diff --git a/_config.yml b/_config.yml
index 12461d2..d5c2773 100644
--- a/_config.yml
+++ b/_config.yml
@@ -70,6 +70,7 @@ show_count: false
 recent_posts_limits: 5
 
 social:
+  # email: mailto:xxx@gmail.com
   # github: https://github.com/yourname
   # google: https://plus.google.com/yourname
   # twitter: https://twitter.com/yourname
@@ -260,7 +261,7 @@ live2d:
 
 reimu_cursor: true
 
-icon_font: 4552607_09mhdxci6yrk
+icon_font: 4552607_tq6stt6tcg
 
 # Dependent cdn links
 vendor:
diff --git a/source/css/_partial/sidebar.styl b/source/css/_partial/sidebar.styl
index 837dcd8..7d9d2cb 100644
--- a/source/css/_partial/sidebar.styl
+++ b/source/css/_partial/sidebar.styl
@@ -132,6 +132,9 @@ $sidebar-state-content
   height: 25px
   font: 20px font-icon
 
+.icon-email
+  color: #ff7777
+
 .icon-github
   color: #191717
 
diff --git a/source/css/fontawesome.styl b/source/css/fontawesome.styl
index 4a69a55..90cb41c 100644
--- a/source/css/fontawesome.styl
+++ b/source/css/fontawesome.styl
@@ -121,7 +121,7 @@ font-icon = "Font Awesome 6 Free", "Font Awesome 6 Brands", "Font Awesome 5 Free
 .post-sticky
   &:before
     font-family: font-icon
-    content:"\f087"
+    content:"\f164"
 
 .reimu-popup
   .popup-btn-close
@@ -242,6 +242,10 @@ font-icon = "Font Awesome 6 Free", "Font Awesome 6 Brands", "Font Awesome 5 Free
   &:before
     content: "\f1b6"
 
+.icon-email
+  &:before
+    content: "\f0e0"
+
 .sidebar-btn-wrapper
   .sidebar-toc-btn
     &:before
diff --git a/source/css/iconfont.styl b/source/css/iconfont.styl
index 303a633..d58b6a2 100644
--- a/source/css/iconfont.styl
+++ b/source/css/iconfont.styl
@@ -253,6 +253,10 @@ _c = '//at.alicdn.com/t/c/font_' + id + '.ttf'
   &:before
     content: "\e624"
 
+.icon-email
+  &:before
+    content: "\e63c"
+
 .sidebar-btn-wrapper
   .sidebar-toc-btn
     &:before