feat: 设备码绑定改为非强制 + 随机绑定入口

- 登录后不再强制跳转设备绑定页（MobileLayout 移除拦截）
- 新建签到任务时检测未绑定设备码，弹窗提示「请先在个人中心绑定设备码」并支持跳转
- 个人中心设备码栏新增「随机」按钮：随机生成 UUID 设备码直接绑定，
  前端连续两次风险确认（随机后现有手机会提示频繁切换设备无法签到）
- 后端新增 POST /device/random-bind（登录态，随机 UUID v4 绑定，mobile_type=manual）
- 新手引导在「新建每日签到任务」前新增「先绑定设备码」步骤

backed/cmd/server/main.go

@@ -96,6 +96,7 @@ func main() {
 	device.Post("/generate", middleware.AuthRequired(), handler.GenerateDeviceQr)
 	device.Post("/submit", handler.SubmitDeviceCode)
 	device.Get("/status", middleware.AuthRequired(), handler.GetDeviceStatus)
+	device.Post("/random-bind", middleware.AuthRequired(), handler.RandomBindDevice)
 
 	// 管理后台 API
 	admin := api.Group("/admin")

backed/internal/handler/cdk.go

@@ -39,7 +39,8 @@ func getBaseDeduction() float64 {
 }
 
 // getVipCardPrice 获取 VIP 卡价格（元/张，系统设置）
-// key: vip_price_week（周卡7天，默认5元）/ vip_price_month（月卡30天，默认15元）
+// key: vip_price_week（周卡7天，默认30元）/ vip_price_month（月卡30天，默认100元）
+// （单次运行基础扣费 6 元，周卡/月卡按次折算后再给折扣）
 func getVipCardPrice(key string, def float64) float64 {
 	var cfg model.SystemConfig
 	if database.DB.Where("`key` = ?", key).First(&cfg).Error == nil {
@@ -50,8 +51,8 @@ func getVipCardPrice(key string, def float64) float64 {
 	return def
 }
 
-func getVipWeekPrice() float64  { return getVipCardPrice("vip_price_week", 5.00) }
-func getVipMonthPrice() float64 { return getVipCardPrice("vip_price_month", 15.00) }
+func getVipWeekPrice() float64  { return getVipCardPrice("vip_price_week", 30.00) }
+func getVipMonthPrice() float64 { return getVipCardPrice("vip_price_month", 100.00) }
 
 // GenerateCDK 生成CDK
 func GenerateCDK(c *fiber.Ctx) error {

backed/internal/handler/device.go

@@ -137,6 +137,32 @@ func SubmitDeviceCode(c *fiber.Ctx) error {
 	return utils.Success(c, fiber.Map{"status": "bound"})
 }
 
+// RandomBindDevice 随机生成设备码并绑定到当前用户（个人中心「随机」按钮）
+// 风险：与真实手机绑定的设备码不一致，执行签到时现有手机会提示「频繁切换设备」导致无法签到，
+// 前端已做连续两次确认；此处不再重复校验，直接生成 UUID（大写，与真实设备码格式一致）绑定。
+func RandomBindDevice(c *fiber.Ctx) error {
+	userID := c.Locals("userId").(uint)
+
+	b := make([]byte, 16)
+	if _, err := rand.Read(b); err != nil {
+		return utils.FailServer(c, "生成设备码失败")
+	}
+	// 标准 UUID v4 格式（大写），与真实设备码样式一致
+	b[6] = (b[6] & 0x0f) | 0x40
+	b[8] = (b[8] & 0x3f) | 0x80
+	deviceCode := fmt.Sprintf("%X-%X-%X-%X-%X", b[0:4], b[4:6], b[6:8], b[8:10], b[10:16])
+
+	if err := database.DB.Model(&model.SysUser{}).Where("id = ?", userID).Updates(map[string]interface{}{
+		"mobile_code": deviceCode,
+		"mobile_type": "manual",
+	}).Error; err != nil {
+		return utils.FailServer(c, "绑定失败")
+	}
+
+	slog.Info("随机绑定设备码", "userId", userID, "deviceCode", deviceCode)
+	return utils.Success(c, fiber.Map{"deviceCode": deviceCode})
+}
+
 // ClosePage 授权完成页（当 WebView 无法关闭时跳转至此）
 func ClosePage(c *fiber.Ctx) error {
 	c.Type("html")

