diff --git a/Ink Canvas/MainWindow.xaml b/Ink Canvas/MainWindow.xaml
index 169342cc..cf129f5f 100644
--- a/Ink Canvas/MainWindow.xaml	
+++ b/Ink Canvas/MainWindow.xaml	
@@ -4952,33 +4952,36 @@
                     HorizontalAlignment="Left"
                     VerticalAlignment="Top"
                     Margin="0,0,0,0"
-                    Width="58"
-                    CornerRadius="10"
+                    Width="64"
+                    CornerRadius="8"
                     Background="{DynamicResource FloatBarBackground}"
-                    BorderBrush="{DynamicResource FloatBarBorderBrush}"
+                    BorderBrush="#33FFFFFF"
                     BorderThickness="1"
                     SnapsToDevicePixels="True"
                     Visibility="Collapsed"
-                    Panel.ZIndex="1001">
+                    Panel.ZIndex="1001"
+                    ui:ThemeManager.RequestedTheme="Dark">
+                <Border.Effect>
+                    <DropShadowEffect BlurRadius="24"
+                                      ShadowDepth="3"
+                                      Direction="270"
+                                      Opacity="0.45"
+                                      Color="#000000" />
+                </Border.Effect>
                 <Border.Resources>
                     <Style x:Key="PdfSidebarNavButtonStyle" TargetType="Border">
-                        <Setter Property="Width" Value="42" />
-                        <Setter Property="Height" Value="38" />
-                        <Setter Property="CornerRadius" Value="8" />
-                        <Setter Property="BorderThickness" Value="1" />
-                        <Setter Property="BorderBrush" Value="{DynamicResource FloatBarForeground}" />
+                        <Setter Property="Width" Value="40" />
+                        <Setter Property="Height" Value="36" />
+                        <Setter Property="CornerRadius" Value="4" />
+                        <Setter Property="BorderThickness" Value="0" />
                         <Setter Property="Cursor" Value="Hand" />
                         <Setter Property="SnapsToDevicePixels" Value="True" />
-                        <Setter Property="Background">
-                            <Setter.Value>
-                                <SolidColorBrush Color="White" Opacity="0.10" />
-                            </Setter.Value>
-                        </Setter>
+                        <Setter Property="Background" Value="Transparent" />
                         <Style.Triggers>
                             <Trigger Property="IsMouseOver" Value="True">
                                 <Setter Property="Background">
                                     <Setter.Value>
-                                        <SolidColorBrush Color="White" Opacity="0.22" />
+                                        <SolidColorBrush Color="#FFFFFF" Opacity="0.08" />
                                     </Setter.Value>
                                 </Setter>
                             </Trigger>
@@ -4988,22 +4991,19 @@
                 <Grid>
                     <ikw:SimpleStackPanel VerticalAlignment="Center"
                                          HorizontalAlignment="Center"
-                                         Spacing="10"
-                                         Margin="0,8,0,8">
+                                         Spacing="8"
+                                         Margin="0,10,0,10">
                         <TextBlock Text="PDF"
-                                   FontSize="11"
+                                   FontSize="10"
                                    FontWeight="SemiBold"
                                    HorizontalAlignment="Center"
                                    Foreground="{DynamicResource FloatBarForeground}"
-                                   Opacity="0.9" />
-                        <Border CornerRadius="8"
-                                Padding="6,8"
-                                BorderThickness="1"
-                                BorderBrush="{DynamicResource FloatBarForeground}"
-                                SnapsToDevicePixels="True">
-                            <Border.Background>
-                                <SolidColorBrush Color="White" Opacity="0.08" />
-                            </Border.Background>
+                                   Opacity="0.78" />
+                        <Border CornerRadius="4"
+                                Padding="8,6"
+                                BorderThickness="0"
+                                SnapsToDevicePixels="True"
+                                Background="#14FFFFFF">
                             <TextBlock Name="TextBlockPdfSidebarPageLabel"
                                        Text="— / —"
                                        FontSize="12"
@@ -5018,35 +5018,33 @@
                                 Style="{StaticResource PdfSidebarNavButtonStyle}"
                                 Opacity="0.35"
                                 IsHitTestVisible="False"
+                                ToolTip="上一页"
                                 MouseDown="Border_MouseDown"
                                 MouseUp="BorderPdfSidebarPagePrev_MouseUp">
-                            <TextBlock Text="&#x2039;"
-                                       FontSize="20"
-                                       FontWeight="SemiBold"
-                                       HorizontalAlignment="Center"
-                                       VerticalAlignment="Center"
-                                       Margin="0,-2,0,0"
-                                       Foreground="{DynamicResource FloatBarForeground}" />
+                            <ui:FontIcon Icon="{x:Static ui:SegoeFluentIcons.ChevronLeft}"
+                                         FontSize="14"
+                                         HorizontalAlignment="Center"
+                                         VerticalAlignment="Center"
+                                         Foreground="{DynamicResource FloatBarForeground}" />
                         </Border>
                         <Border Name="BorderPdfSidebarPageNext"
                                 Style="{StaticResource PdfSidebarNavButtonStyle}"
                                 Opacity="0.35"
                                 IsHitTestVisible="False"
+                                ToolTip="下一页"
                                 MouseDown="Border_MouseDown"
                                 MouseUp="BorderPdfSidebarPageNext_MouseUp">
-                            <TextBlock Text="&#x203A;"
-                                       FontSize="20"
-                                       FontWeight="SemiBold"
-                                       HorizontalAlignment="Center"
-                                       VerticalAlignment="Center"
-                                       Margin="0,-2,0,0"
-                                       Foreground="{DynamicResource FloatBarForeground}" />
+                            <ui:FontIcon Icon="{x:Static ui:SegoeFluentIcons.ChevronRight}"
+                                         FontSize="14"
+                                         HorizontalAlignment="Center"
+                                         VerticalAlignment="Center"
+                                         Foreground="{DynamicResource FloatBarForeground}" />
                         </Border>
                         <TextBlock Text="翻页"
                                    FontSize="9"
                                    HorizontalAlignment="Center"
                                    Foreground="{DynamicResource FloatBarForeground}"
-                                   Opacity="0.65" />
+                                   Opacity="0.55" />
                     </ikw:SimpleStackPanel>
                 </Grid>
             </Border>