:root {
  --black: #171615;
  --black-2: #211f1d;
  --black-3: #2d2a27;
  --red: #da4f3d;
  --red-deep: #a9372b;
  --cyan: #3fd3d2;
  --warm: #f8f4ec;
  --moon: #d8d9d6;
  --muted: #777570;
  --line-dark: rgba(255,255,255,.18);
  --line-light: rgba(23,22,21,.17);
  --sans: Inter, "SF Pro Display", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --serif: "Songti SC", "STSong", "Noto Serif SC", Georgia, serif;
  --page: min(1480px, calc(100% - 72px));
  --head: 78px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--head) + 18px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--black);
  color: var(--warm);
  font-family: var(--sans);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open { overflow: hidden; }

img { display: block; max-width: 100%; }
p, h1, h2, h3, figure, ol, ul, dl, dd { margin: 0; }
ol, ul { padding: 0; list-style: none; }
a { color: inherit; }
button, summary { font: inherit; }

.page-shell { width: var(--page); margin-inline: auto; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--head);
  background: rgba(23,22,21,.95);
  border-bottom: 1px solid var(--line-dark);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-shell {
  width: min(1560px, calc(100% - 48px));
  height: 100%;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand-mark img { width: 42px; height: 42px; object-fit: contain; }
.brand-mark strong { display: block; font-family: var(--serif); font-size: 22px; line-height: 1.05; letter-spacing: .09em; }
.brand-mark span { display: block; margin-top: 5px; color: var(--cyan); font-size: 8px; font-weight: 800; line-height: 1; letter-spacing: .23em; }

.primary-navigation { display: flex; align-self: stretch; }

.primary-navigation a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0 19px;
  color: #c6c3bd;
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
  transition: color .2s ease, background-color .2s ease;
}

.primary-navigation a::before {
  position: absolute;
  top: 0;
  right: 19px;
  left: 19px;
  height: 3px;
  background: var(--red);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}

.primary-navigation a:hover,
.primary-navigation a:focus-visible,
.primary-navigation a[aria-current="page"] { color: #fff; background: rgba(255,255,255,.045); }
.primary-navigation a:hover::before,
.primary-navigation a:focus-visible::before,
.primary-navigation a[aria-current="page"]::before { transform: scaleX(1); }

.primary-navigation a:focus-visible,
.menu-button:focus-visible,
summary:focus-visible { outline: 3px solid var(--cyan); outline-offset: -3px; }

.menu-button {
  display: none;
  width: 46px;
  height: 46px;
  padding: 12px;
  color: #fff;
  background: transparent;
  border: 1px solid var(--line-dark);
}

.menu-button i { display: block; height: 1px; margin: 7px 0; background: currentColor; transition: transform .2s ease; }

.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(255,255,255,.032) 1px, transparent 1px) 0 0 / 100% 94px,
    linear-gradient(90deg, rgba(255,255,255,.032) 1px, transparent 1px) 0 0 / 94px 100%,
    var(--black);
}

.hero::after {
  position: absolute;
  top: 10%;
  right: -12%;
  width: 34vw;
  height: 34vw;
  border: 1px solid rgba(63,211,210,.18);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.hero-shell {
  position: relative;
  z-index: 1;
  width: min(1560px, calc(100% - 48px));
  min-height: 740px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(420px, .7fr);
  gap: 88px;
  align-items: center;
  padding: 88px 0 82px;
}

.hero-copy { padding-left: clamp(0px, 3vw, 54px); }
.context-line { color: #8f8b85; font-size: 11px; letter-spacing: .1em; }
.kicker { color: var(--cyan); font-size: 10px; font-weight: 800; letter-spacing: .22em; text-transform: uppercase; }
.hero .kicker { margin-top: 48px; }
.kicker.dark { color: var(--red-deep); }

