diff --git a/app/src/main/java/com/example/lzwcai_terminal_temi/HttpManager.kt b/app/src/main/java/com/example/lzwcai_terminal_temi/HttpManager.kt
index 995e2e7..320a2a6 100644
--- a/app/src/main/java/com/example/lzwcai_terminal_temi/HttpManager.kt
+++ b/app/src/main/java/com/example/lzwcai_terminal_temi/HttpManager.kt
@@ -29,7 +29,17 @@ object HttpManager {
     fun getBaseUrl(context: Context): String {
         val prefs = context.getSharedPreferences("app_prefs", Context.MODE_PRIVATE)
         val saved = prefs.getString(PREF_KEY_BASE_URL, "").orEmpty().trim()
-        return saved.trimEnd('/')
+        if (saved.isEmpty()) {
+            return ""
+        }
+        val normalized = if (saved.startsWith("http://", ignoreCase = true) ||
+            saved.startsWith("https://", ignoreCase = true)
+        ) {
+            saved
+        } else {
+            "http://$saved"
+        }
+        return normalized.trimEnd('/')
     }
 
     suspend fun login(context: Context): String? = withContext(Dispatchers.IO) {