diff --git a/src/Snap.Hutao/Snap.Hutao/View/Control/AnnouncementContentViewer.xaml.cs b/src/Snap.Hutao/Snap.Hutao/View/Control/AnnouncementContentViewer.xaml.cs
index afa1d250..e0ca9511 100644
--- a/src/Snap.Hutao/Snap.Hutao/View/Control/AnnouncementContentViewer.xaml.cs
+++ b/src/Snap.Hutao/Snap.Hutao/View/Control/AnnouncementContentViewer.xaml.cs
@@ -7,6 +7,7 @@ using Microsoft.Web.WebView2.Core;
 using Snap.Hutao.Control.Extension;
 using Snap.Hutao.Control.Theme;
 using Snap.Hutao.Web.Hoyolab.Hk4e.Common.Announcement;
+using System.Globalization;
 using System.Text;
 using System.Text.RegularExpressions;
 using Windows.Foundation;
@@ -76,6 +77,7 @@ internal sealed partial class AnnouncementContentViewer : UserControl
         }
 
         content = StyleRegex().Replace(content, string.Empty);
+        content = RemRegex().Replace(content, "calc($1 * 10) rem");
 
         bool isDarkMode = ThemeHelper.IsDarkMode(theme);
 
@@ -125,6 +127,9 @@ internal sealed partial class AnnouncementContentViewer : UserControl
     [GeneratedRegex(" style=\"(?!\")*?vertical-align:middle;\"")]
     private static partial Regex StyleRegex();
 
+    [GeneratedRegex("([0-9]+\\.[0-9]+)rem")]
+    private static partial Regex RemRegex();
+
     private void OnLoaded(object sender, RoutedEventArgs e)
     {
         LoadAnnouncementAsync().SafeForget();