everypage + textblock 无法正常工作

Question

我正在论文的每一页边缘设置章节标记，但遇到了一个问题\thechapter偏离了一个。我设法通过检查发货文档并尝试不同的钩子。如果有人遇到类似的问题，这里有一个最小的工作示例。

干杯

\documentclass[10pt,a4paper]{book}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{graphicx}
\usepackage[left=2cm,right=2cm,top=2cm,bottom=2cm]{geometry}

\usepackage[absolute]{textpos}
\TPGrid[0mm,0mm]{10}{12}

\newcommand*{\AddEverypageHook}[1]{%
 % \AddToHook{shipout/background}{\put(1in,-1in){#1}}}  % This does not work
   \AddToHook{shipout/before}{#1}                       % This is the fix
}                       
 
\begin{document}
\AddEverypageHook{
    \textblockcolour{black}
    \begin{textblock}{1}(0,0)
        \vspace{10.5mm}
        \hspace{7mm}\huge{\sffamily\fontseries{b}\selectfont\thechapter}
        \vspace{10.5mm}
    \end{textblock}
}
\chapter{Foo}
\chapter{Bar}
\end{document}