/* TERAON renewal concept — scroll-driven homepage */
:root {
  --ink: #09090a;
  --ink-2: #111113;
  --ink-3: #19191c;
  --paper: #f3f0ea;
  --paper-2: #e8e3da;
  --fg: #f5f2ec;
  --fg-dim: rgba(245, 242, 236, .7);
  --fg-faint: rgba(245, 242, 236, .42);
  --line: rgba(245, 242, 236, .12);
  --dk: #141416;
  --dk-dim: rgba(20, 20, 22, .7);
  --dk-line: rgba(20, 20, 22, .12);
  --orange: #e2561f;
  --orange-hot: #ff6a2b;
  --amber: #ffb04a;
  --hot-white: #fff1d6;
  --blue: #2f6bff;
  --ice: #a7cbff;
  --navy: #050a18;
  --navy-2: #0a1430;
  --thermal: linear-gradient(90deg, #160f45 0%, #5a2fd6 18%, #c42a8c 38%, #ff5a1f 60%, #ffb04a 80%, #fff1d6 100%);
  --hot: linear-gradient(90deg, #ff5a1f, #ffb04a 70%, #fff1d6);
  --maxw: 1360px;
  --gutter: clamp(20px, 4.2vw, 64px);
  --edge: max(var(--gutter), calc((var(--vw, 100vw) - var(--maxw)) / 2));
  --hd: 76px;
  --ff: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  --ff-d: "Sora", "Pretendard Variable", Pretendard, sans-serif;
  --ff-m: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease: cubic-bezier(.2, .7, .1, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--fg);
  font-family: var(--ff);
  font-size: 17px;
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: anywhere;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}
body.is-loading { overflow: hidden; }
img, video, canvas, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }
sup { font-size: .5em; vertical-align: super; line-height: 0; margin-left: .04em; }
sub { font-size: .62em; line-height: 0; }
code { white-space: nowrap; }
::selection { background: var(--orange); color: #fff; }

.wrap { width: 100%; max-width: calc(var(--maxw) + var(--gutter) * 2); margin-inline: auto; padding-inline: var(--gutter); }
/* codes, labels and figures never split mid-token */
.eyebrow, .kicker, .mono, .tags li, .mcard__codes a, .tds, .hd__nav a, .btn, .split__word, .marquee__track, .scale, .ptable thead th, .attach li b, .process__list b, .ev__desc-t { overflow-wrap: normal; }
.num b, .stat b, .spec b, .yr b { overflow-wrap: normal; white-space: nowrap; }
.hero__title .line > span, .bond__title .line > span { text-wrap: balance; }
/* scroll reveal */
.rv { opacity: 0; transform: translate3d(0, 44px, 0); transition: opacity .9s var(--ease), transform 1.2s var(--ease); transition-delay: var(--d, 0s); }
.rv.is-in { opacity: 1; transform: none; }
.rv-img { clip-path: inset(12% 0 12% 0 round 22px); transition: clip-path 1.3s var(--ease); }
.rv-img img { transform: scale(1.18); transition: transform 1.6s var(--ease); }
.rv-img.is-in { clip-path: inset(0 0 0 0 round 0); }
.rv-img.is-in img { transform: scale(1); }
.mono { font-family: var(--ff-m); font-size: 14px; letter-spacing: .04em; }
.eyebrow {
  display: block;
  font: 500 14px/1.5 var(--ff-m); letter-spacing: .08em; text-transform: uppercase;
  color: var(--orange-hot);
}
.eyebrow::before { content: ""; display: inline-block; width: 28px; height: 1px; margin-right: 12px; background: currentColor; vertical-align: middle; transform: translateY(-2px); }
.eyebrow--cool { color: var(--ice); }
.title {
  margin-top: 22px;
  font-size: clamp(34px, 4.6vw, 72px); font-weight: 700; line-height: 1.14; letter-spacing: -.035em;
  text-wrap: balance;
}
.lead {
  margin-top: 26px; max-width: 34em;
  font-size: clamp(17px, 1.25vw, 19px); line-height: 1.78; color: var(--fg-dim);
  text-wrap: pretty;
}
.link-arrow {
  display: inline-flex; align-items: center; gap: 12px; margin-top: 28px;
  font-weight: 700; font-size: 16px; padding-bottom: 6px; border-bottom: 1px solid currentColor;
}
.link-arrow::after { content: "→"; transition: transform .4s var(--ease); }
.link-arrow:hover::after { transform: translateX(6px); }
.link-arrow--dark { color: var(--dk); }

/* ---------- loader ---------- */
.loader {
  position: fixed; inset: 0; z-index: 200; background: #050506;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 30px;
  clip-path: inset(0 0 0 0); transition: clip-path 1.1s var(--ease);
}
.loader.is-done { clip-path: inset(0 0 100% 0); pointer-events: none; }
.loader__logo svg { width: min(58vw, 340px); height: auto; color: #fff; overflow: visible; }
.logo-anim path { opacity: 0; transform: translateY(40%); transform-box: fill-box; animation: lgIn 1s var(--ease) forwards; }
.logo-anim path:nth-child(2) { animation-delay: .08s; }
.logo-anim path:nth-child(3) { animation-delay: .16s; }
.logo-anim path:nth-child(4) { animation-delay: .24s; }
.logo-anim path:nth-child(5) { animation-delay: .32s; }
.logo-anim path.lg-bar { transform: translateY(-160%); animation: lgDrop .9s .7s var(--ease) forwards; }
.logo-anim path:nth-child(7) { animation-delay: .4s; }
@keyframes lgIn { to { opacity: 1; transform: none; } }
@keyframes lgDrop { 0% { opacity: 0; transform: translateY(-160%); } 60% { opacity: 1; } 100% { opacity: 1; transform: none; filter: drop-shadow(0 0 6px #ff6a2b); } }
.loader__bar { width: min(58vw, 340px); height: 2px; background: rgba(255, 255, 255, .12); overflow: hidden; }
.loader__bar i { display: block; height: 100%; background: var(--thermal); transform: scaleX(var(--p, 0)); transform-origin: left; transition: transform .3s; }
.loader__txt { font: 400 14px var(--ff-m); letter-spacing: .06em; color: var(--fg-faint); }

/* ---------- cursor ---------- */
.cursor { position: fixed; left: 0; top: 0; z-index: 150; pointer-events: none; display: none; }
.has-cursor .cursor { display: block; }
.cursor__dot, .cursor__heat { position: absolute; left: 0; top: 0; border-radius: 50%; }
.cursor__dot { width: 6px; height: 6px; margin: -3px 0 0 -3px; background: #fff; mix-blend-mode: difference; }
.cursor__heat {
  width: 150px; height: 150px; margin: -75px 0 0 -75px;
  background: radial-gradient(circle, rgba(255, 150, 70, .3), rgba(255, 90, 31, .1) 42%, transparent 70%);
  mix-blend-mode: screen; transform: scale(var(--s, .6)); transition: transform .45s var(--ease), opacity .3s;
}
.cursor.is-cool .cursor__heat { background: radial-gradient(circle, rgba(120, 180, 255, .3), rgba(47, 107, 255, .1) 42%, transparent 70%); }

