全局主按钮 颜色样式统一

frontend/src/views/teachBusiness/teachingTask/index.vue

@@ -48,7 +48,7 @@
           </el-col>
         </el-row>
         <div class="search-actions">
-          <el-button class="gray-btn" @click="handleQuery">查询</el-button>
+          <el-button type="primary" icon="el-icon-search" @click="handleQuery">查询</el-button>
         </div>
       </el-form>
     </el-card>
@@ -113,7 +113,7 @@
       </el-descriptions>
       <div v-else v-loading="detailLoading" class="detail-empty">加载中...</div>
       <div slot="footer">
-        <el-button type="primary" @click="detailVisible = false">关闭</el-button>
+        <el-button @click="detailVisible = false">关闭</el-button>
       </div>
     </el-dialog>
   </div>
@@ -293,20 +293,4 @@ export default {
   }
 }
 
-.gray-btn {
-  height: 28px;
-  padding: 2px 16px;
-  font-size: 12px;
-  background: #f5f5f5;
-  border: 1px solid #c0c4cc;
-  color: #333;
-  border-radius: 2px;
-
-  &:hover,
-  &:focus {
-    background: #ebebeb;
-    border-color: #c0c4cc;
-    color: #333;
-  }
-}
 </style>