将部分与文本主体对齐

Question

我正在尝试将节的标题与下面的正文对齐，以便节号相对于正文具有负边距。请参见此处：

以下 MWE 尝试创建上述输出：

\documentclass[a4paper,12pt]{article}
\usepackage[english]{babel}
\usepackage{blindtext}

\usepackage{titlesec}
\titleformat{\section}%
  {\LARGE\bfseries}% format applied to label+text
  {\hspace{-40pt} \LARGE\bfseries\thesection}% label
  {20pt}% horizontal separation between label and title body
  {}% before the title body
  []% after the title body

\begin{document}
\section{asd}
\blindtext
\end{document}

当然，\hspace{-40pt}我希望避免使用手册。有没有办法确定的宽度\thesection？

Answer 1

一个简单的方法是使用零宽度的右对齐框：

\documentclass[a4paper,12pt]{article}
\usepackage[english]{babel}
\usepackage{blindtext}

\usepackage{titlesec}
\titleformat{\section}%
  {\LARGE\bfseries}% format applied to label+text
  {\makebox[0cm][r]{\thesection\hspace{20pt}}}% label
  {0pt}% horizontal separation between label and title body
  {}% before the title body
  []% after the title body

\begin{document}
\section{asd}
\blindtext

\addtocounter{section}{1000}
\section{asd}
\blindtext
\end{document}