diff --git a/404.html b/404.html
index 248c580..2892c2d 100644
--- a/404.html
+++ b/404.html
@@ -198,6 +198,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -227,7 +232,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -267,8 +272,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/card/ba/index.html b/card/ba/index.html
index 5bd9189..3cedd87 100644
--- a/card/ba/index.html
+++ b/card/ba/index.html
@@ -244,6 +244,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -291,7 +296,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -331,8 +336,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/card/keben/index.html b/card/keben/index.html
index f584626..f7d698f 100644
--- a/card/keben/index.html
+++ b/card/keben/index.html
@@ -244,6 +244,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -280,7 +285,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -320,8 +325,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/card/qimo/index.html b/card/qimo/index.html
index 884b09b..3f78a23 100644
--- a/card/qimo/index.html
+++ b/card/qimo/index.html
@@ -244,6 +244,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -280,7 +285,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -320,8 +325,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/card/xuanzeti/index.html b/card/xuanzeti/index.html
index 4ed86b1..9438141 100644
--- a/card/xuanzeti/index.html
+++ b/card/xuanzeti/index.html
@@ -244,6 +244,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -280,7 +285,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -320,8 +325,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/categories/index.html b/categories/index.html
index 0cbc086..df2fb9c 100644
--- a/categories/index.html
+++ b/categories/index.html
@@ -199,6 +199,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -217,7 +222,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -257,8 +262,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/index.html b/index.html
index d01a1f9..f4b9513 100644
--- a/index.html
+++ b/index.html
@@ -214,6 +214,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -667,7 +672,7 @@ document.querySelector('.wrapper').addEventListener('mouseleave', function() {
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -707,8 +712,8 @@ document.querySelector('.wrapper').addEventListener('mouseleave', function() {
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/intro/index.html b/intro/index.html
new file mode 100644
index 0000000..9293c50
--- /dev/null
+++ b/intro/index.html
@@ -0,0 +1,732 @@
+<!DOCTYPE html>
+<html lang="en" dir="auto">
+
+<head><meta charset="utf-8">
+<meta http-equiv="X-UA-Compatible" content="IE=edge">
+<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+<meta name="robots" content="index, follow">
+<title>关于NEU小站 | NEU小站</title>
+<meta name="keywords" content="">
+<meta name="description" content="关于NEU小站 - NEU小站">
+<meta name="author" content="
+
+
+
+  
+  
+  
+  
+    
+    
+    
+        
+            
+            V
+        
+    
+    
+        
+            
+            V
+        
+    
+    
+        
+        
+    
+  ">
+<link rel="canonical" href="https://xn--xhq44jb2fzpc.com/intro/">
+
+<link rel="stylesheet" href="/css/custom.css"> 
+
+<link rel="stylesheet" href="/css/dl.css">
+<link crossorigin="anonymous" href="/assets/css/stylesheet.css" rel="preload stylesheet" as="style">
+<link rel="icon" href="https://xn--xhq44jb2fzpc.com/icons/favicon.ico">
+<link rel="icon" type="image/png" sizes="16x16" href="https://xn--xhq44jb2fzpc.com/icons/favicon-16x16.png">
+<link rel="icon" type="image/png" sizes="32x32" href="https://xn--xhq44jb2fzpc.com/icons/favicon-32x32.png">
+<link rel="apple-touch-icon" href="https://xn--xhq44jb2fzpc.com/icons/apple-touch-icon.png">
+<link rel="mask-icon" href="https://xn--xhq44jb2fzpc.com/safari-pinned-tab.svg">
+<meta name="theme-color" content="#2e2e33">
+<meta name="msapplication-TileColor" content="#2e2e33">
+<link rel="alternate" type="application/rss+xml" href="https://xn--xhq44jb2fzpc.com/intro/index.xml">
+<link rel="alternate" hreflang="en" href="https://xn--xhq44jb2fzpc.com/intro/">
+<noscript>
+    <style>
+        #theme-toggle,
+        .top-link {
+            display: none;
+        }
+
+    </style>
+    <style>
+        @media (prefers-color-scheme: dark) {
+            :root {
+                --theme: rgb(29, 30, 32);
+                --entry: rgb(46, 46, 51);
+                --primary: rgb(218, 218, 219);
+                --secondary: rgb(155, 156, 157);
+                --tertiary: rgb(65, 66, 68);
+                --content: rgb(196, 196, 197);
+                --code-block-bg: rgb(46, 46, 51);
+                --code-bg: rgb(55, 56, 62);
+                --border: rgb(51, 51, 51);
+            }
+
+            .list {
+                background: var(--theme);
+            }
+
+            .list:not(.dark)::-webkit-scrollbar-track {
+                background: 0 0;
+            }
+
+            .list:not(.dark)::-webkit-scrollbar-thumb {
+                border-color: var(--theme);
+            }
+        }
+
+    </style>
+</noscript>
+  
+
+<meta property="og:title" content="关于NEU小站" />
+<meta property="og:description" content="" />
+<meta property="og:type" content="website" />
+<meta property="og:url" content="https://xn--xhq44jb2fzpc.com/intro/" />
+
+<meta name="twitter:card" content="summary"/>
+<meta name="twitter:title" content="关于NEU小站"/>
+<meta name="twitter:description" content=""/>
+
+
+<script type="application/ld+json">
+{
+  "@context": "https://schema.org",
+  "@type": "BreadcrumbList",
+  "itemListElement": [
+    {
+      "@type": "ListItem",
+      "position":  1 ,
+      "name": "关于NEU小站",
+      "item": "https://xn--xhq44jb2fzpc.com/intro/"
+    }
+  ]
+}
+</script>
+    
+    <link rel="stylesheet" href="/css/custom.css">
+</head>
+
+<body class="list" id="top">
+<script>
+    if (localStorage.getItem("pref-theme") === "dark") {
+        document.body.classList.add('dark');
+    } else if (localStorage.getItem("pref-theme") === "light") {
+        document.body.classList.remove('dark')
+    } else if (window.matchMedia('(prefers-color-scheme: dark)').matches) {
+        document.body.classList.add('dark');
+    }
+
+</script>
+
+<header class="header">
+    <nav class="nav">
+        <div class="logo">
+            <a href="https://xn--xhq44jb2fzpc.com/" accesskey="h" title="NEU小站 (Alt + H)">NEU小站</a>
+            <div class="logo-switches">
+                <button id="theme-toggle" accesskey="t" title="(Alt + T)">
