diff --git a/src/core/handlers/__init__.py b/src/core/handlers/__init__.py
index 0e9d3d6..fe2a70d 100644
--- a/src/core/handlers/__init__.py
+++ b/src/core/handlers/__init__.py
@@ -12,9 +12,21 @@
 
 from src.core.handlers.base import BaseStepHandler, PipelineContext
 from src.core.handlers.step1_water_mask import Step1WaterMaskHandler
+from src.core.handlers.step2_glint_detection import Step2GlintDetectionHandler
+from src.core.handlers.step3_glint_removal import Step3GlintRemovalHandler
+from src.core.handlers.step4_sampling import Step4SamplingHandler
+from src.core.handlers.step5_process_csv import Step5ProcessCsvHandler
+from src.core.handlers.step6_extract_spectra import Step6ExtractSpectraHandler
+from src.core.handlers.step7_calc_indices import Step7CalcIndicesHandler
 
 __all__ = [
     'BaseStepHandler',
     'PipelineContext',
     'Step1WaterMaskHandler',
+    'Step2GlintDetectionHandler',
+    'Step3GlintRemovalHandler',
+    'Step4SamplingHandler',
+    'Step5ProcessCsvHandler',
+    'Step6ExtractSpectraHandler',
+    'Step7CalcIndicesHandler',
 ]
diff --git a/src/core/handlers/register_handlers.py b/src/core/handlers/register_handlers.py
new file mode 100644
index 0000000..2793648
--- /dev/null
+++ b/src/core/handlers/register_handlers.py
@@ -0,0 +1,43 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+Handler 注册辅助函数
+
+将所有步骤 Handler 一次性注册到 PipelineScheduler。
+新增步骤只需在此函数中加一行 register_handler() 调用。
+"""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from src.core.handlers.step1_water_mask import Step1WaterMaskHandler
+from src.core.handlers.step2_glint_detection import Step2GlintDetectionHandler
+from src.core.handlers.step3_glint_removal import Step3GlintRemovalHandler
+from src.core.handlers.step4_sampling import Step4SamplingHandler
+from src.core.handlers.step5_process_csv import Step5ProcessCsvHandler
+from src.core.handlers.step6_extract_spectra import Step6ExtractSpectraHandler
+from src.core.handlers.step7_calc_indices import Step7CalcIndicesHandler
+
+if TYPE_CHECKING:
+    from src.core.handlers.pipeline_scheduler import PipelineScheduler
+
+
+def register_all_handlers(scheduler: PipelineScheduler):
+    """将所有已实现的步骤 Handler 注册到调度器。
+
+    用法::
+
+        scheduler = PipelineScheduler(work_dir="./work_dir")
+        register_all_handlers(scheduler)
+        result = scheduler.run_full_pipeline(config)
+
+    新增步骤时，在此函数中追加一行 register_handler() 即可。
+    """
+    scheduler.register_handler(Step1WaterMaskHandler())
+    scheduler.register_handler(Step2GlintDetectionHandler())
+    scheduler.register_handler(Step3GlintRemovalHandler())
+    scheduler.register_handler(Step4SamplingHandler())
+    scheduler.register_handler(Step5ProcessCsvHandler())
+    scheduler.register_handler(Step6ExtractSpectraHandler())
+    scheduler.register_handler(Step7CalcIndicesHandler())
diff --git a/src/core/handlers/step2_glint_detection.py b/src/core/handlers/step2_glint_detection.py
new file mode 100644
index 0000000..5745c47
--- /dev/null
+++ b/src/core/handlers/step2_glint_detection.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+Step2 处理器：耀斑区域检测
+
+将原 WaterQualityInversionPipeline.step2_find_glint_area() 方法
+剥离为独立的 Step2GlintDetectionHandler。
+"""
+
+import time
+from typing import Any, Dict
+
+from src.core.handlers.base import BaseStepHandler, PipelineContext
+from src.core.steps.glint_detection_step import GlintDetectionStep
+
+
+class Step2GlintDetectionHandler(BaseStepHandler):
+    """步骤2：耀斑区域检测。
+
+    对应 config key: 'step2'
+    委托类: GlintDetectionStep.run()
+    """
+
+    step_key = 'step2'
+
+    def execute(self, context: PipelineContext, config: dict) -> Dict[str, Any]:
+        step_start_time = time.time()
+
+        water_mask_path = self._resolve_path(
+            config.get('water_mask_path'), context.water_mask_path, 'water_mask'
+        )
+
+        try:
+            result = GlintDetectionStep.run(
+                img_path=config.get('img_path'),
+                glint_wave=config.get('glint_wave', 750.0),
+                method=config.get('method', 'otsu'),
+                z_threshold=config.get('z_threshold', 2.5),
+                percentile=config.get('percentile', 95.0),
+                iqr_multiplier=config.get('iqr_multiplier', 1.5),
+                window_size=config.get('window_size', 15),
