diff --git a/frontend/src/pages/pc/AlbumDetail.jsx b/frontend/src/pages/pc/AlbumDetail.jsx
index 39fd0e9..96c68df 100644
--- a/frontend/src/pages/pc/AlbumDetail.jsx
+++ b/frontend/src/pages/pc/AlbumDetail.jsx
@@ -37,6 +37,21 @@ function AlbumDetail() {
         setLightbox(prev => ({ ...prev, open: false }));
     }, []);
 
+    // 라이트박스 열릴 때 body 스크롤 숨기기
+    useEffect(() => {
+        if (lightbox.open) {
+            document.documentElement.style.overflow = 'hidden';
+            document.body.style.overflow = 'hidden';
+        } else {
+            document.documentElement.style.overflow = '';
+            document.body.style.overflow = '';
+        }
+        return () => {
+            document.documentElement.style.overflow = '';
+            document.body.style.overflow = '';
+        };
+    }, [lightbox.open]);
+
     // 이미지 다운로드 함수
     const downloadImage = useCallback(async () => {
         const imageUrl = lightbox.images[lightbox.index];
@@ -373,90 +388,96 @@ function AlbumDetail() {
                 animate={{ opacity: 1 }}
                 exit={{ opacity: 0 }}
                 transition={{ duration: 0.2 }}
-                className="fixed inset-0 bg-black/90 z-50 flex items-center justify-center"
+                className="fixed inset-0 bg-black/95 z-50 overflow-auto"
             >
-                {/* 상단 버튼들 */}
-                <div className="absolute top-6 right-6 flex gap-3 z-10">
-                    {/* 다운로드 버튼 */}
-                    <button 
-                        className="text-white/70 hover:text-white transition-colors"
-                        onClick={(e) => {
-                            e.stopPropagation();
-                            downloadImage();
-                        }}
-                    >
-                        <Download size={28} />
-                    </button>
-                    {/* 닫기 버튼 */}
-                    <button 
-                        className="text-white/70 hover:text-white transition-colors"
-                        onClick={closeLightbox}
-                    >
-                        <X size={32} />
-                    </button>
-                </div>
-
-                {/* 이전 버튼 */}
-                {lightbox.images.length > 1 && (
-                    <button 
-                        className="absolute left-6 text-white/70 hover:text-white transition-colors z-10"
-                        onClick={(e) => {
-                            e.stopPropagation();
-                            goToPrev();
-                        }}
-                    >
-                        <ChevronLeft size={48} />
-                    </button>
-                )}
-
-                {/* 로딩 스피너 */}
-                {!imageLoaded && (
-                    <div className="absolute inset-0 flex items-center justify-center">
-                        <div className="animate-spin rounded-full h-12 w-12 border-4 border-white border-t-transparent"></div>
-                    </div>
-                )}
-
-                {/* 이미지 */}
-                <motion.img 
-                    key={lightbox.index}
-                    src={lightbox.images[lightbox.index]}
-                    alt="확대 이미지"
-                    className={`max-w-[90vw] max-h-[90vh] object-contain rounded-lg transition-opacity duration-200 ${imageLoaded ? 'opacity-100' : 'opacity-0'}`}
-                    onClick={(e) => e.stopPropagation()}
-                    onLoad={() => setImageLoaded(true)}
-                    initial={{ x: slideDirection * 100 }}
-                    animate={{ x: 0 }}
-                    transition={{ duration: 0.25, ease: 'easeOut' }}
-                />
-
-                {/* 다음 버튼 */}
-                {lightbox.images.length > 1 && (
-                    <button 
-                        className="absolute right-6 text-white/70 hover:text-white transition-colors z-10"
-                        onClick={(e) => {
-                            e.stopPropagation();
-                            goToNext();
-                        }}
-                    >
-                        <ChevronRight size={48} />
-                    </button>
-                )}
-
-                {/* 인디케이터 - 이미지 2개 이상일 때만 표시 */}
-                {lightbox.images.length > 1 && (
-                <div className="absolute bottom-6 flex gap-2">
-                    {lightbox.images.map((_, i) => (
-                        <button
-                            key={i}
-                            className={`w-2 h-2 rounded-full transition-colors ${i === lightbox.index ? 'bg-white' : 'bg-white/40'}`}
+                {/* 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">
+                    {/* 상단 버튼들 */}
