:root {
  color-scheme: light;
  --surface-canvas: #f7f7f5;
  --surface-inverse: #101a21;
  --text-primary: #172126;
  --text-secondary: #4d5a60;
  --text-inverse: #f7f7f5;
  --text-inverse-muted: #d1dce0;
  --border-subtle: #cdd4d3;
  --border-inverse: #344048;
  --action-primary: #ffb088;
  --action-hover: #ffd1ba;
  --focus-light: #743719;
  --focus-dark: #ffd1ba;
  --gutter: clamp(1.25rem, 5.6vw, 6.5rem);
  --max-width: 80rem;
  font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--surface-canvas); color: var(--text-primary); }
a { color: inherit; }
h1, h2, p, dl, dd { margin: 0; }

:focus-visible {
  outline: 2px solid var(--focus-light);
  outline-offset: 4px;
}

.shell {
  width: min(100% - 2 * var(--gutter), var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 2;
  inset: 0.75rem auto auto 0.75rem;
  transform: translateY(-150%);
  padding: 0.75rem 1rem;
  background: var(--surface-canvas);
}

.skip-link:focus { transform: none; }

.site-header, .hero, .site-footer {
  color: var(--text-inverse);
  background: var(--surface-inverse);
}

.site-header :focus-visible, .hero :focus-visible, .site-footer :focus-visible {
  outline-color: var(--focus-dark);
}

.header-inner {
  min-height: 4.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 44px;
  flex: none;
  font-size: 1.0625rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-decoration: none;
}

.brand-mark {
  position: relative;
  width: 1.7rem;
  height: 1.7rem;
  border: 1.5px solid var(--action-primary);
  border-radius: 50%;
}

.brand-mark::before, .brand-mark::after {
  content: "";
  position: absolute;
  top: 0.5rem;
  width: 0.5rem;
  height: 0.35rem;
  border-bottom: 2px solid var(--action-primary);
}

.brand-mark::before {
  left: 0.29rem;
  border-radius: 0 0 0 95%;
  transform: rotate(25deg);
}

.brand-mark::after {
  right: 0.29rem;
  border-radius: 0 0 95% 0;
  transform: rotate(-25deg);
}

nav { display: flex; align-items: center; gap: clamp(0.5rem, 2.9vw, 2.5rem); }

nav a {
  display: flex;
  align-items: center;
  min-height: 44px;
  min-width: 44px;
  justify-content: center;
  padding-inline: 0.25rem;
  font-size: 0.875rem;
  white-space: nowrap;
  text-decoration: none;
}

nav a:hover, .site-footer a:hover { color: var(--action-primary); }

.hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(31rem, 47vw, 46rem);
  display: grid;
  align-items: center;
  border-top: 1px solid var(--border-inverse);
}

.hero-art, .hero-art img, .hero::after {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-art img { object-fit: cover; object-position: center 53%; }

.hero::after {
  content: "";
  background: linear-gradient(90deg, rgba(9, 17, 24, 0.95), rgba(9, 17, 24, 0.78) 28%, rgba(9, 17, 24, 0.14) 70%, transparent);
}

.hero-inner { position: relative; z-index: 1; padding-block: 4.75rem 5.25rem; }

.hero-place {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  margin-bottom: 1.4rem;
  color: var(--text-inverse-muted);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.15em;
}

.hero-place span { color: var(--action-primary); }

.hero h1 {
  font-size: clamp(3.5rem, 8.2vw, 7.5rem);
  line-height: 1.08;
  font-weight: 750;
  letter-spacing: 0.035em;
}

.hero-description {
  margin-top: 1.2rem;
  color: var(--text-inverse-muted);
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  line-height: 1.65;
}

.primary-link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  gap: 1.6rem;
  margin-top: 2rem;
  padding: 0.7rem 1rem 0.7rem 1.15rem;
  border-radius: 6px;
  background: var(--action-primary);
  color: var(--text-primary);
  font-weight: 650;
  font-size: 0.875rem;
  text-decoration: none;
  transition: background-color 160ms ease;
}

.primary-link:hover { background: var(--action-hover); }
.primary-link span { font-size: 1.125rem; }

.about {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  align-items: center;
  gap: clamp(2rem, 8vw, 9rem);
  padding-block: clamp(3.5rem, 8vw, 7rem);
}

.section-label {
  margin-bottom: 1.15rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 650;
  letter-spacing: 0.12em;
}

.about-statement {
  font-size: clamp(2.25rem, 4.8vw, 4.5rem);
  font-weight: 720;
  letter-spacing: -0.04em;
  line-height: 1.15;
}

.about-description {
  max-width: 26rem;
  margin-top: 1.25rem;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
}

.company-details > div {
  display: grid;
  gap: 0.55rem;
  padding-block: 1.2rem;
  border-top: 1px solid var(--border-subtle);
}

.company-details > div:last-child { border-bottom: 1px solid var(--border-subtle); }
.company-details dt { color: var(--text-secondary); font-size: 0.8125rem; }
.company-details dd { font-size: clamp(0.9375rem, 1.4vw, 1.125rem); font-weight: 620; overflow-wrap: anywhere; }

.footer-inner {
  min-height: 5.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem 1.25rem;
  padding-block: 1rem;
  color: var(--text-inverse-muted);
  font-size: 0.8125rem;
}

.site-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-underline-offset: 0.24em;
}

@media (max-width: 680px) {
  .header-inner { min-height: 4rem; }
  .hero { min-height: 36rem; align-items: start; }
  .hero-inner { padding-block: 3.4rem 12rem; }
  .hero-art {
    top: 5.5rem;
    height: calc(100% - 5.5rem);
    mask-image: linear-gradient(to bottom, transparent, #000 18%);
  }
  .hero-art img { object-position: center top; }
  .hero::after {
    background: linear-gradient(180deg, rgba(9, 17, 24, 0.95), rgba(9, 17, 24, 0.81) 29%, rgba(9, 17, 24, 0.22) 68%, rgba(9, 17, 24, 0.08));
  }
  .about { grid-template-columns: minmax(0, 1fr); }
  .footer-inner { flex-wrap: wrap; }
}

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