backed/internal/handler/settings.go

@@ -35,10 +35,10 @@ func GetSettings(c *fiber.Ctx) error {
 		settings["register_reward"] = "1.00"
 	}
 	if _, ok := settings["vip_price_week"]; !ok {
-		settings["vip_price_week"] = "5.00"
+		settings["vip_price_week"] = "30.00"
 	}
 	if _, ok := settings["vip_price_month"]; !ok {
-		settings["vip_price_month"] = "15.00"
+		settings["vip_price_month"] = "100.00"
 	}
 
 	return utils.Success(c, settings)

frondend/src/App.vue

@@ -28,7 +28,7 @@ watch(
 
   <!-- Toast 容器 -->
   <Teleport to="body">
-    <div class="fixed top-4 right-4 z-50 flex flex-col gap-2 max-w-sm">
+    <div class="fixed top-4 right-4 z-[100] flex flex-col gap-2 max-w-sm">
       <TransitionGroup name="toast">
         <div
           v-for="toast in toasts"

frondend/src/api/admin.ts

@@ -138,6 +138,10 @@ export interface CDKCode {
   costPrice: number
   agentId: number
   maxRuns: number
+  /** CDK类型：count=次数卡 / vip=VIP时长卡 */
+  type: 'count' | 'vip'
+  /** VIP 时长天数（type=vip 有效：7=周卡 30=月卡） */
+  vipDays: number
   status: string
   userId: number | null
   usedAt: string | null

frondend/src/api/auth.ts

@@ -121,6 +121,11 @@ export function getDeviceStatus(token: string) {
   })
 }
 
+/** 随机生成设备码并绑定到当前账号（个人中心「随机」按钮，需连续两次风险确认） */
+export function randomBindDevice() {
+  return api.post<{ data: { deviceCode: string } }>('/device/random-bind')
+}
+
 /** 新 CDK 兑换（需验证码，由管理后台生成的 CDK；次数 CDK 加次数 / VIP CDK 延长 VIP） */
 export function redeemCDK(code: string, captchaId: string, captchaCode: string) {
   return api.post<{

frondend/src/components/GuideOverlay.vue

@@ -57,6 +57,13 @@ const steps: GuideStep[] = [
     descByKind: () =>
       '新用户注册即送奖励积分，邀请好友也能赚积分。\n积分满 1 后，点这里「兑换」按钮即可换成签到次数，1 积分 = 1 次签到，可重复兑换。',
   },
+  {
+    tab: 'profile',
+    title: '先绑定设备码',
+    targets: ['[data-guide="profile-device-code"]'],
+    descByKind: () =>
+      '签到任务依赖设备码执行。到这一栏点「重新绑定」用手机扫码授权，或点「随机」直接生成设备码。\n注意：随机设备码与真实手机不一致，执行签到时现有手机会提示「频繁切换设备」无法签到，建议优先扫码授权。',
+  },
   {
     tab: 'home',
     title: '新建每日签到任务',
@@ -90,6 +97,13 @@ const steps: GuideStep[] = [
       return '把链接发给同学，TA 通过你的链接注册登录后，你和 TA 都能获得一定积分奖励，多邀多得，随时可兑换签到次数。'
     },
   },
+  {
+    tab: 'profile',
+    title: 'VIP 会员：签到不限次',
+    targets: ['[data-guide="profile-vip-btn"]'],
+    descByKind: () =>
+      '普通签到次数：每执行一次任务扣 1 次，用完需要再兑换。\nVIP 会员：有效期内执行任务不限次数（无限次），不再扣签到次数。\n点「续费 VIP」输入 VIP 兑换码即可开通，到期时间自动顺延。',
+  },
 ]
 
 const current = computed(() => steps[step.value])

frondend/src/layouts/MobileLayout.vue

@@ -212,10 +212,7 @@ onMounted(async () => {
     const data = res.data.data
     userInfo.value = data
 
