diff --git a/admin/src/api/config.ts b/admin/src/api/config.ts
index 54104cc..8c67251 100644
--- a/admin/src/api/config.ts
+++ b/admin/src/api/config.ts
@@ -112,6 +112,7 @@ export interface MemberIconsConfig {
   unlimitedMemberIcon?: string
   sincereMemberIcon?: string
   familyMemberIcon?: string
+  timeLimitedMemberIcon?: string
 }
 
 /**
diff --git a/admin/src/api/memberTier.ts b/admin/src/api/memberTier.ts
index 933da94..ca91e51 100644
--- a/admin/src/api/memberTier.ts
+++ b/admin/src/api/memberTier.ts
@@ -65,3 +65,17 @@ export function updateMemberTier(id: number, data: UpdateMemberTierRequest) {
 export function deleteMemberTier(id: number) {
   return request.delete(`/admin/memberTiers/${id}`)
 }
+
+/**
+ * 获取默认选中会员等级
+ */
+export function getDefaultTierLevel() {
+  return request.get<number | null>('/admin/memberTiers/defaultLevel')
+}
+
+/**
+ * 设置默认选中会员等级
+ */
+export function setDefaultTierLevel(level: number) {
+  return request.put('/admin/memberTiers/defaultLevel', { level })
+}
diff --git a/admin/src/types/user.d.ts b/admin/src/types/user.d.ts
index 529a14a..018e24c 100644
--- a/admin/src/types/user.d.ts
+++ b/admin/src/types/user.d.ts
@@ -68,6 +68,7 @@ export interface UserQueryParams {
   registerEndTime?: string
   gender?: number
   city?: string
+  isTestUser?: boolean
 }
 
 /**
@@ -94,6 +95,7 @@ export interface UserListItem {
   contactCount: number
   createTime: string
   lastLoginTime: string
+  isTestUser: boolean
 }
 
 /**
diff --git a/admin/src/views/content/memberTier.vue b/admin/src/views/content/memberTier.vue
index 5dc08eb..893659d 100644
--- a/admin/src/views/content/memberTier.vue
+++ b/admin/src/views/content/memberTier.vue
@@ -30,6 +30,9 @@
             <el-tag :type="tier.status === 1 ? 'success' : 'info'" size="small">
               {{ tier.status === 1 ? '启用' : '禁用' }}
             </el-tag>
+            <el-tag v-if="defaultLevel === tier.level" type="warning" size="small" style="margin-left: 4px;">
+              默认选中
+            </el-tag>
           </div>
 
           <!-- 等级信息 -->
@@ -70,6 +73,15 @@
 
           <!-- 操作按钮 -->
           <div class="tier-actions">
+            <el-button 
+              v-if="defaultLevel !== tier.level" 
+              type="warning" 
+              size="small" 
+              plain 
+              @click="handleSetDefault(tier)"
+            >
+              设为默认
+            </el-button>
             <el-button type="primary" size="small" @click="handleEdit(tier)">
               <el-icon><Edit /></el-icon>
               编辑
@@ -220,6 +232,8 @@ import {
   createMemberTier,
   updateMemberTier,
   deleteMemberTier,
+  getDefaultTierLevel,
+  setDefaultTierLevel,
   type MemberTier
 } from '@/api/memberTier'
 import { useUserStore } from '@/stores/user'
@@ -235,6 +249,7 @@ const isEdit = ref(false)
 const submitting = ref(false)
 const formRef = ref<FormInstance>()
 const editingId = ref<number | null>(null)
+const defaultLevel = ref<number | null>(null)
 
 const formData = reactive({
   level: 1,
@@ -270,8 +285,12 @@ const getFullUrl = (url: string) => {
 const loadList = async () => {
   loading.value = true
   try {
-    const res: any = await getMemberTierList()
+    const [res, defaultRes]: any[] = await Promise.all([
+      getMemberTierList(),
+      getDefaultTierLevel()
+    ])
     tierList.value = res || []
+    defaultLevel.value = defaultRes ?? null
   } catch (error) {
     console.error('加载列表失败:', error)
   } finally {
@@ -332,6 +351,16 @@ const handleDelete = async (row: MemberTier) => {
   }
 }
 
