diff --git a/backend/internal/database/database.go b/backend/internal/database/database.go
index 96a0f8f..9ad9555 100644
--- a/backend/internal/database/database.go
+++ b/backend/internal/database/database.go
@@ -308,7 +308,7 @@ func initData() {
 			Username: "dev",
 			Email:    &devEmail,
 			Password: string(hashedPassword),
-			Role:     "developer",
+			Role:     "admin",
 			Status:   "active",
 		}
 		DB.Create(&devUser)
@@ -324,7 +324,7 @@ func initData() {
 			Username: "agent",
 			Email:    &agentEmail,
 			Password: string(hashedPassword),
-			Role:     "developer",
+			Role:     "agent",
 			Status:   "active",
 		}
 		DB.Create(&agentUser)
@@ -678,7 +678,7 @@ func initTicketData() {
 				Username: "dev",
 				Email:    &devEmail,
 				Password: string(hashedPassword),
-				Role:     "developer",
+				Role:     "admin",
 				Status:   "active",
 			}
 			DB.Create(&devUser)
diff --git a/backend/internal/middleware/middleware.go b/backend/internal/middleware/middleware.go
index d99c49c..fb5c062 100644
--- a/backend/internal/middleware/middleware.go
+++ b/backend/internal/middleware/middleware.go
@@ -114,7 +114,7 @@ func AdminAuth() gin.HandlerFunc {
 	}
 }
 
-// DeveloperAuth 开发者权限中间件
+// DeveloperAuth 开发者权限中间件（管理员即开发者）
 func DeveloperAuth() gin.HandlerFunc {
 	return func(c *gin.Context) {
 		role, exists := c.Get("role")
@@ -124,8 +124,8 @@ func DeveloperAuth() gin.HandlerFunc {
 			return
 		}
 
-		if role != "developer" && role != "admin" {
-			response.Error(c, http.StatusForbidden, "Developer access required")
+		if role != "admin" {
+			response.Error(c, http.StatusForbidden, "Admin access required")
 			c.Abort()
 			return
 		}
diff --git a/backend/internal/model/models.go b/backend/internal/model/models.go
index fdcde6c..867c815 100644
--- a/backend/internal/model/models.go
+++ b/backend/internal/model/models.go
@@ -6,7 +6,7 @@ import (
 	"gorm.io/gorm"
 )
 
-// User 平台用户模型（开发者、管理员）
+// User 平台用户模型（管理员、代理商）
 type User struct {
 	ID                  uint       `gorm:"primaryKey" json:"id"`
 	Username            string     `gorm:"uniqueIndex;size:50" json:"username"`
diff --git a/backend/internal/router/developer/agent_apps.go b/backend/internal/router/developer/agent_apps.go
index 7ef8bbd..88180b3 100644
--- a/backend/internal/router/developer/agent_apps.go
+++ b/backend/internal/router/developer/agent_apps.go
@@ -362,8 +362,8 @@ func handleInviteAgent(c *gin.Context) {
 		response.Error(c, 404, "开发者不存在")
 		return
 	}
-	if agent.Role != "developer" {
-		response.Error(c, 400, "该用户不是开发者")
+	if agent.Role != "agent" {
+		response.Error(c, 400, "该用户不是代理商")
 		return
 	}
 
@@ -421,8 +421,8 @@ func handleRequestAuthorization(c *gin.Context) {
 		response.Error(c, 404, "开发者不存在")
 		return
 	}
-	if developer.Role != "developer" {
-		response.Error(c, 400, "该用户不是开发者")
+	if developer.Role != "admin" {
+		response.Error(c, 400, "该用户不是管理员")
 		return
 	}
 
diff --git a/backend/internal/router/developer/agents.go b/backend/internal/router/developer/agents.go
index 7db43a6..c8c78fd 100644
--- a/backend/internal/router/developer/agents.go
+++ b/backend/internal/router/developer/agents.go
@@ -47,7 +47,7 @@ type AgentTreeNode struct {
 
 func handleGetAgents(c *gin.Context) {
 	var users []model.User
-	if err := database.DB.Where("role = ?", "admin").
+	if err := database.DB.Where("role = ?", "agent").
 		Preload("ParentAgent").
 		Order("created_at DESC").
 		Find(&users).Error; err != nil {
@@ -123,7 +123,7 @@ func handleGetAgents(c *gin.Context) {
 
