:root {
  --ink: #171a1e;
  --paper: #f4f3ef;
  --white: #fff;
  --line: rgba(23, 26, 30, .18);
  --rust: #9b4d2e;
  --serif: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --sans: "Inter", "Noto Sans JP", "Yu Gothic", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.9; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 100; background: #fff; padding: .6rem 1rem; }
.skip-link:focus { top: 1rem; }

.site-header { position: absolute; inset: 0 0 auto; z-index: 20; height: 104px; display: flex; align-items: center; gap: 2rem; padding: 0 clamp(1.25rem, 4vw, 5rem); color: var(--ink); }
.site-header.solid { position: relative; background: var(--paper); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 1.25rem; flex: none; }
.brand img { display: block; width: clamp(10rem, 13vw, 13.8rem); height: auto; }
.brand small { font-size: .58rem; letter-spacing: .14em; }
.global-nav { margin-left: auto; display: flex; align-items: center; gap: clamp(.8rem, 1.6vw, 2rem); font-size: .72rem; font-weight: 500; white-space: nowrap; color: #fff; text-shadow: 0 1px 3px rgba(0,0,0,.9), 0 0 8px rgba(0,0,0,.75); }
.site-header.solid .global-nav { color: var(--ink); text-shadow: none; }
.global-nav a { position: relative; }
.global-nav a:not(.nav-contact)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -.45rem; height: 1px; background: currentColor; transition: right .25s ease; }
.global-nav a:hover::after, .global-nav a[aria-current="page"]::after { right: 0; }
.nav-contact { background: #fff; color: var(--ink); border: 1px solid var(--ink); padding: .9rem 1.25rem; text-shadow: none; }
.menu-button { display: none; }

.hero { min-height: 810px; height: 100svh; max-height: 1040px; position: relative; overflow: hidden; background: #dbe2e7; }
.hero-image { position: absolute; inset: 0; background-image: linear-gradient(90deg, rgba(246,244,238,.98) 0%, rgba(246,244,238,.82) 26%, rgba(246,244,238,.06) 57%), url('./hero-office-1536.webp'); background-size: cover; background-position: center center; transform: scale(1.01); }
.hero-copy { position: absolute; z-index: 2; left: clamp(1.5rem, 7vw, 8rem); top: 50%; transform: translateY(-44%); }
.eyebrow, .section-index { font-size: .69rem; letter-spacing: .18em; font-weight: 600; }
.hero h1 { margin: 1.6rem 0 1.5rem; font: 700 clamp(1.88rem, 3.28vw, 3.64rem)/1.5 var(--serif); letter-spacing: .025em; }
.hero-lead { padding-left: 2rem; border-left: 1px solid; font-family: var(--serif); font-size: clamp(.95rem, 1.2vw, 1.2rem); }
.hero-side { position: absolute; z-index: 2; right: clamp(1.5rem, 4vw, 4rem); bottom: 4rem; margin: 0; color: #fff; font-size: .66rem; letter-spacing: .19em; line-height: 1.8; text-align: right; }
.scroll-cue { position: absolute; z-index: 2; left: clamp(1.5rem, 4vw, 4rem); bottom: 3rem; display: flex; align-items: center; gap: .75rem; font-size: .62rem; letter-spacing: .16em; }
.scroll-cue span { width: 3rem; height: 1px; background: currentColor; }

