:root {
  color-scheme: light;
  --ink: #191918;
  --muted: #6f6e69;
  --paper: #f4f2ed;
  --warm: #ede5dc;
  --accent: #f13b1d;
  --line: rgba(25, 25, 24, 0.11);
  --max: 1180px;
  --radius: 32px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }

.company-shell { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }

.company-nav {
  position: sticky;
  z-index: 50;
  top: 0;
  background: rgba(244, 242, 237, 0.76);
  backdrop-filter: blur(22px) saturate(170%);
  -webkit-backdrop-filter: blur(22px) saturate(170%);
  transition: background 180ms ease, box-shadow 180ms ease;
}
.company-nav.is-scrolled { background: rgba(244, 242, 237, 0.94); box-shadow: 0 1px 0 var(--line); }
.nav-inner { width: min(calc(100% - 40px), var(--max)); height: 68px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.company-brand { display: inline-flex; align-items: baseline; gap: 10px; text-decoration: none; }
.brand-cn { font-size: 17px; font-weight: 720; letter-spacing: -.04em; }
.brand-en { color: var(--muted); font-size: 10px; font-weight: 760; letter-spacing: .15em; }
.nav-links { display: flex; align-items: center; gap: 27px; }
.nav-links a { color: #4e4d49; font-size: 13px; text-decoration: none; }
.nav-links a:hover { color: #000; }
.nav-product { padding: 9px 14px; border-radius: 999px; background: var(--ink); color: #fff !important; }
.nav-toggle { display: none; width: 42px; height: 42px; padding: 0; border: 0; border-radius: 50%; background: transparent; color: var(--ink); }
.nav-toggle svg { width: 22px; }

.hero { min-height: calc(100svh - 68px); padding: 84px 0 92px; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(420px, .95fr); align-items: center; gap: 78px; }
.eyebrow { margin: 0 0 20px; color: var(--accent); font-size: 12px; font-weight: 760; letter-spacing: .15em; }
.hero h1 { max-width: 720px; margin: 0; font-size: clamp(56px, 7vw, 92px); line-height: .99; font-weight: 730; letter-spacing: -.065em; }
.lead { max-width: 670px; margin: 30px 0 0; color: #575651; font-size: clamp(18px, 1.8vw, 22px); line-height: 1.72; letter-spacing: -.018em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { min-height: 48px; padding: 0 21px; border: 1px solid transparent; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 14px; font-weight: 680; text-decoration: none; transition: transform 130ms ease, background 160ms ease, box-shadow 160ms ease; }
.button:active { transform: scale(.97); }
.button.primary { background: var(--ink); color: #fff; }
.button.primary:hover { background: #000; box-shadow: 0 10px 28px rgba(0,0,0,.14); }
.button.quiet { border-color: var(--line); background: rgba(255,255,255,.58); }
.button.quiet:hover { background: #fff; }

.hero-art { position: relative; min-height: 590px; overflow: hidden; border: 1px solid rgba(255,255,255,.7); border-radius: 48px; background: radial-gradient(circle at 63% 42%, rgba(255,92,48,.19), transparent 32%), linear-gradient(145deg, rgba(255,255,255,.7), rgba(235,226,216,.66)); box-shadow: 0 35px 90px rgba(57,42,29,.1); }
.orbit { position: absolute; border: 1px solid rgba(35,34,31,.15); border-radius: 50%; transform: rotate(-18deg); }
.orbit-one { inset: 9% -23% 8% 12%; }
.orbit-two { inset: 21% -7% 20% 27%; border-color: rgba(241,59,29,.28); }
.orbit-three { inset: 33% 10% 34% 43%; }
.orbit::after { content: ""; position: absolute; top: 50%; left: -5px; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 7px rgba(241,59,29,.1); }
.orbit-label { position: absolute; padding: 8px 11px; border: 1px solid rgba(255,255,255,.78); border-radius: 999px; background: rgba(255,255,255,.68); color: #595852; font-size: 11px; font-weight: 650; backdrop-filter: blur(12px); }
.label-origin { top: 19%; left: 8%; }
.label-experience { top: 43%; right: 9%; }
.product-tile { position: absolute; right: 42px; bottom: 42px; left: 42px; padding: 20px; border: 1px solid rgba(255,255,255,.86); border-radius: 26px; display: grid; grid-template-columns: 72px 1fr auto; align-items: center; gap: 17px; background: rgba(255,255,255,.76); color: var(--ink); box-shadow: 0 20px 50px rgba(43,32,24,.12); text-decoration: none; backdrop-filter: blur(20px); transition: transform 220ms cubic-bezier(.2,.8,.2,1), box-shadow 220ms ease; }
.product-tile:hover { transform: translateY(-4px); box-shadow: 0 28px 60px rgba(43,32,24,.17); }
.product-tile:active { transform: scale(.985); }
.product-tile img { width: 72px; height: 72px; border-radius: 18px; }
.product-tile-copy { display: grid; gap: 3px; }
.product-tile-copy small { color: var(--accent); font-size: 9px; font-weight: 780; letter-spacing: .12em; }
.product-tile-copy strong { font-size: 22px; letter-spacing: -.04em; }
.product-tile-copy em { color: var(--muted); font-size: 12px; font-style: normal; }
.tile-arrow { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--ink); color: #fff; }

