#let meta = (
  title: "GreLin 演示标题",
  subtitle: "副标题 / 日期 / 演讲者",
  author: "GreLin",
)

#let slides = (
  (
    title: "章节一",
    body: "在此编写第一页正文。",
  ),
  (
    title: "章节二",
    body: "在此编写第二页正文。",
  ),
)