+                    <svg id="moon" xmlns="http://www.w3.org/2000/svg" width="24" height="18" viewBox="0 0 24 24"
+                        fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"
+                        stroke-linejoin="round">
+                        <path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"></path>
+                    </svg>
+                    <svg id="sun" xmlns="http://www.w3.org/2000/svg" width="24" height="18" viewBox="0 0 24 24"
+                        fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"
+                        stroke-linejoin="round">
+                        <circle cx="12" cy="12" r="5"></circle>
+                        <line x1="12" y1="1" x2="12" y2="3"></line>
+                        <line x1="12" y1="21" x2="12" y2="23"></line>
+                        <line x1="4.22" y1="4.22" x2="5.64" y2="5.64"></line>
+                        <line x1="18.36" y1="18.36" x2="19.78" y2="19.78"></line>
+                        <line x1="1" y1="12" x2="3" y2="12"></line>
+                        <line x1="21" y1="12" x2="23" y2="12"></line>
+                        <line x1="4.22" y1="19.78" x2="5.64" y2="18.36"></line>
+                        <line x1="18.36" y1="5.64" x2="19.78" y2="4.22"></line>
+                    </svg>
+                </button>
+            </div>
+        </div>
+        <ul id="menu">
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/" title="主页">
+                    <span>主页</span>
+                </a>
+            </li>
+            <li>
+                <a href="https://course.%e4%b8%9c%e5%8c%97%e5%a4%a7%e5%ad%a6.com" title="课程评分"target="_blank">
+                    <span>课程评分</span>&nbsp;
+                    <svg fill="none" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round"
+                        stroke-linejoin="round" stroke-width="2.5" viewBox="0 0 24 24" height="12" width="12">
+                        <path d="M18 13v6a2 2 0 01-2 2H5a2 2 0 01-2-2V8a2 2 0 012-2h6"></path>
+                        <path d="M15 3h6v6"></path>
+                        <path d="M10 14L21 3"></path>
+                    </svg>
+                </a>
+            </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/strategy/" title="攻略指南">
+                    <span>攻略指南</span>
+                </a>
+            </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/rapidlinks/%E5%BF%AB%E9%80%9F%E9%93%BE%E6%8E%A5/" title="快速链接">
+                    <span>快速链接</span>
+                </a>
+            </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/resources/" title="资源共享">
+                    <span>资源共享</span>
+                </a>
+            </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/search/" title="搜索">
+                    <span>搜索</span>
+                </a>
+            </li>
+            <li>
+                <a href="https://f.wps.cn/g/QuaZnovL/" title="意见反馈"target="_blank">
+                    <span>意见反馈</span>&nbsp;
+                    <svg fill="none" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round"
+                        stroke-linejoin="round" stroke-width="2.5" viewBox="0 0 24 24" height="12" width="12">
+                        <path d="M18 13v6a2 2 0 01-2 2H5a2 2 0 01-2-2V8a2 2 0 012-2h6"></path>
+                        <path d="M15 3h6v6"></path>
+                        <path d="M10 14L21 3"></path>
+                    </svg>
+                </a>
+            </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/submission/" title="用户中心">
+                    <span>用户中心</span>
+                </a>
+            </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/log/" title="更新日志">
+                    <span>更新日志</span>
+                </a>
+            </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span class="active">关于</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+</header>
+
+<main class="main">
+
+ 
+ <script src="https://download.xn--xhq44jb2fzpc.com/intro/vue%402.js"></script>
+
+ 
+ <link rel="stylesheet" href="https://download.xn--xhq44jb2fzpc.com/intro/css/font-awesome-6.0.0-beta3-all.min.css">
+
+ <style>
+    
+   .container {
+  display: flex;
+  flex-direction: column;
+   
+  align-items: center;
+  text-align: center;
+  margin-top: 20px;
+}
+
+ 
+.content-box {
+    display: flex;
+    align-items: center;
+}
+
+ 
+.left-side {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    margin-right: 20px;
+}
+
+.qr-box {
+    width: 100px;
+    height: 100px;
+    border-radius: 4%;
+    overflow: hidden;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    background-color: #e0e0e0;
+}
+
+.qr-image {
+    width: 100%;
+    height: 100%;
+    object-fit: cover;
+}
+
+.contact-text {
+    margin-top: 10px;
+    font-size: 14px;
+    color: #333;
+}
+
+ 
+.vertical-line {
+    width: 1px;
+    height: 300px;
+    background-color: #ccc;
+    margin: 0 20px;
+}
+
+ 
+.right-side {
+    flex: 1;
+}
+
+.right-side p {
+    margin: 5px;
+    font-size: 16px;
+    color: #333;
+}
+
+.navbar {
+ display: flex;
+ justify-content: center;
+ gap: 20px;
+}
+
+ 
+.dark .info-box {
+    background-color: #2c2c2c;
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
+}
+
+ 
+.dark .info-box .right-side p, 
+.dark .info-box .contact-text {
+    color: #ddd;  
+}
+
+ 
+.dark .info-box .qr-box {
+    background-color: #444;  
+}
+
+ 
+.dark .info-box .vertical-line {
+    background-color: #555;  
+}
+
+
+.icon-button {
+ display: flex;
+ align-items: center;
+ justify-content: center;
+ background: linear-gradient(145deg, #ffffff, #e0e0e0);
+ box-shadow: 3px 3px 6px #bebebe, -3px -3px 6px #ffffff;
+ border: none;
+ border-radius: 30px;
+ padding: 10px 20px;
+ cursor: pointer;
+ transition: width 0.4s, background 0.3s, box-shadow 0.3s;
+ width: 60px;
+ height: 60px;
+ overflow: hidden;
+ position: relative;
+}
+
+.icon-button.expanded {
+ width: 180px;  
+}
+
+.icon-button i {
+ font-size: 24px;
+ color: #555;
+ transition: transform 0.3s;
+}
+
+.icon-button span {
+ margin-left: 10px;
+ white-space: nowrap;
+ font-size: 16px;
+ color: #333;
+}
+
+.icon-button:hover {
+ background: linear-gradient(145deg, #f0f0f0, #d4d4d4);
+ box-shadow: 3px 3px 10px #a8a8a8, -3px -3px 10px #ffffff;
+}
+
+.icon-button:active {
+ transform: scale(0.95);
+ box-shadow: inset 3px 3px 6px #bebebe, inset -3px -3px 6px #ffffff;
+}
+
+.info-box {
+ margin-top: 30px;
+ padding: 20px;
+ background-color: #f9f9f9;
+ border-radius: 10px;
