diff --git a/layouts/partials/media/process-image.html b/layouts/partials/media/process-image.html
index 25312609..119d0c76 100644
--- a/layouts/partials/media/process-image.html
+++ b/layouts/partials/media/process-image.html
@@ -24,6 +24,8 @@
     {{- $result = $image.Crop $options -}}
   {{- else if eq $action "Resize" -}}
     {{- $result = $image.Resize $options -}}
+  {{- else if eq $action "Fit" -}}
+    {{- $result = $image.Fit $options -}}
   {{- else -}}
     {{- errorf "media/process-image.html: unsupported image action %q for %q" $action $image.Name -}}
   {{- end -}}
diff --git a/themes/2026/assets/css/article-header.css b/themes/2026/assets/css/article-header.css
index 605ccf4e..c6aab611 100644
--- a/themes/2026/assets/css/article-header.css
+++ b/themes/2026/assets/css/article-header.css
@@ -56,6 +56,8 @@
 
 .article-header .article-cover {
     margin-top: 0;
+    display: flex;
+    justify-content: flex-end;
 }
 
 .article-header .article-cover > a {
@@ -63,8 +65,9 @@
 }
 
 .article-header .article-cover img {
-    width: 100%;
+    width: auto;
     height: auto;
+    max-height: 90vh;
 }
 
 .article-header .article-meta {
diff --git a/themes/2026/layouts/_partials/article-header.html b/themes/2026/layouts/_partials/article-header.html
index e2cda952..0bd817d4 100644
--- a/themes/2026/layouts/_partials/article-header.html
+++ b/themes/2026/layouts/_partials/article-header.html
@@ -106,14 +106,10 @@
   {{- if $coverImage -}}
     {{- $coverDisplay = $coverImage -}}
     {{- if ne $coverDisplay.MediaType.SubType "svg" -}}
-      {{- $coverWidth := $coverDisplay.Width -}}
-      {{- if gt $coverDisplay.Width 1480 -}}
-        {{- $coverWidth = 1480 -}}
-      {{- end -}}
       {{- $coverDisplay = partial "media/process-image.html" (dict
         "image" $coverImage
-        "action" "Resize"
-        "spec" (printf "%dx" $coverWidth)
+        "action" "Fit"
+        "spec" "1480x900"
       ) -}}
     {{- end -}}
   {{- end -}}