15 @@ func (s *adminServiceImpl) CreateGroup(ctx context.Context, input *CreateGroupIn
 	if err := s.groupRepo.Create(ctx, group); err != nil {
 		return nil, err
 	}
+
+	// 如果有需要复制的账号，绑定到新分组
+	if len(accountIDsToCopy) > 0 {
+		if err := s.groupRepo.BindAccountsToGroup(ctx, group.ID, accountIDsToCopy); err != nil {
+			return nil, fmt.Errorf("failed to bind accounts to new group: %w", err)
+		}
+		group.AccountCount = int64(len(accountIDsToCopy))
+	}
+
 	return group, nil
 }
 
@@ -728,6 +773,54 @@ func (s *adminServiceImpl) UpdateGroup(ctx context.Context, id int64, input *Upd
 	if err := s.groupRepo.Update(ctx, group); err != nil {
 		return nil, err
 	}
+
+	// 如果指定了复制账号的源分组，同步绑定（替换当前分组的账号）
+	if len(input.CopyAccountsFromGroupIDs) > 0 {
+		// 去重源分组 IDs
+		seen := make(map[int64]struct{})
+		uniqueSourceGroupIDs := make([]int64, 0, len(input.CopyAccountsFromGroupIDs))
+		for _, srcGroupID := range input.CopyAccountsFromGroupIDs {
+			// 校验：源分组不能是自身
+			if srcGroupID == id {
+				return nil, fmt.Errorf("cannot copy accounts from self")
+			}
+			// 去重
+			if _, exists := seen[srcGroupID]; !exists {
+				seen[srcGroupID] = struct{}{}
+				uniqueSourceGroupIDs = append(uniqueSourceGroupIDs, srcGroupID)
+			}
+		}
+
+		// 校验源分组的平台是否与当前分组一致
+		for _, srcGroupID := range uniqueSourceGroupIDs {
+			srcGroup, err := s.groupRepo.GetByIDLite(ctx, srcGroupID)
+			if err != nil {
+				return nil, fmt.Errorf("source group %d not found: %w", srcGroupID, err)
+			}
+			if srcGroup.Platform != group.Platform {
+				return nil, fmt.Errorf("source group %d platform mismatch: expected %s, got %s", srcGroupID, group.Platform, srcGroup.Platform)
+			}
+		}
+
+		// 获取所有源分组的账号（去重）
+		accountIDsToCopy, err := s.groupRepo.GetAccountIDsByGroupIDs(ctx, uniqueSourceGroupIDs)
+		if err != nil {
+			return nil, fmt.Errorf("failed to get accounts from source groups: %w", err)
+		}
+
+		// 先清空当前分组的所有账号绑定
+		if _, err := s.groupRepo.DeleteAccountGroupsByGroupID(ctx, id); err != nil {
+			return nil, fmt.Errorf("failed to clear existing account bindings: %w", err)
+		}
+
+		// 再绑定源分组的账号
+		if len(accountIDsToCopy) > 0 {
+			if err := s.groupRepo.BindAccountsToGroup(ctx, id, accountIDsToCopy); err != nil {
+				return nil, fmt.Errorf("failed to bind accounts to group: %w", err)
+			}
+		}
+	}
+
 	if s.authCacheInvalidator != nil {
 		s.authCacheInvalidator.InvalidateAuthCacheByGroupID(ctx, id)
 	}

backend/internal/service/group_service.go

@@ -29,6 +29,10 @@ type GroupRepository interface {
 	ExistsByName(ctx context.Context, name string) (bool, error)
 	GetAccountCount(ctx context.Context, groupID int64) (int64, error)
 	DeleteAccountGroupsByGroupID(ctx context.Context, groupID int64) (int64, error)
+	// GetAccountIDsByGroupIDs 获取多个分组的所有账号 ID（去重）
+	GetAccountIDsByGroupIDs(ctx context.Context, groupIDs []int64) ([]int64, error)
+	// BindAccountsToGroup 将多个账号绑定到指定分组
+	BindAccountsToGroup(ctx context.Context, groupID int64, accountIDs []int64) error
 }
 
