Wide-angle interior shot of a spacious, sunlit university lecture hall with rows of wooden desks. A massive arched window fills the back wall, revealing snow-capped mountains and a winding river. Warm natural light streams in, illuminating the room and desks. A young female teacher stands gracefully in the center, dressed in a stylish white blouse and tailored pencil skirt. She holds a folder in her left hand. Her appearance is professional, elegant, and fit. To the side, a whiteboard and a felt pin-up board for posters and slides are visible. The atmosphere is bright, academic, and serene. Cinematic lighting, high detail, 8k resolution.