diff --git a/archive.php b/archive.php
index 9713f55..63b5279 100644
--- a/archive.php
+++ b/archive.php
@@ -4,10 +4,10 @@
     <div class="recent-posts category_ui" id="recent-posts">
         <?php if ($this->have()): ?>
     	<?php while($this->next()): ?>
-           <div class="recent-post-item" >
+           <div class="recent-post-item">
            <wehao class="post_cover">
           <a  class="article-title" href="<?php $this->permalink() ?>">     
-              	<img class="post_bg" data-lazy-src="<?php echo get_ArticleThumbnail($this);?>" src="<?php echo GetLazyLoad() ?>" onerror="this.onerror=null;this.src='https://tva1.sinaimg.cn/large/007X0Rdyly1gpaaf55n1rj30ic09u0sw.jpg'"></a>
+              	<img class="post-bg" data-lazy-src="<?php echo get_ArticleThumbnail($this);?>" src="<?php echo GetLazyLoad() ?>" onerror="this.onerror=null;this.src='<?php $this->options->themeUrl('img/404.jpg'); ?>'"></a>
             </wehao>
               <div class="recent-post-info">
 			    <a  class="article-title" href="<?php $this->permalink() ?>"><?php $this->title() ?></a>
diff --git a/functions.php b/functions.php
index 7c24643..379114e 100644
--- a/functions.php
+++ b/functions.php
@@ -1165,8 +1165,8 @@ function ArtPlayer($text)
 // 重写文章图片加载
 function PostImage($text)
 {
-    $text = preg_replace_callback('/<img src=\"(.*?)\".*?alt\=\"(.*?)\".*?>/ism', function ($text) {
-        return '<img class="" title="'.$text[2].'" alt="'.$text[2].'" data-lazy-src="'.$text[1].'" src="'.GetLazyLoad().'" />';
+    $text = preg_replace_callback('/<img src=\"(.*?)"\ alt=\"(.*?)"\>/ism', function ($text) {
+        return '<img title="'.$text[2].'" alt="'.$text[2].'" data-lazy-src="'.$text[1].'" src="'.GetLazyLoad().'" />';
     }, $text);
     return $text;
 }
diff --git a/index.php b/index.php
index 0739746..21b0f2d 100644
--- a/index.php
+++ b/index.php
@@ -7,7 +7,7 @@
  * <a href="https://www.wehaox.com">个人网站</a> | <a href="https://blog.wehaox.com/archives/typecho-butterfly.html">主题使用文档</a>
  * @package Typecho-Butterfly
  * @author b站:wehao-
- * @version 1.7.3
+ * @version 1.7.4
  * @link https://space.bilibili.com/34174433
  */
 if (!defined('__TYPECHO_ROOT_DIR__')) exit;
@@ -45,7 +45,7 @@
 <main class="layout" id="content-inner">
 <div class="recent-posts" id="recent-posts">
 <?php while($this->next()): ?>
-    <div class="recent-post-item" >
+    <div class="recent-post-item">
         <wehao class="post_cover">
              <a  href="<?php $this->permalink() ?>">
                  <img class="post-bg" data-lazy-src="<?php echo get_ArticleThumbnail($this);?>" src="<?php echo GetLazyLoad() ?>" onerror="this.onerror=null;this.src='<?php $this->options->themeUrl('img/404.jpg'); ?>'"></a>
@@ -112,7 +112,7 @@ function ver() {console.log(`
     #    # #    #   #     #   #      #   #  #      #        #    
     #####   ####    #     #   ###### #    # #      ######   #  
     
-                            1.7.3
+                            1.7.4
 ===================================================================
 `);}
 </script>
\ No newline at end of file
diff --git a/post_sidebar.php b/post_sidebar.php
index 88f5ec1..62198d8 100644
--- a/post_sidebar.php
+++ b/post_sidebar.php
@@ -46,9 +46,11 @@
     <?php elseif(!$this->options->author_bottom) : ?>
     <?php endif; ?>
 </div>
+<?php if (!empty($this->options->sidebarBlock) && in_array('ShowAnnounce', $this->options->sidebarBlock)): ?> 
     <div class="card-widget card-announcement"><div class="item-headline">
         <i class="fas fa-bullhorn card-announcement-animation"></i><span>公告</span></div>
     <div class="announcement_content"><?php $this->options->announcement() ?></div></div>
+<?php endif; ?>
 <?php if (!empty($this->options->AD)): ?>
     <div class="card-widget">
         <div class="item-headline"><i class="fa-solid fa-rectangle-ad"></i><span>广告</span></div>