简约风绿色出行宣传插画素材

Soft light blue and cream environmental poster promoting green mobility. Minimalist composition of a bicycle silhouette, a pedestrian, and a bus icon in pale charcoal gray. No photorealistic people. Matte paper finish, subtle grain to remove AI slickness. Large Chinese title "慢一点，快得多" centered. Below it, short facts comparing car vs bus emissions. Very airy negative space. Bottom right: QR code area with light gray square pattern and text "扫码领取骑行券". The design should feel like a practical municipal campaign print, not overly artistic but clear and sincere. Aspect ratio 2:3.