@charset "utf-8";

.part-header {
	margin-bottom: 60px;
}

.part-header__ttl {
	
}

/* ----------------------------------------------------------- */

.article-index {
	padding: 0;
}

.article-index-nav {
	
}

.article-index-nav-list {
	list-style: none;
	padding-left: 0;
	display: flex;
	margin: 0 0 3em;
}

.article-index-nav-list li {
	margin-right: 2em;
	list-style: none;
}

.article-index-nav-list a {
	text-decoration: none;
}

.article-index-nav-list .current {
	font-weight: 500;
	color: #000;
	border-bottom: 1px solid currentColor;
}

.popup__target ul {
	list-style: none;
	padding: 0;
}

.popup__target ul li {
	margin-right: 0;
	text-align: center;
}

.popup__target ul a {
	display: block;
}


/* --------------------------------------------- */

.article-index-list {
	list-style: none;
	padding: 0;
}

.article-index__item {
	margin-bottom: 4em;
}

.article__anchor {
	text-decoration: none;
	display: block;
}

.article__anchor:hover {
	text-decoration: none;
}

.article-img {
	position: relative;
	margin-bottom: 1.5em;
	overflow: hidden;
	border-radius: 2px;
}

.article-img img {
	display: block;
	width: 100%;
	transform: scale(1);
	transition: transform 1s cubic-bezier(.17,.84,.44,1);
}

.object-fit .article-img img {
	object-fit: cover;
	height: 220px;
}

a:hover .article-img img {
	transform: scale(1.05);
}

.article-meta {
	margin-bottom: 0.5em;
	font-size: 1.1rem;
	font-weight: 500;
	transition: color 0.5s ease-out;
}

.article-ttl {
	font-size: 1.4rem;
	font-weight: 500;
	color: #555;
	transition: color 0.5s ease-out;
}

.article-txt {
	overflow: hidden;
	height: 5.4em;
	font-size: 1.2rem;
	line-height: 1.8;
	color: #ccc;
	transition: color 0.5s ease-out;
}

a:hover .article-meta {
	color: #000;
}

a:hover .article-ttl {
	color: #000;
}

a:hover .article-txt {
	color: #555;
}

/* ----------------------------------------------------------- */

.js-articles-container .article-index__item {
	transition: transform 0.5s cubic-bezier(0.17, 0.84, 0.44, 1.0), opacity 0.25s ease-in-out;
	transform: translateY(100px);
	opacity: 0;
}

.js-articles-container.show .article-index__item {
	transform: translateY(0);
	opacity: 1;
}

/* -------------------------- */

.js-more {
	position: relative;
	text-align: center;
	margin-bottom: 120px;
	overflow: hidden;
	transition: all 0.5s ease;
}

.js-more.hide {
	
}

.js-more.loading:before {
	content: "";
	position: absolute;
	left: 0;
	top: 0;
	bottom: 0;
	right: 0;
	margin: auto;
	width: 25px;
	height: 25px;
	display: block;
	margin: auto;
	background-image: url(../img/global/indicator_k.png);
	background-repeat: no-repeat;
	background-position: left top;
	background-size: 25px 300px;
	animation: indicatorAnimation 1s steps(12) infinite;
}

.js-more button {
	min-width: 250px;
	padding: 20px;
	overflow: hidden;
	transition: all 0.25s ease;
}

.js-more.hide button {
	opacity: 0;
	cursor: auto;
	pointer-events: none;
}

#article-finish {
	margin: 60px auto 0;
	background-color: rgba(0,0,0,0.2);
	height: 1px;
	max-width: 100px;
	width: 50%;
}


/* ---------------------------------------------------------------------------------------------- */
/* SmartPhone                                                                                     */

/* iPhone 6 over */
@media screen and (min-width: 374px) {
	
}

/* ---------------------------------------------------------------------------------------------- */
/* Tablet                                                                                         */

@media screen and (min-width: 541px) {
	
	.article-index {
		padding-top: 0;
		border-top: none;
	}
	
	.article-index-list {
		display: flex;
		flex-wrap: wrap;
		justify-content: space-between;
	}
	
	.article-index-list:before,
	.article-index-list:after {
		display: block;
		content: "";
		width: calc(50% - 20px);
		height: 1px;
		order: 2;
	}
	
	.article-index__item {
		width: calc(50% - 20px);
		padding: 0;
		box-sizing: border-box;
		order: 1;
	}
	
	.article__anchor {
		padding: 0;
	}
	
}


/* iPad */
@media screen and (min-width: 768px) {
	.article-index-nav {
		padding: 0 2em;
		box-sizing: border-box;
	}
	
	.article-index-nav-list a {
		padding: 0.5em;
	}
	
	.article-index-nav {
		display: flex;
		align-items: center;
		justify-content: space-between;
	}
}

/* ---------------------------------------------------------------------------------------------- */
/* Desktop                                                                                        */

@media screen and (min-width: 1024px) {
	
	.part-header {
		margin-bottom: 80px;
		padding-top: 80px;
	}
	
	.part-header__ttl .en {
		font-size: 3.8rem;
	}
	
	.article-index {
		
	}
	
	.article-index-list:before,
	.article-index-list:after {
		width: calc(33.333% - 20px);
	}
	
	.article-index__item {
		width: calc(33.333% - 20px);
	}
}

@media screen and (min-width: 1281px) {
	/* 3row */
	.article-index-list:before,
	.article-index-list:after {
		width: calc(33.333% - 30px);
	}
	
	.article-index__item {
		width: calc(33.333% - 30px);
	}
	
	/* 4row */
	/*
	.article-index-list:before,
	.article-index-list:after {
		width: calc(25% - 35px);
	}
	
	.article-index__item {
		width: calc(25% - 35px);
	}*/
}