品牌编辑页面字段映射表格改为自适应宽度

frontend/src/views/brand/BrandEditPage.vue

@@ -13,11 +13,11 @@
     </el-card>
     <el-card shadow="hover">
       <template #header><div style="display:flex;justify-content:space-between"><span>字段映射列表</span><el-button size="small" @click="addMapping">+ 新增映射</el-button></div></template>
-      <el-table :data="form.mappings" border stripe size="small">
-        <el-table-column label="标准字段" width="160"><template #default="{row}"><el-select v-model="row.standardField"><el-option v-for="f in standardFields" :key="f" :label="f" :value="f" /></el-select></template></el-table-column>
-        <el-table-column label="字段名" width="120"><template #default="{row}"><el-input v-model="row.fieldName" /></template></el-table-column>
-        <el-table-column label="匹配方式" width="100"><template #default="{row}"><el-select v-model="row.matchBy"><el-option label="id" value="id" /><el-option label="desc" value="desc" /></el-select></template></el-table-column>
-        <el-table-column label="数据类型" width="100"><template #default="{row}"><el-select v-model="row.dataType"><el-option label="string" value="string" /><el-option label="number" value="number" /></el-select></template></el-table-column>
+      <el-table :data="form.mappings" border stripe size="small" style="width:100%">
+        <el-table-column label="标准字段" min-width="180"><template #default="{row}"><el-select v-model="row.standardField" style="width:100%"><el-option v-for="f in standardFields" :key="f" :label="f" :value="f" /></el-select></template></el-table-column>
+        <el-table-column label="字段名" min-width="140"><template #default="{row}"><el-input v-model="row.fieldName" /></template></el-table-column>
+        <el-table-column label="匹配方式" min-width="110"><template #default="{row}"><el-select v-model="row.matchBy" style="width:100%"><el-option label="id" value="id" /><el-option label="desc" value="desc" /></el-select></template></el-table-column>
+        <el-table-column label="数据类型" min-width="110"><template #default="{row}"><el-select v-model="row.dataType" style="width:100%"><el-option label="string" value="string" /><el-option label="number" value="number" /></el-select></template></el-table-column>
         <el-table-column label="必填" width="60" align="center"><template #default="{row}"><el-checkbox v-model="row.isRequired" :true-value="1" :false-value="0" /></template></el-table-column>
         <el-table-column label="操作" width="80" align="center"><template #default="{ $index }"><el-button link type="danger" @click="form.mappings.splice($index, 1)">删除</el-button></template></el-table-column>
       </el-table>