diff --git a/frontend/src/index.css b/frontend/src/index.css
index 921b81e..e80f671 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -73,3 +73,8 @@ body {
     opacity: 1;
   }
 }
+
+/* 라이트박스 스크롤바 숨기기 */
+.lightbox-no-scrollbar::-webkit-scrollbar {
+  display: none;
+}
diff --git a/frontend/src/pages/pc/AlbumDetail.jsx b/frontend/src/pages/pc/AlbumDetail.jsx
index 9482afb..1bdb5cd 100644
--- a/frontend/src/pages/pc/AlbumDetail.jsx
+++ b/frontend/src/pages/pc/AlbumDetail.jsx
@@ -474,10 +474,11 @@ function AlbumDetail() {
                 animate={{ opacity: 1 }}
                 exit={{ opacity: 0 }}
                 transition={{ duration: 0.2 }}
-                className="fixed inset-0 bg-black/95 z-50 overflow-auto"
+                className="fixed inset-0 bg-black/95 z-50 overflow-scroll lightbox-no-scrollbar"
+                style={{ scrollbarWidth: 'none', msOverflowStyle: 'none' }}
             >
                 {/* 내부 컨테이너 - min-width, min-height 적용 */}
-                <div className="min-w-[1200px] min-h-[800px] w-full h-full relative flex items-center justify-center">
+                <div className="min-w-[1400px] min-h-[1200px] w-full h-full relative flex items-center justify-center">
                     {/* 상단 버튼들 */}
                     <div className="absolute top-6 right-6 flex gap-3 z-10">
                         {/* 다운로드 버튼 */}
@@ -525,7 +526,7 @@ function AlbumDetail() {
                             <motion.video
                                 key={lightbox.index}
                                 src={lightbox.images[lightbox.index]}
-                                className={`max-w-[1100px] max-h-[75vh] object-contain transition-opacity duration-200 ${imageLoaded ? 'opacity-100' : 'opacity-0'}`}
+                                className={`max-w-[1100px] max-h-[900px] object-contain transition-opacity duration-200 ${imageLoaded ? 'opacity-100' : 'opacity-0'}`}
                                 onClick={(e) => e.stopPropagation()}
                                 onCanPlay={() => setImageLoaded(true)}
                                 initial={{ x: slideDirection * 100 }}
@@ -539,7 +540,7 @@ function AlbumDetail() {
                                 key={lightbox.index}
                                 src={lightbox.images[lightbox.index]}
                                 alt="확대 이미지"
-                                className={`max-w-[1100px] max-h-[75vh] object-contain transition-opacity duration-200 ${imageLoaded ? 'opacity-100' : 'opacity-0'}`}
+                                className={`max-w-[1100px] max-h-[900px] object-contain transition-opacity duration-200 ${imageLoaded ? 'opacity-100' : 'opacity-0'}`}
                                 onClick={(e) => e.stopPropagation()}
                                 onLoad={() => setImageLoaded(true)}
                                 initial={{ x: slideDirection * 100 }}
diff --git a/frontend/src/pages/pc/AlbumGallery.jsx b/frontend/src/pages/pc/AlbumGallery.jsx
index f53c081..f5fde02 100644
--- a/frontend/src/pages/pc/AlbumGallery.jsx
+++ b/frontend/src/pages/pc/AlbumGallery.jsx
@@ -308,10 +308,11 @@ function AlbumGallery() {
                 animate={{ opacity: 1 }}
                 exit={{ opacity: 0 }}
                 transition={{ duration: 0.2 }}
-                className="fixed inset-0 bg-black/95 z-50 overflow-auto"
+                className="fixed inset-0 bg-black/95 z-50 overflow-scroll lightbox-no-scrollbar"
+                style={{ scrollbarWidth: 'none', msOverflowStyle: 'none' }}
             >
                 {/* 내부 컨테이너 - min-width, min-height 적용 (화면 줄여도 크기 유지, 스크롤) */}
-                <div className="min-w-[1200px] min-h-[800px] w-full h-full relative flex items-center justify-center">
+                <div className="min-w-[1400px] min-h-[1200px] w-full h-full relative flex items-center justify-center">
                     {/* 상단 버튼들 */}
                     <div className="absolute top-6 right-6 flex gap-3 z-10">
                         <button 
@@ -356,7 +357,7 @@ function AlbumGallery() {
                             key={lightbox.index}
                             src={photos[lightbox.index]?.originalUrl}
                             alt="확대 이미지"
-                            className={`max-w-[1100px] max-h-[75vh] object-contain transition-opacity duration-200 ${imageLoaded ? 'opacity-100' : 'opacity-0'}`}
+                            className={`max-w-[1100px] max-h-[900px] object-contain transition-opacity duration-200 ${imageLoaded ? 'opacity-100' : 'opacity-0'}`}
                             onLoad={() => setImageLoaded(true)}
                             initial={{ x: slideDirection * 100 }}
                             animate={{ x: 0 }}