:root {
  color-scheme: dark;
  --ink: #eae8df;
  --muted: #b2b5aa;
  --paper: #d8cbb1;
  --ground: #191c18;
  --ground-deep: #141713;
  --surface: #22261f;
  --line: #41473a;
  --accent: #aab997;
  --serif: Georgia, "Yu Mincho", "Hiragino Mincho ProN", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 400 16px/1.75 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 5px; }
a:hover { color: var(--paper); }
button { font: inherit; }
a, button { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--paper); outline-offset: 6px; }
::selection { background: var(--paper); color: var(--ground-deep); }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { font-weight: 400; }
h2 { font-family: var(--serif); font-size: clamp(32px, 3.7vw, 58px); line-height: 1.23; letter-spacing: -.025em; }
img { display: block; width: 100%; height: auto; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.shell { width: min(1344px, calc(100% - 112px)); margin-inline: auto; }
.eyebrow { font-size: 11px; font-weight: 600; letter-spacing: .16em; line-height: 1.6; color: var(--muted); }
.skip-link { position: fixed; top: 10px; left: 12px; z-index: 100; padding: 12px 20px; background: var(--paper); color: var(--ground); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; z-index: 20; top: 0; background: var(--ground); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 83px; display: flex; align-items: center; gap: 34px; }
.brand { display: inline-flex; align-items: center; flex-shrink: 0; gap: 11px; color: var(--ink); text-decoration: none; font-family: var(--serif); font-size: 22px; letter-spacing: -.04em; }
.brand img { width: 30px; height: 30px; }
#primary-nav { display: flex; justify-content: flex-end; flex: 1; gap: 25px; }
#primary-nav a, .language-nav a { padding: 14px 0; font-size: 10px; font-weight: 600; letter-spacing: .1em; text-decoration: none; }
#primary-nav a:hover, .language-nav a:hover { text-decoration: underline; }
.language-nav { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.language-nav span { color: #858c7d; font-size: 11px; }
.language-nav [aria-current] { color: var(--paper); text-decoration: underline; }
.nav-toggle { min-height: 44px; padding: 6px 10px; gap: 14px; display: inline-flex; align-items: center; border: 1px solid var(--line); background: none; color: var(--ink); font-size: 12px; cursor: pointer; }
.menu-icon { width: 14px; height: 8px; border-top: 1px solid; border-bottom: 1px solid; }
.hero { padding-top: 46px; }
.hero-topline, .hero-bottom { display: flex; align-items: center; justify-content: space-between; gap: 18px; font-size: 10px; letter-spacing: .14em; }
.hero-topline { color: var(--muted); }
.status-label { display: flex; align-items: center; gap: 9px; }
.status-label i, .status-title i { display: inline-block; flex-shrink: 0; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.hero-layout { display: grid; grid-template-columns: 1.45fr 1fr; gap: 9%; padding: 54px 0 62px; align-items: center; }
.hero-statement { font-family: var(--serif); font-size: clamp(31px, 3.75vw, 56px); letter-spacing: -.03em; line-height: 1.3; }
.hero-statement span { color: var(--paper); }
.hero-description { max-width: 440px; margin-top: 25px; color: var(--muted); line-height: 1.9; font-size: 15px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; min-height: 52px; min-width: 232px; gap: 30px; padding: 12px 20px; margin-top: 34px; border: 1px solid var(--paper); color: var(--paper); font-size: 12px; text-decoration: none; }
.button:hover { background: var(--paper); color: var(--ground-deep); }
.button span { font-size: 22px; line-height: 1; }
