激活工具时，按下F键不松手，鼠标滑动使用工具时，样式会发生改变

src/views/trials/trials-panel/reading/dicoms3D/components/PetCtViewport.vue

@@ -790,6 +790,7 @@ export default {
   width: 100%;
   height: 100%;
   position: relative;
+  cursor: default !important;
 
   .left-top-text {
     position: absolute;

src/views/trials/trials-panel/reading/dicoms3D/components/Viewport.vue

@@ -541,6 +541,7 @@ export default {
   width:100%;
   height:100%;
   position: relative;
+  cursor: default !important;
   .left-top-text {
     position: absolute;
     left: 5px;

src/views/trials/trials-panel/reading/visit-review/components/FileViewer.vue

@@ -1306,6 +1306,10 @@ export default {
 }
 </script>
 <style lang="scss" scoped>
+.content {
+  cursor: default !important;
+}
+
 .none-dicom-viewer {
   display: flex;
   flex-direction: column;