 func handleGetAgentsTree(c *gin.Context) {
 	var users []model.User
-	if err := database.DB.Where("role = ?", "admin").
+	if err := database.DB.Where("role = ?", "agent").
 		Preload("ParentAgent").
 		Order("created_at DESC").
 		Find(&users).Error; err != nil {
@@ -239,7 +239,7 @@ func handleCreateAgent(c *gin.Context) {
 
 	if req.ParentAgentID != nil {
 		var parentAgent model.User
-		if err := database.DB.Where("id = ? AND role = ?", *req.ParentAgentID, "admin").First(&parentAgent).Error; err != nil {
+		if err := database.DB.Where("id = ? AND role = ?", *req.ParentAgentID, "agent").First(&parentAgent).Error; err != nil {
 			response.Error(c, 404, "上级代理不存在")
 			return
 		}
@@ -283,7 +283,7 @@ func handleGetAgentDetail(c *gin.Context) {
 	agentID := c.Param("id")
 
 	var user model.User
-	if err := database.DB.Where("id = ? AND role = ?", agentID, "admin").
+	if err := database.DB.Where("id = ? AND role = ?", agentID, "agent").
 		Preload("ParentAgent").
 		First(&user).Error; err != nil {
 		response.Error(c, 404, "代理不存在")
@@ -378,7 +378,7 @@ func handleUpdateAgent(c *gin.Context) {
 	agentID := c.Param("id")
 
 	var user model.User
-	if err := database.DB.Where("id = ? AND role = ?", agentID, "admin").First(&user).Error; err != nil {
+	if err := database.DB.Where("id = ? AND role = ?", agentID, "agent").First(&user).Error; err != nil {
 		response.Error(c, 404, "代理不存在")
 		return
 	}
@@ -402,7 +402,7 @@ func handleUpdateAgent(c *gin.Context) {
 			return
 		}
 		var parentAgent model.User
-		if err := database.DB.Where("id = ? AND role = ?", *req.ParentAgentID, "admin").First(&parentAgent).Error; err != nil {
+		if err := database.DB.Where("id = ? AND role = ?", *req.ParentAgentID, "agent").First(&parentAgent).Error; err != nil {
 			response.Error(c, 404, "上级代理不存在")
 			return
 		}
@@ -446,7 +446,7 @@ func handleUpdateAgentStatus(c *gin.Context) {
 	agentID := c.Param("id")
 
 	var user model.User
-	if err := database.DB.Where("id = ? AND role = ?", agentID, "admin").First(&user).Error; err != nil {
+	if err := database.DB.Where("id = ? AND role = ?", agentID, "agent").First(&user).Error; err != nil {
 		response.Error(c, 404, "代理不存在")
 		return
 	}
@@ -477,7 +477,7 @@ func handleDeleteAgent(c *gin.Context) {
 	agentID := c.Param("id")
 
 	var user model.User
-	if err := database.DB.Where("id = ? AND role = ?", agentID, "developer").First(&user).Error; err != nil {
+	if err := database.DB.Where("id = ? AND role = ?", agentID, "agent").First(&user).Error; err != nil {
 		response.Error(c, 404, "代理不存在")
 		return
 	}
@@ -500,7 +500,7 @@ func handleGetAgentCards(c *gin.Context) {
 	agentID := c.Param("id")
 
 	var user model.User
-	if err := database.DB.Where("id = ? AND role = ?", agentID, "developer").First(&user).Error; err != nil {
+	if err := database.DB.Where("id = ? AND role = ?", agentID, "agent").First(&user).Error; err != nil {
 		response.Error(c, 404, "代理不存在")
 		return
 	}
@@ -557,7 +557,7 @@ func handleUpdateAgentCards(c *gin.Context) {
 	agentID := c.Param("id")
 
 	var user model.User
-	if err := database.DB.Where("id = ? AND role = ?", agentID, "developer").First(&user).Error; err != nil {
+	if err := database.DB.Where("id = ? AND role = ?", agentID, "agent").First(&user).Error; err != nil {
 		response.Error(c, 404, "代理不存在")
 		return
 	}
diff --git a/backend/internal/router/developer/cloud.go b/backend/internal/router/developer/cloud.go
index 775429f..2bc94d8 100644
--- a/backend/internal/router/developer/cloud.go
+++ b/backend/internal/router/developer/cloud.go
@@ -419,8 +419,8 @@ func handleCreateCloudVariable(c *gin.Context) {
 		req.Scope = "app"
 	}
 