.evolution { padding: 132px 0 150px; display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; }
.section-intro h2, .product-heading h2 { margin: 0; font-size: clamp(42px, 5vw, 66px); line-height: 1.04; letter-spacing: -.055em; }
.section-intro > p:last-child { max-width: 470px; color: var(--muted); font-size: 17px; line-height: 1.7; }
.evolution-steps { border-top: 1px solid var(--line); }
.evolution-steps article { padding: 29px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 54px 1fr; gap: 18px; }
.evolution-steps article > span { padding-top: 5px; color: var(--accent); font-size: 11px; font-weight: 760; }
.evolution-steps h3 { margin: 0 0 9px; font-size: 24px; letter-spacing: -.035em; }
.evolution-steps p { margin: 0; color: var(--muted); line-height: 1.72; }

.product-section { padding: 128px 0; overflow: hidden; background: #191918; color: #fff; }
.product-layout { display: grid; grid-template-columns: .83fr 1.17fr; gap: 95px; align-items: center; }
.eyebrow.light { color: #ff7259; }
.product-heading > p:not(.eyebrow) { max-width: 520px; margin: 24px 0 0; color: rgba(255,255,255,.64); font-size: 18px; line-height: 1.75; }
.light-button { margin-top: 30px; background: #fff; color: #191918; }
.light-button:hover { background: #f4eee7; }
.atlas-card { min-height: 530px; padding: 28px; overflow: hidden; border: 1px solid rgba(255,255,255,.11); border-radius: 38px; display: grid; grid-template-rows: auto 1fr auto; background: radial-gradient(circle at 78% 22%, rgba(241,59,29,.24), transparent 35%), #232322; color: #fff; text-decoration: none; transition: transform 220ms cubic-bezier(.2,.8,.2,1), border-color 220ms ease; }
.atlas-card:hover { border-color: rgba(255,255,255,.25); transform: translateY(-4px); }
.atlas-card:active { transform: scale(.99); }
.atlas-card-top { display: grid; grid-template-columns: 46px 1fr auto; align-items: center; gap: 13px; }
.atlas-card-top img { width: 46px; height: 46px; border-radius: 12px; }
.atlas-card-top span { font-size: 17px; font-weight: 680; }
.atlas-card-top b { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; background: rgba(255,255,255,.09); }
.atlas-card svg { width: 100%; align-self: center; }
.atlas-card-bottom { display: flex; align-items: end; justify-content: space-between; gap: 20px; }
.atlas-card-bottom strong { font-size: clamp(28px, 3.5vw, 44px); line-height: 1.04; letter-spacing: -.05em; }
.atlas-card-bottom span { color: rgba(255,255,255,.48); font-size: 12px; }

.company-details { padding: 140px 0; display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; }
.detail-list { margin: 0; border-top: 1px solid var(--line); }
.detail-list div { padding: 23px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 145px 1fr; gap: 20px; }
.detail-list dt { color: var(--muted); }
.detail-list dd { margin: 0; font-weight: 620; }
.detail-list a { text-underline-offset: 3px; }

.company-footer { padding: 50px 0 35px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.footer-inner > div:first-child { display: flex; justify-content: space-between; gap: 20px; }
.footer-inner strong { color: var(--ink); font-size: 15px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 30px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--ink); }
.footer-inner p { margin: 22px 0 0; color: #999791; }

:focus-visible { outline: 3px solid rgba(241,59,29,.44); outline-offset: 4px; }

@media (max-width: 940px) {
  .hero { grid-template-columns: 1fr; gap: 50px; padding-top: 72px; }
  .hero-art { min-height: 520px; }
  .evolution, .product-layout, .company-details { grid-template-columns: 1fr; gap: 55px; }
  .product-heading { max-width: 700px; }
}

@media (max-width: 680px) {
  .company-shell, .nav-inner { width: min(calc(100% - 32px), var(--max)); }
  .brand-en { display: none; }
  .nav-toggle { display: grid; place-items: center; }
  .nav-links { position: absolute; top: 61px; right: 16px; left: 16px; padding: 12px; display: none; flex-direction: column; align-items: stretch; gap: 2px; border: 1px solid var(--line); border-radius: 18px; background: rgba(250,249,246,.97); box-shadow: 0 18px 50px rgba(0,0,0,.13); backdrop-filter: blur(22px); }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 12px; border-radius: 10px; }
  .nav-product { text-align: center; }
  .hero { min-height: auto; padding: 64px 0 80px; }
  .hero h1 { font-size: clamp(48px, 14vw, 66px); }
  .lead { font-size: 17px; line-height: 1.75; }
  .hero-art { min-height: 450px; border-radius: 34px; }
  .label-origin { top: 13%; }
  .label-experience { top: 38%; }
  .product-tile { right: 18px; bottom: 18px; left: 18px; padding: 15px; grid-template-columns: 58px 1fr auto; }
  .product-tile img { width: 58px; height: 58px; border-radius: 15px; }
  .product-tile-copy strong { font-size: 19px; }
  .product-tile-copy em { display: none; }
  .evolution, .company-details { padding: 92px 0; }
  .product-section { padding: 90px 0; }
  .atlas-card { min-height: 440px; padding: 22px; border-radius: 30px; }
  .atlas-card-bottom { align-items: start; flex-direction: column; }
  .detail-list div { grid-template-columns: 1fr; gap: 7px; }
  .footer-inner > div:first-child { flex-direction: column; }
}

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

@media (prefers-reduced-transparency: reduce) {
  .company-nav, .orbit-label, .product-tile { background: #fff; backdrop-filter: none; -webkit-backdrop-filter: none; }
}

@media (prefers-contrast: more) {
  :root { --muted: #454440; --line: rgba(0,0,0,.3); }
  .button.quiet { border-color: #555; }
}