+                multi_band_waves=config.get('multi_band_waves'),
+                sub_method=config.get('sub_method', 'zscore'),
+                weights=config.get('weights'),
+                max_area=config.get('max_area'),
+                buffer_size=config.get('buffer_size'),
+                water_mask_path=water_mask_path,
+                glint_dir=str(context.glint_dir),
+                callback=context.notify,
+            )
+
+            context.glint_mask_path = result
+
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤2: 耀斑区域检测", step_start_time, step_end_time
+            )
+
+            return {'glint_mask_path': result}
+
+        except Exception as e:
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤2: 耀斑区域检测", step_start_time, step_end_time,
+                status="failed", error=str(e)
+            )
+            raise
diff --git a/src/core/handlers/step3_glint_removal.py b/src/core/handlers/step3_glint_removal.py
new file mode 100644
index 0000000..b8daaae
--- /dev/null
+++ b/src/core/handlers/step3_glint_removal.py
@@ -0,0 +1,85 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+Step3 处理器：耀斑去除
+
+将原 WaterQualityInversionPipeline.step3_remove_glint() 方法
+剥离为独立的 Step3GlintRemovalHandler。
+"""
+
+import time
+from typing import Any, Dict
+
+from src.core.handlers.base import BaseStepHandler, PipelineContext
+from src.core.steps.glint_removal_step import GlintRemovalStep
+
+
+class Step3GlintRemovalHandler(BaseStepHandler):
+    """步骤3：耀斑去除。
+
+    对应 config key: 'step3'
+    委托类: GlintRemovalStep.run()
+    """
+
+    step_key = 'step3'
+
+    def execute(self, context: PipelineContext, config: dict) -> Dict[str, Any]:
+        step_start_time = time.time()
+
+        water_mask_path = self._resolve_path(
+            config.get('water_mask_path'), context.water_mask_path, 'water_mask'
+        )
+
+        try:
+            result = GlintRemovalStep.run(
+                img_path=config.get('img_path'),
+                method=config.get('method', 'subtract_nir'),
+                start_wave=config.get('start_wave'),
+                end_wave=config.get('end_wave'),
+                json_path=config.get('json_path'),
+                left_shoulder_wave=config.get('left_shoulder_wave'),
+                valley_wave=config.get('valley_wave'),
+                right_shoulder_wave=config.get('right_shoulder_wave'),
+                water_mask=water_mask_path,
+                interpolate_zeros=config.get('interpolate_zeros', False),
+                interpolation_method=config.get('interpolation_method', 'nearest'),
+                enabled=config.get('enabled', True),
+                kutser_shp_path=config.get('kutser_shp_path'),
+                oxy_band=config.get('oxy_band', 38),
+                lower_oxy=config.get('lower_oxy', 36),
+                upper_oxy=config.get('upper_oxy', 49),
+                nir_band=config.get('nir_band', 47),
+                nir_lower=config.get('nir_lower', 25),
+                nir_upper=config.get('nir_upper', 37),
+                goodman_A=config.get('goodman_A', 0.000019),
+                goodman_B=config.get('goodman_B', 0.1),
+                hedley_shp_path=config.get('hedley_shp_path'),
+                hedley_nir_band=config.get('hedley_nir_band', 47),
+                sugar_bounds=config.get('sugar_bounds'),
+                sugar_sigma=config.get('sugar_sigma', 1.0),
+                sugar_estimate_background=config.get('sugar_estimate_background', True),
+                sugar_glint_mask_method=config.get('sugar_glint_mask_method', 'cdf'),
+                sugar_iter=config.get('sugar_iter', 3),
+                sugar_termination_thresh=config.get('sugar_termination_thresh', 20.0),
+                deglint_dir=str(context.deglint_dir),
+                water_mask_dir=str(context.water_mask_dir),
+                callback=context.notify,
+                output_path=config.get('output_path'),
+            )
+
+            context.deglint_img_path = result
+
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤3: 耀斑去除", step_start_time, step_end_time
+            )
+
+            return {'deglint_img_path': result}
+
+        except Exception as e:
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤3: 耀斑去除", step_start_time, step_end_time,
+                status="failed", error=str(e)
