diff --git a/README.md b/README.md
index 8238b79..6d0a05b 100644
--- a/README.md
+++ b/README.md
@@ -153,6 +153,9 @@ search: true
 # RSS
 rss: /atom.xml
 
+# DarkMode
+darkmode: true
+
 # Comment：1、Valine (recommended)；2、Gitalk
 
 # 1、Valine [A fast, simple & powerful comment system](https://github.com/xCss/Valine)
diff --git a/_config.yml b/_config.yml
index 4d69d43..e01133b 100644
--- a/_config.yml
+++ b/_config.yml
@@ -100,6 +100,9 @@ search: true
 # RSS订阅(先安装hexo-generator-feed插件，再去博客根目录config进行配置)
 rss: /atom.xml
 
+# 是否启用黑夜模式开关
+darkmode: true
+
 # 评论：1、Valine(推荐)；2、Gitalk
 
 # 1、Valine[一款快速、简洁且高效的无后端评论系统](https://github.com/xCss/Valine)
diff --git a/layout/_partial/totop.ejs b/layout/_partial/totop.ejs
index f81daaa..4f4941c 100644
--- a/layout/_partial/totop.ejs
+++ b/layout/_partial/totop.ejs
@@ -1,3 +1,8 @@
 <div class="totop" id="totop">
   <i class="ri-arrow-up-line"></i>
-</div>
\ No newline at end of file
+</div>
+<% if (theme.darkmode){ %>
+<div class="todark" id="todark">
+  <i class="ri-moon-line"></i>
+</div>
+<% } %>
\ No newline at end of file
diff --git a/layout/layout.ejs b/layout/layout.ejs
index 7f58043..1596c5f 100644
--- a/layout/layout.ejs
+++ b/layout/layout.ejs
@@ -5,7 +5,7 @@
     <main class="content">
       <%- body %>
       <%- partial('_partial/footer', null, {cache: !config.relative_link}) %>
-      <div class="to_top">
+      <div class="float_btns">
         <%- partial('_partial/totop') %>
       </div>
     </main>
diff --git a/source-src/css/_partial/ayer.styl b/source-src/css/_partial/ayer.styl
index 3adebad..a46de6f 100644
--- a/source-src/css/_partial/ayer.styl
+++ b/source-src/css/_partial/ayer.styl
@@ -55,11 +55,11 @@
     &:hover
       color sea
 
-.to_top
+.float_btns
   position fixed
   bottom 10rem
   right 50px
-  z-index 9
+  z-index 9996
   text-align center
   transform scale(1.2)
 
@@ -89,5 +89,5 @@
     #subtitle-box
       font-size 2rem
   
-  .to_top
+  .float_btns
     right 10px
\ No newline at end of file
diff --git a/source-src/css/_partial/reward.styl b/source-src/css/_partial/reward.styl
index 3efe296..6380eb0 100644
--- a/source-src/css/_partial/reward.styl
+++ b/source-src/css/_partial/reward.styl
@@ -13,8 +13,7 @@
     margin-left 50%
     transform translateX(-50%)
     box-shadow 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12)
-    -webkit-transition .4s ease-in-out
-    transition .4s ease-in-out
+    transition(.4s ease-in-out)
     cursor pointer
     &:hover,
     &:active
diff --git a/source-src/css/_partial/totop.styl b/source-src/css/_partial/totop.styl
index 3312847..757426d 100644
--- a/source-src/css/_partial/totop.styl
+++ b/source-src/css/_partial/totop.styl
@@ -18,14 +18,21 @@
   }
 }
 
