:root {
  --sage: #E2E8E4;
  --beige: #F5F5F0;
  --charcoal: #1C1C1C;
  --ivory: #FDFCF8;
  --gold: #D4AF37;
  --red: #DC2626;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--charcoal); background: var(--beige); font-family: Inter, "Noto Sans SC", "Microsoft YaHei", sans-serif; line-height: 1.6; }
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: 50; padding: 10px 14px; color: var(--ivory); background: var(--charcoal); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; top: 0; z-index: 20; min-height: 74px; display: flex; align-items: stretch; justify-content: space-between; color: var(--ivory); background: var(--charcoal); border-bottom: 1px solid var(--gold); }
.brand { display: flex; align-items: center; padding: 0 32px; font-family: Georgia, "Noto Serif SC", serif; font-size: 18px; font-weight: 700; letter-spacing: -.04em; }
nav { display: flex; align-items: stretch; }
nav a { display: grid; place-items: center; padding: 0 24px; border-left: 1px solid var(--gold); font-family: "Courier New", monospace; font-size: 11px; font-weight: 800; letter-spacing: -.04em; text-transform: uppercase; }
nav a:hover, nav a:focus-visible { color: var(--charcoal); background: var(--sage); }
nav .nav-cta { color: var(--charcoal); background: var(--gold); }
.mobile-nav { display: none; }

.hero { min-height: 780px; display: grid; grid-template-columns: 5fr 7fr; color: var(--ivory); background: var(--charcoal); }
.hero-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(56px, 6vw, 94px) clamp(28px, 5vw, 74px); border-right: 1px solid var(--gold); }
h1 { font-family: Georgia, "Noto Serif SC", serif; font-size: clamp(55px, 6vw, 90px); line-height: .98; letter-spacing: -.075em; font-weight: 700; }
h1 em { color: var(--gold); }
.hero-note { margin-top: 26px; padding-top: 16px; border-top: 1px solid var(--gold); font-family: "Courier New", monospace; font-size: 11px; font-weight: 800; letter-spacing: -.02em; text-transform: uppercase; }
.location { margin-top: 10px; color: var(--sage); font-size: 12px; font-weight: 700; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 34px; min-width: 205px; padding: 15px 18px; border: 1px solid var(--gold); border-radius: 999px; font-family: "Courier New", monospace; font-size: 11px; font-weight: 900; text-transform: uppercase; transition: transform .18s ease, background .18s ease; }
.button svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.button:hover, .button:focus-visible { transform: translateY(-4px); }
.button-primary { color: var(--charcoal); background: var(--gold); }
.text-link { padding-bottom: 3px; border-bottom: 1px solid var(--ivory); font-size: 12px; font-weight: 800; }
.hero-media { position: relative; min-height: 780px; overflow: hidden; }

.business { padding: 88px clamp(28px, 5vw, 74px); background: var(--beige); }
.section-heading { display: grid; grid-template-columns: 120px 1fr auto; align-items: end; gap: 24px; padding-bottom: 25px; border-bottom: 1px solid var(--charcoal); }
.section-index, .en-label { font-family: "Courier New", monospace; font-size: 10px; font-weight: 900; letter-spacing: -.02em; text-transform: uppercase; }
h2 { font-family: Georgia, "Noto Serif SC", serif; font-size: clamp(42px, 5vw, 74px); line-height: .98; letter-spacing: -.065em; font-weight: 700; }
.scope-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 34px; }
.scope-grid article { min-height: 150px; padding: 22px; background: var(--ivory); border: 1px solid var(--sage); border-radius: 22px; box-shadow: 0 18px 0 var(--sage); }
.scope-grid span { display: block; margin-bottom: 30px; color: var(--red); font-family: "Courier New", monospace; font-size: 10px; font-weight: 900; }
.scope-grid strong { font-family: Georgia, "Noto Serif SC", serif; font-size: 18px; line-height: 1.35; }
.media-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 54px; }
.media-pair figure { position: relative; height: 420px; overflow: hidden; border: 1px solid var(--gold); border-radius: 28px; box-shadow: 0 24px 0 var(--sage); }

.split-section { min-height: 640px; display: grid; grid-template-columns: 7fr 5fr; padding: 20px; }
.split-section.reverse { grid-template-columns: 5fr 7fr; }
.split-media { position: relative; min-height: 600px; overflow: hidden; border: 1px solid var(--gold); border-radius: 28px; }
.split-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(48px, 6vw, 88px); }
.split-copy .en-label { margin: 15px 0; color: var(--red); }
.split-copy h2 em { color: var(--gold); }
.split-copy > p:not(.section-index):not(.en-label) { max-width: 560px; margin-top: 25px; font-size: 13px; }
.split-copy dl { margin-top: 30px; border-top: 1px solid currentColor; }
.split-copy dl div { display: grid; grid-template-columns: 120px 1fr; gap: 18px; padding: 14px 0; border-bottom: 1px solid currentColor; }
.split-copy dt { font-family: "Courier New", monospace; font-size: 10px; font-weight: 900; }
.split-copy dd { font-size: 12px; font-weight: 750; }
.pale { background: var(--sage); }
.dark { color: var(--ivory); background: var(--charcoal); }

