:root {
  --black: #090909;
  --charcoal: #151515;
  --ivory: #f2eee6;
  --muted: #aaa49b;
  --gold: #c5a36a;
  --gold-soft: #8d744e;
  --line: rgba(242, 238, 230, .17);
  --serif-en: "Cormorant Garamond", "Times New Roman", serif;
  --serif-jp: "Noto Serif JP", "Yu Mincho", "YuMincho", serif;
  --sans: "Noto Sans JP", "Yu Gothic", "YuGothic", sans-serif;
  --page: min(1200px, calc(100vw - 96px));
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--black);
  color: var(--ivory);
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 300;
  line-height: 1.9;
  letter-spacing: .045em;
}
body.is-locked { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, input { font: inherit; }
button { color: inherit; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 999;
  padding: 10px 16px;
  transform: translateY(-150%);
  background: var(--ivory);
  color: var(--black);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
  padding: 0 4vw;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: baseline; gap: 10px; text-decoration: none; }
.brand span { font-family: var(--serif-en); font-size: 31px; font-weight: 300; letter-spacing: .02em; }
.brand small, .footer-brand small { color: var(--gold); font-size: 9px; letter-spacing: .26em; }
.site-header nav { display: flex; gap: clamp(22px, 3vw, 48px); }
.site-header nav a { position: relative; padding: 8px 0; color: #d3cec6; font-size: 12px; letter-spacing: .12em; text-decoration: none; }
.site-header nav a::after { position: absolute; right: 0; bottom: 0; left: 0; height: 1px; transform: scaleX(0); background: var(--gold); content: ""; transition: transform .25s ease; }
.site-header nav a:hover::after, .site-header nav a:focus-visible::after { transform: scaleX(1); }

.hero {
  position: relative;
  display: grid;
  grid-template-columns: .88fr 1.12fr;
  min-height: 100svh;
  padding: 150px 4vw 68px;
  overflow: hidden;
  background: radial-gradient(circle at 79% 43%, #1a1917 0, #0d0d0d 32%, var(--black) 66%);
}
.hero-copy { z-index: 2; align-self: center; padding-left: 3vw; }
.eyebrow { margin: 0 0 28px; color: var(--gold); font-size: 10px; font-weight: 500; letter-spacing: .28em; }
.hero h1 {
  margin: 0;
  font-family: var(--serif-en);
  font-size: clamp(70px, 8.8vw, 152px);
  font-weight: 300;
  line-height: .77;
  letter-spacing: -.035em;
}
.hero-ja { margin: 48px 0 36px; font-family: var(--serif-jp); font-size: clamp(17px, 1.35vw, 22px); letter-spacing: .12em; }
.text-link { display: inline-flex; gap: 22px; align-items: center; padding-bottom: 4px; border-bottom: 1px solid var(--gold-soft); font-size: 12px; letter-spacing: .12em; text-decoration: none; }
.text-link span { color: var(--gold); }
.hero-visual { align-self: center; min-width: 0; }
.image-blend { position: relative; }
.image-blend::after { position: absolute; inset: -2px; background: radial-gradient(ellipse at center, transparent 48%, var(--black) 78%); content: ""; pointer-events: none; }
.hero-visual img { width: 100%; filter: drop-shadow(0 38px 55px rgba(0, 0, 0, .45)); }
.hero-index { position: absolute; right: 4vw; bottom: 30px; margin: 0; color: #716c64; font-family: var(--serif-en); font-size: 11px; letter-spacing: .24em; }

.section { width: var(--page); margin-inline: auto; padding-block: clamp(110px, 14vw, 190px); }
.section-heading { display: grid; grid-template-columns: .7fr 1.3fr; align-items: start; margin-bottom: clamp(70px, 9vw, 130px); }
.section-heading h2, .benefits-intro h2, .apply-lead h2 {
  margin: 0;
  font-family: var(--serif-jp);
  font-size: clamp(34px, 4.5vw, 66px);
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: .08em;
}

.concept { padding-top: clamp(140px, 18vw, 240px); }
.concept-image { width: min(940px, 89%); margin: 0 0 0 auto; overflow: hidden; background: var(--charcoal); }
.concept-image img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.concept-heading { margin-top: clamp(90px, 12vw, 160px); }
.concept-copy { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8vw; width: min(820px, 80%); margin: 80px 0 0 auto; }
.concept-copy p { margin: 0; color: #c6c1b8; font-family: var(--serif-jp); font-size: clamp(16px, 1.35vw, 19px); line-height: 2.25; }