+ box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
+ width: 100%;
+ text-align: left;  
+ transition: opacity 0.5s ease-in-out;
+}
+
+.fade-slide-enter-active, .fade-slide-leave-active {
+ transition: all 0.6s ease;
+}
+
+.fade-slide-enter, .fade-slide-leave-to {
+ transform: translateY(20px);
+ opacity: 0;
+}
+
+ 
+.dark .container {
+  background-color: #1c1c1e;
+  color: #f0f0f0;
+}
+
+.dark .icon-button {
+  background: linear-gradient(145deg, #2c2c2e, #3a3a3c);
+  box-shadow: 3px 3px 6px #1a1a1c, -3px -3px 6px #404040;
+}
+
+.dark .icon-button i {
+  color: #d1d1d1;
+}
+
+.dark .icon-button span {
+  color: #e0e0e0;
+}
+
+.dark .qrcode-text{
+    color: #e0e0e0;
+}
+
+.dark .icon-button:hover {
+  background: linear-gradient(145deg, #2f2f31, #444446);
+  box-shadow: 3px 3px 10px #151517, -3px -3px 10px #404040;
+}
+
+.dark .icon-button:active {
+  transform: scale(0.95);
+  box-shadow: inset 3px 3px 6px #0f0f10, inset -3px -3px 6px #3a3a3c;
+}
+
+.dark .info-box {
+  background-color: #2c2c2e;
+  color: #f0f0f0;
+  box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.5);
+}
+
+.donate-content {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+}
+
+.donate-qr-codes {
+  display: flex;
+  justify-content: space-around;
+  margin-top: 15px;
+}
+
+.donate-qr-box {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  margin: 10px;
+}
+
+.donate-qr-image {
+  width: 100px;
+  height: 100px;
+}
+
+.donate-qr-box p {
+  margin-top: 5px;
+  font-size: 14px;
+  color: #333;
+}
+
+p.donate-text{
+    font-size: 16px;
+    margin: 5px;
+    align-self: flex-start;  
+}
+
+.dark .donate-text{
+    color: #e0e0e0;
+}
+ </style>
+</head>
+<body>
+ <div id="app">
+     <div class="container">
+       <div class="navbar">
+
+       <button class="icon-button" @click="toggleInfo('user')" :class="{ expanded: showUser }">
+           <i class="fas fa-user-circle"></i>
+           <span v-if="showUser">关于NEU小站</span>
+       </button>
+
+       <button class="icon-button" @click="toggleInfo('donate')" :class="{ expanded: showDonate }">
+           <i class="fas fa-hands-helping"></i>
+           <span v-if="showDonate">捐助我们</span>
+       </button>
+       </div>
+
+       <transition name="fade-slide">
+        <div class="info-box" v-if="showUser || showDonate">
+            <div class="content-box" v-if="showUser">
+              <div class="left-side">
+                <div class="qr-box">
+                  <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" class="avatar-image">
+                </div>
+                <p class="contact-text">网站作者</p>
+              </div>
+              <div class="vertical-line"></div>
+              <div class="right-side">
+                <p>网站作者也是NEU在读学生，我希望NEU小站的存在能弥补一下校内资源共享的极度空缺，能够给大家的学习帮上忙~有BUG或功能建议，欢迎与我交流！同时感谢且欢迎各位同学投稿资源！</p>
+                <p>顺便提一嘴：<strong>NEU小站承诺永久免费提供服务</strong>，网站设置“东币系统”是为了激励投稿，以及一定程度上减少无意义的下载，因为下行流量费真的很高qwq</p>
+                <p>如有同学愿意加入开发，欢迎联系我！！网站用到的技术栈：</p>
+                <p>前端：Vue.js、Hugo（Go语言）</p>
+                <p>后端：Gin（Go语言）、MySQL</p>
+                <p>文件分发系统：阿里云OSS SDK、阿里云CDN SDK</p>
+                <p>课程评分系统：Vue.js（前端）、Node.js（后端）、MySQL</p>
+              </div>
+            </div>
+            
+            
+            <div v-if="showDonate" class="donate-content">
+              <p class="donate-text">网站使用阿里云OSS和CDN服务来保障文件的高可用性和高速传输，每月都产生了较高的下行流量费（下行流量指网站文件流向用户产生的流量）以及CDN加速回源流量费。您为本站捐赠的所有费用都将用于维护网站服务！</p>
+              <p class="donate-text">请您在捐助时备注NEU小站，感谢您的支持！</p>
+              <div class="donate-qr-codes">
+                <div class="donate-qr-box">
+                  <img src="https://download.xn--xhq44jb2fzpc.com/intro/wechat.png" alt="WeChat QR Code" class="donate-qr-image">
+                  <p class="qrcode-text">微信</p>
+                </div>
+                <div class="donate-qr-box">
+                  <img src="https://download.xn--xhq44jb2fzpc.com/intro/alipay.jpg" alt="Alipay QR Code" class="donate-qr-image">
+                  <p class="qrcode-text">支付宝</p>
+                </div>
+              </div>
+            </div>
+          </div>
+          
+          
+       </transition>
+    </div>
+ <div>
+
+ 
+ <script>
+   new Vue({
+     el: '#app',
+     data: {
+       showUser: true,   
+       showDonate: false 
+     },
+     methods: {
+       toggleInfo(type) {
+         if (type === 'user') {
+           this.showUser = true;
+           this.showDonate = false;
+         } else if (type === 'donate') {
+           this.showDonate = true;
+           this.showUser = false;
+         }
+       }
+     }
+   });
+ </script>
+
+
+    </main>
+    
+<footer class="footer">
+        <span>&copy; 2024 <a href="https://xn--xhq44jb2fzpc.com/">NEU小站</a></span> · 
+        <span id="ember-container">
+            联系网站管理员
+            <div id="qr-code" class="hidden">
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
+            </div>
+        </span>
+        
+        <div>
+            <span style="white-space: nowrap;">
+                <img src="https://beian.mps.gov.cn/web/assets/logo01.6189a29f.png" alt="公安标识" style="vertical-align: middle; height: 16px; display: inline-block;">
+                <a href="https://beian.mps.gov.cn/" target="_blank">
+                    赣公网安备36090202000259号</a>
+                &nbsp;|&nbsp;
+                <a href="https://beian.miit.gov.cn/" target="_blank">赣ICP备2024039267号-1</a>
+            </span>
+        </div>
+
+    
+    
+</footer>
+<a href="#top" aria-label="go to top" title="Go to Top (Alt + G)" class="top-link" id="top-link" accesskey="g">
+    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 12 6" fill="currentColor">
+        <path d="M12 6H0l6-6z" />
+    </svg>
+</a>
+    
+<style>
+    #ember-container {
+        position: relative;
+        display: inline-block;
+        cursor: pointer;
+    }
+    
+    #qr-code {
+        position: absolute;
+        bottom: 100%;
+        left: 50%;
+        transform: translateX(-50%);
+        padding: 10px;
+        background-color: #fff;
+        border: 1px solid #ccc;
+        border-radius: 10px;
+        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+        width: 170px;  
+        height: 170px;  
+        display: flex;
+        justify-content: center;
+        align-items: center;
+        opacity: 0;
+        visibility: hidden;
+        transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
+    }
+    
+    #qr-code img {
+        max-width: 100%;  