+            )
+            raise
diff --git a/src/core/handlers/step4_sampling.py b/src/core/handlers/step4_sampling.py
new file mode 100644
index 0000000..9a3834c
--- /dev/null
+++ b/src/core/handlers/step4_sampling.py
@@ -0,0 +1,64 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+Step4 处理器：预测采样点生成
+
+将原 WaterQualityInversionPipeline.step4_sampling() 方法
+剥离为独立的 Step4SamplingHandler。
+"""
+
+import time
+from typing import Any, Dict
+
+from src.core.handlers.base import BaseStepHandler, PipelineContext
+from src.core.steps.prediction_step import PredictionStep
+
+
+class Step4SamplingHandler(BaseStepHandler):
+    """步骤4：生成预测采样点并提取光谱。
+
+    对应 config key: 'step4_sampling'
+    委托类: PredictionStep.generate_sampling_points()
+    """
+
+    step_key = 'step4_sampling'
+
+    def execute(self, context: PipelineContext, config: dict) -> Dict[str, Any]:
+        step_start_time = time.time()
+
+        deglint_img_path = self._resolve_path(
+            config.get('deglint_img_path'), context.deglint_img_path, 'deglint_img'
+        )
+        water_mask_path = self._resolve_path(
+            config.get('water_mask_path'), context.water_mask_path, 'water_mask'
+        )
+        glint_mask_path = self._resolve_path(
+            config.get('glint_mask_path'), context.glint_mask_path, 'glint_mask'
+        )
+
+        try:
+            result = PredictionStep.generate_sampling_points(
+                deglint_img_path=deglint_img_path,
+                interval=config.get('interval', 50),
+                sample_radius=config.get('sample_radius', 5),
+                chunk_size=config.get('chunk_size', 1000),
+                water_mask_path=water_mask_path,
+                glint_mask_path=glint_mask_path,
+                output_dir=str(context.sampling_dir),
+                use_adaptive_sampling=config.get('use_adaptive_sampling', True),
+            )
+
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤4: 生成预测采样点", step_start_time, step_end_time
+            )
+
+            return {'sampling_csv_path': result}
+
+        except Exception as e:
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤4: 生成预测采样点", step_start_time, step_end_time,
+                status="failed", error=str(e)
+            )
+            raise
diff --git a/src/core/handlers/step5_process_csv.py b/src/core/handlers/step5_process_csv.py
new file mode 100644
index 0000000..233613a
--- /dev/null
+++ b/src/core/handlers/step5_process_csv.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+Step5 处理器：CSV 数据处理
+
+将原 WaterQualityInversionPipeline.step5_process_csv() 方法
+剥离为独立的 Step5ProcessCsvHandler。
+"""
+
+import time
+from typing import Any, Dict
+
+from src.core.handlers.base import BaseStepHandler, PipelineContext
+from src.core.steps.data_preparation_step import DataPreparationStep
+
+
+class Step5ProcessCsvHandler(BaseStepHandler):
+    """步骤5：处理 CSV 文件，筛选剔除异常值。
+
+    对应 config key: 'step5_clean'
+    委托类: DataPreparationStep.process_csv()
+    """
+
+    step_key = 'step5_clean'
+
+    def execute(self, context: PipelineContext, config: dict) -> Dict[str, Any]:
+        step_start_time = time.time()
+
+        try:
+            result = DataPreparationStep.process_csv(
+                csv_path=config.get('csv_path'),
+                output_dir=str(context.processed_data_dir),
+            )
+
+            context.processed_csv_path = result
+
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤5: 处理CSV文件", step_start_time, step_end_time
+            )
+
+            return {'processed_csv_path': result}
+
+        except Exception as e:
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤5: 处理CSV文件", step_start_time, step_end_time,
+                status="failed", error=str(e)
+            )
+            raise
diff --git a/src/core/handlers/step6_extract_spectra.py b/src/core/handlers/step6_extract_spectra.py
new file mode 100644
index 0000000..ee53208
--- /dev/null
+++ b/src/core/handlers/step6_extract_spectra.py
@@ -0,0 +1,66 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+Step6 处理器：训练样本点光谱提取
+
+将原 WaterQualityInversionPipeline.step6_extract_spectra() 方法
+剥离为独立的 Step6ExtractSpectraHandler。
+"""
+
+import time
+from typing import Any, Dict
+
+from src.core.handlers.base import BaseStepHandler, PipelineContext
+from src.core.steps.data_preparation_step import DataPreparationStep