-	if req.WritePermission != "developer" && req.WritePermission != "user" && req.WritePermission != "app_user" {
-		req.WritePermission = "developer"
+	if req.WritePermission != "admin" && req.WritePermission != "user" && req.WritePermission != "app_user" {
+		req.WritePermission = "admin"
 	}
 
 	if req.Status != "active" && req.Status != "inactive" {
@@ -489,7 +489,7 @@ func handleUpdateCloudVariable(c *gin.Context) {
 		variable.DataType = req.DataType
 	}
 	variable.MaxRecords = req.MaxRecords
-	if req.WritePermission == "developer" || req.WritePermission == "user" || req.WritePermission == "app_user" {
+	if req.WritePermission == "admin" || req.WritePermission == "user" || req.WritePermission == "app_user" {
 		variable.WritePermission = req.WritePermission
 	}
 	variable.Description = req.Description
@@ -571,8 +571,8 @@ func handleUploadCloudVariable(c *gin.Context) {
 		scope = "app"
 	}
 
-	if writePermission != "developer" && writePermission != "user" {
-		writePermission = "developer"
+	if writePermission != "admin" && writePermission != "user" {
+		writePermission = "admin"
 	}
 
 	var user model.User
diff --git a/backend/internal/router/frontend/frontend.go b/backend/internal/router/frontend/frontend.go
index ed10ed1..33ac13e 100644
--- a/backend/internal/router/frontend/frontend.go
+++ b/backend/internal/router/frontend/frontend.go
@@ -130,7 +130,7 @@ func handleRegister(c *gin.Context) {
 		req.Username, req.Email, req.Phone, req.Role, req.Type)
 
 	if req.Role == "" {
-		req.Role = "developer"
+		req.Role = "admin"
 	}
 
 	username := req.Username
@@ -794,7 +794,7 @@ func handleGetPublicStats(c *gin.Context) {
 	var totalApps, totalUsers, totalVerifications int64
 
 	database.DB.Model(&model.Application{}).Count(&totalApps)
-	database.DB.Model(&model.User{}).Where("role = ?", "developer").Count(&totalUsers)
+	database.DB.Model(&model.User{}).Where("role = ?", "admin").Count(&totalUsers)
 	database.DB.Model(&model.Card{}).Where("status = ?", "used").Count(&totalVerifications)
 
 	response.Success(c, gin.H{
diff --git a/backend/internal/service/auth.go b/backend/internal/service/auth.go
index b238133..6ccc4da 100644
--- a/backend/internal/service/auth.go
+++ b/backend/internal/service/auth.go
@@ -70,7 +70,7 @@ func (s *AuthService) Login(username, password, agentPath string) (map[string]in
 
 // Register 用户注册
 func (s *AuthService) Register(username, email, password string) error {
-	return s.RegisterWithRole(username, email, "", password, "developer")
+	return s.RegisterWithRole(username, email, "", password, "admin")
 }
 
 // RegisterWithRole 用户注册（带角色）
@@ -115,7 +115,7 @@ func (s *AuthService) RegisterWithRole(username, email, phone, password, role st
 	}
 
 	if role == "" {
-		role = "developer"
+		role = "admin"
 	}
 
 	user := model.User{
diff --git a/database/schema.sql b/database/schema.sql
index 24f668b..e5ae468 100644
--- a/database/schema.sql
+++ b/database/schema.sql
@@ -14,7 +14,7 @@ CREATE TABLE IF NOT EXISTS users (
     signature VARCHAR(255) DEFAULT NULL COMMENT '个性签名',
     points INT DEFAULT 0 COMMENT '积分',
     level INT DEFAULT 1 COMMENT '等级',
-    role ENUM('user', 'developer', 'agent', 'admin') DEFAULT 'user' COMMENT '角色',
+    role ENUM('user', 'agent', 'admin') DEFAULT 'user' COMMENT '角色',
     status ENUM('active', 'inactive', 'banned') DEFAULT 'active' COMMENT '状态',
     agent_id BIGINT UNSIGNED DEFAULT NULL COMMENT '所属代理ID',
     created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
diff --git a/frontend/src/components/developer-sidebar/index.vue b/frontend/src/components/developer-sidebar/index.vue
index 902f0ba..8af11ca 100644
--- a/frontend/src/components/developer-sidebar/index.vue
+++ b/frontend/src/components/developer-sidebar/index.vue
@@ -7,10 +7,10 @@ import TeamSwitcher from '@/components/app-sidebar/team-switcher.vue'
 import NavFooter from '@/components/developer-sidebar/nav-footer.vue'
 
 const user = reactive({
-  name: '开发者',
-  email: 'developer@example.com',
-  avatar: '/avatars/developer.jpg',
-  role: 'developer',
+  name: '管理员',
+  email: 'admin@example.com',
+  avatar: '/avatars/admin.jpg',
+  role: 'admin',
 })
 
 onMounted(() => {
diff --git a/frontend/src/components/marketing-layout/the-header.vue b/frontend/src/components/marketing-layout/the-header.vue
index 43f3df0..ea2d91d 100644
--- a/frontend/src/components/marketing-layout/the-header.vue
+++ b/frontend/src/components/marketing-layout/the-header.vue
@@ -228,7 +228,7 @@ watch(route, () => {
             {{ t('nav.pricing') }}
           </router-link>
 
