diff --git a/resources/views/chat/partials/scripts.blade.php b/resources/views/chat/partials/scripts.blade.php
index 78e3c28..f9936dc 100644
--- a/resources/views/chat/partials/scripts.blade.php
+++ b/resources/views/chat/partials/scripts.blade.php
@@ -284,7 +284,7 @@
             item.className = 'user-item';
             item.dataset.username = username;
 
-            const headface = (user.headface || '1.gif').toLowerCase();
+            const headface = (user.headface || '1.gif');
             const headImgSrc = headface.startsWith('storage/') ? '/' + headface : '/images/headface/' +
                 headface;
 
@@ -516,7 +516,7 @@
 
         // 普通用户（包括 AI小班长）用数据库头像，播报类用特殊喇叭图标
         const senderInfo = onlineUsers[msg.from_user];
-        const senderHead = ((senderInfo && senderInfo.headface) || '1.gif').toLowerCase();
+        const senderHead = ((senderInfo && senderInfo.headface) || '1.gif');
         let headImgSrc = senderHead.startsWith('storage/') ? '/' + senderHead : `/images/headface/${senderHead}`;
         if (msg.from_user.endsWith('播报') || msg.from_user === '星海小博士' || msg.from_user === '系统传音' || msg.from_user === '系统公告') {
             headImgSrc = '/images/bugle.png';
diff --git a/resources/views/chat/partials/user-actions.blade.php b/resources/views/chat/partials/user-actions.blade.php
index f4b7a1b..b11b370 100644
--- a/resources/views/chat/partials/user-actions.blade.php
+++ b/resources/views/chat/partials/user-actions.blade.php
@@ -604,7 +604,7 @@
             <div class="modal-body">
                 <div class="profile-row">
                     <img class="profile-avatar" x-show="userInfo.headface"
-                        :src="(userInfo.headface || '1.gif').toLowerCase().startsWith('storage/') ? '/' + (userInfo.headface || '1.gif').toLowerCase() : '/images/headface/' + (userInfo.headface || '1.gif').toLowerCase()"
+                        :src="(userInfo.headface || '1.gif').startsWith('storage/') ? '/' + (userInfo.headface || '1.gif') : '/images/headface/' + (userInfo.headface || '1.gif')"
                         x-on:error="$el.style.display='none'">
                     <div class="profile-info">
                         <h4>