diff --git a/hugo.toml b/hugo.toml
index 7163a306..e8329253 100644
--- a/hugo.toml
+++ b/hugo.toml
@@ -1168,7 +1168,7 @@ twemoji = false
 # set to true, images in the content will be shown as the gallery if the image has a title, e.g. ![alt](src "title")
 # set to "force", images in the content will be forced to shown as the gallery regardless of the image has a title or not, e.g. ![alt](src)
 # TODO change gallery engine in the future
-lightgallery = true
+lightgallery = false
 # whether to enable the ruby extended syntax
 ruby = true
 # whether to enable the fraction extended syntax
diff --git a/layouts/_markup/render-codeblock.rss.xml b/layouts/_markup/render-codeblock.rss.xml
new file mode 100644
index 00000000..79577aa2
--- /dev/null
+++ b/layouts/_markup/render-codeblock.rss.xml
@@ -0,0 +1,3 @@
+{{- $result := transform.HighlightCodeBlock . -}}
+<pre><code>{{ $result.Inner }}</code></pre>
+{{- /* EOF */ -}}
diff --git a/layouts/_partials/function/code-header.html b/layouts/_partials/function/code-header.html
index 850c1594..f0453a84 100644
--- a/layouts/_partials/function/code-header.html
+++ b/layouts/_partials/function/code-header.html
@@ -1,7 +1,7 @@
 {{- /* Code header for classic mode code blocks */ -}}
 {{- $config := .Config -}}
 {{- $wrapper := .Wrapper -}}
-{{- $type := lower .Type | default "fallback" -}}
+{{- $lang := cond (transform.CanHighlight .Type) (lower .Type) "fallback" -}}
 {{- $name := $config.name -}}
 {{- $lineNosBtn := "" -}}
 {{- $lineWrapBtn := "" -}}
@@ -33,7 +33,7 @@
 {{- with $config.name -}}
   {{- $titleEl = replace $titleEl `<span class="code-title">` (printf `<span class="code-title" data-name="%s">` .) -}}
 {{- end -}}
-{{- $codeHeader := printf `<div class="code-header language-%s">%s%s%s%s%s%s</div>` $type $titleEl $ellipsisBtn $lineNosBtn $lineWrapBtn $editBtn $copyBtn -}}
+{{- $codeHeader := printf `<div class="code-header language-%s">%s%s%s%s%s%s</div>` $lang $titleEl $ellipsisBtn $lineNosBtn $lineWrapBtn $editBtn $copyBtn -}}
 {{- $wrapper = replaceRE `(<div class="code-wrapper">)` (printf "%s$1" $codeHeader) $wrapper -}}
 
 {{- return $wrapper -}}
diff --git a/layouts/_partials/function/xml-content.html b/layouts/_partials/function/xml-content.html
index 116e7ab0..70543fd5 100644
--- a/layouts/_partials/function/xml-content.html
+++ b/layouts/_partials/function/xml-content.html
@@ -4,25 +4,6 @@
 
   {{- $content = dict "Content" .Content "Ruby" .Ruby "Fraction" .Fraction "Fontawesome" .Fontawesome | partial "function/content.html" }}
 
-  {{- /* Keep only the code content: remove highlight/chroma/lntable wrapper and line numbers */ -}}
-  {{- $content = $content | replaceRE `(?s)<div[^>]*class="highlight"[^>]*>.*?<div[^>]*class="chroma"[^>]*>.*?<table[^>]*class="lntable"[^>]*>.*?(?:<tbody[^>]*>\s*)?<tr[^>]*>\s*<td[^>]*class="lntd"[^>]*>.*?</td>\s*<td[^>]*class="lntd"[^>]*>(.*?)</td>\s*</tr>\s*(?:</tbody>\s*)?.*?</table>.*?</div>\s*</div>` "$1" -}}
-  {{- $codeBlocks := findRE `(?s)<code[^>]*>.*?</code>` $content -}}
-  {{- if gt (len $codeBlocks) 0 -}}
-    {{- range $i, $block := $codeBlocks -}}
-      {{- $newBlock := $block -}}
-      {{- $textMatches := findRE `>([^<]+)<` $block -}}
-      {{- if gt (len $textMatches) 0 -}}
-        {{- range $j, $m := $textMatches -}}
-          {{- $inner := $m | replaceRE `^>([^<]+)<$` "$1" -}}
-          {{- $newInner := replace $inner " " "&ensp;" -}}
-          {{- $newMatch := printf ">%s<" $newInner -}}
-          {{- $newBlock = replace $newBlock $m $newMatch -}}
-        {{- end -}}
-      {{- end -}}
-      {{- $content = replace $content $block $newBlock -}}
-    {{- end -}}
-  {{- end -}}
-
   {{- /* Keep only the first <pre class="mermaid">...</pre> inside a diagram-container */ -}}
   {{- $content = $content | replaceRE `(?s)<div[^>]*class="diagram-container"[^>]*>.*?(<pre[^>]*class="mermaid"[^>]*>.*?</pre>).*?</div>\s*(?:<template[^>]*>.*?</template>\s*)?` "$1" }}
   {{- $mermaidMatches := findRE `(?s)<pre[^>]*class="mermaid"[^>]*>.*?</pre>` $content -}}
diff --git a/layouts/_partials/init/index.html b/layouts/_partials/init/index.html
index 665082d0..02ed4bc0 100644
--- a/layouts/_partials/init/index.html
+++ b/layouts/_partials/init/index.html
@@ -1,4 +1,4 @@
-{{- hugo.Store.Set "version" "v0.4.0-alpha.3-20251219061028-5dcb107d" -}}
+{{- hugo.Store.Set "version" "v0.4.0-alpha.3-20251219073856-c35dce56" -}}
 {{- .Store.Set "this" dict -}}
 
 {{- partial "init/detection-env.html" . -}}