:root {
  --blue: #005A9C;
  --blue-light: #79B9DD;
  --ink: #111315;
  --paper: #F5F5F2;
  --white: #FFFFFF;
  --line: #CFD3D6;
  --muted: #666C70;
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Helvetica Neue", Arial, "Noto Sans JP", "Yu Gothic", sans-serif;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 1rem; top: 1rem; z-index: 100; background: #fff; padding: .8rem; }

.site-header {
  min-height: 84px;
  padding: 0 clamp(22px, 4vw, 64px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245,245,242,.96);
  border-bottom: 1px solid rgba(0,0,0,.10);
  backdrop-filter: blur(12px);
}
.wordmark { text-decoration: none; display: flex; flex-direction: column; line-height: 1.05; }
.wordmark-main { font-size: 1.08rem; font-weight: 800; letter-spacing: .14em; }
.wordmark-sub { margin-top: 7px; color: var(--muted); font-size: .64rem; letter-spacing: .055em; }
.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a { text-decoration: none; font-size: .69rem; font-weight: 750; letter-spacing: .10em; text-transform: uppercase; }
.main-nav a:hover { color: var(--blue); }
.language-link { border-left: 1px solid var(--line); padding-left: 24px; }
.menu-button { display: none; background: none; border: 0; font-weight: 800; letter-spacing: .08em; }

.hero {
  height: min(870px, calc(100vh - 84px));
  min-height: 640px;
  position: relative;
  overflow: hidden;
  background: #111;
  color: #fff;
}
.hero-image { width: 100%; height: 100%; object-fit: cover; object-position: 60% center; filter: contrast(1.04); }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg,rgba(0,0,0,.82) 0%,rgba(0,0,0,.52) 44%,rgba(0,0,0,.10) 78%), linear-gradient(0deg,rgba(0,0,0,.55),transparent 55%); }
.hero-content { position: absolute; left: max(22px,calc((100vw - var(--max))/2)); right: 22px; bottom: clamp(72px,10vh,125px); }
.hero-lab, .section-kicker { margin: 0; color: var(--blue-light); font-size: .68rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.hero h1 { max-width: 1000px; margin: 20px 0 28px; font-size: clamp(3.25rem,7.2vw,7.4rem); line-height: .94; letter-spacing: -.055em; }
.hero-mission { margin: 0 0 28px; font-size: clamp(1rem,2vw,1.42rem); }
.text-link { text-decoration: none; font-size: .72rem; font-weight: 800; letter-spacing: .10em; text-transform: uppercase; }
.text-link span { margin-left: 10px; }
.text-link.light { color: #fff; }
.hero-caption { position: absolute; right: 22px; bottom: 16px; margin: 0; color: rgba(255,255,255,.62); font-size: .58rem; letter-spacing: .08em; }

.section { padding: clamp(80px,10vw,145px) max(22px,calc((100vw - var(--max))/2)); }
.statement { display: grid; grid-template-columns: 1fr 3fr; gap: 60px; background: #fff; }
.statement .section-kicker, .research .section-kicker, .community .section-kicker, .contact .section-kicker, .story .section-kicker, .smart .section-kicker { color: var(--blue); }
.statement-copy { max-width: 940px; }
.statement-copy p { margin: 0 0 28px; font-size: clamp(1.5rem,2.65vw,2.48rem); line-height: 1.4; letter-spacing: -.025em; }
.statement-copy p:last-child { color: var(--muted); font-size: clamp(1.1rem,2vw,1.68rem); }

.section-heading { display: grid; grid-template-columns: 1.7fr 1fr; align-items: end; gap: 70px; margin-bottom: 68px; }
.section-heading h2, .community h2, .contact h2, .smart h2 { margin: 12px 0; font-size: clamp(2.65rem,5vw,5.15rem); line-height: 1.03; letter-spacing: -.05em; }
.section-heading > p { margin: 0; color: var(--muted); font-size: 1.02rem; }
.section-heading.inverse > p { color: #AFB4B7; }
.section-heading.compact { margin-bottom: 45px; }

