diff --git a/backend/my_work/routers/apiSysAdmin.go b/backend/my_work/routers/apiSysAdmin.go
index 9c3676f..6266c79 100644
--- a/backend/my_work/routers/apiSysAdmin.go
+++ b/backend/my_work/routers/apiSysAdmin.go
@@ -1,7 +1,10 @@
 package routers
 
 import (
+	"ops/models"
+
 	"github.com/gin-gonic/gin"
+	"github.com/mitchellh/mapstructure"
 )
 
 // InitSysAdminRouter 初始化系统管理员路由
@@ -25,8 +28,265 @@ func ApiSysAdmin(r *gin.RouterGroup) {
 		ReturnJson(ctx, "apiOK", redata)
 	})
 
-	// TODO: 其他系统管理员接口可在此添加
-	// 例如：用户管理、用户组管理、登录日志查询等
+	// 获取用户列表（仅系统管理员可访问）
+	r.POST("/users", func(ctx *gin.Context) {
+		isAuth, user, data := AuthenticationAuthority(ctx)
+		if !isAuth {
+			ReturnJson(ctx, "userNoLogin", nil)
+			return
+		}
+
+		// 检查是否为系统管理员
+		if !SysAdminCheck(user.ID) {
+			ReturnJson(ctx, "permission_denied", nil)
+			return
+		}
+
+		// 解析分页和搜索参数
+		var params struct {
+			Page     int    `json:"page"`
+			PageSize int    `json:"page_size"`
+			Search   string `json:"search"`
+		}
+		if err := mapstructure.Decode(data, &params); err != nil {
+			params.Page = 1
+			params.PageSize = 20
+		}
+		if params.Page < 1 {
+			params.Page = 1
+		}
+		if params.PageSize < 1 || params.PageSize > 100 {
+			params.PageSize = 20
+		}
+
+		offset := (params.Page - 1) * params.PageSize
+
+		// 构建查询
+		var users []TabUser
+		var total int64
+		query := models.DB.Model(&TabUser{})
+
+		// 搜索条件
+		if params.Search != "" {
+			search := "%" + params.Search + "%"
+			query = query.Where("name LIKE ? OR email LIKE ?", search, search)
+		}
+
+		// 获取总数
+		query.Count(&total)
+
+		// 获取分页数据
+		query.Order("id DESC").Offset(offset).Limit(params.PageSize).Find(&users)
+
+		// 获取用户详细信息（包括头像）
+		var userList []map[string]interface{}
+		for _, u := range users {
+			userInfo := GetUserInfoFromUserID(u.ID)
+			userData := map[string]interface{}{
+				"id":         u.ID,
+				"name":       u.Name,
+				"email":      u.Email,
+				"type":       u.Type,
+				"date":       u.Date,
+				"username":   "",
+				"avatarPath": "",
+			}
+			if userInfo != nil {
+				userData["username"] = userInfo.Username
+				userData["avatarPath"] = userInfo.AvatarPath
+			}
+			userList = append(userList, userData)
+		}
+
+		var redata map[string]interface{} = make(map[string]interface{})
+		redata["users"] = userList
+		redata["total"] = total
+		redata["page"] = params.Page
+		redata["page_size"] = params.PageSize
+
+		ReturnJson(ctx, "apiOK", redata)
+	})
+
+	// 获取所有用户组列表（仅系统管理员可访问）
+	r.POST("/groups", func(ctx *gin.Context) {
+		isAuth, _, _ := AuthenticationAuthority(ctx)
+		if !isAuth {
+			ReturnJson(ctx, "userNoLogin", nil)
+			return
+		}
+
+		var groups []TabUserGroups
+		models.DB.Order("id ASC").Find(&groups)
+
+		var list []map[string]interface{}
+		for _, g := range groups {
+			// 统计成员数量
+			var memberCount int64
+			models.DB.Model(&TabUserGroupBinds{}).Where("group_id = ?", g.ID).Count(&memberCount)
+
+			// 获取部分成员（最多5个）
+			var binds []TabUserGroupBinds
+			models.DB.Where("group_id = ?", g.ID).Limit(5).Find(&binds)
+			var memberIDs []uint
+			for _, b := range binds {
+				memberIDs = append(memberIDs, b.UserID)
+			}
+
+			list = append(list, map[string]interface{}{
+				"id":          g.ID,
+				"name":        g.Name,
+				"email":       g.Email,
+				"type":        g.Type,
+				"date":        g.Date,
+				"memberCount": memberCount,
+				"memberIDs":   memberIDs,
+			})
+		}
+
+		var redata map[string]interface{} = make(map[string]interface{})
+		redata["groups"] = list
+		ReturnJson(ctx, "apiOK", redata)
+	})
+
+	// 获取用户组成员列表（仅系统管理员可访问）
+	r.POST("/group_members", func(ctx *gin.Context) {
