fix(site): 修复暗色模式

Author: shenjunjian

examples/sites/src/views/components-doc/components/demo.vue

@@ -337,13 +337,15 @@ onBeforeUnmount(() => {
 
 :global(.dark .pc-demo-container.pc-demo-container) {
   background-color: #1a1a1a;
+  border: none;
 }
 .pc-demo-container {
   display: flex;
   flex-direction: column;
   color: var(--tv-color-text);
-  background: var(--tv-color-bg);
+  background: #fff;
   border-radius: 6px;
+  border: 1px solid #dcdfe6;
   padding: 26px 18px 42px;
 
   .pc-demo {

examples/sites/src/views/components-doc/components/float-settings.vue

@@ -338,7 +338,7 @@ export default defineComponent({
         font-size: 14px;
         line-height: 32px;
         font-weight: 600;
-        color: #000000;
+        color: var(--tv-color-text);
       }
 
       .style-settings-options-group {
@@ -361,7 +361,10 @@ export default defineComponent({
 }
 .tiny-popover.tiny-popper.theme-settings-popover {
   border-radius: 12px;
-  background-color: #ffffff;
+  background-color: var(--tv-color-bg);
+}
+.dark .tiny-popover.tiny-popper.theme-settings-popover {
+  background-color: var(--tv-color-bg-dark);
 }
 
 .theme-settings-menu {