diff --git a/languages/en.yml b/languages/en.yml
index 6db44f6..f2b825d 100755
--- a/languages/en.yml
+++ b/languages/en.yml
@@ -14,7 +14,7 @@ btn:
   getting_started: Getting Started
   edit: Edit This Page
   top: Scroll to Top
-  bottom: Jump to Comment
+  comments: Join Discussion
 
 meta:
   recent_update: Recent Update
diff --git a/languages/zh-CN.yml b/languages/zh-CN.yml
index f1a9070..d65f4a8 100755
--- a/languages/zh-CN.yml
+++ b/languages/zh-CN.yml
@@ -14,7 +14,7 @@ btn:
   getting_started: 开始使用
   edit: 编辑本文
   top: 回到顶部
-  bottom: 评论跳转
+  comments: 参与讨论
 
 meta:
   recent_update: 最近更新
diff --git a/languages/zh-TW.yml b/languages/zh-TW.yml
index a4f9551..907c5ef 100755
--- a/languages/zh-TW.yml
+++ b/languages/zh-TW.yml
@@ -14,7 +14,7 @@ btn:
   getting_started: 開始使用
   edit: 編輯本文
   top: 回到頂部
-  bottom: 評論跳轉
+  comments: 參與討論
 
 meta:
   recent_update: 最近更新
diff --git a/layout/_partial/menubtn.ejs b/layout/_partial/menubtn.ejs
index 543069d..84e2146 100644
--- a/layout/_partial/menubtn.ejs
+++ b/layout/_partial/menubtn.ejs
@@ -5,12 +5,4 @@
   <button type='button' style='display:none' class='mobile-only leftbar-toggle mobile' onclick='sidebar.leftbar()'>
     <%- icon('default:leftbar') %>
   </button>
-  <button type='button' style='display:none' class='laptop-only button-toggle mobile' onclick='util.scrollTop()'>
-    <%- icon('default:upup') %>
-  </button>
-  <% if (page.comments) { %>
-    <button type='button' style='display:none' class='laptop-only button-toggle mobile' onclick='util.scrollComment()'>
-      <%- icon('default:tocomment') %>
-    </button>
-  <% } %>
 </div>
diff --git a/layout/_partial/widgets/toc.ejs b/layout/_partial/widgets/toc.ejs
index 88447bc..57fe2c7 100644
--- a/layout/_partial/widgets/toc.ejs
+++ b/layout/_partial/widgets/toc.ejs
@@ -55,10 +55,12 @@ function layoutDiv(fallback) {
   el += icon('default:upup')
   el += `<span>${__('btn.top')}</span>`
   el += `</a>`
-  el += `<a class="buttom" onclick="util.scrollComment()">`
-  el += icon('default:tocomment')
-  el += `<span>${__('btn.bottom')}</span>`
-  el += `</a>`
+  if (page.comments) {
+    el += `<a class="buttom" onclick="util.scrollComment()">`
+    el += icon('default:tocomment')
+    el += `<span>${__('btn.comments')}</span>`
+    el += `</a>`
+  }
   el += `</div>`
   el += `</widget>`
   return el
diff --git a/source/css/_plugins/comments/twikoo.styl b/source/css/_plugins/comments/twikoo.styl
index 677aec3..89b15f6 100644
--- a/source/css/_plugins/comments/twikoo.styl
+++ b/source/css/_plugins/comments/twikoo.styl
@@ -162,9 +162,3 @@
 
   .tk-comments-no
     color: var(--text-p1)
-
-if theme(dark)
-  _dark_comments()
-else if theme(auto)
-  @media (prefers-color-scheme: dark)
-    _dark_comments()