碳足迹碳中和脚印绿叶节能环保宣传海报

A minimalist infographic-style environmental poster. Very light blue-gray background with subtle carbon molecule sketch in pale gray. Central visual: a pair of simple walking footprints that transform into tiny leaf shapes. No AI-artifacts, matte paper feel, slight grain. Text layout in modern clean Chinese fonts. Main title "看见你的每一'克'". Below: three short carbon statistics with realistic numbers. Bottom area contains a QR code placeholder with "扫码计算碳足迹" text. Entire poster feels like an NGO educational print, airy, calm, trustworthy. Aspect ratio 2:3.