+		isAuth, _, data := AuthenticationAuthority(ctx)
+		if !isAuth {
+			ReturnJson(ctx, "userNoLogin", nil)
+			return
+		}
+
+		var params struct {
+			GroupID uint `json:"group_id"`
+			Page     int  `json:"page"`
+			PageSize int  `json:"page_size"`
+		}
+		if err := mapstructure.Decode(data, &params); err != nil {
+			params.Page = 1
+			params.PageSize = 20
+		}
+		if params.Page < 1 {
+			params.Page = 1
+		}
+		if params.PageSize < 1 || params.PageSize > 100 {
+			params.PageSize = 20
+		}
+
+		// 验证用户组是否存在
+		var group TabUserGroups
+		if models.DB.First(&group, params.GroupID).Error != nil {
+			ReturnJson(ctx, "groupNotFound", nil)
+			return
+		}
+
+		offset := (params.Page - 1) * params.PageSize
+
+		var binds []TabUserGroupBinds
+		var total int64
+		models.DB.Model(&TabUserGroupBinds{}).Where("group_id = ?", params.GroupID).Count(&total)
+		models.DB.Where("group_id = ?", params.GroupID).Order("id ASC").Offset(offset).Limit(params.PageSize).Find(&binds)
+
+		// 获取成员用户信息
+		var members []map[string]interface{}
+		for _, b := range binds {
+			var u TabUser
+			if models.DB.First(&u, b.UserID).Error == nil {
+				userInfo := GetUserInfoFromUserID(u.ID)
+				member := map[string]interface{}{
+					"id":         u.ID,
+					"name":       u.Name,
+					"email":      u.Email,
+					"type":       u.Type,
+					"avatarPath": "",
+					"username":   "",
+				}
+				if userInfo != nil {
+					member["username"] = userInfo.Username
+					member["avatarPath"] = userInfo.AvatarPath
+				}
+				members = append(members, member)
+			}
+		}
+
+		var redata map[string]interface{} = make(map[string]interface{})
+	redata["group_id"] = params.GroupID
+	redata["group_name"] = group.Name
+	redata["members"] = members
+	redata["total"] = total
+	redata["page"] = params.Page
+	redata["page_size"] = params.PageSize
+	ReturnJson(ctx, "apiOK", redata)
+})
+
+	// 获取登录失败日志（仅系统管理员可访问）
+	r.POST("/login_fail_logs", func(ctx *gin.Context) {
+		isAuth, _, data := AuthenticationAuthority(ctx)
+		if !isAuth {
+			ReturnJson(ctx, "userNoLogin", nil)
+			return
+		}
+
+		// 解析分页和搜索参数
+		var params struct {
+			Page     int    `json:"page"`
+			PageSize int    `json:"page_size"`
+			Search   string `json:"search"`
+		}
+		if err := mapstructure.Decode(data, &params); err != nil {
+			params.Page = 1
+			params.PageSize = 20
+		}
+		if params.Page < 1 {
+			params.Page = 1
+		}
+		if params.PageSize < 1 || params.PageSize > 100 {
+			params.PageSize = 20
+		}
+
+		offset := (params.Page - 1) * params.PageSize
+
+		// 构建查询
+		var logs []TabUserLoginFailLog
+		var total int64
+		query := models.DB.Model(&TabUserLoginFailLog{})
+
+		// 搜索条件（用户名或IP）
+		if params.Search != "" {
+			search := "%" + params.Search + "%"
+			query = query.Where("username LIKE ? OR ip LIKE ?", search, search)
+		}
+
+		// 获取总数
+		query.Count(&total)
+
+		// 获取分页数据，按时间倒序
+		query.Order("updated_at DESC").Offset(offset).Limit(params.PageSize).Find(&logs)
+
+		// 构建返回数据
+		var logList []map[string]interface{}
+		for _, log := range logs {
+			logData := map[string]interface{}{
+				"id":         log.ID,
+				"username":   log.Username,
+				"user_id":    log.UserID,
+				"ip":         log.IP,
+				"user_agent": log.UserAgent,
+				"reason":     log.Reason,
+				"count":      log.Count,
+				"created_at": log.CreatedAt,
+				"updated_at": log.UpdatedAt,
+			}
+			logList = append(logList, logData)
+		}
+
+		var redata map[string]interface{} = make(map[string]interface{})
+		redata["logs"] = logList
+		redata["total"] = total
+		redata["page"] = params.Page
+		redata["page_size"] = params.PageSize
+
+		ReturnJson(ctx, "apiOK", redata)
+	})
 }
 