.philosophy { background: var(--ink); color: #fff; }
.philosophy-grid { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid #484C4F; }
.process-card { min-width: 0; border-right: 1px solid #484C4F; }
.process-card:last-child { border-right: 0; }
.process-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; filter: grayscale(1); }
.process-card:nth-child(2) img, .process-card:nth-child(3) img { object-fit: contain; background: #EDEDEA; padding: 22px; }
.process-card > div { padding: 28px 24px 35px; }
.process-card span, .research-card span, .values-grid span, .gateway-grid span { color: var(--blue-light); font-size: .67rem; font-weight: 800; letter-spacing: .15em; }
.process-card h3 { margin: 42px 0 10px; font-size: 1.7rem; }
.process-card p { color: #ADB2B5; font-size: .86rem; }

.smart { background: #fff; }
.smart-intro { max-width: 980px; }
.smart-intro > p:last-child { max-width: 800px; color: var(--muted); font-size: 1.08rem; }
.smart-flow { list-style: none; margin: 68px 0; padding: 0; display: grid; grid-template-columns: repeat(8,1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.smart-flow li { position: relative; min-height: 155px; padding: 24px 18px; border-right: 1px solid var(--line); }
.smart-flow li:last-child { border-right: 0; }
.smart-flow li:not(:last-child)::after { content: "→"; position: absolute; right: -9px; top: 66px; z-index: 2; color: var(--blue); background: #fff; font-weight: 800; }
.smart-flow span { display: block; color: var(--blue); font-size: .62rem; font-weight: 800; }
.smart-flow strong { display: block; margin-top: 58px; font-size: .84rem; }
.smart-visuals { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.smart-visuals figure { margin: 0; background: #EEE; }
.smart-visuals img { width: 100%; aspect-ratio: 16/10; object-fit: cover; filter: grayscale(1); }
.smart-visuals figure:nth-child(2) img, .smart-visuals figure:nth-child(3) img { object-fit: contain; padding: 24px; background: #EDEDEA; }
.smart-visuals figcaption, .material-strip figcaption { padding: 12px 2px 0; color: var(--muted); font-size: .64rem; letter-spacing: .09em; text-transform: uppercase; }

.story { background: #F0F0ED; }
.story-list { margin-top: 52px; }
.story-list article { display: grid; grid-template-columns: 100px 1fr; gap: 32px; padding: 42px 0; border-top: 1px solid #BFC3C5; }
.story-list article:last-child { border-bottom: 1px solid #BFC3C5; }
.story-list span { color: var(--blue); font-size: .68rem; font-weight: 800; }
.story-list h2 { margin: 0 0 16px; font-size: clamp(1.75rem,3.1vw,3.28rem); line-height: 1.1; letter-spacing: -.035em; }
.story-list p { margin: 0; max-width: 800px; color: var(--muted); }

.research { background: #fff; }
.research-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.research-card { min-height: 620px; display: grid; grid-template-rows: 1.15fr 1fr; background: #FAFAF8; border: 1px solid #D5D8DA; }
.research-card.featured { grid-column: span 2; min-height: 500px; grid-template-columns: 1.35fr 1fr; grid-template-rows: none; }
.research-card.reverse { grid-template-columns: 1fr 1.35fr; }
.research-card.reverse img { order: 2; }
.research-card img { width: 100%; height: 100%; min-height: 290px; object-fit: cover; filter: grayscale(1); }
.research-card:nth-child(2) img { object-position: center; }
.research-card:nth-child(3) img { object-position: center; }
.research-card.reverse img { object-fit: contain; padding: 32px; background: #EDEDEA; }
.research-card > div { padding: 38px 40px 42px; display: flex; flex-direction: column; align-items: flex-start; }
.research-card h3 { margin: 20px 0; font-size: clamp(1.55rem,2.55vw,2.65rem); line-height: 1.12; letter-spacing: -.03em; }
.research-card p { margin: 0 0 30px; color: var(--muted); }
.research-card a { margin-top: auto; color: var(--blue); text-decoration: none; font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.material-strip { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-top: 70px; padding-top: 34px; border-top: 1px solid var(--line); }
.material-strip figure { margin: 0; }
.material-strip img { width: 100%; aspect-ratio: 16/9; object-fit: cover; filter: grayscale(1); background: #EDEDEA; }
.material-strip figure:nth-child(2) img, .material-strip figure:nth-child(3) img { object-fit: contain; padding: 20px; }