+        max-height: 100%;  
+        border-radius: 10px;
+    }
+    
+    #ember-container:hover #qr-code,
+    #ember-container:focus #qr-code {
+        opacity: 1;
+        visibility: visible;
+    }
+    </style>
+    
+
+
+<script>
+    let menu = document.getElementById('menu')
+    if (menu) {
+        menu.scrollLeft = localStorage.getItem("menu-scroll-position");
+        menu.onscroll = function () {
+            localStorage.setItem("menu-scroll-position", menu.scrollLeft);
+        }
+    }
+
+    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
+        anchor.addEventListener("click", function (e) {
+            e.preventDefault();
+            var id = this.getAttribute("href").substr(1);
+            if (!window.matchMedia('(prefers-reduced-motion: reduce)').matches) {
+                document.querySelector(`[id='${decodeURIComponent(id)}']`).scrollIntoView({
+                    behavior: "smooth"
+                });
+            } else {
+                document.querySelector(`[id='${decodeURIComponent(id)}']`).scrollIntoView();
+            }
+            if (id === "top") {
+                history.replaceState(null, null, " ");
+            } else {
+                history.pushState(null, null, `#${id}`);
+            }
+        });
+    });
+
+    document.addEventListener('DOMContentLoaded', function() {
+        var emberContainer = document.getElementById('ember-container');
+        emberContainer.addEventListener('mouseenter', function() {
+            var qrCode = document.getElementById('qr-code');
+            qrCode.classList.remove('hidden');
+        });
+        emberContainer.addEventListener('mouseleave', function() {
+            var qrCode = document.getElementById('qr-code');
+            qrCode.classList.add('hidden');
+        });
+    });
+</script>
+<script>
+    var mybutton = document.getElementById("top-link");
+    window.onscroll = function () {
+        if (document.body.scrollTop > 800 || document.documentElement.scrollTop > 800) {
+            mybutton.style.visibility = "visible";
+            mybutton.style.opacity = "1";
+        } else {
+            mybutton.style.visibility = "hidden";
+            mybutton.style.opacity = "0";
+        }
+    };
+</script>
+<script>
+    document.getElementById("theme-toggle").addEventListener("click", () => {
+        if (document.body.className.includes("dark")) {
+            document.body.classList.remove('dark');
+            localStorage.setItem("pref-theme", 'light');
+        } else {
+            document.body.classList.add('dark');
+            localStorage.setItem("pref-theme", 'dark');
+        }
+    })
+</script>
+
+
+
+
+<script type="text/javascript" async
+  src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
+MathJax.Hub.Config({
+  tex2jax: {
+    inlineMath: [['$','$']],
+    displayMath: [['$$','$$']],
+    processEscapes: true,
+    processEnvironments: true,
+    skipTags: ['script', 'noscript', 'style', 'textarea', 'pre'],
+    TeX: { equationNumbers: { autoNumber: "AMS" },
+         extensions: ["AMSmath.js", "AMSsymbols.js"] }
+  }
+});
+
+MathJax.Hub.Queue(function() {
+    
+    
+    
+    var all = MathJax.Hub.getAllJax(), i;
+    for(i = 0; i < all.length; i += 1) {
+        all[i].SourceElement().parentNode.className += ' has-jax';
+    }
+});
+</script>
+
+<style>
+code.has-jax {
+    font: inherit;
+    font-size: 100%;
+    background: inherit;
+    border: inherit;
+    color: #515151;
+}
+</style>
+</body>
+
+</html>
diff --git a/intro/index.xml b/intro/index.xml
new file mode 100644
index 0000000..adeb466
--- /dev/null
+++ b/intro/index.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/">
+  <channel>
+    <title>关于NEU小站 on NEU小站</title>
+    <link>https://xn--xhq44jb2fzpc.com/intro/</link>
+    <description>Recent content in 关于NEU小站 on NEU小站</description>
+    <generator>Hugo -- 0.127.0</generator>
+    <language>zh-cn</language>
+    <lastBuildDate></lastBuildDate>
+    <atom:link href="https://xn--xhq44jb2fzpc.com/intro/index.xml" rel="self" type="application/rss+xml" />
+  </channel>
+</rss>
diff --git a/intro/page/1/index.html b/intro/page/1/index.html
new file mode 100644
index 0000000..ca76c01
--- /dev/null
+++ b/intro/page/1/index.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html lang="zh-cn">
+  <head>
+    <title>http://localhost:1313/intro/</title>
+    <link rel="canonical" href="http://localhost:1313/intro/">
+    <meta name="robots" content="noindex">
+    <meta charset="utf-8">
+    <meta http-equiv="refresh" content="0; url=http://localhost:1313/intro/">
+  </head>
+</html>
diff --git a/invitecode/index.html b/invitecode/index.html
index ccf5fa7..b097b7b 100644
--- a/invitecode/index.html
+++ b/invitecode/index.html
@@ -214,6 +214,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -330,7 +335,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -370,8 +375,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/log/index.html b/log/index.html
index 140dfe0..efd0700 100644
--- a/log/index.html
+++ b/log/index.html
@@ -216,6 +216,11 @@
                     <span class="active">更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -516,7 +521,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -556,8 +561,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/loginrequired/index.html b/loginrequired/index.html
index d432f68..4cbd852 100644
--- a/loginrequired/index.html
+++ b/loginrequired/index.html
@@ -214,6 +214,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -291,7 +296,7 @@ document.addEventListener('DOMContentLoaded', function() {
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -331,8 +336,8 @@ document.addEventListener('DOMContentLoaded', function() {
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/qrcode/ember.png b/qrcode/ember.png
index 69aa827..3430154 100644
Binary files a/qrcode/ember.png and b/qrcode/ember.png differ
diff --git a/qualification_verify/index.html b/qualification_verify/index.html
index c444e9c..c74d6d0 100644
--- a/qualification_verify/index.html
+++ b/qualification_verify/index.html
@@ -214,6 +214,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -332,7 +337,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -372,8 +377,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/rapidlinks/快速链接/index.html b/rapidlinks/快速链接/index.html
index 7872ad2..72fe3f1 100644
--- a/rapidlinks/快速链接/index.html
+++ b/rapidlinks/快速链接/index.html