.arrow-icon { display: inline-block; width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.25; vertical-align: middle; flex-shrink: 0; }
.contact-details .arrow-icon { width: 13px; height: 13px; margin-left: 7px; }
.cycle-panel { border-left: 1px solid var(--line); padding-left: 36px; }
.cycle-panel h2 { font-family: var(--sans); font-size: 17px; line-height: 1.5; margin: 10px 0 20px; letter-spacing: -.015em; }
.cycle-list li { display: flex; gap: 20px; position: relative; padding-bottom: 15px; }
.cycle-list li:last-child { padding-bottom: 0; }
.step-index { color: var(--accent); font-size: 10px; line-height: 2.5; font-variant-numeric: tabular-nums; }
.cycle-list h3 { font-size: 13px; }
.cycle-list p { color: var(--muted); font-size: 11px; line-height: 1.6; }
.hero-bottom { padding-block: 19px; color: var(--muted); border-top: 1px solid var(--line); }
.hero-bottom a { min-height: 44px; display: inline-flex; gap: 20px; align-items: center; text-decoration: none; }
.hero-bottom a:hover { text-decoration: underline; }
.section { padding-block: 106px; scroll-margin-top: 0; }
.section-label { display: flex; align-items: center; gap: 17px; margin-bottom: 34px; }
.section-label > span { color: var(--accent); font-size: 10px; font-variant-numeric: tabular-nums; }
.section-label::after { content: ""; height: 1px; background: var(--line); width: 50px; }
.section-split { display: grid; grid-template-columns: 1.15fr 1fr; gap: 10%; align-items: start; }
.section-copy { max-width: 560px; }
.section-copy p + p { margin-top: 22px; }
.section-copy p { color: var(--muted); font-size: 15px; line-height: 1.95; }
.section-copy .lead, .lead { color: var(--ink); font-size: 18px; line-height: 1.9; }
.pillars { display: flex; flex-wrap: wrap; margin-top: 60px; border-top: 1px solid var(--line); padding-top: 24px; gap: 12px 28px; }
.pillars li { font-size: 12px; color: var(--paper); display: flex; align-items: center; gap: 12px; }
.pillars li::before { content: ""; width: 4px; height: 4px; background: var(--accent); }
.exploration { background: var(--ground-deep); border-block: 1px solid var(--line); }
.field-words { margin-top: 56px; display: flex; flex-wrap: wrap; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 20px; gap: 15px; }
.field-words span { font-family: var(--serif); color: var(--muted); font-size: clamp(18px, 2vw, 29px); letter-spacing: .03em; }
.facility-row { margin-top: 54px; padding-top: 25px; border-top: 1px solid var(--line); }
.facility-row ul { display: flex; flex-wrap: wrap; gap: 12px 30px; margin-top: 19px; }
.facility-row li { font-size: 13px; color: var(--paper); }
.media-section { background: var(--surface); border-block: 1px solid var(--line); }
.media-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 50px; }
.facility-card { padding: 30px; border: 1px solid #58614e; min-height: 220px; display: flex; flex-direction: column; }
.facility-card-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.card-number { color: var(--accent); font-size: 13px; font-family: var(--serif); }
.facility-card h3 { font-family: var(--serif); font-size: 36px; letter-spacing: -.02em; padding: 26px 0 12px; }
.facility-card > p { color: var(--muted); font-size: 12px; margin-top: auto; }
.media-figure { margin-top: 40px; }
.media-figure img { background: var(--ground-deep); border: 1px solid var(--line); }
.media-figure > a { display: block; }
.media-figure figcaption { font-size: 11px; color: var(--muted); margin-top: 12px; line-height: 1.8; }
.facility-card .media-figure { margin-top: 6px; margin-bottom: 18px; }
