:root {
  --ink: #070b18;
  --ink-soft: #596373;
  --paper: #f3f6f9;
  --white: #ffffff;
  --navy: #07101f;
  --navy-soft: #0d1b35;
  --blue: #102750;
  --blue-deep: #0a1d3a;
  --cyan: #27b7e8;
  --cyan-pale: #e8f8fd;
  --line: #cfd6df;
  --line-dark: rgba(255, 255, 255, .2);
  --header-height: 56px;
  --shell: 1100px;
  --font-sans: "Helvetica Neue", "Noto Sans KR", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

#innovation,
#benefits,
#product,
#system,
#products,
#specs,
#contact { scroll-margin-top: var(--header-height); }

body {
  margin: 0;
  color: var(--ink);
  background: var(--navy);
  font-family: var(--font-sans);
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open, body.video-open { overflow: hidden; }

img { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration: none; }

button, a { -webkit-tap-highlight-color: transparent; }

button { color: inherit; font: inherit; }

p, h1, h2, h3, h4, figure, dl, dd, ul, ol { margin: 0; }

ul, ol { padding: 0; list-style: none; }

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

[hidden] { display: none !important; }

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1200;
  padding: 12px 16px;
  color: var(--navy);
  background: var(--white);
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.scroll-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1201;
  height: 2px;
  pointer-events: none;
}

.scroll-progress span { display: block; width: 0; height: 100%; background: var(--cyan); }

.cin-shell {
  width: min(calc(100% - 48px), var(--shell));
  margin-inline: auto;
}

.cin-kicker {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .14em;
  line-height: 1.5;
  text-transform: uppercase;
}

.cin-accent-rule {
  display: block;
  width: 50px;
  height: 2px;
  margin: 12px 0;
  background: var(--cyan);
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  color: var(--white);
  background: rgba(7, 11, 24, .08);
  transition: background-color .25s ease, border-color .25s ease;
}

.site-header.is-scrolled,
.site-header.is-menu-open {
  border-color: rgba(255, 255, 255, .12);
  background: rgba(7, 11, 24, .96);
}

.header-shell {
  display: grid;
  width: min(calc(100% - 48px), 1100px);
  height: 100%;
  margin: 0 auto;
  grid-template-columns: 150px 1fr auto;
  align-items: center;
  gap: 26px;
}

.brand { width: 108px; }

.brand img { width: 100%; height: auto; }

.desktop-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(28px, 4vw, 50px);
}

.desktop-nav a,
.nav-contact,
.language-trigger {
  position: relative;
  color: rgba(255, 255, 255, .9);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .01em;
}

.desktop-nav a::after,
.nav-contact::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  background: var(--cyan);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}

.desktop-nav a:hover::after,
.nav-contact:hover::after { transform: scaleX(1); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.page-directory { position: relative; }

.page-directory-trigger {
  display: inline-flex;
  min-height: 36px;
  padding: 0 10px;
  align-items: center;
  gap: 7px;
  border: 1px solid rgba(255, 255, 255, .24);
  color: rgba(255, 255, 255, .9);
  background: rgba(7, 11, 24, .18);
  font-size: 9px;
  cursor: pointer;
  transition: border-color .2s ease, background-color .2s ease;
}

.page-directory-trigger > span:last-child {
  color: var(--cyan);
  font-size: 14px;
  transition: transform .2s ease;
}

.page-directory-trigger:hover,
.page-directory-trigger[aria-expanded="true"] { border-color: rgba(255, 255, 255, .7); background: rgba(7, 11, 24, .76); }
.page-directory-trigger[aria-expanded="true"] > span:last-child { transform: rotate(45deg); }

.page-directory-menu {
  position: fixed;
  top: calc(var(--header-height) + 8px);
  left: 50%;
  width: min(720px, calc(100% - 32px));
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, .16);
  color: var(--white);
  background: rgba(7, 16, 31, .98);
  box-shadow: 0 26px 80px rgba(0, 0, 0, .5);
  transform: translateX(-50%);
  backdrop-filter: blur(18px);
}

