diff --git a/themes/Ying/layouts/page/circles.html b/themes/Ying/layouts/page/circles.html
index ab49b4c0..4211aaa7 100644
--- a/themes/Ying/layouts/page/circles.html
+++ b/themes/Ying/layouts/page/circles.html
@@ -333,6 +333,15 @@
   </div>
 
   <script>
+    /* 站内 RSS/favicon 服务地址（友圈头像兜底用，替代原先的 cravatar 默认灰头像） */
+    var RSS_API_BASE = '{{ site.Params.rssapi.base | default "https://api.200181.xyz" }}';
+    /* 头像加载失败 → 换站内 favicon 服务；再失败就让它显示接口自带的字母兜底图 */
+    function fcAvatarFallback(img) {
+      img.onerror = null;
+      var target = img.getAttribute('data-fallback') || '';
+      img.src = RSS_API_BASE + '/api/favicon' + (target ? '?url=' + encodeURIComponent(target) : '');
+    }
+
     window.FriendCircle = {
       allPosts: [],
       currentIndex: 0,
@@ -374,7 +383,7 @@
             + '<img src="' + bgImageSrc + '" class="fc-bg-image" onerror="this.style.opacity=0">'
             + '<div class="fc-bottom">'
               + '<div class="fc-author-pill">'
-                + '<img src="' + post.avatar + '" class="fc-avatar" onerror="this.src=\'https://cravatar.cn/avatar/default?s=50\'">'
+                + '<img src="' + post.avatar + '" class="fc-avatar" data-fallback="' + (post.blogUrl || post.link || '') + '" onerror="fcAvatarFallback(this)">'
                 + '<span class="fc-author-name">' + post.author + '</span>'
               + '</div>'
               + '<div class="fc-date"><i class="ri-calendar-line"></i> ' + dateStr + '</div>'
@@ -460,7 +469,10 @@
                 link: a.link || '',
                 date: a.pubDate || '',
                 author: a.feedName || a.author || '',
-                avatar: a.favicon || '',
+                // 源里没图标 → 用站内 favicon 服务（返回真实图标或字母 SVG，不是灰头像）
+                avatar: a.favicon || (a.siteUrl || a.link
+                  ? RSS_API_BASE + '/api/favicon?url=' + encodeURIComponent(a.siteUrl || a.link)
+                  : ''),
                 blogUrl: a.siteUrl || '',
                 image: null,
                 description: ''