 // SysAdminCheck 检查当前用户是否为系统管理员
diff --git a/frontend/ops_vue_js/src/api/auth.js b/frontend/ops_vue_js/src/api/auth.js
index 131d6d9..47752b9 100644
--- a/frontend/ops_vue_js/src/api/auth.js
+++ b/frontend/ops_vue_js/src/api/auth.js
@@ -21,6 +21,26 @@ export const authApi = {
     return api.post('/admin/sysadmins', {})
   },
 
+  /** 获取用户列表（仅管理员可访问） */
+  getUsers(params = {}) {
+    return api.post('/admin/users', params)
+  },
+
+  /** 获取用户组列表（仅管理员可访问） */
+  getGroups() {
+    return api.post('/admin/groups', {})
+  },
+
+  /** 获取用户组成员列表（仅管理员可访问） */
+  getGroupMembers(groupId, params = {}) {
+    return api.post('/admin/group_members', { group_id: groupId, ...params })
+  },
+
+  /** 获取登录失败日志（仅管理员可访问） */
+  getLoginFailLogs(params = {}) {
+    return api.post('/admin/login_fail_logs', params)
+  },
+
   /** 修改密码 */
   changePassword(oldPass, newPass) {
     return api.post('/users/changePassword', { oldpass: oldPass, newpass: newPass })
diff --git a/frontend/ops_vue_js/src/components/AppHeader.vue b/frontend/ops_vue_js/src/components/AppHeader.vue
index 6fb7f73..df38777 100644
--- a/frontend/ops_vue_js/src/components/AppHeader.vue
+++ b/frontend/ops_vue_js/src/components/AppHeader.vue
@@ -153,7 +153,7 @@ const navItems = computed(() => [
               </RouterLink>
               <RouterLink
                 v-if="userStore.isSysAdmin"
-                to="/admin"
+                to="/sysadmin"
                 class="flex items-center gap-2 px-4 py-2 text-sm text-amber-600 hover:bg-amber-50 dark:text-amber-400 dark:hover:bg-amber-900/20"
                 @click="userDropdownOpen = false"
               >
@@ -228,7 +228,7 @@ const navItems = computed(() => [
             </RouterLink>
             <RouterLink
               v-if="userStore.isSysAdmin"
-              to="/admin"
+              to="/sysadmin"
               class="flex items-center gap-2 px-4 py-2 text-sm text-amber-600 hover:bg-amber-50 dark:text-amber-400 dark:hover:bg-amber-900/20"
               @click="userDropdownOpen = false"
             >
diff --git a/frontend/ops_vue_js/src/i18n/en.json b/frontend/ops_vue_js/src/i18n/en.json
index db57124..60a3b9b 100644
--- a/frontend/ops_vue_js/src/i18n/en.json
+++ b/frontend/ops_vue_js/src/i18n/en.json
@@ -203,7 +203,6 @@
     "back_to_list": "Back to List",
     "root": "Warehouse",
     "item_detail": "Item Detail",
-    "edit_item": "Edit Item",
     "move_item": "Move Item",
     "move_history": "Move History",
     "work_orders": "Work Orders",
@@ -364,7 +363,6 @@
     "old_pass_incorrect": "Old password is incorrect",
     "confirm_password_incorrect": "Confirm password is incorrect",
     "confirm": "Confirm",
-    "cancel": "Cancel",
     "save_success": "Saved successfully",
     "submit": "Submit",
     "submitting": "Submitting...",
diff --git a/frontend/ops_vue_js/src/i18n/zh-CN.json b/frontend/ops_vue_js/src/i18n/zh-CN.json
index 476a3c9..fba8882 100644
--- a/frontend/ops_vue_js/src/i18n/zh-CN.json
+++ b/frontend/ops_vue_js/src/i18n/zh-CN.json
@@ -203,7 +203,6 @@
     "back_to_list": "返回列表",
     "root": "仓库",
     "item_detail": "物品详情",
-    "edit_item": "编辑物品",
     "move_item": "移动物品",
     "move_history": "移动历史",
     "work_orders": "关联工单",
@@ -363,7 +362,6 @@
     "old_pass_incorrect": "旧密码不正确",
     "confirm_password_incorrect": "确认密码不正确",
     "confirm": "确认",
-    "cancel": "取消",
     "delete_ok": "删除成功",
     "save_success": "保存成功",
     "submit": "提交",
diff --git a/frontend/ops_vue_js/src/router/index.js b/frontend/ops_vue_js/src/router/index.js
index 734fec5..cab747b 100644
--- a/frontend/ops_vue_js/src/router/index.js
+++ b/frontend/ops_vue_js/src/router/index.js
@@ -109,7 +109,7 @@ const router = createRouter({
           component: () => import('@/views/AdminView.vue'),
         },
         {
-          path: 'admin',
+          path: 'sysadmin',
           name: 'sysadmin',
           component: () => import('@/views/SysAdminView.vue'),
           meta: { requireSysAdmin: true },
diff --git a/frontend/ops_vue_js/src/stores/users.js b/frontend/ops_vue_js/src/stores/users.js
index 988d1a9..8e22d20 100644
--- a/frontend/ops_vue_js/src/stores/users.js
+++ b/frontend/ops_vue_js/src/stores/users.js
@@ -64,7 +64,7 @@ export const useUsersStore = defineStore('users', () => {
     }
 
     return {
-        usersInfo, getUsernameFromUserID, getAvatarUrlFromUserID,
+        usersInfo, getUsernameFromUserID, getAvatarUrlFromUserID, fetchUser,
     }
 
 })
diff --git a/frontend/ops_vue_js/src/views/SysAdminView.vue b/frontend/ops_vue_js/src/views/SysAdminView.vue
index 883c9f1..1a0c0d6 100644
--- a/frontend/ops_vue_js/src/views/SysAdminView.vue
+++ b/frontend/ops_vue_js/src/views/SysAdminView.vue
@@ -1,18 +1,47 @@
 <script setup>
-import { ref, onMounted } from 'vue'
+import { ref, onMounted, watch, computed } from 'vue'
 import { useUserStore } from '@/stores/user'
+import { useUsersStore } from '@/stores/users'
 import { authApi } from '@/api/auth'
+import { IconSearch, IconRefresh, IconChevronLeft, IconChevronRight } from '@tabler/icons-vue'
+
+const usersStore = useUsersStore()
 
 const userStore = useUserStore()
 const activeTab = ref('users')
 const sysAdmins = ref([])
 const loading = ref(false)
 