-          <template v-if="isLoggedIn && currentUser?.role === 'developer'">
+          <template v-if="isLoggedIn && currentUser?.role === 'admin'">
             <div class="w-px h-4 bg-border mx-1" />
 
             <UiDropdownMenu>
@@ -300,79 +300,6 @@ watch(route, () => {
               </UiDropdownMenuContent>
             </UiDropdownMenu>
           </template>
-
-          <template v-if="isLoggedIn && currentUser?.role === 'admin'">
-            <div class="w-px h-4 bg-border mx-1" />
-
-            <UiDropdownMenu>
-              <UiDropdownMenuTrigger as-child>
-                <button
-                  class="transition-colors hover:text-foreground/80 px-3 py-2 rounded-lg flex items-center gap-1"
-                  :class="isMenuActive(adminMenus.main.items) ? 'text-foreground bg-accent' : 'text-foreground/60'"
-                >
-                  {{ adminMenus.main.title }}
-                  <Icon icon="lucide:chevron-down" class="h-4 w-4" />
-                </button>
-              </UiDropdownMenuTrigger>
-              <UiDropdownMenuContent align="start" class="w-40">
-                <UiDropdownMenuItem
-                  v-for="item in adminMenus.main.items"
-                  :key="item.url"
-                  :class="route.path === item.url ? 'bg-accent' : ''"
-                  @click="router.push(item.url)"
-                >
-                  <Icon :icon="item.icon" class="mr-2 h-4 w-4" />
-                  {{ item.title }}
-                </UiDropdownMenuItem>
-              </UiDropdownMenuContent>
-            </UiDropdownMenu>
-
-            <UiDropdownMenu>
-              <UiDropdownMenuTrigger as-child>
-                <button
-                  class="transition-colors hover:text-foreground/80 px-3 py-2 rounded-lg flex items-center gap-1"
-                  :class="isMenuActive(adminMenus.content.items) ? 'text-foreground bg-accent' : 'text-foreground/60'"
-                >
-                  {{ adminMenus.content.title }}
-                  <Icon icon="lucide:chevron-down" class="h-4 w-4" />
-                </button>
-              </UiDropdownMenuTrigger>
-              <UiDropdownMenuContent align="start" class="w-40">
-                <UiDropdownMenuItem
-                  v-for="item in adminMenus.content.items"
-                  :key="item.url"
-                  :class="route.path === item.url ? 'bg-accent' : ''"
-                  @click="router.push(item.url)"
-                >
-                  <Icon :icon="item.icon" class="mr-2 h-4 w-4" />
-                  {{ item.title }}
-                </UiDropdownMenuItem>
-              </UiDropdownMenuContent>
-            </UiDropdownMenu>
-
-            <UiDropdownMenu>
-              <UiDropdownMenuTrigger as-child>
-                <button
-                  class="transition-colors hover:text-foreground/80 px-3 py-2 rounded-lg flex items-center gap-1"
-                  :class="isMenuActive(adminMenus.system.items) ? 'text-foreground bg-accent' : 'text-foreground/60'"
-                >
-                  {{ adminMenus.system.title }}
-                  <Icon icon="lucide:chevron-down" class="h-4 w-4" />
-                </button>
-              </UiDropdownMenuTrigger>
-              <UiDropdownMenuContent align="start" class="w-40">
-                <UiDropdownMenuItem
-                  v-for="item in adminMenus.system.items"
-                  :key="item.url"
-                  :class="route.path === item.url ? 'bg-accent' : ''"
-                  @click="router.push(item.url)"
-                >
-                  <Icon :icon="item.icon" class="mr-2 h-4 w-4" />
-                  {{ item.title }}
-                </UiDropdownMenuItem>
-              </UiDropdownMenuContent>
-            </UiDropdownMenu>
-          </template>
         </nav>
       </div>
 
