diff --git a/src/pages/404.astro b/src/pages/404.astro
new file mode 100644
index 0000000..9dab61c
--- /dev/null
+++ b/src/pages/404.astro
@@ -0,0 +1,19 @@
+---
+// 公共 Layout
+import Layout from "../layouts/Layout.astro";
+// Aside组件
+import Aside from "../components/Aside.astro";
+// 文章页面样式
+import "../styles/Article.less";
+---
+
+<Layout title="404 Not Found" keywords={[404]} description="404 Not Found">
+	<section class="vh-container">
+		<article class="vh-animation vh-article-main">
+			<header>
+				<h1 class="error-title">404 Not Found</h1>
+			</header>
+		</article>
+		<Aside />
+	</section>
+</Layout>
diff --git a/src/pages/rss.xml.ts b/src/pages/rss.xml.ts
index 73099aa..684317e 100644
--- a/src/pages/rss.xml.ts
+++ b/src/pages/rss.xml.ts
@@ -16,6 +16,6 @@ export async function GET(context: any) {
 			pubDate: post.data.updated || post.data.date,
 			description: getDescription(post),
 			link: `/article/${post.data.id}`
-		})).reverse(),
+		})).sort((a: any, b: any) => (new Date(b.pubDate).getTime() - new Date(a.pubDate).getTime())),
 	});
 }
diff --git a/src/styles/Article.less b/src/styles/Article.less
index 068e380..ce1877e 100644
--- a/src/styles/Article.less
+++ b/src/styles/Article.less
@@ -38,6 +38,10 @@ section.vh-container {
       padding-bottom: 1rem;
       font-size: 1.58rem;
 
+      &.error-title {
+        font-size: 1.88rem;
+      }
+
       &::before {
         display: none;
       }