添加包后枚举转到左侧（页面外书写位置）

Question

我在使用以下代码进行枚举时遇到问题：

\begin{enumerate}
    \item[\textbf{Class A:}] High quality clean P-waves;
    \item[\textbf{Class B:}] Complete noise and absent P-waves. This included P-waves with \textit{no resemblance} to normal P-wave morphology, either due to motion artefacts, severe baseline wander, muscular activation interference, or simply by the absence of a P-wave;
    \item[\textbf{Class C:}] Unreliable, noise-distorted P-waves. This included P-waves that had \textit{some resemblance} to normal P-wave morphology.
\end{enumerate}

一开始，这很顺利，并且枚举与剩余文本对齐，正如我想要的那样：

但是，在添加\usepackage{enumitem}到序言中之后（我需要它作为表格），枚举项移到左边：

这只发生在我调整项目符号的 \item 中。例如，在编号项目中，没有任何变化。

有人能帮助我吗？

Answer 1

我会使用description列表：

\documentclass{article}
\usepackage{enumitem}

%---------------- show page layout. don't use in a real document!
\usepackage{showframe}
\renewcommand\ShowFrameLinethickness{0.15pt}
\renewcommand*\ShowFrameColor{\color{red}}
%---------------------------------------------------------------%

\begin{document}
\begin{description}
    \item[Class A:] High quality clean P-waves;
    \item[Class B:] Complete noise and absent P-waves. This included P-waves with \textit{no resemblance} to normal P-wave morphology, either due to motion artefacts, severe baseline wander, muscular activation interference, or simply by the absence of a P-wave;
    \item[Class C:] Unreliable, noise-distorted P-waves. This included P-waves that had \textit{some resemblance} to normal P-wave morphology.
\end{description}
\end{document}
\end{document}

这使：

（红线表示文字边框）

Answer 2

尝试这个：

\documentclass{article}
\usepackage{calc} 
\usepackage{enumitem}

\begin{document}

\noindent and P-wave quality was manually annotated and double-checked. Following the tool’s methodology, P-waves were classified into three distinct classes (Figure 4.1):
\begin{enumerate}[label=Class \Alph*: , font=\bfseries, wide=0pt, leftmargin=\widthof{\textbf{Class B:\hspace*{\labelsep}}}%
]
\item High quality clean P-waves;
\item Complete noise and absent P-waves. This included P-waves with \textit{no resemblance} to normal P-wave morphology, either due to motion artefacts, severe baseline wander, muscular activation interference, or simply by the absence of a P-wave;
\item Unreliable, noise-distorted P-waves. This included P-waves that had \textit{some resemblance} to normal P-wave morphology.
\end{enumerate}

\end{document}