update style

packages/artplayer/src/style/artplayer.less

@@ -5,15 +5,17 @@
     height: 100%;
     outline: 0;
     zoom: 1;
-    color: #fff;
+    padding: 0;
     text-align: left;
     direction: ltr;
     font-size: 14px;
     line-height: 1.3;
     overflow: hidden;
     user-select: none;
-    background-color: #000;
-    text-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
+    box-sizing: border-box;
+    color: var(--art-font-color);
+    background-color: var(--art-background-color);
+    text-shadow: 0 0 2px var(--art-text-shadow-color);
     font-family: PingFang SC, Helvetica Neue, Microsoft YaHei, Roboto, Arial, sans-serif;
     -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
     -ms-touch-action: manipulation;
@@ -31,7 +33,6 @@
     ::-webkit-scrollbar {
         width: var(--art-scrollbar-size);
         height: var(--art-scrollbar-size);
-        border-radius: 3px;
     }
 
     ::-webkit-scrollbar-thumb {