diff --git a/layout/includes/header/post-info.pug b/layout/includes/header/post-info.pug
index 96f1e9b..316a506 100644
--- a/layout/includes/header/post-info.pug
+++ b/layout/includes/header/post-info.pug
@@ -77,7 +77,7 @@
         else if whichCount === 'Gitalk'
           +countBlock
             a(href=url_for(page.path) + '#post-comment')
-              span.gitalk-#card-toc
+              span.gitalk-comment-count
         else if whichCount === 'Twikoo'
           +countBlock
             a(href=url_for(page.path) + '#post-comment')
diff --git a/package.json b/package.json
index 3039164..11aed36 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hexo-theme-butterfly",
-  "version": "3.4.1",
+  "version": "3.4.2",
   "description": "A Simple and Card UI Design theme for Hexo",
   "main": "package.json",
   "scripts": {
diff --git a/source/js/main.js b/source/js/main.js
index 15a8081..f32b446 100644
--- a/source/js/main.js
+++ b/source/js/main.js
@@ -247,40 +247,38 @@ document.addEventListener('DOMContentLoaded', function () {
  * fancybox和 mediumZoom
  */
   const addFancybox = function (ele) {
-    if (ele.length) {
-      const runFancybox = (ele) => {
-        ele.each(function (i, o) {
-          const $this = $(o)
-          const lazyloadSrc = $this.attr('data-lazy-src') || $this.attr('src')
-          const dataCaption = $this.attr('alt') || ''
-          $this.wrap(`<a href="${lazyloadSrc}" data-fancybox="group" data-caption="${dataCaption}" class="fancybox"></a>`)
-        })
+    const runFancybox = (ele) => {
+      ele.each(function (i, o) {
+        const $this = $(o)
+        const lazyloadSrc = $this.attr('data-lazy-src') || $this.attr('src')
+        const dataCaption = $this.attr('alt') || ''
+        $this.wrap(`<a href="${lazyloadSrc}" data-fancybox="group" data-caption="${dataCaption}" class="fancybox"></a>`)
+      })
 
-        $().fancybox({
-          selector: '[data-fancybox]',
-          loop: true,
-          transitionEffect: 'slide',
-          protect: true,
-          buttons: ['slideShow', 'fullScreen', 'thumbs', 'close'],
-          hash: false
-        })
-      }
+      $().fancybox({
+        selector: '[data-fancybox]',
+        loop: true,
+        transitionEffect: 'slide',
+        protect: true,
+        buttons: ['slideShow', 'fullScreen', 'thumbs', 'close'],
+        hash: false
+      })
+    }
 
-      if (typeof $.fancybox === 'undefined') {
-        $('head').append(`<link rel="stylesheet" type="text/css" href="${GLOBAL_CONFIG.source.fancybox.css}">`)
-        $.getScript(`${GLOBAL_CONFIG.source.fancybox.js}`, function () {
-          runFancybox($(ele))
-        })
-      } else {
+    if (typeof $.fancybox === 'undefined') {
+      $('head').append(`<link rel="stylesheet" type="text/css" href="${GLOBAL_CONFIG.source.fancybox.css}">`)
+      $.getScript(`${GLOBAL_CONFIG.source.fancybox.js}`, function () {
         runFancybox($(ele))
-      }
+      })
+    } else {
+      runFancybox($(ele))
     }
   }
 
   const addMediumZoom = () => {
     const zoom = mediumZoom(document.querySelectorAll('#article-container :not(a)>img'))
     zoom.on('open', e => {
-      const photoBg = $(document.documentElement).attr('data-theme') === 'dark' ? '#121212' : '#fff'
+      const photoBg = document.documentElement.getAttribute('data-theme') === 'dark' ? '#121212' : '#fff'
       zoom.update({
         background: photoBg
       })
@@ -288,15 +286,17 @@ document.addEventListener('DOMContentLoaded', function () {
   }
 
   const jqLoadAndRun = () => {
-    const isFancybox = GLOBAL_CONFIG.lightbox === 'fancybox'
-    const $fancyboxEle = isFancybox ? document.querySelectorAll('#article-container :not(a):not(.gallery-group) > img, #article-container > img') : null
+    const $fancyboxEle = GLOBAL_CONFIG.lightbox === 'fancybox'
+      ? document.querySelectorAll('#article-container :not(a):not(.gallery-group) > img, #article-container > img')
+      : []
+    const fbLengthNoZero = $fancyboxEle.length > 0
     const $jgEle = document.querySelectorAll('#article-container .justified-gallery')
-    const jgEleLength = $jgEle.length
+    const jgLengthNoZero = $jgEle.length > 0
 
-    if (jgEleLength || $fancyboxEle !== null) {
+    if (jgLengthNoZero || fbLengthNoZero) {
       btf.isJqueryLoad(() => {
-        jgEleLength && runJustifiedGallery($jgEle)
-        isFancybox && addFancybox($fancyboxEle)
+        jgLengthNoZero && runJustifiedGallery($jgEle)
+        fbLengthNoZero && addFancybox($fancyboxEle)
       })
     }
   }