style(teacher/formPage): 调整表单页面样式细节

优化作业类型选择器的样式，包括复选框大小和文字大小
调整表单字段的内边距以改善视觉效果

@@ -2,7 +2,7 @@
  * @Author: hookehuyr hookehuyr@gmail.com
  * @Date: 2025-01-20 10:00:00
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-10-14 13:48:57
+ * @LastEditTime: 2025-10-28 10:15:33
  * @FilePath: /mlaj/src/views/teacher/formPage.vue
  * @Description: 教师作业新增表单页面
 -->
@@ -44,15 +44,15 @@
 
                 <!-- 作品类型选择 - 只在设置作业时显示 -->
                 <div v-if="$route.query.type === 'homework'" class="mb-4">
-                  <label class="setting-label">作业类型</label>
-                  <van-checkbox-group v-model="formData.attachment_type" direction="horizontal" checked-color="#4caf50" icon-size="15px">
+                  <label class="setting-label">作业类型 (可多选)</label>
+                  <van-checkbox-group v-model="formData.attachment_type" direction="horizontal" checked-color="#4caf50" icon-size="1.05rem">
                     <van-checkbox
                       v-for="option in attachmentTypeOptions"
                       :key="option.name"
                       :name="option.name"
                       shape="square"
                     >
-                      <span class="text-sm">{{ option.text }}</span>
+                      <span style="font-size: 1rem;">{{ option.text }}</span>
                     </van-checkbox>
                   </van-checkbox-group>
                 </div>
@@ -1041,7 +1041,7 @@ onMounted(async () => {
 .cycle-field {
   background: #f5f5f5;
   border-radius: 8px;
-  padding: 2px 0;
+  padding: 0.3rem;
 }
 
 :deep(.cycle-field .van-field__control) {
@@ -1066,6 +1066,7 @@ onMounted(async () => {
   background: #f5f5f5;
   border-radius: 8px;
   flex: 1;
+  padding: 0.25rem;
 }
 
 /* 时间设置 */