diff --git a/src/comp/desktopNav.html b/src/comp/desktopNav.html
index 43f9d7c..f51fbb9 100644
--- a/src/comp/desktopNav.html
+++ b/src/comp/desktopNav.html
@@ -12,20 +12,20 @@
       <li><a href="./roadmap.html" id="nav_roadmap">Roadmap</a></li>
       <li class="dropdown">
         <a href="javascript:void(0)" id="nav_activity" class="dropdown-toggle">
-          Activity
+          Recruit
           <span>
             <svg t="1666610389853" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="1853" width="16" height="16"><path d="M859.8528 292.9664H164.1472c-40.1408 0-60.3136 48.5376-31.8464 77.0048L480.1536 717.824c17.6128 17.6128 46.1824 17.6128 63.7952 0l347.8528-347.8528c28.3648-28.4672 8.2944-77.0048-31.9488-77.0048z" p-id="1854" fill="#ffffff"></path></svg>
           </span>
         </a>
         <ul class="dropdown-menu">
           <li>
-            <a href="./recruit.html" id="sub_act">Activity1</a>
+            <a href="./recruit.html" id="sub_act0">Introduction</a>
           </li>
           <li>
-            <a href="./recruit.html" id="sub_act1">Activity1</a>
+            <a href="./ambassadors.html" id="sub_act1">Ambassador</a>
           </li>
           <li>
-            <a href="./recruit.html" id="sub_ac2">Activity1</a>
+            <a href="./join.html" id="sub_act2">Join us</a>
           </li>
         </ul>
       </li>
diff --git a/src/desktop/ambassadorinfo.html b/src/desktop/ambassadorinfo.html
index dfc92bd..5fef624 100644
--- a/src/desktop/ambassadorinfo.html
+++ b/src/desktop/ambassadorinfo.html
@@ -11,6 +11,7 @@
 		<section class="main">
 			<section class="header">
 				<img src="img/applyother/amt.jpg" width="100%" />
+				<script>cur = 'activity'; sub='act1'</script>
 				<%- include('../comp/desktopNav.html') %>
 			</section>
 			<section class="main-con amb-con">
diff --git a/src/desktop/ambassadors.html b/src/desktop/ambassadors.html
index cc83066..1216694 100644
--- a/src/desktop/ambassadors.html
+++ b/src/desktop/ambassadors.html
@@ -11,6 +11,7 @@
 		<section class="main">
 			<section class="header">
 				<img src="img/applyother/amt.jpg" width="100%" />
+				<script>cur = 'activity'; sub='act1'</script>
 				<%- include('../comp/desktopNav.html') %>
 			</section>
 			<section class="main-con amb-con">
diff --git a/src/desktop/css/main.css b/src/desktop/css/main.css
index 9b90c42..d4c6e7f 100755
--- a/src/desktop/css/main.css
+++ b/src/desktop/css/main.css
@@ -105,6 +105,10 @@ body {
 	box-shadow: 0 6px 12px rgb(0 0 0 / 18%);
 	flex-wrap: wrap!important;
 }
+.dropdown-menu li a{
+	min-width: 160px;
+	text-align: left;
+}
 .open .dropdown-menu {
 	display: flex;
 }
diff --git a/src/desktop/join.html b/src/desktop/join.html
index f71c6d9..c9c9b30 100644
--- a/src/desktop/join.html
+++ b/src/desktop/join.html
@@ -12,6 +12,7 @@
 		<section class="main">
 			<section class="header">
 				<img src="img/applyother/a1.png" width="100%" />
+				<script>cur = 'activity'; sub='act2'</script>
 				<%- include('../comp/desktopNav.html') %>
 			</section>
 			<section class="main-con">
diff --git a/src/desktop/recruit.html b/src/desktop/recruit.html
index ef517c8..b48e5e1 100644
--- a/src/desktop/recruit.html
+++ b/src/desktop/recruit.html
@@ -11,7 +11,7 @@
 		<section class="main">
 			<section class="header">
 				<img src="img/applyother/a3.png" width="100%" />
-				<script>cur = 'activity'; sub='act1'</script>
+				<script>cur = 'activity'; sub='act0'</script>
 				<%- include('../comp/desktopNav.html') %>
 			</section>
 			<section class="main-con">