/* Knowledgeトップ。全記事をテーマごとに表示する一覧。 */
.knowledge-hero {
	position: relative;
	display: flex;
	min-height: 24rem;
	overflow: hidden;
	background: var(--color-background-subtle);
}

.knowledge-hero__media {
	position: absolute;
	inset: 0;
}

.knowledge-hero__media::after {
	position: absolute;
	inset: 0;
	content: "";
	background: linear-gradient(90deg, var(--color-background) 0%, var(--color-background-overlay) 34%, transparent 85%);
}

.knowledge-hero__media img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center;
}

.knowledge-hero__inner {
	position: relative;
	display: flex;
	align-items: center;
	width: min(calc(100% - 40px), var(--container));
	max-width: var(--container);
	margin-inline: auto;
	padding-block: 3.5rem;
}

.knowledge-hero__content {
	width: min(62%, 42rem);
}

.knowledge-hero h1 {
	margin: 0;
	color: var(--color-primary-deepest);
	font-size: var(--font-size-h1);
	line-height: 1.4;
	letter-spacing: -0.025em;
}

.knowledge-hero h1 span {
	color: var(--color-primary);
}

.knowledge-hero__lead {
	max-width: 38rem;
	margin: 1.5rem 0 0;
	color: var(--color-text);
	font-size: var(--font-size-body);
	line-height: 1.9;
}

.knowledge-library {
	padding-block: 0 4rem;
}

.knowledge-library-themes {
	display: grid;
}

.knowledge-library-theme {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 3fr);
	gap: 2.5rem;
	min-width: 0;
	padding-block: 3rem;
	scroll-margin-top: 10rem;
}

.knowledge-library-theme__head {
	min-width: 0;
	padding-top: 0.125rem;
}

.knowledge-library-theme__title {
	margin: 0;
	color: var(--color-primary-deepest);
	font-size: var(--font-size-h3);
	line-height: 1.5;
	letter-spacing: -0.02em;
}

.knowledge-library-theme__title::after {
	display: block;
	width: 2.75rem;
	height: 2px;
	margin-top: 1rem;
	content: "";
	background: var(--color-primary);
}

.knowledge-library-theme__head p {
	max-width: 20rem;
	margin: 1.25rem 0 0;
	color: var(--color-text-secondary);
	font-size: var(--font-size-body);
	line-height: 1.9;
}

.knowledge-library-links {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	column-gap: 2rem;
	align-items: start;
	min-width: 0;
	padding: 0;
	margin: 0;
	list-style: none;
}

.knowledge-library-links li {
	min-width: 0;
	border-bottom: 1px solid var(--color-border);
}

.knowledge-library-links a {
	position: relative;
	display: block;
	min-height: 2.75rem;
	padding: 0.75rem 1.5rem 0.75rem 0.25rem;
	color: var(--color-text);
	font-size: var(--font-size-body);
	line-height: 1.8;
	overflow-wrap: anywhere;
	text-decoration: none;
}

.knowledge-library-links a::after {
	position: absolute;
	top: 0.75rem;
	right: 0.25rem;
	content: "›";
	color: var(--color-primary);
}

.knowledge-library-links a:hover,
.knowledge-library-links a:focus-visible {
	color: var(--color-primary-hover);
}

@media (max-width: 1100px) {
	.knowledge-library-theme {
		grid-template-columns: 1fr;
		gap: 1.5rem;
	}

	.knowledge-library-theme__head p {
		max-width: 36rem;
	}
}

@media (max-width: 768px) {
	.knowledge-hero {
		min-height: 30rem;
	}

	.knowledge-hero__media::after {
		background: linear-gradient(
			180deg,
			color-mix(in srgb, var(--color-primary-deepest) 18%, transparent) 0%,
			color-mix(in srgb, var(--color-primary-deepest) 82%, transparent) 100%
		);
	}

	.knowledge-hero__media img {
		object-position: 68% center;
	}

	.knowledge-hero__inner {
		align-items: center;
		min-height: 30rem;
		padding-block: 3rem;
	}

	.knowledge-hero__content {
		width: 100%;
	}

	.knowledge-hero h1,
	.knowledge-hero h1 span {
		color: var(--color-text-inverse);
	}

	.knowledge-hero h1 br,
	.knowledge-hero__lead br {
		display: none;
	}

	.knowledge-hero__lead {
		margin-top: 1rem;
		color: var(--color-text-inverse-soft);
		line-height: 1.8;
	}

	.knowledge-library {
		padding-bottom: 2rem;
	}

	.knowledge-library-theme {
		padding-block: 2rem;
		scroll-margin-top: 5rem;
	}

	.knowledge-library-theme__head {
		padding-top: 0;
		text-align: center;
	}

	.knowledge-library-theme__title::after {
		margin-inline: auto;
	}

	.knowledge-library-theme__head p {
		max-width: 28rem;
		margin: 1rem auto 0;
		color: var(--color-text-secondary);
		font-weight: 400;
		line-height: 1.8;
	}

	.knowledge-library-links {
		grid-template-columns: 1fr;
	}
}