.page-directory-menu header { display: flex; padding-bottom: 18px; align-items: end; justify-content: space-between; gap: 24px; border-bottom: 1px solid rgba(255, 255, 255, .14); }
.page-directory-menu header p { color: var(--cyan); font-family: var(--font-mono); font-size: 8px; letter-spacing: .13em; }
.page-directory-menu header strong { font-size: 18px; font-weight: 400; letter-spacing: -.03em; }
.page-directory-grid { display: grid; padding-top: 18px; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.page-directory-grid section { padding: 0 14px; border-left: 1px solid rgba(255, 255, 255, .12); }
.page-directory-grid section:first-child { padding-left: 0; border-left: 0; }
.page-directory-grid section > p { margin-bottom: 10px; color: rgba(255, 255, 255, .42); font-family: var(--font-mono); font-size: 8px; letter-spacing: .08em; text-transform: uppercase; }
.page-directory-grid a { display: flex; min-height: 31px; align-items: center; color: rgba(255, 255, 255, .78); font-size: 11px; transition: color .2s ease, transform .2s ease; }
.page-directory-grid a::after { margin-left: auto; color: var(--cyan); content: "↗"; opacity: 0; transform: translate(-5px, 5px); transition: opacity .2s ease, transform .2s ease; }
.page-directory-grid a:hover { color: var(--white); transform: translateX(3px); }
.page-directory-grid a:hover::after { opacity: 1; transform: translate(0); }

.language-switcher { position: relative; }

.language-trigger {
  padding: 8px 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.language-trigger > span:last-child { color: rgba(255, 255, 255, .44); }

.language-menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 174px;
  padding: 7px;
  border: 1px solid rgba(255, 255, 255, .16);
  background: var(--navy);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .35);
}

.language-option {
  display: flex;
  width: 100%;
  min-height: 42px;
  padding: 0 11px;
  align-items: center;
  justify-content: space-between;
  border: 0;
  color: rgba(255, 255, 255, .7);
  background: transparent;
  cursor: pointer;
}

.language-option small { color: var(--cyan); font-family: var(--font-mono); font-size: 9px; }
.language-option:hover,
.language-option[aria-checked="true"] { color: var(--white); background: rgba(255, 255, 255, .08); }

.menu-toggle {
  display: none;
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid rgba(255, 255, 255, .34);
  color: var(--white);
  background: transparent;
}

.mobile-nav {
  position: fixed;
  inset: var(--header-height) 0 0;
  z-index: 999;
  padding: 32px 24px;
  color: var(--white);
  background: var(--navy);
}

.mobile-nav { overflow-y: auto; }

.mobile-nav > a {
  display: grid;
  min-height: 68px;
  border-bottom: 1px solid var(--line-dark);
  grid-template-columns: 42px 1fr;
  align-items: center;
}

.mobile-nav > a > span { color: var(--cyan); font-family: var(--font-mono); font-size: 10px; }
.mobile-nav > a > strong { font-size: 26px; font-weight: 400; }

.mobile-page-directory { margin: 30px 0 24px; padding: 20px; border: 1px solid rgba(255, 255, 255, .16); background: rgba(255, 255, 255, .035); }
.mobile-page-directory-title { display: flex; margin-bottom: 16px; align-items: end; justify-content: space-between; gap: 16px; }
.mobile-page-directory-title span { color: var(--cyan); font-family: var(--font-mono); font-size: 8px; letter-spacing: .12em; }
.mobile-page-directory-title strong { font-size: 17px; font-weight: 400; }
.mobile-page-directory-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: rgba(255, 255, 255, .1); }
.mobile-page-directory-grid a { min-height: 44px; padding: 0 12px; color: rgba(255, 255, 255, .78); background: var(--navy); font-size: 11px; line-height: 1.25; }

.cin-hero {
  position: relative;
  min-height: 610px;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
}

.cin-hero-background,
.cin-hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.cin-hero-background { object-fit: cover; object-position: center 48%; }
.cin-hero-overlay { background: rgba(3, 8, 18, .34); }

.cin-hero-carousel,
.cin-hero-track,
.cin-hero-slide { min-height: 610px; }

.cin-hero-carousel { position: relative; z-index: 2; }

.cin-hero-track {
  display: flex;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}

.cin-hero-track::-webkit-scrollbar { display: none; }

.cin-hero-slide {
  position: relative;
  width: 100%;
  min-width: 100%;
  flex: 0 0 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.cin-hero-content {
  position: relative;
  min-height: 610px;
  padding-top: 96px;
  padding-bottom: 148px;
}

.cin-hero-copy { max-width: 460px; }

.cin-hero-copy .cin-kicker { color: rgba(255, 255, 255, .68); }

.cin-hero-copy h1,
.cin-hero-copy h2 {
  margin-top: 10px;
  font-size: clamp(68px, 6.8vw, 96px);
  font-weight: 700;
  letter-spacing: -.065em;
  line-height: .88;
}

.cin-hero-product-name {
  margin-top: 15px;
  font-size: clamp(18px, 1.8vw, 24px);
  font-weight: 600;
  letter-spacing: -.03em;
}

.cin-hero-tagline {
  max-width: 330px;
  color: rgba(255, 255, 255, .96);
  font-size: clamp(19px, 1.8vw, 24px);
  font-weight: 400;
  letter-spacing: -.03em;
  line-height: 1.05;
}