-    if (!data.mobileCode) {
-      router.replace('/bind-device')
-      return
-    }
+    // 未绑定设备码不再强制跳转绑定页（新建任务时会在入口处弹窗引导）
     // 新手引导：数据库判定该用户未看过当前版本引导则展示（跨设备一致）；
     // 本次若来自 ?guide=1 强播则优先展示（guideForced 已消费，下次加载不再生效）
     if (guideForced.value || needGuide(data)) {

frondend/src/utils/clipboard.ts

@@ -0,0 +1,42 @@
+/**
+ * 复制文本到剪贴板（兼容 HTTP / HTTPS / 移动端 WebView）
+ *
+ * 执行顺序刻意为先同步 execCommand：
+ * document.execCommand('copy') 必须在「用户手势调用栈」内同步执行才可靠，
+ * 若先 await Clipboard API 被拒（移动端 WebView 常见 NotAllowedError），
+ * 手势上下文已丢失，后续 execCommand 会静默失败（返回 false 但剪贴板无内容）。
+ *
+ * 返回是否复制成功
+ */
+export async function copyToClipboard(text: string): Promise<boolean> {
+  // 1) 同步路径：隐藏 textarea + execCommand（用户手势内，兼容性最好）
+  const ta = document.createElement('textarea')
+  ta.value = text
+  // 必须可见且在屏幕内（不可 display:none / 移出视口），否则 iOS Safari 复制失败；
+  // font-size ≥ 16px 避免 iOS focus 时触发页面缩放
+  ta.style.cssText = 'position:fixed;top:0;left:0;width:1px;height:1px;opacity:0;font-size:16px;border:0;padding:0;margin:0;'
+  ta.setAttribute('readonly', '')
+  document.body.appendChild(ta)
+  ta.focus()
+  ta.select()
+  ta.setSelectionRange(0, text.length)
+  let ok = false
+  try {
+    ok = document.execCommand('copy')
+  } catch {
+    ok = false
+  }
+  document.body.removeChild(ta)
+  if (ok) return true
+
+  // 2) 异步回退：Clipboard API（仅 HTTPS/localhost；注意此时手势可能已丢失，仅作兜底）
+  if (navigator.clipboard && window.isSecureContext) {
+    try {
+      await navigator.clipboard.writeText(text)
+      return true
+    } catch {
+      // 忽略，走失败返回
+    }
+  }
+  return false
+}

frondend/src/views/admin/AdminCdks.vue

@@ -18,6 +18,7 @@ import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
 import { useMessage } from '@/composables/useMessage'
+import { copyToClipboard } from '@/utils/clipboard'
 import * as adminApi from '@/api/admin'
 
 const message = useMessage()
@@ -170,57 +171,34 @@ function closeGenerateModal() {
 }
 
 async function copyCode(code: string, index: number) {
-  try {
-    await navigator.clipboard.writeText(code)
-    copiedIndex.value = index
-    setTimeout(() => { copiedIndex.value = null }, 2000)
-  } catch {
-    // fallback
-    const ta = document.createElement('textarea')
-    ta.value = code
-    document.body.appendChild(ta)
-    ta.select()
-    document.execCommand('copy')
-    document.body.removeChild(ta)
+  if (await copyToClipboard(code)) {
     copiedIndex.value = index
     setTimeout(() => { copiedIndex.value = null }, 2000)
+    message.success('已复制')
+  } else {
+    message.error('复制失败，请长按 CDK 码手动复制')
   }
 }
 
 async function copyResultCode(code: string, index: number) {
-  try {
-    await navigator.clipboard.writeText(code)
-    resultCopiedIdx.value = index
-    setTimeout(() => { resultCopiedIdx.value = null }, 2000)
-  } catch {
-    const ta = document.createElement('textarea')
-    ta.value = code
-    document.body.appendChild(ta)
-    ta.select()
-    document.execCommand('copy')
-    document.body.removeChild(ta)
+  if (await copyToClipboard(code)) {
     resultCopiedIdx.value = index
     setTimeout(() => { resultCopiedIdx.value = null }, 2000)
+    message.success('已复制')
+  } else {
+    message.error('复制失败，请长按 CDK 码手动复制')
   }
 }
 
