/*--------------------------------------------------------------
10.0 電子書籍告知
--------------------------------------------------------------*/
.dm-book-promo,
.dm-book-page {
	--dm-book-blue: #2854a1;
	--dm-book-blue-dark: #17366f;
	--dm-book-blue-soft: #edf3fc;
	--dm-book-gold: #b7892f;
	--dm-book-gold-light: #ead9a8;
	--dm-book-ink: #17243a;
	--dm-book-muted: #5c6878;
	--dm-book-line: #dce4ef;
	--dm-book-red: #8d1118;
	color: var(--dm-book-ink);
	font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
}

.dm-book-promo {
	padding: 64px 24px;
	background: #f4f7fb;
}

.dm-book-promo__inner {
	position: relative;
	display: grid;
	grid-template-columns: minmax(260px, 34%) 1fr;
	max-width: 1140px;
	min-height: 420px;
	margin: 0 auto;
	overflow: hidden;
	border-top: 8px solid var(--dm-book-blue);
	background: linear-gradient(110deg, #ffffff 0%, #f4f8ff 58%, #e1ebfb 100%);
	box-shadow: 0 18px 52px rgba(26, 52, 94, 0.16);
}

.dm-book-promo__inner::after {
	position: absolute;
	right: -90px;
	bottom: -150px;
	width: 420px;
	height: 420px;
	border: 1px solid rgba(40, 84, 161, 0.16);
	border-radius: 50%;
	content: "";
}

.dm-book-promo__cover-area {
	position: relative;
	z-index: 1;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 34px;
	background: linear-gradient(145deg, var(--dm-book-blue-dark), #0d203f);
}

.dm-book-promo__cover-area::before {
	position: absolute;
	inset: 18px;
	border: 1px solid rgba(234, 217, 168, 0.36);
	content: "";
}

.dm-book-promo__cover {
	position: relative;
	z-index: 2;
	display: block;
	width: min(216px, 88%);
	height: auto;
	margin: 0;
	box-shadow: 0 18px 36px rgba(0, 0, 0, 0.38);
}

.dm-book-promo__content {
	position: relative;
	z-index: 2;
	display: flex;
	min-width: 0;
	flex-direction: column;
	justify-content: center;
	padding: 44px 58px 40px;
}

.dm-book-promo__label {
	display: inline-flex;
	align-items: center;
	align-self: flex-start;
	min-height: 30px;
	margin: 0 0 18px;
	padding: 2px 14px;
	background: var(--dm-book-red);
	color: #ffffff;
	font-size: 13px;
	font-weight: 800;
	letter-spacing: 0.12em;
}

.dm-book-promo__title {
	margin: 0;
	color: var(--dm-book-ink);
	font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
	font-size: clamp(32px, 3.25vw, 50px);
	font-weight: 700;
	letter-spacing: 0.01em;
	line-height: 1.35;
	text-transform: none;
}

.dm-book-promo__title span {
	color: var(--dm-book-gold);
}

.dm-book-promo__lead {
	max-width: 680px;
	margin: 18px 0 0;
	color: #33445c;
	font-size: 18px;
	font-weight: 700;
	line-height: 1.75;
}

.dm-book-promo__meta {
	margin: 12px 0 0;
	color: var(--dm-book-muted);
	font-size: 14px;
	line-height: 1.7;
}

.dm-book-promo__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-top: 26px;
}

.dm-book-button {
	display: inline-flex;
	min-height: 46px;
	align-items: center;
	justify-content: center;
	padding: 0 22px;
	border: 2px solid var(--dm-book-blue);
	font-size: 15px;
	font-weight: 800;
	letter-spacing: 0.02em;
	line-height: 1.4;
	text-align: center;
	text-decoration: none;
	transition: transform 160ms ease, background-color 160ms ease, color 160ms ease;
}

.dm-book-button:hover,
.dm-book-button:focus {
	transform: translateY(-2px);
	text-decoration: none;
}

.dm-book-button:focus-visible {
	outline: 3px solid #f4c95d;
	outline-offset: 3px;
}

.dm-book-button--primary {
	background: var(--dm-book-blue);
	color: #ffffff;
}

.dm-book-button--primary:hover,
.dm-book-button--primary:focus {
	background: var(--dm-book-blue-dark);
	color: #ffffff;
}

.dm-book-button--secondary {
	background: #ffffff;
	color: var(--dm-book-blue);
}

.dm-book-button--secondary:hover,
.dm-book-button--secondary:focus {
	background: var(--dm-book-blue-soft);
	color: var(--dm-book-blue-dark);
}

.dm-book-button--gold {
	border-color: var(--dm-book-gold-light);
	background: var(--dm-book-gold-light);
	color: #182746;
}