+
+
+class Step6ExtractSpectraHandler(BaseStepHandler):
+    """步骤6：根据采样点坐标在去耀斑影像中提取平均光谱。
+
+    对应 config key: 'step6_feature'
+    委托类: DataPreparationStep.extract_training_spectra()
+    """
+
+    step_key = 'step6_feature'
+
+    def execute(self, context: PipelineContext, config: dict) -> Dict[str, Any]:
+        step_start_time = time.time()
+
+        deglint_img_path = self._resolve_path(
+            config.get('deglint_img_path'), context.deglint_img_path, 'deglint_img'
+        )
+        csv_path = self._resolve_path(
+            config.get('csv_path'), context.processed_csv_path, 'csv'
+        )
+        glint_mask_path = self._resolve_path(
+            config.get('glint_mask_path'), context.glint_mask_path, 'glint_mask'
+        )
+
+        try:
+            result = DataPreparationStep.extract_training_spectra(
+                deglint_img_path=deglint_img_path,
+                radius=config.get('radius', 5),
+                source_epsg=config.get('source_epsg', 4326),
+                csv_path=csv_path,
+                boundary_path=config.get('boundary_path'),
+                glint_mask_path=glint_mask_path,
+                water_mask_path=context.water_mask_path,
+                output_dir=str(context.training_spectra_dir),
+            )
+
+            context.training_csv_path = result
+
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤6: 提取训练样本点光谱", step_start_time, step_end_time
+            )
+
+            return {'training_csv_path': result}
+
+        except Exception as e:
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤6: 提取训练样本点光谱", step_start_time, step_end_time,
+                status="failed", error=str(e)
+            )
+            raise
diff --git a/src/core/handlers/step7_calc_indices.py b/src/core/handlers/step7_calc_indices.py
new file mode 100644
index 0000000..cf1ddd7
--- /dev/null
+++ b/src/core/handlers/step7_calc_indices.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+Step7 处理器：水质光谱指数计算
+
+将原 WaterQualityInversionPipeline.step7_calc_indices() 方法
+剥离为独立的 Step7CalcIndicesHandler。
+"""
+
+import time
+from typing import Any, Dict
+
+from src.core.handlers.base import BaseStepHandler, PipelineContext
+from src.core.steps.data_preparation_step import DataPreparationStep
+
+
+class Step7CalcIndicesHandler(BaseStepHandler):
+    """步骤7：根据训练光谱计算水质光谱指数。
+
+    对应 config key: 'step7_index'
+    委托类: DataPreparationStep.calculate_water_quality_indices()
+    """
+
+    step_key = 'step7_index'
+
+    def execute(self, context: PipelineContext, config: dict) -> Dict[str, Any]:
+        step_start_time = time.time()
+
+        training_csv_path = self._resolve_path(
+            config.get('training_csv_path'), context.training_csv_path, 'training_csv'
+        )
+
+        try:
+            result = DataPreparationStep.calculate_water_quality_indices(
+                training_csv_path=training_csv_path,
+                formula_csv_file=config.get('formula_csv_file'),
+                formula_names=config.get('formula_names'),
+                output_file=config.get('output_file'),
+                enabled=config.get('enabled', True),
+                output_dir=str(context.indices_dir),
+            )
+
+            context.indices_path = result
+
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤7: 计算水质光谱指数", step_start_time, step_end_time
+            )
+
+            return {'indices_path': result}
+
+        except Exception as e:
+            step_end_time = time.time()
+            context.record_step_time(
+                "步骤7: 计算水质光谱指数", step_start_time, step_end_time,
+                status="failed", error=str(e)
+            )
+            raise
diff --git a/src/gui/core/worker_thread.py b/src/gui/core/worker_thread.py
index b8c30f2..62da5b7 100644
--- a/src/gui/core/worker_thread.py
+++ b/src/gui/core/worker_thread.py
@@ -6,8 +6,9 @@ import os
 import traceback
 from typing import Dict, List
 from PyQt5.QtCore import QThread, pyqtSignal
-from src.core.pipeline.runner import PipelineRunner, PipelineHalt
-from src.core.pipeline.context import PipelineContext
+from src.core.pipeline.runner import PipelineHalt
+from src.core.handlers.pipeline_scheduler import PipelineScheduler
+from src.core.handlers.register_handlers import register_all_handlers
 
