Create a vertical 9:16 energetic street-food poster set at a lively late-night Chinese snack stall. The main subject is a clearly adult Chinese woman in her twenties with long straight black hair, smiling happily while enjoying a plate of spicy crawfish and holding a generic unbranded beer bottle. Use warm night-market lighting, glowing stall signs, shallow depth of field, glossy red crawfish in the foreground, casual dining atmosphere, and a spontaneous smartphone-advertising look. Add bold mustard-yellow Chinese brush lettering across the upper poster reading "趁年轻,激爽才够味!" with dynamic paint strokes and strong contrast against the dark night background. Keep the image celebratory, appetizing, youthful in energy, and clearly adult in subject. Avoid underage-looking subjects, real alcohol brand logos, copied bottle labels, official endorsements, irresponsible drinking cues, intoxication, private information, extra watermarks, unreadable headline text, distorted hands or faces, unappetizing food texture, and low-resolution artifacts.