diff --git a/index.html b/index.html
index d031020..7a9547e 100644
--- a/index.html
+++ b/index.html
@@ -323,18 +323,6 @@ <h1 class="mt-1.5 mb-3 text-3xl font-bold">Charles</h1>
 
 
 
-<section class="relative my-10 first-of-type:mt-0 last-of-type:mb-0">
-  <h2 class="!my-0 pb-1 !leading-none">科学计算笔记</h2>
-  <time class="text-sm opacity-60"
-    >Oct 16, 2023</time
-  >
-  <a class="absolute inset-0" href="/post/cc_1_1/"></a>
-</section>
-
-
-
-
-
 <section class="relative my-10 first-of-type:mt-0 last-of-type:mb-0">
   <h2 class="!my-0 pb-1 !leading-none">Windows 下为某些特殊应用配置系统代理</h2>
   <time class="text-sm opacity-60"
diff --git a/index.xml b/index.xml
index 89cf469..a223b23 100644
--- a/index.xml
+++ b/index.xml
@@ -7,16 +7,7 @@
     <generator>Hugo -- gohugo.io</generator>
     <language>zh</language>
     <copyright>Copyright © 2023, Charles IV; all rights reserved.</copyright>
-    <lastBuildDate>Mon, 16 Oct 2023 20:17:18 +0800</lastBuildDate><atom:link href="/index.xml" rel="self" type="application/rss+xml" />
-    <item>
-      <title>科学计算笔记</title>
-      <link>/post/cc_1_1/</link>
-      <pubDate>Mon, 16 Oct 2023 20:17:18 +0800</pubDate>
-      
-      <guid>/post/cc_1_1/</guid>
-      <description>
Previous
Next &amp;nbsp; &amp;nbsp;
/ [pdf]
View the PDF file here.
</description>
-    </item>
-    
+    <lastBuildDate>Thu, 20 Jul 2023 10:58:52 +0800</lastBuildDate><atom:link href="/index.xml" rel="self" type="application/rss+xml" />
     <item>
       <title>Windows 下为某些特殊应用配置系统代理</title>
       <link>/post/proxy/</link>
diff --git a/post/index.html b/post/index.html
index 5df83a4..d78610d 100644
--- a/post/index.html
+++ b/post/index.html
@@ -295,18 +295,6 @@
 
 
 
-<section class="relative my-10 first-of-type:mt-0 last-of-type:mb-0">
-  <h2 class="!my-0 pb-1 !leading-none">科学计算笔记</h2>
-  <time class="text-sm opacity-60"
-    >Oct 16, 2023</time
-  >
-  <a class="absolute inset-0" href="/post/cc_1_1/"></a>
-</section>
-
-
-
-
-
 <section class="relative my-10 first-of-type:mt-0 last-of-type:mb-0">
   <h2 class="!my-0 pb-1 !leading-none">Windows 下为某些特殊应用配置系统代理</h2>
   <time class="text-sm opacity-60"
diff --git a/post/index.xml b/post/index.xml
index f774cdd..56d8f6c 100644
--- a/post/index.xml
+++ b/post/index.xml
@@ -7,16 +7,7 @@
     <generator>Hugo -- gohugo.io</generator>
     <language>zh</language>
     <copyright>Copyright © 2023, Charles IV; all rights reserved.</copyright>
-    <lastBuildDate>Mon, 16 Oct 2023 20:17:18 +0800</lastBuildDate><atom:link href="/post/index.xml" rel="self" type="application/rss+xml" />
-    <item>
-      <title>科学计算笔记</title>
-      <link>/post/cc_1_1/</link>
-      <pubDate>Mon, 16 Oct 2023 20:17:18 +0800</pubDate>
-      
-      <guid>/post/cc_1_1/</guid>
-      <description>
Previous
Next &amp;nbsp; &amp;nbsp;
/ [pdf]
View the PDF file here.
</description>
-    </item>
-    
+    <lastBuildDate>Thu, 20 Jul 2023 10:58:52 +0800</lastBuildDate><atom:link href="/post/index.xml" rel="self" type="application/rss+xml" />
     <item>
       <title>Windows 下为某些特殊应用配置系统代理</title>
       <link>/post/proxy/</link>
diff --git a/post/proxy/index.html b/post/proxy/index.html
index 5915c4f..4f5ca95 100644
--- a/post/proxy/index.html
+++ b/post/proxy/index.html
@@ -362,12 +362,6 @@ <h2 id="git-配置代理">Git 配置代理</h2>
   
   <nav class="mt-24 flex rounded-lg bg-black/[3%] text-lg dark:bg-white/[8%]">
     
-    <a
-      class="flex w-1/2 items-center rounded-l-md p-6 pr-3 no-underline hover:bg-black/[2%]"
-      href="/post/cc_1_1/"
-      ><span class="mr-1.5">←</span><span>科学计算笔记</span></a
-    >
-    
     
     <a
       class="ml-auto flex w-1/2 items-center justify-end rounded-r-md p-6 pl-3 no-underline hover:bg-black/[2%]"
diff --git a/sitemap.xml b/sitemap.xml
index f9d823c..265263e 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -3,13 +3,10 @@
   xmlns:xhtml="http://www.w3.org/1999/xhtml">
   <url>
     <loc>/</loc>
-    <lastmod>2023-10-16T20:17:18+08:00</lastmod>
+    <lastmod>2023-07-20T10:58:52+08:00</lastmod>
   </url><url>
     <loc>/post/</loc>
-    <lastmod>2023-10-16T20:17:18+08:00</lastmod>
-  </url><url>
-    <loc>/post/cc_1_1/</loc>
-    <lastmod>2023-10-16T20:17:18+08:00</lastmod>
+    <lastmod>2023-07-20T10:58:52+08:00</lastmod>
   </url><url>
     <loc>/post/proxy/</loc>
     <lastmod>2023-07-20T10:58:52+08:00</lastmod>