 async function copyAllCodes() {
   if (resultCdks.value.length === 0) return
   const all = resultCdks.value.map((c) => c.code).join('\n')
-  try {
-    await navigator.clipboard.writeText(all)
+  if (await copyToClipboard(all)) {
     copiedAll.value = true
     message.success(`已复制全部 ${resultCdks.value.length} 个CDK`)
     setTimeout(() => { copiedAll.value = false }, 2000)
-  } catch {
-    const ta = document.createElement('textarea')
-    ta.value = all
-    document.body.appendChild(ta)
-    ta.select()
-    document.execCommand('copy')
-    document.body.removeChild(ta)
-    copiedAll.value = true
-    setTimeout(() => { copiedAll.value = false }, 2000)
+  } else {
+    message.error('复制失败，请长按 CDK 码手动复制')
   }
 }
 
@@ -344,7 +322,8 @@ function statusClass(s: string) {
             <th class="px-4 py-3 font-medium">CDK码</th>
             <th v-if="isAdmin" class="px-4 py-3 font-medium">生成代理</th>
             <th class="px-4 py-3 font-medium">售价</th>
-            <th class="px-4 py-3 font-medium">次数</th>
+            <th class="px-4 py-3 font-medium">类型</th>
+            <th class="px-4 py-3 font-medium">额度</th>
             <th class="px-4 py-3 font-medium">状态</th>
             <th class="px-4 py-3 font-medium">创建时间</th>
             <th class="px-4 py-3 font-medium">操作</th>
@@ -364,7 +343,19 @@ function statusClass(s: string) {
               {{ (cdk as any).agent?.username || cdk.agentId }}
             </td>
             <td class="px-4 py-3 font-mono whitespace-nowrap">{{ cdk.price.toFixed(2) }} 元</td>
-            <td class="px-4 py-3 text-xs text-gray-600 whitespace-nowrap">{{ cdk.maxRuns ?? 1 }}</td>
+            <td class="px-4 py-3 whitespace-nowrap">
+              <span
+                v-if="cdk.type === 'vip'"
+                class="inline-flex items-center px-2 py-0.5 rounded-full text-xs font-medium bg-amber-100 text-amber-700 whitespace-nowrap"
+              >⭐ VIP{{ cdk.vipDays === 7 ? '周卡' : '月卡' }}</span>
+              <span
+                v-else
+                class="inline-flex items-center px-2 py-0.5 rounded-full text-xs font-medium bg-blue-100 text-blue-700 whitespace-nowrap"
+              >次数卡</span>
+            </td>
+            <td class="px-4 py-3 text-xs text-gray-600 whitespace-nowrap">
+              {{ cdk.type === 'vip' ? `${cdk.vipDays} 天` : `${cdk.maxRuns ?? 1} 次` }}
+            </td>
             <td class="px-4 py-3 whitespace-nowrap">
               <span
                 class="inline-flex items-center px-2 py-0.5 rounded-full text-xs font-medium whitespace-nowrap"

frondend/src/views/admin/AdminPendingSchools.vue

@@ -4,6 +4,7 @@ import { Shield, RefreshCw, CheckCircle, Search, Eye, EyeOff, Copy } from 'lucid
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 import { useMessage } from '@/composables/useMessage'
+import { copyToClipboard } from '@/utils/clipboard'
 import api from '@/api/index'
 
 interface PendingSchoolItem {
@@ -102,10 +103,13 @@ async function handleMarkDone(record: PendingSchoolItem) {
   }
 }
 
-function copyText(text: string) {
-  navigator.clipboard.writeText(text).then(() => {
+async function copyText(text: string) {
+  const ok = await copyToClipboard(text)
+  if (ok) {
     message.success('已复制')
-  })
+  } else {
+    message.error('复制失败，请长按手动复制')
+  }
 }
 </script>
 