-.totop
+.totop,.todark
   position relative
-  display inline-block
+  display block
   overflow hidden
   cursor pointer
   rounded-circle(3.2rem)
-  background-color froth-light
+  background-color darken(froth-light,2%)
   line-height 3rem
+  opacity .6
+  transition(opacity 1s ease)
+  &:hover
+    opacity 1
+  
+.totop
+  margin-bottom .8rem
   &:hover > i {
     animation rocket .3s ease-in-out
-  }
+  }
\ No newline at end of file
diff --git a/source-src/css/style.styl b/source-src/css/style.styl
index 49f5b93..2ffd65d 100644
--- a/source-src/css/style.styl
+++ b/source-src/css/style.styl
@@ -32,16 +32,20 @@ body
   &.darkmode
     background: rgba(0,0,0,.6)
     *
-      color darken(#fff,10%)
-    .ri-arrow-up-line
-      color #333 !important
-    .article-entry
-      code
-        background: darken(#999,20%)
-    .article-header .article-title,.share-outer i
+      color: darken(#fff,10%)
+    .article-entry code
+      background: darken(#ddd,10%) !important
+      color: #c7254e !important
+    .article-header .article-title,.share-outer i,.category-list .category-list-item i,.category-list a:hover .category-list-item,.article-date, .article-category .article-category-link, .archive-year-wrap .archive-year, .archive-article-date,a.toc-link,.tag-list > .tag-list-item:before,.article-tag-list:before
       color: darken(#fff,10%) !important
-    .share-icons a i,#reward .reward-p,#reward .reward-p i
+    .share-icons a i,.float_btns i,#reward .reward-p,#reward .reward-p i,.local-search-input
       color: darken(#999,20%) !important
+    .v *
+      color: #555 !important
+    .tag-list > .tag-list-item .tag-list-link,.article-tag-list .article-tag-list-link
+      background: darken(#fff,10%) !important
+      color: #555 !important
+
 a
   color link-color
   &:hover
diff --git a/source/css/main.css b/source/css/main.css
index a17c5af..c2ed0c8 100644
--- a/source/css/main.css
+++ b/source/css/main.css
@@ -1 +1 @@
-@font-face{font-family:remixicon;src:url(https://cdn.jsdelivr.net/npm/remixicon@2.1.0/fonts/remixicon.eot?t=1572787439022);src:url(https://cdn.jsdelivr.net/npm/remixicon@2.1.0/fonts/remixicon.eot?t=1572787439022#iefix) format("embedded-opentype"),url(https://cdn.jsdelivr.net/npm/remixicon@2.1.0/fonts/remixicon.woff2?t=1572787439022) format("woff2"),url(https://cdn.jsdelivr.net/npm/remixicon@2.1.0/fonts/remixicon.woff?t=1572787439022) format("woff"),url(https://cdn.jsdelivr.net/npm/remixicon@2.1.0/fonts/remixicon.ttf?t=1572787439022) format("truetype"),url(https://cdn.jsdelivr.net/npm/remixicon@2.1.0/fonts/remixicon.svg?t=1572787439022#remixicon) format("svg");font-display:swap}[class*=" 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.macbook-screen{position:relative;background-color:transparent;border-radius:1rem;border:1.25rem solid #fff;box-shadow:0 1rem 3rem rgba(0,0,0,.15),inset 0 0 .5rem rgba(0,0,0,.15)}.macbook .macbook-keyboard{display:none;position:relative;box-sizing:content-box;background-color:#fff;border-bottom:.75rem solid #f2f2f2;border-bottom-left-radius:50%;border-bottom-right-radius:50%;margin:-.5rem -5rem 0;height:.5rem;box-shadow:0 .5rem 3rem rgba(0,0,0,.15)}.macbook .macbook-keyboard:before{content:"";position:absolute;left:50%;transform:translateX(-50%);background:linear-gradient(90deg,#f2f2f2,#fff,#f2f2f2);box-shadow:inset 0 0 .1rem rgba(0,0,0,.05);width:20%;height:.3rem;border-radius:.125rem}@media (min-width:768px){.macbook .macbook-screen{border-width:2rem 1.25rem 1.25rem}.macbook .macbook-keyboard{display:block}}.macbook-wrap{padding:1rem 9rem}.scrolling-wrap{min-height:30rem;overflow:hidden}.scrolling{position:absolute;top:30rem;width:100%;-webkit-animation:scrolling-animation 10s ease-in-out 1s infinite;animation:scrolling-animation 10s ease-in-out 1s infinite}@-webkit-keyframes scrolling-animation{0%{top:0}10%{top:0;transform:translateY(0)}30%{transform:translateY(-35%)}60%{transform:translateY(-75%)}90%{transform:translateY(-100%)}to{transform:translateY(-100%)}}@keyframes scrolling-animation{0%{top:0}10%{top:0;transform:translateY(0)}30%{transform:translateY(-35%)}60%{transform:translateY(-75%)}90%{transform:translateY(-100%)}to{transform:translateY(-100%)}}#reward-btn{position:relative;display:inline-block;height:36px;line-height:36px;padding:0 20px;font-size:18px;color:#fff;background:#403e3e;text-decoration:none;border-radius:4px;margin:60px 0 60px 50%;transform:translateX(-50%);box-shadow:0 2px 5px 0 rgba(0,0,0,.16),0 2px 10px 0 rgba(0,0,0,.12);transition:.4s ease-in-out;cursor:pointer}#reward-btn:active,#reward-btn:hover{box-shadow:0 6px 12px rgba(0,0,0,.2),0 4px 15px rgba(0,0,0,.2)}#reward{position:absolute;z-index:9999;left:50%;top:20%;transform:translateX(-50%);margin:60px 0;padding:0 20px 20px;background-color:#dbedff;display:none}#reward.ready{visibility:hidden;display:block;transform:translate(-50%,-100%);transition:.3s}#reward.in{visibility:visible;opacity:1;transform:translate(-50%)}#reward .close{height:28px;line-height:28px;width:28px;display:block;text-align:center;position:absolute;right:-12px;top:-10px;border-radius:50%;background-color:#403e3e;cursor:pointer}#reward .close i{font-size:20px;color:#fff}#reward .reward-p{color:#403e3e;font-weight:700;font-size:20px;text-align:center;text-shadow:1px 1px 1px #70b6ff}#reward .reward-p i{margin:0 10px;transform:translateY(2px)}#reward .reward-box{display:flex;justify-content:space-between;width:100%}#reward .reward-box .reward-item{text-align:center;margin:0 10px}#reward .reward-type{font-size:16px;display:block;color:#000;margin-top:10px}#reward .reward-img{display:block;width:12rem;height:12rem;border-radius:3px}@media (max-width:768px){#reward{padding:0 10px 10px}#reward .reward-img{max-width:10rem;max-height:10rem;margin:0 5px}}.share-wrap{min-height:20px;display:none;position:relative;z-index:1;right:0;bottom:0;width:250px;background-color:#f5f5f5;border-radius:2px}.share-wrap .arrow{position:absolute;z-index:-1;top:-3px;right:20px;display:block;width:10px;height:10px;transform:rotate(45deg);background-color:#f5f5f5}.share-btn{float:right;position:relative}.share-outer{display:flex;justify-content:flex-end;border:none;text-shadow:none;text-decoration:none;width:auto;color:#0681d0;height:28px;line-height:26px}.share-outer i{font-size:18px;margin-right:5px;color:#36adf9}.share-outer:hover{transform:none;cursor:pointer}.share-icons{display:flex;justify-content:flex-end;align-items:center;flex-wrap:wrap}.share-icons a{border-radius:50%;display:inline-block;vertical-align:middle;zoom:1;margin:3px;transition:.3s;text-align:center;color:#70b6ff;width:28px;height:28px;line-height:26px;font-size:13px}.share-icons a i{font-size:24px}.share-icons a.weibo{color:#d81e06}.share-icons a.weixin{color:#51c332}.share-icons a.qq{color:#4cafe9}.share-icons a.douban{color:#05b711}.share-icons a.twitter{color:#00aced}.share-icons a.facebook{color:#3b5998}.share-icons a.google{color:#dd4b39}.share-icons a:active{color:ocean}.share-icons