/* ---------- header ---------- */
.hd {
  position: fixed; inset: 0 0 auto; z-index: 60; height: var(--hd); color: var(--fg);
  transition: transform .55s var(--ease), color .35s, background-color .35s, backdrop-filter .35s;
}
.hd.is-hidden { transform: translateY(-100%); }
.hd.is-solid { background: rgba(9, 9, 10, .72); -webkit-backdrop-filter: blur(16px) saturate(1.3); backdrop-filter: blur(16px) saturate(1.3); }
.hd[data-tone="light"] { color: var(--dk); }
.hd[data-tone="light"].is-solid { background: rgba(243, 240, 234, .8); }
.hd__in { height: 100%; display: flex; align-items: center; gap: 36px; max-width: calc(var(--maxw) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.hd__logo svg { width: 136px; height: auto; }
.hd__nav { display: flex; gap: clamp(20px, 2.4vw, 36px); margin-left: auto; }
.hd__nav a { position: relative; font-size: 15px; font-weight: 600; opacity: .8; transition: opacity .3s; }
.hd__nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .4s var(--ease); }
.hd__nav a:hover, .hd__nav a.is-on { opacity: 1; }
.hd__nav a:hover::after, .hd__nav a.is-on::after { transform: scaleX(1); transform-origin: left; }
.hd__cta { padding: 9px 18px; border-radius: 999px; border: 1px solid currentColor; font-size: 14px; font-weight: 700; transition: background-color .3s, border-color .3s, color .3s; }
.hd__cta:hover { background: var(--orange); border-color: var(--orange); color: #fff; }
.hd__burger { display: none; width: 44px; height: 44px; position: relative; margin-left: auto; }
.hd__burger span { position: absolute; left: 11px; right: 11px; height: 2px; background: currentColor; transition: transform .45s var(--ease); }
.hd__burger span:first-child { top: 17px; }
.hd__burger span:last-child { top: 25px; }
.nav-open .hd__burger span:first-child { transform: translateY(4px) rotate(45deg); }
.nav-open .hd__burger span:last-child { transform: translateY(-4px) rotate(-45deg); }
.nav-open .hd { color: var(--fg); background: transparent; backdrop-filter: none; transform: none; }
.mnav {
  position: fixed; inset: 0; z-index: 55; background: var(--ink);
  display: flex; flex-direction: column; justify-content: center; gap: 40px; padding: 100px var(--gutter) 48px;
  clip-path: inset(0 0 100% 0); transition: clip-path .7s var(--ease); visibility: hidden;
}
.nav-open .mnav { clip-path: inset(0 0 0 0); visibility: visible; }
.mnav__links { display: flex; flex-direction: column; gap: 6px; }
.mnav__links a { display: flex; align-items: baseline; gap: 16px; font-size: clamp(30px, 8vw, 44px); font-weight: 700; letter-spacing: -.03em; line-height: 1.35; }
.mnav__links small { font: 400 14px var(--ff-m); color: var(--orange-hot); }
.mnav__cta { align-self: flex-start; padding: 14px 24px; border-radius: 999px; background: var(--orange); color: #fff; font-weight: 700; }

/* ---------- scale meter ---------- */
.scale {
  position: fixed; right: clamp(14px, 1.6vw, 26px); top: 50%; z-index: 40; transform: translateY(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 14px; color: #fff; mix-blend-mode: difference;
  opacity: 0; transition: opacity .6s;
}
.scale.is-on { opacity: .9; }
.scale__label { font: 500 14px var(--ff-m); letter-spacing: .1em; writing-mode: vertical-rl; transform: rotate(180deg); }
.scale__rail { position: relative; width: 2px; height: 180px; background: rgba(255, 255, 255, .25); }
.scale__rail span { position: absolute; left: -5px; width: 12px; height: 1px; background: currentColor; top: calc(var(--p) * 100%); font-size: 0; }
.scale__mark { position: absolute; left: -4px; width: 10px; height: 10px; margin-top: -5px; border-radius: 50%; background: #ff6a2b; box-shadow: 0 0 12px #ff6a2b; top: calc(var(--s, 0) * 100%); transition: top .25s linear; }
.scale__val { font: 500 14px var(--ff-m); white-space: nowrap; writing-mode: vertical-rl; transform: rotate(180deg); }
.scale__val sup { font-size: .72em; }

/* ---------- canvas sequences ---------- */
.seq { position: absolute; inset: 0; width: 100%; height: 100%; background: #000; }

/* ---------- 1. hero ---------- */
.hero { position: relative; height: 320vh; background: #000; }
.hero__sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; }
.hero__shade {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, .5) 0%, rgba(0, 0, 0, 0) 22%, rgba(0, 0, 0, 0) 52%, rgba(0, 0, 0, .78) 100%),
    radial-gradient(120% 90% at 50% 45%, transparent 45%, rgba(0, 0, 0, .55) 100%);
}
.hero__inner { position: absolute; left: 0; right: 0; bottom: max(112px, calc(100vh - 100svh + 104px)); }
.kicker { display: inline-flex; align-items: center; gap: 12px; font: 500 14px/1.3 var(--ff-m); letter-spacing: .1em; text-transform: uppercase; color: var(--fg-dim); }
.hero__kicker { text-shadow: 0 1px 14px rgba(0, 0, 0, .85); }
.kicker .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--orange-hot); box-shadow: 0 0 14px var(--orange-hot); animation: pulse 2.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; transform: scale(.7); } }
.hero__title {
  margin-top: 22px; font-family: var(--ff-d); font-weight: 600;
  font-size: clamp(46px, 8.6vw, 156px); line-height: .96; letter-spacing: -.045em;
}
.hero__title .line, .bond__title .line { display: block; overflow: hidden; padding-bottom: .08em; margin-bottom: -.08em; }
.hero__title .line > span, .bond__title .line > span { display: inline-block; }
.is-loading .hero__title .line > span { transform: translateY(110%); }
.hero__title .line > span { transition: transform 1.2s var(--ease); }
.hero__title .line:nth-child(2) > span { transition-delay: .12s; }
.hero__lead { margin-top: 28px; max-width: 31em; font-size: clamp(16px, 1.3vw, 19px); line-height: 1.75; color: var(--fg-dim); text-wrap: pretty; }
.hero__phase { position: absolute; left: 0; right: 0; top: 50%; transform: translateY(-50%); opacity: 0; pointer-events: none; }
.hero__phase h2 { margin-top: 18px; font-size: clamp(32px, 4.2vw, 64px); font-weight: 700; line-height: 1.16; letter-spacing: -.035em; text-shadow: 0 2px 30px rgba(0, 0, 0, .5); }
.hero__phase p:not(.mono) { margin-top: 20px; max-width: 26em; font-size: clamp(16px, 1.25vw, 19px); color: var(--fg-dim); text-shadow: 0 1px 18px rgba(0, 0, 0, .7); }
.hero__phase .mono { color: var(--amber); }
.hero__phase--2 { text-align: right; }
.hero__phase--2 p:not(.mono) { margin-left: auto; }
.hero__scroll { position: absolute; left: 50%; bottom: max(22px, calc(100vh - 100svh + 18px)); transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 10px; font: 500 14px var(--ff-m); letter-spacing: .14em; color: var(--fg-dim); }
.hero__scroll i { position: relative; width: 1px; height: 40px; background: rgba(255, 255, 255, .2); overflow: hidden; }
.hero__scroll i::after { content: ""; position: absolute; left: 0; top: -40%; width: 100%; height: 40%; background: var(--orange-hot); animation: drip 1.8s var(--ease) infinite; }
@keyframes drip { to { top: 100%; } }
.hero__meter { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: rgba(255, 255, 255, .06); }
.hero__meter i { display: block; height: 100%; background: var(--thermal); transform: scaleX(var(--p, 0)); transform-origin: left; }