 // CreateGroupRequest 创建分组请求

frontend/src/i18n/locales/en.ts

@@ -1004,6 +1004,14 @@ export default {
         fallbackHint: 'Non-Claude Code requests will use this group. Leave empty to reject directly.',
         noFallback: 'No Fallback (Reject)'
       },
+      copyAccounts: {
+        title: 'Copy Accounts from Groups',
+        tooltip: 'Select one or more groups of the same platform. After creation, all accounts from these groups will be automatically bound to the new group (deduplicated).',
+        tooltipEdit: 'Select one or more groups of the same platform. After saving, current group accounts will be replaced with accounts from these groups (deduplicated).',
+        selectPlaceholder: 'Select groups to copy accounts from...',
+        hint: 'Multiple groups can be selected, accounts will be deduplicated',
+        hintEdit: '⚠️ Warning: This will replace all existing account bindings'
+      },
       modelRouting: {
         title: 'Model Routing',
         tooltip: 'Configure specific model requests to be routed to designated accounts. Supports wildcard matching, e.g., claude-opus-* matches all opus models.',

frontend/src/i18n/locales/zh.ts

@@ -1079,6 +1079,14 @@ export default {
         fallbackHint: '非 Claude Code 请求将使用此分组，留空则直接拒绝',
         noFallback: '不降级（直接拒绝）'
       },
+      copyAccounts: {
+        title: '从分组复制账号',
+        tooltip: '选择一个或多个相同平台的分组，创建后会自动将这些分组的所有账号绑定到新分组（去重）。',
+        tooltipEdit: '选择一个或多个相同平台的分组，保存后当前分组的账号会被替换为这些分组的账号（去重）。',
+        selectPlaceholder: '选择分组以复制其账号...',
+        hint: '可选多个分组，账号会自动去重',
+        hintEdit: '⚠️ 注意：这会替换当前分组的所有账号绑定'
+      },
       modelRouting: {
         title: '模型路由配置',
         tooltip: '配置特定模型请求优先路由到指定账号。支持通配符匹配，如 claude-opus-* 匹配所有 opus 模型。',

frontend/src/types/index.ts

@@ -411,6 +411,8 @@ export interface CreateGroupRequest {
   image_price_4k?: number | null
   claude_code_only?: boolean
   fallback_group_id?: number | null
+  // 从指定分组复制账号
+  copy_accounts_from_group_ids?: number[]
 }
 
 export interface UpdateGroupRequest {
@@ -429,6 +431,7 @@ export interface UpdateGroupRequest {
   image_price_4k?: number | null
   claude_code_only?: boolean
   fallback_group_id?: number | null
+  copy_accounts_from_group_ids?: number[]
 }
 
