:root {
  color-scheme: dark;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: #f4f2ea;
  background: #050607;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: #050607; }
body { margin: 0; min-width: 320px; overflow-x: hidden; background: #050607; }
a { color: inherit; }

#space {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(circle at 72% 47%, rgba(151, 178, 168, .08), transparent 24%),
    #050607;
}

#space canvas { width: 100%; height: 100%; display: block; }

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: .16;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 18px clamp(22px, 4vw, 64px);
  border-bottom: 1px solid rgba(255,255,255,.12);
  background: rgba(5, 6, 7, .18);
  backdrop-filter: blur(10px);
}

.wordmark {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
}

.wordmark-mark {
  display: grid;
  place-items: center;
  width: 34px;
  aspect-ratio: 1;
  border: 1px solid rgba(255,255,255,.45);
  font-family: Arial, sans-serif;
  font-size: 11px;
}

.coordinate, .eyebrow, .section-index, .orbit-label, .scroll-cue {
  font-family: Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0;
}

.coordinate { color: rgba(255,255,255,.55); font-size: 10px; }

main, footer { position: relative; z-index: 2; }

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100svh;
  padding: 116px clamp(22px, 8vw, 130px) 84px;
}

.hero-copy { max-width: 960px; transform: translateY(-2vh); }
.eyebrow { margin: 0 0 20px; color: #a9b8b2; font-size: 11px; }

h1 {
  margin: 0;
  font-size: clamp(58px, 11vw, 158px);
  font-weight: 500;
  line-height: .94;
  letter-spacing: 0;
  text-shadow: 0 10px 50px rgba(0,0,0,.42);
}

.statement {
  margin: 26px 0 0;
  color: rgba(244,242,234,.82);
  font-size: clamp(18px, 2vw, 28px);
  line-height: 1.6;
}

.orbit-label {
  position: absolute;
  right: clamp(22px, 4vw, 64px);
  top: 50%;
  display: grid;
  grid-template-columns: auto 52px auto;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,.52);
  font-size: 9px;
  transform: rotate(90deg) translateX(50%);
  transform-origin: right top;
}

.orbit-label i { display: block; height: 1px; background: rgba(255,255,255,.35); }

.scroll-cue {
  position: absolute;
  left: clamp(22px, 4vw, 64px);
  bottom: 28px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(255,255,255,.62);
  font-size: 9px;
  text-decoration: none;
}

.scroll-cue i { width: 64px; height: 1px; overflow: hidden; background: rgba(255,255,255,.22); }
.scroll-cue i::after { content: ""; display: block; width: 34px; height: 1px; background: #d9e6df; animation: scan 2.8s ease-in-out infinite; }

.presence {
  min-height: 88svh;
  display: grid;
  align-content: center;
  padding: 120px clamp(22px, 9vw, 150px);
  background: linear-gradient(180deg, rgba(5,6,7,.08), rgba(5,6,7,.76) 34%, #050607 100%);
}

.section-index { margin: 0 0 46px; color: #8aa096; font-size: 10px; }

h2 {
  margin: 0;
  max-width: 1000px;
  font-size: clamp(35px, 6vw, 86px);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: 0;
}

.presence-note { margin: 48px 0 0; color: rgba(255,255,255,.5); font-size: 14px; }

footer {
  min-height: 190px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  padding: 46px clamp(22px, 4vw, 64px);
  border-top: 1px solid rgba(255,255,255,.12);
  background: #050607;
}

.footer-brand, .footer-meta { display: flex; flex-direction: column; gap: 10px; }
.footer-brand strong { font-size: 17px; font-weight: 500; }
.footer-brand span, .footer-meta { color: rgba(255,255,255,.48); font-size: 11px; }
.footer-meta { align-items: flex-end; }
.footer-meta a { text-decoration: none; }
.footer-meta a:hover { color: #fff; }
noscript { position: fixed; inset: auto 20px 20px; z-index: 8; padding: 10px; background: #050607; color: #fff; }

@keyframes scan { 0%, 100% { transform: translateX(-110%); } 50% { transform: translateX(190%); } }

@media (max-width: 720px) {
  .site-header { min-height: 66px; padding-block: 14px; }
  .coordinate, .orbit-label { display: none; }
  .hero { min-height: 92svh; padding-top: 92px; }
  .hero-copy { transform: none; }
  .eyebrow { margin-bottom: 16px; }
  h1 { font-size: clamp(52px, 18vw, 88px); }
  .statement { margin-top: 20px; }
  .presence { min-height: 76svh; padding-block: 96px; }
  .section-index { margin-bottom: 34px; }
  footer { align-items: flex-start; flex-direction: column; min-height: 220px; }
  .footer-meta { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scroll-cue i::after { animation: none; }
}