@@ -244,6 +244,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -463,7 +468,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -503,8 +508,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/ratings/index.html b/ratings/index.html
index f3804cd..ca8753f 100644
--- a/ratings/index.html
+++ b/ratings/index.html
@@ -216,6 +216,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -378,7 +383,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -418,8 +423,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/python-ppt/index.html b/resources/ba/python-ppt/index.html
index d402067..283ba4b 100644
--- a/resources/ba/python-ppt/index.html
+++ b/resources/ba/python-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -647,8 +652,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/中级财务1-ppt/index.html b/resources/ba/中级财务1-ppt/index.html
index a5e3fb7..bae5b76 100644
--- a/resources/ba/中级财务1-ppt/index.html
+++ b/resources/ba/中级财务1-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/中级财务2-ppt/index.html b/resources/ba/中级财务2-ppt/index.html
index 659ff99..81656d1 100644
--- a/resources/ba/中级财务2-ppt/index.html
+++ b/resources/ba/中级财务2-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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@@ -647,8 +652,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/会计课本/index.html b/resources/ba/会计课本/index.html
index 0e88363..5a04cc2 100644
--- a/resources/ba/会计课本/index.html
+++ b/resources/ba/会计课本/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -609,7 +614,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/发展经济学课本/index.html b/resources/ba/发展经济学课本/index.html
index 52d800b..9e4f198 100644
--- a/resources/ba/发展经济学课本/index.html
+++ b/resources/ba/发展经济学课本/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -609,7 +614,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/商务信息与管理-ppt/index.html b/resources/ba/商务信息与管理-ppt/index.html
index 0cd343e..2f4ff33 100644
--- a/resources/ba/商务信息与管理-ppt/index.html
+++ b/resources/ba/商务信息与管理-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/商务网站开发管理-ppt/index.html b/resources/ba/商务网站开发管理-ppt/index.html
index da6464a..485b54f 100644
--- a/resources/ba/商务网站开发管理-ppt/index.html
+++ b/resources/ba/商务网站开发管理-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -647,8 +652,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/国际贸易-ppt/index.html b/resources/ba/国际贸易-ppt/index.html
index f11bbc2..4765d5b 100644
--- a/resources/ba/国际贸易-ppt/index.html
+++ b/resources/ba/国际贸易-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -647,8 +652,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/国际贸易课本/index.html b/resources/ba/国际贸易课本/index.html
index 169a756..a020a5e 100644
--- a/resources/ba/国际贸易课本/index.html
+++ b/resources/ba/国际贸易课本/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -609,7 +614,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -649,8 +654,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/国际金融市场/index.html b/resources/ba/国际金融市场/index.html
index ddd0bee..7725eba 100644
--- a/resources/ba/国际金融市场/index.html
+++ b/resources/ba/国际金融市场/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -609,7 +614,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -649,8 +654,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/宏观经济学-ppt/index.html b/resources/ba/宏观经济学-ppt/index.html
index e6caa4a..80d6df0 100644
--- a/resources/ba/宏观经济学-ppt/index.html
+++ b/resources/ba/宏观经济学-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -647,8 +652,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/工程实训-ppt/index.html b/resources/ba/工程实训-ppt/index.html
index f61237d..dff2286 100644
--- a/resources/ba/工程实训-ppt/index.html
+++ b/resources/ba/工程实训-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         </span>
         
@@ -647,8 +652,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/微观经济学课本/index.html b/resources/ba/微观经济学课本/index.html
index d541dd0..32eca71 100644
--- a/resources/ba/微观经济学课本/index.html
+++ b/resources/ba/微观经济学课本/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -609,7 +614,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         </span>
         
@@ -649,8 +654,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/成本会计-ppt/index.html b/resources/ba/成本会计-ppt/index.html
index 749c31a..9e428c9 100644
--- a/resources/ba/成本会计-ppt/index.html
+++ b/resources/ba/成本会计-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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@@ -647,8 +652,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/技术经济学-ppt/index.html b/resources/ba/技术经济学-ppt/index.html
index 7d1d359..8cd65cd 100644
--- a/resources/ba/技术经济学-ppt/index.html
+++ b/resources/ba/技术经济学-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/投资学笔记/index.html b/resources/ba/投资学笔记/index.html
index 94519c4..cb18858 100644
--- a/resources/ba/投资学笔记/index.html
+++ b/resources/ba/投资学笔记/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -609,7 +614,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/政治经济学-ppt/index.html b/resources/ba/政治经济学-ppt/index.html
index 2d525f4..7149874 100644
--- a/resources/ba/政治经济学-ppt/index.html
+++ b/resources/ba/政治经济学-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/数据库开发应用-ppt/index.html b/resources/ba/数据库开发应用-ppt/index.html
index a6f9291..c3b8424 100644
--- a/resources/ba/数据库开发应用-ppt/index.html
+++ b/resources/ba/数据库开发应用-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/管理会计-ppt/index.html b/resources/ba/管理会计-ppt/index.html
index 4c64425..9057054 100644
--- a/resources/ba/管理会计-ppt/index.html
+++ b/resources/ba/管理会计-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/经济学原理-ppt/index.html b/resources/ba/经济学原理-ppt/index.html
index 6fd758c..41f4333 100644
--- a/resources/ba/经济学原理-ppt/index.html
+++ b/resources/ba/经济学原理-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/统计学课本/index.html b/resources/ba/统计学课本/index.html
index 98574fa..17b20ab 100644
--- a/resources/ba/统计学课本/index.html
+++ b/resources/ba/统计学课本/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -609,7 +614,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/计量经济学课本/index.html b/resources/ba/计量经济学课本/index.html
index 58f87e1..79fb748 100644
--- a/resources/ba/计量经济学课本/index.html
+++ b/resources/ba/计量经济学课本/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -609,7 +614,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/计量经济学资料/index.html b/resources/ba/计量经济学资料/index.html
index 6734fe0..0b7689b 100644
--- a/resources/ba/计量经济学资料/index.html
+++ b/resources/ba/计量经济学资料/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/财务管理ppt/index.html b/resources/ba/财务管理ppt/index.html
