Revert "feat(cssVar): add new CSS variables for font size and tooltip positioning"

This reverts commit 59e9a32ecb.

packages/artplayer/src/style/selector.less

@@ -9,12 +9,16 @@
         align-items: center;
         text-align: center;
         position: absolute;
+        border-radius: var(--art-border-radius);
         overflow-y: auto;
         overflow-x: hidden;
+        opacity: 0;
+        transform: translateY(10px);
+        pointer-events: none;
         bottom: var(--art-control-height);
         max-height: var(--art-selector-max-height);
-        .art-panel-surface();
-        .art-flyout-hidden();
+        background-color: var(--art-widget-background);
+        transition: all var(--art-transition-duration) ease;
 
         .art-selector-item {
             .art-center();
@@ -24,7 +28,7 @@
             line-height: 1;
 
             &:hover {
-                background-color: var(--art-surface-hover-color);
+                background-color: rgba(255, 255, 255, 0.1);
             }
 
             &:hover,
@@ -36,7 +40,9 @@
 
     &:hover {
         .art-selector-list {
-            .art-flyout-visible();
+            opacity: 1;
+            transform: translateY(0);
+            pointer-events: auto;
         }
     }
-}
+}