Update custom.css

custom.css

@@ -421,27 +421,4 @@ span.ͼw {
 /* 隐藏原始的折叠按钮 */
 div.flex.items-center.gap-0\.5 button.flex.gap-1.items-center:not(.run-code-button) {
     display: none;
-}
-
-/* 丝滑折叠侧栏 */
-@keyframes fade-in {
-  0% {
-    opacity: 0;
-  }
-  30% {
-    opacity: 0;
-  }
-  100% {
-    opacity: 1;
-  }
-}
-#sidebar {
-  transition-timing-function: cubic-bezier(0.3, 0.3, 0.2, 1);
-  transition-duration: 0.5s;
-  --tw-duration: 0.5;
-  --tw-ease: cubic-bezier(0.3, 0.3, 0.2, 1);
-}
-
-#sidebar[data-state='true'] {
-  animation: 0.4s ease-in forwards fade-in !important;
 }