更新样式

backend/src/main.js

@@ -5,6 +5,8 @@ import * as ElementPlusIconsVue from '@element-plus/icons-vue'
 import 'element-plus/dist/index.css'
 // 导入 Element Plus 暗黑模式样式
 import 'element-plus/theme-chalk/dark/css-vars.css'
+import 'viewerjs/dist/viewer.css'
+import VueViewer from 'v-viewer'
 import '@/assets/less/index.less'
 import '@/assets/css/all.min.css'
 import '@/assets/js/all.min.js'
@@ -27,6 +29,7 @@ for (const [key, component] of Object.entries(ElementPlusIconsVue)) {
 
 app.use(pinia)
 app.use(router)
+app.use(VueViewer)
 
 // 初始化主题（必须在挂载前执行）
 // initTheme()