diff --git a/schoolNewsWeb/src/views/public/article/card/HotArticleCard.vue b/schoolNewsWeb/src/views/public/article/card/HotArticleCard.vue
index c47a2fb..7f93849 100644
--- a/schoolNewsWeb/src/views/public/article/card/HotArticleCard.vue
+++ b/schoolNewsWeb/src/views/public/article/card/HotArticleCard.vue
@@ -1,8 +1,7 @@
 <template>
   <div class="article-card" @click="handleClick">
     <div class="article-image">
-      <img v-if="resource?.coverImage" :src="FILE_DOWNLOAD_URL + resource.coverImage" :alt="resource.title" />
-      <div v-else class="image-placeholder"></div>
+      <img :src="resource?.coverImage ? (FILE_DOWNLOAD_URL + resource.coverImage) : defaultArticleImg" :alt="resource.title" />
       <div class="article-tag">精选文章</div>
     </div>
     <div class="article-content">
@@ -27,6 +26,7 @@ import { useRouter } from 'vue-router';
 import { Document } from '@element-plus/icons-vue';
 import type { ResourceRecommendVO } from '@/types';
 import { FILE_DOWNLOAD_URL } from '@/config';
+import defaultArticleImg from '@/assets/imgs/article-default.png';
 
 const props = defineProps<{
   resource?: ResourceRecommendVO;
@@ -82,20 +82,6 @@ function handleClick() {
       object-fit: cover;
     }
 
-    .image-placeholder {
-      width: 100%;
-      height: 100%;
-      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-      position: relative;
-      
-      &::after {
-        content: '';
-        position: absolute;
-        width: 100%;
-        height: 100%;
-        background: url('data:image/svg+xml,<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)" /></svg>');
-      }
-    }
 
     .article-tag {
       position: absolute;
diff --git a/schoolNewsWeb/src/views/public/article/card/IdeologicalArticleCard.vue b/schoolNewsWeb/src/views/public/article/card/IdeologicalArticleCard.vue
index c5eb87f..1616ffd 100644
--- a/schoolNewsWeb/src/views/public/article/card/IdeologicalArticleCard.vue
+++ b/schoolNewsWeb/src/views/public/article/card/IdeologicalArticleCard.vue
@@ -1,8 +1,7 @@
 <template>
   <div class="ideological-card" @click="handleClick">
     <div class="card-image">
-      <img v-if="resource?.coverImage" :src="FILE_DOWNLOAD_URL + resource.coverImage" :alt="resource.title" />
-      <div v-else class="image-placeholder"></div>
+      <img :src="resource?.coverImage ? (FILE_DOWNLOAD_URL + resource.coverImage) : defaultArticleImg" :alt="resource.title" />
     </div>
     <div class="date-box" v-if="publishDate">
       <div class="day">{{ publishDate.day }}</div>
@@ -22,6 +21,7 @@ import { computed } from 'vue';
 import { useRouter } from 'vue-router';
 import type { ResourceRecommendVO } from '@/types';
 import { FILE_DOWNLOAD_URL } from '@/config';
+import defaultArticleImg from '@/assets/imgs/article-default.png';
 
 const props = defineProps<{
   resource?: ResourceRecommendVO;
@@ -81,20 +81,6 @@ function handleClick() {
       object-fit: cover;
     }
 
-    .image-placeholder {
-      width: 100%;
-      height: 100%;
-      background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
-      position: relative;
-      
-      &::after {
-        content: '';
-        position: absolute;
-        width: 100%;
-        height: 100%;
-        background: url('data:image/svg+xml,<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1.5" fill="rgba(255,255,255,0.2)"/></pattern></defs><rect width="100%" height="100%" fill="url(%23dots)" /></svg>');
-      }
-    }
   }
 
   .date-box {
diff --git a/schoolNewsWeb/src/views/user/resource-center/SearchView.vue b/schoolNewsWeb/src/views/user/resource-center/SearchView.vue
index 9e4418f..3a2937d 100644
--- a/schoolNewsWeb/src/views/user/resource-center/SearchView.vue
+++ b/schoolNewsWeb/src/views/user/resource-center/SearchView.vue
@@ -92,15 +92,9 @@
             <!-- 文章封面 -->
             <div class="article-cover">
               <img
-                v-if="article.coverImage"
-                :src="FILE_DOWNLOAD_URL + article.coverImage"
+                :src="article.coverImage ? (FILE_DOWNLOAD_URL + article.coverImage) : defaultArticleImg"
                 :alt="article.resourceName"
               />
-              <div v-else class="cover-placeholder">
-                <el-icon>
-                  <Document />
-                </el-icon>
-              </div>
               <div class="cover-overlay">
                 <span class="view-button">查看详情</span>
               </div>
@@ -161,15 +155,9 @@
             <!-- 课程封面 -->
             <div class="course-cover">
               <img
-                v-if="course.coverImage"
-                :src="FILE_DOWNLOAD_URL + course.coverImage"
+                :src="course.coverImage ? (FILE_DOWNLOAD_URL + course.coverImage) : defaultCourseImg"
                 :alt="course.courseName"
               />
-              <div v-else class="cover-placeholder">
-                <el-icon>
-                  <Reading />
-                </el-icon>
-              </div>
               <div class="cover-overlay">
                 <span class="view-button">查看课程</span>
               </div>
@@ -237,10 +225,14 @@ import {
 import { resourceApi } from '@/apis/resource';
 import { FILE_DOWNLOAD_URL } from '@/config';
 import type { TaskItemVO } from '@/types/study';
+import defaultArticleImg from '@/assets/imgs/article-default.png';
 
 const router = useRouter();
 const route = useRoute();
 
+// 默认封面（文章和课程使用同一个）
+const defaultCourseImg = defaultArticleImg;
+
 // 响应式数据
 const loading = ref(false);
 const searchKeyword = ref('');