+// 用户列表相关
+const users = ref([])
+const usersLoading = ref(false)
+const userSearch = ref('')
+const userPage = ref(1)
+const userPageSize = ref(20)
+const userTotal = ref(0)
+
+// 用户组相关
+const groups = ref([])
+const groupsLoading = ref(false)
+const selectedGroup = ref(null)
+const groupMembers = ref([])
+const groupMembersLoading = ref(false)
+const groupMemberPage = ref(1)
+const groupMemberPageSize = ref(20)
+const groupMemberTotal = ref(0)
+
+// 登录失败日志相关
+const loginFailLogs = ref([])
+const loginFailLogsLoading = ref(false)
+const loginFailLogSearch = ref('')
+const loginFailLogPage = ref(1)
+const loginFailLogPageSize = ref(20)
+const loginFailLogTotal = ref(0)
+
 const tabs = [
   { id: 'users', label: '用户管理' },
   { id: 'groups', label: '用户组' },
   { id: 'logs', label: '登录日志' },
-  { id: 'config', label: '系统配置' },
 ]
 
 async function fetchSysAdmins() {
@@ -21,6 +50,8 @@ async function fetchSysAdmins() {
     const res = await authApi.sysAdmins()
     if (res.errCode === 0 && Array.isArray(res.data.sysAdmins)) {
       sysAdmins.value = res.data.sysAdmins
+      // 预加载管理员用户信息（头像/用户名）
+      res.data.sysAdmins.forEach(id => usersStore.fetchUser(id))
     }
   } catch {
     // 错误已由拦截器处理
@@ -29,8 +60,167 @@ async function fetchSysAdmins() {
   }
 }
 
+async function fetchUsers() {
+  usersLoading.value = true
+  try {
+    const res = await authApi.getUsers({
+      page: userPage.value,
+      page_size: userPageSize.value,
+      search: userSearch.value,
+    })
+    if (res.errCode === 0) {
+      users.value = res.data.users || []
+      userTotal.value = res.data.total || 0
+      userPage.value = res.data.page || 1
+      userPageSize.value = res.data.page_size || 20
+      // 预加载用户头像/用户名信息
+      users.value.forEach(u => usersStore.fetchUser(u.id))
+    }
+  } catch {
+    // 错误已由拦截器处理
+  } finally {
+    usersLoading.value = false
+  }
+}
+
+function onSearch() {
+  userPage.value = 1
+  fetchUsers()
+}
+
+function onPageChange(page) {
+  userPage.value = page
+  fetchUsers()
+}
+
+const totalPages = computed(() => Math.ceil(userTotal.value / userPageSize.value))
+const groupMemberTotalPages = computed(() => Math.ceil(groupMemberTotal.value / groupMemberPageSize.value))
+const loginFailLogTotalPages = computed(() => Math.ceil(loginFailLogTotal.value / loginFailLogPageSize.value))
+
+async function fetchGroups() {
+  groupsLoading.value = true
+  try {
+    const res = await authApi.getGroups()
+    if (res.errCode === 0) {
+      groups.value = res.data.groups || []
+      // 预加载用户组成员信息
+      groups.value.forEach(g => {
+        g.memberIDs?.forEach(id => usersStore.fetchUser(id))
+      })
+    }
+  } catch {
+    // 错误已由拦截器处理
+  } finally {
+    groupsLoading.value = false
+  }
+}
+
+async function fetchGroupMembers() {
+  if (!selectedGroup.value) return
+  groupMembersLoading.value = true
+  try {
+    const res = await authApi.getGroupMembers(selectedGroup.value.id, {
+      page: groupMemberPage.value,
+      page_size: groupMemberPageSize.value,
+    })
+    if (res.errCode === 0) {
+      groupMembers.value = res.data.members || []
+      groupMemberTotal.value = res.data.total || 0
+      groupMemberPage.value = res.data.page || 1
+      groupMemberPageSize.value = res.data.page_size || 20
+      // 预加载成员头像信息
+      groupMembers.value.forEach(m => usersStore.fetchUser(m.id))
+    }
+  } catch {
+    // 错误已由拦截器处理
+  } finally {
+    groupMembersLoading.value = false
+  }
+}
+
+function selectGroup(group) {
+  selectedGroup.value = group
+  groupMemberPage.value = 1
+  fetchGroupMembers()
+}
+
+function onGroupMemberPageChange(page) {
+  groupMemberPage.value = page
+  fetchGroupMembers()
+}
+
+async function fetchLoginFailLogs() {
+  loginFailLogsLoading.value = true
+  try {
+    const res = await authApi.getLoginFailLogs({
+      page: loginFailLogPage.value,
+      page_size: loginFailLogPageSize.value,
+      search: loginFailLogSearch.value,
+    })
+    if (res.errCode === 0) {
+      loginFailLogs.value = res.data.logs || []
+      loginFailLogTotal.value = res.data.total || 0
+      loginFailLogPage.value = res.data.page || 1
+      loginFailLogPageSize.value = res.data.page_size || 20
+      // 预加载用户头像信息
+      loginFailLogs.value.forEach(log => {
+        if (log.user_id > 0) {
+          usersStore.fetchUser(log.user_id)
+        }
+      })
+    }
+  } catch {
+    // 错误已由拦截器处理
+  } finally {
+    loginFailLogsLoading.value = false
+  }
+}
+
+function onLoginFailLogSearch() {
+  loginFailLogPage.value = 1
+  fetchLoginFailLogs()
+}
+
+function onLoginFailLogPageChange(page) {
+  loginFailLogPage.value = page
+  fetchLoginFailLogs()
+}
+
+function formatReason(reason) {
+  const reasonMap = {
+    'password_error': '密码错误',
+    'user_not_found': '用户不存在',
+  }
+  return reasonMap[reason] || reason
+}
+
+function getReasonClass(reason) {
+  if (reason === 'password_error') {
+    return 'bg-orange-100 text-orange-800 dark:bg-orange-900/30 dark:text-orange-400'
+  }
+  if (reason === 'user_not_found') {
+    return 'bg-gray-100 text-gray-700 dark:bg-gray-700 dark:text-gray-300'
+  }
+  return 'bg-gray-100 text-gray-700 dark:bg-gray-700 dark:text-gray-300'
+}
+
+// 监听 Tab 切换
+watch(activeTab, (tab) => {
+  if (tab === 'users') {
+    fetchUsers()
+  } else if (tab === 'groups') {
+    fetchGroups()
+    if (!selectedGroup.value && groups.value.length > 0) {
+      selectGroup(groups.value[0])
+    }
+  } else if (tab === 'logs') {
+    fetchLoginFailLogs()
+  }
+})
+
 onMounted(() => {
   fetchSysAdmins()
+  fetchUsers()
 })
 </script>
 
