:root {
  --paper: #E3E2DE;
  --ink: #1B0E0D;
  --signal: #C72A09;
  --neon: #31EF07;
  --oxide: #61220F;
  --mist: #D9D9D9;
  --rule: 2px solid var(--ink);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "IBM Plex Mono", "Noto Sans Mono CJK SC", "Microsoft YaHei", monospace; line-height: 1.55; }
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
figure, h1, h2, p, dl, dd { margin: 0; }
em { font-style: normal; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 40; padding: 10px 14px; color: var(--paper); background: var(--ink); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; top: 0; z-index: 20; min-height: 72px; display: flex; align-items: stretch; justify-content: space-between; color: var(--paper); background: var(--ink); border-bottom: 2px solid var(--neon); }
.brand { display: flex; align-items: center; padding: 0 30px; font-size: 17px; font-weight: 900; letter-spacing: -.05em; text-transform: uppercase; }
nav { display: flex; align-items: stretch; }
nav a { display: grid; place-items: center; padding: 0 23px; border-left: 1px solid var(--mist); font-size: 11px; font-weight: 900; letter-spacing: -.04em; text-transform: uppercase; }
nav a:hover, nav a:focus-visible { color: var(--ink); background: var(--neon); }
nav .nav-cta { color: var(--paper); background: var(--signal); }
.mobile-nav { display: none; }

.hero { min-height: 770px; display: grid; grid-template-columns: 5fr 7fr; color: var(--paper); background: var(--ink); border-bottom: 8px solid var(--signal); }
.hero-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(54px, 6vw, 92px) clamp(26px, 5vw, 70px); border-right: 2px solid var(--neon); background: linear-gradient(150deg, var(--ink) 0 70%, var(--oxide) 70% 86%, var(--signal) 86%); }
.project-label { width: max-content; margin-bottom: 26px; padding: 7px 11px; color: var(--ink); background: var(--neon); font-size: 11px; font-weight: 900; letter-spacing: -.04em; text-transform: uppercase; }
h1 { font-size: clamp(48px, 5.3vw, 78px); line-height: .96; letter-spacing: -.085em; font-weight: 950; text-transform: uppercase; }
h1 em { color: var(--neon); }
.location { margin-top: 24px; color: var(--mist); font-size: 12px; font-weight: 900; letter-spacing: -.03em; }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 34px; min-width: 205px; padding: 15px 18px; border: var(--rule); border-radius: 0; font-size: 12px; font-weight: 900; text-transform: uppercase; transition: transform .16s linear, background .16s linear; }
.button:hover, .button:focus-visible { transform: translate(5px, -5px); }
.button-primary { color: var(--ink); background: var(--neon); }
.text-link { padding-bottom: 3px; border-bottom: 2px solid var(--paper); font-size: 12px; font-weight: 900; }
.hero-media { position: relative; min-height: 770px; overflow: hidden; background: var(--ink); }

.catalog { padding: 86px clamp(26px, 5vw, 72px); background: var(--paper); border-bottom: 8px solid var(--ink); }
.section-intro { display: grid; grid-template-columns: 130px 1fr auto; align-items: end; gap: 24px; padding-bottom: 24px; border-bottom: var(--rule); }
.section-index { font-size: 11px; font-weight: 900; letter-spacing: -.02em; }
h2 { font-size: clamp(40px, 5vw, 72px); line-height: .94; letter-spacing: -.08em; font-weight: 950; text-transform: uppercase; }
.en-label { font-size: 10px; font-weight: 900; letter-spacing: -.02em; text-transform: uppercase; }
.catalog-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 34px; border-top: var(--rule); border-left: var(--rule); }
.catalog-grid article { min-height: 148px; padding: 20px; background: var(--mist); border-right: var(--rule); border-bottom: var(--rule); }
.catalog-grid .catalog-lead { color: var(--paper); background: var(--signal); }
.catalog-grid span { display: block; margin-bottom: 28px; font-size: 10px; font-weight: 900; text-transform: uppercase; }
.catalog-grid strong { font-size: 15px; }
.catalog-media { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 42px; }
.catalog-media figure { position: relative; height: 400px; overflow: hidden; border: var(--rule); }

.feature { min-height: 620px; display: grid; grid-template-columns: 7fr 5fr; border-bottom: 8px solid var(--signal); }
.feature.reverse { grid-template-columns: 5fr 7fr; }
.feature-media { position: relative; min-height: 620px; overflow: hidden; }
.feature-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(48px, 6vw, 88px); border-left: 2px solid var(--neon); }
.reverse .feature-copy { border-left: 0; border-right: var(--rule); }
.feature-copy .en-label { margin: 15px 0; }
.feature-copy h2 em { color: var(--neon); }
.light .feature-copy h2 em { color: var(--signal); }
.feature-copy > p:not(.section-index):not(.en-label) { max-width: 590px; margin-top: 25px; font-size: 12px; }
.feature-copy dl { margin-top: 30px; border-top: 1px solid currentColor; }
.feature-copy dl div { display: grid; grid-template-columns: 120px 1fr; gap: 18px; padding: 14px 0; border-bottom: 1px solid currentColor; }
.feature-copy dt { font-size: 10px; font-weight: 900; }
.feature-copy dd { font-size: 12px; font-weight: 800; }
.dark { color: var(--paper); background: var(--ink); }
.light { color: var(--ink); background: var(--paper); }

