允许封面图为空

themes/matery/components/BlogPostCard.js

@@ -4,8 +4,13 @@ import React from 'react'
 import TagItemMini from './TagItemMini'
 import CONFIG_MATERY from '../config_matery'
 
-const BlogPostCard = ({ post, showSummary }) => {
+const BlogPostCard = ({ post, showSummary, siteInfo }) => {
   const showPreview = CONFIG_MATERY.POST_LIST_PREVIEW && post.blockMap
+  // matery 主题默认强制显示图片
+  if (post && !post.page_cover) {
+    post.page_cover = siteInfo.pageCover
+  }
+  const showPageCover = CONFIG_MATERY.POST_LIST_COVER && !showPreview && post?.page_cover
   return (
       <div
           data-aos="zoom-in"
@@ -19,7 +24,7 @@ const BlogPostCard = ({ post, showSummary }) => {
           <div key={post.id} className="flex flex-col h-96 justify-between">
 
               {/* 头部图片 填充卡片 */}
-              {CONFIG_MATERY.POST_LIST_COVER && !showPreview && post?.page_cover && (
+              {showPageCover && (
                   <Link href={`${BLOG.SUB_PATH}/${post.slug}`} passHref legacyBehavior>
                       <div className="flex flex-grow w-full relative duration-200 bg-black rounded-t-md  cursor-pointer transform overflow-hidden">
                           {/* eslint-disable-next-line @next/next/no-img-element */}