diff --git a/public/assets/index/css/style.css b/public/assets/index/css/style.css
index 30abfb8..88ad22b 100644
--- a/public/assets/index/css/style.css
+++ b/public/assets/index/css/style.css
@@ -107,17 +107,26 @@ img {
 .tool-search button i {
     color: white;
 }
-
+/* 网站背景 2023-1-3 */
+.bg{
+background: url(../img/bg.png) no-repeat;
+background-size: 100% auto;
+}
 /* header */
+.header{
+    margin-top: 16%;
+}
 .header-content {
     padding: 20px 0;
     display: flex;
     align-items: center;
+    background-color: #fff;
 }
 
 .header-logo {
     width: 521px;
     height: 75px;
+    margin-left: 20px;
 }
 
 .header-text {
@@ -129,6 +138,7 @@ img {
     color: #273981;
     font-weight: bold;
     font-size: 20px;
+    margin-right: 20px;
 }
 
 .header-text-sign {
@@ -644,7 +654,7 @@ img {
     text-align: center;
     background-color: #4864ae;
     display: block;
-    font-size: 16px;
+    font-size: 14px;
     font-weight: bold;
 }
 
@@ -1264,6 +1274,10 @@ img {
     padding-left: 10px;
 }
 
+.new-org-inst-ul li {
+    border-top: dashed 1px #f1f3f8;
+}
+
 .org-inst span {
     line-height: 40px;
     width: 20%;
@@ -1282,12 +1296,12 @@ img {
 .org-inst-ul {
     margin-bottom: 20px;
     padding-left: 10px;
-    border-top: dashed 1px #f1f3f8;
 }
 
 .org-inst-ul li {
     line-height: 50px;
     overflow: hidden;
+    cursor: pointer;
 }
 
 .org-inst-ul li span,
diff --git a/public/assets/index/img/bg.png b/public/assets/index/img/bg.png
new file mode 100644
index 0000000..a67095f
Binary files /dev/null and b/public/assets/index/img/bg.png differ
diff --git a/resources/views/index/index.blade.php b/resources/views/index/index.blade.php
index df2633c..7fc500d 100644
--- a/resources/views/index/index.blade.php
+++ b/resources/views/index/index.blade.php
@@ -2,6 +2,14 @@
 
 @section('title', '黑龙江省科学院智能制造研究所')
 
+@section('css')
+    <!-- <style>
+        html {
+            -webkit-filter: grayscale(100%);
+        }
+    </style> -->
+@endsection
+
 @section('content')
     <!-- special -->
     {{--    <div class="container special-content">--}}
@@ -9,7 +17,7 @@
     {{--    </div>--}}
     <!-- end special -->
     <!-- banner -->
-    <div class="swiper-container" id="swiperBanner">
+    <div class="container swiper-container" id="swiperBanner">
         <div class="swiper-wrapper">
             @if ($center_advert->isNotEmpty())
                 @foreach ($center_advert as $advert)
diff --git a/resources/views/layouts/app.blade.php b/resources/views/layouts/app.blade.php
index 1288d6d..b7be431 100644
--- a/resources/views/layouts/app.blade.php
+++ b/resources/views/layouts/app.blade.php
@@ -12,7 +12,7 @@
     @yield('css')
     @yield('js')
 </head>
-<body>
+<body class="bg">
 <!-- tool -->
 <div class="tool">
     <div class="container tool-content">
diff --git a/resources/views/layouts/header.blade.php b/resources/views/layouts/header.blade.php
index 2a3f3df..65c25f6 100644
--- a/resources/views/layouts/header.blade.php
+++ b/resources/views/layouts/header.blade.php
@@ -1,5 +1,5 @@
 <!-- nav -->
-<nav class="nav">
+<nav class="container nav">
     <div class="container nav-content">
         <ul class="nav-ul" id="nav">
             <li class="nav-ul-li @if (!isset($parent)) show @endif">