+                    <div className="absolute top-6 right-6 flex gap-3 z-10">
+                        {/* 다운로드 버튼 */}
+                        <button 
+                            className="text-white/70 hover:text-white transition-colors"
                             onClick={(e) => {
                                 e.stopPropagation();
-                                setLightbox({ ...lightbox, index: i });
+                                downloadImage();
                             }}
+                        >
+                            <Download size={28} />
+                        </button>
+                        {/* 닫기 버튼 */}
+                        <button 
+                            className="text-white/70 hover:text-white transition-colors"
+                            onClick={closeLightbox}
+                        >
+                            <X size={32} />
+                        </button>
+                    </div>
+
+                    {/* 이전 버튼 */}
+                    {lightbox.images.length > 1 && (
+                        <button 
+                            className="absolute left-6 p-2 text-white/70 hover:text-white transition-colors z-10"
+                            onClick={(e) => {
+                                e.stopPropagation();
+                                goToPrev();
+                            }}
+                        >
+                            <ChevronLeft size={48} />
+                        </button>
+                    )}
+
+                    {/* 로딩 스피너 */}
+                    {!imageLoaded && (
+                        <div className="absolute inset-0 flex items-center justify-center">
+                            <div className="animate-spin rounded-full h-12 w-12 border-4 border-white border-t-transparent"></div>
+                        </div>
+                    )}
+
+                    {/* 이미지 */}
+                    <div className="flex flex-col items-center mx-24">
+                        <motion.img 
+                            key={lightbox.index}
+                            src={lightbox.images[lightbox.index]}
+                            alt="확대 이미지"
+                            className={`max-w-[1100px] max-h-[75vh] object-contain rounded-lg transition-opacity duration-200 ${imageLoaded ? 'opacity-100' : 'opacity-0'}`}
+                            onClick={(e) => e.stopPropagation()}
+                            onLoad={() => setImageLoaded(true)}
+                            initial={{ x: slideDirection * 100 }}
+                            animate={{ x: 0 }}
+                            transition={{ duration: 0.25, ease: 'easeOut' }}
                         />
-                    ))}
+                    </div>
+
+                    {/* 다음 버튼 */}
+                    {lightbox.images.length > 1 && (
+                        <button 
+                            className="absolute right-6 p-2 text-white/70 hover:text-white transition-colors z-10"
+                            onClick={(e) => {
+                                e.stopPropagation();
+                                goToNext();
+                            }}
+                        >
+                            <ChevronRight size={48} />
+                        </button>
+                    )}
+
+                    {/* 인디케이터 */}
+                    {lightbox.images.length > 1 && (
+                        <div className="absolute bottom-6 left-1/2 -translate-x-1/2 flex gap-1.5 overflow-x-auto scrollbar-hide" style={{ maxWidth: '1000px' }}>
+                            {lightbox.images.map((_, i) => (
+                                <button
+                                    key={i}
+                                    className={`w-2 h-2 rounded-full transition-colors flex-shrink-0 ${i === lightbox.index ? 'bg-white' : 'bg-white/40'}`}
+                                    onClick={(e) => {
+                                        e.stopPropagation();
+                                        setImageLoaded(false);
+                                        setLightbox({ ...lightbox, index: i });
+                                    }}
+                                />
+                            ))}
+                        </div>
+                    )}
                 </div>
-                )}
             </motion.div>
         )}
         </AnimatePresence>
diff --git a/frontend/src/pages/pc/AlbumGallery.jsx b/frontend/src/pages/pc/AlbumGallery.jsx
index 75bff93..4ab29c0 100644
--- a/frontend/src/pages/pc/AlbumGallery.jsx
+++ b/frontend/src/pages/pc/AlbumGallery.jsx
@@ -76,6 +76,21 @@ function AlbumGallery() {