.benefits { width: 100%; padding-top: 90px; }
.benefits-intro { width: var(--page); margin: 0 auto clamp(130px, 17vw, 240px); }
.benefits-intro h2 { margin-left: 28%; }
.benefits-intro > p:last-child { width: 45%; margin: 54px 0 0 52%; color: var(--muted); }
.benefit { position: relative; display: grid; grid-template-columns: minmax(30px, 1fr) minmax(0, 1200px) minmax(30px, 1fr); margin-bottom: clamp(150px, 20vw, 280px); }
.benefit-main { position: relative; grid-column: 2; }
.benefit-vertical {
  position: absolute;
  top: 110px;
  left: max(20px, calc((100vw - 1200px) / 2 - 62px));
  margin: 0;
  color: #777168;
  font-family: var(--serif-en);
  font-size: 18px;
  letter-spacing: .3em;
  writing-mode: vertical-rl;
}
.benefit-reverse .benefit-vertical { right: max(20px, calc((100vw - 1200px) / 2 - 62px)); left: auto; }
.benefit-number { position: absolute; top: -42px; left: 0; color: var(--gold); font-family: var(--serif-en); font-size: 14px; letter-spacing: .2em; }
.benefit-reverse .benefit-number { right: 0; left: auto; }
.benefit-image { margin: 0; overflow: hidden; background: #181715; }
.benefit-image img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.benefit-copy { width: 88%; margin: 56px auto 0; }
.benefit-copy h3 { margin: 0 0 42px; font-family: var(--serif-jp); font-size: clamp(28px, 3vw, 42px); font-weight: 400; letter-spacing: .09em; }
.benefit-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-bottom: 50px; border-top: 1px solid var(--line); }
.benefit-columns p { margin: 0; padding: 28px 32px 0 0; color: #afa9a0; font-size: 16px; line-height: 1.9; }
.benefit-columns p + p { padding-left: 32px; border-left: 1px solid var(--line); }
.benefit-columns strong { display: block; margin-bottom: 14px; color: var(--gold); font-family: var(--serif-en); font-size: 12px; font-weight: 400; letter-spacing: .22em; }
.outline-button, .gold-button, .text-button { min-height: 48px; cursor: pointer; }
.outline-button { display: block; min-width: 200px; margin: 0 auto; padding: 13px 28px; border: 1px solid var(--gold-soft); background: transparent; font-size: 12px; letter-spacing: .14em; transition: background .22s ease, color .22s ease; }
.outline-button:hover { background: var(--gold); color: var(--black); }

.editorial-split { display: grid; grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr); align-items: center; gap: 10vw; width: min(1060px, calc(100% - 48px)); margin: 0 auto clamp(160px, 22vw, 300px); }
.editorial-split-reverse { grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); }
.editorial-split-reverse .portrait { order: 2; }
.portrait { margin: 0; overflow: hidden; }
.portrait img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.editorial-copy { max-width: 560px; }
.editorial-copy .editorial-quote { margin: 0 0 44px; font-family: var(--serif-jp); font-size: clamp(28px, 3.8vw, 50px); line-height: 1.65; letter-spacing: .08em; }
.editorial-copy > p:last-child { max-width: 460px; color: var(--muted); }

.card-section { border-top: 1px solid var(--line); }
.card-showcase { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 7vw; overflow: clip; }
.card-showcase figure { margin: 0; }
.spec-wrap { padding-top: 12px; }
.demo-note { margin: 0 0 25px; color: var(--gold); font-size: 12px; }
.spec-list { margin: 0; border-top: 1px solid var(--line); }
.spec-list div { display: grid; grid-template-columns: 40% 60%; padding: 22px 0; border-bottom: 1px solid var(--line); }
.spec-list dt { color: var(--muted); font-size: 14px; }
.spec-list dd { margin: 0; font-family: var(--serif-jp); font-size: 17px; text-align: right; }
.spec-list dd span { display: block; color: #aaa49b; font-family: var(--sans); font-size: 12px; }

