Customization image's caption in Catch Box 4.8.1 works only classic box

Hi, I customized image caption by additional CSS before Gutenberg, as below;

/* Caption */
.wp-caption .wp-caption-text {
	color: black;
	font-family:  "Helvetica Neue", Helvetica, Arial, sans-serif;
	font-size: 16px;
	padding-left: 0;
}
/* Caption remove dash */
.wp-caption .wp-caption-text::before {
    content: "";
}

It worked very well before Gutenberg, however, it doesn't work in Gutenberg block. After upgrade to Catch Box 4.8.1, my blog's captions of images in Gutenberg blocks changed to Catch Box's default. I expect that my customization works in Gutenberg, but it still doesn't work. On the other hand, classic box is OK. Can I customize caption in Gutenberg block with Catch Box 4.8.1? Sample of Gutenberg block...not change. https://chokowalk.sakura.ne.jp/n02/ginkgo-biloba-of-tama-center/ Sample of Classic block...it is OK. https://chokowalk.sakura.ne.jp/n02/enkakuji-ume/