 // ==================== Account & Proxy Types ====================

frontend/src/views/admin/GroupsView.vue

@@ -240,9 +240,73 @@
             v-model="createForm.platform"
             :options="platformOptions"
             data-tour="group-form-platform"
+            @change="createForm.copy_accounts_from_group_ids = []"
           />
           <p class="input-hint">{{ t('admin.groups.platformHint') }}</p>
         </div>
+        <!-- 从分组复制账号 -->
+        <div v-if="copyAccountsGroupOptions.length > 0">
+          <div class="mb-1.5 flex items-center gap-1">
+            <label class="text-sm font-medium text-gray-700 dark:text-gray-300">
+              {{ t('admin.groups.copyAccounts.title') }}
+            </label>
+            <div class="group relative inline-flex">
+              <Icon
+                name="questionCircle"
+                size="sm"
+                :stroke-width="2"
+                class="cursor-help text-gray-400 transition-colors hover:text-primary-500 dark:text-gray-500 dark:hover:text-primary-400"
+              />
+              <div class="pointer-events-none absolute bottom-full left-0 z-50 mb-2 w-72 opacity-0 transition-all duration-200 group-hover:pointer-events-auto group-hover:opacity-100">
+                <div class="rounded-lg bg-gray-900 p-3 text-white shadow-lg dark:bg-gray-800">
+                  <p class="text-xs leading-relaxed text-gray-300">
+                    {{ t('admin.groups.copyAccounts.tooltip') }}
+                  </p>
+                  <div class="absolute -bottom-1.5 left-3 h-3 w-3 rotate-45 bg-gray-900 dark:bg-gray-800"></div>
+                </div>
+              </div>
+            </div>
+          </div>
+          <!-- 已选分组标签 -->
+          <div v-if="createForm.copy_accounts_from_group_ids.length > 0" class="flex flex-wrap gap-1.5 mb-2">
+            <span
+              v-for="groupId in createForm.copy_accounts_from_group_ids"
+              :key="groupId"
+              class="inline-flex items-center gap-1 rounded-full bg-primary-100 px-2.5 py-1 text-xs font-medium text-primary-700 dark:bg-primary-900/30 dark:text-primary-300"
+            >
+              {{ copyAccountsGroupOptions.find(o => o.value === groupId)?.label || `#${groupId}` }}
+              <button
+                type="button"
+                @click="createForm.copy_accounts_from_group_ids = createForm.copy_accounts_from_group_ids.filter(id => id !== groupId)"
+                class="ml-0.5 text-primary-500 hover:text-primary-700 dark:hover:text-primary-200"
+              >
+                <Icon name="x" size="xs" />
+              </button>
+            </span>
+          </div>
+          <!-- 分组选择下拉 -->
+          <select
+            class="input"
+            @change="(e) => {
+              const val = Number((e.target as HTMLSelectElement).value)
+              if (val && !createForm.copy_accounts_from_group_ids.includes(val)) {
+                createForm.copy_accounts_from_group_ids.push(val)
+              }
+              (e.target as HTMLSelectElement).value = ''
+            }"
+          >
+            <option value="">{{ t('admin.groups.copyAccounts.selectPlaceholder') }}</option>
+            <option
+              v-for="opt in copyAccountsGroupOptions"
+              :key="opt.value"
+              :value="opt.value"
+              :disabled="createForm.copy_accounts_from_group_ids.includes(opt.value)"
+            >
+              {{ opt.label }}
+            </option>
+          </select>
+          <p class="input-hint">{{ t('admin.groups.copyAccounts.hint') }}</p>
+        </div>
         <div>
           <label class="input-label">{{ t('admin.groups.form.rateMultiplier') }}</label>
           <input
@@ -680,6 +744,69 @@
           />
           <p class="input-hint">{{ t('admin.groups.platformNotEditable') }}</p>
         </div>
+        <!-- 从分组复制账号（编辑时） -->
+        <div v-if="copyAccountsGroupOptionsForEdit.length > 0">
+          <div class="mb-1.5 flex items-center gap-1">
+            <label class="text-sm font-medium text-gray-700 dark:text-gray-300">
+              {{ t('admin.groups.copyAccounts.title') }}
+            </label>
+            <div class="group relative inline-flex">
+              <Icon
+                name="questionCircle"
+                size="sm"
+                :stroke-width="2"
+                class="cursor-help text-gray-400 transition-colors hover:text-primary-500 dark:text-gray-500 dark:hover:text-primary-400"
+              />
+              <div class="pointer-events-none absolute bottom-full left-0 z-50 mb-2 w-72 opacity-0 transition-all duration-200 group-hover:pointer-events-auto group-hover:opacity-100">
+                <div class="rounded-lg bg-gray-900 p-3 text-white shadow-lg dark:bg-gray-800">
+                  <p class="text-xs leading-relaxed text-gray-300">
+                    {{ t('admin.groups.copyAccounts.tooltipEdit') }}
+                  </p>
+                  <div class="absolute -bottom-1.5 left-3 h-3 w-3 rotate-45 bg-gray-900 dark:bg-gray-800"></div>
+                </div>
+              </div>
+            </div>
+          </div>
+          <!-- 已选分组标签 -->
+          <div v-if="editForm.copy_accounts_from_group_ids.length > 0" class="flex flex-wrap gap-1.5 mb-2">
+            <span
+              v-for="groupId in editForm.copy_accounts_from_group_ids"
+              :key="groupId"
+              class="inline-flex items-center gap-1 rounded-full bg-primary-100 px-2.5 py-1 text-xs font-medium text-primary-700 dark:bg-primary-900/30 dark:text-primary-300"
+            >
+              {{ copyAccountsGroupOptionsForEdit.find(o => o.value === groupId)?.label || `#${groupId}` }}
+              <button
+                type="button"
+                @click="editForm.copy_accounts_from_group_ids = editForm.copy_accounts_from_group_ids.filter(id => id !== groupId)"
+                class="ml-0.5 text-primary-500 hover:text-primary-700 dark:hover:text-primary-200"
+              >
+                <Icon name="x" size="xs" />
+              </button>
+            </span>
+          </div>
+          <!-- 分组选择下拉 -->
+          <select
+            class="input"
+            @change="(e) => {
+              const val = Number((e.target as HTMLSelectElement).value)
+              if (val && !editForm.copy_accounts_from_group_ids.includes(val)) {
+                editForm.copy_accounts_from_group_ids.push(val)
+              }
+              (e.target as HTMLSelectElement).value = ''
+            }"
+          >
+            <option value="">{{ t('admin.groups.copyAccounts.selectPlaceholder') }}</option>
+            <option
+              v-for="opt in copyAccountsGroupOptionsForEdit"
+              :key="opt.value"
+              :value="opt.value"
+              :disabled="editForm.copy_accounts_from_group_ids.includes(opt.value)"
+            >
+              {{ opt.label }}
+            </option>
+          </select>
+          <p class="input-hint">{{ t('admin.groups.copyAccounts.hintEdit') }}</p>
+        </div>
         <div>
           <label class="input-label">{{ t('admin.groups.form.rateMultiplier') }}</label>
           <input
@@ -1202,6 +1329,29 @@ const fallbackGroupOptionsForEdit = computed(() => {
   return options
 })
 