+const handleSetDefault = async (tier: MemberTier) => {
+  try {
+    await setDefaultTierLevel(tier.level)
+    defaultLevel.value = tier.level
+    ElMessage.success(`已设置「${tier.name}」为默认选中`)
+  } catch (error) {
+    console.error('设置默认失败:', error)
+  }
+}
+
 const handleUploadSuccess = (response: any) => {
   if (response.code === 0 && response.data) {
     formData.benefitsImage = response.data.url
@@ -575,11 +604,10 @@ onMounted(() => {
 
 /* 排序标识 */
 .tier-sort {
-  position: absolute;
-  bottom: 8px;
-  right: 12px;
+  text-align: right;
   font-size: 11px;
   color: #c0c4cc;
+  margin-top: 10px;
 }
 
 /* 弹窗样式 */
diff --git a/admin/src/views/system/config.vue b/admin/src/views/system/config.vue
index 34f8dbf..8a8b6ee 100644
--- a/admin/src/views/system/config.vue
+++ b/admin/src/views/system/config.vue
@@ -147,6 +147,28 @@
               </div>
             </el-form-item>
 
+            <el-form-item label="限时会员图标">
+              <div class="icon-upload">
+                <el-upload
+                  class="icon-uploader"
+                  :action="uploadUrl"
+                  :headers="uploadHeaders"
+                  :show-file-list="false"
+                  :on-success="handleTimeLimitedMemberIconSuccess"
+                  :before-upload="beforeAvatarUpload"
+                  accept="image/*"
+                >
+                  <img v-if="configForm.timeLimitedMemberIcon" :src="getFullUrl(configForm.timeLimitedMemberIcon)" class="icon-preview" />
+                  <el-icon v-else class="icon-uploader-icon"><Plus /></el-icon>
+                </el-upload>
+                <div class="avatar-tip">
+                  <p>建议尺寸：64x64像素</p>
+                  <p>支持格式：PNG（透明背景）</p>
+                  <p>限时会员用户显示的图标</p>
+                </div>
+              </div>
+            </el-form-item>
+
             <!-- 会员入口图设置 -->
             <el-form-item label="会员入口图">
               <div class="banner-upload">
@@ -276,6 +298,7 @@ const configForm = ref({
   unlimitedMemberIcon: '',
   sincereMemberIcon: '',
   familyMemberIcon: '',
+  timeLimitedMemberIcon: '',
   memberEntryImage: '',
   realNamePrice: 88
 })
@@ -324,6 +347,7 @@ const loadConfig = async () => {
       configForm.value.unlimitedMemberIcon = memberIconsRes.unlimitedMemberIcon || ''
       configForm.value.sincereMemberIcon = memberIconsRes.sincereMemberIcon || ''
       configForm.value.familyMemberIcon = memberIconsRes.familyMemberIcon || ''
+      configForm.value.timeLimitedMemberIcon = memberIconsRes.timeLimitedMemberIcon || ''
     }
     if (memberEntryRes) {
       configForm.value.memberEntryImage = memberEntryRes.imageUrl || ''
@@ -409,6 +433,15 @@ const handleFamilyMemberIconSuccess = (response) => {
   }
 }
 
+const handleTimeLimitedMemberIconSuccess = (response) => {
+  if (response.code === 0 && response.data) {
+    configForm.value.timeLimitedMemberIcon = response.data.url
+    ElMessage.success('上传成功')
+  } else {
+    ElMessage.error(response.message || '上传失败')
+  }
+}
+
 const handleMemberEntryImageSuccess = (response) => {
   if (response.code === 0 && response.data) {
     configForm.value.memberEntryImage = response.data.url
@@ -453,9 +486,10 @@ const saveBasicConfig = async () => {
     const memberIcons = {
       unlimitedMemberIcon: configForm.value.unlimitedMemberIcon || undefined,
       sincereMemberIcon: configForm.value.sincereMemberIcon || undefined,
-      familyMemberIcon: configForm.value.familyMemberIcon || undefined
+      familyMemberIcon: configForm.value.familyMemberIcon || undefined,
+      timeLimitedMemberIcon: configForm.value.timeLimitedMemberIcon || undefined
     }
-    if (memberIcons.unlimitedMemberIcon || memberIcons.sincereMemberIcon || memberIcons.familyMemberIcon) {
+    if (memberIcons.unlimitedMemberIcon || memberIcons.sincereMemberIcon || memberIcons.familyMemberIcon || memberIcons.timeLimitedMemberIcon) {
       promises.push(setMemberIcons(memberIcons))
     }
     // 保存实名认证费用
diff --git a/admin/src/views/user/list.vue b/admin/src/views/user/list.vue
index 71a3e4f..dd4c4ba 100644
--- a/admin/src/views/user/list.vue
+++ b/admin/src/views/user/list.vue
@@ -26,7 +26,8 @@ const searchForm = reactive<Partial<UserQueryParams>>({
   isMember: undefined,
   memberLevel: undefined,
   isRealName: undefined,
-  gender: undefined
+  gender: undefined,
+  isTestUser: undefined
 })
 
