diff --git a/public/static/index/mobile/css/topic_nas_download.css b/public/static/index/mobile/css/topic_nas_download.css
index 7d83b073..2df89bad 100644
--- a/public/static/index/mobile/css/topic_nas_download.css
+++ b/public/static/index/mobile/css/topic_nas_download.css
@@ -120,35 +120,21 @@
     width: 50%;
     height: 50%;
 }
-.narsDowloadPc .nDtopCtMian .nDtopIt2 .nDitImg
-.narswljshow .nDtopIt2 .nDitImg .dwbt {
-    padding: 0.5rem 1.8rem;
-    background: #A1A7BF;
-    border-radius: 1.85rem;
-    color: #fff;
-    font-size: 0.85rem;
-    cursor: pointer;
-    margin-bottom: 14%;
-}
 
-.narswljshow .nDtopIt2 .nDitImg .dwbtactive {
-    background: #004CFA;
-}
-
-.narswljshow .nDtopIt2 .nDitImg .yy_name {
+.narssbshow .nDtopIt2 .nDitImg .yy_name {
     font-size: 1rem;
     padding-bottom: 10px;
     padding-top: 5px;
     color: #000;
     font-weight: bold;
 }
-.narswljshow .nDtopIt2 .nDitImg .nDitImg img {
+.narssbshow .nDtopIt2 .nDitImg .nDitImg:has(+div.yy_name) img {
     width: 3.25rem;
     height: 3.25rem;
     padding: 1.25rem;
     padding-bottom: 0.5rem;
 }
-.narswljshow .nDtopIt2 .nDitImg .dwbt {
+.narssbshow .nDtopIt2 .nDitImg .dwbt {
     padding: 0.5rem 1.8rem;
     background: #A1A7BF;
     border-radius: 1.85rem;
@@ -156,4 +142,11 @@
     font-size: 0.85rem;
     cursor: pointer;
     margin-bottom: 14%;
+}
+
+.narswljshow .nDtopIt2 .nDitImg .nDitImg img {
+    width: 3.25rem;
+    height: 3.25rem;
+    padding: 1.25rem;
+    padding-bottom: 0.5rem;
 }
\ No newline at end of file