fixed 昼夜切换 bug

themes/Ying/layouts/partials/artalk.html

@@ -27,7 +27,8 @@
             // 检查 Artalk 是否已定义
             if (typeof Artalk !== 'undefined') {
                 var isDark = document.documentElement.getAttribute('data-theme') === 'dark';
-                Artalk.init({
+                // 保存实例到全局变量 window.artalk
+                window.artalk = Artalk.init({
                     el: '#Comments',
                     server: '{{ .Site.Params.artalk.server }}',
                     site: '{{ .Site.Params.artalk.site }}',