frondend/src/views/admin/AdminSettings.vue

@@ -41,8 +41,8 @@ async function loadSettings() {
     const res = await adminApi.getSettings()
     const settings = res.data?.data || {}
     baseDeduction.value = settings['base_deduction_per_run'] || '1.00'
-    vipWeekPrice.value = settings['vip_price_week'] || '5.00'
-    vipMonthPrice.value = settings['vip_price_month'] || '15.00'
+    vipWeekPrice.value = settings['vip_price_week'] || '30.00'
+    vipMonthPrice.value = settings['vip_price_month'] || '100.00'
     inviterReward.value = settings['inviter_reward_per_invite'] || '0.50'
     inviteeReward.value = settings['invitee_reward_per_invite'] || '0.50'
     registerReward.value = settings['register_reward'] || '1.00'

frondend/src/views/home/HomeView.vue

@@ -88,9 +88,19 @@ async function removeTaskLog(id: number) {
   }
 }
 
+// ======== 设备码绑定状态（新建任务入口拦截用） ========
+const deviceCode = ref('')
+const showBindDeviceDialog = ref(false)
+
 // ======== 初始化 ========
 onMounted(async () => {
-  // MobileLayout 已加载用户信息并处理绑设备检查
+  // 拉取设备码绑定状态（新建任务入口检测未绑定时弹窗引导）
+  try {
+    const res = await authApi.getUserInfo()
+    deviceCode.value = res.data.data?.mobileCode || ''
+  } catch {
+    // 拉取失败不阻塞页面
+  }
   // 这里直接加载任务数据和日志
   await loadTasks()
   await loadTaskLogs()
@@ -142,6 +152,11 @@ async function loadTasks() {
 
 // ======== Step 0: 选择任务标题 ========
 async function startCreateTask() {
+  // 未绑定设备码：弹窗引导去个人中心绑定，不进入创建流程
+  if (!deviceCode.value) {
+    showBindDeviceDialog.value = true
+    return
+  }
   showStep.value = true
   step.value = 0
   stepTitle.value = '选择签到任务'
@@ -1295,6 +1310,38 @@ function getGPSLocation(source: string) {
       </div>
     </Teleport>
 
+    <!-- ======== 未绑定设备码弹窗（新建任务入口拦截） ======== -->
+    <Teleport to="body">
+      <div
+        v-if="showBindDeviceDialog"
+        class="fixed inset-0 z-50 flex items-center justify-center"
+      >
+        <div class="absolute inset-0 bg-black/40" @click="showBindDeviceDialog = false" />
+        <div class="relative w-[85%] sm:max-w-sm bg-white rounded-2xl shadow-xl overflow-hidden">
+          <div class="p-6 text-center">
+            <div class="w-14 h-14 rounded-full bg-indigo-100 flex items-center justify-center mx-auto mb-4">
+              <Smartphone class="w-7 h-7 text-indigo-500" />
+            </div>
+            <h3 class="text-base font-semibold text-gray-900 mb-2">未绑定设备码</h3>
+            <p class="text-sm text-gray-500 leading-relaxed">
+              请先在个人中心绑定设备码，绑定后才能创建和执行签到任务
+            </p>
+            <div class="flex gap-2 mt-5">
+              <Button variant="outline" class="flex-1 h-10 text-sm" @click="showBindDeviceDialog = false">
+                取消
+              </Button>
+              <Button
+                class="flex-1 h-10 text-sm font-medium"
+                @click="showBindDeviceDialog = false; router.push('/profile')"
+              >
+                去绑定
+              </Button>
+            </div>
+          </div>
+        </div>
+      </div>
+    </Teleport>
+
     <!-- ======== 操作频繁弹窗（限流） ======== -->
     <Teleport to="body">
       <div

frondend/src/views/profile/ProfileView.vue

@@ -1,7 +1,7 @@
 <script setup lang="ts">
 import { ref, computed, onMounted } from 'vue'
 import { useRouter } from 'vue-router'
-import { User, IdCard, LogOut, RefreshCw, ClipboardCheck, Gift, Share2, X, MessageSquare } from 'lucide-vue-next'
+import { User, IdCard, LogOut, RefreshCw, ClipboardCheck, Gift, Share2, X, MessageSquare, Dices, TriangleAlert } from 'lucide-vue-next'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 import { useMessage } from '@/composables/useMessage'
@@ -61,8 +61,6 @@ const redeemKind = ref<'count' | 'vip'>('count')
 // VIP 信息
 const isVip = ref(false)
 const vipExpireAt = ref('')
-const vipWeekPrice = ref('')
-const vipMonthPrice = ref('')
 // 验证码
 const captchaId = ref('')
 const captchaImage = ref('')
@@ -75,14 +73,6 @@ const vipExpireShort = computed(() => {
   return vipExpireAt.value.slice(0, 10)
 })
 