/* ---------- 2. about ---------- */
.about { background: var(--ink); padding: clamp(120px, 18vh, 220px) 0 clamp(96px, 13vh, 170px); }
.manifesto { margin-top: 40px; max-width: 23em; font-size: clamp(27px, 3.4vw, 54px); font-weight: 650; line-height: 1.42; letter-spacing: -.03em; color: var(--fg); }
.manifesto.is-split { color: rgba(245, 242, 236, .18); }
.manifesto--sub { max-width: 31em; margin-top: 1.3em; font-size: clamp(20px, 2vw, 30px); font-weight: 550; line-height: 1.55; }
.manifesto .w { transition: color .15s linear; }
.facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: clamp(64px, 10vh, 120px); border-top: 1px solid var(--line); }
.facts li { padding: 28px 24px 0 0; }
.facts b { display: block; font-family: var(--ff-d); font-size: clamp(26px, 2.4vw, 38px); font-weight: 600; letter-spacing: -.03em; line-height: 1.2; }
.facts span { display: block; margin-top: 10px; font-size: 15px; color: var(--fg-dim); }

/* ---------- marquee ---------- */
.marquee { overflow: hidden; background: var(--ink); border-block: 1px solid var(--line); padding: clamp(22px, 3.4vh, 40px) 0; }
.marquee__track { display: flex; align-items: center; gap: clamp(28px, 3vw, 56px); padding-right: clamp(28px, 3vw, 56px); width: max-content; font-family: var(--ff-d); font-weight: 600; font-size: clamp(46px, 7.6vw, 128px); line-height: 1.05; letter-spacing: -.045em; white-space: nowrap; will-change: transform; }
.marquee__track span { color: transparent; -webkit-text-stroke: 1px rgba(245, 242, 236, .38); }
.marquee__track span:nth-of-type(odd) { background: var(--hot); -webkit-background-clip: text; background-clip: text; -webkit-text-stroke: 0; }
.marquee__track i { flex: none; width: .26em; height: .26em; border-radius: 50%; background: var(--orange); box-shadow: 0 0 24px var(--orange); }

/* ---------- 3. numbers ---------- */
.numbers { background: var(--ink); padding: clamp(80px, 12vh, 150px) 0 clamp(60px, 9vh, 120px); }
.numbers__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.num { padding: 34px 28px 40px 0; border-bottom: 1px solid var(--line); }
.num b {
  display: flex; align-items: baseline; gap: .06em;
  font-family: var(--ff-d); font-weight: 500; font-size: clamp(48px, 6.2vw, 100px); line-height: 1; letter-spacing: -.05em;
  background-image: var(--thermal); background-size: 500% 100%; background-position: var(--hp, 0%) 0;
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.num em, .stat em, .spec em { font-style: normal; }
.num b em { font-size: .36em; letter-spacing: -.01em; }
.num b em.pre { font-size: .5em; margin-right: .04em; }
.num > span { display: block; margin-top: 16px; font-size: 15px; color: var(--fg-dim); }

/* ---------- 4. split ---------- */
.split { position: relative; height: 270vh; background: #000; }
.split__sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); --o: 0; }
.split__half { position: relative; overflow: hidden; }
.split__half--warm { clip-path: inset(0 0 0 calc((1 - var(--o)) * 100%)); }
.split__half--cool { clip-path: inset(0 calc((1 - var(--o)) * 100%) 0 0); }
.split__half img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transform: scale(calc(1.25 - var(--o) * .25)); }
.split__half--warm img { object-position: 30% 50%; }
.split__half--cool img { object-position: 45% 50%; }
.split__half::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0, 0, 0, .2) 30%, rgba(0, 0, 0, .82) 100%); }
.split__copy { position: absolute; z-index: 1; left: clamp(20px, 4vw, 64px); right: clamp(20px, 4vw, 64px); bottom: clamp(36px, 9vh, 96px); opacity: 0; transform: translateY(30px); }
.split__half--warm .split__copy { left: var(--edge); }
.split__half--cool .split__copy { right: var(--edge); }
.split__copy h2 { margin-top: 18px; font-family: var(--ff-d); font-size: clamp(40px, 5vw, 84px); font-weight: 600; letter-spacing: -.045em; line-height: 1; }
.split__copy p:not(.eyebrow) { margin-top: 18px; max-width: 26em; font-size: clamp(16px, 1.2vw, 18px); color: var(--fg-dim); }
.split__half--cool .eyebrow { color: var(--ice); }
.split__center { position: absolute; inset: 0; z-index: 2; display: flex; align-items: center; justify-content: center; gap: clamp(16px, 2vw, 36px); pointer-events: none; }
.split__word { font-family: var(--ff-d); font-weight: 600; font-size: clamp(56px, 11vw, 200px); letter-spacing: -.05em; line-height: 1; }
.split__word--warm { background: linear-gradient(90deg, #ffb04a, #ff5a1f); -webkit-background-clip: text; background-clip: text; color: transparent; }
.split__word--cool { background: linear-gradient(90deg, #a7cbff, #2f6bff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.split__seam { width: 2px; height: 40vh; background: linear-gradient(180deg, transparent, #ff6a2b 30%, #a7cbff 70%, transparent); box-shadow: 0 0 30px rgba(255, 140, 80, .6); }
.split__caption { position: absolute; z-index: 2; left: 0; right: 0; top: calc(50% + clamp(60px, 8vw, 140px)); text-align: center; font-size: clamp(16px, 1.3vw, 20px); color: var(--fg-dim); }

/* ---------- 5. story ---------- */
.story { background: var(--ink); padding-top: clamp(110px, 15vh, 190px); }
.story__head { margin-bottom: clamp(40px, 6vh, 80px); }
.story__pin { position: relative; height: 760vh; }
.story__sticky {
  position: sticky; top: 0; height: 100vh; overflow: hidden;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.15fr); align-items: center; gap: clamp(28px, 4vw, 72px);
  padding: calc(var(--hd) + 16px) var(--edge) 96px;
}
.story__screen {
  order: 2; position: relative; aspect-ratio: 16 / 9; width: 100%; max-height: calc(100vh - var(--hd) - 150px);
  justify-self: end; border-radius: 22px; overflow: hidden; background: #000;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .07), 0 40px 120px -20px rgba(255, 90, 31, .22);
}
.story__screen .seq { background: #000; }
.story__glare { position: absolute; inset: 0; pointer-events: none; background: linear-gradient(120deg, rgba(255, 255, 255, .06), transparent 30%); }
.story__count, .story__src { position: absolute; top: 18px; color: #fff; text-shadow: 0 1px 10px rgba(0, 0, 0, .6); }
.story__count { left: 20px; }
.story__count b { color: var(--amber); font-weight: 500; }
.story__src { right: 20px; color: rgba(255, 255, 255, .7); }
.story__chapters { order: 1; position: relative; min-height: 300px; }
.chap { position: absolute; inset: 0 0 auto 0; opacity: 0; transform: translateY(26px); transition: opacity .5s, transform .7s var(--ease); pointer-events: none; }
.chap.is-on { opacity: 1; transform: none; pointer-events: auto; }
.chap__no { color: var(--orange-hot); }
.chap h3 { margin-top: 14px; font-size: clamp(28px, 2.7vw, 44px); font-weight: 700; line-height: 1.2; letter-spacing: -.03em; }
.chap p { margin-top: 18px; max-width: 22em; font-size: 17px; line-height: 1.78; color: var(--fg-dim); }
.story__rail { position: absolute; left: var(--edge); right: var(--edge); bottom: 36px; display: flex; gap: 8px; }
.story__rail li { flex: 1; padding-top: 14px; position: relative; font-size: 14px; color: var(--fg-faint); transition: color .3s; --f: 0; }
.story__rail li::before, .story__rail li::after { content: ""; position: absolute; left: 0; top: 0; height: 2px; width: 100%; background: rgba(255, 255, 255, .12); }
.story__rail li::after { background: var(--hot); transform: scaleX(var(--f)); transform-origin: left; }
.story__rail li.is-on { color: var(--fg); }

