:root {
  --ink: #0a0a0a;
  --paper: #f2f1ed;
  --muted: #a9a9a3;
  --line: rgba(255, 255, 255, 0.18);
  --accent: #c8ff38;
  --content: min(1440px, calc(100vw - 80px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: #fff;
  background: var(--ink);
  font-family: Inter, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 12px 18px;
  color: var(--ink);
  background: var(--accent);
}
.skip-link:focus { top: 16px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  height: 88px;
  padding: 0 max(40px, calc((100vw - 1440px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, height .3s ease;
}
.site-header.scrolled {
  height: 72px;
  background: rgba(10, 10, 10, .9);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 16px; }
.brand-mark { font-size: 25px; font-weight: 800; letter-spacing: -.08em; }
.brand-mark sup { font-size: 11px; vertical-align: top; }
.brand-divider { width: 1px; height: 26px; background: rgba(255,255,255,.45); }
.brand-name { font-size: 12px; line-height: 1.05; letter-spacing: .08em; }
.brand-name small { color: var(--muted); font-size: 8px; letter-spacing: .15em; }
nav { display: flex; gap: 34px; font-size: 12px; letter-spacing: .06em; }
nav a { position: relative; padding: 10px 0; }
nav a::after { content: ""; position: absolute; left: 0; bottom: 4px; width: 0; height: 1px; background: var(--accent); transition: width .25s ease; }
nav a:hover::after, nav a:focus-visible::after { width: 100%; }
.menu-button { display: none; width: 44px; height: 44px; border: 0; color: #fff; background: transparent; }
.menu-button span { display: block; width: 22px; height: 1px; margin: 6px auto; background: currentColor; }

.hero {
  position: relative;
  min-height: 100svh;
  padding: 160px max(40px, calc((100vw - 1440px) / 2)) 34px;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  position: absolute;
  inset: 0;
  opacity: .22;
  background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 9vw 9vw;
  mask-image: linear-gradient(to bottom, transparent 5%, #000 55%, transparent 100%);
}
.hero::before {
  content: "";
  position: absolute;
  width: 55vw;
  height: 55vw;
  right: -22vw;
  top: -28vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,255,56,.18), transparent 64%);
  pointer-events: none;
}
.hero-copy { position: relative; z-index: 2; align-self: end; padding-bottom: 120px; }
.eyebrow { display: flex; gap: 42px; margin: 0 0 42px; font-size: 10px; letter-spacing: .2em; color: #bdbdb7; }
.hero h1 { margin: 0; font-size: clamp(60px, 7.4vw, 126px); line-height: .94; letter-spacing: -.075em; font-weight: 700; }
.hero h1 span { display: block; }
.hero h1 .outline { color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.78); }
.hero-intro { margin: 48px 0 36px; display: grid; grid-template-columns: minmax(260px, 500px); gap: 8px; }
.hero-intro p { margin: 0; line-height: 1.65; font-size: 16px; }
.hero-intro p[lang="en"] { color: var(--muted); font-size: 12px; letter-spacing: .04em; }
.text-link { display: inline-flex; gap: 22px; align-items: center; padding-bottom: 8px; border-bottom: 1px solid #fff; font-size: 12px; letter-spacing: .08em; }
.text-link span { color: var(--accent); font-size: 18px; }

