diff --git a/B07_DesignDetail/openwebcad/src/drawControllers/screenCanvas.drawController.ts b/B07_DesignDetail/openwebcad/src/drawControllers/screenCanvas.drawController.ts
index 0d2032d7..d72c03eb 100644
--- a/B07_DesignDetail/openwebcad/src/drawControllers/screenCanvas.drawController.ts
+++ b/B07_DesignDetail/openwebcad/src/drawControllers/screenCanvas.drawController.ts
@@ -69,7 +69,6 @@ export class ScreenCanvasDrawController implements DrawController {
 	}
 
 	public setScreenScale(newScreenScale: number) {
-		console.log(`set screen scale: ${newScreenScale}`);
 		this.screenScale = newScreenScale;
 		triggerReactUpdate(StateVariable.screenZoom);
 	}
diff --git a/B07_DesignDetail/openwebcad/src/inputController/input-controller.ts b/B07_DesignDetail/openwebcad/src/inputController/input-controller.ts
index f5c8de0a..4f1c37af 100644
--- a/B07_DesignDetail/openwebcad/src/inputController/input-controller.ts
+++ b/B07_DesignDetail/openwebcad/src/inputController/input-controller.ts
@@ -238,7 +238,8 @@ export class InputController {
 		const strength = Math.min(1, Math.max(0.12, Math.abs(evt.deltaY) / notch));
 		// Aislo: wheel direction is inverted on purpose - pulling the wheel zooms in, pushing
 		// zooms out, matching the B04/B05 maps and the B06 cross sections (2026-08-02).
-		drawController.zoomScreen(-evt.deltaY, strength);
+		// 다만 트랙패드 핀치(ctrl+휠)는 OS 관행대로 — 손가락을 벌리면 커진다.
+		drawController.zoomScreen(evt.ctrlKey ? evt.deltaY : -evt.deltaY, strength);
 	}
 
 	public handleMouseDown(evt: MouseEvent) {