.apply-section { text-align: center; }
.apply-section > .eyebrow { margin-bottom: 46px; }
.apply-lead { max-width: 720px; margin: 0 auto; }
.apply-lead p { max-width: 600px; margin: 34px auto 40px; color: var(--muted); }
.apply-card { width: min(660px, 100%); margin: 15px auto 18px; }
.gold-button { padding: 15px 34px; border: 1px solid var(--gold); background: var(--gold); color: var(--black); font-size: 12px; font-weight: 500; letter-spacing: .14em; transition: background .2s, color .2s; }
.gold-button:hover { background: transparent; color: var(--gold); }
.steps { margin: 100px auto 0; }
.steps svg { width: 100%; max-width: 920px; overflow: visible; }
.steps-vertical { display: none; }
.steps line { stroke: var(--gold-soft); stroke-width: 1; }
.steps circle { fill: var(--black); stroke: var(--gold); stroke-width: 1; }
.steps text { fill: var(--ivory); font-family: var(--serif-en); font-size: 24px; text-anchor: middle; }
.steps .step-label { font-family: var(--serif-jp); font-size: 20px; letter-spacing: .1em; }

.faq { border-top: 1px solid var(--line); }
.faq .section-heading { grid-template-columns: .7fr 1.3fr; margin-bottom: 70px; }
.faq-list { width: 72%; margin-left: auto; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; padding: 30px 60px 30px 0; cursor: pointer; list-style: none; font-family: var(--serif-jp); font-size: 17px; letter-spacing: .08em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary span::before, .faq summary span::after { position: absolute; top: 50%; right: 13px; width: 18px; height: 1px; background: var(--gold); content: ""; transition: transform .2s; }
.faq summary span::after { transform: rotate(90deg); }
.faq details[open] summary span::after { transform: rotate(0); }
.faq details p { max-width: 720px; margin: 0; padding: 0 60px 30px 0; color: var(--muted); font-size: 16px; }

.contact { border-top: 1px solid var(--line); text-align: center; }
.contact-inner h2 { margin: 0 0 30px; font-family: var(--serif-jp); font-size: clamp(24px, 3vw, 38px); font-weight: 400; }
.contact-inner a { color: var(--ivory); font-family: var(--serif-en); font-size: clamp(42px, 6.5vw, 82px); font-weight: 300; letter-spacing: .04em; text-decoration-color: var(--gold-soft); text-decoration-thickness: 1px; text-underline-offset: 10px; }
.contact-inner p { color: #aaa49b; font-size: 12px; }

.site-footer { padding: 120px 0 42px; border-top: 1px solid var(--line); text-align: center; }
.footer-brand { display: flex; align-items: baseline; justify-content: center; gap: 14px; margin-bottom: 50px; }
.footer-brand span { font-family: var(--serif-en); font-size: clamp(48px, 7vw, 90px); font-weight: 300; }
.footer-image { max-width: 920px; height: clamp(260px, 38vw, 520px); margin: 0 auto 60px; overflow: hidden; }
.footer-image img { width: 100%; height: 100%; object-fit: cover; object-position: center 48%; }
.footer-meta { display: flex; justify-content: space-between; gap: 40px; width: var(--page); margin: 0 auto; padding-top: 30px; border-top: 1px solid var(--line); color: #aaa49b; font-size: 12px; text-align: left; }
.footer-meta p { margin: 0; }

.floating-apply { position: fixed; top: 22px; right: 24px; z-index: 30; display: flex; align-items: center; gap: 12px; padding: 13px 20px; transform: translateY(-100px); border: 1px solid var(--gold); background: rgba(9, 9, 9, .92); font-size: 11px; letter-spacing: .12em; text-decoration: none; opacity: 0; transition: transform .3s ease, opacity .3s ease; }
.floating-apply span { color: var(--gold); font-size: 8px; }
.floating-apply.is-visible { transform: translateY(0); opacity: 1; }
.back-top { position: fixed; right: 26px; bottom: 24px; z-index: 25; display: grid; place-items: center; width: 46px; height: 46px; transform: translateY(80px); border: 1px solid var(--line); background: rgba(9, 9, 9, .8); color: var(--gold); text-decoration: none; opacity: 0; transition: transform .3s, opacity .3s; }
.back-top.is-visible { transform: translateY(0); opacity: 1; }