.community { background: #F2F3F1; }
.community-copy { max-width: 1040px; }
.community-copy > p:last-child { max-width: 820px; color: var(--muted); }
.values-grid { display: grid; grid-template-columns: repeat(5,1fr); margin: 70px 0; border-top: 1px solid #B8BDC0; border-bottom: 1px solid #B8BDC0; }
.values-grid article { min-height: 230px; padding: 28px 20px; border-right: 1px solid #B8BDC0; }
.values-grid article:last-child { border-right: 0; }
.values-grid span { color: var(--blue); }
.values-grid h3 { margin: 84px 0 0; font-size: 1.04rem; line-height: 1.35; }
.community blockquote { max-width: 1040px; margin: 0; padding: 34px 0 0 55px; border-left: 6px solid var(--blue); font-size: clamp(1.3rem,2.4vw,2.18rem); line-height: 1.45; }

.gateways { background: var(--ink); color: #fff; }
.gateway-grid { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid #484C4F; }
.gateway-grid a { min-height: 300px; padding: 34px 25px 30px 0; display: flex; flex-direction: column; text-decoration: none; border-right: 1px solid #484C4F; }
.gateway-grid a + a { padding-left: 25px; }
.gateway-grid a:last-child { border-right: 0; }
.gateway-grid h3 { margin: 50px 0 12px; font-size: 1.32rem; }
.gateway-grid p { color: #ADB2B5; font-size: .86rem; }
.gateway-grid b { margin-top: auto; color: var(--blue-light); font-size: .67rem; letter-spacing: .09em; text-transform: uppercase; }
.gateway-grid a:hover h3 { color: var(--blue-light); }

.contact { display: grid; grid-template-columns: 1.4fr 1fr; gap: 90px; align-items: end; background: #fff; }
.contact-copy p { margin: 0 0 24px; color: var(--muted); }
.privacy-note { font-size: .83rem; }
.button { display: inline-flex; min-height: 50px; align-items: center; padding: 0 24px; background: var(--blue); color: #fff; text-decoration: none; font-size: .7rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.button:hover { background: #004878; }

.site-footer { min-height: 150px; padding: 43px max(22px,calc((100vw - var(--max))/2)); display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; align-items: end; background: #08090A; color: #AEB2B5; font-size: .7rem; }
.site-footer strong { display: block; color: #fff; font-size: .95rem; letter-spacing: .13em; }
.site-footer span { display: block; margin-top: 6px; }

