diff --git a/_config.yml b/_config.yml
index 71f5858..5fd7276 100755
--- a/_config.yml
+++ b/_config.yml
@@ -334,8 +334,8 @@ style:
   border-radius:
     card: 12px
     block: 12px
-    button: 8px
-    image: 8px
+    bar: 6px
+    image: 6px
   color:
     # 动态颜色（会根据明暗主题重设明度值，只用关心色相和饱和度即可）
     background: 'hsl(212 16% 98%)' # 浅色背景颜色
diff --git a/layout/404.ejs b/layout/404.ejs
index e257eff..240a989 100755
--- a/layout/404.ejs
+++ b/layout/404.ejs
@@ -16,6 +16,6 @@ page.robots = 'none';
     <%- __('page.error.why') %>
   </p>
   <br><br>
-  <a class='button theme' id='back' href="<%- config.root %>"><%- __('page.error.action') %></a>
+  <a class='button' id='back' href="<%- config.root %>"><%- __('page.error.action') %></a>
 </article>
 <%- partial('_partial/plugins/comments/layout') %>
diff --git a/layout/_partial/cover/wiki_cover.ejs b/layout/_partial/cover/wiki_cover.ejs
index 4b93d49..407c9f6 100644
--- a/layout/_partial/cover/wiki_cover.ejs
+++ b/layout/_partial/cover/wiki_cover.ejs
@@ -39,7 +39,7 @@ function layoutWikiCover() {
     el += '<div class="description">' + desc + '</div>';
   }
   el += '<div class="start-wrap">';
-  el += '<a class="button theme start" href="#start">' + (proj.start || __('btn.getting_started')) + '</a>';
+  el += '<a class="button start" href="#start">' + (proj.start || __('btn.getting_started')) + '</a>';
   el += '</div>';
   el += '</article>';
   el += '</div>';
diff --git a/source/css/_common/blockquote.styl b/source/css/_common/blockquote.styl
index e76776a..c0fea92 100644
--- a/source/css/_common/blockquote.styl
+++ b/source/css/_common/blockquote.styl
@@ -6,5 +6,5 @@ blockquote
   background: var(--block)
   $bd-left = 4px
   border-left: $bd-left solid var(--text-meta)
-  border-radius: $bd-left $border-button $border-button $bd-left
+  border-radius: $bd-left $border-bar $border-bar $bd-left
   color: var(--text-p2)
\ No newline at end of file
diff --git a/source/css/_common/button.styl b/source/css/_common/button.styl
index 56dbe4c..e0ed82a 100644
--- a/source/css/_common/button.styl
+++ b/source/css/_common/button.styl
@@ -9,7 +9,7 @@ a.button
   font-weight: 500
   line-height: 1
   padding: 0.75rem 2rem
-  border-radius: 3px
+  border-radius: $border-button
   trans1: background
   font-size: $fs-15
   &.theme
@@ -17,6 +17,10 @@ a.button
     color: var(--card)
     &:hover
       background: $color-hover
+  &.start
+    border-radius: 100px
+    background: var(--text-p1)
+    color: var(--card)
 
 a[onclick]:hover
   cursor: pointer
diff --git a/source/css/_common/highlight.styl b/source/css/_common/highlight.styl
index 13ed87d..9e1a78f 100644
--- a/source/css/_common/highlight.styl
+++ b/source/css/_common/highlight.styl
@@ -34,8 +34,8 @@ p>code:not([class]),li>code:not([class])
     span
       padding: 4px 0.5rem
       display: block
-      border-bottom-left-radius: $border-button
-      border-bottom-right-radius: $border-button
+      border-bottom-left-radius: $border-bar
+      border-bottom-right-radius: $border-bar
       background: var(--block-hover)
   >table
     overflow: auto
diff --git a/source/css/_custom.styl b/source/css/_custom.styl
index 0013374..c0795af 100644
--- a/source/css/_custom.styl
+++ b/source/css/_custom.styl
@@ -57,8 +57,9 @@ $fs-codeblock = convert(hexo-config('style.font-size.codeblock'))
 
 $border-card = convert(hexo-config('style.border-radius.card'))
 $border-block = convert(hexo-config('style.border-radius.block'))
-$border-button = convert(hexo-config('style.border-radius.button'))
+$border-bar = convert(hexo-config('style.border-radius.bar'))
 $border-image = convert(hexo-config('style.border-radius.image'))
+$border-button = 4px
 
 // 可以动态变化的属性
 :root
diff --git a/source/css/_defines/func.styl b/source/css/_defines/func.styl
index 46ac005..86fcee6 100644
--- a/source/css/_defines/func.styl
+++ b/source/css/_defines/func.styl
@@ -83,7 +83,7 @@ scrollbar-codeblock($height = 4px)
   &::-webkit-scrollbar-thumb
     background: transparent
     cursor: pointer
-    border-radius: $border-button
+    border-radius: $border-bar
   &:hover
     &::-webkit-scrollbar-thumb
       background: var(--text-meta)
diff --git a/source/css/_layout/pages/archives.styl b/source/css/_layout/pages/archives.styl
index 10e9c70..8c17a5e 100644
--- a/source/css/_layout/pages/archives.styl
+++ b/source/css/_layout/pages/archives.styl
@@ -47,7 +47,7 @@
     &.child
       padding-left: 2rem
     padding: .5em 1rem
-    border-radius: $border-button
+    border-radius: $border-bar
     color: var(--text-p2)
     align-items: center
     justify-content: space-between
diff --git a/source/css/_layout/pages/error.styl b/source/css/_layout/pages/error.styl
index b6a67c4..ae9209d 100644
--- a/source/css/_layout/pages/error.styl
+++ b/source/css/_layout/pages/error.styl
@@ -17,7 +17,6 @@
     display: inline-block
     background: #FDB62F
     color: black
-    border-radius: 4px
     border: 2px solid black
 