@@ -438,18 +365,14 @@ watch(route, () => {
                 <Icon icon="lucide:user" class="mr-2 h-4 w-4" />
                 <span>{{ t('nav.profile') }}</span>
               </UiDropdownMenuItem>
-              <UiDropdownMenuItem v-if="currentUser?.role === 'developer'" @click="router.push('/developer')">
+              <UiDropdownMenuItem v-if="currentUser?.role === 'admin'" @click="router.push('/developer')">
                 <Icon icon="lucide:layout-dashboard" class="mr-2 h-4 w-4" />
                 <span>{{ t('nav.developerDashboard') }}</span>
               </UiDropdownMenuItem>
-              <UiDropdownMenuItem v-if="currentUser?.role === 'agent'" @click="router.push('/agent/dashboard')">
+              <UiDropdownMenuItem v-if="currentUser?.role === 'agent'" @click="router.push('/agent')">
                 <Icon icon="lucide:layout-dashboard" class="mr-2 h-4 w-4" />
                 <span>{{ t('nav.agentDashboard') }}</span>
               </UiDropdownMenuItem>
-              <UiDropdownMenuItem v-if="currentUser?.role === 'admin'" @click="router.push('/admin')">
-                <Icon icon="lucide:shield" class="mr-2 h-4 w-4" />
-                <span>{{ t('nav.adminDashboard') }}</span>
-              </UiDropdownMenuItem>
               <UiDropdownMenuSeparator />
               <UiDropdownMenuItem @click="handleLogout">
                 <Icon icon="lucide:log-out" class="mr-2 h-4 w-4" />
@@ -502,7 +425,7 @@ watch(route, () => {
               </button>
             </div>
 
-            <template v-if="isLoggedIn && currentUser?.role === 'developer'">
+            <template v-if="isLoggedIn && currentUser?.role === 'admin'">
               <div class="space-y-1">
                 <p class="text-xs font-medium text-muted-foreground px-3 mb-2">
                   {{ developerMenus.main.title }}
@@ -551,56 +474,6 @@ watch(route, () => {
                 </button>
               </div>
             </template>
-
-            <template v-if="isLoggedIn && currentUser?.role === 'admin'">
-              <div class="space-y-1">
-                <p class="text-xs font-medium text-muted-foreground px-3 mb-2">
-                  {{ adminMenus.main.title }}
-                </p>
-                <button
-                  v-for="item in adminMenus.main.items"
-                  :key="item.url"
-                  class="w-full flex items-center gap-3 px-3 py-2 text-sm rounded-lg transition-colors"
-                  :class="isActive(item.url) ? 'bg-accent text-foreground' : 'text-muted-foreground hover:bg-accent hover:text-foreground'"
-                  @click="navigateTo(item.url)"
-                >
-                  <Icon :icon="item.icon" class="size-4" />
-                  {{ item.title }}
-                </button>
-              </div>
-
-              <div class="space-y-1">
-                <p class="text-xs font-medium text-muted-foreground px-3 mb-2">
-                  {{ adminMenus.content.title }}
-                </p>
-                <button
-                  v-for="item in adminMenus.content.items"
-                  :key="item.url"
-                  class="w-full flex items-center gap-3 px-3 py-2 text-sm rounded-lg transition-colors"
-                  :class="isActive(item.url) ? 'bg-accent text-foreground' : 'text-muted-foreground hover:bg-accent hover:text-foreground'"
-                  @click="navigateTo(item.url)"
-                >
-                  <Icon :icon="item.icon" class="size-4" />
-                  {{ item.title }}
-                </button>
-              </div>
-
-              <div class="space-y-1">
-                <p class="text-xs font-medium text-muted-foreground px-3 mb-2">
-                  {{ adminMenus.system.title }}
-                </p>
-                <button
-                  v-for="item in adminMenus.system.items"
-                  :key="item.url"
-                  class="w-full flex items-center gap-3 px-3 py-2 text-sm rounded-lg transition-colors"
-                  :class="isActive(item.url) ? 'bg-accent text-foreground' : 'text-muted-foreground hover:bg-accent hover:text-foreground'"
-                  @click="navigateTo(item.url)"
-                >
-                  <Icon :icon="item.icon" class="size-4" />
-                  {{ item.title }}
-                </button>
-              </div>
-            </template>
           </nav>
 
           <div v-if="!isLoggedIn" class="pt-4 border-t mt-4 space-y-2">
diff --git a/frontend/src/layouts/agent.vue b/frontend/src/layouts/agent.vue
index 38c6d2e..05736f6 100644
--- a/frontend/src/layouts/agent.vue
+++ b/frontend/src/layouts/agent.vue
@@ -6,7 +6,9 @@ import { useRouter } from 'vue-router'
 
 import NavTeam from '@/components/app-sidebar/nav-team.vue'
 import TeamSwitcher from '@/components/app-sidebar/team-switcher.vue'
+import LanguageChange from '@/components/language-change.vue'
 import ThemePopover from '@/components/custom-theme/theme-popover.vue'
+import ToggleTheme from '@/components/toggle-theme.vue'
 
 const router = useRouter()
 