@media (max-width: 980px) {
  .main-nav { display: none; position: absolute; top: 84px; left: 0; right: 0; padding: 25px; flex-direction: column; align-items: flex-start; background: var(--paper); border-bottom: 1px solid var(--line); }
  .main-nav.open { display: flex; }
  .language-link { border-left: 0; padding-left: 0; }
  .menu-button { display: block; }
  .statement, .section-heading, .contact { grid-template-columns: 1fr; }
  .statement { gap: 22px; }
  .philosophy-grid, .gateway-grid { grid-template-columns: 1fr 1fr; }
  .process-card:nth-child(2), .gateway-grid a:nth-child(2) { border-right: 0; }
  .smart-flow { grid-template-columns: repeat(4,1fr); }
  .smart-flow li:nth-child(4) { border-right: 0; }
  .smart-flow li:nth-child(-n+4) { border-bottom: 1px solid var(--line); }
  .smart-flow li:nth-child(4)::after { display: none; }
  .research-grid { grid-template-columns: 1fr; }
  .research-card, .research-card.featured, .research-card.reverse { grid-column: auto; grid-template-columns: 1fr; grid-template-rows: auto; }
  .research-card.reverse img { order: 0; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .values-grid article { border-bottom: 1px solid #B8BDC0; }
  .material-strip { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .site-header { min-height: 72px; }
  .main-nav { top: 72px; }
  .wordmark-sub { font-size: .54rem; }
  .hero { height: calc(100vh - 72px); min-height: 610px; }
  .hero-image { object-position: 68% center; }
  .hero h1 { font-size: 3.05rem; }
  .hero-caption { display: none; }
  .section { padding: 78px 22px; }
  .philosophy-grid, .gateway-grid, .smart-visuals, .values-grid { grid-template-columns: 1fr; }
  .process-card, .gateway-grid a, .values-grid article { border-right: 0 !important; border-bottom: 1px solid #484C4F; padding-left: 0 !important; }
  .values-grid article { border-color: #B8BDC0 !important; }
  .smart-flow { grid-template-columns: 1fr 1fr; }
  .smart-flow li { min-height: 130px; }
  .smart-flow li:nth-child(even) { border-right: 0; }
  .smart-flow li:nth-child(-n+6) { border-bottom: 1px solid var(--line); }
  .smart-flow li:nth-child(even)::after { display: none; }
  .story-list article { grid-template-columns: 45px 1fr; gap: 18px; }
  .research-card { min-height: 550px; }
  .research-card > div { padding: 30px 24px; }
  .community blockquote { padding-left: 24px; }
}