.cin-hero-actions { display: flex; margin-top: 20px; align-items: center; gap: 12px; }

.cin-hero-actions a,
.cin-hero-actions button {
  display: inline-flex;
  min-height: 38px;
  padding: 0 15px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, .45);
  color: var(--white);
  background: rgba(7, 11, 24, .24);
  font-size: 10px;
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.cin-hero-actions a { border-color: var(--cyan); background: var(--cyan); color: var(--navy); font-weight: 700; }
.cin-hero-actions a:hover { background: var(--white); border-color: var(--white); }
.cin-hero-actions button:hover { border-color: var(--white); background: rgba(255, 255, 255, .1); }

.cin-hero-chip {
  position: absolute;
  top: 234px;
  left: 31.4%;
  width: 180px;
  height: 158px;
  transform: rotate(4deg);
  filter: drop-shadow(0 26px 24px rgba(0, 0, 0, .42));
}

.cin-hero-chip img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform: none;
}

.cin-hero-future-product {
  position: absolute;
  top: 132px;
  right: 1.5%;
  width: clamp(330px, 34vw, 430px);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .34);
  border-radius: 28px;
  background: #f6f7f9;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .32);
  transform: rotate(-1deg);
}

.cin-hero-future-product img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: contain;
}

.cin-hero-future-product figcaption {
  position: absolute;
  right: 14px;
  bottom: 14px;
  left: 14px;
  display: grid;
  min-height: 54px;
  padding: 10px 14px;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 12px;
  color: var(--white);
  background: rgba(7, 11, 24, .8);
  backdrop-filter: blur(10px);
}

.cin-hero-future-product figcaption span { color: rgba(255, 255, 255, .44); font-family: var(--font-mono); font-size: 9px; letter-spacing: .1em; }
.cin-hero-future-product figcaption strong { font-size: 17px; font-weight: 500; letter-spacing: -.035em; }
.cin-hero-future-product figcaption small { color: var(--cyan); font-family: var(--font-mono); font-size: 7px; letter-spacing: .12em; }

.cin-hero-carousel-controls {
  position: absolute;
  right: 0;
  bottom: 70px;
  left: 0;
  z-index: 4;
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.cin-hero-product-dots { display: flex; align-items: center; gap: 8px; }
.cin-hero-product-dots button {
  position: relative;
  min-width: 66px;
  height: 32px;
  padding: 0 8px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .24);
  color: rgba(255, 255, 255, .56);
  background: rgba(7, 11, 24, .32);
  font-family: var(--font-mono);
  font-size: 8px;
  cursor: pointer;
}

.cin-hero-product-dots button::after { position: absolute; right: 0; bottom: 0; left: 0; height: 2px; background: var(--cyan); content: ""; transform: scaleX(0); transform-origin: left; }
.cin-hero-product-dots button.is-active { border-color: rgba(255, 255, 255, .72); color: var(--white); background: rgba(7, 11, 24, .72); }
.cin-hero-product-dots button.is-active::after { transform: scaleX(1); }
.cin-hero-carousel.is-autoplaying .cin-hero-product-dots button.is-active::after { animation: hero-progress 5.8s linear both; }
.cin-hero-carousel-actions { display: flex; align-items: center; gap: 7px; }
.cin-hero-carousel-actions > span { margin-right: 4px; color: rgba(255, 255, 255, .62); font-family: var(--font-mono); font-size: 8px; }
.cin-hero-carousel-actions button { display: inline-flex; min-width: 34px; min-height: 32px; padding: 0 9px; align-items: center; justify-content: center; border: 1px solid rgba(255, 255, 255, .26); color: var(--white); background: rgba(7, 11, 24, .5); font-family: var(--font-mono); font-size: 9px; cursor: pointer; }
.cin-hero-carousel-actions button:hover { border-color: var(--white); background: rgba(255, 255, 255, .1); }
.cin-hero-carousel-actions #hero-carousel-autoplay { min-width: 66px; }

@keyframes hero-progress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@media (min-width: 901px) {
  .cin-reference-secondary-actions { display: none; }
}

.cin-proof-rail {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 3;
  display: grid;
  min-height: 58px;
  padding: 0 max(24px, calc((100vw - var(--shell)) / 2));
  grid-template-columns: repeat(4, 1fr);
  align-items: stretch;
  border-top: 1px solid rgba(255, 255, 255, .18);
  background: rgba(3, 8, 18, .88);
}

.cin-proof-rail article {
  display: flex;
  min-width: 0;
  padding: 10px 18px;
  flex-direction: column;
  justify-content: center;
  border-left: 1px solid rgba(255, 255, 255, .16);
}

