@charset "UTF-8";


@import url("https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600&family=Shippori+Mincho:wght@400;500;600;700&display=swap");

:root {
	--ink: #111111;
	--text: #222426;
	--muted: #6c7074;
	--line: rgba(17, 17, 17, 0.14);
	--paper: #f8f8f6;
	--panel: #ffffff;
	--mist: #eaf3f1;
	--blue: #2858ff;
	--green: #c8ff64;
	--radius: 8px;
	--header-height: 76px;
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
	/* ヘッダーの高さ ＋ 10px の余白を自動計算 */
	scroll-padding-top: calc(var(--header-height) + 10px);
}

/* アクセシビリティ配慮 */
@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}
}


body {
	margin: 0;
	color: var(--text);
	background: var(--paper);
	font-family: "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", "Times New Roman", serif;
	line-height: 1.75;
	letter-spacing: 0;
}

a {
	color: inherit;
	text-decoration: none;
}

.site-header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 20;
	background: rgba(248, 248, 246, 0.78);
	backdrop-filter: blur(20px);
	border-bottom: 1px solid rgba(17, 17, 17, 0.08);
}

.header-inner {
	width: min(1280px, calc(100% - 44px));
	min-height: var(--header-height);
	margin: 0 auto;
	display: grid;
	grid-template-columns: 220px 1fr 220px;
	align-items: center;
	gap: 24px;
}

.brand {
	display: flex;
	align-items: center;
	gap: 12px;
	font-weight: 850;
	line-height: 1.05;
}

.brand-mark {
	width: 38px;
	height: 38px;
	display: grid;
	place-items: center;
	color: #fff;
	background: var(--ink);
	border-radius: 50%;
	font-size: 13px;
	font-weight: 900;
}

.brand small {
	display: block;
	color: var(--muted);
	font-size: 11px;
	font-weight: 750;
	margin-top: 2px;
}

.nav {
	justify-self: center;
	display: flex;
	gap: clamp(18px, 3.2vw, 56px);
	color: var(--ink);
	font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
	font-size: 18px;
	font-weight: 500;
}

.header-cta {
	justify-self: end;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 42px;
	padding: 0 22px;
	color: #fff;
	background: var(--ink);
	border-radius: 999px;
	font-weight: 800;
	box-shadow: inset 0 0 18px rgba(255, 255, 255, 0.16);
}

.hero {
	position: relative;
	min-height: 100vh;
	padding: 116px 0 44px;
	overflow: hidden;
	background:
		radial-gradient(ellipse at 70% 75%, rgba(234, 243, 241, 0.96), transparent 40%),
		linear-gradient(180deg, #fff 0%, var(--paper) 100%);
}

.hero::before {
	content: "";
	position: absolute;
	left: 34%;
	right: -8%;
	bottom: -18%;
	height: 58%;
	opacity: 0.62;
	background-image: radial-gradient(rgba(17, 17, 17, 0.28) 1px, transparent 1.5px);
	background-size: 18px 18px;
	transform: perspective(760px) rotateX(62deg) rotateZ(-7deg);
	transform-origin: center bottom;
	mask-image: linear-gradient(90deg, transparent, #000 18%, #000 76%, transparent);
}

.hero::after {
	content: "";
	position: absolute;
	inset: 0;
	pointer-events: none;
	background:
		linear-gradient(90deg, rgba(17, 17, 17, 0.045) 1px, transparent 1px) 0 0 / 120px 120px,
		linear-gradient(0deg, rgba(17, 17, 17, 0.035) 1px, transparent 1px) 0 0 / 120px 120px;
	mask-image: linear-gradient(to bottom, #000, transparent 74%);
}

.shell {
	width: min(1280px, calc(100% - 44px));
	margin: 0 auto;
	position: relative;
	z-index: 1;
}

.hero-title {
	margin: 0;
	color: var(--ink);
	font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
	font-size: clamp(72px, 17vw, 260px);
	font-weight: 400;
	line-height: 0.78;
	letter-spacing: 0;
}

.hero-title span {
	display: block;
	margin-left: clamp(0px, 12vw, 180px);
}

.hero-ja {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(520px, 560px);
	justify-content: end;
	gap: 48px;
	margin-top: clamp(24px, 5vh, 70px);
}