.hero h1 {
  max-width: 930px;
  margin-top: 24px;
  color: #fff;
  font-family: var(--serif);
  font-size: clamp(54px, 6.8vw, 112px);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -.045em;
}

.hero-slogan {
  margin-top: 34px;
  color: var(--red);
  font-family: var(--serif);
  font-size: clamp(21px, 2vw, 30px);
}

.hero-description { max-width: 780px; margin-top: 22px; color: #aaa6a0; font-size: 15px; }

.projection-zone {
  position: relative;
  min-height: 590px;
  padding: 26px;
  display: grid;
  grid-template-rows: 80px auto 1fr;
  background: var(--black-2);
  border: 1px solid var(--line-dark);
  box-shadow: 18px 18px 0 rgba(218,79,61,.12);
}

.projection-top { display: grid; grid-template-columns: auto auto 1fr; align-items: start; gap: 18px; }
.projection-top span { color: #a7a39e; font-size: 9px; font-weight: 800; letter-spacing: .2em; }
.projection-top b { color: var(--red); font-family: var(--serif); font-size: 36px; font-weight: 500; line-height: 1; }
.projection-top i { height: 1px; margin-top: 17px; background: var(--line-dark); }

.hero-visual {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #0e0d0c;
}

.hero-visual img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.55) contrast(1.12) brightness(.72); }

.projection-scale { align-self: end; display: grid; grid-template-columns: repeat(5, 1fr) auto; gap: 9px; align-items: end; padding-top: 28px; }
.projection-scale i { height: 20px; border-left: 1px solid #77736f; }
.projection-scale i:nth-child(3) { height: 42px; border-color: var(--cyan); }
.projection-scale span { color: #8f8b85; font-size: 8px; letter-spacing: .15em; }

.identity { padding: 122px 0 130px; background: var(--warm); color: var(--black); }
.identity-layout { display: grid; grid-template-columns: 84px minmax(280px, .7fr) minmax(0, 1.5fr); gap: 48px; align-items: start; }

.chapter-label { display: flex; flex-direction: column; gap: 10px; color: var(--red-deep); }
.chapter-label span { font-family: var(--serif); font-size: 46px; line-height: 1; }
.chapter-label b { font-size: 8px; letter-spacing: .2em; writing-mode: vertical-rl; }
.chapter-label.light { color: var(--cyan); }

.identity-title h2,
.section-heading h2,
.screening-title h2,
.updates-intro h2,
.faq h2,
.records-title h2 {
  margin-top: 16px;
  font-family: var(--serif);
  font-size: clamp(38px, 4.5vw, 72px);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -.03em;
}

.identity-copy .intro { max-width: 900px; font-family: var(--serif); font-size: clamp(24px, 2.55vw, 38px); line-height: 1.55; }
.two-column-copy { display: grid; grid-template-columns: repeat(2, 1fr); gap: 36px; margin-top: 48px; padding-top: 30px; border-top: 1px solid var(--line-light); color: var(--muted); font-size: 14px; }

.catalogue { padding: 122px 0 130px; background: #24211f; }
.section-heading { display: grid; grid-template-columns: 82px minmax(0, 1.2fr) minmax(260px, .65fr); gap: 48px; align-items: end; margin-bottom: 66px; }
.section-heading > p { color: #aaa59f; font-size: 14px; }

.catalogue-map {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: minmax(230px, auto);
  gap: 12px;
}

.catalogue-item {
  grid-column: span 4;
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 270px;
  padding: 30px;
  background: #2d2a27;
  border: 1px solid var(--line-dark);
  transition: transform .2s ease, border-color .2s ease;
}