/* ---------- 6. ev ---------- */
.ev { background: var(--paper); color: var(--dk); }
.ev .lead { color: var(--dk-dim); }
.ev .eyebrow { color: var(--orange); }
.ev__pin { position: relative; height: 480vh; }
.ev__sticky {
  position: sticky; top: 0; height: 100vh; overflow: hidden;
  display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.55fr); align-items: center; gap: clamp(28px, 4vw, 72px);
  padding: calc(var(--hd) + 10px) var(--edge) 40px;
}
.parts { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; margin-top: 34px; }
.parts li { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--dk-line); font-size: 16px; font-weight: 600; color: rgba(20, 20, 22, .38); transition: color .35s; position: relative; }
.parts li .mono { color: rgba(20, 20, 22, .38); transition: color .35s; }
.parts li::after { content: ""; position: absolute; left: 0; top: -1px; height: 2px; width: 100%; background: var(--hot); transform: scaleX(0); transform-origin: left; transition: transform .6s var(--ease); }
.parts li.is-on { color: var(--dk); }
.parts li.is-on .mono { color: var(--orange); }
.parts li.is-on::after { transform: scaleX(1); }
.ev__frame { position: relative; aspect-ratio: 980 / 556; border-radius: 22px; overflow: hidden; background: #ececec; }
.ev__frame img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ev__img { opacity: 0; }
.ev__desc { margin-top: 26px; min-height: 92px; transition: opacity .3s; }
.ev__desc.is-swap { opacity: 0; }
.ev__desc-t { font-family: var(--ff-d); font-size: 22px; font-weight: 600; letter-spacing: -.02em; color: var(--orange); }
.ev__desc-p { margin-top: 8px; font-size: 17px; color: var(--dk-dim); max-width: 34em; }
.ev__stats { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 2fr); gap: 24px 48px; padding-top: 20px; padding-bottom: clamp(110px, 15vh, 180px); align-items: start; }
.stat { border-top: 2px solid var(--dk); padding-top: 22px; }
.stat b { display: flex; align-items: baseline; font-family: var(--ff-d); font-weight: 500; font-size: clamp(60px, 7.4vw, 120px); line-height: 1; letter-spacing: -.055em; color: var(--orange); }
.stat b em { font-size: .4em; letter-spacing: -.01em; }
.stat p { margin-top: 12px; font-size: 16px; color: var(--dk-dim); }
.hands { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.hands img { border-radius: 14px; width: 100%; aspect-ratio: 650 / 350; object-fit: cover; }
.hands figcaption { margin-top: 8px; font: 500 14px var(--ff-m); letter-spacing: .06em; }

/* ---------- 7. apps ---------- */
.apps { background: var(--ink); }
.apps__pin { position: relative; height: 420vh; }
.apps__sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; display: flex; flex-direction: column; justify-content: center; }
.apps__track { display: flex; align-items: stretch; gap: clamp(18px, 2.4vw, 40px); width: max-content; padding: calc(var(--hd) - 20px) var(--edge) 0; height: min(80vh, 780px); will-change: transform; }
.apps__intro { flex: 0 0 clamp(300px, 30vw, 460px); display: flex; flex-direction: column; justify-content: center; padding-right: 2vw; }
.apps__hint { margin-top: 36px; color: var(--orange-hot); }
.app { flex: 0 0 clamp(320px, 62vw, 1000px); display: grid; grid-template-rows: minmax(0, 1fr) auto; border-radius: 26px; overflow: hidden; background: var(--ink-2); border: 1px solid var(--line); }
.app__media { position: relative; overflow: hidden; background: #000; }
.app__media > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transform: scale(1.14) translateX(var(--px, 0px)); }
.app__body { display: grid; grid-template-columns: minmax(0, auto) minmax(0, 1fr); grid-template-areas: "no no" "h p" "t t"; gap: 8px 36px; padding: 26px 32px 30px; align-items: start; }
.app__no { grid-area: no; color: var(--orange-hot); }
.app__body h3 { grid-area: h; font-size: clamp(32px, 3vw, 48px); font-weight: 700; letter-spacing: -.035em; line-height: 1.1; }
.app__body > p:not(.app__no) { grid-area: p; font-size: 16px; color: var(--fg-dim); line-height: 1.72; max-width: 40em; }
.tags { grid-area: t; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.tags li { padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line); font-size: 14px; color: var(--fg); }
.room__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transform: scale(1.02); }
.room__img:first-child { opacity: 1; }
.room__state { position: absolute; left: 18px; top: 18px; display: flex; gap: 6px; }
.room__state li { padding: 6px 12px; border-radius: 999px; background: rgba(0, 0, 0, .45); color: rgba(255, 255, 255, .6); backdrop-filter: blur(8px); transition: background-color .3s, color .3s; }
.room__state li.is-on { background: var(--orange); color: #fff; }
.apps__progress { position: absolute; left: var(--edge); right: var(--edge); bottom: 32px; height: 2px; background: rgba(255, 255, 255, .1); }
.apps__progress i { display: block; height: 100%; background: var(--hot); transform: scaleX(var(--p, 0)); transform-origin: left; }

/* ---------- 8. terabond ---------- */
.bond { background: var(--navy); color: var(--fg); }
.bond__pin { position: relative; height: 320vh; }
.bond__sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; }
.bond__sticky .seq { background: var(--navy); }
.bond__shade { position: absolute; inset: 0; pointer-events: none; background: linear-gradient(90deg, rgba(5, 10, 24, .82) 0%, rgba(5, 10, 24, .35) 45%, rgba(5, 10, 24, 0) 70%), linear-gradient(0deg, rgba(5, 10, 24, .7), transparent 40%); }
.bond__inner { position: absolute; left: 0; right: 0; top: 50%; transform: translateY(-50%); }
.bond__title { margin-top: 22px; font-family: var(--ff-d); font-weight: 600; font-size: clamp(38px, 5.8vw, 100px); line-height: 1; letter-spacing: -.045em; }
.bond__lead { margin-top: 26px; font-size: clamp(17px, 1.4vw, 22px); color: var(--fg-dim); max-width: 26em; }
.bond__claim { position: absolute; left: 0; right: 0; bottom: max(64px, calc(100vh - 100svh + 48px)); opacity: 0; }
.bond__claim p:first-child { max-width: 21em; font-size: clamp(22px, 2.5vw, 38px); font-weight: 700; line-height: 1.4; letter-spacing: -.03em; text-shadow: 0 2px 30px rgba(0, 0, 0, .5); text-wrap: balance; }
.bond__claim b { color: var(--ice); }
.bond__claim .mono { margin-top: 14px; color: var(--ice); }