@@ -73,35 +263,384 @@ onMounted(() => {
       <div class="rounded-lg border border-gray-200 bg-white p-6 dark:border-dk-muted dark:bg-dk-card">
         <!-- 用户管理 -->
         <div v-if="activeTab === 'users'" class="space-y-4">
-          <h2 class="text-lg font-semibold text-gray-900 dark:text-dk-text">用户管理</h2>
-          <div class="rounded-md bg-gray-50 p-8 text-center dark:bg-dk-base">
-            <p class="text-gray-500 dark:text-dk-subtle">sysadmin_users_placeholder</p>
+          <div class="flex items-center justify-between">
+            <h2 class="text-lg font-semibold text-gray-900 dark:text-dk-text">用户管理</h2>
+            <span class="text-sm text-gray-500 dark:text-dk-subtle">
+              共 {{ userTotal }} 位用户
+            </span>
+          </div>
+
+          <!-- 搜索栏 -->
+          <div class="flex gap-2">
+            <div class="relative flex-1">
+              <IconSearch class="absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-gray-400" />
+              <input
+                v-model="userSearch"
+                type="text"
+                placeholder="搜索用户名或邮箱..."
+                class="w-full rounded-md border border-gray-300 py-2 pl-9 pr-4 text-sm focus:border-blue-500 focus:outline-none dark:border-dk-muted dark:bg-dk-base dark:text-dk-text"
+                @keyup.enter="onSearch"
+              />
+            </div>
+            <button
+              @click="onSearch"
+              class="rounded-md bg-blue-600 px-4 py-2 text-sm font-medium text-white hover:bg-blue-700"
+            >
+              搜索
+            </button>
+            <button
+              @click="fetchUsers"
+              class="rounded-md border border-gray-300 px-3 py-2 text-gray-600 hover:bg-gray-50 dark:border-dk-muted dark:text-dk-subtle dark:hover:bg-dk-card"
+              :disabled="usersLoading"
+            >
+              <IconRefresh :size="18" :class="{ 'animate-spin': usersLoading }" />
+            </button>
+          </div>
+
+          <!-- 用户列表 -->
+          <div class="overflow-hidden rounded-md border border-gray-200 dark:border-dk-muted">
+            <table class="min-w-full divide-y divide-gray-200 dark:divide-dk-muted">
+              <thead class="bg-gray-50 dark:bg-dk-base">
+                <tr>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">ID</th>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">用户名</th>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">邮箱</th>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">类型</th>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">注册时间</th>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">操作</th>
+                </tr>
+              </thead>
+              <tbody class="divide-y divide-gray-200 bg-white dark:divide-dk-muted dark:bg-dk-card">
+                <tr v-if="usersLoading" class="text-center">
+                  <td colspan="6" class="py-8 text-gray-500 dark:text-dk-subtle">加载中...</td>
+                </tr>
+                <tr v-else-if="users.length === 0" class="text-center">
+                  <td colspan="6" class="py-8 text-gray-500 dark:text-dk-subtle">暂无用户</td>
+                </tr>
+                <tr v-for="user in users" :key="user.id" class="hover:bg-gray-50 dark:hover:bg-dk-base">
+                  <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-900 dark:text-dk-text">{{ user.id }}</td>
+                  <td class="whitespace-nowrap px-4 py-3">
+                    <div class="flex items-center gap-2">
+                      <img
+                        :src="usersStore.getAvatarUrlFromUserID(user.id)"
+                        class="h-7 w-7 rounded-full object-cover"
+                        alt="avatar"
+                      />
+                      <span class="text-sm text-gray-900 dark:text-dk-text">
+                        {{ usersStore.getUsernameFromUserID(user.id) || user.name }}
+                      </span>
+                    </div>
+                  </td>
+                  <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-500 dark:text-dk-subtle">{{ user.email }}</td>
+                  <td class="whitespace-nowrap px-4 py-3 text-sm">
+                    <span
+                      :class="[
+                        'rounded-full px-2 py-0.5 text-xs font-medium',
+                        user.type === 'admin' ? 'bg-amber-100 text-amber-800 dark:bg-amber-900/30 dark:text-amber-400' : 'bg-gray-100 text-gray-700 dark:bg-gray-700 dark:text-gray-300'
+                      ]"
+                    >
+                      {{ user.type }}
+                    </span>
+                  </td>
+                  <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-500 dark:text-dk-subtle">{{ new Date(user.date).toLocaleString() }}</td>
+                  <td class="whitespace-nowrap px-4 py-3 text-sm">
+                    <button class="text-blue-600 hover:text-blue-700 dark:text-blue-400">详情</button>
+                  </td>
+                </tr>
+              </tbody>
+            </table>
+          </div>
+
+          <!-- 分页 -->
+          <div class="flex items-center justify-between">
+            <div class="text-sm text-gray-500 dark:text-dk-subtle">
+              第 {{ userPage }} 页，共 {{ totalPages }} 页
+            </div>
+            <div class="flex gap-2">
+              <button
+                @click="onPageChange(userPage - 1)"
+                :disabled="userPage <= 1 || usersLoading"
+                class="flex items-center gap-1 rounded-md border border-gray-300 px-3 py-1.5 text-sm disabled:opacity-50 dark:border-dk-muted dark:text-dk-text"
+              >
+                <IconChevronLeft :size="16" /> 上一页
+              </button>
+              <button
+                @click="onPageChange(userPage + 1)"
+                :disabled="userPage >= totalPages || usersLoading"
+                class="flex items-center gap-1 rounded-md border border-gray-300 px-3 py-1.5 text-sm disabled:opacity-50 dark:border-dk-muted dark:text-dk-text"
+              >
+                下一页 <IconChevronRight :size="16" />
+              </button>
+            </div>
           </div>
         </div>
 