.catalogue-item:hover { transform: translateY(-3px); border-color: rgba(63,211,210,.55); }
.catalogue-item.wide { grid-column: span 8; }
.catalogue-item.tall { grid-column: span 5; min-height: 340px; }
.catalogue-item.wide-bottom { grid-column: span 7; min-height: 340px; }
.catalogue-item.accent-red { background: var(--red); color: #1b1412; }
.catalogue-item.accent-cyan { background: var(--cyan); color: #102324; }
.catalogue-item > span { color: var(--cyan); font-size: 9px; font-weight: 800; letter-spacing: .18em; }
.catalogue-item.accent-red > span, .catalogue-item.accent-cyan > span { color: rgba(0,0,0,.62); }
.catalogue-item h3 { margin-top: 42px; font-family: var(--serif); font-size: 32px; font-weight: 500; line-height: 1.25; }
.catalogue-item p { margin-top: 18px; color: #aaa59f; font-size: 14px; }
.catalogue-item.accent-red p, .catalogue-item.accent-cyan p { color: rgba(0,0,0,.68); }
.catalogue-item b { margin-top: auto; padding-top: 28px; color: #dad6d0; font-size: 10px; font-weight: 650; letter-spacing: .07em; }
.catalogue-item.accent-red b, .catalogue-item.accent-cyan b { color: rgba(0,0,0,.72); }

.screening { padding: 126px 0 134px; background: var(--warm); color: var(--black); }
.screening-shell { display: grid; grid-template-columns: minmax(290px, .65fr) minmax(0, 1.35fr); gap: 90px; }
.screening-title { position: sticky; top: calc(var(--head) + 38px); align-self: start; }
.screening-title .kicker { margin-top: 40px; }
.screening-title > p:last-child { max-width: 520px; margin-top: 26px; color: var(--muted); }

.screening-ledger { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-light); border-left: 1px solid var(--line-light); }
.screening-ledger article { min-height: 290px; padding: 34px; border-right: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); }
.screening-ledger .screening-main { grid-column: 1 / -1; min-height: 440px; background: #e4e3df; }
.screening-ledger article > span { color: var(--red-deep); font-size: 9px; font-weight: 800; letter-spacing: .16em; }
.screening-ledger h3 { margin-top: 64px; font-family: var(--serif); font-size: 28px; font-weight: 500; line-height: 1.35; }
.screening-main h3 { max-width: 760px; margin-top: 100px; font-size: clamp(36px, 4vw, 60px); }
.screening-ledger p { margin-top: 18px; color: var(--muted); font-size: 14px; }
.screening-main p { max-width: 760px; }
.screening-main ul { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 36px; }
.screening-main li { padding: 7px 12px; border: 1px solid var(--line-light); color: #504c48; font-size: 11px; }

.updates { padding: 124px 0; background: var(--red-deep); }
.updates-shell { display: grid; grid-template-columns: minmax(320px, .8fr) minmax(0, 1.4fr); gap: 96px; }
.updates-intro > p:last-child { max-width: 500px; margin-top: 28px; color: rgba(255,255,255,.7); }
.logbook { border-top: 1px solid rgba(255,255,255,.35); }
.logbook article { display: grid; grid-template-columns: 125px 1fr 50px; gap: 28px; padding: 31px 0; border-bottom: 1px solid rgba(255,255,255,.35); }
.logbook time { color: var(--cyan); font-size: 10px; font-weight: 800; letter-spacing: .08em; }
.logbook h3 { font-family: var(--serif); font-size: 24px; font-weight: 500; }
.logbook p { margin-top: 8px; color: rgba(255,255,255,.7); font-size: 13px; }
.logbook article > span { align-self: start; padding: 3px 6px; border: 1px solid rgba(255,255,255,.4); font-size: 9px; text-align: center; }

.manual { padding: 126px 0 134px; background: #efefeb; color: var(--black); }
.manual-heading > p { color: var(--muted); }
.manual-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-light); border: 1px solid var(--line-light); }
.manual-flow article { min-height: 350px; padding: 30px; background: #f8f7f2; }
.manual-flow article:nth-child(2), .manual-flow article:nth-child(4) { background: #dfdfdc; }
.manual-flow span { color: var(--red-deep); font-size: 9px; font-weight: 800; letter-spacing: .16em; }
.manual-flow h3 { margin-top: 98px; font-family: var(--serif); font-size: 28px; font-weight: 500; }
.manual-flow p { margin-top: 18px; color: var(--muted); font-size: 14px; }

