diff --git a/src/api/app/package.ts b/src/api/app/package.ts
index 46bbd2a6..e5a8c49a 100644
--- a/src/api/app/package.ts
+++ b/src/api/app/package.ts
@@ -117,16 +117,3 @@ const AppPackageAPI = {
 };
 
 export default AppPackageAPI;
-
-/**
- * 拼接静态资源完整访问地址（img / el-image 的 src 不经过 axios，需手动补 baseURL）
- * 说明：后端现在直接返回 OSS 绝对地址（https://xxx.aliyuncs.com/...），不再需要拼前缀，
- * 这里同时兼容历史相对路径（/20261019/xxx.png）。
- */
-export function withBase(url?: string): string {
-  if (!url) return "";
-  // 已是绝对地址（http(s)://、协议相对 //、base64）时原样返回，避免拼出 /dev-apihttps://... 这类错误地址
-  if (/^(https?:)?\/\//i.test(url) || url.startsWith("data:")) return url;
-  const baseApi = import.meta.env.VITE_APP_BASE_API ?? "";
-  return `${baseApi.replace(/\/$/, "")}${url.startsWith("/") ? "" : "/"}${url}`;
-}
diff --git a/src/components/DeviceSn/DeviceSnDetail.vue b/src/components/DeviceSn/DeviceSnDetail.vue
index e95064f7..f1b679cc 100644
--- a/src/components/DeviceSn/DeviceSnDetail.vue
+++ b/src/components/DeviceSn/DeviceSnDetail.vue
@@ -125,7 +125,7 @@
           <el-carousel-item v-for="(item, index) in screenshots" :key="item.id">
             <div class="screenshot-item">
               <el-image
-                :src="resolveIconUrl(item.url)"
+                :src="withBase(item.url)"
                 fit="contain"
                 class="screenshot-image"
                 @click="openPreview(index)"
@@ -148,7 +148,7 @@
         <!-- 全屏预览单张截图 -->
         <el-image-viewer
           v-if="previewVisible"
-          :url-list="screenshots.map((s) => resolveIconUrl(s.url) as string)"
+          :url-list="screenshots.map((s) => withBase(s.url) as string)"
           :initial-index="previewIndex"
           teleported
           @close="previewVisible = false"
@@ -564,10 +564,10 @@
             <el-table-column label="图标" width="70" align="center">
               <template #default="{ row }">
                 <el-image
-                  :src="resolveIconUrl(row.iconUrl)"
+                  :src="withBase(row.iconUrl)"
                   fit="cover"
                   class="apk-icon"
-                  :preview-src-list="row.iconUrl ? [resolveIconUrl(row.iconUrl)] : []"
+                  :preview-src-list="row.iconUrl ? [withBase(row.iconUrl)] : []"
                   preview-teleported
                 >
                   <template #error>
@@ -822,6 +822,7 @@ import {
   Select,
 } from "@element-plus/icons-vue";
 import { ElMessage, ElMessageBox } from "element-plus";
+import { withBase } from "@/utils/asset-url";
 
 // 接收传入的 props
 interface Props {
@@ -851,7 +852,7 @@ watch(
       loadAll(newSerialno);
     }
   },
-  { immediate: true }
+  { immediate: true },
 );
 
 const activeNames = ref(["basic", "hardware", "network", "security", "other"]);
@@ -957,22 +958,6 @@ const policyItems: { label: string; field: string }[] = [
   { label: "深色模式", field: "darkMode" },
 ];
 
-/**
- * 拼接应用图标完整访问地址
- *
- * 后端返回的是相对路径（如 /static/app_icon/{md5}.png）。
- * img/el-image 的 src 是浏览器原生请求，不经过 axios，拿不到 baseURL，
- * 因此必须手动补上代理前缀，否则请求会打到前端 dev server 上导致 404。
- */
-function resolveIconUrl(url?: string | null): string {
-  if (!url) return "";
-  // 已是绝对地址（http/https）或 base64，直接返回
-  if (/^(https?:)?\/\//.test(url) || url.startsWith("data:")) return url;
-  const baseApi = import.meta.env.VITE_APP_BASE_API ?? "";
-  // 避免 baseApi 结尾与 url 开头的斜杠重复
-  return `${baseApi.replace(/\/$/, "")}${url.startsWith("/") ? "" : "/"}${url}`;
-}
-
 /** 空值统一显示占位符 */
 function formatText(value?: string | number | null): string {
   return value === undefined || value === null || value === "" ? "-" : String(value);
@@ -1016,7 +1001,7 @@ function dateValue(value?: Date | string | null): number {
 
