全局主按钮 颜色样式统一

frontend/src/views/student/shiftTeam/index.vue

@@ -50,13 +50,13 @@
     <!-- ==================== 2. 工具栏：新增 / 导入 / 导出 ==================== -->
     <div class="toolbar">
       <el-button type="primary" icon="el-icon-plus" @click="handleAdd">新增学员队</el-button>
-      <el-button type="primary" plain icon="el-icon-download" @click="handleExport">导出 Excel</el-button>
-      <el-button type="primary" plain icon="el-icon-download" @click="handleDownloadTemplate">模板下载</el-button>
+      <el-button icon="el-icon-download" @click="handleExport">导出 Excel</el-button>
+      <el-button icon="el-icon-download" @click="handleDownloadTemplate">模板下载</el-button>
       <div class="file-input">
         <input ref="fileInputRef" type="file" accept=".xls,.xlsx" style="display: none" @change="handleFileChange" />
-        <el-button type="primary" plain icon="el-icon-upload2" @click="handleChooseFile">选择文件</el-button>
+        <el-button icon="el-icon-folder-opened" @click="handleChooseFile">选择文件</el-button>
         <span class="file-name">{{ fileName }}</span>
-        <el-button type="primary" plain :loading="uploading" @click="handleUpload">上传数据</el-button>
+        <el-button type="primary" icon="el-icon-upload2" :loading="uploading" @click="handleUpload">上传数据</el-button>
       </div>
     </div>
 

frontend/src/views/student/studentInfo/index.vue

@@ -62,7 +62,7 @@
         </el-row>
 
         <div class="search-actions">
-          <el-button class="gray-btn" @click="handleSearch">查询</el-button>
+          <el-button type="primary" icon="el-icon-search" @click="handleSearch">查询</el-button>
         </div>
       </el-form>
     </el-card>
@@ -484,21 +484,5 @@ export default {
     width: 100%;
   }
 
-  .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>