 // 分页参数
@@ -77,6 +78,13 @@ const genderOptions = [
   { label: '女', value: 2 }
 ]
 
+// 用户类型选项
+const userTypeOptions = [
+  { label: '全部', value: '' },
+  { label: '真实用户', value: false },
+  { label: '测试用户', value: true }
+]
+
 // 获取用户列表
 const fetchUserList = async () => {
   loading.value = true
@@ -320,6 +328,21 @@ onMounted(() => {
           />
         </el-select>
       </el-form-item>
+      <el-form-item label="用户类型">
+        <el-select
+          v-model="searchForm.isTestUser"
+          placeholder="请选择"
+          clearable
+          style="width: 120px"
+        >
+          <el-option
+            v-for="item in userTypeOptions"
+            :key="String(item.value)"
+            :label="item.label"
+            :value="item.value"
+          />
+        </el-select>
+      </el-form-item>
     </SearchForm>
 
     <!-- 数据表格 -->
@@ -351,6 +374,16 @@ onMounted(() => {
           fixed="left"
           align="center"
         />
+        <el-table-column
+          label="用户类型"
+          min-width="80"
+          align="center"
+        >
+          <template #default="{ row }">
+            <el-tag v-if="row.isTestUser" type="info" size="small">测试</el-tag>
+            <el-tag v-else type="success" size="small">真实</el-tag>
+          </template>
+        </el-table-column>
         <el-table-column
           label="用户信息"
           min-width="180"
diff --git a/miniapp/api/member.js b/miniapp/api/member.js
index 8e64a46..98eda9c 100644
--- a/miniapp/api/member.js
+++ b/miniapp/api/member.js
@@ -6,8 +6,7 @@
 import { get, post, del } from './request'
 
 /**
- * 获取会员信息
- * WHEN a user visits member page, THE XiangYi_MiniApp SHALL display three membership tiers
+ * 获取会员信息（未登录时只返回等级配置）
  * Requirements: 10.1
  * 
  * @returns {Promise<Object>} 会员信息
diff --git a/miniapp/pages/index/index.vue b/miniapp/pages/index/index.vue
index 6347508..4ac1037 100644
--- a/miniapp/pages/index/index.vue
+++ b/miniapp/pages/index/index.vue
@@ -214,6 +214,7 @@
 import { ref, computed, onMounted } from 'vue'
 import { useUserStore } from '@/store/user.js'
 import { useConfigStore } from '@/store/config.js'
+import { useChatStore } from '@/store/chat.js'
 import { getRecommend } from '@/api/user.js'
 import { checkUnlock, unlock } from '@/api/interact.js'
 import { getFullImageUrl } from '@/utils/image.js'
@@ -1017,6 +1018,7 @@ export default {
 	onShow() {
 		const configStore = useConfigStore()
 		const userStore = useUserStore()
+		const chatStore = useChatStore()
 		
 		// 从服务器刷新用户信息（带节流，防止频繁请求）
 		if (userStore.isLoggedIn) {
@@ -1027,6 +1029,9 @@ export default {
 			if (now - lastRefresh > REFRESH_INTERVAL) {
 				userStore.refreshFromServer()
 			}
+			
+			// 刷新未读消息数并更新底部导航栏badge
+			chatStore.fetchAllUnreadCounts()
 		}
 		
 		// 检查各类弹窗显示
diff --git a/miniapp/pages/member/index.vue b/miniapp/pages/member/index.vue
index a7a0446..90090f2 100644
--- a/miniapp/pages/member/index.vue
+++ b/miniapp/pages/member/index.vue
@@ -125,65 +125,48 @@ export default {
     }
 