.stack { position: relative; height: 380vh; background: radial-gradient(70% 60% at 70% 50%, #0d1c45 0%, var(--navy) 70%); }
.stack__sticky {
  position: sticky; top: 0; height: 100vh; overflow: hidden;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); align-items: center; gap: clamp(24px, 3vw, 56px);
  padding: calc(var(--hd) + 10px) var(--edge) 40px;
}
.stack .lead { color: var(--fg-dim); }
.attach { margin-top: 36px; }
.attach li { display: flex; align-items: baseline; gap: 18px; padding: 15px 0; border-top: 1px solid rgba(167, 203, 255, .16); color: rgba(245, 242, 236, .4); transition: color .35s; position: relative; }
.attach li b { min-width: 8.6em; font-family: var(--ff-d); font-size: 19px; font-weight: 600; letter-spacing: -.02em; }
.attach li span { font-size: 16px; }
.attach li::before { content: ""; position: absolute; left: -22px; top: 50%; width: 8px; height: 8px; margin-top: -4px; border-radius: 50%; background: var(--ice); box-shadow: 0 0 14px var(--ice); opacity: 0; transition: opacity .3s; }
.attach li.is-on { color: var(--fg); }
.attach li.is-on b { color: var(--ice); }
.attach li.is-on::before { opacity: 1; }
.stack__scene { position: relative; height: 100%; display: grid; place-items: center; perspective: 2400px; }
.iso { --gap: 10px; --rz: -40deg; position: relative; width: min(30vw, 440px); aspect-ratio: 1; transform-style: preserve-3d; transform: rotateX(58deg) rotateZ(var(--rz)); }
.ly { position: absolute; inset: 0; border-radius: 6px; transform-style: preserve-3d; transform: translateZ(calc(var(--z) * var(--gap))); transition: filter .4s, opacity .4s, box-shadow .4s; }
.ly::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: rgba(0, 0, 0, .55); transform: translateZ(-6px); }
.ly--sink { background: linear-gradient(135deg, #a3abb6, #5c636d 60%, #3c424a); }
.ly--sink .fins { position: absolute; inset: 0; border-radius: inherit; background: repeating-linear-gradient(90deg, rgba(255, 255, 255, .2) 0 5px, rgba(0, 0, 0, .15) 5px 16px); }
.ly--cu { inset: 7%; background: linear-gradient(135deg, #f0b07a, #b9692f 55%, #e39b5c); }
.ly--cer { inset: 4%; background: linear-gradient(135deg, #fbf9f4, #d8d3c8); }
.ly--cu2 { inset: 9%; }
.ly--paste { background: radial-gradient(circle at 30% 30%, #fbfdff, #c3ccd8 45%, #8d99a9); }
.ly--paste::before { content: ""; position: absolute; inset: 0; border-radius: inherit; background: repeating-radial-gradient(circle at 40% 40%, rgba(255, 255, 255, .45) 0 1px, transparent 1px 5px); mix-blend-mode: overlay; }
.ly--bottom { inset: 5%; }
.ly--die { inset: 31%; }
.ly--top { inset: 33.5%; }
.ly--leadp { inset: 14% 12% 74% 58%; }
.ly--lead { inset: 6% 4% 76% 56%; background: linear-gradient(135deg, #f3b17c, #c27236); transform: translateZ(calc(var(--z) * var(--gap) + var(--gap) * .5)); }
.ly--chip { inset: 32%; background: linear-gradient(135deg, #2a2e36, #121418); }
.ly--chip::before { content: ""; position: absolute; inset: 8%; border-radius: 3px; background: repeating-linear-gradient(0deg, rgba(160, 190, 255, .14) 0 1px, transparent 1px 12px), repeating-linear-gradient(90deg, rgba(160, 190, 255, .14) 0 1px, transparent 1px 12px); }
.ly--plate { inset: 29% 26% 29% 30%; background: linear-gradient(135deg, #e8a46e, #a75b26); }
.iso[data-on] .ly--paste { filter: brightness(.55) saturate(.6); }
.iso[data-on="die"] .ly--die, .iso[data-on="top"] .ly--top, .iso[data-on="lead"] .ly--leadp, .iso[data-on="bottom"] .ly--bottom {
  filter: none; background: radial-gradient(circle at 30% 30%, #ffffff, #cfe2ff 40%, #7ea8ec); box-shadow: 0 0 40px 6px rgba(120, 175, 255, .85), 0 0 0 1px rgba(255, 255, 255, .8);
}
.ly__tag {
  position: absolute; left: 100%; top: 50%; padding-left: 64px; white-space: nowrap;
  font: 500 14px var(--ff-m); letter-spacing: .04em; color: rgba(255, 255, 255, .85);
  transform-origin: 0 50%; transform: translateY(-50%) rotateZ(calc(-1 * var(--rz))) rotateX(-58deg);
  opacity: var(--tags, 0);
}
.ly__tag::before { content: ""; position: absolute; left: 6px; top: 50%; width: 50px; height: 1px; background: rgba(255, 255, 255, .45); }
.ly--paste .ly__tag { color: var(--ice); }
.heat { position: absolute; inset: 34%; transform-style: preserve-3d; transform: translateZ(calc(var(--z) * var(--gap))); pointer-events: none; opacity: var(--tags, 0); }
.heat i { position: absolute; width: 10px; height: 10px; margin: -5px; border-radius: 50%; background: radial-gradient(circle, #fff 0, #ffb04a 35%, rgba(255, 90, 31, 0) 70%); animation: heatdrop 2.6s linear infinite; }
.heat i:nth-child(1) { left: 20%; top: 30%; }
.heat i:nth-child(2) { left: 70%; top: 20%; animation-delay: -.4s; }
.heat i:nth-child(3) { left: 45%; top: 60%; animation-delay: -.8s; }
.heat i:nth-child(4) { left: 80%; top: 75%; animation-delay: -1.2s; }
.heat i:nth-child(5) { left: 30%; top: 85%; animation-delay: -1.6s; }
.heat i:nth-child(6) { left: 60%; top: 45%; animation-delay: -2s; }
.heat i:nth-child(7) { left: 15%; top: 65%; animation-delay: -2.3s; }
.heat i:nth-child(8) { left: 85%; top: 40%; animation-delay: -1s; }
@keyframes heatdrop {
  0% { transform: translateZ(0); opacity: 0; filter: none; }
  12% { opacity: 1; }
  100% { transform: translateZ(calc(var(--gap) * -6.2)); opacity: 0; filter: hue-rotate(185deg) saturate(1.6); }
}

.specs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 32px; padding-top: clamp(80px, 12vh, 140px); }
.spec { padding: 26px 0 30px; border-top: 1px solid rgba(167, 203, 255, .2); }
.spec__k { font-size: 15px; font-weight: 600; color: var(--fg-dim); }
.spec b { display: flex; align-items: baseline; gap: .08em; margin-top: 12px; font-family: var(--ff-d); font-weight: 500; font-size: clamp(42px, 4.4vw, 72px); line-height: 1; letter-spacing: -.05em; color: #fff; }
.spec b em { font-size: .55em; color: var(--ice); }
.spec b small { font-size: max(14px, .3em); letter-spacing: 0; color: var(--ice); margin-left: .2em; }
.spec__d { margin-top: 12px; font-size: 14px; color: var(--fg-faint); }