 @media screen and (max-width: $device-tablet)
diff --git a/source/css/_layout/partial/related.styl b/source/css/_layout/partial/related.styl
index 98e78ea..5adcf9b 100644
--- a/source/css/_layout/partial/related.styl
+++ b/source/css/_layout/partial/related.styl
@@ -14,7 +14,7 @@
 
   a.more
     padding: 0.25rem 0.5rem
-    border-radius: $border-button
+    border-radius: $border-bar
     color: var(--text-p1)
 
 article.md-text.content+.related-wrap
diff --git a/source/css/_layout/tag-plugins/copy.styl b/source/css/_layout/tag-plugins/copy.styl
index 61abfdc..e14438d 100644
--- a/source/css/_layout/tag-plugins/copy.styl
+++ b/source/css/_layout/tag-plugins/copy.styl
@@ -3,7 +3,7 @@
   justify-content: space-between
   box-sizing: border-box
   background: var(--block)
-  border-radius: $border-button
+  border-radius: $border-bar
   border: 1px solid var(--block-border)
   overflow: hidden
   width: 320px
diff --git a/source/css/_layout/tag-plugins/folders.styl b/source/css/_layout/tag-plugins/folders.styl
index 0b52690..c17f4d6 100644
--- a/source/css/_layout/tag-plugins/folders.styl
+++ b/source/css/_layout/tag-plugins/folders.styl
@@ -1,7 +1,7 @@
 .tag-plugin.folders
   display: block
   margin: 1rem 0
-  border-radius: $border-button
+  border-radius: $border-bar
   font-size: $fs-14
   border: 1px solid var(--theme-border)
   overflow: hidden
diff --git a/source/css/_layout/tag-plugins/folding.styl b/source/css/_layout/tag-plugins/folding.styl
index c87d252..7cb20cc 100644
--- a/source/css/_layout/tag-plugins/folding.styl
+++ b/source/css/_layout/tag-plugins/folding.styl
@@ -2,7 +2,7 @@ details.folding
   display: block
   padding: 1rem
   margin: 1rem 0
-  border-radius: $border-button
+  border-radius: $border-bar
   font-size: $fs-14
   background: var(--theme-bg2)
   border: 1px solid var(--theme-border)
@@ -10,7 +10,7 @@ details.folding
     cursor: pointer
     padding: .75rem 1rem
     margin: 0 - 1rem
-    border-radius: $border-button
+    border-radius: $border-bar
     color: var(--text-p2)
     font-weight: 500
     position: relative
@@ -29,6 +29,7 @@ details.folding
       top: 50%
       transform: translateY(-50%)
       right: 1rem
+      line-height: 1
 
 
 details.folding[open]
@@ -47,8 +48,8 @@ details.folding[open]
     margin: 0 - 1rem
     margin-top: 0
     background: var(--card)
-    border-bottom-left-radius: 'calc(%s - 1px)' % $border-button
-    border-bottom-right-radius: 'calc(%s - 1px)' % $border-button
+    border-bottom-left-radius: 'calc(%s - 1px)' % $border-bar
+    border-bottom-right-radius: 'calc(%s - 1px)' % $border-bar
     font-size: $fs-15
     >:first-child
       margin-top: 0
diff --git a/source/css/_layout/tag-plugins/link.styl b/source/css/_layout/tag-plugins/link.styl
index eb89e7a..cd5b3a6 100644
--- a/source/css/_layout/tag-plugins/link.styl
+++ b/source/css/_layout/tag-plugins/link.styl
@@ -18,7 +18,7 @@
   @media screen and (max-width: $device-mobile-375)
     width: 100%
   box-shadow: $boxshadow-card
-  border-radius: $border-button
+  border-radius: $border-bar
   trans2: box-shadow transform
   &:hover
     box-shadow: $boxshadow-card-float
diff --git a/source/css/_layout/tag-plugins/toc.styl b/source/css/_layout/tag-plugins/toc.styl
index a2dae79..b7f8e77 100644
--- a/source/css/_layout/tag-plugins/toc.styl
+++ b/source/css/_layout/tag-plugins/toc.styl
@@ -1,7 +1,7 @@
 details.toc
   background: var(--block)
   border: 1px solid var(--block-border)
-  border-radius: $border-button
+  border-radius: $border-bar
   overflow: hidden
   color: var(--text-p2)
   summary
diff --git a/source/css/_layout/widgets/search.styl b/source/css/_layout/widgets/search.styl
index 56d17ee..746731f 100644
--- a/source/css/_layout/widgets/search.styl
+++ b/source/css/_layout/widgets/search.styl
@@ -16,7 +16,7 @@
     line-height: 1
     box-sizing: border-box
     font-family: $ff-body
-    border-radius: $border-button
+    border-radius: $border-bar
     background-color: var(--card)
     color: var(--text-p0)
     border: 1px solid var(--block-border)
@@ -38,7 +38,7 @@
     font-size: $fs-14
     padding: 2rem
     background: var(--block)
-    border-radius: $border-button
+    border-radius: $border-bar
 
   #search-result
     ul.search-result-list
diff --git a/source/css/_layout/widgets/toc_wiki.styl b/source/css/_layout/widgets/toc_wiki.styl
index ba585bf..92a04ae 100644
--- a/source/css/_layout/widgets/toc_wiki.styl
+++ b/source/css/_layout/widgets/toc_wiki.styl
@@ -5,7 +5,7 @@
 
 // 其它分页链接
 .widget-wrapper.toc.multi .doc-tree
-  border-radius: $border-button
+  border-radius: $border-bar
   background: var(--block)
   overflow: hidden
   border: 1px solid var(--block-border)