diff --git a/lib/pages/whisper_detail/widget/chat_item.dart b/lib/pages/whisper_detail/widget/chat_item.dart
index edc08c6f..b92307e0 100644
--- a/lib/pages/whisper_detail/widget/chat_item.dart
+++ b/lib/pages/whisper_detail/widget/chat_item.dart
@@ -260,107 +260,104 @@ class ChatItem extends StatelessWidget {
 
   Widget msgTypeSysGroupAutoCreated_208(
       ThemeData theme, content, Color textColor) {
-    return Container(
-      constraints: const BoxConstraints(maxWidth: 300.0),
-      decoration: BoxDecoration(
-        color: theme.colorScheme.secondaryContainer.withOpacity(0.4),
-        borderRadius: const BorderRadius.only(
-          topLeft: Radius.circular(16),
-          topRight: Radius.circular(16),
-          bottomLeft: Radius.circular(6),
-          bottomRight: Radius.circular(16),
+    return Center(
+      child: Container(
+        constraints: const BoxConstraints(maxWidth: 400),
+        decoration: BoxDecoration(
+          color: theme.colorScheme.onInverseSurface,
+          borderRadius: const BorderRadius.all(Radius.circular(16)),
         ),
-      ),
-      padding: const EdgeInsets.all(12),
-      child: Column(
-        crossAxisAlignment: CrossAxisAlignment.start,
-        children: [
-          Text(
-            content['main_title'],
-            style: TextStyle(
-              letterSpacing: 0.6,
-              height: 1.5,
-              color: textColor,
-              fontWeight: FontWeight.bold,
-            ),
-          ),
-          for (var i in content['sub_cards']) ...[
-            const SizedBox(height: 6),
-            GestureDetector(
-              onTap: () async {
-                RegExp bvRegex =
-                    RegExp(r'BV[0-9A-Za-z]{10}', caseSensitive: false);
-                Iterable<Match> matches = bvRegex.allMatches(i['jump_url']);
-                if (matches.isNotEmpty) {
-                  Match match = matches.first;
-                  String bvid = match.group(0)!;
-                  try {
-                    SmartDialog.showLoading();
-                    final int cid = await SearchHttp.ab2c(bvid: bvid);
-                    SmartDialog.dismiss<dynamic>().then(
-                      (e) => PageUtils.toVideoPage('bvid=$bvid&cid=$cid',
-                          arguments: <String, String?>{
-                            'pic': i['cover_url'],
-                            'heroTag': Utils.makeHeroTag(bvid),
-                          }),
-                    );
-                  } catch (err) {
-                    SmartDialog.dismiss();
-                    SmartDialog.showToast(err.toString());
-                  }
-                } else {
-                  SmartDialog.showToast('未匹配到 BV 号');
-                  PageUtils.handleWebview(i['jump_url']);
-                }
-              },
-              child: Row(
-                children: [
-                  NetworkImgLayer(
-                    width: 130,
-                    height: 130 * 9 / 16,
-                    src: i['cover_url'],
-                  ),
-                  const SizedBox(width: 6),
-                  Expanded(
-                    child: Column(
-                      crossAxisAlignment: CrossAxisAlignment.start,
-                      children: [
-                        Text(
-                          i['field1'],
-                          maxLines: 2,
-                          style: TextStyle(
-                            letterSpacing: 0.6,
-                            height: 1.5,
-                            color: textColor,
-                            fontWeight: FontWeight.bold,
-                          ),
-                        ),
-                        Text(
-                          i['field2'],
-                          style: TextStyle(
-                            letterSpacing: 0.6,
-                            height: 1.5,
-                            color: textColor.withOpacity(0.6),
-                            fontSize: 12,
-                          ),
-                        ),
-                        Text(
-                          i['field3'],
-                          style: TextStyle(
-                            letterSpacing: 0.6,
-                            height: 1.5,
-                            color: textColor.withOpacity(0.6),
-                            fontSize: 12,
-                          ),
-                        ),
-                      ],
-                    ),
-                  ),
-                ],
+        padding: const EdgeInsets.all(12),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text(
+              content['main_title'],
+              style: TextStyle(
+                letterSpacing: 0.6,
+                height: 1.5,
+                color: textColor,
+                fontWeight: FontWeight.bold,
               ),
             ),
+            for (var i in content['sub_cards']) ...[
+              const SizedBox(height: 6),
+              GestureDetector(
+                onTap: () async {
+                  RegExp bvRegex =
+                      RegExp(r'BV[0-9A-Za-z]{10}', caseSensitive: false);
+                  Iterable<Match> matches = bvRegex.allMatches(i['jump_url']);
+                  if (matches.isNotEmpty) {
+                    Match match = matches.first;
+                    String bvid = match.group(0)!;
+                    try {
+                      SmartDialog.showLoading();
+                      final int cid = await SearchHttp.ab2c(bvid: bvid);
+                      SmartDialog.dismiss<dynamic>().then(
+                        (e) => PageUtils.toVideoPage('bvid=$bvid&cid=$cid',
+                            arguments: <String, String?>{
+                              'pic': i['cover_url'],
+                              'heroTag': Utils.makeHeroTag(bvid),
+                            }),
+                      );
+                    } catch (err) {
+                      SmartDialog.dismiss();
+                      SmartDialog.showToast(err.toString());
+                    }
+                  } else {
+                    SmartDialog.showToast('未匹配到 BV 号');
+                    PageUtils.handleWebview(i['jump_url']);
+                  }
+                },
+                child: Row(
+                  children: [
+                    NetworkImgLayer(
+                      width: 130,
+                      height: 130 * 9 / 16,
+                      src: i['cover_url'],
+                    ),
+                    const SizedBox(width: 6),
+                    Expanded(
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          Text(
+                            i['field1'],
+                            maxLines: 2,
+                            style: TextStyle(
+                              letterSpacing: 0.6,
+                              height: 1.5,
+                              color: textColor,
+                              fontWeight: FontWeight.bold,
+                            ),
+                          ),
+                          Text(
+                            i['field2'],
+                            style: TextStyle(
+                              letterSpacing: 0.6,
+                              height: 1.5,
+                              color: textColor.withOpacity(0.6),
+                              fontSize: 12,
+                            ),
+                          ),
+                          Text(
+                            i['field3'],
+                            style: TextStyle(
+                              letterSpacing: 0.6,
+                              height: 1.5,
+                              color: textColor.withOpacity(0.6),
+                              fontSize: 12,
+                            ),
+                          ),
+                        ],
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+            ],
           ],
-        ],
+        ),
       ),
     );
   }