.section { padding: clamp(3.6rem, 6.6vw, 6rem) clamp(1.5rem, 7vw, 8rem); }
.visual-grid { display: grid; grid-template-columns: minmax(120px, .38fr) minmax(280px, .84fr) minmax(360px, 1.18fr); gap: clamp(2rem, 4vw, 5rem); align-items: start; }
.visual-grid > .section-index { padding-top: .35rem; }
.statement { border-bottom: 1px solid var(--line); }
.statement-copy { display: block; }
.statement-copy .prose { margin-top: clamp(2rem, 3vw, 3rem); }
.section-image { margin: 0; overflow: hidden; background: #d9d8d3; }
.section-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.visual-grid > .section-image { width: 100%; aspect-ratio: 3 / 2; min-width: 0; }
.network-image { position: relative; }
.map-markers { position: absolute; inset: 0; pointer-events: none; }
.map-marker { position: absolute; left: var(--x); top: var(--y); width: clamp(10px, 1.2vw, 14px); aspect-ratio: 1; border-radius: 50%; background: var(--rust); border: 2px solid var(--paper); transform: translate(-50%, -50%); box-shadow: 0 0 0 1px rgba(23, 26, 30, .25); }
.statement h2, .section-heading h2, .network h2, .capability h2, .closing h2, .page-hero h1 { margin: 0; font: 700 clamp(1.4rem, 2.32vw, 2.64rem)/1.6 var(--serif); letter-spacing: .02em; }
.prose p { margin: 0 0 1.6rem; }
.strengths { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(4rem, 10vw, 10rem); }
.section-heading .section-index { margin-bottom: 2.2rem; }
.strength-grid { border-top: 1px solid var(--ink); }
.strength-grid article { display: grid; grid-template-columns: 3rem minmax(130px, .6fr) 1fr; gap: 1.5rem; padding: 2rem 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.strength-grid article > span { font-size: .68rem; }
.strength-grid h3 { font: 700 1.25rem var(--serif); margin: 0; }
.strength-grid p { margin: 0; font-size: .91rem; }

.capability { background: var(--ink); color: #fff; padding: clamp(3.6rem, 6vw, 5.4rem) clamp(1.5rem, 7vw, 8rem); }
.section-index.light { color: rgba(255,255,255,.62); }
.capability h2 { margin: 0 0 2rem; font-size: clamp(1.4rem, 2.12vw, 2.44rem); }
.capability-copy > p { max-width: 34rem; color: rgba(255,255,255,.7); }
.capability-mosaic { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; min-width: 0; }
.process-tile { position: relative; margin: 0; aspect-ratio: 3 / 2; overflow: hidden; background: #2a2e32; }
.process-tile:last-child { grid-column: 1 / -1; aspect-ratio: 3 / 1; }
.process-tile picture { display: block; width: 100%; height: 100%; }
.process-tile img { display: block; width: 100%; height: 100%; object-fit: cover; }
.process-tile:last-child img { object-position: center 55%; }
.process-tile figcaption { position: absolute; inset: auto 0 0; padding: 1.5rem .8rem .55rem; background: linear-gradient(transparent, rgba(0,0,0,.68)); color: #fff; font: 600 .82rem/1.4 var(--sans); white-space: nowrap; }
.process-tile figcaption span { margin-right: .45rem; font-size: .62rem; letter-spacing: .1em; }
.capability-list { list-style: none; padding: 0; margin: clamp(2.5rem, 4vw, 4rem) 0 0; border-top: 1px solid rgba(255,255,255,.5); }
.capability-list li { display: grid; grid-template-columns: 3rem 1fr auto; align-items: center; gap: 1rem; padding: 1.2rem 0; border-bottom: 1px solid rgba(255,255,255,.24); }
.capability-list li span, .capability-list small { font-size: .62rem; letter-spacing: .14em; color: rgba(255,255,255,.62); }
.capability-list strong { font: 400 1.25rem var(--serif); }
.capability-list .process-detail { display: block; margin-top: .2rem; font: 400 .72rem/1.5 var(--sans); letter-spacing: 0; color: rgba(255,255,255,.65); }

.network { position: relative; min-height: 390px; overflow: hidden; }
.network-copy { max-width: 38rem; position: relative; z-index: 2; }
.network-kicker { margin: 0 0 3rem; font-size: .66rem; letter-spacing: .18em; }
.network-copy > p:last-child { max-width: 32rem; margin-top: 2.5rem; }