index 6a58b53..27b872e 100644
--- a/resources/ba/财务管理ppt/index.html
+++ b/resources/ba/财务管理ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         </span>
         
@@ -647,8 +652,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/财政学-ppt/index.html b/resources/ba/财政学-ppt/index.html
index 262caba..d239a14 100644
--- a/resources/ba/财政学-ppt/index.html
+++ b/resources/ba/财政学-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         </span>
         
@@ -647,8 +652,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/运筹学习题集/index.html b/resources/ba/运筹学习题集/index.html
index 7bf0ea5..41ee45c 100644
--- a/resources/ba/运筹学习题集/index.html
+++ b/resources/ba/运筹学习题集/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -609,7 +614,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         </span>
         
@@ -649,8 +654,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/运筹学第四版答案/index.html b/resources/ba/运筹学第四版答案/index.html
index ed4f329..93b80c3 100644
--- a/resources/ba/运筹学第四版答案/index.html
+++ b/resources/ba/运筹学第四版答案/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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@@ -647,8 +652,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/运筹学课本/index.html b/resources/ba/运筹学课本/index.html
index aa33ed5..f6ce035 100644
--- a/resources/ba/运筹学课本/index.html
+++ b/resources/ba/运筹学课本/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -609,7 +614,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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@@ -649,8 +654,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/ba/高级财务-ppt/index.html b/resources/ba/高级财务-ppt/index.html
index c89d674..4ba0518 100644
--- a/resources/ba/高级财务-ppt/index.html
+++ b/resources/ba/高级财务-ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -607,7 +612,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/cs/计算理论ppt/index.html b/resources/cs/计算理论ppt/index.html
index e6a4241..93be82c 100644
--- a/resources/cs/计算理论ppt/index.html
+++ b/resources/cs/计算理论ppt/index.html
@@ -271,6 +271,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -656,7 +661,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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@@ -696,8 +701,8 @@
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/c语言/index.html b/resources/c语言/index.html
index 6dce1f1..cd41389 100644
--- a/resources/c语言/index.html
+++ b/resources/c语言/index.html
@@ -263,6 +263,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -608,7 +613,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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@@ -648,8 +653,8 @@
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/index.html b/resources/index.html
index a16e38c..1d8841e 100644
--- a/resources/index.html
+++ b/resources/index.html
@@ -216,6 +216,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -701,7 +706,7 @@ createCardSection('xzttk', '选择题');
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -741,8 +746,8 @@ createCardSection('xzttk', '选择题');
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/javappt/index.html b/resources/javappt/index.html
index be492fa..4295d7a 100644
--- a/resources/javappt/index.html
+++ b/resources/javappt/index.html
@@ -256,6 +256,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -600,7 +605,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -640,8 +645,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/page/2/index.html b/resources/page/2/index.html
index f91bff1..8ba9c16 100644
--- a/resources/page/2/index.html
+++ b/resources/page/2/index.html
@@ -216,6 +216,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -691,7 +696,7 @@ createCardSection('xzttk', '选择题');
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -731,8 +736,8 @@ createCardSection('xzttk', '选择题');
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/page/3/index.html b/resources/page/3/index.html
index 81e288c..659ea3b 100644
--- a/resources/page/3/index.html
+++ b/resources/page/3/index.html
@@ -216,6 +216,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -694,7 +699,7 @@ createCardSection('xzttk', '选择题');
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -734,8 +739,8 @@ createCardSection('xzttk', '选择题');
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/page/4/index.html b/resources/page/4/index.html
index 9fc13c5..a6b60fb 100644
--- a/resources/page/4/index.html
+++ b/resources/page/4/index.html
@@ -216,6 +216,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -688,7 +693,7 @@ createCardSection('xzttk', '选择题');
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -728,8 +733,8 @@ createCardSection('xzttk', '选择题');
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/page/5/index.html b/resources/page/5/index.html
index 61e8e43..0e27413 100644
--- a/resources/page/5/index.html
+++ b/resources/page/5/index.html
@@ -216,6 +216,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -665,7 +670,7 @@ createCardSection('xzttk', '选择题');
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -705,8 +710,8 @@ createCardSection('xzttk', '选择题');
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/page/6/index.html b/resources/page/6/index.html
index d133c04..ad04f2a 100644
--- a/resources/page/6/index.html
+++ b/resources/page/6/index.html
@@ -216,6 +216,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -587,7 +592,7 @@ createCardSection('xzttk', '选择题');
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -627,8 +632,8 @@ createCardSection('xzttk', '选择题');
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/protocol/index.html b/resources/protocol/index.html
index 9211698..8f617aa 100644
--- a/resources/protocol/index.html
+++ b/resources/protocol/index.html
@@ -238,6 +238,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -328,7 +333,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -368,8 +373,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/习概课本/index.html b/resources/习概课本/index.html
index 1a16172..452e676 100644
--- a/resources/习概课本/index.html
+++ b/resources/习概课本/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -610,7 +615,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -650,8 +655,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/公路交通ppt/index.html b/resources/公路交通ppt/index.html
index 2134a5d..266824d 100644
--- a/resources/公路交通ppt/index.html
+++ b/resources/公路交通ppt/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -610,7 +615,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -650,8 +655,8 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/军训理论/index.html b/resources/军训理论/index.html
