Setting font weight with -V mainfont has no effect

[slmjkdbtl]

I'm trying to convert epub to pdf that contains CJK characters and need to use a font that contains the characters. I'm using Noto Sans SC

pandoc -f epub -t pdf --pdf-engine=xelatex "book.epub" -o "book.pdf" -V mainfont="Noto Sans SC-Bold" --verbose

The font is successfully set however specifying the font weight has no effect. In this case Noto Sans SC-Bold is found but the output pdf file still uses the default weight which is Light. Is this a known limitation or I don't have the correct command?

[jgm]

Not sure. But I see fontspec examples like

\usepackage{fontspec}
\setmainfont[
    Ligatures=TeX,
    UprightFont = *-Boo,
    ItalicFont = *-BooObl,
    SmallCapsFont = *SC-Boo,
    BoldFont = *-Dem,
    BoldItalicFont = *-DemObl
]{Futura}

So perhaps you could try mainfont="Noto Sans" and mainfontoptions"UprightFont = * SC-Bold" ?