     /**
-     * 会员等级配置
+     * 会员等级配置（从后端加载）
      */
-    const memberTiers = ref([
-      {
-        level: 1,
-        name: '永久会员',
-        price: 1299,
-        originalPrice: 1899,
-        discount: '8折优惠',
-        badge: ''
-      },
-      {
-        level: 2,
-        name: '诚意会员',
-        price: 1999,
-        originalPrice: 2899,
-        discount: '7折优惠',
-        badge: ''
-      },
-      {
-        level: 3,
-        name: '诚意会员',
-        price: 2999,
-        originalPrice: 4299,
-        discount: '7折优惠',
-        badge: '家庭版'
-      }
-    ])
+    const memberTiers = ref([])
 
     // 计算属性
     const selectedTierInfo = computed(() => {
       return memberTiers.value.find(t => t.level === selectedTier.value)
     })
 
-    // 加载会员配置（包括权益长图）
+    // 更新tiers数据
+    const updateTiers = (tiers, configDefaultLevel) => {
+      memberTiers.value = tiers.map(tier => ({
+        level: tier.level,
+        name: tier.name,
+        badge: tier.badge || '',
+        price: tier.price,
+        originalPrice: tier.originalPrice,
+        discount: tier.discount || '',
+        benefitsImage: tier.benefitsImage ? getFullImageUrl(tier.benefitsImage) : ''
+      }))
+      // 优先级：页面参数 > 后端配置的默认等级 > 第一个
+      if (defaultLevel.value && memberTiers.value.some(t => t.level === defaultLevel.value)) {
+        selectedTier.value = defaultLevel.value
+      } else if (configDefaultLevel && memberTiers.value.some(t => t.level === configDefaultLevel)) {
+        selectedTier.value = configDefaultLevel
+      } else if (memberTiers.value.length > 0) {
+        selectedTier.value = memberTiers.value[0].level
+      }
+    }
+
+    // 加载会员配置
     const loadMemberConfig = async () => {
       try {
         const res = await getMemberInfo()
         if (res && (res.success || res.code === 0) && res.data) {
-          // 更新用户会员状态
-          userStore.setMemberStatus(res.data.isMember, res.data.memberLevel)
-          
-          // 如果后台返回了会员等级配置，更新本地配置
+          // 已登录时更新用户会员状态
+          if (userStore.isLoggedIn) {
+            userStore.setMemberStatus(res.data.isMember, res.data.memberLevel)
+          }
+          // 更新会员等级配置
           if (res.data.tiers && res.data.tiers.length > 0) {
-            memberTiers.value = res.data.tiers.map(tier => ({
-              level: tier.level,
-              name: tier.name,
-              badge: tier.badge || '',
-              price: tier.price,
-              originalPrice: tier.originalPrice,
-              discount: tier.discount || '',
-              benefitsImage: tier.benefitsImage ? getFullImageUrl(tier.benefitsImage) : ''
-            }))
-            // 如果有页面参数指定的等级，使用该等级；否则默认选中第一个
-            if (defaultLevel.value && memberTiers.value.some(t => t.level === defaultLevel.value)) {
-              selectedTier.value = defaultLevel.value
-            } else if (memberTiers.value.length > 0) {
-              selectedTier.value = memberTiers.value[0].level
-            }
+            updateTiers(res.data.tiers, res.data.defaultTierLevel)
           }
         }
       } catch (error) {
@@ -235,6 +218,12 @@ export default {
     const handlePurchase = async () => {
       if (!selectedTier.value || purchasing.value) return
 
+      // 未登录跳转登录页
+      if (!userStore.isLoggedIn) {
+        uni.navigateTo({ url: '/pages/login/index' })
+        return
+      }
+
       purchasing.value = true
       console.log('开始购买会员...')
 
