diff --git a/src/dialog/asset-details/index.tsx b/src/dialog/asset-details/index.tsx
index 6e993b6..f724af8 100644
--- a/src/dialog/asset-details/index.tsx
+++ b/src/dialog/asset-details/index.tsx
@@ -481,14 +481,14 @@ export default function AssetDetailsDialog({
               {isDetailLoading ? <div className="assetDetails__previewLoading" aria-hidden /> : null}
               {(() => {
                 if (asset == null) return null;
-                if (asset.type === 1 || (asset.type === 4)) {
+                if (asset.type === 1 || (asset.type === 4 && asset.taskInfo?.type === 1)) {
                   return (
                     <div className="assetDetails__previewImgContainer">
                       <img className="assetDetails__previewImg" src={asset.images?.[0]} />
                     </div>
                   );
                 }
-                if (asset.type === 2) {
+                if (asset.type === 2 || (asset.type === 4 && asset.taskInfo?.type === 2)) {
                   return (
                     <div className="assetDetails__previewImgContainer">
                       <video controls playsInline preload="metadata">
diff --git a/src/layouts/layoutContentModalMount.ts b/src/layouts/layoutContentModalMount.ts
index 9cf1b89..4205b33 100644
--- a/src/layouts/layoutContentModalMount.ts
+++ b/src/layouts/layoutContentModalMount.ts
@@ -23,13 +23,10 @@ export function getLayoutContentModalMount(): HTMLElement | null {
   return layoutContentModalMountEl;
 }
 
-/** 全屏详情弹窗打开时锁住背后滚动层 */
+/** 全屏详情弹窗打开时锁住背后滚动层（保留 scrollTop，仅禁止滚动） */
 export function lockLayoutContentScroll(): void {
   layoutContentScrollLockCount += 1;
-  const scroll = layoutContentScrollEl;
-  if (scroll == null) return;
-  scroll.scrollTop = 0;
-  scroll.classList.add(LAYOUT_CONTENT_SCROLL_LOCK_CLASS);
+  layoutContentScrollEl?.classList.add(LAYOUT_CONTENT_SCROLL_LOCK_CLASS);
 }
 
 export function unlockLayoutContentScroll(): void {
diff --git a/src/pages/Create/panels/MyCreationsPanel/index.scss b/src/pages/Create/panels/MyCreationsPanel/index.scss
index 51fecad..102d6b5 100644
--- a/src/pages/Create/panels/MyCreationsPanel/index.scss
+++ b/src/pages/Create/panels/MyCreationsPanel/index.scss
@@ -81,6 +81,7 @@
   opacity: 1;
   transition: opacity 0.18s ease;
   pointer-events: none;
+  z-index: 1;
 }
 
 .createPage__myCreationsListItem_video:hover .createPage__myCreationsVideoHoverOverlay {