 
 # =============================================================================
@@ -113,9 +114,10 @@ PIPELINE_ERROR_INFO = []
 
 try:
     error_info = diagnose_pipeline_import_error()
-    from src.core.water_quality_inversion_pipeline_GUI import WaterQualityInversionPipeline
+    from src.core.handlers.pipeline_scheduler import PipelineScheduler
+    from src.core.handlers.register_handlers import register_all_handlers
     PIPELINE_AVAILABLE = True
-    print("[OK] 成功导入pipeline模块")
+    print("[OK] 成功导入 Handler 调度器模块")
     PIPELINE_ERROR_INFO = error_info
 
 except ImportError as e:
@@ -140,12 +142,11 @@ except ImportError as e:
         print("   2. 如果需要修复，可以在.spec文件中添加unittest模块:")
         print("      a = Analysis(..., hiddenimports=['unittest', 'unittest.mock'])")
         print("   3. 或在PyInstaller命令中添加: --hidden-import unittest")
-    elif "water_quality_inversion_pipeline_GUI" in str(e):
+    elif "handlers" in str(e) or "pipeline_scheduler" in str(e):
         print("[INFO] 可能的解决方案:")
-        print("   1. 检查src/core/water_quality_inversion_pipeline_GUI.py文件是否存在")
-        print("   2. 确保Python路径设置正确")
+        print("   1. 检查 src/core/handlers/ 目录是否存在")
+        print("   2. 确保 Python 路径设置正确")
         print("   3. 尝试重新安装依赖: pip install -r requirements.txt")
-        print("   4. 检查Python版本是否兼容（推荐Python 3.8-3.11）")
 
     import traceback
     print("\n完整错误追踪:")
@@ -257,35 +258,32 @@ class WorkerThread(QThread):
         except Exception:
             mpl_prev = None
         try:
-            from src.core.water_quality_inversion_pipeline_GUI import WaterQualityInversionPipeline
-
-            self.pipeline = WaterQualityInversionPipeline(work_dir=self.work_dir)
+            # ── 新架构：PipelineScheduler + Handler 注册表 ──
+            scheduler = PipelineScheduler(work_dir=self.work_dir)
+            scheduler.set_callback(self.pipeline_callback)
+            register_all_handlers(scheduler)
+            self.pipeline = scheduler  # 保持兼容（stop() 等引用 self.pipeline）
 
             if self.mode == 'full':
-                self.log_message.emit("开始运行完整流程 (Runner 调度模式)...", "info")
-                if hasattr(self.pipeline, 'set_callback'):
-                    self.pipeline.set_callback(self.pipeline_callback)
+                self.log_message.emit("开始运行完整流程 (Handler 调度模式)...", "info")
 
                 # ── ★ 预检已由 GUI 层 perform_preflight() 完成，此处不再重复预检 ──
 
-                # 构造上下文 (Ctx)，将 config 整体注入 user_config
-                ctx = PipelineContext(
-                    img_path=self.config.get('step1', {}).get('img_path'),
-                    water_mask_path=self.config.get('step1', {}).get('mask_path'),
-                    csv_path=self.config.get('step4_sampling', {}).get('csv_path'),
-                    boundary_path=self.config.get('step5_clean', {}).get('boundary_path'),
-                    boundary_shp_path=self.config.get('step11_map', {}).get('boundary_shp_path'),
-                    formula_csv_path=self.config.get('step8_non_empirical_modeling', {}).get('formula_csv_path'),
-                    work_dir=self.work_dir,
-                    user_config=self.config
-                )
+                # 过滤 skip_list 中的步骤
+                active_config = {
+                    k: v for k, v in self.config.items()
+                    if k not in self.skip_list
+                }
 
