diff --git a/src/views/demand/consumer-behavior.vue b/src/views/demand/consumer-behavior.vue
index bc84020..75038db 100644
--- a/src/views/demand/consumer-behavior.vue
+++ b/src/views/demand/consumer-behavior.vue
@@ -1772,6 +1772,12 @@ function downloadBuiltInFile(url, fileName) {
 }
 
 :deep(.questionnaire-editor-dialog .el-dialog),
+:deep(.questionnaire-preview-dialog .el-dialog) {
+    border-radius: 12px;
+    color: var(--student-text);
+    background: #ffffff;
+}
+
 /* ===== 结构化问卷预览弹窗 ===== */
 .questionnaire-compose-preview {
     max-height: 60vh;