.dm-book-button--gold:hover,
.dm-book-button--gold:focus {
	border-color: #f1dfa7;
	background: #f1dfa7;
	color: #0e1c35;
}

.dm-book-page {
	padding: 64px 24px 80px;
	background: #f5f7fa;
}

.dm-book-detail {
	max-width: 1140px;
	margin: 0 auto;
	overflow: hidden;
	background: #ffffff;
	box-shadow: 0 16px 48px rgba(27, 49, 82, 0.1);
}

.dm-book-detail__hero {
	display: grid;
	grid-template-columns: minmax(260px, 36%) 1fr;
	align-items: center;
	min-height: 560px;
	background: linear-gradient(120deg, #112950, var(--dm-book-blue));
	color: #ffffff;
}

.dm-book-detail__cover-area {
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 54px 24px 54px 56px;
}

.dm-book-detail__cover {
	display: block;
	width: min(288px, 92%);
	height: auto;
	margin: 0;
	box-shadow: 0 24px 58px rgba(0, 0, 0, 0.42);
}

.dm-book-detail__hero-copy {
	padding: 60px 68px 60px 42px;
}

.dm-book-detail__kicker,
.dm-book-detail__section-kicker {
	margin: 0 0 12px;
	font-size: 13px;
	font-weight: 800;
	letter-spacing: 0.14em;
}

.dm-book-detail__kicker {
	color: var(--dm-book-gold-light);
}

.dm-book-detail__hero h1 {
	margin: 0;
	color: #ffffff;
	font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
	font-size: clamp(38px, 4.2vw, 62px);
	font-weight: 700;
	line-height: 1.4;
	text-transform: none;
}

.dm-book-detail__lead {
	max-width: 650px;
	margin: 24px 0 0;
	color: #ffffff;
	font-size: 18px;
	font-weight: 700;
	line-height: 1.9;
}

.dm-book-detail__meta {
	margin: 14px 0 0;
	color: #d9e3f5;
	font-size: 14px;
}

.dm-book-detail__hero .dm-book-button {
	margin-top: 30px;
}

.dm-book-detail__section {
	padding: 76px 9%;
}

.dm-book-detail__section + .dm-book-detail__section {
	border-top: 1px solid var(--dm-book-line);
}

.dm-book-detail__section--tinted {
	background: var(--dm-book-blue-soft);
}

.dm-book-detail__section-kicker {
	color: var(--dm-book-blue);
}

.dm-book-detail__section h2,
.dm-book-detail__closing h2 {
	margin: 0 0 24px;
	font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
	font-size: clamp(28px, 3vw, 42px);
	font-weight: 700;
	line-height: 1.45;
	text-transform: none;
}

.dm-book-detail__section h2 {
	color: var(--dm-book-ink);
}

.dm-book-detail__intro {
	max-width: 760px;
	margin: 0;
	color: var(--dm-book-ink);
	font-size: 17px;
	line-height: 2;
}

.dm-book-detail__reader-list {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 14px 28px;
	margin: 30px 0 0;
	padding: 0;
	list-style: none;
}

.dm-book-detail__reader-list li {
	position: relative;
	padding: 18px 20px 18px 48px;
	border-left: 4px solid var(--dm-book-blue);
	background: #ffffff;
	color: #253550;
	font-size: 15px;
	font-weight: 700;
	line-height: 1.7;
}

.dm-book-detail__reader-list li::before {
	position: absolute;
	top: 18px;
	left: 20px;
	color: var(--dm-book-gold);
	content: "✓";
	font-size: 18px;
	font-weight: 900;
}

.dm-book-detail__principles {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 28px;
	margin-top: 34px;
}

.dm-book-detail__principle {
	padding: 8px 8px 0;
}

.dm-book-detail__number {
	margin: 0 0 12px;
	color: var(--dm-book-gold);
	font-family: Georgia, serif;
	font-size: 34px;
	line-height: 1;
}

.dm-book-detail__principle h3 {
	margin: 0 0 10px;
	color: var(--dm-book-blue-dark);
	font-size: 20px;
	font-weight: 700;
	line-height: 1.5;
	text-transform: none;
}

.dm-book-detail__principle p:last-child {
	margin: 0;
	color: var(--dm-book-muted);
	font-size: 15px;
	line-height: 1.8;
}

.dm-book-detail__author {
	display: grid;
	grid-template-columns: 1fr minmax(220px, 31%);
	gap: 64px;
	align-items: center;
}

.dm-book-detail__facts {
	margin: 0;
	padding: 28px;
	border-top: 4px solid var(--dm-book-gold);
	background: #ffffff;
}

.dm-book-detail__facts dt {
	color: var(--dm-book-blue);
	font-size: 13px;
	font-weight: 800;
	letter-spacing: 0.08em;
}