@@ -218,7 +220,9 @@ function handleLogout() {
             </template>
           </UiBreadcrumbList>
         </UiBreadcrumb>
-        <div class="ml-auto">
+        <div class="ml-auto flex items-center gap-2">
+          <LanguageChange />
+          <ToggleTheme />
           <ThemePopover />
         </div>
       </header>
diff --git a/frontend/src/layouts/developer.vue b/frontend/src/layouts/developer.vue
index 2e4854e..f511e33 100644
--- a/frontend/src/layouts/developer.vue
+++ b/frontend/src/layouts/developer.vue
@@ -3,7 +3,9 @@ import { computed } from 'vue'
 import { useRouter } from 'vue-router'
 
 import DeveloperSidebar from '@/components/developer-sidebar/index.vue'
+import LanguageChange from '@/components/language-change.vue'
 import ThemePopover from '@/components/custom-theme/theme-popover.vue'
+import ToggleTheme from '@/components/toggle-theme.vue'
 
 const router = useRouter()
 
@@ -91,6 +93,8 @@ const breadcrumbs = computed(() => {
         </UiBreadcrumb>
 
         <div class="ml-auto flex items-center gap-2">
+          <LanguageChange />
+          <ToggleTheme />
           <ThemePopover />
         </div>
       </header>
diff --git a/frontend/src/pages/admin/cloud-variables/[id].vue b/frontend/src/pages/admin/cloud-variables/[id].vue
index 3c6f227..65f157a 100644
--- a/frontend/src/pages/admin/cloud-variables/[id].vue
+++ b/frontend/src/pages/admin/cloud-variables/[id].vue
@@ -30,7 +30,7 @@ const form = ref({
   data_type: 'single',
   max_records: 0,
   scope: 'app',
-  write_permission: 'developer',
+  write_permission: 'admin',
   description: '',
   status: 'active',
 })
@@ -61,7 +61,7 @@ async function fetchVariable() {
         data_type: variable.data_type || 'single',
         max_records: variable.max_records || 0,
         scope: variable.scope || 'app',
-        write_permission: variable.write_permission || 'developer',
+        write_permission: variable.write_permission || 'admin',
         description: variable.description || '',
         status: variable.status || 'active',
       }
@@ -297,10 +297,10 @@ onMounted(async () => {
               <UiRadioGroup v-model="form.write_permission" class="grid grid-cols-1 gap-4">
                 <div
                   class="flex items-start gap-3 p-4 rounded-lg border cursor-pointer transition-colors"
-                  :class="form.write_permission === 'developer' ? 'border-primary bg-primary/5' : 'hover:bg-accent'"
-                  @click="form.write_permission = 'developer'"
+                  :class="form.write_permission === 'admin' ? 'border-primary bg-primary/5' : 'hover:bg-accent'"
+                  @click="form.write_permission = 'admin'"
                 >
-                  <UiRadioGroupItem value="developer" class="mt-0.5" />
+                  <UiRadioGroupItem value="admin" class="mt-0.5" />
                   <div>
                     <div class="flex items-center gap-2">
                       <Icon icon="lucide:lock" class="size-4 text-primary" />
@@ -398,7 +398,7 @@ onMounted(async () => {
                 <div class="flex justify-between text-sm">
                   <span class="text-muted-foreground">{{ t('developer.cloudVariables.create.writePermission') }}</span>
                   <UiBadge variant="secondary">
-                    {{ form.write_permission === 'developer' ? t('developer.cloudVariables.create.developerOnly') : form.write_permission === 'app_user' ? '应用用户可写' : t('developer.cloudVariables.create.userWritable') }}
+                    {{ form.write_permission === 'admin' ? t('developer.cloudVariables.create.developerOnly') : form.write_permission === 'app_user' ? '应用用户可写' : t('developer.cloudVariables.create.userWritable') }}
                   </UiBadge>
                 </div>
                 <div class="flex justify-between text-sm items-center">
diff --git a/frontend/src/pages/admin/cloud-variables/create.vue b/frontend/src/pages/admin/cloud-variables/create.vue
index 6c630a6..25bab1e 100644
--- a/frontend/src/pages/admin/cloud-variables/create.vue
+++ b/frontend/src/pages/admin/cloud-variables/create.vue
@@ -30,7 +30,7 @@ const form = ref({
   data_type: 'single',
   max_records: 0,
   scope: 'app',
-  write_permission: 'developer',
+  write_permission: 'admin',
   description: '',
   status: 'active',
 })
@@ -391,10 +391,10 @@ onMounted(() => {
               <UiRadioGroup v-model="form.write_permission" class="grid grid-cols-1 gap-4">
                 <div
                   class="flex items-start gap-3 p-4 rounded-lg border cursor-pointer transition-colors"
-                  :class="form.write_permission === 'developer' ? 'border-primary bg-primary/5' : 'hover:bg-accent'"
-                  @click="form.write_permission = 'developer'"
+                  :class="form.write_permission === 'admin' ? 'border-primary bg-primary/5' : 'hover:bg-accent'"
+                  @click="form.write_permission = 'admin'"
                 >
-                  <UiRadioGroupItem value="developer" class="mt-0.5" />
+                  <UiRadioGroupItem value="admin" class="mt-0.5" />
                   <div>
                     <div class="flex items-center gap-2">
                       <Icon icon="lucide:lock" class="size-4 text-primary" />
@@ -492,7 +492,7 @@ onMounted(() => {
                 <div class="flex justify-between text-sm">
                   <span class="text-muted-foreground">{{ t('developer.cloudVariables.create.writePermission') }}</span>
                   <UiBadge variant="secondary">
-                    {{ form.write_permission === 'developer' ? t('developer.cloudVariables.create.developerOnly') : form.write_permission === 'app_user' ? '应用用户可写' : t('developer.cloudVariables.create.userWritable') }}
+                    {{ form.write_permission === 'admin' ? t('developer.cloudVariables.create.developerOnly') : form.write_permission === 'app_user' ? '应用用户可写' : t('developer.cloudVariables.create.userWritable') }}
                   </UiBadge>
                 </div>
                 <div class="flex justify-between text-sm items-center">
diff --git a/frontend/src/pages/auth/login.vue b/frontend/src/pages/auth/login.vue
index 834564a..bb8d679 100644
--- a/frontend/src/pages/auth/login.vue
+++ b/frontend/src/pages/auth/login.vue
@@ -38,9 +38,7 @@ async function handleLogin() {
 
