如何让蓝色节点根据红色节点的大小自动缩放？
\documentclass{standalone}
\usepackage{tikz}
\usepackage{xparse}
\newsavebox{\linetmp}
\usetikzlibrary{fit,shapes.multipart,positioning,shapes}
\NewDocumentCommand{\threepart}{mmmm}{%
\begin{tikzpicture}
\node[text width=60pt,fill=red] (date) {#1};
\node[right= 0pt of date.east,fill=cyan] (title) {\bfseries#2};
\node[below= 0pt of date.south west,anchor=north west] (body) {#3};
\node[below= 0pt of body] (quote) {\textit#4};
\draw[thick] (date.south west) -- (title.south east);
\node[inner sep=0pt,draw,thick,rounded corners,fit=(date)(title)(body)(quote)] (W) {};
\end{tikzpicture}%
}
\begin{document}
\noindent
\threepart{Services}{Event Driven Framework}{OS Adapter Layer}{4}
\bigskip
\noindent
\threepart{Some very long text in the left field}{Some very long text in the upper right field}{Some very long text in the lower field}{4}
\end{document}