/* Research page */
.main-nav .is-current { color: var(--blue); }
.research-hero { position: relative; min-height: 650px; display: flex; align-items: flex-end; overflow: hidden; background: #111; color: #fff; }
.research-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: grayscale(1); }
.research-hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg,rgba(0,0,0,.78) 0%,rgba(0,0,0,.35) 55%,rgba(0,0,0,.12) 100%); }
.research-hero-copy { position: relative; z-index: 2; width: min(var(--max),calc(100% - 44px)); margin: 0 auto; padding: 110px 0 80px; }
.research-hero-copy h1 { max-width: 1050px; margin: 16px 0 30px; font-size: clamp(3rem,6.4vw,6.5rem); line-height: .98; letter-spacing: -.055em; }
.research-hero-copy > p:last-child { max-width: 730px; margin: 0; color: #D5D7D8; font-size: 1.08rem; }
.page-index { min-height: 94px; padding: 0 max(22px,calc((100vw - var(--max))/2)); display: grid; grid-template-columns: repeat(4,1fr); align-items: stretch; background: #fff; border-bottom: 1px solid var(--line); }
.page-index a { display: flex; align-items: center; gap: 18px; padding: 20px 18px; color: var(--ink); text-decoration: none; border-right: 1px solid var(--line); font-size: .77rem; font-weight: 700; }
.page-index a:first-child { border-left: 1px solid var(--line); }
.page-index a:hover { color: var(--blue); background: #F5F7F8; }
.page-index span { color: var(--blue); font-size: .61rem; letter-spacing: .12em; }
.research-overview { background: #fff; }
.research-map { position: relative; min-height: 600px; margin-top: 30px; background: #F1F2F0; border: 1px solid var(--line); }
.research-map-core, .research-map-node { position: absolute; z-index: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; background: #fff; border: 1px solid #BFC5C8; }
.research-map-core { left: 50%; top: 50%; width: 250px; height: 250px; transform: translate(-50%,-50%); border-radius: 50%; border: 2px solid var(--blue); }
.research-map-core span { color: var(--blue); font-size: .62rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.research-map-core strong { margin-top: 15px; font-size: 2rem; line-height: 1.05; }
.research-map-node { width: 265px; min-height: 115px; padding: 20px; }
.research-map-node strong { font-size: 1.08rem; }
.research-map-node span { margin-top: 8px; color: var(--muted); font-size: .72rem; }
.node-top { left: 50%; top: 35px; transform: translateX(-50%); }
.node-bottom { left: 50%; bottom: 35px; transform: translateX(-50%); }
.node-left { left: 55px; top: 50%; transform: translateY(-50%); }
.node-right { right: 55px; top: 50%; transform: translateY(-50%); }
.research-map::before, .research-map::after { content:""; position:absolute; z-index: 0; background:#9FB7C8; }
.research-map::before { left:50%; top:150px; bottom:150px; width:1px; }
.research-map::after { top:50%; left:320px; right:320px; height:1px; }
.research-area { padding: 120px max(22px,calc((100vw - var(--max))/2)); background: #fff; }
.research-area.alt { background: #F0F1EF; }
.research-area-head { display: grid; grid-template-columns: 1.55fr 1fr; gap: 80px; align-items: end; margin-bottom: 60px; }
.research-area-head h2 { margin: 12px 0 0; font-size: clamp(2.8rem,5.1vw,5.45rem); line-height: 1; letter-spacing: -.052em; }
.research-area-head > p { color: var(--muted); font-size: 1rem; }
.research-area-visual { position: relative; margin: 0 0 60px; background: #111; }
.research-area-visual img { width: 100%; aspect-ratio: 16/7; object-fit: cover; filter: grayscale(1); }
.research-area-visual p { position: absolute; right: 20px; bottom: 15px; margin: 0; color: rgba(255,255,255,.72); font-size: .61rem; letter-spacing: .08em; text-transform: uppercase; }
.spray-visual img { object-position: center 55%; }
.research-split-visual { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-bottom: 60px; }
.research-split-visual figure { margin: 0; background: #E6E7E5; }
.research-split-visual img { width: 100%; aspect-ratio: 16/10; object-fit: cover; filter: grayscale(1); }
.design-visuals img { object-fit: contain; padding: 32px; }
.research-split-visual figcaption { padding: 12px 2px 0; color: var(--muted); font-size: .62rem; letter-spacing: .08em; text-transform: uppercase; }
.research-area-content { display: grid; grid-template-columns: 1.4fr 1fr; gap: 80px; padding-top: 55px; border-top: 1px solid #BEC3C6; }
.research-lead h3 { margin: 0 0 24px; max-width: 780px; font-size: clamp(1.9rem,3.4vw,3.5rem); line-height: 1.12; letter-spacing: -.04em; }
.research-lead p { max-width: 780px; margin: 0; color: var(--muted); font-size: 1.02rem; }
.research-meta > div { padding: 0 0 22px; margin-bottom: 22px; border-bottom: 1px solid #CDD1D3; }
.research-meta span { color: var(--blue); font-size: .63rem; font-weight: 800; letter-spacing: .13em; }
.research-meta p { margin: 10px 0 0; color: var(--muted); font-size: .83rem; line-height: 1.7; }
.research-gallery { margin-top: 70px; padding-top: 35px; border-top: 1px solid #BEC3C6; }
.research-gallery.two { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.research-gallery figure { margin: 0; }
.research-gallery img { width: 100%; aspect-ratio: 16/9; object-fit: cover; filter: grayscale(1); background: #E7E8E6; }
.research-gallery figure:nth-child(2) img { object-fit: contain; padding: 25px; }
.research-gallery figcaption { padding-top: 12px; color: var(--muted); font-size: .62rem; letter-spacing: .08em; text-transform: uppercase; }
.research-methods { background: var(--ink); color: #fff; }
.method-grid { list-style: none; display: grid; grid-template-columns: repeat(3,1fr); margin: 0; padding: 0; border-top: 1px solid #484C4F; }
.method-grid li { min-height: 235px; padding: 30px 28px; border-right: 1px solid #484C4F; border-bottom: 1px solid #484C4F; }
.method-grid li:nth-child(3n) { border-right: 0; }
.method-grid span { color: var(--blue-light); font-size: .63rem; font-weight: 800; }
.method-grid strong { display: block; margin-top: 65px; font-size: 1.25rem; }
.method-grid p { margin: 12px 0 0; color: #ADB2B5; font-size: .84rem; }
.research-impact { background: #fff; }
.impact-grid { display: grid; grid-template-columns: repeat(5,1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.impact-grid article { min-height: 250px; padding: 28px 22px; border-right: 1px solid var(--line); }
.impact-grid article:last-child { border-right: 0; }
.impact-grid span { color: var(--blue); font-size: .63rem; font-weight: 800; }
.impact-grid h3 { margin: 80px 0 13px; font-size: 1.08rem; }
.impact-grid p { color: var(--muted); font-size: .79rem; }
.research-cta { background: #F1F2F0; }
.research-cta h2 { margin: 12px 0 30px; max-width: 950px; font-size: clamp(2.7rem,5.4vw,5.55rem); line-height: 1; letter-spacing: -.052em; }
.research-cta > p:not(.section-kicker) { max-width: 780px; color: var(--muted); }
.cta-links { display: flex; gap: 28px; align-items: center; margin-top: 40px; }
.text-link { color: var(--blue); text-decoration: none; font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }

@media (max-width: 980px) {
  .page-index { grid-template-columns: 1fr 1fr; }
  .page-index a:nth-child(2) { border-right: 0; }
  .research-area-head, .research-area-content { grid-template-columns: 1fr; gap: 30px; }
  .research-map { min-height: 760px; }
  .node-top { top: 35px; }
  .node-bottom { bottom: 35px; }
  .node-left { left: 25px; top: 50%; }
  .node-right { right: 25px; top: 50%; }
  .research-map::after { left: 290px; right: 290px; }
  .impact-grid { grid-template-columns: 1fr 1fr; }
  .impact-grid article { border-bottom: 1px solid var(--line); }
}

@media (max-width: 600px) {
  .research-hero { min-height: 580px; }
  .research-hero-copy { width: calc(100% - 44px); padding-bottom: 55px; }
  .research-hero-copy h1 { font-size: 3rem; }
  .page-index { grid-template-columns: 1fr; }
  .page-index a, .page-index a:first-child { border-left: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .research-area { padding: 80px 22px; }
  .research-area-visual img { aspect-ratio: 4/3; }
  .research-split-visual, .research-gallery.two, .method-grid, .impact-grid { grid-template-columns: 1fr; }
  .research-map { min-height: 980px; display: flex; flex-direction: column; gap: 18px; padding: 30px 20px; }
  .research-map-core, .research-map-node { position: static; width: 100%; min-height: 110px; transform: none; }
  .research-map-core { height: 180px; border-radius: 0; order: 3; }
  .node-top { order: 1; }
  .node-left { order: 2; }
  .node-right { order: 4; }
  .node-bottom { order: 5; }
  .research-map::before, .research-map::after { display: none; }
  .research-area-head h2 { font-size: 2.75rem; }
  .research-area-content { padding-top: 35px; }
  .method-grid li, .impact-grid article { border-right: 0; }
  .cta-links { flex-direction: column; align-items: flex-start; }
}