.development { min-height: 600px; display: grid; grid-template-columns: 7fr 5fr; padding: 20px; color: var(--charcoal); background: var(--gold); }
.evidence-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(48px, 6vw, 90px); background: var(--ivory); border-radius: 28px 0 0 28px; }
.evidence-copy .en-label { margin: 15px 0; color: var(--red); }
.evidence-name { margin-top: 34px; font-family: Georgia, "Noto Serif SC", serif; font-size: clamp(24px, 3vw, 42px); line-height: 1.3; letter-spacing: -.045em; }
.evidence-name strong { color: var(--red); }
.boundary { margin-top: 30px; padding-top: 16px; border-top: 1px solid var(--charcoal); font-size: 11px; font-weight: 700; }
.evidence-media { position: relative; min-height: 560px; overflow: hidden; border-radius: 0 28px 28px 0; }

.about { min-height: 640px; display: grid; grid-template-columns: 5fr 7fr; padding: 20px; background: var(--beige); }
.about-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(48px, 6vw, 88px); background: var(--ivory); border: 1px solid var(--sage); border-radius: 28px 0 0 28px; }
.about-copy .en-label { margin: 15px 0; color: var(--red); }
.about-copy dl { margin-top: 34px; border-top: 1px solid var(--charcoal); }
.about-copy dl div { display: grid; grid-template-columns: 112px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--sage); }
.about-copy dt { font-family: "Courier New", monospace; font-size: 10px; font-weight: 900; }
.about-copy dd { font-size: 12px; font-weight: 750; }
.about-media { position: relative; min-height: 600px; overflow: hidden; border: 1px solid var(--gold); border-left: 0; border-radius: 0 28px 28px 0; }

.contact { min-height: 440px; display: grid; grid-template-columns: .8fr 1.2fr auto; gap: clamp(30px, 6vw, 82px); align-items: center; padding: 72px clamp(28px, 5vw, 74px); color: var(--ivory); background: var(--charcoal); border-top: 1px solid var(--gold); }
.contact-title .en-label { margin: 15px 0; color: var(--gold); }
.contact-title > p:last-child { margin-top: 22px; font-size: 12px; }
.contact-grid { border-top: 1px solid var(--gold); }
.contact-grid div { display: grid; grid-template-columns: 130px 1fr; padding: 15px 0; border-bottom: 1px solid var(--gold); }
.contact-grid span { font-family: "Courier New", monospace; font-size: 10px; font-weight: 900; }
.contact-grid strong { font-size: 12px; }
.button-light { color: var(--charcoal); background: var(--ivory); }

footer { display: grid; grid-template-columns: 1.1fr .4fr 2fr; gap: 30px; align-items: center; padding: 30px clamp(28px, 5vw, 74px); color: var(--charcoal); background: var(--gold); font-size: 10px; }
footer strong { font-family: Georgia, "Noto Serif SC", serif; font-size: 14px; }

@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(--charcoal); background: var(--gold); border: 1px solid var(--sage); font-family: "Courier New", monospace; font-size: 11px; font-weight: 800; 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(--ivory); background: var(--charcoal); border: 1px solid var(--gold); }
  .mobile-nav a { display: block; padding: 11px 0; border-bottom: 1px solid var(--gold); font-family: "Courier New", monospace; font-size: 11px; font-weight: 800; }
  .mobile-nav a:last-child { border-bottom: 0; }
  .hero, .split-section, .split-section.reverse, .development, .about { grid-template-columns: 1fr; }
  .hero-copy { border-right: 0; border-bottom: 1px solid var(--gold); }
  .hero-media { min-height: 520px; }
  .split-section .split-copy { order: 1; }
  .split-section .split-media { order: 2; }
  .split-media, .evidence-media, .about-media { min-height: 500px; }
  .evidence-copy, .about-copy { border-radius: 28px 28px 0 0; }
  .evidence-media, .about-media { border: 1px solid var(--gold); border-top: 0; border-radius: 0 0 28px 28px; }
  .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: 56px 20px; }
  h1 { font-size: clamp(46px, 14vw, 60px); }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .hero-media { min-height: 390px; }
  .business { padding: 64px 20px; }
  .section-heading { grid-template-columns: 1fr; gap: 8px; }
  .scope-grid { grid-template-columns: 1fr; }
  .scope-grid article { min-height: 128px; }
  .media-pair { grid-template-columns: 1fr; }
  .media-pair figure { height: 280px; }
  .split-section, .development, .about { padding: 10px; }
  .split-copy, .evidence-copy, .about-copy { padding: 62px 20px; }
  .split-media, .evidence-media, .about-media { min-height: 340px; }
  .split-copy dl div, .about-copy dl div { grid-template-columns: 98px 1fr; }
  .contact { grid-template-columns: 1fr; padding: 64px 20px; }
  .contact .button { grid-column: auto; }
  .contact-grid div { grid-template-columns: 106px 1fr; }
  footer { grid-template-columns: 1fr; padding: 28px 20px; }
}

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