进行了一些小修复

assets/css/frontend/pages/submit.css

@@ -147,8 +147,7 @@
   object-fit: cover;
 }
 
-.featured-edit .featured-video-placeholder,
-.featured-edit .featured-empty {
+.featured-edit .featured-video-placeholder {
   display: flex;
   align-items: center;
   justify-content: center;

assets/js/front-submit.js

@@ -443,8 +443,6 @@
             ? '<img src="' + d.pic + '" alt="">'
             : '<div class="featured-video-placeholder"><i class="fa fas fa-play"></i></div>') +
           '<span class="featured-type-badge"><i class="fa fas fa-video"></i></span>';
-      } else {
-        html = '<div class="featured-empty"><i class="fa fas fa-image"></i><span>设置文章封面</span></div>';
       }
       preview.innerHTML = html;
       var clearBtn = qs('[data-featured-action="close"]');

templates/parts/submit/featured.php

@@ -39,11 +39,6 @@ $can_video = !empty($ctx['can_cover_video']);
 				<div class="featured-video-placeholder"><i class="fa fas fa-play"></i></div>
 			<?php endif; ?>
 			<span class="featured-type-badge"><i class="fa fas fa-video"></i></span>
-		<?php else : ?>
-			<div class="featured-empty">
-				<i class="fa fas fa-image"></i>
-				<span><?php esc_html_e('设置文章封面', 'aksrt'); ?></span>
-			</div>
 		<?php endif; ?>
 	</div>
 	<div class="btns-full flex ac jc">