diff --git a/src/i18n/index.ts b/src/i18n/index.ts
index 9d18ad7..585a459 100644
--- a/src/i18n/index.ts
+++ b/src/i18n/index.ts
@@ -1,25 +1,11 @@
 import { createI18n } from "vue-i18n";
-import { isSupportedLocale, resolveInitialLocale } from "./locales.ts";
+import { isSupportedLocale } from "./locales.ts";
 import { messages } from "./messages.ts";
 import { readStoredLocale, writeStoredLocale } from "./storage.ts";
 import { defaultLocale } from "./types.ts";
 import type { SupportedLocale } from "./types.ts";
 import { syncVantLocale } from "./vant.ts";
 
-function getNavigatorLanguages(): string[] {
-  if (typeof navigator === "undefined") {
-    return [];
-  }
-
-  const languages = navigator.languages ? [...navigator.languages] : [];
-
-  if (languages.length > 0) {
-    return languages;
-  }
-
-  return navigator.language ? [navigator.language] : [];
-}
-
 function setDocumentLanguage(locale: SupportedLocale): void {
   if (typeof document === "undefined") {
     return;
@@ -28,10 +14,11 @@ function setDocumentLanguage(locale: SupportedLocale): void {
   document.documentElement.lang = locale;
 }
 
-const initialLocale = resolveInitialLocale({
-  storedLocale: readStoredLocale(),
-  navigatorLanguages: getNavigatorLanguages(),
-});
+const storedLocale = readStoredLocale();
+const initialLocale = storedLocale ?? defaultLocale;
+if (!storedLocale) {
+  writeStoredLocale(defaultLocale);
+}
 
 syncVantLocale(initialLocale);
 setDocumentLanguage(initialLocale);
diff --git a/src/utils/request.ts b/src/utils/request.ts
index fc1ade8..1751894 100644
--- a/src/utils/request.ts
+++ b/src/utils/request.ts
@@ -1,6 +1,7 @@
 import axios from "axios";
 import type { AxiosError, AxiosRequestConfig } from "axios";
-import { getCurrentLocale } from "@/i18n";
+import { readStoredLocale } from "@/i18n/storage";
+import { defaultLocale } from "@/i18n/types";
 import type {
   ApiResponse,
   NormalizedError,
@@ -89,11 +90,7 @@ function resolveRequestLanguage(): string | null {
   if (context.language) {
     return context.language;
   }
-  try {
-    return getCurrentLocale();
-  } catch {
-    return null;
-  }
+  return readStoredLocale() ?? defaultLocale;
 }
 
 function buildContextHeaders(options?: RequestOptions): Record<string, string> {