.cin-proof-rail article:last-child { border-right: 1px solid rgba(255, 255, 255, .16); }
.cin-proof-rail strong { font-size: 11px; font-weight: 500; }
.cin-proof-rail span { margin-top: 4px; color: rgba(255, 255, 255, .56); font-size: 7px; line-height: 1.35; }

.cin-comparison {
  color: var(--white);
  background: #03060c;
}

.cin-comparison-grid {
  display: grid;
  min-height: 270px;
  padding-top: 28px;
  padding-bottom: 24px;
  grid-template-columns: minmax(180px, .8fr) minmax(360px, 1.55fr) minmax(180px, .8fr);
  align-items: center;
  gap: 28px;
}

.cin-compare-side { text-align: center; }
.cin-compare-side > p { color: rgba(255, 255, 255, .58); font-family: var(--font-mono); font-size: 7px; letter-spacing: .12em; }
.cin-compare-side h2 { margin: 9px 0 10px; font-size: clamp(42px, 4vw, 56px); letter-spacing: -.06em; line-height: .9; }
.cin-compare-side > span { display: block; color: rgba(255, 255, 255, .5); font-size: 9px; line-height: 1.55; }
.cin-compare-new h2 { color: var(--white); }
.cin-compare-new > p { color: var(--cyan); }

.cin-compare-center { text-align: center; }
.cin-compare-center h2 { font-size: clamp(30px, 3vw, 42px); font-weight: 600; letter-spacing: -.05em; line-height: .95; }

.cin-waveform {
  position: relative;
  width: min(100%, 360px);
  height: 84px;
  margin: 14px auto 0;
}

.cin-waveform img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: .9;
}

.cin-usecase { padding: 48px 0; overflow: hidden; background: #eef3f7; }
.cin-usecase-card {
  display: grid;
  min-height: 390px;
  padding: 28px;
  grid-template-columns: minmax(300px, .72fr) minmax(500px, 1.28fr);
  align-items: center;
  gap: clamp(34px, 5vw, 72px);
  border: 1px solid #dfe6ed;
  border-radius: 24px;
  background: var(--white);
  box-shadow: 0 20px 60px rgba(7, 16, 31, .08);
}
.cin-usecase-copy { max-width: 360px; padding-left: 12px; }
.cin-usecase-copy h2 { margin-top: 10px; font-size: clamp(34px, 3.5vw, 48px); font-weight: 600; letter-spacing: -.055em; line-height: .98; }
.cin-usecase-copy > p:not(.cin-kicker) { margin-top: 18px; color: var(--ink-soft); font-size: 12px; line-height: 1.6; }
.cin-usecase-points { margin-top: 18px; }
.cin-usecase-points li { display: grid; padding: 8px 0; grid-template-columns: 100px 1fr; align-items: baseline; gap: 12px; border-top: 1px solid #e4e9ef; }
.cin-usecase-points strong { color: var(--ink); font-size: 11px; }
.cin-usecase-points span { color: var(--ink-soft); font-size: 9px; line-height: 1.4; }
.cin-usecase figure { width: 100%; min-width: 0; overflow: hidden; border-radius: 18px; background: #f5f7f9; }
.cin-usecase img { width: 100%; height: auto; object-fit: contain; }

.cin-product { background: var(--white); }

.cin-product-grid {
  display: grid;
  min-height: 430px;
  padding-top: 40px;
  padding-bottom: 34px;
  grid-template-columns: minmax(300px, .72fr) minmax(500px, 1.28fr);
  align-items: center;
  gap: clamp(38px, 6vw, 76px);
}

.cin-product-copy { max-width: 350px; }
.cin-product-copy h2 { margin-top: 10px; font-size: clamp(44px, 4.5vw, 58px); font-weight: 600; letter-spacing: -.065em; line-height: .92; }
.cin-product-subtitle { margin-top: 8px; font-size: 18px; font-weight: 500; letter-spacing: -.035em; }
.cin-product-copy > p:not(.cin-kicker):not(.cin-product-subtitle) { color: var(--ink-soft); font-size: 11px; line-height: 1.55; }

.cin-product-functions { margin-top: 14px; }
.cin-product-functions li { position: relative; padding: 3px 0 3px 16px; color: #263145; font-size: 10px; }
.cin-product-functions li::before { position: absolute; top: 9px; left: 0; width: 7px; height: 1px; background: var(--cyan); content: ""; }

.cin-product-media { min-width: 0; }
.cin-product-media img { width: 100%; height: auto; border-radius: 20px; object-fit: contain; }
.cin-media-card { overflow: visible; border: 0; border-radius: 0; background: transparent; }
.cin-product-media { padding: 0; }
.cin-product-media img { max-height: none; margin-inline: auto; }

