需要新的 cite 命令：\cite[#1] 的参数不应放在 shorttitle 之后，而应放在其中间

Question

我想要\cite[#1]{thebook}一本（用速记法）带有编号段落的书，形式不是shorthand, \pnfmt{#1}，而是简单的XEN~#1~\emph{TP}\,3，其中有速记XEN~\emph{TP}\,3（带有参考书目的链接）。

我试图创建一个新的xparse-command \THEBOOK，但是没有作用。

% uses-*- MODE: latex; TeX-engine: luatex; coding: utf-8; -*-
\RequirePackage{xparse}
\documentclass[paper=A6,landscape,fontsize=8pt]{scrartcl}
\usepackage[main=english]{babel}
\usepackage{csquotes}
\usepackage[style=philosophy-modern,sortlocale=de,language=english,%
            sorting=nyvt,backend=biber,hyperref=true,shorthandintro=false]{biblatex}
\addbibresource{shortbib.bib}
\usepackage{hyperref}
\makeatletter
% what I've tried
\NewDocumentCommand{\XEN}{o}{\cite[#1]{Xenophanes:TP}}
\DeclareFieldFormat[book,inbook]{citetitle}%
{\XEN{XEN~#1~\mkbibemph{TP}\,3}}
\DeclareFieldFormat[book,inbook]{shorttitle}%
{\XEN{XEN~#1~\mkbibemph{TP}\,3}}
\makeatother
\begin{document}

I cite: \XEN[87] oder \XEN{87}

\smallskip
It should look like: XEN~87~\emph{TP}\,3 (with a hyperlink)

\nocite{*}
\printshorthands
\printbibliography

\begin{filecontents*}[overwrite]{shortbib.bib}
@Book{Xenophanes:TP,
      editor =   {Benedikt Strobel},
      options =      {useauthor=false, useeditor=true},
      title =    {Xenophanes von Kolophon},
      shorttitle =   {Xenophanes},
      langid =   {english},
      date =     2018,
      translator =   {Benedikt Strobel},
      annotator =    {Benedikt Strobel},
      series =   {Traditio Praesocratica},
      number =   3,
      publisher =    {Gruyter},
      location =     {Berlin},
      pagination =   {paragraph},
      shorthand =    {XEN\addnbspace\mkbibemph{TP}\addnbthinspace3}}
\end{filecontents*}
\end{document}