diff --git a/pages/project/background.html b/pages/project/background.html
index 17b0dac..4cd5aa2 100644
--- a/pages/project/background.html
+++ b/pages/project/background.html
@@ -9,7 +9,7 @@
     <link rel="stylesheet" type="text/css" href="../../css/main_cssstyle.css">
     <style>
         header {
-            background: url("../../images/1x/资源\ 10.png");
+            background: url("../../images/B11.jpg");
             min-height: 50%;
             width: 100%;
             background-repeat: no-repeat;
@@ -41,7 +41,7 @@
         <nav id="normal-nav">
             <!---- 常规导航栏Navigation bar (normal) -->
             <div class="logo">
-                <img style="max-height: 22em" id="nav-logo" src="../../static/logo.png"
+                <img id="nav-logo" src="../../images/IDEC图标.png"
                     alt="This is our logo, but if you click it, you will return home">
             </div>
             <div class="chapters">
@@ -135,8 +135,9 @@
         </nav>
         <!------------ 页面标题PAGE TITLE -------------------->
         <div class="page-title">
-            <div class="page-title-content">
-
+            <div class="page-title-content" style="margin-top: 5%;">
+                <h1>BACKGROUND</h1>
+                <!---Page title -->
             </div>
         </div>
     </header>
diff --git a/pages/project/design.html b/pages/project/design.html
index efcfbbe..070dd20 100644
--- a/pages/project/design.html
+++ b/pages/project/design.html
@@ -9,7 +9,7 @@
 	<link rel="stylesheet" type="text/css" href="../../css/main_cssstyle.css">
 	<style>
 		header {
-			background: url("../../images/1x/资源\ 9.png");
+			background: url("../../images/B11.jpg");
 			min-height: 50%;
 			width: 100%;
 			background-repeat: no-repeat;
@@ -47,12 +47,12 @@
 		<nav id="normal-nav">
 			<!---- 常规导航栏Navigation bar (normal) -->
 			<div class="logo">
-				<img style="max-height: 22em" id="nav-logo" src="../../images/IDEC图标.png"
+				<img id="nav-logo" src="../../images/IDEC图标.png"
 					alt="This is our logo, but if you click it, you will return home">
 			</div>
 			<div class="chapters">
 				<div class="dropdown-menu cool-link">
-					<a class="chapter-nav " href="../../index.html">
+					<a class="chapter-nav " href="https://idec-teams.github.io/2023_NEFU_China/">
 						<div class="chapter-content">
 							<div class="chapter-title active ">
 								Home
@@ -141,8 +141,8 @@
 		</nav>
 		<!------------ 页面标题PAGE TITLE -------------------->
 		<div class="page-title">
-			<div class="page-title-content">
-
+			<div class="page-title-content" style="margin-top: 5%;">
+				<h1>DESIGN</h1>
 				<!---Page title -->
 			</div>
 		</div>
diff --git a/pages/project/protocol.html b/pages/project/protocol.html
index 09c2db1..e339d9a 100644
--- a/pages/project/protocol.html
+++ b/pages/project/protocol.html
@@ -39,7 +39,7 @@
 
 
 		header {
-			background: url("../../images/1x/资源\ 14.png");
+			background: url("../../images/B11.jpg");
 			min-height: 50%;
 			object-fit: cover;
 			background-repeat: no-repeat;
@@ -75,12 +75,12 @@
 		<nav id="normal-nav">
 			<!---- 常规导航栏Navigation bar (normal) -->
 			<div class="logo">
-				<img style="max-height: 22em" id="nav-logo" src="../../images/1x/资源 14.png"
+				<img id="nav-logo" src="../../images/IDEC图标.png"
 					alt="This is our logo, but if you click it, you will return home">
 			</div>
 			<div class="chapters">
 				<div class="dropdown-menu cool-link">
-					<a class="chapter-nav " href="../../static/home.html">
+					<a class="chapter-nav " href="https://idec-teams.github.io/2023_NEFU_China/">
 						<div class="chapter-content">
 							<div class="chapter-title active ">
 								Home
@@ -169,8 +169,8 @@
 		</nav>
 		<!------------ 页面标题PAGE TITLE -------------------->
 		<div class="page-title">
-			<div class="page-title-content">
-				<!-- <h1>PROTOCOL</h1> -->
+			<div class="page-title-content" style="margin-top: 5%;">
+				<h1>PROTOCOL</h1>
 				<!---Page title -->
 			</div>
 		</div>
diff --git a/pages/project/results.html b/pages/project/results.html
index 39e7bbb..c650d98 100644
--- a/pages/project/results.html
+++ b/pages/project/results.html
@@ -9,7 +9,7 @@
 	<link rel="stylesheet" type="text/css" href="../../css/main_cssstyle.css">
 	<style>
 		header {
-			background: url("../../images/1x/资源\ 15.png");
+			background: url("../../images/B11.jpg");
 			min-height: 50%;
 			width: 100%;
 			background-repeat: no-repeat;
@@ -51,12 +51,12 @@
 		<nav id="normal-nav">
 			<!---- 常规导航栏Navigation bar (normal) -->
 			<div class="logo">
-				<img style="max-height: 22em" id="nav-logo" src="../../static/logo.png"
+				<img id="nav-logo" src="../../images/IDEC图标.png"
 					alt="This is our logo, but if you click it, you will return home">
 			</div>
 			<div class="chapters">
 				<div class="dropdown-menu cool-link">
-					<a class="chapter-nav " href="../../static/home.html">
+					<a class="chapter-nav " href="https://idec-teams.github.io/2023_NEFU_China/">
 						<div class="chapter-content">
 							<div class="chapter-title active ">
 								Home
@@ -127,7 +127,7 @@
 						</div>
 					</a>
 					<div class="dropdown-content">
-						<a href="../documentation/experiments.html" class="dropdown-page cool-link2">
+						<a href="../documentation/experiment.html" class="dropdown-page cool-link2">
 							Experiments
 						</a>
 						<a href="../documentation/notebook.html" class="dropdown-page cool-link2">
@@ -145,8 +145,8 @@
 		</nav>
 		<!------------ 页面标题PAGE TITLE -------------------->
 		<div class="page-title">
-			<div class="page-title-content">
-				<!-- <h1>RESULTS</h1> -->
+			<div class="page-title-content" style="margin-top: 5%;">
+				<h1>RESULT</h1>
 				<!---Page title -->
 			</div>
 		</div>