/* book_list */
#book_list li { position: relative; }
#book_list li .img_box {aspect-ratio: 4/3;}
#book_list li p {height: auto;margin: 15px 0;text-align: center;font-size: 18px;font-weight: 500;}

/* book_area */
#book_area { border-top: 1px var(--g_200) solid; }

/* content_wrap */
#content_wrap #book_list { display: grid; grid-template-columns: repeat(3, 1fr); grid-gap: 1.5em; }

/* album_list */
#album_list {width: 100%;margin: 2.5em auto 0;column-count: 3;gap: 1em;display: grid;grid-template-columns: repeat(3, 1fr);}
#album_list >div img {aspect-ratio:4/3}

@media screen and (min-width: 1161px){
	#book_list li:hover .atag_item:before { opacity: 1; -webkit-transform: scale(1); transform: scale(1); }
	#book_list li:hover span { opacity: 1; }
}
@media screen and (max-width: 768px){
	#content_wrap #book_list, #album_list {grid-template-columns: repeat(2, 1fr);}
}
@media screen and (max-width:640px){
	#content_wrap #book_list { grid-template-columns: 1fr; grid-gap: 3vw; }
}