fix(css): 调整产品图片的最大宽度和高度以优化展示效果

public/themes/dist_static/static/css/product.css

@@ -245,8 +245,8 @@ body.is-p-subnav .site-header {
 }
 .p-intro__gallery img {
   width: auto;
-  max-width: 100%;
-  max-height: 100%;
+  max-width: 80%;
+  max-height: 80%;
   height: 100%;
   object-fit: contain;
 }
@@ -560,8 +560,8 @@ body.is-p-subnav .site-header {
   max-height: 35rem;
 }
 .p-download__visual img {
-  width: 100%;
-  height: 100%;
+  width: 80%;
+  height: 80%;
   object-fit: contain;
   display: block;
 }