diff --git a/miniapp/pages/mine/index.vue b/miniapp/pages/mine/index.vue
index cec0d0b..61c6432 100644
--- a/miniapp/pages/mine/index.vue
+++ b/miniapp/pages/mine/index.vue
@@ -200,6 +200,7 @@
 import { ref, computed, onMounted } from 'vue'
 import { useUserStore } from '@/store/user.js'
 import { useConfigStore } from '@/store/config.js'
+import { useChatStore } from '@/store/chat.js'
 import { getInteractCounts, markInteractAsRead } from '@/api/interact.js'
 import { bindFamilyByXiangQinNo, getFamilyMembers, unbindFamilyMember, getMemberInfo } from '@/api/member.js'
 import { getFullImageUrl } from '@/utils/image.js'
@@ -541,6 +542,7 @@ export default {
   },
   async onShow() {
     const userStore = useUserStore()
+    const chatStore = useChatStore()
     userStore.restoreFromStorage()
     // 重置头像加载错误状态，以便重新尝试加载
     if (this.avatarLoadError !== undefined) {
@@ -552,6 +554,8 @@ export default {
       if (this.loadInteractCounts) {
         this.loadInteractCounts()
       }
+      // 刷新未读消息数并更新底部导航栏badge
+      chatStore.fetchAllUnreadCounts()
     }
   }
 }
diff --git a/miniapp/store/config.js b/miniapp/store/config.js
index bfde407..82617b8 100644
--- a/miniapp/store/config.js
+++ b/miniapp/store/config.js
@@ -46,7 +46,8 @@ export const useConfigStore = defineStore('config', {
     memberIcons: {
       unlimitedMemberIcon: '', // 不限时会员图标
       sincereMemberIcon: '',   // 诚意会员图标
-      familyMemberIcon: ''     // 家庭版会员图标
+      familyMemberIcon: '',    // 家庭版会员图标
+      timeLimitedMemberIcon: '' // 限时会员图标
     },
     
     // 弹窗配置
@@ -99,6 +100,8 @@ export const useConfigStore = defineStore('config', {
           return state.memberIcons.sincereMemberIcon || ''
         case 3:
           return state.memberIcons.familyMemberIcon || ''
+        case 4:
+          return state.memberIcons.timeLimitedMemberIcon || ''
         default:
           return ''
       }
@@ -135,7 +138,8 @@ export const useConfigStore = defineStore('config', {
             this.memberIcons = {
               unlimitedMemberIcon: config.memberIcons.unlimitedMemberIcon || '',
               sincereMemberIcon: config.memberIcons.sincereMemberIcon || '',
-              familyMemberIcon: config.memberIcons.familyMemberIcon || ''
+              familyMemberIcon: config.memberIcons.familyMemberIcon || '',
+              timeLimitedMemberIcon: config.memberIcons.timeLimitedMemberIcon || ''
             }
           }
           
diff --git a/server/src/XiangYi.AdminApi/Controllers/AdminMemberTierController.cs b/server/src/XiangYi.AdminApi/Controllers/AdminMemberTierController.cs
index 10c0243..a7abf82 100644
--- a/server/src/XiangYi.AdminApi/Controllers/AdminMemberTierController.cs
+++ b/server/src/XiangYi.AdminApi/Controllers/AdminMemberTierController.cs
@@ -1,6 +1,8 @@
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using XiangYi.Application.DTOs.Responses;
+using XiangYi.Application.Interfaces;
+using XiangYi.Application.Services;
 using XiangYi.Core.Entities.Biz;
 using XiangYi.Core.Interfaces;
 
@@ -15,13 +17,16 @@ namespace XiangYi.AdminApi.Controllers;
 public class AdminMemberTierController : ControllerBase
 {
     private readonly IRepository<MemberTierConfig> _tierRepository;
+    private readonly ISystemConfigService _systemConfigService;
     private readonly ILogger<AdminMemberTierController> _logger;
 
     public AdminMemberTierController(
         IRepository<MemberTierConfig> tierRepository,
+        ISystemConfigService systemConfigService,
         ILogger<AdminMemberTierController> logger)
     {
         _tierRepository = tierRepository;
+        _systemConfigService = systemConfigService;
         _logger = logger;
     }
 
@@ -189,6 +194,31 @@ public class AdminMemberTierController : ControllerBase
 
         return ApiResponse.Success("删除成功");
     }
+
+    /// <summary>
+    /// 获取默认选中会员等级
+    /// </summary>
+    [HttpGet("defaultLevel")]
+    public async Task<ApiResponse<int?>> GetDefaultLevel()
+    {
+        var value = await _systemConfigService.GetConfigValueAsync(SystemConfigService.DefaultMemberTierLevelKey);
+        int? level = int.TryParse(value, out var l) ? l : null;
+        return ApiResponse<int?>.Success(level);
+    }
+
+    /// <summary>
+    /// 设置默认选中会员等级
+    /// </summary>
+    [HttpPut("defaultLevel")]
+    public async Task<ApiResponse> SetDefaultLevel([FromBody] SetDefaultLevelRequest request)
+    {
+        await _systemConfigService.SetConfigValueAsync(
+            SystemConfigService.DefaultMemberTierLevelKey,
+            request.Level.ToString(),
+            "默认选中会员等级");
+        _logger.LogInformation("设置默认选中会员等级: Level={Level}", request.Level);
+        return ApiResponse.Success("设置成功");
+    }
 }
 
