diff --git a/better-github-nav.user.js b/better-github-nav.user.js
index 2845866..f2d5ca6 100644
--- a/better-github-nav.user.js
+++ b/better-github-nav.user.js
@@ -2,7 +2,7 @@
 // @name         Better GitHub Navigation
 // @name:zh-CN   更好的 GitHub 导航栏
 // @namespace    https://github.com/ImXiangYu/better-github-nav
-// @version      0.1.50
+// @version      0.1.51
 // @description  Supports adding commonly used sections such as Dashboard, Explore, Trending, Collections, and Stars to the navigation bar for one-click access. Allows customization of visibility and order. Supports dark mode and narrow-screen layouts. Also includes a “GitHub Top Repositories” feature for pinning repositories, making frequently used repositories easy to access.
 // @description:zh-CN 支持将 DashBoard、Explore、Trending、Collections、Stars 等常用入口放入导航栏中一键直达。支持自定义是否显示，自定义顺序。支持深色模式、窄屏场景。同时加入了 Github Top repositories 显示仓库置顶功能，常用仓库一键置顶，方便查看。
 // @author       Ayubass
@@ -16,7 +16,7 @@
 
 (() => {
   // src/constants.js
-  var SCRIPT_VERSION = "0.1.50";
+  var SCRIPT_VERSION = "0.1.51";
   var CUSTOM_BUTTON_CLASS = "custom-gh-nav-btn";
   var CUSTOM_BUTTON_ACTIVE_CLASS = "custom-gh-nav-btn-active";
   var CUSTOM_BUTTON_COMPACT_CLASS = "custom-gh-nav-btn-compact";
@@ -53,7 +53,7 @@
       menuResetSettings: "Better GitHub Nav: 重置快捷链接配置",
       menuLangZh: "Better GitHub Nav: 界面语言 -> 中文",
       menuLangEn: "Better GitHub Nav: 界面语言 -> English",
-      menuLangAuto: "Better GitHub Nav: 界面语言 -> 自动（跟随页面）",
+      menuLangAuto: "Better GitHub Nav: 界面语言 -> 自动（跟随浏览器）",
       menuThemeLight: "Better GitHub Nav: 主题 -> 亮色",
       menuThemeDark: "Better GitHub Nav: 主题 -> 暗色",
       menuThemeAuto: "Better GitHub Nav: 主题 -> 自动（跟随 GitHub）",
@@ -78,7 +78,7 @@
       menuResetSettings: "Better GitHub Nav: Reset Quick Link Config",
       menuLangZh: "Better GitHub Nav: UI Language -> 中文",
       menuLangEn: "Better GitHub Nav: UI Language -> English",
-      menuLangAuto: "Better GitHub Nav: UI Language -> Auto (Follow Page)",
+      menuLangAuto: "Better GitHub Nav: UI Language -> Auto (Follow Browser)",
       menuThemeLight: "Better GitHub Nav: Theme -> Light",
       menuThemeDark: "Better GitHub Nav: Theme -> Dark",
       menuThemeAuto: "Better GitHub Nav: Theme -> Auto (Follow GitHub)",
@@ -168,6 +168,16 @@
 
   // src/i18n.js
   var uiLang = detectUiLang();
+  function detectAutoUiLang() {
+    const browserLocales = [
+      ...Array.isArray(navigator.languages) ? navigator.languages : [],
+      navigator.language
+    ].map((locale) => String(locale || "").toLowerCase()).filter(Boolean);
+    if (browserLocales.some((locale) => locale.startsWith("zh"))) return "zh";
+    if (browserLocales.some((locale) => locale.startsWith("en"))) return "en";
+    const pageLang = (document.documentElement.lang || "").toLowerCase();
+    return pageLang.startsWith("zh") ? "zh" : "en";
+  }
   function t(key, vars = {}) {
     const dict = I18N[uiLang] || I18N.en;
     const fallback = I18N.en;
@@ -180,8 +190,7 @@
       if (preferredLang === "zh" || preferredLang === "en") return preferredLang;
     } catch (e) {
     }
-    const autoLang = (document.documentElement.lang || navigator.language || "").toLowerCase();
-    return autoLang.startsWith("zh") ? "zh" : "en";
+    return detectAutoUiLang();
   }
   function setUiLangPreference(lang) {
     try {
diff --git a/package-lock.json b/package-lock.json
index e3c7676..8c6f22a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "better-github-nav",
-  "version": "0.1.50",
+  "version": "0.1.51",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "better-github-nav",
-      "version": "0.1.50",
+      "version": "0.1.51",
       "license": "MIT",
       "devDependencies": {
         "esbuild": "^0.27.3"
diff --git a/package.json b/package.json
index 9055b25..53d08d2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "better-github-nav",
-  "version": "0.1.50",
+  "version": "0.1.51",
   "description": "Bring Dashboard, Trending, Explore, Collections, and Stars closer on desktop and narrow screens, and keep your most-used repositories pinned where they are easiest to reach.",
   "private": true,
   "scripts": {
diff --git a/src/constants.js b/src/constants.js
index 7e8d8b1..eaba709 100644
--- a/src/constants.js
+++ b/src/constants.js
@@ -39,7 +39,7 @@ export const I18N = {
         menuResetSettings: 'Better GitHub Nav: 重置快捷链接配置',
         menuLangZh: 'Better GitHub Nav: 界面语言 -> 中文',
         menuLangEn: 'Better GitHub Nav: 界面语言 -> English',
-        menuLangAuto: 'Better GitHub Nav: 界面语言 -> 自动（跟随页面）',
+        menuLangAuto: 'Better GitHub Nav: 界面语言 -> 自动（跟随浏览器）',
         menuThemeLight: 'Better GitHub Nav: 主题 -> 亮色',
         menuThemeDark: 'Better GitHub Nav: 主题 -> 暗色',
         menuThemeAuto: 'Better GitHub Nav: 主题 -> 自动（跟随 GitHub）',
@@ -64,7 +64,7 @@ export const I18N = {
         menuResetSettings: 'Better GitHub Nav: Reset Quick Link Config',
         menuLangZh: 'Better GitHub Nav: UI Language -> 中文',
         menuLangEn: 'Better GitHub Nav: UI Language -> English',
-        menuLangAuto: 'Better GitHub Nav: UI Language -> Auto (Follow Page)',
+        menuLangAuto: 'Better GitHub Nav: UI Language -> Auto (Follow Browser)',
         menuThemeLight: 'Better GitHub Nav: Theme -> Light',
         menuThemeDark: 'Better GitHub Nav: Theme -> Dark',
         menuThemeAuto: 'Better GitHub Nav: Theme -> Auto (Follow GitHub)',
diff --git a/src/i18n.js b/src/i18n.js
index 2e3b31c..51dfeba 100644
--- a/src/i18n.js
+++ b/src/i18n.js
@@ -2,6 +2,21 @@ import { I18N, UI_LANG_STORAGE_KEY } from './constants.js';
 
 let uiLang = detectUiLang();
 
+function detectAutoUiLang() {
+    const browserLocales = [
+        ...(Array.isArray(navigator.languages) ? navigator.languages : []),
+        navigator.language
+    ]
+        .map(locale => String(locale || '').toLowerCase())
+        .filter(Boolean);
+
+    if (browserLocales.some(locale => locale.startsWith('zh'))) return 'zh';
+    if (browserLocales.some(locale => locale.startsWith('en'))) return 'en';
+
+    const pageLang = (document.documentElement.lang || '').toLowerCase();
+    return pageLang.startsWith('zh') ? 'zh' : 'en';
+}
+
 export function t(key, vars = {}) {
     const dict = I18N[uiLang] || I18N.en;
     const fallback = I18N.en;
@@ -17,8 +32,7 @@ export function detectUiLang() {
         // ignore storage read failure and fallback to auto detection
     }
 
-    const autoLang = (document.documentElement.lang || navigator.language || '').toLowerCase();
-    return autoLang.startsWith('zh') ? 'zh' : 'en';
+    return detectAutoUiLang();
 }
 
 export function setUiLangPreference(lang) {