🎨 Sync all code from branch develop.

assets/css/_common/outline/footer/index.scss

@@ -78,13 +78,16 @@
 }
 
 .with-love {
+  color: $footer_icon_color;
   display: inline-block;
   margin: 0 5px;
 
+  @if $footer_icon_animated {
     animation: icon-animate 1.33s ease-in-out infinite;
   }
 }
 
+@if $footer_beian_enable {
   .beian img {
     display: inline-block;
     margin: 0 3px;
@@ -92,12 +95,14 @@
   }
 }
 
+@if $busuanzi_enable {
   .busuanzi-count {
+    @if $busuanzi_visitors {
       #busuanzi_container_site_uv {
         display: none;
       }
     }
-
+    @if $busuanzi_views {
       #busuanzi_container_site_pv {
         display: none;
       }

assets/css/_common/outline/mobile.scss

@@ -56,6 +56,7 @@
         margin-bottom: 10px !important;
         padding: 10px !important;
 
+        @if $note_icons {
           &:not(.no-icon) {
             padding-left: 35px !important;
           }

assets/css/_common/outline/sidebar/sidebar-toc.scss

@@ -1,3 +1,4 @@
+@if $toc_enable {
   .post-toc {
     font-size: $font-size-small;
     padding: 0 8px;

assets/css/_common/outline/sidebar/sidebar-toggle.scss

@@ -12,8 +12,10 @@
 
 @media (any-hover: hover) {
   body:not(.sidebar-active) .sidebar-toggle:hover {
+    @include toggle-arrow($sidebar_position);
   }
 }
 
 .sidebar-active .sidebar-toggle {
+  @include toggle-close($sidebar_position);
 }

assets/css/_common/outline/sidebar/site-state.scss

@@ -1,3 +1,4 @@
+@if $site_state {
   .site-state {
     @include flex-wrap();
     line-height: 1.4;