 /// <summary>
@@ -244,3 +274,11 @@ public class UpdateMemberTierRequest
     public int Status { get; set; }
     public int DurationMonths { get; set; } = 0;
 }
+
+/// <summary>
+/// 设置默认选中等级请求
+/// </summary>
+public class SetDefaultLevelRequest
+{
+    public int Level { get; set; }
+}
diff --git a/server/src/XiangYi.AppApi/Controllers/MemberController.cs b/server/src/XiangYi.AppApi/Controllers/MemberController.cs
index 6ca03d0..ddb049b 100644
--- a/server/src/XiangYi.AppApi/Controllers/MemberController.cs
+++ b/server/src/XiangYi.AppApi/Controllers/MemberController.cs
@@ -17,22 +17,32 @@ namespace XiangYi.AppApi.Controllers;
 public class MemberController : ControllerBase
 {
     private readonly IMemberService _memberService;
+    private readonly ISystemConfigService _systemConfigService;
     private readonly ILogger<MemberController> _logger;
 
-    public MemberController(IMemberService memberService, ILogger<MemberController> logger)
+    public MemberController(IMemberService memberService, ISystemConfigService systemConfigService, ILogger<MemberController> logger)
     {
         _memberService = memberService;
+        _systemConfigService = systemConfigService;
         _logger = logger;
     }
 
     /// <summary>
-    /// 获取会员信息
+    /// 获取会员信息（未登录时只返回等级配置）
     /// </summary>
     /// <returns>会员信息</returns>
     [HttpGet("info")]
+    [AllowAnonymous]
     public async Task<ApiResponse<MemberInfoResponse>> GetMemberInfo()
     {
         var userId = GetCurrentUserId();
+        if (userId <= 0)
+        {
+            // 未登录：只返回会员等级配置和默认选中等级
+            var tiers = await _memberService.GetMemberTiersAsync();
+            var defaultTierLevel = await GetDefaultTierLevelAsync();
+            return ApiResponse<MemberInfoResponse>.Success(new MemberInfoResponse { Tiers = tiers, DefaultTierLevel = defaultTierLevel });
+        }
         var result = await _memberService.GetMemberInfoAsync(userId);
         return ApiResponse<MemberInfoResponse>.Success(result);
     }
@@ -45,7 +55,7 @@ public class MemberController : ControllerBase
     [HttpPost("purchase")]
     public async Task<ApiResponse<MemberPurchaseResponse>> Purchase([FromBody] MemberPurchaseRequest request)
     {
-        if (request.MemberLevel < 1 || request.MemberLevel > 3)
+        if (request.MemberLevel < 1 || request.MemberLevel > 4)
         {
             return ApiResponse<MemberPurchaseResponse>.Error(ErrorCodes.InvalidParameter, "会员等级无效");
         }
@@ -141,4 +151,14 @@ public class MemberController : ControllerBase
         var userIdClaim = User.FindFirst(ClaimTypes.NameIdentifier)?.Value;
         return long.TryParse(userIdClaim, out var userId) ? userId : 0;
     }
+
+    /// <summary>
+    /// 获取默认选中会员等级
+    /// </summary>
+    private async Task<int?> GetDefaultTierLevelAsync()
+    {
+        var value = await _systemConfigService.GetConfigValueAsync(
+            XiangYi.Application.Services.SystemConfigService.DefaultMemberTierLevelKey);
+        return int.TryParse(value, out var level) ? level : null;
+    }
 }
diff --git a/server/src/XiangYi.Application/DTOs/Requests/AdminUserRequests.cs b/server/src/XiangYi.Application/DTOs/Requests/AdminUserRequests.cs
index c3de3b3..9383664 100644
--- a/server/src/XiangYi.Application/DTOs/Requests/AdminUserRequests.cs
+++ b/server/src/XiangYi.Application/DTOs/Requests/AdminUserRequests.cs
@@ -69,6 +69,11 @@ public class AdminUserQueryRequest
     /// 城市
     /// </summary>
     public string? City { get; set; }
+
+    /// <summary>
+    /// 是否测试用户
+    /// </summary>
+    public bool? IsTestUser { get; set; }
 }
 
