diff --git a/dist/index.html b/dist/index.html
index 2c8d23b..d70d44f 100644
--- a/dist/index.html
+++ b/dist/index.html
@@ -6,6 +6,7 @@
 <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/github-markdown-css@5.5.1/github-markdown-light.min.css"/>
 <link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.9.0/build/styles/github.min.css"/>
 <style>
+html, body { overscroll-behavior-y: contain; }
 .markdown-body{font-size:14px;line-height:1.6}.markdown-body pre{overflow:auto}
 .msg-bubble{overflow-x:auto}
 .copy-btn{position:absolute;top:.5rem;right:.5rem;background:#0f172a;color:#fff;border-radius:.5rem;padding:.25rem .5rem;font-size:12px;opacity:.85}
diff --git a/dist/sw.js b/dist/sw.js
index 44fa738..66a592a 100644
--- a/dist/sw.js
+++ b/dist/sw.js
@@ -1 +1 @@
-if(!self.define){let e,i={};const t=(t,n)=>(t=new URL(t+".js",n).href,i[t]||new Promise(i=>{if("document"in self){const e=document.createElement("script");e.src=t,e.onload=i,document.head.appendChild(e)}else e=t,importScripts(t),i()}).then(()=>{let e=i[t];if(!e)throw new Error(`Module ${t} didn’t register its module`);return e}));self.define=(n,r)=>{const s=e||("document"in self?document.currentScript.src:"")||location.href;if(i[s])return;let o={};const c=e=>t(e,s),d={module:{uri:s},exports:o,require:c};i[s]=Promise.all(n.map(e=>d[e]||c(e))).then(e=>(r(...e),o))}}define(["./workbox-5ffe50d4"],function(e){"use strict";self.skipWaiting(),e.clientsClaim(),e.precacheAndRoute([{url:"index.html",revision:"13c5e6404b2907169503bbfc8079bc90"},{url:"registerSW.js",revision:"1872c500de691dce40960bb85481de07"},{url:"manifest.webmanifest",revision:"7a6c5c6ab9cb5d3605d21df44c6b17a2"}],{}),e.cleanupOutdatedCaches(),e.registerRoute(new e.NavigationRoute(e.createHandlerBoundToURL("index.html")))});
+if(!self.define){let e,i={};const t=(t,n)=>(t=new URL(t+".js",n).href,i[t]||new Promise(i=>{if("document"in self){const e=document.createElement("script");e.src=t,e.onload=i,document.head.appendChild(e)}else e=t,importScripts(t),i()}).then(()=>{let e=i[t];if(!e)throw new Error(`Module ${t} didn’t register its module`);return e}));self.define=(n,r)=>{const s=e||("document"in self?document.currentScript.src:"")||location.href;if(i[s])return;let o={};const c=e=>t(e,s),d={module:{uri:s},exports:o,require:c};i[s]=Promise.all(n.map(e=>d[e]||c(e))).then(e=>(r(...e),o))}}define(["./workbox-5ffe50d4"],function(e){"use strict";self.skipWaiting(),e.clientsClaim(),e.precacheAndRoute([{url:"index.html",revision:"6081e578e80a100dcb3a9316e4161a24"},{url:"registerSW.js",revision:"1872c500de691dce40960bb85481de07"},{url:"manifest.webmanifest",revision:"7a6c5c6ab9cb5d3605d21df44c6b17a2"}],{}),e.cleanupOutdatedCaches(),e.registerRoute(new e.NavigationRoute(e.createHandlerBoundToURL("index.html")))});