:root {
  color-scheme: light;
  --ink: #102822;
  --muted: #5f6f69;
  --paper: #f4f0e8;
  --paper-light: #fbfaf7;
  --accent: #d78b59;
  --line: rgba(16, 40, 34, 0.16);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper-light);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 1rem;
  z-index: 20;
  padding: .75rem 1rem;
  color: white;
  background: var(--ink);
  transform: translateY(-120%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
.hero,
.section-grid,
.brand-panel,
.site-footer {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  border-bottom: 1px solid var(--line);
}

.identity {
  display: inline-flex;
  gap: .75rem;
  align-items: center;
  color: var(--ink);
  font-size: .82rem;
  font-weight: 750;
  letter-spacing: .12em;
  text-decoration: none;
}

.monogram {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--paper-light);
  background: var(--ink);
  border-radius: 50%;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: 0;
}

nav {
  display: flex;
  gap: 2rem;
}

nav a,
.footer-links a {
  color: var(--muted);
  font-size: .86rem;
  text-decoration: none;
}

nav a:hover,
nav a:focus-visible,
.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: .3em;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: 4rem;
  align-items: center;
  min-height: 680px;
  padding: 7rem 0;
}

.eyebrow,
.section-number {
  margin: 0 0 1.5rem;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 750;
  letter-spacing: .18em;
  text-transform: uppercase;
}

h1,
h2 {
  margin-top: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  letter-spacing: -.035em;
}

h1 {
  max-width: 820px;
  margin-bottom: 2.25rem;
  font-size: clamp(3.3rem, 7.2vw, 6.8rem);
  line-height: .98;
}

h2 {
  margin-bottom: .3rem;
  font-size: clamp(2.2rem, 4vw, 4.2rem);
  line-height: 1.05;
}

.hero-intro {
  max-width: 650px;
  margin: .65rem 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
}

.zh {
  color: var(--muted);
}

.hero-mark {
  position: relative;
  display: grid;
  aspect-ratio: 1;
  max-width: 390px;
  place-items: center;
  justify-self: end;
}

.core {
  display: grid;
  width: 36%;
  aspect-ratio: 1;
  place-items: center;
  color: var(--paper-light);
  background: var(--ink);
  border-radius: 50%;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3rem, 6vw, 5.8rem);
}

.orbit {
  position: absolute;
  inset: 12%;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.orbit::after {
  position: absolute;
  top: 8%;
  right: 16%;
  width: 16px;
  height: 16px;
  background: var(--accent);
  border-radius: 50%;
  content: "";
}

.orbit-two {
  inset: 0;
  transform: rotate(52deg);
}

.orbit-two::after {
  width: 8px;
  height: 8px;
  background: var(--ink);
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(240px, .7fr) minmax(0, 1.3fr);
  gap: 5rem;
  padding: 8rem 0;
  border-top: 1px solid var(--line);
}

.zh-label {
  margin: .8rem 0 0;
  color: var(--muted);
  letter-spacing: .12em;
}

.section-copy {
  max-width: 720px;
}

.section-copy p,
.brand-copy p {
  margin-top: 0;
}

.lead {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.55rem, 2.6vw, 2.45rem);
  line-height: 1.35;
}

.brand-panel {
  display: grid;
  grid-template-columns: minmax(240px, .7fr) minmax(0, 1.3fr);
  gap: 5rem;
  padding: 7rem;
  color: var(--paper-light);
  background: var(--ink);
  border-radius: 2px;
}

.brand-panel h2 {
  font-size: clamp(3.5rem, 8vw, 7.5rem);
}

.section-number.light,
.brand-panel .zh {
  color: #b7c5c0;
}

.brand-copy .lead {
  color: var(--paper-light);
}

.text-link {
  display: inline-block;
  margin-top: 2rem;
  padding-bottom: .25rem;
  border-bottom: 1px solid currentColor;
  color: #f3ae80;
  font-weight: 700;
  text-decoration: none;
}

.text-link:hover,
.text-link:focus-visible {
  color: white;
}

.details {
  padding-bottom: 9rem;
}

.detail-list {
  border-top: 1px solid var(--line);
}

.detail-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
}

.detail-row > span {
  color: var(--muted);
  font-size: .88rem;
}

.detail-row strong {
  letter-spacing: .04em;
}

.detail-row address {
  font-style: normal;
}

.detail-row a {
  font-weight: 700;
  text-underline-offset: .25em;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  padding: 3rem 0 4rem;
  border-top: 1px solid var(--line);
}

.site-footer strong {
  font-size: .78rem;
  letter-spacing: .12em;
}

.site-footer p {
  margin: .2rem 0 0;
  color: var(--muted);
  font-size: .85rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.copyright {
  grid-column: 1 / -1;
  padding-top: 1rem;
}

@media (max-width: 820px) {
  .site-header,
  .hero,
  .section-grid,
  .brand-panel,
  .site-footer {
    width: min(100% - 32px, var(--max));
  }

  nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 5rem 0;
  }

  .hero-mark {
    width: min(72vw, 330px);
    justify-self: center;
  }

  .section-grid,
  .brand-panel {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .section-grid {
    padding: 5rem 0;
  }

  .brand-panel {
    width: 100%;
    padding: 5rem max(16px, calc((100vw - 100% + 32px) / 2));
  }
}

@media (max-width: 520px) {
  .site-header {
    min-height: 76px;
  }

  .identity {
    font-size: .72rem;
  }

  h1 {
    font-size: clamp(3rem, 15vw, 4.4rem);
  }

  .detail-row {
    grid-template-columns: 1fr;
    gap: .4rem;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .copyright {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}