-// 开通按钮价格文案：周卡 ¥5 · 月卡 ¥15（仅展示已配置的档位）
-const vipPriceLabel = computed(() => {
-  const parts: string[] = []
-  if (vipWeekPrice.value) parts.push(`周¥${vipWeekPrice.value}`)
-  if (vipMonthPrice.value) parts.push(`月¥${vipMonthPrice.value}`)
-  return parts.join(' · ')
-})
-
 // 从 axios 错误中提取后端提示文案（429 限流/服务端错误等），失败兜底通用文案
 function captchaFailMsg(e: unknown): string {
   const err = e as { response?: { data?: { message?: string } } }
@@ -130,8 +120,6 @@ onMounted(async () => {
     const vipRes = await authApi.getVipInfo()
     isVip.value = vipRes.data.data.isVip
     vipExpireAt.value = vipRes.data.data.vipExpireAt
-    vipWeekPrice.value = vipRes.data.data.vipWeekPrice || ''
-    vipMonthPrice.value = vipRes.data.data.vipMonthPrice || vipRes.data.data.vipPrice || ''
   } catch {
     // VIP 信息加载失败不阻塞页面
   }
@@ -147,6 +135,40 @@ function goRebind() {
   router.push('/bind-device')
 }
 
+// ---- 随机绑定设备码（连续两次风险确认） ----
+// 0=关闭 1=第一次确认 2=第二次确认
+const randBindStep = ref(0)
+const randBinding = ref(false)
+
+function openRandomBind() {
+  randBindStep.value = 1
+}
+
+function closeRandomBind() {
+  randBindStep.value = 0
+}
+
+async function confirmRandomBind() {
+  if (randBindStep.value === 1) {
+    // 第一次确认 → 进入第二次确认
+    randBindStep.value = 2
+    return
+  }
+  randBinding.value = true
+  try {
+    const res = await authApi.randomBindDevice()
+    if (userInfo.value) {
+      userInfo.value.mobileCode = res.data.data.deviceCode
+    }
+    randBindStep.value = 0
+    message.success('随机设备码绑定成功')
+  } catch (e: any) {
+    message.error(e?.response?.data?.message || e?.message || '绑定失败')
+  } finally {
+    randBinding.value = false
+  }
+}
+
 // ---- 兑换弹窗 ----
 function openRedeemModal(kind: 'count' | 'vip' = 'count') {
   redeemKind.value = kind
@@ -167,8 +189,6 @@ async function reloadVipInfo() {
     const vipRes = await authApi.getVipInfo()
     isVip.value = vipRes.data.data.isVip
     vipExpireAt.value = vipRes.data.data.vipExpireAt
-    vipWeekPrice.value = vipRes.data.data.vipWeekPrice || ''
-    vipMonthPrice.value = vipRes.data.data.vipMonthPrice || vipRes.data.data.vipPrice || ''
   } catch {
     // ignore
   }
@@ -279,7 +299,7 @@ async function handleRedeemInvite() {
           <img v-show="userInfo?.avatar && !avatarFailed" :src="userInfo?.avatar" class="w-full h-full object-cover" @error="avatarFailed = true" />
           <span v-if="!userInfo?.avatar || avatarFailed" class="text-3xl font-bold">{{ userInfo?.realName?.[0] || userInfo?.username?.[0] || '?' }}</span>
         </div>
-        <div v-if="isVip" class="vip-badge absolute -right-3 -top-1.5">VIP</div>
+        <div v-if="isVip" class="vip-badge absolute -right-3 -top-1.5 z-10 whitespace-nowrap">VIP</div>
       </div>
       <p class="text-xl font-bold">{{ userInfo?.realName || userInfo?.username || '--' }}</p>
       <p class="text-sm text-white/80 mt-1">{{ userInfo?.schoolName || '--' }}</p>
@@ -294,10 +314,11 @@ async function handleRedeemInvite() {
         </span>
         <span v-else class="text-xs bg-white/20 rounded-full px-3 py-1.5 text-white/95">未开通 VIP</span>