.hero-object { position: relative; z-index: 1; width: min(40vw, 560px); aspect-ratio: 1; justify-self: end; }
.core-mark { position: absolute; inset: 17%; display: flex; align-items: center; justify-content: center; font-weight: 850; font-size: clamp(90px, 13vw, 210px); letter-spacing: -.18em; transform: skewY(-7deg); text-shadow: 22px 26px 0 rgba(255,255,255,.06); }
.core-mark span { display: inline-block; }
.core-h { color: #fff; }
.core-two { color: var(--accent); font-size: .36em; align-self: flex-start; margin-top: 28%; }
.core-d { color: transparent; -webkit-text-stroke: 2px #fff; }
.orbit { position: absolute; border: 1px solid rgba(255,255,255,.28); border-radius: 50%; animation: orbit 20s linear infinite; }
.orbit::before { content: ""; position: absolute; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 26px var(--accent); }
.orbit-one { inset: 5%; transform: rotate(24deg); }
.orbit-one::before { left: 11%; top: 12%; }
.orbit-two { inset: 15%; border-style: dashed; animation-direction: reverse; animation-duration: 30s; }
.orbit-two::before { right: 2%; bottom: 32%; width: 5px; height: 5px; }
.object-label { position: absolute; padding: 7px 10px; border: 1px solid var(--line); color: #bcbcb7; font-size: 8px; letter-spacing: .17em; background: rgba(10,10,10,.72); }
.label-a { left: -4%; top: 20%; }
.label-b { right: -3%; top: 42%; }
.label-c { left: 8%; bottom: 15%; }
.hero-index { position: absolute; left: max(40px, calc((100vw - 1440px) / 2)); right: max(40px, calc((100vw - 1440px) / 2)); bottom: 30px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.hero-index div { display: flex; align-items: flex-end; gap: 14px; padding: 18px 24px 0 0; border-right: 1px solid var(--line); }
.hero-index div:last-child { border-right: 0; padding-left: 24px; }
.hero-index div:nth-child(2) { padding-left: 24px; }
.hero-index strong { font-size: 30px; letter-spacing: -.05em; }
.hero-index span { color: var(--muted); font-size: 8px; line-height: 1.4; letter-spacing: .14em; }

.manifesto { width: var(--content); margin: 0 auto; padding: 110px 0 140px; display: grid; grid-template-columns: 1fr 4fr 1fr; gap: 30px; border-bottom: 1px solid rgba(255,255,255,.12); }
.section-no { margin: 0; color: #8b8b86; font-size: 9px; letter-spacing: .18em; }
.manifesto-copy { margin: 0; max-width: 920px; font-size: clamp(32px, 4.2vw, 70px); line-height: 1.18; letter-spacing: -.045em; }
.manifesto-en { align-self: end; margin: 0; color: #8b8b86; font-size: 10px; line-height: 1.6; letter-spacing: .08em; text-transform: uppercase; }

.products { width: var(--content); margin: 0 auto; padding: 140px 0 180px; }
.section-heading { display: grid; grid-template-columns: 1.3fr .7fr; gap: 10vw; align-items: end; margin-bottom: 100px; }
.section-heading h2, .closing h2 { margin: 20px 0 0; font-size: clamp(48px, 6.2vw, 92px); line-height: .98; letter-spacing: -.065em; }
.section-heading > p { margin: 0; max-width: 470px; color: #aaa; font-size: 14px; line-height: 1.8; }
.product { position: relative; display: grid; grid-template-columns: 1.35fr .65fr; gap: 8vw; align-items: center; min-height: 780px; padding: 110px 0; border-top: 1px solid rgba(255,255,255,.16); }
.product-cad { grid-template-columns: .7fr 1.3fr; }
.product-visual { position: relative; overflow: hidden; background: #111; }
.product-visual::after { content: ""; position: absolute; inset: 0; border: 1px solid rgba(255,255,255,.16); pointer-events: none; }
.product-visual img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.2,.8,.2,1), filter .5s ease; }
.product:hover .product-visual > img { transform: scale(1.018); }
.visual-wide { aspect-ratio: 16 / 10; }
.visual-wide img { filter: saturate(.76) contrast(1.02); }
.visual-portrait { justify-self: end; width: min(100%, 700px); aspect-ratio: 4 / 4.8; }
.visual-portrait img { object-position: center 15%; filter: saturate(.72) contrast(1.02); }
.visual-portrait::before { content: ""; position: absolute; z-index: 1; inset: 0; background: linear-gradient(to bottom, transparent 55%, rgba(0,0,0,.45)); }
.visual-number { position: absolute; z-index: 2; right: 24px; top: 18px; font-size: 56px; font-weight: 700; letter-spacing: -.08em; color: rgba(255,255,255,.45); }
.visual-caption { position: absolute; z-index: 2; left: 22px; bottom: 20px; padding: 8px 10px; color: #fff; background: rgba(0,0,0,.76); font-size: 8px; letter-spacing: .18em; }
.product-copy { max-width: 520px; }
.status { display: flex; align-items: center; gap: 9px; margin-bottom: 56px; color: #a4a49e; font-size: 9px; letter-spacing: .14em; }
.status i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 15px rgba(200,255,56,.8); }
.product-code { margin: 0 0 16px; color: #696965; font-size: 10px; letter-spacing: .18em; }
.product h3 { margin: 0 0 32px; font-size: clamp(45px, 5vw, 76px); line-height: .95; letter-spacing: -.06em; }
.product h3 small { display: block; margin-top: 14px; color: #6f6f6a; font-size: 12px; font-weight: 500; line-height: 1; letter-spacing: .16em; text-transform: uppercase; }
.product-lead { margin: 0; font-size: 18px; line-height: 1.72; }
.product-en { margin: 14px 0 38px; color: #858580; font-size: 11px; line-height: 1.7; letter-spacing: .03em; }
.feature-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.18); }
.feature-list li { display: flex; justify-content: space-between; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.11); color: #c6c6c0; font-size: 12px; }
.feature-list li::after { content: "+"; color: var(--accent); }

