diff --git a/module_base/src/main/java/com/lukouguoji/module_base/ktx/EditTextKtx.kt b/module_base/src/main/java/com/lukouguoji/module_base/ktx/EditTextKtx.kt
index bbb0173..e4f5a3c 100644
--- a/module_base/src/main/java/com/lukouguoji/module_base/ktx/EditTextKtx.kt
+++ b/module_base/src/main/java/com/lukouguoji/module_base/ktx/EditTextKtx.kt
@@ -56,4 +56,43 @@ class UpperCaseAlphanumericInputFilter : InputFilter {
  */
 fun EditText.setUpperCaseAlphanumericFilter() {
     this.filters = arrayOf(UpperCaseAlphanumericInputFilter())
+}
+
+/**
+ * 大写字母输入过滤器
+ * 只允许输入大写字母(A-Z),小写字母自动转为大写
+ */
+class UpperCaseLetterInputFilter : InputFilter {
+    override fun filter(
+        source: CharSequence?,
+        start: Int,
+        end: Int,
+        dest: Spanned?,
+        dstart: Int,
+        dend: Int
+    ): CharSequence? {
+        if (source.isNullOrEmpty()) return null
+
+        val filtered = StringBuilder()
+        for (i in start until end) {
+            val char = source[i]
+            if (char in 'A'..'Z' || char in 'a'..'z') {
+                filtered.append(char.uppercaseChar())
+            }
+        }
+
+        return if (filtered.toString() == source.subSequence(start, end).toString()) {
+            null
+        } else {
+            filtered.toString()
+        }
+    }
+}
+
+/**
+ * 为 EditText 设置大写字母输入过滤器
+ * 使用方式: editText.setUpperCaseLetterFilter()
+ */
+fun EditText.setUpperCaseLetterFilter() {
+    this.filters = arrayOf(UpperCaseLetterInputFilter())
 }
\ No newline at end of file
diff --git a/module_gjj/src/main/java/com/lukouguoji/gjj/activity/IntImpQueryActivity.kt b/module_gjj/src/main/java/com/lukouguoji/gjj/activity/IntImpQueryActivity.kt
index 648579a..ecbc2bc 100644
--- a/module_gjj/src/main/java/com/lukouguoji/gjj/activity/IntImpQueryActivity.kt
+++ b/module_gjj/src/main/java/com/lukouguoji/gjj/activity/IntImpQueryActivity.kt
@@ -16,6 +16,8 @@ import com.lukouguoji.module_base.impl.FlowBus
 import com.lukouguoji.module_base.impl.observe
 import com.lukouguoji.module_base.ktx.addOnItemClickListener
 import com.lukouguoji.module_base.ktx.getLifecycleOwner
+import com.lukouguoji.module_base.ktx.setUpperCaseAlphanumericFilter
+import com.lukouguoji.module_base.ktx.setUpperCaseLetterFilter
 import com.lukouguoji.module_base.router.ARouterConstants
 
 /**
@@ -53,6 +55,11 @@ class IntImpQueryActivity :
             if (visible) showFilterPanel() else hideFilterPanel()
         }
 
+        // 航班号：大写字母+数字
+        binding.filterPanel.filterFlightNo.et.setUpperCaseAlphanumericFilter()
+        // 始发港：仅大写字母
+        binding.filterPanel.filterOrigin.et.setUpperCaseLetterFilter()
+
         viewModel.refresh()
     }
 
diff --git a/module_gjj/src/main/res/layout/layout_int_imp_query_filter.xml b/module_gjj/src/main/res/layout/layout_int_imp_query_filter.xml
index bd37a23..a1dafed 100644
--- a/module_gjj/src/main/res/layout/layout_int_imp_query_filter.xml
+++ b/module_gjj/src/main/res/layout/layout_int_imp_query_filter.xml
@@ -70,6 +70,7 @@
 
                 <!-- 航班号 -->
                 <com.lukouguoji.module_base.ui.weight.data.layout.PadDataLayoutNew
+                    android:id="@+id/filter_flight_no"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginBottom="10dp"
@@ -81,6 +82,7 @@
 
                 <!-- 始发港 -->
                 <com.lukouguoji.module_base.ui.weight.data.layout.PadDataLayoutNew
+                    android:id="@+id/filter_origin"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginBottom="10dp"