.dm-book-detail__facts dd {
	margin: 4px 0 18px;
	color: var(--dm-book-ink);
	font-size: 16px;
	font-weight: 700;
}

.dm-book-detail__facts dd:last-child {
	margin-bottom: 0;
}

.dm-book-detail__closing {
	padding: 68px 9%;
	background: var(--dm-book-blue-dark);
	color: #ffffff;
	text-align: center;
}

.dm-book-detail__closing h2 {
	margin-bottom: 0;
	color: #ffffff;
}

.dm-book-detail__closing p {
	margin: 16px auto 0;
	color: #d9e3f5;
	font-size: 16px;
	line-height: 1.8;
}

.dm-book-detail__closing .dm-book-button {
	margin-top: 26px;
}

.dm-book-detail__disclaimer {
	margin: 0;
	padding: 28px 9% 34px;
	background: #f1f3f6;
	color: #667085;
	font-size: 12px;
	line-height: 1.8;
}

@media (max-width: 820px) {
	.dm-book-promo__inner {
		grid-template-columns: 36% 1fr;
		min-height: 350px;
	}

	.dm-book-promo__cover-area {
		padding: 28px 20px;
	}

	.dm-book-promo__content {
		padding: 32px 28px;
	}

	.dm-book-promo__title {
		font-size: clamp(28px, 5vw, 40px);
	}

	.dm-book-promo__lead {
		font-size: 15px;
	}

	.dm-book-detail__hero {
		grid-template-columns: 36% 1fr;
		min-height: 500px;
	}

	.dm-book-detail__cover-area {
		padding: 42px 10px 42px 32px;
	}

	.dm-book-detail__hero-copy {
		padding: 44px 34px 44px 26px;
	}

	.dm-book-detail__reader-list,
	.dm-book-detail__principles,
	.dm-book-detail__author {
		grid-template-columns: 1fr;
	}

	.dm-book-detail__author {
		gap: 32px;
	}
}

@media (max-width: 560px) {
	.dm-book-promo {
		padding: 40px 16px;
	}

	.dm-book-promo__inner {
		grid-template-columns: 1fr;
		min-height: 0;
		border-top-width: 6px;
		box-shadow: 0 12px 32px rgba(26, 52, 94, 0.14);
	}

	.dm-book-promo__inner::after {
		display: none;
	}

	.dm-book-promo__cover-area {
		padding: 32px 18px;
	}

	.dm-book-promo__cover-area::before {
		inset: 14px;
	}

	.dm-book-promo__cover {
		width: min(190px, 58vw);
	}

	.dm-book-promo__content {
		align-items: center;
		padding: 28px 24px 32px;
		text-align: center;
	}

	.dm-book-promo__label {
		align-self: center;
		min-height: 24px;
		margin-bottom: 10px;
		padding: 1px 9px;
		font-size: 10px;
	}

	.dm-book-promo__title {
		font-size: 24px;
		line-height: 1.45;
	}

	.dm-book-promo__lead {
		margin-top: 10px;
		font-size: 13px;
		line-height: 1.7;
	}

	.dm-book-promo__meta {
		margin-top: 8px;
		font-size: 11px;
	}

	.dm-book-promo__actions {
		width: 100%;
		flex-direction: column;
		margin-top: 16px;
	}

	.dm-book-promo__actions .dm-book-button--primary {
		width: 100%;
		box-sizing: border-box;
	}

	.dm-book-promo__actions .dm-book-button--secondary {
		display: none;
	}

	.dm-book-button {
		min-height: 42px;
		padding: 0 14px;
		font-size: 13px;
	}

	.dm-book-page {
		padding: 0;
		background: #ffffff;
	}

	.dm-book-detail {
		box-shadow: none;
	}

	.dm-book-detail__hero {
		grid-template-columns: 1fr;
		min-height: 0;
		text-align: center;
	}

	.dm-book-detail__cover-area {
		padding: 42px 24px 0;
	}

	.dm-book-detail__cover {
		width: min(216px, 62vw);
	}

	.dm-book-detail__hero-copy {
		padding: 32px 24px 46px;
	}

	.dm-book-detail__hero h1 {
		font-size: 34px;
	}

	.dm-book-detail__lead {
		font-size: 16px;
		line-height: 1.8;
	}

	.dm-book-detail__section {
		padding: 56px 24px;
	}

	.dm-book-detail__section h2,
	.dm-book-detail__closing h2 {
		font-size: 28px;
	}

	.dm-book-detail__reader-list li {
		padding: 16px 14px 16px 42px;
	}

	.dm-book-detail__reader-list li::before {
		top: 16px;
		left: 16px;
	}

	.dm-book-detail__closing {
		padding: 54px 24px;
	}

	.dm-book-detail__disclaimer {
		padding: 24px;
	}
}