.hero-ja > div {
	grid-column: 2;
}

.hero-ja h1 {
	margin: 0;
	color: var(--ink);
	font-size: clamp(30px, 3.8vw, 54px);
	line-height: 1.14;
	font-weight: 500;
	letter-spacing: 0;
}

.hero-lead {
	margin: 18px 0 0;
	color: var(--muted);
	font-size: 16px;
}

.hero-tools {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 1px;
	margin-top: 56px;
	border: 1px solid var(--line);
	background: var(--line);
}

.tool {
	min-height: 128px;
	padding: 18px;
	background: rgba(255, 255, 255, 0.78);
}

.tool b {
	display: block;
	margin-bottom: 24px;
	color: var(--ink);
	font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
	font-size: 30px;
	font-weight: 400;
	line-height: 1;
}

.tool span {
	display: block;
	color: var(--muted);
	font-size: 13px;
	font-weight: 750;
}

.intro {
	padding: 92px 0 80px;
	background: #fff;
	border-top: 1px solid var(--line);
	border-bottom: 1px solid var(--line);
}

.intro-grid {
	display: grid;
	grid-template-columns: minmax(240px, 0.34fr) minmax(0, 1fr);
	gap: 68px;
	align-items: start;
}

.section-label {
	color: var(--muted);
	font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
	font-size: 18px;
}

.intro-copy {
	margin: 0;
	color: var(--ink);
	font-size: clamp(26px, 4vw, 56px);
	line-height: 1.34;
	font-weight: 500;
}

.intro-sub {
	max-width: 740px;
	margin: 28px 0 0;
	color: var(--muted);
	font-size: 16px;
}

.map {
	padding: 92px 0;
	background: var(--paper);
}

.map-head {
	display: grid;
	grid-template-columns: minmax(0, 0.58fr) minmax(300px, 0.32fr);
	gap: 50px;
	align-items: end;
	margin-bottom: 42px;
}

.map-head h2,
.ai-head h2,
.contact-head h2 {
	margin: 0;
	color: var(--ink);
	font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
	font-size: clamp(52px, 8vw, 126px);
	font-weight: 400;
	line-height: 0.86;
	letter-spacing: 0;
}

.map-head p,
.ai-head p,
.contact-head p {
	margin: 0;
	color: var(--muted);
	font-size: 15px;
}

.service-map {
	display: grid;
	grid-template-columns: minmax(0, 0.82fr) minmax(320px, 0.46fr);
	gap: 24px;
	align-items: stretch;
}

.diagram {
	position: relative;
	min-height: 560px;
	border: 1px solid rgba(17, 17, 17, 0.12);
	border-radius: var(--radius);
	background:
		linear-gradient(90deg, rgba(17, 17, 17, 0.07) 1px, transparent 1px) 0 0 / 64px 64px,
		linear-gradient(0deg, rgba(17, 17, 17, 0.055) 1px, transparent 1px) 0 0 / 64px 64px,
		rgba(255, 255, 255, 0.5);
	backdrop-filter: blur(24px) saturate(1.16);
	overflow: hidden;
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72), 0 24px 90px rgba(17, 17, 17, 0.08);
}

.diagram::after {
	content: "";
	position: absolute;
	inset: 0;
	pointer-events: none;
	background:
		radial-gradient(circle at 50% 48%, rgba(200, 255, 100, 0.2), transparent 28%),
		radial-gradient(circle at 74% 22%, rgba(40, 88, 255, 0.1), transparent 24%);
}

.diagram svg {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	z-index: 1;
}

.node {
	position: absolute;
	z-index: 2;
	display: grid;
	align-content: center;
	width: min(34%, 250px);
	min-height: 124px;
	padding: 18px;
	color: var(--ink);
	border: 1px solid rgba(17, 17, 17, 0.12);
	background: rgba(255, 255, 255, 0.58);
	backdrop-filter: blur(20px) saturate(1.18);
	border-radius: var(--radius);
	box-shadow: 0 18px 70px rgba(17, 17, 17, 0.1);
}

.node b {
	font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
	font-size: 34px;
	font-weight: 400;
	line-height: 1;
}