dialog { padding: 0; border: 0; background: var(--charcoal); color: var(--ivory); }
dialog::backdrop { background: rgba(0, 0, 0, .86); backdrop-filter: blur(4px); }
.detail-dialog { width: min(1040px, calc(100vw - 48px)); max-height: min(820px, calc(100svh - 48px)); overflow: auto; }
.dialog-shell { display: grid; grid-template-columns: 1fr 1fr; min-height: 620px; }
.dialog-toolbar { position: sticky; top: 0; z-index: 4; grid-column: 1 / -1; display: flex; justify-content: flex-end; height: 0; padding: 18px 20px 0; pointer-events: none; }
.dialog-close { z-index: 3; display: flex; align-items: center; gap: 8px; min-width: 44px; min-height: 44px; padding: 6px 10px; border: 0; background: rgba(9, 9, 9, .88); cursor: pointer; font-size: 11px; letter-spacing: .12em; pointer-events: auto; }
.dialog-close span { color: var(--gold); font-size: 22px; font-weight: 300; }
.dialog-media { grid-column: 1; min-height: 100%; }
.dialog-media img { width: 100%; height: 100%; object-fit: cover; }
.dialog-copy { grid-column: 2; align-self: center; padding: 80px 64px 60px; }
.dialog-copy h2 { margin: 0 0 30px; font-family: var(--serif-jp); font-size: 38px; font-weight: 400; }
.dialog-lead { margin-bottom: 32px; color: #d3cec6; font-family: var(--serif-jp); font-size: 17px; line-height: 2; }
#dialog-body { color: var(--muted); font-size: 16px; }
#dialog-body h3 { margin: 26px 0 6px; color: var(--ivory); font-size: 16px; font-weight: 500; }
#dialog-body p { margin: 0; }
.dialog-note { margin-top: 38px; padding-top: 22px; border-top: 1px solid var(--line); color: #aaa49b; font-size: 12px; }

.apply-dialog { width: min(700px, calc(100vw - 48px)); max-height: calc(100svh - 48px); overflow: auto; }
.apply-dialog-shell { position: relative; min-height: 650px; padding: 64px clamp(30px, 7vw, 72px) 54px; }
.apply-progress { display: flex; align-items: center; margin: 38px 0 50px; }
.apply-progress span { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 50%; color: #777168; font-family: var(--serif-en); font-size: 18px; }
.apply-progress span.is-current { border-color: var(--gold); color: var(--gold); }
.apply-progress i { flex: 1; height: 1px; background: var(--line); }
.apply-step h2 { margin: 0 0 25px; font-family: var(--serif-jp); font-size: clamp(28px, 4vw, 40px); font-weight: 400; }
.apply-step > p:not(.step-count) { color: var(--muted); }
.step-count { margin: 0 0 14px; color: var(--gold); font-size: 10px; letter-spacing: .2em; }
.sample-data { margin: 35px 0 0; border-top: 1px solid var(--line); }
.sample-data div { display: flex; justify-content: space-between; gap: 20px; padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
.sample-data dt { color: var(--muted); }
.sample-data dd { margin: 0; text-align: right; }
.apply-actions { display: flex; justify-content: flex-end; gap: 18px; margin-top: 40px; }
.text-button { padding: 10px 18px; border: 0; border-bottom: 1px solid var(--gold-soft); background: transparent; cursor: pointer; }
.confirm-box { margin-top: 34px; padding: 8px 24px; border: 1px solid var(--line); }
.confirm-box p { display: flex; justify-content: space-between; gap: 20px; margin: 0; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
.confirm-box p:last-child { border: 0; }
.confirm-box span { color: var(--muted); }
.completion-mark { display: grid; place-items: center; width: 80px; height: 80px; margin: 38px auto; border: 1px solid var(--gold); border-radius: 50%; color: var(--gold); font-family: var(--serif-en); font-size: 34px; }

.reveal-once { opacity: 1; transform: none; }
.js-ready .reveal-once { opacity: 0; transform: translateY(20px); transition: opacity .75s ease, transform .75s ease; }
.js-ready .reveal-once.is-revealed { opacity: 1; transform: none; }
.image-motion img { transform: scale(var(--image-scale, 1.04)) translateY(var(--image-shift, 0)); will-change: transform; }