         <!-- 用户组 -->
         <div v-if="activeTab === 'groups'" class="space-y-4">
-          <h2 class="text-lg font-semibold text-gray-900 dark:text-dk-text">用户组管理</h2>
-          <div class="rounded-md bg-gray-50 p-8 text-center dark:bg-dk-base">
-            <p class="text-gray-500 dark:text-dk-subtle">sysadmin_groups_placeholder</p>
+          <div class="flex items-center justify-between">
+            <h2 class="text-lg font-semibold text-gray-900 dark:text-dk-text">用户组管理</h2>
+            <button
+              @click="fetchGroups"
+              class="rounded-md border border-gray-300 px-3 py-1.5 text-gray-600 hover:bg-gray-50 dark:border-dk-muted dark:text-dk-subtle dark:hover:bg-dk-card"
+              :disabled="groupsLoading"
+            >
+              <IconRefresh :size="18" :class="{ 'animate-spin': groupsLoading }" />
+            </button>
+          </div>
+
+          <div class="grid gap-4 lg:grid-cols-3">
+            <!-- 用户组列表 -->
+            <div class="lg:col-span-1">
+              <div class="overflow-hidden rounded-md border border-gray-200 dark:border-dk-muted">
+                <div class="bg-gray-50 px-4 py-2 text-sm font-medium text-gray-700 dark:bg-dk-base dark:text-dk-subtle">
+                  用户组列表
+                </div>
+                <div v-if="groupsLoading" class="p-4 text-center text-gray-500 dark:text-dk-subtle">
+                  加载中...
+                </div>
+                <div v-else-if="groups.length === 0" class="p-4 text-center text-gray-500 dark:text-dk-subtle">
+                  暂无用户组
+                </div>
+                <div v-else class="divide-y divide-gray-200 dark:divide-dk-muted">
+                  <button
+                    v-for="group in groups"
+                    :key="group.id"
+                    @click="selectGroup(group)"
+                    :class="[
+                      'w-full px-4 py-3 text-left transition-colors',
+                      selectedGroup?.id === group.id
+                        ? 'bg-blue-50 dark:bg-blue-900/20'
+                        : 'hover:bg-gray-50 dark:hover:bg-dk-base'
+                    ]"
+                  >
+                    <div class="flex items-center justify-between">
+                      <div>
+                        <div class="font-medium text-gray-900 dark:text-dk-text">{{ group.name }}</div>
+                        <div class="text-xs text-gray-500 dark:text-dk-subtle">
+                          {{ group.memberCount }} 位成员
+                        </div>
+                      </div>
+                      <div class="flex -space-x-1">
+                        <img
+                          v-for="memberId in group.memberIDs?.slice(0, 3)"
+                          :key="memberId"
+                          :src="usersStore.getAvatarUrlFromUserID(memberId)"
+                          class="h-6 w-6 rounded-full border-2 border-white object-cover dark:border-dk-card"
+                          :title="usersStore.getUsernameFromUserID(memberId)"
+                        />
+                      </div>
+                    </div>
+                  </button>
+                </div>
+              </div>
+            </div>
+
+            <!-- 组成员详情 -->
+            <div class="lg:col-span-2">
+              <div v-if="!selectedGroup" class="rounded-md bg-gray-50 p-8 text-center dark:bg-dk-base">
+                <p class="text-gray-500 dark:text-dk-subtle">请选择一个用户组查看成员</p>
+              </div>
+              <div v-else class="space-y-4">
+                <div class="flex items-center justify-between">
+                  <div>
+                    <h3 class="font-semibold text-gray-900 dark:text-dk-text">{{ selectedGroup.name }}</h3>
+                    <p class="text-sm text-gray-500 dark:text-dk-subtle">共 {{ groupMemberTotal }} 位成员</p>
+                  </div>
+                </div>
+
+                <div class="overflow-hidden rounded-md border border-gray-200 dark:border-dk-muted">
+                  <table class="min-w-full divide-y divide-gray-200 dark:divide-dk-muted">
+                    <thead class="bg-gray-50 dark:bg-dk-base">
+                      <tr>
+                        <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">用户</th>
+                        <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">邮箱</th>
+                        <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">类型</th>
+                      </tr>
+                    </thead>
+                    <tbody class="divide-y divide-gray-200 bg-white dark:divide-dk-muted dark:bg-dk-card">
+                      <tr v-if="groupMembersLoading" class="text-center">
+                        <td colspan="3" class="py-8 text-gray-500 dark:text-dk-subtle">加载中...</td>
+                      </tr>
+                      <tr v-else-if="groupMembers.length === 0" class="text-center">
+                        <td colspan="3" class="py-8 text-gray-500 dark:text-dk-subtle">暂无成员</td>
+                      </tr>
+                      <tr v-for="member in groupMembers" :key="member.id" class="hover:bg-gray-50 dark:hover:bg-dk-base">
+                        <td class="whitespace-nowrap px-4 py-3">
+                          <div class="flex items-center gap-2">
+                            <img
+                              :src="usersStore.getAvatarUrlFromUserID(member.id)"
+                              class="h-7 w-7 rounded-full object-cover"
+                              alt="avatar"
+                            />
+                            <span class="text-sm text-gray-900 dark:text-dk-text">
+                              {{ usersStore.getUsernameFromUserID(member.id) || member.name }}
+                            </span>
+                          </div>
+                        </td>
+                        <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-500 dark:text-dk-subtle">{{ member.email }}</td>
+                        <td class="whitespace-nowrap px-4 py-3 text-sm">
+                          <span
+                            :class="[
+                              'rounded-full px-2 py-0.5 text-xs font-medium',
+                              member.type === 'admin' ? 'bg-amber-100 text-amber-800 dark:bg-amber-900/30 dark:text-amber-400' : 'bg-gray-100 text-gray-700 dark:bg-gray-700 dark:text-gray-300'
+                            ]"
+                          >
+                            {{ member.type }}
+                          </span>
+                        </td>
+                      </tr>
+                    </tbody>
+                  </table>
+                </div>
+
+                <!-- 分页 -->
+                <div class="flex items-center justify-between">
+                  <div class="text-sm text-gray-500 dark:text-dk-subtle">
+                    第 {{ groupMemberPage }} 页，共 {{ groupMemberTotalPages }} 页
+                  </div>
+                  <div class="flex gap-2">
+                    <button
+                      @click="onGroupMemberPageChange(groupMemberPage - 1)"
+                      :disabled="groupMemberPage <= 1 || groupMembersLoading"
+                      class="flex items-center gap-1 rounded-md border border-gray-300 px-3 py-1.5 text-sm disabled:opacity-50 dark:border-dk-muted dark:text-dk-text"
+                    >
+                      <IconChevronLeft :size="16" /> 上一页
+                    </button>
+                    <button
+                      @click="onGroupMemberPageChange(groupMemberPage + 1)"
+                      :disabled="groupMemberPage >= groupMemberTotalPages || groupMembersLoading"
+                      class="flex items-center gap-1 rounded-md border border-gray-300 px-3 py-1.5 text-sm disabled:opacity-50 dark:border-dk-muted dark:text-dk-text"
+                    >
+                      下一页 <IconChevronRight :size="16" />
+                    </button>
+                  </div>
+                </div>
+              </div>
+            </div>
           </div>
         </div>
 