.process { padding-top: clamp(90px, 13vh, 160px); }
.process__head h3, .analysis__copy h3, .product__head h3 { margin-top: 18px; font-size: clamp(28px, 3vw, 46px); font-weight: 700; line-height: 1.2; letter-spacing: -.03em; }
.process__list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; margin-top: 40px; counter-reset: p; }
.process__list li { position: relative; }
.process__media { aspect-ratio: 215 / 155; border-radius: 16px; overflow: hidden; background: #0e1a38; }
.process__media img, .process__media video { width: 100%; height: 100%; object-fit: cover; }
.process__list .mono { display: block; margin-top: 16px; color: var(--ice); }
.process__list b { display: block; margin-top: 4px; font-family: var(--ff-d); font-size: 19px; font-weight: 600; letter-spacing: -.02em; }
.process__list li:not(:last-child)::after { content: "→"; position: absolute; right: -16px; top: 34%; color: var(--ice); font-size: 18px; }

.analysis { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.4fr); gap: 32px 56px; padding-top: clamp(90px, 13vh, 160px); align-items: center; }
.analysis__copy p:not(.eyebrow) { margin-top: 20px; color: var(--fg-dim); max-width: 30em; }
.analysis__media { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.analysis__media video { width: 100%; aspect-ratio: 530 / 272; object-fit: cover; border-radius: 16px; background: #0e1a38; }
.analysis__media figcaption { margin-top: 10px; font: 500 14px var(--ff-m); color: var(--ice); }
.analysis__list { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0 24px; margin-top: 16px; }
.analysis__list div { padding-top: 20px; border-top: 1px solid rgba(167, 203, 255, .2); }
.analysis__list dt { font-family: var(--ff-d); font-weight: 600; font-size: 18px; letter-spacing: -.02em; }
.analysis__list dt small { display: block; font: 400 14px var(--ff-m); color: var(--fg-faint); letter-spacing: 0; margin-top: 2px; }
.analysis__list dd { margin-top: 10px; font-size: 15px; line-height: 1.7; color: var(--fg-dim); }

.product { padding-top: clamp(90px, 13vh, 160px); padding-bottom: clamp(110px, 15vh, 190px); }
.table-scroll { margin-top: 36px; overflow-x: auto; border-radius: 18px; border: 1px solid rgba(167, 203, 255, .18); background: rgba(10, 20, 48, .5); }
.ptable { width: 100%; min-width: 680px; border-collapse: collapse; font-size: 15px; }
.ptable th, .ptable td { padding: 16px 22px; text-align: left; border-bottom: 1px solid rgba(167, 203, 255, .12); vertical-align: top; }
.ptable thead th { font-family: var(--ff-d); font-weight: 600; font-size: 16px; color: var(--ice); background: rgba(47, 107, 255, .1); }
.ptable tbody th { font-weight: 500; color: var(--fg-dim); width: 34%; }
.ptable tbody tr:last-child th, .ptable tbody tr:last-child td { border-bottom: 0; }
.tds { display: inline-block; margin-left: 10px; padding: 2px 10px; border-radius: 999px; border: 1px solid rgba(167, 203, 255, .5); font: 500 14px var(--ff-m); color: #fff; vertical-align: 2px; }
.tds:hover { background: var(--blue); border-color: var(--blue); }

/* ---------- 9. materials ---------- */
.mat { background: var(--paper); color: var(--dk); padding: clamp(120px, 16vh, 200px) 0 clamp(80px, 10vh, 120px); }
.mat .eyebrow { color: var(--orange); }
.mat .lead { color: var(--dk-dim); }
.mat__cards { margin-top: clamp(56px, 8vh, 96px); }
.mcard {
  position: sticky; top: calc(var(--hd) + 20px + var(--i) * 18px);
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); min-height: min(70vh, 620px);
  margin-bottom: 9vh; border-radius: 28px; overflow: hidden; background: #fff;
  box-shadow: 0 30px 80px -30px rgba(20, 20, 22, .25); transform-origin: 50% 0;
}
.mcard:last-child { margin-bottom: 0; }
.mcard__body { display: flex; flex-direction: column; justify-content: center; padding: clamp(28px, 4.4vw, 68px); }
.mcard__no { color: var(--orange); }
.mcard--cool .mcard__no { color: var(--blue); }
.mcard h3 { margin-top: 16px; font-size: clamp(30px, 3.2vw, 52px); font-weight: 700; letter-spacing: -.035em; line-height: 1.15; }
.mcard__body > p:not(.mcard__no):not(.mcard__codes) { margin-top: 18px; font-size: 17px; line-height: 1.78; color: var(--dk-dim); max-width: 30em; }
.ticks { margin-top: 22px; display: grid; gap: 8px; }
.ticks li { display: flex; align-items: baseline; gap: 12px; font-size: 16px; font-weight: 500; }
.ticks li::before { content: ""; flex: none; width: 14px; height: 2px; background: var(--orange); transform: translateY(-4px); }
.mcard--cool .ticks li::before { background: var(--blue); }
.mcard__codes { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.mcard__codes a { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--dk-line); font: 500 14px var(--ff-m); transition: background-color .3s, color .3s, border-color .3s; }
.mcard__codes a::after { content: " ↓"; color: var(--orange); }
.mcard__codes a:hover { background: var(--dk); color: #fff; border-color: var(--dk); }
.mcard__media { position: relative; overflow: hidden; background: #111; }
.mcard__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

/* ---------- 10. r&d ---------- */
.rnd { position: relative; overflow: hidden; background: #050506; padding: clamp(120px, 17vh, 210px) 0; }
.hexfield { position: absolute; inset: 0; width: 100%; height: 100%; }
.rnd__inner { position: relative; z-index: 1; pointer-events: none; }
.rnd__inner a, .rnd__grid li { pointer-events: auto; }
.rnd__head { max-width: 760px; }
.rnd__hint { margin-top: 28px; color: var(--amber); }
.rnd__grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; margin-top: clamp(56px, 9vh, 100px); }
.rnd__grid li { padding: 28px 24px 30px; border-radius: 20px; background: rgba(12, 12, 14, .66); border: 1px solid rgba(255, 255, 255, .09); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); transition: border-color .4s, transform .5s var(--ease); }
.rnd__grid li:hover { border-color: rgba(255, 140, 70, .55); transform: translateY(-6px); }
.rnd__grid .mono { color: var(--orange-hot); }
.rnd__grid h3 { margin-top: 18px; font-size: 20px; font-weight: 700; letter-spacing: -.02em; line-height: 1.35; }
.rnd__grid .en { margin-top: 6px; font: 400 14px/1.4 var(--ff-m); color: var(--fg-faint); }
.rnd__grid p:not(.en) { margin-top: 14px; font-size: 15px; line-height: 1.72; color: var(--fg-dim); }

/* ---------- 11. history ---------- */
.hist { background: var(--ink); }
.hist__pin { position: relative; height: 320vh; }
.hist__sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; display: flex; flex-direction: column; justify-content: center; gap: clamp(28px, 6vh, 64px); padding-top: var(--hd); }
.hist__viewport { overflow: hidden; }
.hist__track { display: flex; width: max-content; padding: 0 30vw 0 var(--edge); will-change: transform; }
.yr { flex: 0 0 clamp(270px, 25vw, 380px); padding: 0 36px 0 24px; border-left: 1px solid var(--line); position: relative; }
.yr::before { content: ""; position: absolute; left: -5px; top: 0; width: 9px; height: 9px; border-radius: 50%; background: #333; transition: background-color .4s, box-shadow .4s; }
.yr b { display: block; font-family: var(--ff-d); font-weight: 500; font-size: clamp(56px, 6.2vw, 104px); line-height: 1; letter-spacing: -.055em; color: rgba(245, 242, 236, .14); transition: color .5s; }
.yr ul { margin-top: 24px; }
.yr li { padding: 10px 0; border-top: 1px solid rgba(255, 255, 255, .07); font-size: 16px; color: var(--fg-faint); transition: color .5s; }
.yr.is-hot::before { background: var(--orange-hot); box-shadow: 0 0 16px var(--orange-hot); }
.yr.is-hot b { background: var(--hot); -webkit-background-clip: text; background-clip: text; color: transparent; }
.yr.is-hot li { color: var(--fg-dim); }
.hist__line { position: relative; height: 2px; }
.hist__line::before { content: ""; position: absolute; inset: 0 var(--gutter); background: rgba(255, 255, 255, .1); }
.hist__line i { position: absolute; inset: 0 var(--gutter); background: var(--thermal); transform: scaleX(var(--p, 0)); transform-origin: left; }