.cin-system {
  scroll-margin-top: var(--header-height);
  padding: 34px 0 28px;
  color: var(--white);
  background: var(--navy);
}

.cin-system h2 { text-align: center; font-size: clamp(28px, 3vw, 38px); font-weight: 500; letter-spacing: -.045em; line-height: 1.15; }

.cin-system-steps {
  display: grid;
  margin-top: 24px;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.cin-system-steps li { min-height: 82px; padding: 18px 20px; border-left: 1px solid var(--line-dark); }
.cin-system-steps li:last-child { border-right: 1px solid var(--line-dark); }
.cin-system-steps strong { display: block; font-size: 13px; font-weight: 500; }
.cin-system-steps p { margin-top: 6px; color: rgba(255, 255, 255, .54); font-size: 8px; line-height: 1.45; }

.cin-benefit-band {
  position: relative;
  min-height: clamp(580px, 52vw, 720px);
  overflow: hidden;
  isolation: isolate;
  color: var(--white);
  background: #071326;
}

.cin-benefit-band::after {
  position: absolute;
  z-index: 0;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 11, 25, .98) 0%, rgba(5, 17, 37, .9) 34%, rgba(5, 18, 39, .32) 60%, rgba(4, 11, 25, .04) 100%),
    linear-gradient(180deg, rgba(3, 9, 21, .18), rgba(3, 9, 21, .38));
  content: "";
  pointer-events: none;
}

.cin-benefit-band > img,
.cin-contact > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .16;
  filter: saturate(.8) contrast(1.25);
}

.cin-benefit-band > img {
  object-position: 62% 70%;
  opacity: .96;
  filter: saturate(1.08) contrast(1.08) brightness(1.12);
}

.cin-benefit-band .cin-shell {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: inherit;
  padding-block: clamp(64px, 7vw, 96px);
  grid-template-columns: minmax(340px, 520px);
  align-content: center;
}

.cin-benefit-band article {
  display: grid;
  padding: clamp(24px, 3vw, 34px) 0;
  grid-template-columns: 1fr;
  gap: 10px;
  text-align: left;
  border-top: 1px solid rgba(255, 255, 255, .24);
}

.cin-benefit-band article:last-child { border-bottom: 1px solid rgba(255, 255, 255, .24); }
.cin-benefit-band h2 { font-size: clamp(34px, 3.2vw, 48px); font-weight: 500; letter-spacing: -.04em; line-height: 1; }
.cin-benefit-band p { margin: 0; color: rgba(255, 255, 255, .74); font-size: clamp(13px, 1.1vw, 15px); line-height: 1.55; }

.cin-family {
  scroll-margin-top: var(--header-height);
  padding-top: 28px;
  color: var(--white);
  background: var(--blue);
}

.cin-family-heading { display: flex; align-items: end; justify-content: space-between; gap: 36px; }
.cin-family-heading h2 { margin-top: 5px; font-size: clamp(26px, 2.8vw, 36px); font-weight: 400; letter-spacing: -.045em; }

.cin-family-controls { display: flex; align-items: center; gap: 12px; }
.cin-family-controls button {
  min-height: 30px;
  padding: 0 13px;
  border: 1px solid rgba(255, 255, 255, .3);
  color: var(--white);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 9px;
  cursor: pointer;
}
.cin-family-controls button:disabled { opacity: .28; cursor: default; }
.cin-family-controls span { min-width: 54px; color: rgba(255, 255, 255, .58); text-align: center; font-family: var(--font-mono); font-size: 9px; }

.cin-product-rail {
  display: grid;
  margin-top: 16px;
  padding-bottom: 14px;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--cyan) rgba(255, 255, 255, .12);
}

.lp-product-tab {
  display: grid;
  min-width: 0;
  min-height: 86px;
  padding: 9px;
  grid-template-columns: 72px 1fr;
  align-items: center;
  gap: 15px;
  border: 1px solid rgba(255, 255, 255, .14);
  color: rgba(255, 255, 255, .5);
  background: rgba(7, 16, 31, .22);
  text-align: left;
  cursor: pointer;
  scroll-snap-align: center;
  transition: color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease;
}

.lp-product-tab:hover { border-color: rgba(255, 255, 255, .36); transform: translateY(-2px); }
.lp-product-tab img { width: 72px; height: 62px; object-fit: contain; opacity: .22; filter: grayscale(1); }
.lp-product-tab[data-product="suai"] img { border-radius: 7px; background: var(--white); object-fit: cover; object-position: center; }
.lp-product-tab > span { display: flex; min-width: 0; flex-direction: column; gap: 7px; }
.lp-product-tab strong { color: currentColor; font-size: 18px; font-weight: 400; letter-spacing: -.04em; }
.lp-product-tab small { color: currentColor; font-family: var(--font-mono); font-size: 7px; line-height: 1.35; }
.lp-product-tab.is-active { border-color: var(--white); color: var(--ink); background: var(--white); }
.lp-product-tab.is-active img { opacity: 1; filter: none; }
.lp-product-tab.is-active small { color: #526073; }

