界面优化

src/gui/panels/report_generation_panel.py

@@ -195,13 +195,23 @@ class ReportGenerationPanel(QWidget):
             self.text_model_edit.setText(self.vision_model_edit.text())
             self.text_model_edit.blockSignals(False)
 
+    def _get_default_work_dir(self):
+        """获取 work_dir，优先用主窗口缓存的 work_dir"""
+        if self.main_window and hasattr(self.main_window, 'work_dir') and self.main_window.work_dir:
+            return str(self.main_window.work_dir)
+        return ""
+
     def browse_work_dir(self):
-        d = QFileDialog.getExistingDirectory(self, "选择工作目录")
+        default = self._get_default_work_dir()
+        d = QFileDialog.getExistingDirectory(self, "选择工作目录", default)
         if d:
             self.work_dir_edit.setText(d)
 
     def browse_output_dir(self):
-        d = QFileDialog.getExistingDirectory(self, "选择报告输出目录")
+        default = self._get_default_work_dir()
+        if default:
+            default = os.path.join(default, "14_visualization")
+        d = QFileDialog.getExistingDirectory(self, "选择报告输出目录", default)
         if d:
             self.output_dir_edit.setText(d)