         <button
+          data-guide="profile-vip-btn"
           class="vip-btn text-xs font-semibold px-3.5 py-1.5 rounded-full text-amber-900 shadow"
           @click="openRedeemModal('vip')"
         >
-          {{ isVip ? '续费 VIP' : `开通 VIP${vipPriceLabel ? ` ${vipPriceLabel}` : ''}` }}
+          续费 VIP
         </button>
       </div>
     </div>
@@ -312,8 +333,8 @@ async function handleRedeemInvite() {
               <ClipboardCheck class="w-4 h-4 text-green-500" />
             </div>
             <div>
-              <p class="text-xs text-gray-400">可签到次数</p>
-              <p class="text-sm font-medium text-gray-900">{{ (userInfo?.signCount ?? 0) }} 次</p>
+              <p class="text-xs text-gray-400">{{ isVip ? 'VIP 签到次数' : '可签到次数' }}</p>
+              <p class="text-sm font-medium text-gray-900">{{ isVip ? '无限次' : `${userInfo?.signCount ?? 0} 次` }}</p>
             </div>
           </div>
           <button
@@ -432,7 +453,7 @@ async function handleRedeemInvite() {
           </div>
         </div>
         <!-- 设备码 -->
-        <div class="flex items-center justify-between px-4 py-3.5">
+        <div data-guide="profile-device-code" class="flex items-center justify-between px-4 py-3.5">
           <div class="flex items-center gap-3">
             <div class="w-8 h-8 rounded-full bg-indigo-50 flex items-center justify-center">
               <svg class="w-4 h-4 text-indigo-500" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
@@ -446,13 +467,22 @@ async function handleRedeemInvite() {
               </p>
             </div>
           </div>
-          <button
-            class="text-xs text-blue-500 flex items-center gap-1 hover:text-blue-600"
-            @click="goRebind"
-          >
-            <RefreshCw class="w-3 h-3" />
-            重新绑定
-          </button>
+          <div class="flex items-center gap-2">
+            <button
+              class="text-xs text-amber-600 flex items-center gap-1 hover:text-amber-700"
+              @click="openRandomBind"
+            >
+              <Dices class="w-3 h-3" />
+              随机
+            </button>
+            <button
+              class="text-xs text-blue-500 flex items-center gap-1 hover:text-blue-600"
+              @click="goRebind"
+            >
+              <RefreshCw class="w-3 h-3" />
+              重新绑定
+            </button>
+          </div>
         </div>
       </div>
 
@@ -478,7 +508,7 @@ async function handleRedeemInvite() {
             <!-- 弹窗头部 -->
             <div class="flex items-center justify-between px-5 pt-5 pb-2">
               <h3 class="text-base font-semibold text-gray-900">
-                {{ redeemKind === 'vip' ? '开通 / 续费 VIP' : '兑换签到次数' }}
+                {{ redeemKind === 'vip' ? '续费 VIP' : '兑换签到次数' }}
               </h3>
               <button class="w-7 h-7 rounded-full bg-gray-100 flex items-center justify-center text-gray-400 hover:text-gray-600" @click="closeRedeemModal">
                 <X class="w-4 h-4" />
@@ -487,9 +517,6 @@ async function handleRedeemInvite() {
 