       toast.success('登录成功')
 
-      const isAgent = data.user.role === 'agent' || data.user.parent_agent_id
-
-      if (isAgent) {
+      if (data.user.role === 'agent' || data.user.parent_agent_id) {
         router.push('/agent')
       }
       else {
diff --git a/frontend/src/pages/developer/cloud-variables/[id].vue b/frontend/src/pages/developer/cloud-variables/[id].vue
index 6baa976..ee14322 100644
--- a/frontend/src/pages/developer/cloud-variables/[id].vue
+++ b/frontend/src/pages/developer/cloud-variables/[id].vue
@@ -28,7 +28,7 @@ const form = ref({
   default_value: '',
   var_type: 'string',
   scope: 'app',
-  write_permission: 'developer',
+  write_permission: 'admin',
   description: '',
   status: 'active',
 })
@@ -57,7 +57,7 @@ async function fetchVariable() {
         default_value: variable.default_value || '',
         var_type: variable.var_type || 'string',
         scope: variable.scope || 'app',
-        write_permission: variable.write_permission || 'developer',
+        write_permission: variable.write_permission || 'admin',
         description: variable.description || '',
         status: variable.status || 'active',
       }
@@ -239,10 +239,10 @@ onMounted(async () => {
               <UiRadioGroup v-model="form.write_permission" class="grid grid-cols-1 md:grid-cols-2 gap-4">
                 <div
                   class="flex items-start gap-3 p-4 rounded-lg border cursor-pointer transition-colors"
-                  :class="form.write_permission === 'developer' ? 'border-primary bg-primary/5' : 'hover:bg-accent'"
-                  @click="form.write_permission = 'developer'"
+                  :class="form.write_permission === 'admin' ? 'border-primary bg-primary/5' : 'hover:bg-accent'"
+                  @click="form.write_permission = 'admin'"
                 >
-                  <UiRadioGroupItem value="developer" class="mt-0.5" />
+                  <UiRadioGroupItem value="admin" class="mt-0.5" />
                   <div>
                     <div class="flex items-center gap-2">
                       <Icon icon="lucide:lock" class="size-4 text-primary" />
@@ -310,7 +310,7 @@ onMounted(async () => {
                 <div class="flex justify-between text-sm">
                   <span class="text-muted-foreground">{{ t('developer.cloudVariables.create.writePermission') }}</span>
                   <UiBadge variant="secondary">
-                    {{ form.write_permission === 'developer' ? t('developer.cloudVariables.create.developerOnly') : t('developer.cloudVariables.create.userWritable') }}
+                    {{ form.write_permission === 'admin' ? t('developer.cloudVariables.create.developerOnly') : t('developer.cloudVariables.create.userWritable') }}
                   </UiBadge>
                 </div>
                 <div class="flex justify-between text-sm items-center">
diff --git a/frontend/src/pages/developer/cloud-variables/create.vue b/frontend/src/pages/developer/cloud-variables/create.vue
index 216c5b1..de999d9 100644
--- a/frontend/src/pages/developer/cloud-variables/create.vue
+++ b/frontend/src/pages/developer/cloud-variables/create.vue
@@ -30,7 +30,7 @@ const form = ref({
   data_type: 'single',
   max_records: 0,
   scope: 'app',
-  write_permission: 'developer',
+  write_permission: 'admin',
   description: '',
