diff --git a/conf.d/frontend.dev.conf b/conf.d/frontend.dev.conf
new file mode 100644
index 0000000..8e3282e
--- /dev/null
+++ b/conf.d/frontend.dev.conf
@@ -0,0 +1,12 @@
+        # ホスト名を変数経由にすると起動時の upstream 解決を避けられる（本番モード共存用）
+        location / {
+            set $vite_upstream frontend:5173;
+            proxy_pass http://$vite_upstream;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection $connection_upgrade;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
diff --git a/conf.d/frontend.product.conf b/conf.d/frontend.product.conf
new file mode 100644
index 0000000..fb65db9
--- /dev/null
+++ b/conf.d/frontend.product.conf
@@ -0,0 +1,5 @@
+        location / {
+            root /var/www/html;
+            index index.html;
+            try_files $uri $uri/ /index.html;
+        }