.process { background: #fff; }
.process .section-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 4rem; }
.process-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); border-left: 1px solid var(--line); }
.process-list li { min-height: 210px; padding: 1.5rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; justify-content: space-between; position: relative; }
.process-list li > span { font-size: .65rem; letter-spacing: .15em; }
.process-icon { position: absolute; top: 1.15rem; right: 1.15rem; width: 36px; height: 36px; fill: none; stroke: currentColor; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; opacity: .68; }
.process-list strong { display: block; font: 500 1.15rem var(--serif); margin-bottom: .45rem; }
.process-list small { font-size: .72rem; color: rgba(23,26,30,.62); }
.closing { min-height: 372px; padding: clamp(3.6rem, 6vw, 5.4rem) clamp(1.5rem, 7vw, 8rem); background: linear-gradient(120deg, #22272c, #0e1114); color: #fff; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; }
.closing h2 { margin: 1.5rem 0 2rem; }
.closing > p:not(.eyebrow) { color: rgba(255,255,255,.72); }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 4rem; min-width: 260px; margin-top: 2rem; padding: 1rem 1.25rem; border: 1px solid rgba(255,255,255,.65); font-size: .78rem; transition: .25s; }
.button:hover { background: #fff; color: var(--ink); }

.site-footer { padding: 4rem clamp(1.5rem, 5vw, 5rem) 2rem; background: #0e1114; color: #fff; display: grid; grid-template-columns: 1fr auto; gap: 4rem; align-items: start; border-top: 1px solid rgba(255,255,255,.2); }
.footer-brand img { display: block; width: min(15rem, 70vw); height: auto; filter: invert(1); }
.footer-brand small { display: block; margin-top: .2rem; font-size: .55rem; letter-spacing: .15em; font-weight: 400; }
.site-footer nav { display: flex; gap: 2rem; font-size: .75rem; }
.site-footer > p { grid-column: 1 / -1; margin: 2rem 0 0; color: rgba(255,255,255,.5); font-size: .58rem; letter-spacing: .1em; }

.subpage { min-height: 70vh; }
.page-hero { min-height: 330px; padding: clamp(5rem, 8vw, 7rem) clamp(1.5rem, 7vw, 8rem) 3rem; border-bottom: 1px solid var(--line); }
.page-hero h1 { margin: 1.5rem 0 2rem; font-size: clamp(2rem, 4vw, 4rem); }
.company-hero { min-height: 280px; }
.company-hero h1 { margin-bottom: 0; }
.page-hero > p:last-child { max-width: 45rem; }
.company-layout, .contact-layout { padding: clamp(3rem, 5.4vw, 5.4rem) clamp(1.5rem, 7vw, 8rem); display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(4rem, 10vw, 12rem); }
.company-layout h2, .contact-layout h2 { font: 700 clamp(1.7rem, 2.7vw, 3rem)/1.6 var(--serif); }
.company-profile-logo { display: block; width: min(100%, 354px); height: auto; margin-top: 2rem; }
.company-table { margin: 0; border-top: 1px solid var(--ink); }
.company-table div { display: grid; grid-template-columns: 9rem 1fr; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.company-table dt { font-size: .73rem; font-weight: 600; }.company-table dd { margin: 0; }
.contact-layout aside dl { margin-top: 1.5rem; }.contact-layout aside dt { margin-top: 1.4rem; font-size: .62rem; letter-spacing: .14em; }.contact-layout aside dd { margin: .25rem 0; }
.contact-email { border-top: 1px solid var(--ink); padding-top: 1.5rem; }
.contact-email-address { margin: 1.5rem 0; font-size: clamp(1.35rem, 2.4vw, 2.3rem); font-weight: 600; letter-spacing: -.02em; overflow-wrap: anywhere; }
.contact-email > p:not(.section-index):not(.contact-email-address):not(.copy-email-status) { font-size: .88rem; }
.copy-email-button { border: 1px solid var(--ink); background: var(--ink); color: #fff; padding: .9rem 1.25rem; cursor: pointer; }
.copy-email-button:hover { background: transparent; color: var(--ink); }
.copy-email-button:focus-visible { outline: 2px solid var(--rust); outline-offset: 3px; }
.copy-email-status { min-height: 1.5em; margin: .5rem 0 0; font-size: .78rem; }

