修改页面风格

src/lib/posts.ts

@@ -13,6 +13,7 @@ export type BlogPost = MarkdownModule & {
   tags: string[];
   categories: string[];
   summary: string;
+  cover?: string;
   href: string;
 };
 
@@ -79,6 +80,7 @@ export function getAllPosts(): BlogPost[] {
         tags: asArray(module.frontmatter.tags),
         categories: asArray(module.frontmatter.categories),
         summary: makeSummary(module),
+        cover: typeof module.frontmatter.cover === 'string' ? module.frontmatter.cover : undefined,
         href: `/posts/${slug}/`,
       };
     })