优化UI分组框标题名称

gateway_config.py

@@ -193,7 +193,7 @@ class GatewayConfigTool(QMainWindow):
         info_grid.addWidget(self.label_cur_lora_fc, row, 1)
 
         # Eth参数（紧凑两列）
-        eth_info_group = QGroupBox("ETH / Cat1网络参数")
+        eth_info_group = QGroupBox("ETH网络参数")
         eth_info_grid = QGridLayout(eth_info_group)
         eth_info_grid.setSpacing(4)
 
@@ -256,7 +256,7 @@ class GatewayConfigTool(QMainWindow):
         config_layout.addWidget(misc_group)
 
         # Eth参数（紧凑两列）
-        eth_group = QGroupBox("ETH参数（需先切换到eth模式）")
+        eth_group = QGroupBox("ETH参数配置（需先切换到eth模式）")
         eth_grid = QGridLayout(eth_group)
         eth_grid.setSpacing(4)
 
@@ -321,7 +321,7 @@ class GatewayConfigTool(QMainWindow):
 
         lora_layout.addWidget(QLabel("信道:"))
         self.combo_lora_fc = QComboBox()
-        self.combo_lora_fc.setSizeAdjustPolicy(QComboBox.AdjustToMinimumContentsLengthWithIcon)
+        self.combo_lora_fc.setFixedWidth(200)
         lora_freqs = []
         fc_hz = 410100000
         ch_idx = 1
@@ -332,9 +332,12 @@ class GatewayConfigTool(QMainWindow):
             ch_idx += 1
         for freq, desc in lora_freqs:
             self.combo_lora_fc.addItem(desc, freq)
-        self.combo_lora_fc.view().setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn)
-        self.combo_lora_fc.view().setMinimumHeight(200)
-        lora_layout.addWidget(self.combo_lora_fc, 1)
+        self.combo_lora_fc.setMaxVisibleItems(20)
+        self.combo_lora_fc.setStyleSheet(
+            "QComboBox { combobox-popup: 0; }"
+            "QComboBox QAbstractItemView { max-height: 500px; }"
+        )
+        lora_layout.addWidget(self.combo_lora_fc)
 
         self.btn_lora_fc = QPushButton("发送")
         self.btn_lora_fc.setFixedWidth(60)
@@ -342,6 +345,8 @@ class GatewayConfigTool(QMainWindow):
         self.btn_lora_fc.clicked.connect(self.on_lora_send)
         lora_layout.addWidget(self.btn_lora_fc)
 
+        lora_layout.addStretch()
+
         config_layout.addWidget(lora_group)
 
         # -- 下方：日志区 + 自定义指令 --