         setLightbox(prev => ({ ...prev, open: false }));
     }, []);
 
+    // 라이트박스 열릴 때 body 스크롤 숨기기
+    useEffect(() => {
+        if (lightbox.open) {
+            document.documentElement.style.overflow = 'hidden';
+            document.body.style.overflow = 'hidden';
+        } else {
+            document.documentElement.style.overflow = '';
+            document.body.style.overflow = '';
+        }
+        return () => {
+            document.documentElement.style.overflow = '';
+            document.body.style.overflow = '';
+        };
+    }, [lightbox.open]);
+
     // 이전/다음 이미지
     const goToPrev = useCallback(() => {
         if (photos.length <= 1) return;
@@ -225,80 +240,103 @@ function AlbumGallery() {
                 animate={{ opacity: 1 }}
                 exit={{ opacity: 0 }}
                 transition={{ duration: 0.2 }}
-                className="fixed inset-0 bg-black/95 z-50 flex items-center justify-center"
+                className="fixed inset-0 bg-black/95 z-50 overflow-auto"
             >
-                {/* 상단 버튼들 */}
-                <div className="absolute top-6 right-6 flex gap-3 z-10">
-                    <button 
-                        className="text-white/70 hover:text-white transition-colors"
-                        onClick={downloadImage}
-                    >
-                        <Download size={28} />
-                    </button>
-                    <button 
-                        className="text-white/70 hover:text-white transition-colors"
-                        onClick={closeLightbox}
-                    >
-                        <X size={32} />
-                    </button>
-                </div>
-
-                {/* 카운터 */}
-                <div className="absolute top-6 left-6 text-white/70 text-sm z-10">
-                    {lightbox.index + 1} / {photos.length}
-                </div>
-
-                {/* 이전 버튼 */}
-                {photos.length > 1 && (
-                    <button 
-                        className="absolute left-6 text-white/70 hover:text-white transition-colors z-10"
-                        onClick={goToPrev}
-                    >
-                        <ChevronLeft size={48} />
-                    </button>
-                )}
-
-                {/* 로딩 스피너 */}
-                {!imageLoaded && (
-                    <div className="absolute inset-0 flex items-center justify-center">
-                        <div className="animate-spin rounded-full h-12 w-12 border-4 border-white border-t-transparent"></div>
+                {/* 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">
+                    {/* 상단 버튼들 */}
+                    <div className="absolute top-6 right-6 flex gap-3 z-10">
+                        <button 
+                            className="text-white/70 hover:text-white transition-colors"
+                            onClick={downloadImage}
+                        >
+                            <Download size={28} />
+                        </button>
+                        <button 
+                            className="text-white/70 hover:text-white transition-colors"
+                            onClick={closeLightbox}
+                        >
+                            <X size={32} />
+                        </button>
                     </div>
-                )}
 
-                {/* 이미지 */}
-                <motion.img 
-                    key={lightbox.index}
-                    src={photos[lightbox.index]?.originalUrl}
-                    alt="확대 이미지"
-                    className={`max-w-[90vw] max-h-[85vh] object-contain rounded-lg transition-opacity duration-200 ${imageLoaded ? 'opacity-100' : 'opacity-0'}`}
-                    onLoad={() => setImageLoaded(true)}
-                    initial={{ x: slideDirection * 100 }}
-                    animate={{ x: 0 }}
-                    transition={{ duration: 0.25, ease: 'easeOut' }}
-                />
+                    {/* 카운터 */}
+                    <div className="absolute top-6 left-6 text-white/70 text-sm z-10">
+                        {lightbox.index + 1} / {photos.length}
+                    </div>
 
-                {/* 다음 버튼 */}
-                {photos.length > 1 && (
-                    <button 
-                        className="absolute right-6 text-white/70 hover:text-white transition-colors z-10"
-                        onClick={goToNext}
-                    >
-                        <ChevronRight size={48} />
-                    </button>
-                )}
+                    {/* 이전 버튼 - margin으로 이미지와 간격 */}
+                    {photos.length > 1 && (
+                        <button 
