diff --git a/miniapp/pages/index/index.wxml b/miniapp/pages/index/index.wxml
index fbeaaeb..c8fb2cb 100644
--- a/miniapp/pages/index/index.wxml
+++ b/miniapp/pages/index/index.wxml
@@ -23,7 +23,7 @@
 
   <view class="preview-panel">
     <view class="preview-head">
-      <image class="preview-title" src="../../assets/icons/sankeyview.svg" mode="widthFix" />
+      <image class="preview-title" src="../../assets/icons/sankeyview.svg" mode="aspectFit" />
 
       <view class="preview-controls">
         <view class="control-item">
diff --git a/miniapp/pages/index/index.wxss b/miniapp/pages/index/index.wxss
index 13de006..e7d333d 100644
--- a/miniapp/pages/index/index.wxss
+++ b/miniapp/pages/index/index.wxss
@@ -120,8 +120,8 @@
 }
 
 .preview-title {
-  width: 166px;
-  height: auto;
+  width: 78px;
+  height: 14px;
   flex-shrink: 0;
 }