save code

frontend/css/style.css

@@ -118,7 +118,8 @@ body {
 .image-preview img {
     width: 100%;
     height: 100%;
-    object-fit: cover;
+    object-fit: contain;
+    background-color: white;
 }
 
 /* 下一步按钮 */
@@ -255,8 +256,8 @@ body {
 
 .result-preview {
     width: 100%;
-    max-width: 500px;
-    height: 500px;
+    max-width: 400px;
+    height: 400px;
     margin: 0 auto;
     border: 2px solid #eee;
     border-radius: 8px;
@@ -270,7 +271,8 @@ body {
 .result-preview img {
     width: 100%;
     height: 100%;
-    object-fit: cover;
+    object-fit: contain;
+    background-color: white;
 }
 
 /* 操作按钮 */
@@ -372,7 +374,7 @@ body {
     }
 
     .result-preview {
-        height: 400px;
+        height: 250px;
     }
 }