diff --git a/src/index.html b/src/index.html
index 0f5eb94..0b3dcaa 100644
--- a/src/index.html
+++ b/src/index.html
@@ -12,32 +12,154 @@
     <meta name="description" itemprop="description" content="又一个 Chrome 离线包下载">
     <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css">
     <link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/sukkaw/suka.css@0.1.0/dist/suka.min.css">
+    <style>
+        .sk-shadow-1 {
+            border: 1px solid #eee;
+        }
+
+        .sha-256 {
+            overflow: hidden;
+            user-select: all
+        }
+
+        body {
+            font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
+        }
+
+        h1,
+        .h1,
+        h2,
+        .h2,
+        h3,
+        .h3,
+        h4,
+        .h4,
+        h5,
+        .h5,
+        .lead,
+        a,
+        .a,
+        label,
+        option,
+        input,
+        span,
+        select,
+        button,
+        textarea,
+        div {
+            font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif
+        }
+
+        .bs-callout {
+            padding: 16px;
+            margin: 20px 0;
+            border: 1px solid #eee;
+            border-left-width: 5px;
+            border-radius: 3px;
+            word-break: break-all;
+        }
+
+        .bs-callout h4 {
+            margin-top: 0;
+            margin-bottom: 5px;
+        }
+
+        .bs-callout blockquote {
+            font-size: 14px;
+        }
+
+        .bs-callout p:last-child {
+            margin-bottom: 0;
+        }
+
+        .bs-callout code {
+            border-radius: 3px;
+        }
+
+        .bs-callout+.bs-callout {
+            margin-top: -5px;
+        }
+
+        .bs-callout-success {
+            border-left-color: #339933;
+        }
+
+        .bs-callout-success h4 {
+            color: #339933;
+        }
+
+        .bs-callout-danger {
+            border-left-color: #ce4844;
+        }
+
+        .bs-callout-danger h4 {
+            color: #ce4844;
+        }
+
+        .bs-callout-warning {
+            border-left-color: #aa6708;
+        }
+
+        .bs-callout-warning h4 {
+            color: #aa6708;
+        }
+
+        .bs-callout-info {
+            border-left-color: #1b809e;
+        }
+
+        .bs-callout-info h4 {
+            color: #1b809e;
+        }
+    </style>
     <!--[if lt IE 9]><script src="https://cdn.jsdelivr.net/npm/html5shiv@3.7.3"></script><script src="https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js"></script><![endif]-->
     <meta property="og:title" content="Chrome 离线包 - SukkaLab">
     <meta property="og:type" content="Website">
     <meta property="og:url" content="https://lab.suka.moe/chrome">
     <meta property="og:description" content="又一个 Chrome 离线包下载">
     <meta name="twitter:card" content="summary">
-    <style>
-        .sha-256 {
-            overflow: hidden;
-            user-select: all
-        }
-    </style>
+    <script type="text/javascript">if (parent.frames.length > 0) top.location.replace('https://lab.suka.moe/chrome/'); if (self != top) top.location = 'https://lab.suka.moe/chrome/';
+        var a = window.location.host,
+            b = "lab.suka.moe",
+            c = "localhost:8080",
+            d = "https://lab.suka.moe/chrome";
+        b != a && c != a && (window.location.href = d);
+    </script>
 </head>
 
 <body>
     <div class="container sk-pb-8">
         <div class="sk-pt-8">
-            <h1 class="text-center">Chrome 离线包下载</h1>
-            <p class="h2 text-center">
-                <small>For Windows Only</small>
-            </p>
+            <h1 class="h2 text-center">Chrome 离线包下载&nbsp;<small>For Windows Only</small></h1>
             <p class="h3 sk-mt-0 text-center">
                 <small>查询时间 {{CheckTime}}</small>
             </p>
         </div>
-        <div class="row">
+
+        <div class="bs-callout bs-callout-danger sk-shadow-1">
+            <h4 class="sk-mb-4">使用提示</h4>
+            <p>这里提供的是 Google 官方的离线包下载地址，<b>离线包并未内置在线更新</b></p>
+            <h5 class="sk-text-bold">Chrome 官网</h5>
+            <p><a href="https://www.google.com/chrome/" target="_blank" rel="noopener noreferrer">https://www.google.com/chrome/</a>（中国大陆地区不可访问）<br><a href="https://www.google.cn/chrome/" target="_blank" rel="noopener noreferrer">https://www.google.cn/chrome/</a>（中国大陆地区可访问）</p>
+            <h5 class="sk-text-bold">站内快速跳转</h5>
+            <p>
+                <a href="#stable">Stable 稳定版</a>&nbsp;|&nbsp;<!--
+             --><a href="#beta">Beta 测试版</a>&nbsp;|&nbsp;<!--
+             --><a href="#dev">Dev 开发版</a>&nbsp;|&nbsp;<!--
+             --><a href="#canary">Canary 金丝雀</a>
+            </p>
+            <h5 class="sk-text-bold">项目开源地址</h5>
+            <p>
+                <a href="https://github.com/SukkaW/ChromeChecker" target="_blank" rel="noopener noreferrer">https://github.com/SukkaW/ChromeChecker</a>
+            </p>
+            <h5 class="sk-text-bold">API（XML 格式）</h5>
+            <p>
+                <a href="https://lab.suka.moe/chrome/chrome.xml" target="_blank" rel="noopener noreferrer">https://lab.suka.moe/chrome/chrome.xml</a>（未压缩）<br>
+                <a href="https://lab.suka.moe/chrome/chrome.min.xml" target="_blank" rel="noopener noreferrer">https://lab.suka.moe/chrome/chrome.min.xml</a>（已压缩）
+            </p>
+            <blockquote class="sk-mb-0">你完全可以用本站开放的 API 来完成你想要做的任何事情，所以 <b>完全没有必要</b> 用 iframe 嵌套或反代本站，或者用爬虫爬取本站 HTML 来获取数据。</blockquote>
+        </div>
+        <div id="stable" class="row">
             <div class="col-sm-6 sk-pt-5">
                 <div class="sk-shadow-1 sk-p-5">
                     <h4 class="sk-mt-0 sk-mb-3 sk-text-bold">Stable 稳定版 32 位&nbsp;&nbsp;
@@ -87,7 +209,7 @@
                 </div>
             </div>
         </div>
-        <div class="row">
+        <div class="row" id="beta">
             <div class="col-sm-6 sk-pt-5">
                 <div class="sk-shadow-1 sk-p-5">
                     <h4 class="sk-mt-0 sk-mb-3 sk-text-bold">Beta 测试版 32 位&nbsp;&nbsp;
@@ -137,7 +259,7 @@
                 </div>
             </div>
         </div>
-        <div class="row">
+        <div class="row" id="dev">
             <div class="col-sm-6 sk-pt-5">
                 <div class="sk-shadow-1 sk-p-5">
                     <h4 class="sk-mt-0 sk-mb-3 sk-text-bold">Dev 开发版 32 位&nbsp;&nbsp;
@@ -187,7 +309,7 @@
                 </div>
             </div>
         </div>
-        <div class="row">
+        <div class="row" id="canary">
             <div class="col-sm-6 sk-pt-5">
                 <div class="sk-shadow-1 sk-p-5">
                     <h4 class="sk-mt-0 sk-mb-3 sk-text-bold">Canary 金丝雀 32 位&nbsp;&nbsp;