 /// <summary>
diff --git a/server/src/XiangYi.Application/DTOs/Responses/AdminUserResponses.cs b/server/src/XiangYi.Application/DTOs/Responses/AdminUserResponses.cs
index 8b75677..7402400 100644
--- a/server/src/XiangYi.Application/DTOs/Responses/AdminUserResponses.cs
+++ b/server/src/XiangYi.Application/DTOs/Responses/AdminUserResponses.cs
@@ -104,6 +104,11 @@ public class AdminUserListDto
     /// 最后登录时间
     /// </summary>
     public DateTime? LastLoginTime { get; set; }
+
+    /// <summary>
+    /// 是否测试用户
+    /// </summary>
+    public bool IsTestUser { get; set; }
 }
 
 
diff --git a/server/src/XiangYi.Application/DTOs/Responses/MemberResponses.cs b/server/src/XiangYi.Application/DTOs/Responses/MemberResponses.cs
index c686b19..73d6ac4 100644
--- a/server/src/XiangYi.Application/DTOs/Responses/MemberResponses.cs
+++ b/server/src/XiangYi.Application/DTOs/Responses/MemberResponses.cs
@@ -64,6 +64,11 @@ public class MemberInfoResponse
     /// 会员等级配置列表
     /// </summary>
     public List<MemberTierResponse> Tiers { get; set; } = new();
+
+    /// <summary>
+    /// 默认选中的会员等级（管理后台配置）
+    /// </summary>
+    public int? DefaultTierLevel { get; set; }
 }
 
 /// <summary>
diff --git a/server/src/XiangYi.Application/Interfaces/IMemberService.cs b/server/src/XiangYi.Application/Interfaces/IMemberService.cs
index 9ef5af7..81613d1 100644
--- a/server/src/XiangYi.Application/Interfaces/IMemberService.cs
+++ b/server/src/XiangYi.Application/Interfaces/IMemberService.cs
@@ -54,6 +54,12 @@ public interface IMemberService
     /// <returns>是否成功</returns>
     Task<bool> UnbindFamilyMemberAsync(long userId, long bindUserId);
 
+    /// <summary>
+    /// 获取会员等级配置列表（无需登录）
+    /// </summary>
+    /// <returns>会员等级配置列表</returns>
+    Task<List<MemberTierResponse>> GetMemberTiersAsync();
+
     /// <summary>
     /// 计算家庭版绑定后的数量（用于属性测试）
     /// </summary>
diff --git a/server/src/XiangYi.Application/Services/AdminUserService.cs b/server/src/XiangYi.Application/Services/AdminUserService.cs
index 2816a7a..1a453ef 100644
--- a/server/src/XiangYi.Application/Services/AdminUserService.cs
+++ b/server/src/XiangYi.Application/Services/AdminUserService.cs
@@ -110,6 +110,19 @@ public class AdminUserService : IAdminUserService
         // Exclude soft deleted users
         query = query.Where(u => !u.IsDeleted);
 
+        // Filter by test user
+        if (request.IsTestUser.HasValue)
+        {
+            if (request.IsTestUser.Value)
+            {
+                query = query.Where(u => u.OpenId.StartsWith("test_openid_"));
+            }
+            else
+            {
+                query = query.Where(u => !u.OpenId.StartsWith("test_openid_"));
+            }
+        }
+
         // Get total count
         var total = query.Count();
 
@@ -620,7 +633,8 @@ public class AdminUserService : IAdminUserService
             AuditStatusText = profile != null ? GetAuditStatusText(profile.AuditStatus) : null,
             ContactCount = user.ContactCount,
             CreateTime = user.CreateTime,
-            LastLoginTime = user.LastLoginTime
+            LastLoginTime = user.LastLoginTime,
+            IsTestUser = user.OpenId.StartsWith("test_openid_")
         };
     }
 
diff --git a/server/src/XiangYi.Application/Services/MemberService.cs b/server/src/XiangYi.Application/Services/MemberService.cs
index eba7104..8133f00 100644
--- a/server/src/XiangYi.Application/Services/MemberService.cs
+++ b/server/src/XiangYi.Application/Services/MemberService.cs
@@ -102,6 +102,10 @@ public class MemberService : IMemberService
             BenefitsImage = t.BenefitsImage
         }).ToList();
 
