diff --git a/src/BiliLite.UWP/Controls/CommentControl.xaml b/src/BiliLite.UWP/Controls/CommentControl.xaml
index 1d854b5a..197696ad 100644
--- a/src/BiliLite.UWP/Controls/CommentControl.xaml
+++ b/src/BiliLite.UWP/Controls/CommentControl.xaml
@@ -195,7 +195,7 @@
                 <StackPanel Grid.Column="0" 
                             Grid.ColumnSpan="3" 
                             Grid.Row="2" 
-                            Margin="3 0 0 0"
+                            Margin="8 0 0 0"
                             Visibility="{Binding ElementName=CommentControlContent,Path=DataContext.IsNarrowMode,Mode=OneWay,Converter={StaticResource BoolToVisibilityConverter}}">
                     <ContentPresenter Content="{x:Bind Mode=OneWay}" ContentTemplate="{StaticResource CommentContentTemplate}"></ContentPresenter>
                 </StackPanel>
@@ -408,6 +408,7 @@
                     ItemsSource="{x:Bind HotReplyContents,Mode=OneWay}" 
                     ItemContainerStyle="{StaticResource hotReplyStyle}"  
                     Background="{ThemeResource CardColor}"
+                    Margin="0 0 8 0"
                     SelectionMode="None" 
                     IsItemClickEnabled="False" 
                     ScrollViewer.VerticalScrollMode="Disabled" 
diff --git a/src/BiliLite.UWP/Extensions/StringExtensions.cs b/src/BiliLite.UWP/Extensions/StringExtensions.cs
index 5bff2a1a..420f7116 100644
--- a/src/BiliLite.UWP/Extensions/StringExtensions.cs
+++ b/src/BiliLite.UWP/Extensions/StringExtensions.cs
@@ -80,7 +80,7 @@ public static string TraditionalToSimplified(this string input)
         /// <param name="txt"></param>
         /// <param name="emote"></param>
         /// <returns></returns>
-        public static RichTextBlock ToRichTextBlock(this string txt, JObject emote, bool isLive = false, string fontColor = null, string fontWeight = "Normal")
+        public static RichTextBlock ToRichTextBlock(this string txt, JObject emote, bool isLive = false, string fontColor = null, string fontWeight = "Normal",string lowProfilePrefix="")
         {
             var input = txt;
             try
@@ -105,15 +105,21 @@ public static RichTextBlock ToRichTextBlock(this string txt, JObject emote, bool
                     //处理av号/bv号
                     if (!isLive) { input = HandelVideoID(input); }
 
+                    if (!string.IsNullOrEmpty(lowProfilePrefix))
+                    {
+                        lowProfilePrefix = $"<Run Foreground=\"{{ThemeResource LowProfileTextColor}}\" Text=\"{lowProfilePrefix}\"></Run>";
+                    }
+
                     //生成xaml
                     var xaml = string.Format(@"<RichTextBlock HorizontalAlignment=""Stretch"" xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""
                                             xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml"" xmlns:d=""http://schemas.microsoft.com/expression/blend/2008""
                                             xmlns:mc = ""http://schemas.openxmlformats.org/markup-compatibility/2006"" LineHeight=""{1}"" {2} {3}>
-                                            <Paragraph>{0}</Paragraph>
+                                            <Paragraph>{4}{0}</Paragraph>
                                             </RichTextBlock>", input, 
                                                                 isLive ? 22 : 20,
                                                                 fontColor == null ? "" : $"Foreground=\"{fontColor}\"",
-                                                                $"FontWeight=\"{fontWeight}\"");
+                                                                $"FontWeight=\"{fontWeight}\"",
+                                                                lowProfilePrefix);
                     var p = (RichTextBlock)XamlReader.Load(xaml);
                     return p;
                 }
diff --git a/src/BiliLite.UWP/Models/Common/Comment/HotReply.cs b/src/BiliLite.UWP/Models/Common/Comment/HotReply.cs
index 900503e9..db182dd6 100644
--- a/src/BiliLite.UWP/Models/Common/Comment/HotReply.cs
+++ b/src/BiliLite.UWP/Models/Common/Comment/HotReply.cs
@@ -1,7 +1,4 @@
-using System;
-using System.Linq;
-using Windows.UI.Xaml.Controls;
-using Windows.UI.Xaml.Documents;
+using Windows.UI.Xaml.Controls;
 using BiliLite.Extensions;
 using Newtonsoft.Json.Linq;
 
@@ -21,12 +18,12 @@ public RichTextBlock Content
             {
                 if (Message.Length <= 50)
                 {
-                    return $"{UserName}: {Message}"
-                        .ToRichTextBlock(Emote);
+                    return $"{Message}"
+                        .ToRichTextBlock(Emote, lowProfilePrefix: $"{UserName}:  ");
                 }
 
-                return $"{UserName}: {Message.SubstringCommentText(50)}..."
-                    .ToRichTextBlock(Emote);
+                return $"{Message.SubstringCommentText(50)}..."
+                    .ToRichTextBlock(Emote, lowProfilePrefix: $"{UserName}:  ");
             }
         }
     }
diff --git a/src/BiliLite.UWP/Themes/Dark.xaml b/src/BiliLite.UWP/Themes/Dark.xaml
index 3438a4ed..3a8fa8c2 100644
--- a/src/BiliLite.UWP/Themes/Dark.xaml
+++ b/src/BiliLite.UWP/Themes/Dark.xaml
@@ -14,6 +14,7 @@
     <Color x:Key="DefaultTextColor">#CC000000</Color>
     <Color x:Key="SystemColorHighLightColor">#ec407a</Color>
     <Color x:Key="LinkTextColor">#008ac5</Color>
+    <Color x:Key="LowProfileTextColor">Gray</Color>
 
     <SolidColorBrush x:Key="NavigationViewTopPaneBackground" Color="{ThemeResource TopPaneBackground}" />
     <Color x:Key="NoTapGridBackground">#FF282828</Color>
diff --git a/src/BiliLite.UWP/Themes/Light.xaml b/src/BiliLite.UWP/Themes/Light.xaml
index 6d373c7e..a7db159f 100644
--- a/src/BiliLite.UWP/Themes/Light.xaml
+++ b/src/BiliLite.UWP/Themes/Light.xaml
@@ -14,6 +14,7 @@
     <Color x:Key="DefaultTextColor">#CC000000</Color>
     <Color x:Key="SystemColorHighLightColor">#ec407a</Color>
     <Color x:Key="LinkTextColor">#008ac5</Color>
+    <Color x:Key="LowProfileTextColor">Gray</Color>
 
     <SolidColorBrush x:Key="NavigationViewTopPaneBackground" Color="{ThemeResource TopPaneBackground}" />
     <Color x:Key="NoTapGridBackground">#FFF9F9F9</Color>