   status: 'active',
 })
@@ -391,10 +391,10 @@ onMounted(() => {
               <UiRadioGroup v-model="form.write_permission" class="grid grid-cols-1 md:grid-cols-2 gap-4">
                 <div
                   class="flex items-start gap-3 p-4 rounded-lg border cursor-pointer transition-colors"
-                  :class="form.write_permission === 'developer' ? 'border-primary bg-primary/5' : 'hover:bg-accent'"
-                  @click="form.write_permission = 'developer'"
+                  :class="form.write_permission === 'admin' ? 'border-primary bg-primary/5' : 'hover:bg-accent'"
+                  @click="form.write_permission = 'admin'"
                 >
-                  <UiRadioGroupItem value="developer" class="mt-0.5" />
+                  <UiRadioGroupItem value="admin" class="mt-0.5" />
                   <div>
                     <div class="flex items-center gap-2">
                       <Icon icon="lucide:lock" class="size-4 text-primary" />
@@ -462,7 +462,7 @@ onMounted(() => {
                 <div class="flex justify-between text-sm">
                   <span class="text-muted-foreground">{{ t('developer.cloudVariables.create.writePermission') }}</span>
                   <UiBadge variant="secondary">
-                    {{ form.write_permission === 'developer' ? t('developer.cloudVariables.create.developerOnly') : t('developer.cloudVariables.create.userWritable') }}
+                    {{ form.write_permission === 'admin' ? t('developer.cloudVariables.create.developerOnly') : t('developer.cloudVariables.create.userWritable') }}
                   </UiBadge>
                 </div>
                 <div class="flex justify-between text-sm items-center">
diff --git a/frontend/src/pages/profile/index.vue b/frontend/src/pages/profile/index.vue
index 69781fd..16fdc2f 100644
--- a/frontend/src/pages/profile/index.vue
+++ b/frontend/src/pages/profile/index.vue
@@ -273,9 +273,8 @@ function formatNumber(num: number) {
 
 function getRoleName(role: string) {
   const roles: Record<string, string> = {
-    developer: '开发者',
-    agent: '代理商',
     admin: '管理员',
+    agent: '代理商',
   }
   return roles[role] || role
 }
diff --git a/frontend/src/router/guard/index.ts b/frontend/src/router/guard/index.ts
index 210f1ba..85e38cb 100644
--- a/frontend/src/router/guard/index.ts
+++ b/frontend/src/router/guard/index.ts
@@ -19,10 +19,14 @@ export function createRouterGuard(router: Router) {
     const isAuthPage = to.path === '/login' || to.path === '/register'
 
     if (requiresAuth && !token) {
-      return '/login'
+      return { path: '/login', query: { redirect: to.fullPath } }
     }
 
     if (isAuthPage && token && user) {
+      const redirect = (to.query.redirect as string) || ''
+      if (redirect) {
+        return redirect
+      }
       if (user.role === 'agent' || user.parent_agent_id) {
         return '/agent'
       }
diff --git a/frontend/src/router/routes.ts b/frontend/src/router/routes.ts
index 52ed277..db65ce8 100644
--- a/frontend/src/router/routes.ts
+++ b/frontend/src/router/routes.ts
@@ -26,7 +26,7 @@ const routes: RouteRecordRaw[] = [
   {
     path: '/developer',
     component: () => import('@/layouts/developer.vue'),
-    meta: { auth: true, role: 'developer' },
+    meta: { auth: true, role: 'admin' },
     children: [
       {
         path: '',