diff --git a/src/views/ebiz/questions/QuestionsDetail.vue b/src/views/ebiz/questions/QuestionsDetail.vue
index eef44278c..f1ebbe467 100644
--- a/src/views/ebiz/questions/QuestionsDetail.vue
+++ b/src/views/ebiz/questions/QuestionsDetail.vue
@@ -500,6 +500,10 @@ export default {
 }
 </script>
 <style lang="scss" scoped>
+.bottom-btn {
+  z-index: 1;
+}
+
 /deep/ .van-dialog__header {
   padding-top: 1em;
 }