.reveal { opacity: 0; transform: translateY(25px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal { opacity: 1; transform: none; transition: none; } }

@media (max-width: 1120px) {
  .brand small { display: none; }
  .global-nav { gap: .85rem; font-size: .65rem; }
  .visual-grid { grid-template-columns: minmax(140px, .42fr) 1.58fr; }
  .visual-grid > :nth-child(2) { grid-column: 2; grid-row: 1; }
  .visual-grid > .section-image, .visual-grid > .capability-mosaic { grid-column: 2; grid-row: 2; }
  .strengths { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  body.menu-open { overflow: hidden; }
  .site-header { height: 78px; padding: 0 1.25rem; }
  .site-header.solid { position: relative; }
  .brand img { width: 10.5rem; }
  .menu-button { margin-left: auto; width: 44px; height: 44px; padding: 9px 7px; display: flex; flex-direction: column; justify-content: center; gap: 5px; background: transparent; border: 0; color: inherit; z-index: 22; }
  .menu-button span { display: block; width: 100%; height: 1px; background: currentColor; transition: .25s; }.menu-button b { position: absolute; clip: rect(0 0 0 0); }
  .menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }.menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }.menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .global-nav { position: fixed; inset: 0; background: var(--paper); display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: 6rem 2rem 2rem; gap: .9rem; transform: translateX(100%); transition: transform .35s ease; font: 500 1.15rem/1.5 var(--serif); color: var(--ink); text-shadow: none; }
  .global-nav.is-open { transform: translateX(0); }.nav-contact { margin-top: 1rem; font: 500 .8rem var(--sans); }
  .hero { min-height: 800px; height: 100svh; background: var(--paper); }
  .hero-image { inset: auto 0 0; height: 47%; background-image: url('./hero-office-mobile-768.webp'); background-position: center 48%; transform: none; }
  .hero-copy { left: 1.5rem; top: 7.25rem; right: 1.5rem; transform: none; }.hero h1 { font-size: clamp(1.8rem, 6.8vw, 2.6rem); }.hero-side { display: none; }
  .scroll-cue { color: var(--ink); text-shadow: 0 1px 4px rgba(255,255,255,.8); }.scroll-cue span { background: currentColor; }
  .statement, .capability, .network, .company-layout, .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
  .visual-grid > .section-index, .visual-grid > :nth-child(2), .visual-grid > .section-image, .visual-grid > .capability-mosaic { grid-column: 1; grid-row: auto; }
  .strength-grid article { grid-template-columns: 2.5rem 1fr; }.strength-grid article p { grid-column: 2; }
  .network { min-height: auto; }.network-image { width: 100%; }
  .process .section-heading { display: block; }.process-list { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 520px) {
  .section, .capability, .closing { padding: 3rem 1.25rem; }
  .hero-copy { left: 1.25rem; }.hero h1 { line-height: 1.45; }
  .statement h2, .section-heading h2, .network h2, .capability h2, .closing h2 { font-size: 1.32rem; }
  .capability-list li { grid-template-columns: 2.5rem 1fr; }.capability-list small { grid-column: 2; }
  .process-list { grid-template-columns: 1fr; }.process-list li { min-height: 150px; }
  .site-footer { grid-template-columns: 1fr; gap: 2rem; }.site-footer nav { flex-direction: column; gap: .5rem; }.site-footer > p { grid-column: auto; }
  .page-hero { min-height: 300px; padding: 5.5rem 1.25rem 2.5rem; }.page-hero h1 { font-size: 2rem; }.company-hero { min-height: 250px; }
  .company-layout, .contact-layout { padding: 2.4rem 1.25rem; }.company-table div { grid-template-columns: 1fr; gap: .5rem; }
}