.product-workbench { grid-template-columns: 1.2fr .8fr; }
.visual-app { min-height: 680px; display: grid; place-items: center; background: linear-gradient(145deg, #272922, #121411 58%, #080808); overflow: hidden; }
.visual-app::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 48px 48px; opacity: .3; }
.app-window { position: relative; z-index: 1; width: min(64%, 430px); height: 78%; overflow: hidden; border: 1px solid rgba(255,255,255,.46); border-radius: 8px; background: #f5f5f2; box-shadow: 0 35px 90px rgba(0,0,0,.55); transform: rotate(-2deg); }
.app-window img { width: 100%; height: calc(100% - 32px); object-fit: cover; object-position: top center; }
.window-bar { height: 32px; display: flex; align-items: center; gap: 6px; padding: 0 11px; color: #797973; border-bottom: 1px solid #d1d1cc; font-size: 7px; letter-spacing: .12em; }
.window-bar span { width: 7px; height: 7px; border-radius: 50%; background: #bbb; }
.window-bar span:first-child { background: #2f7c69; }
.window-bar b { margin-left: auto; font-weight: 500; }
.material-swatches { position: absolute; z-index: 2; right: 8%; bottom: 10%; display: grid; grid-template-columns: repeat(2, 68px); gap: 10px; }
.material-swatches i { width: 68px; height: 68px; border: 1px solid rgba(255,255,255,.55); background: #9d9b91; box-shadow: 0 12px 24px rgba(0,0,0,.25); }
.material-swatches i:nth-child(2) { background: repeating-linear-gradient(90deg, #54534c 0 2px, #88867c 2px 5px); }
.material-swatches i:nth-child(3) { background: radial-gradient(circle at 30% 40%, #bcb9ab 0 2px, transparent 3px), #79776e; background-size: 10px 10px; }
.material-swatches i:nth-child(4) { background: #293b35; }

.system { padding: 150px max(40px, calc((100vw - 1440px) / 2)); color: var(--ink); background: var(--accent); }
.section-heading.light { margin-bottom: 110px; }
.section-heading.light .section-no, .section-heading.light > p { color: rgba(10,10,10,.62); }
.system-flow { display: grid; grid-template-columns: 1fr 140px 1fr 140px 1fr; align-items: center; padding-top: 46px; border-top: 1px solid rgba(10,10,10,.24); }
.flow-item span { display: block; margin-bottom: 80px; color: rgba(10,10,10,.45); font-size: 11px; }
.flow-item strong { display: block; font-size: 19px; letter-spacing: -.02em; }
.flow-item p { margin: 8px 0 0; color: rgba(10,10,10,.58); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.flow-line { height: 1px; background: rgba(10,10,10,.34); position: relative; }
.flow-line i { position: absolute; right: -1px; top: -3px; width: 7px; height: 7px; border-top: 1px solid var(--ink); border-right: 1px solid var(--ink); transform: rotate(45deg); }

.closing { width: var(--content); margin: 0 auto; padding: 170px 0; display: grid; grid-template-columns: 1fr 3fr 1.2fr; gap: 40px; align-items: start; }
.closing h2 { margin: 0; }
.closing-meta { padding-top: 10px; }
.closing-meta p { margin: 0 0 16px; color: #aaa; font-size: 12px; line-height: 1.75; }
.closing-meta p[lang="en"] { font-size: 10px; letter-spacing: .06em; }
.button-link { grid-column: 2 / 3; justify-self: start; margin-top: 24px; display: inline-flex; align-items: center; gap: 44px; padding: 17px 20px; color: var(--ink); background: #fff; font-size: 11px; letter-spacing: .08em; transition: background .25s ease, transform .25s ease; }
.button-link:hover { background: var(--accent); transform: translateY(-2px); }

footer { padding: 64px max(40px, calc((100vw - 1440px) / 2)); display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: end; gap: 40px; border-top: 1px solid var(--line); color: #83837f; font-size: 9px; line-height: 1.7; letter-spacing: .08em; }
footer img { width: 126px; height: auto; opacity: .8; }
footer p { margin: 0; }
footer p span { font-size: 8px; }
.copyright { text-align: right; }