 function assignTo<T extends object>(reactiveObj: T, data?: object) {
   Object.keys(reactiveObj as object).forEach(
-    (key) => delete (reactiveObj as Record<string, unknown>)[key]
+    (key) => delete (reactiveObj as Record<string, unknown>)[key],
   );
   if (data) {
     Object.assign(reactiveObj, data);
@@ -1440,7 +1425,7 @@ const handleClearAppData = (row: ApkInstallInfo) => {
       confirmButtonText: "确定",
       cancelButtonText: "取消",
       type: "warning",
-    }
+    },
   )
     .then(() => {
       DeviceAPI.clearAppData(props.serialno, row.packageName ?? "").then(() => {
@@ -1459,7 +1444,7 @@ const handleUninstallApp = (row: ApkInstallInfo) => {
       confirmButtonText: "确定",
       cancelButtonText: "取消",
       type: "error",
-    }
+    },
   )
     .then(() => {
       DeviceAPI.uninstallApp(props.serialno, row.packageName ?? "").then(() => {
@@ -1513,7 +1498,7 @@ onMounted(() => {
   const sse = useSse();
   unsubscribeDeviceOnlineStatus = sse.on<DeviceOnlineVO>(
     "device-online-status",
-    handleDeviceOnlineStatus
+    handleDeviceOnlineStatus,
   );
 });
 
diff --git a/src/utils/asset-url.ts b/src/utils/asset-url.ts
new file mode 100644
index 00000000..f73a5c58
--- /dev/null
+++ b/src/utils/asset-url.ts
@@ -0,0 +1,13 @@
+/**
+ * 拼接静态资源完整访问地址
+ *
+ * img / el-image 的 src 不经过 axios，拿不到请求实例的 baseURL，
+ * 这里按当前环境补上代理前缀，兼容后端返回的相对路径。
+ */
+export function withBase(url?: string | null): string {
+  if (!url) return "";
+  // 绝对地址（http(s)://、协议相对 //、base64）原样返回
+  if (/^(https?:)?\/\//i.test(url) || url.startsWith("data:")) return url;
+  const baseApi = import.meta.env.VITE_APP_BASE_API ?? "";
+  return `${baseApi.replace(/\/$/, "")}${url.startsWith("/") ? "" : "/"}${url}`;
+}
diff --git a/src/views/app-manager/upload-package/components/UploadDialog.vue b/src/views/app-manager/upload-package/components/UploadDialog.vue
index aedbee7f..0253bbf7 100644
--- a/src/views/app-manager/upload-package/components/UploadDialog.vue
+++ b/src/views/app-manager/upload-package/components/UploadDialog.vue
@@ -159,7 +159,8 @@ import { onMounted, reactive, ref } from "vue";
 import { ElMessage, type FormInstance } from "element-plus";
 import { Box, Delete, Document, Picture, UploadFilled } from "@element-plus/icons-vue";
 import { parseApkMeta } from "apk-meta-parser";
-import AppPackageAPI, { withBase, type AppPackage } from "@/api/app/package";
+import AppPackageAPI, { type AppPackage } from "@/api/app/package";
+import { withBase } from "@/utils/asset-url";
 import AppCategoryAPI, { type AppCategory } from "@/api/app/category";
 
 const visible = defineModel<boolean>("visible", { default: false });
diff --git a/src/views/app-manager/upload-package/index.vue b/src/views/app-manager/upload-package/index.vue
index 5519c72d..01910054 100644
--- a/src/views/app-manager/upload-package/index.vue
+++ b/src/views/app-manager/upload-package/index.vue
@@ -239,7 +239,8 @@ import {
   View,
 } from "@element-plus/icons-vue";
 import { ElMessage } from "element-plus";
-import AppPackageAPI, { withBase, type AppPackage, type PackageType } from "@/api/app/package";
+import AppPackageAPI, { type AppPackage, type PackageType } from "@/api/app/package";
+import { withBase } from "@/utils/asset-url";
 import AppCategoryAPI, { type AppCategory } from "@/api/app/category";
 import UploadDialog from "./components/UploadDialog.vue";
 