.development { display: grid; grid-template-columns: 7fr 5fr; min-height: 590px; color: var(--paper); background: var(--signal); border-bottom: 8px solid var(--neon); }
.evidence-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(48px, 6vw, 90px); border-right: 2px solid var(--ink); }
.evidence-copy .en-label { margin: 15px 0; }
.evidence-copy strong { margin-top: 34px; padding: 8px 11px; width: max-content; color: var(--ink); background: var(--neon); font-size: 12px; }
.evidence-name { margin-top: 15px; font-size: clamp(24px, 3vw, 42px); line-height: 1.18; letter-spacing: -.06em; font-weight: 950; }
.boundary { margin-top: 28px; padding-top: 15px; border-top: 1px solid var(--paper); font-size: 11px; font-weight: 800; }
.evidence-media { position: relative; min-height: 590px; overflow: hidden; }

.about { display: grid; grid-template-columns: 5fr 7fr; min-height: 620px; background: var(--mist); border-bottom: 8px solid var(--ink); }
.about-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(48px, 6vw, 88px); }
.about-copy .en-label { margin: 15px 0; }
.about-copy dl { margin-top: 34px; border-top: var(--rule); }
.about-copy dl div { display: grid; grid-template-columns: 112px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--ink); }
.about-copy dt { font-size: 10px; font-weight: 900; }
.about-copy dd { font-size: 12px; font-weight: 800; }
.about-media { position: relative; min-height: 620px; overflow: hidden; border-left: var(--rule); }

.contact { min-height: 440px; display: grid; grid-template-columns: .8fr 1.2fr auto; gap: clamp(30px, 6vw, 82px); align-items: center; padding: 72px clamp(26px, 5vw, 72px); color: var(--paper); background: linear-gradient(120deg, var(--ink) 0 68%, var(--oxide) 68% 86%, var(--signal) 86%); border-bottom: 2px solid var(--neon); }
.contact-title .en-label { margin: 15px 0; }
.contact-title > p:last-child { margin-top: 22px; font-size: 12px; }
.contact-grid { border-top: 1px solid var(--paper); }
.contact-grid div { display: grid; grid-template-columns: 130px 1fr; padding: 15px 0; border-bottom: 1px solid var(--paper); }
.contact-grid span { font-size: 10px; font-weight: 900; }
.contact-grid strong { font-size: 12px; }
.button-light { color: var(--ink); background: var(--paper); border-color: var(--neon); }

footer { display: grid; grid-template-columns: 1.1fr .5fr 2fr; gap: 30px; align-items: center; padding: 29px clamp(26px, 5vw, 72px); color: var(--paper); background: var(--ink); font-size: 10px; }
footer strong { color: var(--neon); font-size: 13px; }

@media (max-width: 1000px) {
  .site-header nav { display: none; }
  .mobile-nav { position: relative; display: block; align-self: center; margin-right: 14px; }
  .mobile-nav summary { padding: 9px 12px; color: var(--paper); background: var(--signal); border: 1px solid var(--neon); font-size: 11px; font-weight: 900; list-style: none; cursor: pointer; }
  .mobile-nav summary::-webkit-details-marker { display: none; }
  .mobile-nav div { position: absolute; top: calc(100% + 12px); right: 0; min-width: 180px; padding: 8px 18px; color: var(--paper); background: var(--ink); border: 1px solid var(--neon); }
  .mobile-nav a { display: block; padding: 11px 0; border-bottom: 1px solid var(--mist); font-size: 11px; font-weight: 900; }
  .mobile-nav a:last-child { border-bottom: 0; }
  .hero, .feature, .feature.reverse, .development, .about { grid-template-columns: 1fr; }
  .hero-copy { border-right: 0; border-bottom: 2px solid var(--neon); }
  .hero-media { min-height: 520px; }
  .feature-copy, .reverse .feature-copy, .evidence-copy, .about-media { border: 0; border-bottom: var(--rule); }
  .feature .feature-copy { order: 1; }
  .feature .feature-media { order: 2; }
  .feature-media, .evidence-media, .about-media { min-height: 500px; }
  .contact { grid-template-columns: 1fr 1fr; }
  .contact .button { grid-column: 1 / -1; width: max-content; }
}

@media (max-width: 640px) {
  .site-header { min-height: 62px; }
  .brand { min-width: 0; padding: 0 12px; font-size: 11px; }
  .hero-copy { padding: 52px 20px; }
  h1 { font-size: clamp(43px, 13vw, 56px); }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .hero-media { min-height: 390px; }
  .catalog { padding: 62px 20px; }
  .section-intro { grid-template-columns: 1fr; gap: 8px; }
  .catalog-grid { grid-template-columns: 1fr; }
  .catalog-grid article { min-height: 122px; }
  .catalog-media { grid-template-columns: 1fr; }
  .catalog-media figure { height: 270px; }
  .feature-copy, .evidence-copy, .about-copy { padding: 62px 20px; }
  .feature-media, .evidence-media, .about-media { min-height: 340px; }
  .feature-copy dl div, .about-copy dl div { grid-template-columns: 98px 1fr; }
  .evidence-copy strong { width: auto; }
  .contact { grid-template-columns: 1fr; padding: 62px 20px; }
  .contact .button { grid-column: auto; }
  .contact-grid div { grid-template-columns: 106px 1fr; }
  footer { grid-template-columns: 1fr; padding: 27px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}