+        // 获取默认选中等级配置
+        var defaultTierLevelStr = await _systemConfigService.GetConfigValueAsync(SystemConfigService.DefaultMemberTierLevelKey);
+        int? defaultTierLevel = int.TryParse(defaultTierLevelStr, out var dtl) ? dtl : null;
+
         // 判断是否可以绑定家庭成员
         // 条件：是家庭版会员 且 不是被别人绑定的用户
         var canBindFamily = false;
@@ -124,7 +128,8 @@ public class MemberService : IMemberService
             CanBindFamily = canBindFamily,
             FamilyBindCount = familyBindCount,
             MaxFamilyBindCount = IMemberService.MaxFamilyBindCount,
-            Tiers = tiers
+            Tiers = tiers,
+            DefaultTierLevel = defaultTierLevel
         };
 
         // 获取会员记录详情
@@ -448,6 +453,22 @@ public class MemberService : IMemberService
         return true;
     }
 
+    /// <inheritdoc />
+    public async Task<List<MemberTierResponse>> GetMemberTiersAsync()
+    {
+        var tierConfigs = await _tierConfigRepository.GetListAsync(t => t.Status == 1);
+        return tierConfigs.OrderBy(t => t.Sort).Select(t => new MemberTierResponse
+        {
+            Level = t.Level,
+            Name = t.Name,
+            Badge = t.Badge,
+            Price = t.Price,
+            OriginalPrice = t.OriginalPrice,
+            Discount = t.Discount,
+            BenefitsImage = t.BenefitsImage
+        }).ToList();
+    }
+
     #region 静态辅助方法（用于属性测试）
 
     /// <summary>
diff --git a/server/src/XiangYi.Application/Services/SystemConfigService.cs b/server/src/XiangYi.Application/Services/SystemConfigService.cs
index 94a53fd..9bae329 100644
--- a/server/src/XiangYi.Application/Services/SystemConfigService.cs
+++ b/server/src/XiangYi.Application/Services/SystemConfigService.cs
@@ -63,6 +63,16 @@ public class SystemConfigService : ISystemConfigService
     /// </summary>
     public const string FamilyMemberIconKey = "family_member_icon";
 
+    /// <summary>
+    /// 限时会员图标配置键
+    /// </summary>
+    public const string TimeLimitedMemberIconKey = "time_limited_member_icon";
+
+    /// <summary>
+    /// 默认选中会员等级配置键
+    /// </summary>
+    public const string DefaultMemberTierLevelKey = "default_member_tier_level";
+
     /// <summary>
     /// 会员入口图配置键
     /// </summary>
@@ -231,12 +241,14 @@ public class SystemConfigService : ISystemConfigService
         var unlimited = await GetConfigValueAsync(UnlimitedMemberIconKey);
         var sincere = await GetConfigValueAsync(SincereMemberIconKey);
         var family = await GetConfigValueAsync(FamilyMemberIconKey);
+        var timeLimited = await GetConfigValueAsync(TimeLimitedMemberIconKey);
 
         return new MemberIconsDto
         {
             UnlimitedMemberIcon = unlimited,
             SincereMemberIcon = sincere,
-            FamilyMemberIcon = family
+            FamilyMemberIcon = family,
+            TimeLimitedMemberIcon = timeLimited
         };
     }
 
@@ -257,6 +269,10 @@ public class SystemConfigService : ISystemConfigService
             {
                 await SetConfigValueAsync(FamilyMemberIconKey, icons.FamilyMemberIcon, "家庭版会员图标URL");
             }
+            if (!string.IsNullOrEmpty(icons.TimeLimitedMemberIcon))
+            {
+                await SetConfigValueAsync(TimeLimitedMemberIconKey, icons.TimeLimitedMemberIcon, "限时会员图标URL");
+            }
             return true;
         }
         catch (Exception ex)
@@ -315,4 +331,9 @@ public class MemberIconsDto
     /// 家庭版会员图标URL
     /// </summary>
     public string? FamilyMemberIcon { get; set; }
+
+    /// <summary>
+    /// 限时会员图标URL
+    /// </summary>
+    public string? TimeLimitedMemberIcon { get; set; }
 }