.hero-figure { margin-top: 28px; }
.hero-figure img { width: 100%; }
.development-status { display: grid; grid-template-columns: 1fr 1.1fr; gap: 50px; border-block: 1px solid var(--line); padding-block: 30px; margin-top: 56px; }
.status-title { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--paper); margin-top: 12px; }
.development-status dl { display: flex; gap: 45px; margin: 0; justify-content: space-between; }
.development-status dt { font-size: 11px; color: var(--muted); margin-bottom: 12px; }
.development-status dd { margin: 0; font-size: 20px; font-family: var(--serif); }
.contact-section { padding-block: 70px; border-top: 1px solid var(--line); background: var(--ground-deep); }
.contact-layout { display: grid; grid-template-columns: 1.15fr 1fr; gap: 10%; }
.contact-layout h2 { font-size: 34px; margin-top: 17px; }
.contact-layout p:not(.eyebrow) { font-size: 13px; color: var(--muted); margin-top: 12px; }
.contact-details p { padding: 8px 0; }
.contact-details p > span { display: block; color: var(--muted); font-size: 11px; margin-bottom: 9px; }
.contact-details a { display: inline-block; min-height: 44px; padding-top: 6px; color: var(--paper); text-decoration: none; font-size: 15px; }
.contact-details a:hover { text-decoration: underline; }
.site-footer { min-height: 130px; display: flex; align-items: center; gap: 35px; justify-content: space-between; color: var(--muted); }
.footer-brand { font-family: var(--serif); font-size: 24px; text-decoration: none; color: var(--ink); }
.site-footer p { font-size: 10px; }
.footer-note { margin-left: 20px; }
.site-footer > a:last-child { font-size: 11px; padding-block: 14px; }
.policy-content { max-width: 850px; padding-block: 66px 100px; }
.back-link { display: inline-block; font-size: 12px; padding-block: 14px; margin-bottom: 45px; }
.policy-content h1 { font-family: var(--serif); font-size: clamp(30px, 5vw, 60px); line-height: 1.25; margin-top: 18px; }
.policy-content > .lead { font-size: 18px; margin-top: 24px; }
.policy-sections { margin-top: 48px; }
.policy-sections section { padding-block: 32px; border-top: 1px solid var(--line); }
.policy-sections h2 { font-size: 26px; line-height: 1.5; }
.policy-sections p { margin-top: 18px; color: var(--muted); font-size: 15px; line-height: 2; }
.policy-page .site-footer { border-top: 1px solid var(--line); }
:lang(ja) .hero-statement { font-size: clamp(27px, 3.05vw, 46px); line-height: 1.65; }
:lang(ja) h2 { line-height: 1.6; font-size: clamp(28px, 3.1vw, 43px); letter-spacing: 0; }
:lang(ja) .cycle-panel h2 { font-size: 16px; line-height: 1.7; }
:lang(ja) .contact-layout h2 { font-size: 30px; }
:lang(ja) .section-copy .lead { font-size: 17px; }
/* Reserve the collapsed mobile header before deferred navigation initializes.
   With scripting disabled, all navigation links remain available. */
@media (max-width: 900px) and (scripting: enabled) {
  #primary-nav:not([data-ready]) { display: none; }
}
@media (min-width: 1680px) { .hero { padding-top: 60px; } .hero-layout { padding-block: 65px 80px; } }
@media (max-width: 1100px) {
  .header-inner { gap: 22px; }
  #primary-nav { gap: 16px; }
  .brand { font-size: 20px; }
  .hero-layout { gap: 7%; }
  .cycle-panel { padding-left: 25px; }
  .development-status { gap: 30px; }
  .development-status dl { gap: 20px; }
}
@media (max-width: 900px) {
  .shell { width: calc(100% - 64px); }
  .header-inner { min-height: 76px; flex-wrap: wrap; gap: 0 20px; padding-block: 12px; }
  .brand { margin-right: auto; }
  .language-nav { margin-left: 4px; }
  #primary-nav { flex-basis: 100%; order: 4; justify-content: flex-start; flex-wrap: wrap; gap: 0 24px; padding-top: 14px; padding-bottom: 2px; }
