Vintage hand-drawn sketchnote educational infographic, [画面比例], explaining [主题].
Title "[主标题]" inside an ornate hand-drawn banner; mix script and bold capital lettering.
Composition: [时间线 / 路线图 / 因果图 / 对比表 / 分层结构].
Background: aged parchment or vintage notebook paper with subtle stains and creases.
Show [要点一]、[要点二]、[要点三] as detailed ink illustrations with watercolor fills, connected by [箭头样式]. Add concise Chinese labels.
Muted warm palette: olive green, burnt orange, mustard yellow, faded blue and sepia. Decorative dividers, compass, lightbulbs and thematic doodles. Retro academic, informative, nostalgic, rich paper texture, clear hierarchy.