/* ---------- 12. quality ---------- */
.qa { background: var(--paper); color: var(--dk); padding: clamp(120px, 16vh, 200px) 0 clamp(80px, 10vh, 120px); }
.qa .eyebrow { color: var(--orange); }
.qa .lead { color: var(--dk-dim); }
.certs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; margin-top: clamp(48px, 7vh, 80px); }
.cert { perspective: 900px; }
.cert__img { aspect-ratio: 500 / 715; border-radius: 14px; overflow: hidden; background: #fff; box-shadow: 0 24px 60px -24px rgba(20, 20, 22, .3); transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transition: transform .35s var(--ease), box-shadow .35s; }
.cert__img img { width: 100%; height: 100%; object-fit: cover; }
.cert:hover .cert__img { box-shadow: 0 34px 70px -24px rgba(226, 86, 31, .35); }
.cert b { display: block; margin-top: 20px; font-family: var(--ff-d); font-size: 18px; font-weight: 600; letter-spacing: -.02em; }
.cert span { display: block; margin-top: 4px; font-size: 15px; color: var(--dk-dim); }
.mes { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(32px, 4vw, 72px); align-items: center; margin-top: clamp(90px, 13vh, 150px); }
.mes__media { border-radius: 26px; overflow: hidden; aspect-ratio: 16 / 10; }
.mes__media img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); }
.mes__body h3 { margin-top: 18px; font-size: clamp(26px, 2.6vw, 40px); font-weight: 700; line-height: 1.3; letter-spacing: -.03em; text-wrap: balance; }
.mes__list { margin-top: 28px; }
.mes__list li { display: grid; grid-template-columns: 5.5em minmax(0, 1fr); gap: 16px; padding: 16px 0; border-top: 1px solid var(--dk-line); }
.mes__list b { font-weight: 700; font-size: 17px; }
.mes__list span { font-size: 16px; color: var(--dk-dim); }

/* ---------- 13. news ---------- */
.news { background: var(--paper); color: var(--dk); padding: clamp(60px, 8vh, 100px) 0 clamp(120px, 16vh, 200px); }
.news .eyebrow { color: var(--orange); }
.news__head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 20px 40px; }
.news__head .eyebrow { width: 100%; }
.news__head .title { margin-top: 0; }
.news__head .link-arrow { margin-top: 0; }
.news__grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1fr); gap: 24px; margin-top: 48px; }
.ncard { display: block; }
.ncard__img { aspect-ratio: 16 / 10; border-radius: 18px; overflow: hidden; background: #ddd8cf; }
.ncard__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .9s var(--ease); }
.ncard:hover .ncard__img img { transform: scale(1.05); }
.ncard__img--doc { background: #fff; display: grid; place-items: center; }
.ncard__img--doc img { width: auto; height: 88%; object-fit: contain; }
.ncard__meta { margin-top: 18px; color: var(--orange); }
.ncard h3 { margin-top: 8px; font-size: clamp(18px, 1.45vw, 22px); font-weight: 700; line-height: 1.45; letter-spacing: -.02em; text-wrap: pretty; }
.ncard--big h3 { font-size: clamp(20px, 1.9vw, 28px); }

/* ---------- 14. finale ---------- */
.fin { background: #000; }
.fin__pin { position: relative; height: 330vh; }
.fin__sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; }
.fin__shade { position: absolute; inset: 0; pointer-events: none; background: rgba(2, 6, 18, var(--dark, .15)); }
.fin__line { position: absolute; left: var(--gutter); right: var(--gutter); top: 27%; text-align: center; transform: translateY(-50%); opacity: 0; font-size: clamp(34px, 5.6vw, 92px); font-weight: 700; letter-spacing: -.04em; line-height: 1.2; text-shadow: 0 2px 6px rgba(0, 0, 0, .35), 0 4px 48px rgba(0, 0, 0, .7); }
.fin__line--1 { color: var(--hot-white); }
.fin__end { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; opacity: 0; pointer-events: none; }
.fin__end.is-live { pointer-events: auto; }
.fin__logo { width: clamp(150px, 16vw, 230px); height: auto; color: #fff; }
.fin__tag { margin-top: 30px; font-family: var(--ff-d); font-weight: 600; font-size: clamp(38px, 6.4vw, 112px); line-height: 1; letter-spacing: -.05em; background: linear-gradient(90deg, #ffb04a, #fff1d6 45%, #a7cbff 75%, #5b8dff); -webkit-background-clip: text; background-clip: text; color: transparent; padding-bottom: .08em; text-wrap: balance; }
.fin__desc { margin-top: 26px; font-size: clamp(16px, 1.25vw, 19px); color: var(--fg-dim); max-width: 26em; }
.fin__btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 36px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 58px; padding: 0 30px; border-radius: 999px; font-size: 16px; font-weight: 700; transition: transform .4s var(--ease), box-shadow .4s, background-color .3s; }
.btn:hover { transform: translateY(-3px); }
.btn--hot { background: var(--orange); color: #fff; box-shadow: 0 14px 40px -10px rgba(226, 86, 31, .7); }
.btn--hot::after { content: "→"; }
.btn--ghost { border: 1px solid rgba(255, 255, 255, .35); color: #fff; -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); background: rgba(255, 255, 255, .06); }

/* ---------- footer ---------- */
.ft { background: #050506; color: var(--fg-faint); padding: 64px 0 48px; font-size: 15px; }
.ft__in { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 28px 56px; align-items: start; }
.ft__brand svg { width: 140px; height: auto; color: #fff; }
.ft__brand p { margin-top: 12px; color: var(--fg-dim); font-weight: 600; }
.ft__addr { font-style: normal; line-height: 1.8; }
.ft__addr a { color: var(--fg-dim); }
.ft__links { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: flex-end; max-width: 520px; }
.ft__links a { color: var(--fg-dim); transition: color .3s; }
.ft__links a:hover { color: #fff; }
.ft__copy { grid-column: 1 / -1; padding-top: 28px; border-top: 1px solid rgba(255, 255, 255, .08); font: 400 14px var(--ff-m); }

/* ---------- responsive ---------- */
@media (max-width: 1180px) {
  .hd__nav, .hd__cta { display: none; }
  .hd__burger { display: block; }
  .scale { display: none; }
  .rnd__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .analysis__list { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 20px; }
  .analysis__list div { padding-bottom: 20px; }
}