.lp-product-panels { margin-right: calc(50% - 50vw); margin-left: calc(50% - 50vw); background: var(--white); }

.cin-evidence {
  display: grid;
  width: min(calc(100% - 64px), var(--shell));
  min-height: 310px;
  margin: 0 auto;
  padding: 32px 0 28px;
  grid-template-columns: minmax(360px, .85fr) minmax(480px, 1.15fr);
  align-items: center;
  gap: clamp(42px, 7vw, 90px);
  color: var(--ink);
}

.cin-evidence-copy h2 { margin-top: 6px; font-size: clamp(32px, 3.2vw, 44px); font-weight: 600; letter-spacing: -.055em; }
.cin-evidence-summary { max-width: 58ch; margin-top: 10px; color: var(--ink-soft); font-size: 11px; line-height: 1.55; }
.cin-evidence-copy ul { margin-top: 14px; border-top: 0; }
.cin-evidence-copy li { display: flex; min-height: 0; padding: 3px 0; align-items: baseline; gap: 8px; border-bottom: 0; }
.cin-evidence-copy li::before { color: var(--cyan); content: "✓"; font-size: 10px; }
.cin-evidence-copy li strong { font-size: 10px; font-weight: 600; }
.cin-evidence-copy li span { color: var(--ink-soft); font-size: 8px; line-height: 1.35; }
.cin-evidence-note { margin-top: 10px; color: #78818f; font-size: 7px; line-height: 1.45; }

.cin-evidence-media { position: relative; display: block; height: auto; padding: 0; }
.cin-evidence-media img { display: block; width: 100%; height: auto; border-radius: 20px; object-fit: contain; }
.cin-evidence-media figcaption {
  position: absolute;
  right: 18px;
  bottom: 16px;
  left: 18px;
  width: fit-content;
  max-width: calc(100% - 36px);
  padding: 8px 11px;
  border-radius: 7px;
  color: rgba(255, 255, 255, .86);
  background: rgba(7, 16, 31, .9);
  font-family: var(--font-mono);
  font-size: 8px;
  line-height: 1.45;
  letter-spacing: .08em;
}

.cin-coming {
  display: grid;
  width: min(calc(100% - 64px), var(--shell));
  min-height: 430px;
  margin: 0 auto;
  padding: 42px 0;
  grid-template-columns: minmax(320px, .8fr) minmax(480px, 1.2fr);
  align-items: center;
  gap: clamp(42px, 7vw, 88px);
  color: var(--ink);
}
.cin-coming-copy > p { color: var(--cyan); font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; }
.cin-coming h2 { margin-top: 18px; font-size: clamp(56px, 6vw, 84px); font-weight: 400; letter-spacing: -.07em; }
.cin-coming-copy > span { display: block; max-width: 460px; margin-top: 16px; color: var(--ink-soft); font-size: 15px; line-height: 1.65; }
.cin-coming-product { position: relative; min-width: 0; padding: 0; }
.cin-coming-product img { display: block; width: 100%; height: auto; aspect-ratio: auto; border-radius: 20px; object-fit: contain; }
.cin-coming-product figcaption { position: absolute; right: 20px; bottom: 20px; padding: 8px 10px; border-radius: 8px; color: rgba(255, 255, 255, .76); background: rgba(7, 11, 24, .78); font-family: var(--font-mono); font-size: 7px; letter-spacing: .1em; backdrop-filter: blur(8px); }

.cin-contact {
  scroll-margin-top: var(--header-height);
  position: relative;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
}

.cin-contact-grid {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 190px;
  grid-template-columns: repeat(2, 1fr);
  align-items: stretch;
  gap: 16px;
}

.cin-contact-grid article { display: flex; margin: 18px 0; padding: 30px clamp(28px, 4vw, 54px); flex-direction: column; align-items: flex-start; justify-content: center; border: 1px solid rgba(255, 255, 255, .22); border-radius: 18px; background: rgba(7, 16, 31, .72); backdrop-filter: blur(8px); }
.cin-contact-grid article + article { border-left: 1px solid rgba(255, 255, 255, .22); }
.cin-contact-grid h2 { font-size: clamp(30px, 3vw, 40px); font-weight: 500; letter-spacing: -.05em; }
.cin-contact-grid p { max-width: 420px; margin-top: 7px; color: rgba(255, 255, 255, .66); font-size: 10px; line-height: 1.45; }
.cin-contact-grid a { display: inline-flex; min-width: 190px; min-height: 36px; margin-top: 18px; padding: 0 18px; align-items: center; justify-content: center; border: 1px solid rgba(255, 255, 255, .58); font-size: 10px; transition: color .2s ease, background-color .2s ease; }
.cin-contact-grid article:first-child a { color: var(--navy); border-color: var(--cyan); background: var(--cyan); }
.cin-contact-grid a:hover { color: var(--navy); background: var(--white); }