index d18caff..192f57c 100644
--- a/resources/军训理论/index.html
+++ b/resources/军训理论/index.html
@@ -259,6 +259,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -598,7 +603,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -638,8 +643,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/大化/index.html b/resources/大化/index.html
index a20b65d..715394d 100644
--- a/resources/大化/index.html
+++ b/resources/大化/index.html
@@ -259,6 +259,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -604,7 +609,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -644,8 +649,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/大物活页/index.html b/resources/大物活页/index.html
index a9102db..1c18dbd 100644
--- a/resources/大物活页/index.html
+++ b/resources/大物活页/index.html
@@ -259,6 +259,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -604,7 +609,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -644,8 +649,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/孙子兵法/index.html b/resources/孙子兵法/index.html
index 9ced3ad..7236eea 100644
--- a/resources/孙子兵法/index.html
+++ b/resources/孙子兵法/index.html
@@ -256,6 +256,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -604,7 +609,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -644,8 +649,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/工图习题/index.html b/resources/工图习题/index.html
index 9b590e6..e8a1082 100644
--- a/resources/工图习题/index.html
+++ b/resources/工图习题/index.html
@@ -256,6 +256,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -600,7 +605,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -640,8 +645,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/心理2题库/index.html b/resources/心理2题库/index.html
index ba4a0be..9f40801 100644
--- a/resources/心理2题库/index.html
+++ b/resources/心理2题库/index.html
@@ -256,6 +256,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -606,7 +611,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -646,8 +651,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/数值分析/index.html b/resources/数值分析/index.html
index 2d62419..34f5dc0 100644
--- a/resources/数值分析/index.html
+++ b/resources/数值分析/index.html
@@ -271,6 +271,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -664,7 +669,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -704,8 +709,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/数值分析期中/index.html b/resources/数值分析期中/index.html
index a551e2d..38c91b8 100644
--- a/resources/数值分析期中/index.html
+++ b/resources/数值分析期中/index.html
@@ -259,6 +259,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -584,7 +589,7 @@
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             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/数值分析课本/index.html b/resources/数值分析课本/index.html
index b0fbc38..26a778a 100644
--- a/resources/数值分析课本/index.html
+++ b/resources/数值分析课本/index.html
@@ -265,6 +265,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -616,7 +621,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/新通用教师用书1/index.html b/resources/新通用教师用书1/index.html
index 5b0c855..6197a6d 100644
--- a/resources/新通用教师用书1/index.html
+++ b/resources/新通用教师用书1/index.html
@@ -259,6 +259,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -613,7 +618,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/概率论/index.html b/resources/概率论/index.html
index 03993fb..1eaffe8 100644
--- a/resources/概率论/index.html
+++ b/resources/概率论/index.html
@@ -265,6 +265,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -622,7 +627,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/概率论习题/index.html b/resources/概率论习题/index.html
index f209ec5..7b8e045 100644
--- a/resources/概率论习题/index.html
+++ b/resources/概率论习题/index.html
@@ -259,6 +259,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -604,7 +609,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/概率论课本/index.html b/resources/概率论课本/index.html
index af086ba..32bcb4f 100644
--- a/resources/概率论课本/index.html
+++ b/resources/概率论课本/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -619,7 +624,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/毛概复习指南/index.html b/resources/毛概复习指南/index.html
index 196956f..f68c8ae 100644
--- a/resources/毛概复习指南/index.html
+++ b/resources/毛概复习指南/index.html
@@ -256,6 +256,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -604,7 +609,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/画法几何ppt/index.html b/resources/画法几何ppt/index.html
index 913dc31..89acd17 100644
--- a/resources/画法几何ppt/index.html
+++ b/resources/画法几何ppt/index.html
@@ -256,6 +256,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -582,7 +587,7 @@
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             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/线性代数/index.html b/resources/线性代数/index.html
index 30de4c3..8650a68 100644
--- a/resources/线性代数/index.html
+++ b/resources/线性代数/index.html
@@ -283,6 +283,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -869,7 +874,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/计组课本/index.html b/resources/计组课本/index.html
index 0f79a12..9b1c95e 100644
--- a/resources/计组课本/index.html
+++ b/resources/计组课本/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -596,7 +601,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/软测测验/index.html b/resources/软测测验/index.html
index c2b1d3c..780df4a 100644
--- a/resources/软测测验/index.html
+++ b/resources/软测测验/index.html
@@ -256,6 +256,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -580,7 +585,7 @@
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             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/食品安全/index.html b/resources/食品安全/index.html
index 4327276..9ba72ff 100644
--- a/resources/食品安全/index.html
+++ b/resources/食品安全/index.html
@@ -256,6 +256,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -604,7 +609,7 @@
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             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/马原课本/index.html b/resources/马原课本/index.html
index 4b6cdf5..634a465 100644
--- a/resources/马原课本/index.html
+++ b/resources/马原课本/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -606,7 +611,7 @@ let client;function getCookie(t){const n=t+"=";const o=document.cookie.split(";"
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             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/resources/高数/index.html b/resources/高数/index.html
index 1fe9a7c..7f7deab 100644
--- a/resources/高数/index.html
+++ b/resources/高数/index.html
@@ -265,6 +265,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -642,7 +647,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
