Skeletal System — Detailed Infographic for Education and Learning

Extract the core themes and key points from the input content 【Skeletal System】 and generate an infographic (choose one of two styles): A) Cute digital cartoon style: landscape 3:4, pure white/very light solid color background, macaron color scheme (mainly light green, paired with sky blue/beige/light orange/light pink), rounded and friendly lines; organize information using rounded rectangles, flowcharts, and arrows; include a small number of cute anthropomorphized icons (sun/cloud/chemical molecule, etc.); text should be in rounded sans-serif cartoon style, highlighting keywords and leaving plenty of white space. B) Hand-drawn blackboard report/science manuscript chalk sketch style: portrait 3:4, dark gray near blackboard texture background; main body in white chalk lines + cross-hatching shadows; use a small amount of highly saturated accent colors (lemon yellow/cyan/magenta/bright green) to emphasize key graphics and annotations; overall resembling a draft page bursting with inspiration, elements are dense but the core is clear, text should be in irregular handwritten chalk font. The default language is consistent with the input content language.