@media (max-width: 900px) {
  :root { --page: calc(100vw - 48px); }
  .steps .steps-horizontal { display: none; }
  .steps .steps-vertical { display: block; width: min(360px, 100%); height: auto; margin: 0 auto; }
  .steps-vertical .step-label { font-size: 22px; text-anchor: start; }
  .site-header { height: 72px; padding: 0 24px; }
  .site-header nav a:nth-child(-n+2) { display: none; }
  .site-header nav { gap: 22px; }
  .brand span { font-size: 26px; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 130px 24px 74px; }
  .hero-copy { padding-left: 0; }
  .hero h1 { font-size: clamp(70px, 17vw, 122px); }
  .hero-ja { margin-top: 34px; }
  .hero-visual { margin: 20px -5vw -10px; }
  .hero-index { display: none; }
  .section-heading { grid-template-columns: 1fr; gap: 25px; }
  .concept-image { width: 100%; }
  .concept-copy { grid-template-columns: 1fr; gap: 28px; width: 88%; margin-top: 52px; }
  .benefits-intro h2 { margin-left: 0; }
  .benefits-intro > p:last-child { width: 70%; margin-left: auto; }
  .benefit { grid-template-columns: 24px minmax(0, 1fr) 24px; }
  .benefit-vertical { display: none; }
  .benefit-copy { width: 92%; }
  .benefit-columns p { padding-right: 18px; }
  .benefit-columns p + p { padding-left: 18px; }
  .editorial-split { gap: 7vw; }
  .card-showcase { grid-template-columns: 1fr; }
  .faq-list { width: 85%; }
  .dialog-shell { grid-template-columns: .85fr 1.15fr; }
  .dialog-copy { padding: 74px 38px 48px; }
}

@media (max-width: 620px) {
  :root { --page: calc(100vw - 40px); }
  body { font-size: 16px; line-height: 1.85; }
  .site-header nav { gap: 14px; }
  .site-header nav a { font-size: 10px; }
  .section { padding-block: 105px; }
  .hero { padding-inline: 20px; }
  .hero h1 { font-size: clamp(64px, 19vw, 96px); line-height: .82; }
  .hero-visual { margin: 30px -10vw 0; }
  .hero-ja { font-size: 16px; }
  .section-heading h2, .benefits-intro h2, .apply-lead h2 { font-size: 32px; }
  .concept { padding-top: 130px; }
  .concept-image img { aspect-ratio: 4 / 3; }
  .concept-copy { width: 100%; }
  .benefits-intro { margin-bottom: 120px; }
  .benefits-intro > p:last-child { width: 100%; margin: 34px 0 0; }
  .benefit { display: block; margin-bottom: 140px; padding: 0 20px; }
  .benefit-number { top: -34px; }
  .benefit-reverse .benefit-number { right: auto; left: 0; }
  .benefit-image { margin-inline: -20px; }
  .benefit-image img { aspect-ratio: 1 / .72; }
  .benefit-copy { width: 100%; margin-top: 40px; }
  .benefit-copy h3 { margin-bottom: 30px; font-size: 28px; }
  .benefit-columns { grid-template-columns: 1fr; }
  .benefit-columns p { padding: 18px 0; border-bottom: 1px solid var(--line); }
  .benefit-columns p + p { padding-left: 0; border-left: 0; }
  .outline-button { width: 100%; }
  .editorial-split, .editorial-split-reverse { grid-template-columns: 1fr; gap: 54px; width: calc(100% - 40px); margin-bottom: 150px; }
  .editorial-split-reverse .portrait { order: 0; }
  .portrait { width: 82%; }
  .editorial-split-reverse .portrait { margin-left: auto; }
  .editorial-copy .editorial-quote { font-size: 29px; }
  .card-showcase { gap: 40px; }
  .card-showcase figure { margin-inline: -14vw; }
  .spec-list div { grid-template-columns: 42% 58%; }
  .steps { margin-top: 70px; }
  .steps-horizontal { display: none; }
  .steps .steps-vertical { display: block; width: min(360px, 100%); height: auto; margin: 0 auto; }
  .steps-vertical .step-label { font-size: 22px; text-anchor: start; }
  .faq-list { width: 100%; }
  .faq summary { padding-block: 24px; font-size: 16px; }
  .contact-inner a { font-size: 40px; }
  .site-footer { padding-top: 90px; }
  .footer-image { height: 300px; }
  .footer-meta { flex-direction: column; gap: 16px; }
  .floating-apply { top: auto; right: 16px; bottom: 16px; }
  .back-top { right: auto; bottom: 17px; left: 16px; }
  .detail-dialog, .apply-dialog { width: calc(100vw - 20px); max-height: calc(100svh - 20px); }
  .dialog-shell { display: block; }
  .dialog-media { height: 280px; }
  .dialog-copy { padding: 52px 24px 38px; }
  .dialog-copy h2 { font-size: 30px; }
  .apply-dialog-shell { min-height: 620px; padding: 54px 24px 36px; }
  .apply-actions { flex-direction: column-reverse; }
  .apply-actions button { width: 100%; }
  .sample-data div { display: block; }
  .sample-data dd { margin-top: 4px; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js-ready .reveal-once { opacity: 1; transform: none; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .image-motion img { transform: none !important; }
}