.cin-footer { position: relative; z-index: 1; border-top: 1px solid rgba(255, 255, 255, .16); }
.cin-footer .cin-shell { display: grid; min-height: 48px; grid-template-columns: 150px 1fr auto; align-items: center; gap: 24px; }
.cin-footer-brand { width: 98px; }
.cin-footer nav { display: flex; justify-content: center; gap: 32px; }
.cin-footer nav a { color: rgba(255, 255, 255, .58); font-size: 10px; }
.cin-footer-meta { display: flex; align-items: center; gap: 22px; color: rgba(255, 255, 255, .46); font-size: 9px; }

.lp-video-dialog {
  width: min(960px, calc(100% - 32px));
  max-width: none;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .18);
  color: var(--white);
  background: var(--navy);
}

.lp-video-dialog::backdrop { background: rgba(3, 6, 12, .9); }
.lp-video-dialog-shell { padding: 24px; }
.lp-video-dialog header { display: flex; margin-bottom: 18px; align-items: flex-start; justify-content: space-between; gap: 24px; }
.lp-video-dialog header p { color: var(--cyan); font-family: var(--font-mono); font-size: 9px; letter-spacing: .12em; }
.lp-video-dialog header h2 { margin-top: 8px; font-size: 25px; font-weight: 400; }
.lp-video-dialog header button { min-height: 38px; padding: 0 12px; border: 1px solid rgba(255, 255, 255, .3); background: transparent; cursor: pointer; }
.lp-video-dialog video { display: block; width: 100%; background: #000; }
.lp-video-dialog-shell > p { margin-top: 14px; color: rgba(255, 255, 255, .54); font-size: 11px; line-height: 1.6; }

.noscript { padding: 16px; color: var(--white); background: #9c2d2d; text-align: center; }

.reveal,
.js .reveal,
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media (max-width: 1120px) {
  .cin-shell { width: min(calc(100% - 40px), var(--shell)); }
  .header-shell { width: calc(100% - 40px); grid-template-columns: 130px 1fr auto; }
  .desktop-nav { gap: 24px; }
  .header-actions { gap: 13px; }
  .cin-hero-chip { left: 42%; }
  .cin-comparison-grid { grid-template-columns: minmax(160px, .75fr) minmax(330px, 1.35fr) minmax(160px, .75fr); gap: 18px; }
  .cin-usecase-card, .cin-product-grid { grid-template-columns: minmax(280px, .8fr) minmax(420px, 1.2fr); gap: 32px; }
  .lp-product-tab { grid-template-columns: 58px 1fr; }
  .lp-product-tab img { width: 58px; height: 54px; }
  .lp-product-tab strong { font-size: 16px; }
  .cin-evidence { grid-template-columns: .9fr 1.1fr; gap: 38px; }
}

@media (max-width: 860px) {
  :root { --header-height: 64px; }
  .cin-shell { width: min(calc(100% - 32px), var(--shell)); }
  .header-shell { width: calc(100% - 32px); grid-template-columns: 1fr auto; gap: 14px; }
  .desktop-nav, .nav-contact, .page-directory { display: none; }
  .header-actions { gap: 10px; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }

  .cin-hero,
  .cin-hero-carousel,
  .cin-hero-track,
  .cin-hero-slide { min-height: 760px; }
  .cin-hero-background { object-position: 64% center; }
  .cin-hero-overlay { background: rgba(3, 8, 18, .56); }
  .cin-hero-content { min-height: 760px; padding-top: 102px; padding-bottom: 224px; }
  .cin-hero-copy h1, .cin-hero-copy h2 { font-size: clamp(60px, 12vw, 82px); }
  .cin-hero-product-name { font-size: 20px; }
  .cin-hero-tagline { font-size: 23px; }
  .cin-reference-secondary-actions { display: flex; }
  .cin-hero-actions a, .cin-hero-actions button, .language-trigger { min-height: 44px; }
  .cin-hero-chip { top: 390px; right: 7%; left: auto; width: 156px; height: 138px; }
  .cin-hero-future-product { top: 300px; right: 4%; width: min(320px, 48vw); border-radius: 22px; }
  .cin-hero-future-product figcaption { right: 10px; bottom: 10px; left: 10px; min-height: 48px; padding: 8px 10px; }
  .cin-hero-carousel-controls { bottom: 140px; }
  .cin-hero-product-dots button { min-width: 56px; }
  .cin-proof-rail { min-height: 128px; padding: 0 16px; grid-template-columns: repeat(2, 1fr); }
  .cin-proof-rail article { padding: 11px 14px; border-top: 1px solid rgba(255, 255, 255, .12); }
  .cin-proof-rail article:nth-child(odd) { border-left: 0; }
  .cin-proof-rail article:last-child { border-right: 0; }

