.page {
	min-height: 640px;
}

.page-head {
	position: relative;
	padding: 72px 0 0;
	overflow: hidden;
	isolation: isolate;
	background:
		linear-gradient(
			120deg,
			var(--color-accent) 0%,
			var(--color-red-alpha-3) 35%,
			var(--color-dark-alpha-4) 70%
		),
		var(--color-dark);
}

.page-head::before {
	content: "";
	position: absolute;
	inset: 0;
	z-index: -2;
	pointer-events: none;
	background-image: url("../img/news/bg-visual-head-01.png");
	background-repeat: no-repeat;
	background-position: 95% 25%;
	background-size: 300px auto;
	opacity: 1;
}

.page-head::after {
	content: "";
	position: absolute;
	inset: 0;
	z-index: -1;
	pointer-events: none;
	background:
		linear-gradient(
			180deg,
			var(--color-dark-alpha-4) 0%,
			var(--color-dark-alpha-4) 40%,
			var(--color-dark-alpha-2) 72%,
			var(--color-dark) 100%
		),
		var(--color-dark-alpha-1);
}

.page-head__inner {
	position: relative;
	z-index: 1;
	width: calc(100% - 32px);
	margin: 0 auto;
}

.page-head__title {
	margin: 0;
	font-size: clamp(2rem, 1.5rem + 3%, 4rem);
	line-height: 1.1;
}

.page-head__title::after {
	content: "";
	display: block;
	height: 1px;
	margin-top: 8px;
	background: linear-gradient(
		90deg,
		var(--color-accent),
		var(--color-accent-alpha-3),
		transparent
	);
}

.page-head__text {
	margin: 18px 0 0;
	color: var(--color-light);
}

.news-filter {
	display: flex;
	gap: 10px;
	width: 100%;
	max-width: 768px;
	margin: 0 auto 24px;
	padding-bottom: 6px;
	overflow-x: auto;
	scrollbar-width: thin;
	scrollbar-color: var(--color-red) var(--color-dark-soft);
}

.news-filter::-webkit-scrollbar {
	height: 6px;
}

.news-filter::-webkit-scrollbar-track {
	background: var(--color-dark-soft);
}

.news-filter::-webkit-scrollbar-thumb {
	border-radius: 999px;
	background: var(--color-accent);
}

.news-filter__button {
	flex: 0 0 auto;
	border: 1px solid var(--color-white-alpha-3);
	border-radius: var(--radius-sm);
	background: transparent;
	color: var(--color-white-alpha-2);
	padding: 8px 14px;
	cursor: pointer;
}

.news-filter__button.is-active {
	border-color: var(--color-accent);
	background: var(--color-accent-alpha-3);
	color: var(--color-accent);
}

.news-list {
	display: grid;
	width: 100%;
	max-width: 768px;
	margin-right: auto;
	margin-left: auto;
	gap: 24px;
}

/* Dreamweaver側のCSS解析が新しめの構文に対応していない可能性があるため、警告が出る場合がある */
.news-card {
	display: grid;
	grid-template-columns: 112px 1fr;
	min-height: 112px;
	color: var(--color-white);
}

.news-card__image {
	width: 112px;
	height: 112px;
	object-fit: cover;
	background: var(--color-dark-soft);
	border-radius: var(--radius-sm);
}

.news-card__body {
	padding: 14px;
}

.news-card__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	align-items: center;
	margin-bottom: 6px;
	color: var(--color-light);
	font-size: 0.8rem;
}

.news-card__category {
	border: 1px solid var(--color-accent-alpha-2);
	border-radius: var(--radius-sm);
	color: var(--color-accent);
	padding: 1px 8px;
}

.news-card__title {
	margin: 0;
	font-size: 0.98rem;
	line-height: 1.45;
}

.news-card__title,
.news-detail__title {
	white-space: pre-line;
}

.news-card__summary {
	display: none;
	margin: 8px 0 0;
	color: var(--color-light);
	font-size: 0.875rem;
}

.news-detail {
	width: 100%;
	max-width: 640px;
	margin: 0 auto;
}

.news-detail__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	align-items: center;
	margin-bottom: 14px;
	color: var(--color-light);
	font-size: 0.875rem;
}

.news-detail__category {
	border: 1px solid var(--color-accent-alpha-2);
	border-radius: var(--radius-sm);
	color: var(--color-accent);
	padding: 2px 10px;
}

.news-detail__title {
	margin: 0 0 22px;
	font-size: clamp(1.7rem, 1.3rem + 2.2%, 3rem);
	line-height: 1.35;
}

.news-detail__image {
	width: 100%;
	aspect-ratio: 1 / 1;
	object-fit: cover;
	border-radius: var(--radius-lg);
	margin-bottom: 28px;
	background: var(--color-dark-soft);
}

.news-detail__body {
	color: var(--color-white);
}

.news-detail__body p {
	margin: 0 0 1.2em;
}

.news-empty {
	padding: 32px;
	border: 1px solid var(--color-white-alpha-3);
	border-radius: var(--radius-lg);
	color: var(--color-light);
	text-align: center;
}

@media (min-width: 768px) {
	.page-news .page-head__inner,
	.page-news .section__inner {
		width: calc(100% - 64px);
		max-width: 960px;
	}

	.page-news .news-filter {
		max-width: 960px;
		gap: 12px;
		margin-bottom: 32px;
	}

	.page-news .news-filter__button {
		padding: 10px 18px;
		font-size: 0.9rem;
	}

	.page-news .news-list {
		max-width: 960px;
		gap: 28px;
	}

	.page-news .news-card {
		grid-template-columns: 180px 1fr;
		min-height: 180px;
	}

	.page-news .news-card__image {
		width: 180px;
		height: 180px;
	}

	.page-news .news-card__body {
		padding: 20px 24px;
	}

	.page-news .news-card__meta {
		margin-bottom: 10px;
		font-size: 0.875rem;
	}

	.page-news .news-card__title {
		font-size: 1.15rem;
		line-height: 1.6;
	}

	.page-news .news-card__summary {
		display: block;
		margin-top: 12px;
		font-size: 0.95rem;
		line-height: 1.7;
	}

	.page-news .page-head__title {
		font-size: 2.8rem;
	}
}