diff --git a/docs/前端页面设计规范.md b/docs/前端页面设计规范.md
index 0c6752e..92b6bdd 100644
--- a/docs/前端页面设计规范.md
+++ b/docs/前端页面设计规范.md
@@ -572,7 +572,7 @@ const { t } = useI18n();
 1. **前后端分域名**（方案 A）：站点如 `ideship.com` / `test.ideship.com`，API 如 `api.ideship.com` / `api.test.ideship.com`。浏览器直连 API，前端容器不做 Admin 反代，也无 `/__cos__` 反代。
 2. SPA 回退由 `serve -s`（或等价静态服务器）处理；刷新 `/order/batchJobs` 等路径应回 `index.html`，不依赖 nginx `try_files`。
 3. 官网 **`/`** 为 Vue 路由（`src/views/site`）；静态资源在 **`/site/`**；**`/9610.html`** 为 `public/9610.html`。客户登录 **`/login`**，管理端 **`/admin`**。
-4. 面单/附件预览：开发环境可用 Vite `/__cos__`；**生产**经鉴权 `file-storage/stream` → blob，勿直开 `https://cos.*`（自定义域证书常不匹配）。
+4. 面单/附件预览：开发可用 Vite `/__cos__`；生产优先 `file-storage/access-url` 新鲜签名直开，失败再 `stream` → blob（勿依赖过期库内签名 URL）。
 5. 本地 `pnpm dev` 不受 Ingress 限制；`/` 即为官网。
 
 ---
diff --git a/src/utils/printPreview.ts b/src/utils/printPreview.ts
index d758a37..ba1e423 100644
--- a/src/utils/printPreview.ts
+++ b/src/utils/printPreview.ts
@@ -1,5 +1,5 @@
 import { axiosInstance } from '@/api/rbac'
-import { normalizeFileStorageKey, streamFileBlob } from '@/api/fileStorage'
+import { getFileAccessUrl, normalizeFileStorageKey, streamFileBlob } from '@/api/fileStorage'
 import {
   encodeCosSignedQuery,
   extractOmsRequestError,
@@ -432,10 +432,49 @@ export async function fetchPrintAssetBytes(rawUrl: string): Promise<Uint8Array>
   return new Uint8Array(await blob.arrayBuffer())
 }
 
+/**
+ * 经 /file-storage/access-url 换新鲜可直开地址（重新签名）。
+ * 返回非 http(s)（如 Local 降级 key）时视为失败，由调用方走 stream→blob。
+ */
+async function resolveFreshAccessUrl(rawUrl: string): Promise<string | null> {
+  const keys = await buildPrintStreamKeyCandidates(rawUrl)
+  if (!keys.length) return null
+
+  // 优先 object key，再试完整签名 URL（后端会剥签重签）
+  const ordered = [
+    ...keys.filter((k) => !/^https?:\/\//i.test(k)),
+    ...keys.filter((k) => /^https?:\/\//i.test(k)),
+  ]
+
+  for (const key of ordered) {
+    try {
+      const { url } = await getFileAccessUrl(key)
+      const trimmed = String(url || '').trim()
+      if (/^https?:\/\//i.test(trimmed)) return trimmed
+    } catch {
+      // 试下一个候选
+    }
+  }
+  return null
+}
+
+function writePreviewStatus(win: Window, title: string, bodyHtml: string, color = '#666') {
+  try {
+    win.document.open()
+    win.document.write(
+      `<!doctype html><title>${escapeHtml(title)}</title>` +
+        `<body style="font:14px/1.5 sans-serif;padding:24px;color:${color}">${bodyHtml}</body>`,
+    )
+    win.document.close()
+  } catch {
+    // 跨域或 document 不可写时忽略
+  }
+}
+
 /**
  * 新标签页预览面单/附件。
  * - 开发 + COS：同步打开 Vite `/__cos__/…`（`;`→`%3B`）。
- * - 生产：无站内反代，一律 file-storage/stream → blob（避免直开 cos 证书告警）。
+ * - 其余：access-url 新鲜签名直开；失败再 file-storage/stream → blob。
  */
 export async function openPrintAssetInNewTab(
   rawUrl: string,
@@ -458,40 +497,28 @@ export async function openPrintAssetInNewTab(
     }
   }
 
-  // 同步开页，避免 await 后被当成非用户手势拦截；失败时在页内写错误，不直接 close
+  // 同步开页，避免 await 后被当成非用户手势拦截
   const win = window.open('about:blank', '_blank')
   if (!win) {
     throw new Error('请允许浏览器弹窗以预览文件')
   }
   const title = options?.loadingTitle || '加载中…'
-  try {
-    win.document.open()
-    win.document.write(
-      `<!doctype html><title>${escapeHtml(title)}</title>` +
-        `<body style="font:14px/1.5 sans-serif;padding:24px;color:#666">${escapeHtml(title)}…</body>`,
-    )
-    win.document.close()
-  } catch {
-    // 个别环境写 document 失败时仍继续拉 blob
-  }
+  writePreviewStatus(win, title, `${escapeHtml(title)}…`)
 
   try {
+    const accessUrl = await resolveFreshAccessUrl(raw)
+    if (accessUrl) {
+      win.location.href = accessUrl
+      return
+    }
+
     const blob = await fetchPreviewBlob(raw)
     const blobUrl = URL.createObjectURL(blob)
     win.location.href = blobUrl
     window.setTimeout(() => URL.revokeObjectURL(blobUrl), 120_000)
   } catch (e) {
     const msg = e instanceof Error ? e.message : String(e || '预览失败')
-    try {
-      win.document.open()
-      win.document.write(
-        `<!doctype html><title>预览失败</title>` +
-          `<body style="font:14px/1.5 sans-serif;padding:24px;color:#c00">${escapeHtml(msg)}</body>`,
-      )
-      win.document.close()
-    } catch {
-      // ignore
-    }
+    writePreviewStatus(win, '预览失败', escapeHtml(msg), '#c00')
     throw e
   }
 }
diff --git a/src/views/channel/labelDesign/LabelDesignerPanel.vue b/src/views/channel/labelDesign/LabelDesignerPanel.vue
index 8321764..dcb551f 100644
--- a/src/views/channel/labelDesign/LabelDesignerPanel.vue
+++ b/src/views/channel/labelDesign/LabelDesignerPanel.vue
@@ -111,6 +111,7 @@ const MOCK_BY_FIELD: Record<string, string> = {
   markReference: 'SF1234567890',
   markBoxNo: 'BOX-001',
   boxSeqNo: '1',
+  boxCount: '2',
   barcode: 'BOX-001',
   boxIndexText: '1/2',
   skuSummary: 'SKU001 T-Shirt×2\nSKU002 Pants×1',