@media (max-width: 1023px) {
  :root { --hd: 64px; }
  .hd__logo svg { width: 116px; }
  .numbers__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts li { padding-bottom: 8px; }
  .story__sticky { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto; align-content: center; gap: 28px; padding-bottom: 86px; }
  .story__screen { order: 1; justify-self: stretch; max-height: none; }
  .story__chapters { order: 2; min-height: 200px; }
  .chap p { max-width: 36em; }
  .ev__sticky { grid-template-columns: minmax(0, 1fr); align-content: center; gap: 20px; }
  .ev__copy .lead { margin-top: 14px; }
  .parts { display: flex; gap: 8px; margin-top: 20px; overflow: hidden; scroll-behavior: smooth; }
  .parts li { flex: none; padding: 8px 14px; border: 1px solid var(--dk-line); border-radius: 999px; font-size: 15px; }
  .parts li::after { display: none; }
  .parts li.is-on { background: var(--dk); color: #fff; border-color: var(--dk); }
  .parts li.is-on .mono { color: var(--amber); }
  .ev__desc { margin-top: 16px; min-height: 0; }
  .ev__stats { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .stat--hands { grid-column: 1 / -1; }
  .stack__sticky { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr); align-content: start; gap: 8px; }
  .stack .title { font-size: clamp(30px, 6vw, 44px); }
  .stack .lead { margin-top: 14px; font-size: 16px; }
  .attach { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; margin-top: 18px; }
  .attach li { flex-direction: column; gap: 2px; padding: 10px 0; }
  .attach li b { min-width: 0; font-size: 17px; }
  .attach li span { font-size: 14px; }
  .attach li::before { display: none; }
  .iso { width: min(54vw, 340px); }
  .specs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process__list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 16px; }
  .process__list li::after { display: none; }
  .analysis { grid-template-columns: minmax(0, 1fr); }
  .mcard { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(180px, 34vh) auto; min-height: 0; top: calc(var(--hd) + 12px + var(--i) * 10px); margin-bottom: 6vh; }
  .mcard__media { order: -1; }
  .certs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mes { grid-template-columns: minmax(0, 1fr); }
  .news__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .ncard--big { grid-column: 1 / -1; }
  .ft__in { grid-template-columns: minmax(0, 1fr); }
  .ft__links { justify-content: flex-start; max-width: none; }
}

@media (max-width: 767px) {
  body { font-size: 16px; }
  .split__sticky { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr) minmax(0, 1fr); }
  .split__half--warm { clip-path: inset(calc((1 - var(--o)) * 100%) 0 0 0); }
  .split__half--cool { clip-path: inset(0 0 calc((1 - var(--o)) * 100%) 0); }
  .split__copy, .split__half--warm .split__copy, .split__half--cool .split__copy { left: var(--gutter); right: var(--gutter); bottom: 24px; }
  .split__copy h2 { margin-top: 10px; font-size: 40px; }
  .split__copy p:not(.eyebrow) { margin-top: 10px; font-size: 15px; line-height: 1.6; }
  .split__copy .link-arrow { margin-top: 12px; font-size: 15px; }
  .split__half--warm .split__copy { top: calc(var(--hd) + 8px); bottom: auto; }
  .split__center { flex-direction: column; gap: 10px; }
  .split__seam { width: 40vw; height: 2px; background: linear-gradient(90deg, transparent, #ff6a2b 30%, #a7cbff 70%, transparent); }
  .split__caption { top: auto; bottom: 18vh; }
  .hero__phase--2 { text-align: left; }
  .hero__phase--2 p:not(.mono) { margin-left: 0; }
  .story__rail li { font-size: 0; }
  .story__rail { bottom: 28px; }
  .story__count, .story__src { top: 12px; }
  .story__count { left: 14px; }
  .story__src { display: none; }
  .story__screen { border-radius: 16px; aspect-ratio: 4 / 3; }
  .apps__track { height: min(76vh, 640px); padding-top: calc(var(--hd) - 8px); }
  .apps__intro { flex-basis: 82vw; }
  .app { flex-basis: 84vw; border-radius: 20px; }
  .app__body { grid-template-columns: minmax(0, 1fr); grid-template-areas: "no" "h" "p" "t"; padding: 18px 20px 22px; gap: 6px; }
  .app__body > p:not(.app__no) { font-size: 15px; line-height: 1.65; }
  .app__body h3 { font-size: 28px; }
  .tags { margin-top: 6px; }
  .tags li { font-size: 14px; padding: 5px 12px; }
  .room__state { left: 12px; top: 12px; flex-wrap: wrap; }
  .bond__shade { background: linear-gradient(0deg, rgba(5, 10, 24, .85) 0%, rgba(5, 10, 24, .3) 55%, rgba(5, 10, 24, .55) 100%); }
  .bond__inner { top: auto; bottom: 40%; transform: none; }
  .specs { gap: 0 20px; }
  .spec b { font-size: 40px; }
  .analysis__media { grid-template-columns: minmax(0, 1fr); }
  .analysis__list { grid-template-columns: minmax(0, 1fr); }
  .mcard__codes { margin-top: 20px; }
  .rnd__grid { grid-template-columns: minmax(0, 1fr); }
  .certs { gap: 16px; }
  .cert b { font-size: 16px; }
  .cert span { font-size: 14px; }
  .mes__list li { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .news__grid { grid-template-columns: minmax(0, 1fr); }
  .yr { flex-basis: 78vw; }
  .ev__stats { gap: 24px 20px; }
  .stat b { font-size: 64px; }
  .num b { font-size: clamp(34px, 10.4vw, 46px); }
  .num { padding-right: 14px; }
  .ly__tag { display: none; }
  .split__half--warm::after { background: linear-gradient(0deg, rgba(0, 0, 0, .15) 30%, rgba(0, 0, 0, .82) 100%); }
}
@media (hover: none) {
  .rnd__hint { display: none; }
}

@media (max-width: 767px) and (max-height: 740px) {
  .ev__copy .lead { display: none; }
  .stack .lead { display: none; }
}

/* ---------- reduced motion ---------- */
html.reduce .hero, html.reduce .split, html.reduce .story__pin, html.reduce .ev__pin, html.reduce .apps__pin,
html.reduce .bond__pin, html.reduce .stack, html.reduce .hist__pin, html.reduce .fin__pin { height: auto; }
html.reduce .hero__sticky, html.reduce .split__sticky, html.reduce .story__sticky, html.reduce .ev__sticky, html.reduce .apps__sticky,
html.reduce .bond__sticky, html.reduce .stack__sticky, html.reduce .hist__sticky, html.reduce .fin__sticky { position: relative; min-height: 100vh; height: auto; }
html.reduce .split__sticky { --o: 1; height: 100vh; }
html.reduce .split__copy, html.reduce .split__center { opacity: 1; transform: none; }
html.reduce .split__center, html.reduce .split__caption { display: none; }
html.reduce .chap { position: relative; opacity: 1; transform: none; margin-bottom: 28px; }
html.reduce .story__sticky { align-items: start; }
html.reduce .story__rail { display: none; }
html.reduce .apps__track, html.reduce .hist__track { transform: none !important; }
html.reduce .apps__sticky, html.reduce .hist__viewport { overflow-x: auto; }
html.reduce .iso { --gap: 40px; --tags: 1; }
html.reduce .heat { display: none; }
html.reduce .fin__end { opacity: 1; pointer-events: auto; }
html.reduce .fin__line { display: none; }
html.reduce .bond__claim { opacity: 1; }
html.reduce .hero__title .line > span { transform: none; }
html.reduce .loader { display: none; }
html.reduce .manifesto { color: var(--fg); }