diff --git a/src/gui/water_quality_gui.py b/src/gui/water_quality_gui.py
index 22ab3dc..9df2e2a 100644
--- a/src/gui/water_quality_gui.py
+++ b/src/gui/water_quality_gui.py
@@ -1856,14 +1856,14 @@ class WaterQualityGUI(QMainWindow):
             ],
             "阶段三：模型构建与训练": [
                 ("step9", "9. 机器学习建模"),
-                ("step8_non_empirical_modeling", "8b. 回归模型训练"),
             ],
             "阶段四：预测与成果输出 ": [
                 ("step10", "10. 机器学习预测"),
-                ("step11", "11. 回归预测"),
-                ("step14", "12. 专题图生成"),
-                ("step9_viz", "13. 可视化分析"),
-                ("step_report", "14. 分析报告生成"),
+                ("step8_non_empirical_modeling", "11. 水色指数反演"),
+                ("step9_concentration", "12. 浓度反演"),
+                ("step14", "14. 专题图生成"),
+                ("step9_viz", "15. 可视化分析"),
+                ("step_report", "16. 分析报告生成"),
             ]
         }
         
@@ -1978,14 +1978,11 @@ class WaterQualityGUI(QMainWindow):
         self.step8_waterindex_panel = Step9WaterColorPanel()
         self.step_stack.addTab(self.create_scroll_area(self.step8_waterindex_panel), QIcon(self.get_icon_path("8.png")), "水色指数反演")
 
-        self.step9_concentration_panel = Step10ConcentrationPanel()
-        self.step_stack.addTab(self.create_scroll_area(self.step9_concentration_panel), QIcon(self.get_icon_path("9.png")), "浓度反演")
-
         self.step10_ml_panel = Step10MlPanel()
         self.step_stack.addTab(self.create_scroll_area(self.step10_ml_panel), QIcon(self.get_icon_path("10.png")), "机器学习预测")
 
-        self.step11_non_empirical_panel = Step11NonEmpiricalPanel()
-        self.step_stack.addTab(self.create_scroll_area(self.step11_non_empirical_panel), QIcon(self.get_icon_path("11.png")), "回归预测")
+        self.step9_concentration_panel = Step10ConcentrationPanel()
+        self.step_stack.addTab(self.create_scroll_area(self.step9_concentration_panel), QIcon(self.get_icon_path("9.png")), "浓度反演")
 
         self.step14_panel = Step14Panel()
         self.step_stack.addTab(self.create_scroll_area(self.step14_panel), QIcon(self.get_icon_path("10.png")), "专题图生成")
@@ -2142,13 +2139,12 @@ class WaterQualityGUI(QMainWindow):
             'step7': 6,
             'step8': 7,
             'step9': 8,
-            'step8_non_empirical_modeling': 9,
-            'step9_concentration': 10,
-            'step10': 11,
-            'step11': 12,
-            'step14': 13,
-            'step9_viz': 14,
-            'step_report': 15,
+            'step10': 9,
+            'step8_non_empirical_modeling': 10,
+            'step9_concentration': 11,
+            'step14': 12,
+            'step9_viz': 13,
+            'step_report': 14,
         }
         
         if item_data in step_id_to_tab:
@@ -2173,13 +2169,12 @@ class WaterQualityGUI(QMainWindow):
             6: 'step7',
             7: 'step8',
             8: 'step9',
-            9: 'step8_non_empirical_modeling',
-            10: 'step9_concentration',
-            11: 'step10',
-            12: 'step11',
-            13: 'step14',
-            14: 'step9_viz',
-            15: 'step_report',
+            9: 'step10',
+            10: 'step8_non_empirical_modeling',
+            11: 'step9_concentration',
+            12: 'step14',
+            13: 'step9_viz',
+            14: 'step_report',
         }
         
         if index not in tab_to_step_id:
@@ -2230,24 +2225,24 @@ class WaterQualityGUI(QMainWindow):
         elif index == 8:
             self.step9_panel.update_from_config(work_dir=self.work_dir, pipeline=self.pipeline)
 
-        # Step8b（水色指数反演）切换时自动填充光谱数据和输出路径
+        # Step10（机器学习预测）切换时自动填充采样光谱和模型目录
         elif index == 9:
-            self.step8_waterindex_panel.update_from_config(work_dir=self.work_dir, pipeline=self.pipeline)
-
-        # Step10（浓度反演）切换时自动填充 QAA 结果和输出路径
-        elif index == 10:
-            self.step9_concentration_panel.update_from_config(work_dir=self.work_dir, pipeline=self.pipeline)
-
-        # Step11（机器学习预测）切换时自动填充采样光谱和模型目录
-        elif index == 11:
             self.step10_ml_panel.update_from_config(work_dir=self.work_dir, pipeline=self.pipeline)
 
+        # Step11（水色指数反演）切换时自动填充光谱数据和输出路径
+        elif index == 10:
+            self.step8_waterindex_panel.update_from_config(work_dir=self.work_dir, pipeline=self.pipeline)
+
+        # Step12（浓度反演）切换时自动填充 QAA 结果和输出路径
+        elif index == 11:
+            self.step9_concentration_panel.update_from_config(work_dir=self.work_dir, pipeline=self.pipeline)
+
         # Step14（专题图生成）切换时自动填充预测结果目录
-        elif index == 13:
+        elif index == 12:
             self.step14_panel.update_from_config(work_dir=self.work_dir, pipeline=self.pipeline)
 
-        # 可视化分析面板切换时自动推断图像目录并加载目录树
-        elif index == 14:
+        # Step15（可视化分析）切换时自动推断图像目录并加载目录树
+        elif index == 13:
             self.viz_panel.update_from_config(work_dir=self.work_dir, pipeline=self.pipeline)
 
     def apply_stylesheet(self):
@@ -3236,8 +3231,8 @@ class WaterQualityGUI(QMainWindow):
         step_id_to_tab = {
             'step1': 0, 'step2': 1, 'step3': 2, 'step4': 3,
             'step5': 4, 'step6': 5, 'step7': 6, 'step8': 7,
-            'step9': 8, 'step8_non_empirical_modeling': 9, 'step9_concentration': 10,
-            'step10': 11, 'step11': 12, 'step14': 13, 'step9_viz': 14
+            'step9': 8, 'step10': 9, 'step8_non_empirical_modeling': 10,
+            'step9_concentration': 11, 'step14': 12, 'step9_viz': 13, 'step_report': 14
         }
 
         for step_id in disabled_step_ids: