fix: re-expand advanced settings panel if parameter inputs not visible

Author: maebahesioru

src/browser/page_controller.py

@@ -596,7 +596,12 @@ def extract_float(s):
                 await self._check_disconnect(check_client_disconnected, f'设置 {param_name} - 尝试 {attempt + 1}')
 
                 if attempt == 0:
-                    await expect_async(locator).to_be_visible(timeout=5000)
+                    try:
+                        await expect_async(locator).to_be_visible(timeout=5000)
+                    except Exception:
+                        # Panel might be collapsed - try to expand and retry visibility
+                        await self._ensure_advanced_settings_expanded(check_client_disconnected)
+                        await expect_async(locator).to_be_visible(timeout=5000)
                     await asyncio.sleep(DELAY_AFTER_TOGGLE)
 
                 if attempt == 0:
@@ -715,7 +720,11 @@ async def _adjust_stop_sequences(self, stop_sequences, page_params_cache: dict,
                 except Exception:
                     break
             if normalized_requested_stops:
-                await expect_async(stop_input_locator).to_be_visible(timeout=5000)
+                try:
+                    await expect_async(stop_input_locator).to_be_visible(timeout=5000)
+                except Exception:
+                    await self._ensure_advanced_settings_expanded(check_client_disconnected)
+                    await expect_async(stop_input_locator).to_be_visible(timeout=5000)
                 await stop_input_locator.scroll_into_view_if_needed(timeout=3000)
                 for seq in normalized_requested_stops:
                     await stop_input_locator.click(timeout=3000)