-                # 启动新调度器
-                runner = PipelineRunner(self.pipeline)
-                result_ctx = runner.run(ctx, config=self.config, skip_list=self.skip_list)
+                result = scheduler.run_full_pipeline(active_config)
 
-                if result_ctx.last_error:
-                    raise RuntimeError(f"流水线执行失败: {result_ctx.last_error}")
+                errors = result.get('errors', {})
+                if errors:
+                    error_lines = [f"  {k}: {v}" for k, v in errors.items()]
+                    raise RuntimeError(
+                        f"流水线部分步骤执行失败 ({len(errors)} 个):\n"
+                        + "\n".join(error_lines)
+                    )
 
                 self.progress_update.emit(100, "流程执行完成")
                 self.finished.emit(True, "完整流程执行成功！")
@@ -293,10 +291,7 @@ class WorkerThread(QThread):
                 self.log_message.emit(f"开始独立运行步骤: {self.step_name}", "info")
                 self.progress_update.emit(0, f"正在执行: {self.step_name}")
 
-                if hasattr(self.pipeline, 'set_callback'):
-                    self.pipeline.set_callback(self.pipeline_callback)
-
-                self.run_single_step(self.step_name, self.config)
+                self.run_single_step(scheduler, self.step_name, self.config)
 
                 self.progress_update.emit(100, f"步骤 {self.step_name} 执行完成")
                 self.finished.emit(True, f"步骤 {self.step_name} 独立运行成功！")
@@ -317,56 +312,24 @@ class WorkerThread(QThread):
                 except Exception:
                     pass
 
-    def run_single_step(self, step_name, config):
-        """运行单个步骤"""
-        step_method_map = {
-            'step1': 'step1_generate_water_mask',
-            'step2': 'step2_find_glint_area',
-            'step3': 'step3_remove_glint',
-            'step4_sampling': 'step4_sampling',
-            'step5_clean': 'step5_process_csv',
-            'step6_feature': 'step6_extract_spectra',
-            'step7_index': 'step7_calc_indices',
-            'step8_ml_train': 'step8_train_ml',
-            'step8_non_empirical_modeling': 'step8_non_empirical_modeling',
-            'step8_qaa': 'step8_qaa_inversion',
-            'step9_ml_predict': 'step9_predict_ml',
-            'step10_watercolor': 'step9_watercolor_inversion',
-            'step11_map': 'step10_map',
-        }
-
-        if step_name not in step_method_map:
-            raise ValueError(f"未知的步骤名称: {step_name}")
-
-        method_name = step_method_map[step_name]
+    def run_single_step(self, scheduler, step_name, config):
+        """使用新调度器运行单个步骤。"""
         step_config = dict(config.get(step_name, {}))
 
-        # step8_qaa_inversion 内部使用 config.get('step8_qaa', {}) 读取内层，
-        # 必须透传完整 config dict（含外层 step_name key）
-        if step_name == 'step8_qaa':
-            method = getattr(self.pipeline, method_name)
-            result = method(**config)
-            return result
-
-        # 透传面板顶层传入的外部预训练模型（GUI step11_prediction_panel 通过 config['_external_model'] 传入）
-        # 非空才覆盖（遵循 feedback_never_overwrite_with_empty 原则）
+        # 透传外部预训练模型（非空才覆盖）
         for key in ('_external_model', '_external_model_path',
                     '_external_models_dict', '_external_model_dir'):
             val = config.get(key)
             if val is not None and val != "":
                 step_config[key] = val
-                if key == '_external_models_dict':
-                    print(f"[Worker] 提取到的外部字典 Keys: {list(val.keys())}")
-                else:
-                    print(f"[Worker] 透传 {key}: {val}")
 
         step_config['skip_dependency_check'] = True
 
-        if step_name in ['step2', 'step3', 'step4_sampling', 'step5_clean', 'step7_index', 'step9_ml_predict']:
-            step_config.pop('output_path', None)
-
-        method = getattr(self.pipeline, method_name)
-        result = method(**step_config)
+        # step8_qaa 特殊处理：透传完整 config（含外层 step8_qaa key）
+        if step_name == 'step8_qaa':
+            result = scheduler.run_step(step_name, config)
+        else:
+            result = scheduler.run_step(step_name, step_config)
 
         return result