.node span {
	display: block;
	margin-top: 10px;
	color: rgba(17, 17, 17, 0.62);
	font-size: 12px;
	font-weight: 800;
}

.node.core {
	left: 50%;
	top: 50%;
	width: min(42%, 320px);
	min-height: 164px;
	transform: translate(-50%, -50%);
	color: #fff;
	background: rgba(40, 88, 255, 0.78);
	border-color: rgba(255, 255, 255, 0.26);
}

.node.core span {
	color: rgba(255, 255, 255, 0.72);
}

.node.pay {
	left: 42px;
	top: 52px;
}

.node.ops {
	right: 44px;
	top: 76px;
}

.node.ai {
	left: 74px;
	bottom: 58px;
	background: rgba(200, 255, 100, 0.56);
}

.node.ai span {
	color: rgba(17, 17, 17, 0.64);
}

.node.data {
	right: 56px;
	bottom: 62px;
}

.service-list {
	display: grid;
	grid-template-rows: repeat(4, 1fr);
	border-top: 1px solid var(--line);
}

.service-row {
	display: grid;
	align-content: center;
	min-height: 132px;
	padding: 20px 0;
	border-bottom: 1px solid var(--line);
}

.service-row small {
	color: var(--muted);
	font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
	font-size: 14px;
}

.service-row h3 {
	margin: 8px 0 6px;
	color: var(--ink);
	font-size: 24px;
	line-height: 1.2;
}

.service-row p {
	margin: 0;
	color: var(--muted);
	font-size: 13px;
}

section.ai {
	position: relative;
	padding: 98px 0;
	color: #fff;
	background-color: var(--ink);
	background-image:
		linear-gradient(180deg, rgba(5, 6, 8, 0.18), rgba(5, 6, 8, 0.28)),
		url("/img/ai-dark-bg.svg");
	background-position: center, center;
	background-size: cover, cover;
	background-repeat: no-repeat, no-repeat;
	overflow: hidden;
}

section.ai::before {
	content: "";
	position: absolute;
	inset: 0;
	pointer-events: none;
	background:
		linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px) 0 0 / 120px 120px,
		linear-gradient(0deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px) 0 0 / 120px 120px;
	mask-image: linear-gradient(to bottom, #000, transparent 82%);
}

section.ai .shell {
	position: relative;
	z-index: 1;
}

.ai-head {
	display: grid;
	grid-template-columns: minmax(0, 0.6fr) minmax(300px, 0.34fr);
	gap: 54px;
	align-items: end;
	margin-bottom: 42px;
}

.ai-head h2 {
	color: #fff;
}

.ai-head p {
	color: rgba(255, 255, 255, 0.66);
}

.ai-lanes {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 14px;
}

.lane {
	min-height: 318px;
	padding: 24px;
	border: 1px solid rgba(255, 255, 255, 0.18);
	border-radius: var(--radius);
	background: rgba(255, 255, 255, 0.1);
	backdrop-filter: blur(24px) saturate(1.18);
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16), 0 20px 70px rgba(0, 0, 0, 0.18);
}

.lane-num {
	color: var(--green);
	font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
	font-size: 56px;
	line-height: 1;
	display: inline-grid;
	place-items: center;
	min-width: 78px;
	min-height: 78px;
	padding: 0 10px;
	border: 1px solid rgba(255, 255, 255, 0.16);
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.08);
	backdrop-filter: blur(18px) saturate(1.16);
}

.lane h3 {
	margin: 48px 0 14px;
	color: #fff;
	font-size: 28px;
	line-height: 1.16;
}

.lane p {
	margin: 0;
	color: rgba(255, 255, 255, 0.66);
	font-size: 14px;
}

.contact {
	padding: 96px 0 110px;
	background: #fff;
}

.contact-head {
	display: grid;
	grid-template-columns: minmax(0, 0.58fr) minmax(320px, 0.38fr);
	gap: 56px;
	align-items: end;
	margin-bottom: 38px;
}

.contact-panel {
	display: grid;
	grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
	gap: 1px;
	border: 1px solid var(--line);
	background: var(--line);
}

.contact-aside,
.form {
	background: #fff;
}

.contact-aside {
	padding: 28px;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	min-height: 540px;
}