+                            className="absolute left-6 p-2 text-white/70 hover:text-white transition-colors z-10"
+                            onClick={goToPrev}
+                        >
+                            <ChevronLeft size={48} />
+                        </button>
+                    )}
 
-                {/* 하단 점 인디케이터 */}
-                <div className="absolute bottom-6 flex gap-1.5 flex-wrap justify-center max-w-[80vw]">
-                    {photos.map((_, i) => (
-                        <button
-                            key={i}
-                            className={`w-2 h-2 rounded-full transition-colors ${i === lightbox.index ? 'bg-white' : 'bg-white/40'}`}
-                            onClick={() => {
-                                setImageLoaded(false);
-                                setLightbox({ ...lightbox, index: i });
-                            }}
+                    {/* 로딩 스피너 */}
+                    {!imageLoaded && (
+                        <div className="absolute inset-0 flex items-center justify-center">
+                            <div className="animate-spin rounded-full h-12 w-12 border-4 border-white border-t-transparent"></div>
+                        </div>
+                    )}
+
+                    {/* 이미지 + 컨셉 정보 - 양옆 margin으로 화살표와 간격 */}
+                    <div className="flex flex-col items-center mx-24">
+                        <motion.img 
+                            key={lightbox.index}
+                            src={photos[lightbox.index]?.originalUrl}
+                            alt="확대 이미지"
+                            className={`max-w-[1100px] max-h-[75vh] object-contain rounded-lg transition-opacity duration-200 ${imageLoaded ? 'opacity-100' : 'opacity-0'}`}
+                            onLoad={() => setImageLoaded(true)}
+                            initial={{ x: slideDirection * 100 }}
+                            animate={{ x: 0 }}
+                            transition={{ duration: 0.25, ease: 'easeOut' }}
                         />
-                    ))}
+                        {/* 컨셉 정보 - 정보가 있을 때만 표시 */}
+                        {imageLoaded && photos[lightbox.index]?.title && (
+                            <div className="mt-6 flex flex-col items-center gap-2">
+                                <span className="px-4 py-2 bg-white/10 backdrop-blur-sm rounded-full text-white font-medium text-base">
+                                    {photos[lightbox.index]?.title}
+                                </span>
+                                {/* 멤버가 있고 빈 문자열이 아닐 때만 표시, 쉼표로 분리해서 개별 태그 */}
+                                {photos[lightbox.index]?.members && String(photos[lightbox.index]?.members).trim() && (
+                                    <div className="flex items-center gap-2">
+                                        {String(photos[lightbox.index]?.members).split(',').map((member, idx) => (
+                                            <span key={idx} className="px-3 py-1.5 bg-primary/80 rounded-full text-white text-sm">
+                                                {member.trim()}
+                                            </span>
+                                        ))}
+                                    </div>
+                                )}
+                            </div>
+                        )}
+                    </div>
+
+                    {/* 다음 버튼 - margin으로 이미지와 간격 */}
+                    {photos.length > 1 && (
+                        <button 
+                            className="absolute right-6 p-2 text-white/70 hover:text-white transition-colors z-10"
+                            onClick={goToNext}
+                        >
+                            <ChevronRight size={48} />
+                        </button>
+                    )}
+
+                    {/* 하단 점 인디케이터 - 한 줄 고정, 스크롤바 숨김 */}
+                    <div className="absolute bottom-6 left-1/2 -translate-x-1/2 flex gap-1.5 overflow-x-auto scrollbar-hide" style={{ maxWidth: '1000px' }}>
+                        {photos.map((_, i) => (
+                            <button
+                                key={i}
+                                className={`w-2 h-2 rounded-full transition-colors flex-shrink-0 ${i === lightbox.index ? 'bg-white' : 'bg-white/40'}`}
+                                onClick={() => {
+                                    setImageLoaded(false);
+                                    setLightbox({ ...lightbox, index: i });
+                                }}
+                            />
+                        ))}
+                    </div>
                 </div>
             </motion.div>
         )}