diff --git a/healthlink-his-ui/src/views/doctorstation/components/surgery/surgeryApplication.vue b/healthlink-his-ui/src/views/doctorstation/components/surgery/surgeryApplication.vue
index 1512adfa5..15887323e 100755
--- a/healthlink-his-ui/src/views/doctorstation/components/surgery/surgeryApplication.vue
+++ b/healthlink-his-ui/src/views/doctorstation/components/surgery/surgeryApplication.vue
@@ -1813,14 +1813,24 @@ defineExpose({
   padding: 20px 0;
 }
 
-/* Bug #770: 对话框 body 滚动区域限制，防止 footer 按钮遮盖表单字段 */
+/* Bug #770: Dialog flex 布局 — 防止 footer 按钮遮盖表单字段 */
+:deep(.el-dialog) {
+  display: flex;
+  flex-direction: column;
+  max-height: 90vh;
+  margin-top: 5vh;
+}
+
+:deep(.el-dialog__header) {
+  flex-shrink: 0;
+}
+
 :deep(.el-dialog__body) {
-  max-height: calc(100vh - 220px);
+  flex: 1;
   overflow-y: auto;
   padding-bottom: 10px;
 }
 
-/* Bug #770: 确保 footer 固定在对话框底部，不随内容滚动 */
 :deep(.el-dialog__footer) {
   flex-shrink: 0;
   border-top: 1px solid #ebeef5;