diff --git a/src/views/devices/app-icon/index.vue b/src/views/devices/app-icon/index.vue
index ec98ff02..1e404884 100644
--- a/src/views/devices/app-icon/index.vue
+++ b/src/views/devices/app-icon/index.vue
@@ -81,7 +81,7 @@
         <el-table-column label="图标" width="100" align="center">
           <template #default="scope">
             <el-image
-              :src="resolveIconUrl(scope.row.iconUrl)"
+              :src="withBase(scope.row.iconUrl)"
               fit="contain"
               style="width: 48px; height: 48px; border-radius: 6px"
               :preview-src-list="previewList"
@@ -236,6 +236,7 @@ import {
 import { usePageTable } from "@/composables";
 import AppIconAPI from "@/api/device/appIcon";
 import type { AppIconQuery, AppIconVO } from "@/api/device/types";
+import { withBase } from "@/utils/asset-url";
 
 defineOptions({
   name: "AppIcon",
@@ -275,25 +276,12 @@ function handleCurrentChange(row: AppIconVO | null) {
   selectedRow.value = row;
 }
 
-const previewList = computed(() => list.value.map((item) => resolveIconUrl(item.iconUrl)));
+const previewList = computed(() => list.value.map((item) => withBase(item.iconUrl)));
 const previewIndex = (row: AppIconVO) => {
   const idx = list.value.findIndex((item) => item.id === row.id);
   return idx < 0 ? 0 : idx;
 };
 
-/**
- * 拼接图标完整访问地址
- * 后端返回的是相对路径（如 /static/app_icon/{md5}.png）。
- * el-image 的 src 是浏览器原生请求，不经过 axios，拿不到 baseURL，
- * 因此必须手动补上代理前缀（VITE_APP_BASE_API），否则请求会打到前端 dev server 上导致 404。
- */
-function resolveIconUrl(url?: string | null): string {
-  if (!url) return "";
-  if (/^(https?:)?\/\//.test(url) || url.startsWith("data:")) return url;
-  const baseApi = import.meta.env.VITE_APP_BASE_API ?? "";
-  return `${baseApi.replace(/\/$/, "")}${url.startsWith("/") ? "" : "/"}${url}`;
-}
-
 function validateUploadFile(file: UploadRawFile) {
   const allowExt = ["jpg", "jpeg", "png", "webp"];
   const ext = file.name.split(".").pop()?.toLowerCase() || "";
diff --git a/src/views/update/global/index.vue b/src/views/update/global/index.vue
index f425cd1d..79ff71ba 100644
--- a/src/views/update/global/index.vue
+++ b/src/views/update/global/index.vue
@@ -386,7 +386,7 @@ import {
   View,
 } from "@element-plus/icons-vue";
 import { ElMessage, ElMessageBox, type FormInstance, type FormRules } from "element-plus";
-import { withBase } from "@/api/app/package";
+import { withBase } from "@/utils/asset-url";
 import UpdateChannelAPI, { type UpdateChannel } from "@/api/update/channel";
 import AppUpdateReleaseAPI, {
   type AppUpdateRelease,
@@ -459,7 +459,7 @@ watch(
   () => form.listed,
   (listed) => {
     if (!listed) form.forceUpdate = false;
-  }
+  },
 );
 
 const detailVisible = ref(false);
@@ -697,7 +697,7 @@ async function handlePublish(row: AppUpdateRelease) {
   await ElMessageBox.confirm(
     `确认将「${row.appLabel || row.packageName} ${row.versionName || row.versionCode}」发布给全部设备？同渠道同应用的其余已发布版本会被自动停止。`,
     "发布确认",
-    { type: "warning" }
+    { type: "warning" },
   );
   try {
     await AppUpdateReleaseAPI.publish(row.id);
@@ -713,7 +713,7 @@ async function handleStop(row: AppUpdateRelease) {
   await ElMessageBox.confirm(
     `停止后设备将不再检查到「${row.appLabel || row.packageName} ${row.versionName || row.versionCode}」，确认停止？`,
     "停止确认",
-    { type: "warning" }
+    { type: "warning" },
   );
   try {
     await AppUpdateReleaseAPI.stop(row.id);
diff --git a/src/views/update/gray/index.vue b/src/views/update/gray/index.vue
index be3c4dc3..e559ce6b 100644
--- a/src/views/update/gray/index.vue
+++ b/src/views/update/gray/index.vue
@@ -439,7 +439,7 @@ import {
   View,
 } from "@element-plus/icons-vue";
 import { ElMessage, ElMessageBox, type FormInstance, type FormRules } from "element-plus";
-import { withBase } from "@/api/app/package";
+import { withBase } from "@/utils/asset-url";
 import UpdateChannelAPI, { type UpdateChannel } from "@/api/update/channel";
 import type { UpdateReleaseStatus } from "@/api/update/global";
 import AppUpdateGrayAPI, {
@@ -531,7 +531,7 @@ watch(
   () => form.listed,
   (listed) => {
     if (!listed) form.forceUpdate = false;
-  }
+  },
 );
 