/* Education, Students, Companies */
.subpage-hero { position: relative; min-height: 610px; display: flex; align-items: flex-end; overflow: hidden; background: #151719; color: #fff; }
.subpage-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: grayscale(1); }
.subpage-hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg,rgba(0,0,0,.83) 0%,rgba(0,0,0,.42) 58%,rgba(0,0,0,.12) 100%); }
.subpage-hero-copy { position: relative; z-index: 2; width: min(var(--max),calc(100% - 44px)); margin: 0 auto; padding: 120px 0 78px; }
.subpage-hero-copy h1 { margin: 14px 0 28px; max-width: 1000px; font-size: clamp(3.2rem,6.2vw,6.4rem); line-height: .98; letter-spacing: -.055em; }
.subpage-hero-copy > p:last-child { max-width: 720px; margin: 0; color: #D4D7D8; font-size: 1.08rem; }
.page-index.three { grid-template-columns: repeat(3,1fr); }
.content-intro { background: #fff; }
.feature-grid { display: grid; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.feature-grid.four { grid-template-columns: repeat(4,1fr); }
.feature-grid article { min-height: 310px; padding: 30px 26px; border-right: 1px solid var(--line); }
.feature-grid article:last-child { border-right: 0; }
.feature-grid span, .capability-grid span { color: var(--blue); font-size: .63rem; font-weight: 800; }
.feature-grid h3 { margin: 105px 0 18px; font-size: 1.25rem; }
.feature-grid p { color: var(--muted); font-size: .84rem; }
.dark-section { background: var(--ink); color: #fff; }
.learning-flow { list-style: none; display: grid; grid-template-columns: repeat(3,1fr); margin: 0; padding: 0; border-top: 1px solid #484C4F; }
.learning-flow li { min-height: 245px; padding: 28px; border-right: 1px solid #484C4F; border-bottom: 1px solid #484C4F; }
.learning-flow li:nth-child(3n) { border-right: 0; }
.learning-flow span { color: var(--blue-light); font-size: .63rem; font-weight: 800; }
.learning-flow strong { display:block; margin-top: 72px; font-size: 1.3rem; }
.learning-flow p { color:#ADB2B5; font-size:.83rem; }
.visual-feature { display:grid; grid-template-columns: 1.35fr 1fr; padding:0; background:#F0F1EF; }
.visual-feature.reverse-layout { grid-template-columns: 1fr 1.35fr; }
.visual-feature.reverse-layout .visual-feature-image { order:2; }
.visual-feature-image { min-height: 590px; background:#E1E3E1; }
.visual-feature-image img { width:100%; height:100%; object-fit:cover; filter:grayscale(1); }
.visual-feature-copy { display:flex; flex-direction:column; justify-content:center; padding:80px clamp(34px,7vw,110px); }
.visual-feature-copy h2 { margin:12px 0 28px; font-size:clamp(2.7rem,4.6vw,4.9rem); line-height:1; letter-spacing:-.052em; }
.visual-feature-copy > p:last-child { color:var(--muted); }
.program-grid, .information-grid, .collaboration-grid { display:grid; grid-template-columns:repeat(2,1fr); border-top:1px solid var(--line); }
.program-grid article, .information-grid article, .collaboration-grid article { min-height:210px; padding:30px; border-right:1px solid var(--line); border-bottom:1px solid var(--line); }
.program-grid article:nth-child(even), .information-grid article:nth-child(even), .collaboration-grid article:nth-child(even) { border-right:0; }
.program-grid h3, .information-grid h3, .collaboration-grid h3 { margin:45px 0 15px; font-size:1.25rem; }
.program-grid p, .information-grid p, .collaboration-grid p { color:var(--muted); font-size:.85rem; }
.page-cta { background:#F1F2F0; }
.page-cta h2 { margin:12px 0 28px; max-width:980px; font-size:clamp(2.8rem,5.2vw,5.4rem); line-height:1; letter-spacing:-.052em; }
.page-cta > p:not(.section-kicker) { max-width:760px; color:var(--muted); }
.button { display:inline-flex; align-items:center; justify-content:center; min-height:48px; padding:0 22px; background:var(--blue); color:#fff; text-decoration:none; font-size:.73rem; font-weight:800; letter-spacing:.07em; text-transform:uppercase; }
.experience-grid { display:grid; grid-template-columns:repeat(3,1fr); border-top:1px solid #484C4F; }
.experience-grid article { padding:24px; border-right:1px solid #484C4F; }
.experience-grid article:last-child { border-right:0; }
.experience-grid img { width:100%; aspect-ratio:16/10; object-fit:cover; filter:grayscale(1); background:#fff; }
.experience-grid h3 { margin:24px 0 12px; }
.experience-grid p { color:#ADB2B5; font-size:.84rem; }
.community-note { background:#F0F1EF; }
.community-note h2 { margin:12px 0 28px; max-width:950px; font-size:clamp(2.8rem,5.3vw,5.5rem); line-height:1; letter-spacing:-.052em; }
.community-note > p:last-child { max-width:840px; color:var(--muted); }
.capability-grid { display:grid; grid-template-columns:repeat(3,1fr); border-top:1px solid var(--line); }
.capability-grid article { min-height:275px; padding:28px; border-right:1px solid var(--line); border-bottom:1px solid var(--line); }
.capability-grid article:nth-child(3n) { border-right:0; }
.capability-grid h3 { margin:74px 0 15px; font-size:1.2rem; }
.capability-grid p { color:var(--muted); font-size:.83rem; }
.company-process { list-style:none; margin:0; padding:0; border-top:1px solid #484C4F; }
.company-process li { display:grid; grid-template-columns:80px 1fr; gap:30px; padding:30px 0; border-bottom:1px solid #484C4F; }
.company-process span { color:var(--blue-light); font-size:.64rem; font-weight:800; }
.company-process strong { font-size:1.3rem; }
.company-process p { margin:10px 0 0; color:#ADB2B5; }
.company-fields { background:#fff; }
.company-fields > h2 { margin:12px 0 50px; font-size:clamp(2.8rem,5vw,5.2rem); line-height:1; letter-spacing:-.052em; }

