diff --git a/assets/css/style.css b/assets/css/style.css
index 01ac7a1..ecde5e2 100644
--- a/assets/css/style.css
+++ b/assets/css/style.css
@@ -43,11 +43,11 @@ body {
     line-height: 1.6;
 }
 
-/* 首頁 Hero：滿版 cover（勿用 108%／vw 限高，否則上下留黑） */
+/* 首頁 Hero：隨寬度 16:9 等比縮放（圖已更新，不需 108% 放大） */
 header#origin {
     width: 100%;
-    height: 100dvh;
-    min-height: 100dvh;
+    height: min(56.25vw, 100dvh);
+    min-height: 0;
     background-image: url('../images/header.jpg');
     background-position: center center;
     background-repeat: no-repeat;
diff --git a/assets/css/tablet.css b/assets/css/tablet.css
index 6700fa7..211660b 100644
--- a/assets/css/tablet.css
+++ b/assets/css/tablet.css
@@ -64,7 +64,7 @@
         gap: clamp(12px, 2vw, 20px);
     }
 
-    header {
+    header.inner-page-header {
         background-size: cover;
         background-position: center center;
     }
diff --git a/assets/images/header.jpg b/assets/images/header.jpg
index 1b45ee2..6678dc8 100644
Binary files a/assets/images/header.jpg and b/assets/images/header.jpg differ