diff --git a/src/assets/scss/Dengxian.ttf b/src/assets/scss/Dengxian.ttf
new file mode 100644
index 0000000..7438a2a
Binary files /dev/null and b/src/assets/scss/Dengxian.ttf differ
diff --git a/src/assets/scss/index.scss b/src/assets/scss/index.scss
index 0466263..efbf4cc 100644
--- a/src/assets/scss/index.scss
+++ b/src/assets/scss/index.scss
@@ -1,11 +1,58 @@
+@font-face {
+  font-family: 'Dengxian';
+  src: url('@/assets/scss/Dengxian.ttf') format('truetype');
+  font-weight: 400;
+  font-style: normal;
+  font-display: swap;
+}
+/* 全局强制继承 */
+html, body, #app, .cesium-widget, .mars3d-container,
+.mars3d-popup, .mars3d-tooltip, .mars3d-contextmenu,
+.mars3d-measure-result, .cesium-credit-text,
+.el-button, .el-input, .el-select, .el-table, .el-form, .el-dialog,
+.el-message, .el-notification, .el-tooltip,
+.el-menu, .el-breadcrumb, .el-pagination,
+.el-radio, .el-checkbox, .el-tag, .el-badge,
+.el-alert, .el-steps, .el-tabs, .el-calendar,
+.el-date-picker, .el-cascader, .el-transfer,
+.el-slider, .el-upload,
+.el-empty, .el-result,
+.el-loading-text,.el-table,
+.el-table__body-wrapper span,
+.el-table__footer-wrapper span,
+.el-table__header-wrapper span,
+.el-table__fixed span,
+.el-table__fixed-right span,.vxe-table *,
+.vxe-table--render-default .vxe-cell span,
+.vxe-table--render-default .vxe-cell--title,
+.vxe-table--render-default .vxe-cell--label,
+.vxe-toolbar *,
+.vxe-pager *,
+.vxe-modal--wrapper *,
+.vxe-tooltip--wrapper *  {
+  font-family: 'DengXian', sans-serif !important;
+}
+/* 覆盖 mars3d 所有内部 UI */
+.mars3d-draw-tooltip,
+.mars3d-measure-tooltip,
+.mars3d-contextmenu *,
+.mars3d-popup *,
+.mars3d-measure-result *,
+.mars3d-control-btn {
+  font-family: 'DengXian', sans-serif !important;
+}
+
+.Dengxian {
+  font-family: 'Dengxian' !important;
+}
+
 body,
 html {
   margin: 0;
   padding: 0;
   width: 100%;
   height: 100%;
-  font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB,
-    Microsoft YaHei, Arial, sans-serif;
+  font-family: 'Dengxian' !important;
   user-select: none;
   scrollbar-width: none;
   -ms-overflow-style: none;
diff --git a/src/views/header/index.vue b/src/views/header/index.vue
index 58a5b47..278f6e7 100644
--- a/src/views/header/index.vue
+++ b/src/views/header/index.vue
@@ -64,7 +64,7 @@ $label_height: 50px;
       line-height: $label_height;
       padding: 0 30px;
       margin-right: 20px;
-      font-family: 'HarmonyOS Sans';
+      // font-family: 'HarmonyOS Sans';
       font-weight: 400;
       font-size: 20px;
       cursor: pointer;