@media (max-width: 980px) {
  .page-index.three { grid-template-columns:1fr; }
  .feature-grid.four, .capability-grid { grid-template-columns:1fr 1fr; }
  .feature-grid article:nth-child(even), .capability-grid article:nth-child(even) { border-right:0; }
  .feature-grid article:nth-child(3), .capability-grid article:nth-child(3n) { border-right:1px solid var(--line); }
  .learning-flow { grid-template-columns:1fr 1fr; }
  .learning-flow li:nth-child(3n) { border-right:1px solid #484C4F; }
  .learning-flow li:nth-child(even) { border-right:0; }
  .visual-feature, .visual-feature.reverse-layout { grid-template-columns:1fr; }
  .visual-feature.reverse-layout .visual-feature-image { order:0; }
  .visual-feature-image { min-height:420px; }
  .experience-grid { grid-template-columns:1fr; }
  .experience-grid article { border-right:0; border-bottom:1px solid #484C4F; }
}
@media (max-width: 600px) {
  .subpage-hero { min-height:560px; }
  .subpage-hero-copy { padding-bottom:54px; }
  .subpage-hero-copy h1 { font-size:3rem; }
  .feature-grid.four, .capability-grid, .learning-flow, .program-grid, .information-grid, .collaboration-grid { grid-template-columns:1fr; }
  .feature-grid article, .capability-grid article, .learning-flow li, .program-grid article, .information-grid article, .collaboration-grid article { border-right:0 !important; }
  .visual-feature-copy { padding:65px 22px; }
  .visual-feature-image { min-height:310px; }
  .company-process li { grid-template-columns:45px 1fr; gap:15px; }
}

/* Contact email image */
.email-image-link {
  display: inline-block;
  max-width: 520px;
  margin: 1rem 0 1.25rem;
  padding: 0.8rem 1rem;
  border: 1px solid rgba(0, 83, 150, 0.28);
  border-radius: 10px;
  background: #fff;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.email-image-link:hover,
.email-image-link:focus-visible {
  border-color: #005396;
  transform: translateY(-1px);
}
.email-image {
  display: block;
  width: 100%;
  height: auto;
}
@media (max-width: 600px) {
  .email-image-link { padding: 0.6rem 0.7rem; }
}


/* Japanese localization refinements */
.section-kicker span[lang="en"], .hero-lab span[lang="en"] { opacity: .72; font-weight: 600; }
.process-card h3 small[lang="en"] { display:block; margin-top:6px; color:var(--blue-light); font-size:.62rem; font-weight:700; letter-spacing:.11em; text-transform:uppercase; }
.hero-mission span[lang="en"] { display:inline-block; margin-top:8px; font-size:.78em; opacity:.82; letter-spacing:.02em; }

/* CAD image update */
.material-strip img[src$="cad-design.png"] {
  object-fit: contain;
  padding: 20px;
  background: #EDEDEA;
}
.research-split-visual img[src$="cfrp-cad.png"] {
  object-fit: contain;
  padding: 24px;
  background: #E6E7E5;
}