.faq { display: grid; grid-template-columns: minmax(270px, .6fr) minmax(0, 1.4fr); gap: 86px; margin-top: 120px; padding-top: 66px; border-top: 1px solid var(--line-light); }
.faq h2 { font-size: clamp(36px, 4vw, 60px); }
.faq-list { border-top: 1px solid var(--line-light); }
.faq-list details { border-bottom: 1px solid var(--line-light); }
.faq-list summary { position: relative; padding: 24px 50px 24px 0; cursor: pointer; list-style: none; font-family: var(--serif); font-size: 19px; font-weight: 600; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { position: absolute; top: 50%; right: 8px; color: var(--red-deep); content: "+"; font-family: var(--sans); font-size: 26px; transform: translateY(-50%); }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 780px; padding: 0 54px 25px 0; color: var(--muted); font-size: 14px; }

.records { padding: 126px 0 118px; background: #1e1c1a; }
.records-layout { display: grid; grid-template-columns: minmax(330px, .75fr) minmax(0, 1.25fr); gap: 88px; }
.records-title .kicker { margin-top: 40px; }
.records-title > p:last-child { max-width: 520px; margin-top: 26px; color: #9e9993; }
.credential-list { border-top: 1px solid var(--line-dark); }
.credential-list > div { display: grid; grid-template-columns: 150px 1fr; gap: 26px; padding: 22px 0; border-bottom: 1px solid var(--line-dark); }
.credential-list dt { color: var(--cyan); font-size: 11px; font-weight: 750; }
.credential-list dd { font-family: var(--serif); font-size: 20px; color: #efebe5; }
.principles { grid-column: 2; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); }
.principles article { padding: 25px; background: #262320; }
.principles h3 { font-family: var(--serif); font-size: 19px; font-weight: 500; }
.principles p { margin-top: 12px; color: #99948e; font-size: 12px; }

.site-footer { padding: 42px 0 50px; background: #11100f; border-top: 1px solid var(--line-dark); }
.footer-layout { display: grid; grid-template-columns: 1fr auto 1fr; gap: 36px; align-items: end; color: #8f8b85; font-size: 11px; }
.footer-brand { display: flex; align-items: center; gap: 12px; color: #fff; font-family: var(--serif); font-size: 20px; }
.footer-brand img { width: 40px; height: 40px; object-fit: contain; }
.footer-layout > div:last-child { text-align: right; }

@media (max-width: 1180px) {
  :root { --page: min(1120px, calc(100% - 48px)); }
  .primary-navigation a { padding-inline: 12px; }
  .primary-navigation a::before { right: 12px; left: 12px; }
  .hero-shell { grid-template-columns: 1.15fr minmax(360px, .85fr); gap: 52px; }
  .projection-zone { min-height: 530px; }
  .identity-layout { grid-template-columns: 64px .65fr 1.3fr; gap: 34px; }
  .screening-shell, .updates-shell, .records-layout { gap: 58px; }
  .manual-flow { grid-template-columns: repeat(2, 1fr); }
  .manual-flow article { min-height: 290px; }
  .manual-flow h3 { margin-top: 62px; }
}

