diff --git a/src/config/douyin.ts b/src/config/douyin.ts
index a9c7ea9..291b913 100644
--- a/src/config/douyin.ts
+++ b/src/config/douyin.ts
@@ -87,6 +87,8 @@ export const douyinConfig = {
     selectQuantity: '请选择下单数量',
     orderSubmitted: '本订单号已提交制作，不能继续上传图片或生图',
     orderSubmittedBtn: '订单已提交制作',
+    orderStatFail: '订单信息获取失败，暂不可上传生图',
+    orderStatFailBtn: '暂不可上传生图',
   },
 }
 
diff --git a/src/views/douyin/generating.vue b/src/views/douyin/generating.vue
index e464bfb..29a6602 100644
--- a/src/views/douyin/generating.vue
+++ b/src/views/douyin/generating.vue
@@ -132,8 +132,6 @@ import ImagePointCloud from './components/ImagePointCloud.vue'
 import DyNavBar from './components/DyNavBar.vue'
 import { takePendingUpload } from './pendingUpload'
 
-const SUBMITTED_KEY = 'douyin_order_submitted'
-
 function isSubmittedBizError(msg: string) {
   return /已提交制作|不能继续上传|不能继续生图/.test(String(msg || ''))
 }
@@ -404,7 +402,6 @@ async function beginPendingUpload() {
     errorTip.value = msg
     // 已提交制作：不停留等待页，标记锁定并回首页
     if (isSubmittedBizError(msg)) {
-      sessionStorage.setItem(SUBMITTED_KEY, '1')
       showToast(msg)
       setTimeout(() => {
         router.replace(config.routes.home)
@@ -442,7 +439,6 @@ async function confirmSubmit() {
       imageId.value = res.imageId
       sessionStorage.setItem('douyin_image_id', res.imageId)
     }
-    sessionStorage.setItem(SUBMITTED_KEY, '1')
     showConfirmModal.value = false
     router.replace(config.routes.success)
   } catch (err: any) {
diff --git a/src/views/douyin/index.vue b/src/views/douyin/index.vue
index 07fae4b..41e4598 100644
--- a/src/views/douyin/index.vue
+++ b/src/views/douyin/index.vue
@@ -73,7 +73,11 @@
       >
         {{
           orderLocked
-            ? (lockReason === config.messages.noRemain ? config.messages.noRemain : config.messages.orderSubmittedBtn)
+            ? (Number(orderStat.order_count) > 0
+              ? config.messages.orderSubmittedBtn
+              : (lockReason === config.messages.noRemain
+                ? config.messages.noRemain
+                : config.messages.orderStatFailBtn))
             : (photoPreview ? config.messages.startGenerate : config.messages.uploadBtn)
         }}
       </button>
@@ -95,7 +99,6 @@ import { preloadLogoCloud } from './components/image-point-cloud/logo-cloud-cach
 import DyNavBar from './components/DyNavBar.vue'
 import { setPendingUpload } from './pendingUpload'
 
-const SUBMITTED_KEY = 'douyin_order_submitted'
 const SUBMITTED_MSG = '本订单号已提交制作，不能继续上传图片或生图'
 
 const router = useRouter()
@@ -108,20 +111,18 @@ const orderStat = ref<any>({})
 const orderLocked = ref(false)
 const lockReason = ref('')
 
-function markOrderSubmitted(reason?: string) {
-  orderLocked.value = true
-  lockReason.value = reason || SUBMITTED_MSG
-  sessionStorage.setItem(SUBMITTED_KEY, '1')
-}
-
+/** 仅根据接口 orders/stat 判断，不用本地缓存 */
 function applyOrderLock(res: any) {
   orderStat.value = res || {}
-  // order_count > 0 表示已提交制作，锁定上传/生图
-  if (res && Number(res.order_count) > 0) {
-    markOrderSubmitted(config.messages.orderSubmitted || SUBMITTED_MSG)
+  orderLocked.value = false
+  lockReason.value = ''
+  // order_count > 0 表示已提交制作
+  if (Number(res?.order_count) > 0) {
+    orderLocked.value = true
+    lockReason.value = config.messages.orderSubmitted || SUBMITTED_MSG
     return
   }
-  if (res && res.remain_count != null && Number(res.remain_count) <= 0) {
+  if (res?.remain_count != null && Number(res.remain_count) <= 0) {
     orderLocked.value = true
     lockReason.value = config.messages.noRemain
   }
@@ -142,8 +143,11 @@ function triggerPick() {
 function getOrderStat() {
   return badgeApi.getOrderStat({}).then((res: any) => {
     applyOrderLock(res)
-  }).catch(() => {
-    // 抖音链路可不依赖该接口，失败时不阻断上传
+  }).catch((err: any) => {
+    // stat 失败（如 code:-1 没有卡券数据）禁止上传生图
+    orderStat.value = {}
+    orderLocked.value = true
+    lockReason.value = err?.message || config.messages.orderStatFail || '订单信息获取失败，暂不可上传生图'
   })
 }
 
@@ -180,28 +184,23 @@ function onFileChange(e: Event) {
   }
 }
 
-function onSubmit() {
+async function onSubmit() {
   if (submitting.value) return
-  if (orderLocked.value) {
-    showToast(lockReason.value || SUBMITTED_MSG)
-    return
-  }
   if (!photoFile.value || !photoPreview.value) {
     showToast(config.messages.pleaseUpload)
     return
   }
-  if (Number(orderStat.value.order_count) > 0) {
-    markOrderSubmitted()
+
+  submitting.value = true
+  // 提交前重新拉 orders/stat，不依赖本地缓存 / 页面内存旧值
+  await getOrderStat()
+  if (orderLocked.value) {
+    submitting.value = false
     showToast(lockReason.value || SUBMITTED_MSG)
     return
   }
-  if (orderStat.value.remain_count != null && Number(orderStat.value.remain_count) <= 0) {
-    showToast(config.messages.noRemain)
-    return
-  }
 
   // 先跳等待页，后台再上传/生图（不弹成功失败 toast）
-  submitting.value = true
   setPendingUpload(photoFile.value, photoPreview.value)
   sessionStorage.setItem('douyin_source_preview', photoPreview.value)
   router.push({
@@ -212,9 +211,6 @@ function onSubmit() {
 }
 
 onMounted(() => {
-  if (sessionStorage.getItem(SUBMITTED_KEY) === '1') {
-    markOrderSubmitted()
-  }
   getOrderStat()
   // 预采样 Logo 点云，进入等待页可立刻上屏
   preloadLogoCloud().catch(() => {})
diff --git a/src/views/douyin/preview.vue b/src/views/douyin/preview.vue
index 65fdeda..3822153 100644
--- a/src/views/douyin/preview.vue
+++ b/src/views/douyin/preview.vue
@@ -164,7 +164,6 @@ function confirmOrder() {
       imageId.value = res.imageId
       sessionStorage.setItem('douyin_image_id', res.imageId)
     }
-    sessionStorage.setItem('douyin_order_submitted', '1')
     showConfirmModal.value = false
     showSuccessToast({
       message: config.messages.orderSuccess,