.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.8,.2,1); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@keyframes orbit { to { transform: rotate(384deg); } }

@media (max-width: 1000px) {
  :root { --content: calc(100vw - 48px); }
  .site-header { padding-inline: 24px; }
  nav { position: fixed; inset: 72px 0 auto; padding: 24px; display: none; flex-direction: column; gap: 8px; background: rgba(10,10,10,.97); border-bottom: 1px solid var(--line); }
  nav.open { display: flex; }
  nav a { padding: 13px 0; }
  .menu-button { display: block; }
  .hero { padding: 140px 24px 150px; grid-template-columns: 1fr; }
  .hero-copy { align-self: auto; padding-bottom: 20px; }
  .hero-object { position: absolute; right: -8vw; bottom: 70px; width: 55vw; opacity: .58; }
  .hero h1 { font-size: clamp(58px, 11vw, 96px); }
  .hero-index { left: 24px; right: 24px; }
  .manifesto { grid-template-columns: 1fr; }
  .manifesto-en { max-width: 320px; }
  .section-heading { grid-template-columns: 1fr; gap: 40px; }
  .product, .product-cad, .product-workbench { grid-template-columns: 1fr; gap: 54px; min-height: auto; }
  .product-cad .product-copy { order: 2; }
  .product-cad .product-visual { order: 1; width: 100%; justify-self: stretch; aspect-ratio: 16 / 10; }
  .product-cad .product-visual img { object-position: center 32%; }
  .product-copy { max-width: 680px; }
  .system { padding-inline: 24px; }
  .system-flow { grid-template-columns: 1fr 50px 1fr 50px 1fr; }
  .closing { grid-template-columns: 1fr; }
  .button-link { grid-column: 1; }
}

@media (max-width: 620px) {
  :root { --content: calc(100vw - 36px); }
  .site-header { height: 70px; padding-inline: 18px; }
  .brand-divider, .brand-name { display: none; }
  .hero { min-height: 820px; padding: 120px 18px 170px; align-items: start; }
  .hero h1 { font-size: clamp(48px, 15vw, 74px); }
  .eyebrow { gap: 18px; margin-bottom: 30px; font-size: 8px; }
  .hero-intro { margin-top: 34px; }
  .hero-object { width: 82vw; right: -28vw; bottom: 84px; opacity: .4; }
  .hero-index { left: 18px; right: 18px; grid-template-columns: repeat(3, 1fr); }
  .hero-index div { display: block; padding: 14px 6px 0 0; }
  .hero-index div:nth-child(2), .hero-index div:last-child { padding-left: 10px; }
  .hero-index strong { display: block; margin-bottom: 6px; font-size: 20px; }
  .hero-index span { font-size: 6px; }
  .manifesto { padding: 90px 0; }
  .manifesto-copy { font-size: 34px; }
  .products { padding: 100px 0; }
  .section-heading { margin-bottom: 70px; }
  .section-heading h2, .closing h2 { font-size: 46px; }
  .product { padding: 70px 0; }
  .product h3 { font-size: 48px; }
  .status { margin-bottom: 38px; }
  .visual-wide, .product-cad .product-visual { aspect-ratio: 4 / 3; }
  .visual-app { min-height: 510px; }
  .app-window { width: 72%; height: 82%; }
  .material-swatches { right: 4%; grid-template-columns: repeat(2, 46px); }
  .material-swatches i { width: 46px; height: 46px; }
  .system { padding: 100px 18px; }
  .system-flow { grid-template-columns: 1fr; gap: 28px; }
  .flow-item { padding: 22px 0; border-bottom: 1px solid rgba(10,10,10,.23); }
  .flow-item span { margin-bottom: 32px; }
  .flow-line { display: none; }
  .closing { padding: 110px 0; gap: 28px; }
  footer { padding: 50px 18px; grid-template-columns: 1fr; }
  footer img { width: 110px; }
  .copyright { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}