         <!-- 登录日志 -->
         <div v-if="activeTab === 'logs'" class="space-y-4">
-          <h2 class="text-lg font-semibold text-gray-900 dark:text-dk-text">登录失败日志</h2>
-          <div class="rounded-md bg-gray-50 p-8 text-center dark:bg-dk-base">
-            <p class="text-gray-500 dark:text-dk-subtle">sysadmin_logs_placeholder</p>
+          <div class="flex items-center justify-between">
+            <h2 class="text-lg font-semibold text-gray-900 dark:text-dk-text">登录失败日志</h2>
+            <span class="text-sm text-gray-500 dark:text-dk-subtle">
+              共 {{ loginFailLogTotal }} 条记录
+            </span>
+          </div>
+
+          <!-- 搜索栏 -->
+          <div class="flex gap-2">
+            <div class="relative flex-1">
+              <IconSearch class="absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-gray-400" />
+              <input
+                v-model="loginFailLogSearch"
+                type="text"
+                placeholder="搜索用户名或IP地址..."
+                class="w-full rounded-md border border-gray-300 py-2 pl-9 pr-4 text-sm focus:border-blue-500 focus:outline-none dark:border-dk-muted dark:bg-dk-base dark:text-dk-text"
+                @keyup.enter="onLoginFailLogSearch"
+              />
+            </div>
+            <button
+              @click="onLoginFailLogSearch"
+              class="rounded-md bg-blue-600 px-4 py-2 text-sm font-medium text-white hover:bg-blue-700"
+            >
+              搜索
+            </button>
+            <button
+              @click="fetchLoginFailLogs"
+              class="rounded-md border border-gray-300 px-3 py-2 text-gray-600 hover:bg-gray-50 dark:border-dk-muted dark:text-dk-subtle dark:hover:bg-dk-card"
+              :disabled="loginFailLogsLoading"
+            >
+              <IconRefresh :size="18" :class="{ 'animate-spin': loginFailLogsLoading }" />
+            </button>
+          </div>
+
+          <!-- 日志列表 -->
+          <div class="overflow-hidden rounded-md border border-gray-200 dark:border-dk-muted">
+            <table class="min-w-full divide-y divide-gray-200 dark:divide-dk-muted">
+              <thead class="bg-gray-50 dark:bg-dk-base">
+                <tr>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">用户名</th>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">失败原因</th>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">连续次数</th>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">IP地址</th>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">最后时间</th>
+                  <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">首次时间</th>
+                </tr>
+              </thead>
+              <tbody class="divide-y divide-gray-200 bg-white dark:divide-dk-muted dark:bg-dk-card">
+                <tr v-if="loginFailLogsLoading" class="text-center">
+                  <td colspan="6" class="py-8 text-gray-500 dark:text-dk-subtle">加载中...</td>
+                </tr>
+                <tr v-else-if="loginFailLogs.length === 0" class="text-center">
+                  <td colspan="6" class="py-8 text-gray-500 dark:text-dk-subtle">暂无登录失败记录</td>
+                </tr>
+                <tr v-for="log in loginFailLogs" :key="log.id" class="hover:bg-gray-50 dark:hover:bg-dk-base">
+                  <td class="whitespace-nowrap px-4 py-3">
+                    <div class="flex items-center gap-2">
+                      <img
+                        v-if="log.user_id > 0"
+                        :src="usersStore.getAvatarUrlFromUserID(log.user_id)"
+                        class="h-7 w-7 rounded-full object-cover"
+                        alt="avatar"
+                      />
+                      <div v-else class="h-7 w-7 rounded-full bg-gray-200 dark:bg-gray-700"></div>
+                      <span class="text-sm text-gray-900 dark:text-dk-text">
+                        {{ log.username }}
+                      </span>
+                    </div>
+                  </td>
+                  <td class="whitespace-nowrap px-4 py-3">
+                    <span
+                      :class="[
+                        'rounded-full px-2 py-0.5 text-xs font-medium',
+                        getReasonClass(log.reason)
+                      ]"
+                    >
+                      {{ formatReason(log.reason) }}
+                    </span>
+                  </td>
+                  <td class="whitespace-nowrap px-4 py-3 text-sm">
+                    <span :class="[
+                      'font-medium',
+                      log.count >= 5 ? 'text-red-600 dark:text-red-400' : 'text-gray-900 dark:text-dk-text'
+                    ]">
+                      {{ log.count }}
+                    </span>
+                  </td>
+                  <td class="whitespace-nowrap px-4 py-3 text-sm font-mono text-gray-500 dark:text-dk-subtle">{{ log.ip }}</td>
+                  <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-500 dark:text-dk-subtle">{{ new Date(log.updated_at).toLocaleString() }}</td>
+                  <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-500 dark:text-dk-subtle">{{ new Date(log.created_at).toLocaleString() }}</td>
+                </tr>
+              </tbody>
+            </table>
+          </div>
+
+          <!-- 分页 -->
+          <div class="flex items-center justify-between">
+            <div class="text-sm text-gray-500 dark:text-dk-subtle">
+              第 {{ loginFailLogPage }} 页，共 {{ loginFailLogTotalPages }} 页
+            </div>
+            <div class="flex gap-2">
+              <button
+                @click="onLoginFailLogPageChange(loginFailLogPage - 1)"
+                :disabled="loginFailLogPage <= 1 || loginFailLogsLoading"
+                class="flex items-center gap-1 rounded-md border border-gray-300 px-3 py-1.5 text-sm disabled:opacity-50 dark:border-dk-muted dark:text-dk-text"
+              >
+                <IconChevronLeft :size="16" /> 上一页
+              </button>
+              <button
+                @click="onLoginFailLogPageChange(loginFailLogPage + 1)"
+                :disabled="loginFailLogPage >= loginFailLogTotalPages || loginFailLogsLoading"
+                class="flex items-center gap-1 rounded-md border border-gray-300 px-3 py-1.5 text-sm disabled:opacity-50 dark:border-dk-muted dark:text-dk-text"
+              >
+                下一页 <IconChevronRight :size="16" />
+              </button>
+            </div>
           </div>
         </div>
 