 watch(
@@ -543,7 +543,7 @@ watch(
       form.channelCode = "";
     }
     formRef.value?.clearValidate(["channelCode", "snList"]);
-  }
+  },
 );
 
 const detailVisible = ref(false);
@@ -784,8 +784,8 @@ async function readSnFile(file: File): Promise<string[]> {
   }
   return Array.from(
     new Set(
-      cells.map((cell) => cell.trim()).filter((cell) => cell && !SN_HEADER_PATTERN.test(cell))
-    )
+      cells.map((cell) => cell.trim()).filter((cell) => cell && !SN_HEADER_PATTERN.test(cell)),
+    ),
   );
 }
 
@@ -844,7 +844,7 @@ async function handlePublish(row: AppUpdateGrayRelease) {
   await ElMessageBox.confirm(
     `确认将「${row.appLabel || row.packageName} ${row.versionName || row.versionCode}」灰度发布给${targetText(row)}？目标重叠的已发布灰度会被自动停止。`,
     "发布确认",
-    { type: "warning" }
+    { type: "warning" },
   );
   try {
     await AppUpdateGrayAPI.publish(row.id);
@@ -860,7 +860,7 @@ async function handleStop(row: AppUpdateGrayRelease) {
   await ElMessageBox.confirm(
     `停止后${targetText(row)}将不再检查到该灰度版本，确认停止？`,
     "停止确认",
-    { type: "warning" }
+    { type: "warning" },
   );
   try {
     await AppUpdateGrayAPI.stop(row.id);
diff --git a/src/views/update/save-flow/index.vue b/src/views/update/save-flow/index.vue
index c3ec28b1..b55103fa 100644
--- a/src/views/update/save-flow/index.vue
+++ b/src/views/update/save-flow/index.vue
@@ -330,7 +330,7 @@ import {
   WarningFilled,
 } from "@element-plus/icons-vue";
 import { ElMessage, ElMessageBox, ElNotification } from "element-plus";
-import { withBase } from "@/api/app/package";
+import { withBase } from "@/utils/asset-url";
 import UpdateChannelAPI, { type UpdateChannel } from "@/api/update/channel";
 import AppUpdateReleaseAPI, { type AppUpdateRelease } from "@/api/update/global";
 import AppUpdatePatchAPI, { type AppUpdatePatch, type PatchStatus } from "@/api/update/save-flow";
@@ -405,7 +405,7 @@ function shortHash(value: string | null) {
 /** 轮询发现生成中的记录出结果时提示，一次提交多个任务时合并成一条 */
 function notifyOutcomes(before: Map<string, PatchStatus>, rows: AppUpdatePatch[]) {
   const finished = rows.filter(
-    (row) => before.get(row.id) === "GENERATING" && row.status !== "GENERATING"
+    (row) => before.get(row.id) === "GENERATING" && row.status !== "GENERATING",
   );
   if (finished.length === 0) {
     return;
@@ -448,14 +448,14 @@ function notifyOutcomes(before: Map<string, PatchStatus>, rows: AppUpdatePatch[]
             .slice(0, 3)
             .map(
               (row) =>
-                `${row.baseVersionName} → ${row.targetVersionName}：${row.errorMessage || row.advice}`
+                `${row.baseVersionName} → ${row.targetVersionName}：${row.errorMessage || row.advice}`,
             )
             .join("；")
         : finished
             .slice(0, 3)
             .map(
               (row) =>
-                `${row.baseVersionName} → ${row.targetVersionName}：${ratioText(row.patchRatio)}`
+                `${row.baseVersionName} → ${row.targetVersionName}：${ratioText(row.patchRatio)}`,
             )
             .join("；"),
     duration: 8000,
@@ -573,7 +573,7 @@ async function handleRegenerate(row: AppUpdatePatch) {
     await ElMessageBox.confirm(
       `将重新生成 ${row.baseVersionName} → ${row.targetVersionName} 的差分补丁，原有补丁会被覆盖。`,
       "重新生成",
-      { type: "warning" }
+      { type: "warning" },
     );
   } catch {
     return;
@@ -593,7 +593,7 @@ async function handleDelete(row: AppUpdatePatch) {
     await ElMessageBox.confirm(
       `删除 ${row.baseVersionName} → ${row.targetVersionName} 的差分补丁？`,
       "删除确认",
-      { type: "warning" }
+      { type: "warning" },
     );
   } catch {
     return;