  #primary-nav a { font-size: 11px; }
  .hero-layout { grid-template-columns: 1.1fr 1fr; gap: 5%; }
  .hero-statement { font-size: 34px; }
  .cycle-panel { padding-left: 22px; }
  .hero-description { font-size: 14px; }
  .section { padding-block: 80px; }
  .section-split { gap: 7%; }
  .section-copy .lead { font-size: 16px; }
  .section-copy p { font-size: 14px; }
  .development-status { grid-template-columns: 1fr; gap: 28px; }
  .development-status dl { justify-content: flex-start; gap: 65px; }
  .site-footer { flex-wrap: wrap; gap: 8px 22px; padding-block: 30px; }
  .site-footer p { flex: 1; text-align: right; }
  .site-footer > a:last-child { flex-basis: 100%; text-align: right; }
  .footer-note { display: block; margin-left: 0; margin-top: 5px; }
}
@media (max-width: 620px) {
  html { scroll-padding-top: 85px; }
  .shell { width: calc(100% - 40px); }
  .header-inner { gap: 0 9px; }
  .brand { font-size: 19px; gap: 7px; }
  .brand img { width: 24px; height: 24px; }
  .nav-toggle { font-size: 10px; gap: 8px; padding: 4px 8px; }
  .language-nav { gap: 5px; }
  .language-nav a { font-size: 10px; }
  .hero { padding-top: 30px; }
  .hero-topline { font-size: 8px; letter-spacing: .09em; gap: 10px; }
  .hero-layout { grid-template-columns: 1fr; gap: 45px; padding-block: 34px 40px; }
  .hero-statement { font-size: clamp(28px, 8vw, 44px); }
  .hero-description { margin-top: 21px; max-width: 400px; }
  .button { margin-top: 27px; }
  .cycle-panel { border-left: 0; border-top: 1px solid var(--line); padding: 24px 0 0; }
  .cycle-panel h2 { margin-bottom: 23px; }
  .cycle-list { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 16px; }
  .cycle-list li { gap: 12px; padding: 0; }
  .cycle-list li:last-child { grid-column: 1 / -1; }
  .cycle-list h3 { font-size: 12px; }
  .cycle-list p { font-size: 10px; }
  .hero-bottom { font-size: 8px; gap: 10px; letter-spacing: .06em; }
  .hero-bottom a { gap: 8px; }
  .section { padding-block: 63px; }
  .section-label { margin-bottom: 26px; }
  .section-split { grid-template-columns: 1fr; gap: 28px; }
  h2 { font-size: 36px; }
  .section-copy p { font-size: 14px; }
  .section-copy .lead { font-size: 16px; }
  .pillars { gap: 13px 20px; margin-top: 32px; }
  .pillars li { font-size: 11px; }
  .field-words { margin-top: 34px; }
  .field-words span { font-size: 16px; }
  .facility-row { margin-top: 32px; }
  .facility-row ul { gap: 12px 22px; }
  .facility-row li { font-size: 12px; }
  .media-grid { grid-template-columns: 1fr; margin-top: 30px; gap: 18px; }
  .facility-card { min-height: 195px; padding: 24px; }
  .facility-card h3 { font-size: 32px; }
  .development-status { margin-top: 33px; padding-block: 24px; }
  .development-status dl { gap: 24px; flex-wrap: wrap; }
  .development-status dd { font-size: 18px; }
  .status-title { font-size: 13px; }
  .contact-section { padding-block: 48px; }
  .contact-layout { grid-template-columns: 1fr; gap: 30px; }
  .contact-layout h2 { font-size: 28px; }
  .site-footer { min-height: 120px; }
  .footer-brand { font-size: 20px; }
  .site-footer p { font-size: 9px; }
  .policy-content { padding-block: 38px 50px; }
  .policy-content h1 { font-size: 39px; }
  .policy-content > .lead { font-size: 16px; }
  .policy-sections h2 { font-size: 23px; }
  :lang(ja) .hero-statement { font-size: clamp(24px, 6.5vw, 35px); }
  :lang(ja) h2 { font-size: 29px; }
  :lang(ja) .policy-content h1 { font-size: 30px; }
  :lang(ja) .policy-sections h2 { font-size: 22px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }