diff --git a/pages/login/login.vue b/pages/login/login.vue
index f2d09f1..691db1b 100644
--- a/pages/login/login.vue
+++ b/pages/login/login.vue
@@ -86,7 +86,27 @@
 	};
 
 	onMounted(async () => {
+		const urlIdentifier = getPathDeviceId();
 		const token = uni.getStorageSync('token');
+		const storedIdentifier = uni.getStorageSync('identifier') || '';
+
+		// 从外部链接进入时，链接中的资产标识优先于本地登录态。
+		// 只有相同资产才能复用已登录的会话，避免将上一台设备的数据带到新链接中。
+		if (urlIdentifier) {
+			identifier.value = urlIdentifier;
+			if (token && urlIdentifier === storedIdentifier) {
+				uni.reLaunch({ url: '/pages/index/index' });
+				return;
+			}
+
+			if (token || storedIdentifier) {
+				userStore.clearUser();
+			}
+
+			doLogin();
+			return;
+		}
+
 		if (token) {
 			uni.reLaunch({ url: '/pages/index/index' });
 			return;
@@ -94,7 +114,6 @@
 
 		showPostBindReloginNotice();
 		handleWechatCallback();
-		getPathDeviceId();
 
 		// 初始化微信 SDK (仅在微信浏览器内执行)
 		// #ifdef H5
@@ -236,11 +255,7 @@
 
 	const getPathDeviceId = () => {
 		const params = new URLSearchParams(window.location.search);
-		const idf = params.get('identifier');
-		if (idf) {
-			identifier.value = idf;
-			handleLogin();
-		}
+		return (params.get('identifier') || '').trim();
 	};
 
 	const doLogin = async () => {
diff --git a/store/user.js b/store/user.js
index 9ddd223..7a144c6 100644
--- a/store/user.js
+++ b/store/user.js
@@ -43,6 +43,9 @@ export const useUserStore = () => {
 	const clearUser = () => {
 		state.token = '';
 		state.assetToken = '';
+		state.identifier = '';
+		state.isDevice = false;
+		state.realNameStatus = 0;
 		state.userInfo = { avatar: '', nickname: '' };
 		uni.removeStorageSync('token');
 		uni.removeStorageSync('identifier');
@@ -59,4 +62,4 @@ export const useUserStore = () => {
 		setUserInfo,
 		clearUser
 	};
-};
\ No newline at end of file
+};