@media (max-width: 900px) {
  :root { --head: 70px; --page: calc(100% - 36px); }
  .header-shell { width: calc(100% - 36px); }
  .brand-mark img { width: 37px; height: 37px; }
  .brand-mark strong { font-size: 20px; }
  .menu-button { display: block; }
  .menu-button[aria-expanded="true"] i:first-of-type { transform: translateY(4px) rotate(45deg); }
  .menu-button[aria-expanded="true"] i:last-of-type { transform: translateY(-4px) rotate(-45deg); }
  .primary-navigation { position: fixed; inset: var(--head) 0 auto; display: none; max-height: calc(100vh - var(--head)); overflow: auto; padding: 14px 18px 22px; background: #1c1a18; border-bottom: 1px solid var(--line-dark); }
  .primary-navigation.open { display: block; }
  .primary-navigation a { display: flex; min-height: 51px; padding-inline: 10px; border-bottom: 1px solid var(--line-dark); }
  .primary-navigation a::before { top: auto; right: auto; bottom: -1px; left: 10px; width: 58px; }
  .hero-shell { width: var(--page); grid-template-columns: 1fr; gap: 54px; padding-block: 68px; }
  .hero-copy { padding-left: 0; }
  .projection-zone { width: min(590px, 100%); min-height: 0; justify-self: end; }
  .identity, .catalogue, .screening, .updates, .manual, .records { padding-block: 88px; }
  .identity-layout { grid-template-columns: 58px 1fr; }
  .identity-copy { grid-column: 2; }
  .section-heading { grid-template-columns: 58px 1fr; }
  .section-heading > p { grid-column: 2; }
  .catalogue-item, .catalogue-item.wide, .catalogue-item.tall, .catalogue-item.wide-bottom { grid-column: span 6; min-height: 300px; }
  .screening-shell, .updates-shell, .records-layout, .faq { grid-template-columns: 1fr; gap: 50px; }
  .screening-title { position: static; }
  .principles { grid-column: 1; }
  .footer-layout { grid-template-columns: 1fr 1fr; }
  .footer-layout > div:last-child { grid-column: 1 / -1; text-align: left; }
}

@media (max-width: 640px) {
  :root { --page: calc(100% - 28px); }
  .hero-shell { padding-block: 54px; }
  .hero h1 { font-size: clamp(42px, 13vw, 64px); }
  .hero .kicker { margin-top: 32px; }
  .projection-zone { padding: 16px; box-shadow: 10px 10px 0 rgba(218,79,61,.12); }
  .projection-top { grid-template-rows: 54px; }
  .identity-layout, .section-heading { grid-template-columns: 1fr; gap: 24px; }
  .identity-copy, .section-heading > p { grid-column: 1; }
  .chapter-label { flex-direction: row; align-items: center; }
  .chapter-label span { font-size: 36px; }
  .chapter-label b { writing-mode: horizontal-tb; }
  .identity-title h2, .section-heading h2, .screening-title h2, .updates-intro h2, .faq h2, .records-title h2 { font-size: 38px; }
  .two-column-copy { grid-template-columns: 1fr; gap: 22px; }
  .catalogue-map { display: block; }
  .catalogue-item, .catalogue-item.wide, .catalogue-item.tall, .catalogue-item.wide-bottom { min-height: 0; margin-bottom: 10px; }
  .catalogue-item h3 { margin-top: 34px; }
  .screening-ledger { grid-template-columns: 1fr; }
  .screening-ledger .screening-main { grid-column: 1; min-height: 0; }
  .screening-main h3 { margin-top: 70px; font-size: 38px; }
  .screening-ledger article { min-height: 0; }
  .screening-ledger h3 { margin-top: 48px; }
  .logbook article { grid-template-columns: 1fr; gap: 11px; }
  .logbook article > span { justify-self: start; }
  .manual-flow { grid-template-columns: 1fr; }
  .manual-flow article { min-height: 0; }
  .faq { margin-top: 84px; padding-top: 48px; }
  .faq-list summary { font-size: 18px; }
  .credential-list > div { grid-template-columns: 1fr; gap: 5px; }
  .principles { grid-template-columns: 1fr; }
  .footer-layout { grid-template-columns: 1fr; }
  .footer-layout > div:last-child { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}

@media print {
  .site-header, .menu-button { display: none; }
  body, .hero, .catalogue, .updates, .records { background: #fff; color: #111; }
}