a:hover{transform:scale(1.2)}.wx-share-modal{position:fixed;top:24%;left:50%;z-index:9999;padding:20px;text-align:center;color:#727272;background:#fff;border-radius:4px;box-shadow:0 2px 5px 0 rgba(0,0,0,.16),0 2px 10px 0 rgba(0,0,0,.12);opacity:0;transform:translate(-50%,-200%)}.wx-share-modal p{margin-bottom:10px}.wx-share-modal.ready{visibility:0;display:block;transform:translate(-50%,-100%);transition:.3s}.wx-share-modal.in{display:block;visibility:visible;opacity:1;transform:translate(-50%)}.wx-share-modal .modal-close{position:absolute;right:15px;top:15px;color:rgba(0,0,0,.2);font-size:16px;line-height:20px}.wx-share-modal .modal-close i{font-size:24px}.wx-share-modal .modal-close:active,.wx-share-modal .modal-close:hover{color:rgba(0,0,0,.4)}#share-mask{position:fixed;width:100%;height:100%;left:0;top:0;background-color:rgba(0,0,0,.6);z-index:999;display:none}.navbar{position:relative;padding-top:3rem;text-align:center}.navbar .nav{list-style:none;padding-left:0;margin-left:0}.navbar .nav .nav-item-link{display:block;padding:1rem;color:#bbb;text-decoration:none;cursor:pointer}.navbar .nav .nav-item-link:hover{opacity:.8;background-color:#403e3e}.navbar .nav.nav-main .nav-item-link i{font-size:1rem;display:block;line-height:1}.navbar-bottom{position:absolute;bottom:0;width:100%;font-size:2rem}.logo{text-align:center;margin-bottom:2rem}.logo img{width:4.2rem}.todark,.totop{position:relative;display:block;overflow:hidden;cursor:pointer;width:3.2rem;height:3.2rem;border-radius:3.2rem;background-color:#efefef;line-height:3rem;opacity:.6;transition:opacity 1s ease}.todark:hover,.totop:hover{opacity:1}.totop{margin-bottom:.8rem}.totop:hover>i{-webkit-animation:rocket .3s ease-in-out;animation:rocket .3s ease-in-out}@-webkit-keyframes rocket{0%{transform:translateY(0);opacity:1}45%{transform:translateY(-3.2rem);opacity:0}55%{transform:translateY(3.2rem);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes rocket{0%{transform:translateY(0);opacity:1}45%{transform:translateY(-3.2rem);opacity:0}55%{transform:translateY(3.2rem);opacity:0}to{transform:translateY(0);opacity:1}}@media (max-width:768px){html{font-size:60%}}
\ No newline at end of file
diff --git a/source/js/ayer.js b/source/js/ayer.js
index 18e9043..10264d2 100644
--- a/source/js/ayer.js
+++ b/source/js/ayer.js
@@ -99,9 +99,9 @@
     $('.content').scroll(function () {
       var scrollTop = $('.content').scrollTop();
       if (scrollTop > upperLimit) {
-        $(scrollElem).stop().fadeTo(300, 1); // fade back in
+        $(scrollElem).stop().fadeTo(200, .6); // fade back in
       } else {
-        $(scrollElem).stop().fadeTo(300, 0); // fade out
+        $(scrollElem).stop().fadeTo(200, 0); // fade out
       }
     });
 
@@ -139,6 +139,26 @@
     $('#mask').fadeOut(100)
     $('#reward').fadeOut(100)
   })
+
+  // darkmode
+  if(sessionStorage.getItem('darkmode')==1){
+    $('body').addClass('darkmode')
+    $('#todark i').removeClass('ri-moon-line').addClass('ri-sun-line')
+  }else{
+    $('body').removeClass('darkmode')
+    $('#todark i').removeClass('ri-sun-line').addClass('ri-moon-line')
+  }
+  $('#todark').click(()=>{
+    if(sessionStorage.getItem('darkmode')==1){
+      $('body').removeClass('darkmode')
+      $('#todark i').removeClass('ri-sun-line').addClass('ri-moon-line')
+      sessionStorage.removeItem('darkmode')
+    }else{
+      $('body').addClass('darkmode')
+      $('#todark i').removeClass('ri-moon-line').addClass('ri-sun-line')
+      sessionStorage.setItem('darkmode',1)
+    }
+  })
 })(jQuery);