修改index.php

<?php get_header(); ?>

<div class="page-information-card-container"></div>

<?php get_sidebar(); ?>

<div id="primary" class="content-area">
	<main id="main" class="site-main article-list article-list-home" role="main">
	<?php if ( have_posts() ) : ?>
		<?php
			while ( have_posts() ) :
				the_post();
				if (get_post_type() == 'shuoshuo'){
					get_template_part( 'template-parts/content-shuoshuo-preview' );
				}else{
					get_template_part( 'template-parts/content-preview', get_option('argon_article_list_layout', '1'));
				}
			endwhile;
		?>
		<?php
			echo get_argon_formatted_paginate_links_for_all_platforms();
		?>
		<?php
	endif;
	?>

<?php get_footer(); ?>

<?php get_header(); ?>

<div class="page-information-card-container"></div>

<?php get_sidebar(); ?>

<div id="primary" class="content-area">
	<main id="main" class="site-main article-list article-list-home" role="main">
	<?php
		// 定义查询参数，获取所有文章
		$args = array(
			'posts_per_page' => -1, // -1 表示获取所有文章
			'post_type' => 'post',
			'post_status' => 'publish'
		);
		$query = new WP_Query($args);
		
		if ($query->have_posts()) : 
			while ($query->have_posts()) :
				$query->the_post();
				if (get_post_type() == 'shuoshuo'){
					get_template_part( 'template-parts/content-shuoshuo-preview' );
				}else{
					get_template_part( 'template-parts/content-preview', get_option('argon_article_list_layout', '1'));
				}
			endwhile;
			wp_reset_postdata(); // 重置文章查询
		endif;
	?>
	</main>
</div>

<?php get_footer(); ?>