\documentclass[11pt,fleqn,explicit]{biditufte-book}

% add numbers to chapters, sections, subsections
\setcounter{secnumdepth}{2}
\usepackage{ptext}
\usepackage{tikz}



\usepackage{xepersian}
\settextfont{XB Zar}
%----------------------------------------------------------------------------------------
%	SECTION STYLING
%----------------------------------------------------------------------------------------
\newlength\outermargin
\newlength\innermargin
\setlength{\innermargin}{1in}
\setlength{\outermargin}{\dimexpr\paperwidth-\textwidth-\innermargin\relax}
\titleformat{\section}%
 {\normalfont\Large\color{purple}\setlength\fboxrule{0.8pt}}% format applied to label+text
 {\llap{\colorbox{red}{\makebox[\outermargin][l]{\raisebox{0pt}[\dimexpr\height+\fboxrule][\dimexpr\depth+\fboxrule]%
 {\vphantom{lp}\color{white}\bfseries\thesection\enspace}}}}}% label
 {0pt}% horizontal separation between label and title body
{\rlap{\hspace{-\fboxrule}\framebox[\dimexpr\linewidth + 2\fboxrule\relax][l]{\vphantom{lp}}\colorbox{orange}{\makebox[\outermargin][l]{\raisebox{0pt}[\dimexpr\height+\fboxrule][\dimexpr\depth+\fboxrule]%
 {\vphantom{lp}}}}}\enspace}% before the title body
[]




\begin{document}
\chapter{فصل}
\section{مقدمه}
\ptext[4]
\subsection{معرفنامه}
\ptext[1-10]
\chapter{فصل بعدی}
\section{قسمت آخر}
\ptext
\end{document}