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index 6f5b9e6..ce3d264 100644
--- a/resources/高数习题/index.html
+++ b/resources/高数习题/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -610,7 +615,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
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index 8acffa3..993a958 100644
--- a/search/index.html
+++ b/search/index.html
@@ -245,6 +245,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -387,7 +392,7 @@ document.addEventListener('DOMContentLoaded', function() {
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/sitemap.xml b/sitemap.xml
index 9f18179..46c8f52 100644
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-    <lastmod>2024-09-23T18:00:00+08:00</lastmod>
   </url><url>
     <loc>https://xn--xhq44jb2fzpc.com/</loc>
+    <lastmod>2024-09-24T16:10:19+08:00</lastmod>
+  </url><url>
+    <loc>https://xn--xhq44jb2fzpc.com/intro/</loc>
+    <lastmod>2024-09-24T16:10:19+08:00</lastmod>
+  </url><url>
+    <loc>https://xn--xhq44jb2fzpc.com/resources/%E5%BF%83%E7%90%862%E9%A2%98%E5%BA%93/</loc>
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index d4bb7c6..98a5ef6 100644
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+++ b/strategy/index.html
@@ -216,6 +216,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -616,7 +621,7 @@ $$
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
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@@ -656,8 +661,8 @@ $$
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/strategy/二食堂/index.html b/strategy/二食堂/index.html
index 9dfab8e..253e5d4 100644
--- a/strategy/二食堂/index.html
+++ b/strategy/二食堂/index.html
@@ -262,6 +262,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -602,7 +607,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -642,8 +647,8 @@
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/strategy/学分绩点是什么/index.html b/strategy/学分绩点是什么/index.html
index b8bc426..871262c 100644
--- a/strategy/学分绩点是什么/index.html
+++ b/strategy/学分绩点是什么/index.html
@@ -355,6 +355,11 @@ $$
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -819,7 +824,7 @@ $$<br>
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         </span>
         
@@ -859,8 +864,8 @@ $$<br>
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/strategy/宿舍规格/index.html b/strategy/宿舍规格/index.html
index 9c5cb54..b359c1c 100644
--- a/strategy/宿舍规格/index.html
+++ b/strategy/宿舍规格/index.html
@@ -256,6 +256,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -815,7 +820,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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         </span>
         
@@ -855,8 +860,8 @@
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/strategy/工管综测/index.html b/strategy/工管综测/index.html
index 7006c9d..f988cf1 100644
--- a/strategy/工管综测/index.html
+++ b/strategy/工管综测/index.html
@@ -319,6 +319,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -782,7 +787,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
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@@ -822,8 +827,8 @@
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/strategy/星级/index.html b/strategy/星级/index.html
index 93bab76..62138c1 100644
--- a/strategy/星级/index.html
+++ b/strategy/星级/index.html
@@ -268,6 +268,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -622,7 +627,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -662,8 +667,8 @@
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/strategy/群/index.html b/strategy/群/index.html
index 67f50c2..8129cd0 100644
--- a/strategy/群/index.html
+++ b/strategy/群/index.html
@@ -253,6 +253,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -593,7 +598,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -633,8 +638,8 @@
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         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/strategy/软金特分流/index.html b/strategy/软金特分流/index.html
index 110411b..a9342e0 100644
--- a/strategy/软金特分流/index.html
+++ b/strategy/软金特分流/index.html
@@ -256,6 +256,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -592,7 +597,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -632,8 +637,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/strategy/选课/index.html b/strategy/选课/index.html
index 017e288..4674398 100644
--- a/strategy/选课/index.html
+++ b/strategy/选课/index.html
@@ -256,6 +256,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -592,7 +597,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -632,8 +637,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/submission/index.html b/submission/index.html
index c36b104..ac9a9cf 100644
--- a/submission/index.html
+++ b/submission/index.html
@@ -232,6 +232,11 @@ markdown 基本语法教程 空格与换行 markdown 语法对于空格与换行
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -1036,7 +1041,7 @@ async function fetchNoCache(url) {
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -1076,8 +1081,8 @@ async function fetchNoCache(url) {
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/submissionsuccess/index.html b/submissionsuccess/index.html
index 2acd3f7..24c09f4 100644
--- a/submissionsuccess/index.html
+++ b/submissionsuccess/index.html
@@ -214,6 +214,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -282,7 +287,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -322,8 +327,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;
diff --git a/tags/index.html b/tags/index.html
index d17fb61..8f723af 100644
--- a/tags/index.html
+++ b/tags/index.html
@@ -199,6 +199,11 @@
                     <span>更新日志</span>
                 </a>
             </li>
+            <li>
+                <a href="https://xn--xhq44jb2fzpc.com/intro/" title="关于">
+                    <span>关于</span>
+                </a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -217,7 +222,7 @@
         <span id="ember-container">
             联系网站管理员
             <div id="qr-code" class="hidden">
-                <img src="https://www.xn--xhq44jb2fzpc.com/qrcode/ember.png" alt="QR Code" />
+                <img src="https://download.xn--xhq44jb2fzpc.com/avatar/qrcode.png" alt="QR Code" />
             </div>
         </span>
         
@@ -257,8 +262,8 @@
         border: 1px solid #ccc;
         border-radius: 10px;
         box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-        width: 200px;  
-        height: 200px;  
+        width: 170px;  
+        height: 170px;  
         display: flex;
         justify-content: center;
         align-items: center;