+// 复制账号的源分组选项（创建时）- 仅包含相同平台且有账号的分组
+const copyAccountsGroupOptions = computed(() => {
+  const eligibleGroups = groups.value.filter(
+    (g) => g.platform === createForm.platform && (g.account_count || 0) > 0
+  )
+  return eligibleGroups.map((g) => ({
+    value: g.id,
+    label: `${g.name} (${g.account_count || 0} 个账号)`
+  }))
+})
+
+// 复制账号的源分组选项（编辑时）- 仅包含相同平台且有账号的分组，排除自身
+const copyAccountsGroupOptionsForEdit = computed(() => {
+  const currentId = editingGroup.value?.id
+  const eligibleGroups = groups.value.filter(
+    (g) => g.platform === editForm.platform && (g.account_count || 0) > 0 && g.id !== currentId
+  )
+  return eligibleGroups.map((g) => ({
+    value: g.id,
+    label: `${g.name} (${g.account_count || 0} 个账号)`
+  }))
+})
+
 const groups = ref<AdminGroup[]>([])
 const loading = ref(false)
 const searchQuery = ref('')
@@ -1244,7 +1394,9 @@ const createForm = reactive({
   claude_code_only: false,
   fallback_group_id: null as number | null,
   // 模型路由开关
-  model_routing_enabled: false
+  model_routing_enabled: false,
+  // 从分组复制账号
+  copy_accounts_from_group_ids: [] as number[]
 })
 
 // 简单账号类型（用于模型路由选择）
@@ -1415,7 +1567,9 @@ const editForm = reactive({
   claude_code_only: false,
   fallback_group_id: null as number | null,
   // 模型路由开关
-  model_routing_enabled: false
+  model_routing_enabled: false,
+  // 从分组复制账号
+  copy_accounts_from_group_ids: [] as number[]
 })
 
 // 根据分组类型返回不同的删除确认消息
@@ -1497,6 +1651,7 @@ const closeCreateModal = () => {
   createForm.image_price_4k = null
   createForm.claude_code_only = false
   createForm.fallback_group_id = null
+  createForm.copy_accounts_from_group_ids = []
   createModelRoutingRules.value = []
 }
 
@@ -1547,6 +1702,7 @@ const handleEdit = async (group: AdminGroup) => {
   editForm.claude_code_only = group.claude_code_only || false
   editForm.fallback_group_id = group.fallback_group_id
   editForm.model_routing_enabled = group.model_routing_enabled || false
+  editForm.copy_accounts_from_group_ids = [] // 复制账号字段每次编辑时重置为空
   // 加载模型路由规则（异步加载账号名称）
   editModelRoutingRules.value = await convertApiFormatToRoutingRules(group.model_routing)
   showEditModal.value = true
@@ -1556,6 +1712,7 @@ const closeEditModal = () => {
   showEditModal.value = false
   editingGroup.value = null
   editModelRoutingRules.value = []
+  editForm.copy_accounts_from_group_ids = []
 }
 
 const handleUpdateGroup = async () => {