-        <!-- 系统配置 -->
-        <div v-if="activeTab === 'config'" class="space-y-4">
-          <h2 class="text-lg font-semibold text-gray-900 dark:text-dk-text">系统配置</h2>
-          <div class="rounded-md bg-gray-50 p-8 text-center dark:bg-dk-base">
-            <p class="text-gray-500 dark:text-dk-subtle">sysadmin_config_placeholder</p>
-          </div>
-        </div>
       </div>
 
       <!-- SysAdmins List -->
@@ -117,13 +656,20 @@ onMounted(() => {
           </button>
         </div>
         <div class="flex flex-wrap gap-2">
-          <span
+          <div
             v-for="adminId in sysAdmins"
             :key="adminId"
-            class="rounded-full bg-amber-100 px-2.5 py-0.5 text-xs font-medium text-amber-800 dark:bg-amber-900/30 dark:text-amber-400"
+            class="flex items-center gap-2 rounded-full bg-amber-100 px-3 py-1 dark:bg-amber-900/30"
           >
-            ID: {{ adminId }}
-          </span>
+            <img
+              :src="usersStore.getAvatarUrlFromUserID(adminId)"
+              class="h-6 w-6 rounded-full object-cover"
+              alt="avatar"
+            />
+            <span class="text-xs font-medium text-amber-800 dark:text-amber-400">
+              {{ usersStore.getUsernameFromUserID(adminId) || 'ID: ' + adminId }}
+            </span>
+          </div>
           <span v-if="sysAdmins.length === 0" class="text-sm text-gray-400 dark:text-dk-muted">
             暂无系统管理员
           </span>