.contact-aside b {
	color: var(--ink);
	font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
	font-size: 44px;
	font-weight: 400;
	line-height: 0.95;
}

.contact-aside p {
	margin: 18px 0 0;
	color: var(--muted);
	font-size: 14px;
}

.mail-link {
	display: block;
	color: var(--ink);
	font-weight: 850;
	overflow-wrap: anywhere;
}

.form {
	padding: 28px;
	display: grid;
	gap: 18px;
}

.field {
	display: grid;
	gap: 8px;
}

.field label {
	color: var(--ink);
	font-size: 12px;
	font-weight: 850;
	text-transform: uppercase;
}

.field input,
.field select,
.field textarea {
	width: 100%;
	min-height: 52px;
	padding: 13px 0;
	border: 0;
	border-bottom: 1px solid var(--line);
	border-radius: 0;
	color: var(--ink);
	background: transparent;
	font: inherit;
	outline: none;
}

.field textarea {
	min-height: 134px;
	resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
	border-bottom-color: var(--ink);
}

.form-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 18px;
}

.submit {
	justify-self: start;
	min-height: 56px;
	padding: 0 30px;
	border: 0;
	border-radius: 999px;
	color: #fff;
	background: var(--ink);
	font: inherit;
	font-weight: 850;
	cursor: pointer;
}

.footer {
	padding: 28px 0;
	color: var(--muted);
	background: #fff;
	border-top: 1px solid var(--line);
	font-size: 12px;
	font-weight: 750;
}

.footer .shell {
	display: flex;
	justify-content: space-between;
	gap: 18px;
}




/* -------------------------
contact
---------------------------- */
/* エラー・成功時通知の共通設定 */
#contact-result {
	margin-top: 16px;
	padding: 12px 18px;
	border-radius: var(--radius);
	font-size: 14px;
	font-weight: 750;
}
#contact-result[data-type="success"] {
	background: #e6f9ed;
	color: #1e7e34;
	border: 1px solid #c3e6cb;
}
#contact-result[data-type="error"] {
	background: #fdf2f2;
	color: #dc3545;
	border: 1px solid #f5c6cb;
}

/* バリデーションエラー箇所のスタイル */
.form-field.is-error input,
.form-field.is-error select,
.form-field.is-error textarea {
	border-bottom-color: #dc3545 !important;
}
.error-message {
	display: block;
	color: #dc3545;
	font-size: 12px;
	font-weight: 750;
	margin-top: 4px;
	min-height: 18px;
}













@media (max-width: 980px) {
	.header-inner {
		grid-template-columns: 1fr auto;
	}

	.nav {
		display: none;
	}

	.hero-ja,
	.intro-grid,
	.map-head,
	.service-map,
	.ai-head,
	.contact-head,
	.contact-panel {
		grid-template-columns: 1fr;
	}

	.hero-ja > div {
		grid-column: auto;
	}

	.hero-tools,
	.ai-lanes {
		grid-template-columns: 1fr 1fr;
	}

	.contact-aside {
		min-height: auto;
		gap: 44px;
	}
}

@media (max-width: 680px) {
	.header-inner,
	.shell {
		width: min(100% - 26px, 1280px);
	}

	.header-inner {
		min-height: 66px;
	}

	.header-cta {
		min-height: 38px;
		padding: 0 14px;
		font-size: 12px;
	}

	.hero {
		padding-top: 92px;
	}

	.hero-title {
		font-size: clamp(68px, 23vw, 128px);
	}

	.hero-title span {
		margin-left: 0;
	}

	.hero-ja {
		gap: 18px;
	}

	.hero-tools,
	.ai-lanes,
	.form-grid {
		grid-template-columns: 1fr;
	}

	.diagram {
		min-height: 640px;
	}

	.node {
		width: calc(100% - 36px);
		min-height: 104px;
		left: 18px;
		right: 18px;
	}

	.node.core {
		width: calc(100% - 36px);
		left: 18px;
		top: 266px;
		transform: none;
	}

	.node.pay {
		top: 18px;
	}

	.node.ops {
		top: 142px;
	}

	.node.ai {
		bottom: 142px;
	}

	.node.data {
		bottom: 18px;
	}

	.diagram svg {
		display: none;
	}

	.footer .shell {
		flex-direction: column;
	}
}