:root{--font-serif:"Iowan Old Style", Baskerville, "Times New Roman", "Songti SC", STSong, serif;--font-sans:Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif}body,.prose{font-family:var(--font-sans)}:is(h1,h2,h3,h4,h5,h6),.prose :is(h1,h2,h3,h4,h5,h6){font-family:var(--font-serif)}