             <!-- 弹窗内容 -->
             <div class="px-5 pb-5 space-y-4">
-              <p v-if="redeemKind === 'vip'" class="text-xs text-gray-400 leading-relaxed -mt-1">
-                输入 VIP 兑换码即可开通/续费会员（默认一个月），VIP 有效期内执行任务不限次数、不再扣除签到次数
-              </p>
               <!-- 兑换码输入 -->
               <div>
                 <label class="block text-xs font-medium text-gray-500 mb-1.5">{{ redeemKind === 'vip' ? 'VIP 兑换码' : '兑换码' }}</label>
@@ -547,6 +574,66 @@ async function handleRedeemInvite() {
         </div>
       </Transition>
     </Teleport>
+
+    <!-- 随机绑定设备码：连续两次风险确认弹窗 -->
+    <Teleport to="body">
+      <div v-if="randBindStep > 0" class="fixed inset-0 z-50 flex items-center justify-center bg-black/40 px-4" @click.self="closeRandomBind">
+        <div class="bg-white rounded-2xl shadow-xl w-full max-w-sm overflow-hidden">
+          <!-- 第一次确认 -->
+          <template v-if="randBindStep === 1">
+            <div class="px-5 pt-5 pb-2 flex items-center justify-between">
+              <h3 class="text-base font-semibold text-gray-900">随机生成设备码</h3>
+              <button class="w-7 h-7 rounded-full bg-gray-100 flex items-center justify-center text-gray-400 hover:text-gray-600" @click="closeRandomBind">
+                <X class="w-4 h-4" />
+              </button>
+            </div>
+            <div class="px-5 pb-5">
+              <div class="flex items-start gap-2.5 bg-amber-50 border border-amber-200 rounded-lg p-3">
+                <TriangleAlert class="w-4 h-4 text-amber-500 flex-shrink-0 mt-0.5" />
+                <p class="text-xs text-amber-700 leading-relaxed">
+                  随机设备码与你真实手机不一致。若你已有绑定的手机在用本系统，随机后该手机执行签到时会出现
+                  <strong>「频繁切换设备」提示，无法正常签到</strong>。
+                </p>
+              </div>
+              <p class="text-xs text-gray-400 mt-3">仅建议从未绑定过手机、或明确了解风险的账号使用。</p>
+              <div class="flex gap-2 mt-4">
+                <Button variant="outline" class="flex-1 h-10 text-sm" @click="closeRandomBind">取消</Button>
+                <Button class="flex-1 h-10 text-sm font-medium" @click="confirmRandomBind">继续</Button>
+              </div>
+            </div>
+          </template>
+
+          <!-- 第二次确认 -->
+          <template v-else>
+            <div class="px-5 pt-5 pb-2 flex items-center justify-between">
+              <h3 class="text-base font-semibold text-red-600">再次确认：确定随机？</h3>
+              <button class="w-7 h-7 rounded-full bg-gray-100 flex items-center justify-center text-gray-400 hover:text-gray-600" @click="closeRandomBind">
+                <X class="w-4 h-4" />
+              </button>
+            </div>
+            <div class="px-5 pb-5">
+              <p class="text-sm text-gray-600 leading-relaxed">
+                随机后，你现有手机登录 App 执行签到时将提示
+                <strong class="text-red-500">「频繁切换设备」而无法正常签到</strong>，
+                需要重新扫码授权绑定才能恢复。
+              </p>
+              <p class="text-xs text-gray-400 mt-2">这是最后一次确认，确定要随机生成设备码吗？</p>
+              <div class="flex gap-2 mt-4">
+                <Button variant="outline" class="flex-1 h-10 text-sm" @click="closeRandomBind">取消</Button>
+                <Button
+                  class="flex-1 h-10 text-sm font-medium bg-red-500 hover:bg-red-600"
+                  :disabled="randBinding"
+                  @click="confirmRandomBind"
+                >
+                  <RefreshCw v-if="randBinding" class="h-4 w-4 animate-spin" />
+                  {{ randBinding ? '绑定中...' : '确定随机' }}
+                </Button>
+              </div>
+            </div>
+          </template>
+        </div>
+      </div>
+    </Teleport>
   </div>
 </template>
 
@@ -560,9 +647,10 @@ async function handleRedeemInvite() {
   opacity: 0;
 }
 
-/* VIP 徽标：金色渐变 + 反光条扫过动画 */
+/* VIP 徽标：金色渐变 + 反光条扫过动画
+   注意：不可设置 position，徽标由模板上的 Tailwind absolute 类控制浮层定位，
+   若此处声明 position:relative 会覆盖 absolute，导致徽标挤进头像布局使其变形 */
 .vip-badge {
-  position: relative;
   overflow: hidden;
   padding: 2px 8px;
   border-radius: 999px;