feat: 归档页面

src/layouts/PageHeader.astro

@@ -0,0 +1,46 @@
+---
+import {siteConfig} from "@/consts.ts";
+const {siteTitle,git} = siteConfig;
+---
+
+<header>
+  <a href="/"><h1>{siteTitle}</h1></a>
+  <nav>
+    <a href="/archive">归档</a>
+    <a target="_blank" href={git}>git</a>
+  </nav>
+</header>
+
+<style>
+  header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    border-bottom: var(--border-primary);
+    margin-top: 32px;
+    padding-bottom: 24px;
+  }
+
+  nav {
+    display: flex;
+    gap: 12px;
+    font-size: 14px;
+    color: var(--text-secondary);
+  }
+
+  nav a:hover {
+    color: var(--text-primary);
+  }
+
+  h1 {
+    font-size: 24px;
+    font-weight: 600;
+  }
+
+  @media (max-width: 640px) {
+    header {
+      margin-top: 12px;
+      margin-bottom: 0;
+    }
+  }
+</style>