fix: 修复长度宽度面积三列在一行的样式

src/pages/product/manage.vue

@@ -469,6 +469,28 @@ export default {
   margin-bottom: 24rpx;
 }
 
+.form-row {
+  display: flex;
+  gap: 20rpx;
+}
+
+.form-row .half {
+  flex: 1;
+}
+
+.size-row {
+  display: flex;
+  gap: 10rpx;
+}
+
+.size-row .half {
+  flex: 1;
+}
+
+.form-row.three .half {
+  flex: 1;
+}
+
 .label {
   display: block;
   font-size: 26rpx;