调整图表注释的边距

Question

\begin{landscape}
\begin{figure}[h]\ContinuedFloat
\centering
\begin{subfigure}[b]{0.3\linewidth}
    \includegraphics[width=\linewidth]{./Figures/Figurex0303bldprsr.pdf}
    \caption{Hypertension} \label{Figurex0303bldprsr}
\end{subfigure}
\hspace{0.2cm}
\begin{subfigure}[b]{0.3\linewidth}
    \includegraphics[width=\linewidth]{./Figures/Figurex0303hepatitis.pdf}
    \caption{Hepatitis} \label{Figurex0303hepatitis}
\end{subfigure}
\hspace{0.2cm}
\begin{subfigure}{0.3\linewidth}
    \includegraphics[width=\linewidth]{./Figures/Figurex0303diabetes.pdf}
    \caption{Diabetes} \label{Figurex0303diabetes}
\end{subfigure}
\caption[]{(Continued)}
\label{Figurex0303-cont}
% \begin{minipage}{0.9\textwidth}
%     \footnotesize \textit{Notes.} Coefficient plots for health and health-related behavior outcomes (vertical axis) based on estimating equation (2) with different bandwidth sizes (horizontal axis).
% \end{minipage}
\end{figure}
\end{landscape

我正在尝试调整小页面中注释周围的边距。出于某种原因，边距真的很长，尽管我将其设置为线宽的 0.9。这是横向模式。文档中的其他图表都正常。不确定这个问题是什么。任何帮助都非常感谢。