  .cin-comparison-grid { padding: 44px 0; grid-template-columns: 1fr; gap: 30px; }
  .cin-compare-center { grid-row: 1; }
  .cin-compare-old { grid-row: 2; }
  .cin-compare-new { grid-row: 3; }
  .cin-compare-side { display: grid; grid-template-columns: .8fr 1fr 1.2fr; align-items: center; gap: 14px; text-align: left; }
  .cin-compare-side h2 { margin: 0; font-size: 44px; }

  .cin-usecase { padding: 32px 0; }
  .cin-usecase-card, .cin-product-grid { min-height: 0; grid-template-columns: 1fr; }
  .cin-usecase-card { padding: 20px; gap: 26px; border-radius: 20px; }
  .cin-usecase-copy { max-width: none; padding: 4px; }
  .cin-usecase-copy h2 { font-size: 38px; }
  .cin-product-grid { padding: 44px 0; gap: 28px; }
  .cin-product-copy { max-width: 620px; }
  .cin-product-media { width: 100%; max-width: 720px; margin-inline: auto; }

  .cin-system-steps { grid-template-columns: repeat(2, 1fr); }
  .cin-system-steps li:nth-child(3), .cin-system-steps li:nth-child(4) { border-top: 1px solid var(--line-dark); }
  .cin-benefit-band { min-height: 620px; }
  .cin-benefit-band .cin-shell { min-height: inherit; padding: 56px 0; grid-template-columns: minmax(320px, 480px); }
  .cin-benefit-band article { padding: 25px 0; grid-template-columns: 1fr; gap: 9px; }

  .cin-product-rail { grid-template-columns: repeat(5, minmax(230px, 1fr)); }
  .lp-product-tab { min-height: 96px; grid-template-columns: 66px 1fr; }
  .lp-product-tab img { width: 66px; height: 60px; }
  .cin-evidence { width: min(calc(100% - 32px), var(--shell)); padding: 38px 0; grid-template-columns: 1fr; gap: 26px; }
  .cin-evidence-media { order: -1; height: auto; aspect-ratio: 3 / 2; }
  .cin-evidence-media figcaption { right: 12px; bottom: 12px; left: 12px; max-width: calc(100% - 24px); }
  .cin-coming { width: min(calc(100% - 32px), var(--shell)); padding: 38px 0; grid-template-columns: 1fr; gap: 28px; }
  .cin-coming-product { width: 100%; max-width: 720px; }

  .cin-contact-grid { grid-template-columns: 1fr; }
  .cin-contact-grid article + article { border-top: 1px solid rgba(255, 255, 255, .28); border-left: 0; }
  .cin-footer .cin-shell { padding: 24px 0; grid-template-columns: 1fr; justify-items: center; }
  .cin-footer nav { flex-wrap: wrap; }
}

@media (max-width: 560px) {
  .cin-shell { width: calc(100% - 28px); }
  .brand { width: 112px; }
  .language-trigger { font-size: 10px; }

  .cin-hero,
  .cin-hero-carousel,
  .cin-hero-track,
  .cin-hero-slide { min-height: 800px; }
  .cin-hero-content { min-height: 800px; padding-top: 104px; padding-bottom: 238px; }
  .cin-hero-copy h1, .cin-hero-copy h2 { font-size: 54px; }
  .cin-hero-product-name { margin-top: 15px; font-size: 18px; }
  .cin-hero-tagline { font-size: 23px; }
  .cin-hero-actions { width: min(210px, 62vw); align-items: stretch; flex-direction: column; }
  .cin-hero-chip { top: 446px; right: 4px; width: 136px; height: 122px; }
  .cin-hero-future-product { top: 400px; right: 14px; width: 230px; border-radius: 18px; }
  .cin-hero-future-product figcaption { right: 8px; bottom: 8px; left: 8px; min-height: 42px; grid-template-columns: 20px 1fr; gap: 6px; border-radius: 9px; }
  .cin-hero-future-product figcaption strong { font-size: 14px; }
  .cin-hero-future-product figcaption small { display: none; }
  .cin-hero-carousel-controls { bottom: 142px; align-items: flex-end; }
  .cin-hero-product-dots { gap: 5px; }
  .cin-hero-product-dots button { min-width: 28px; width: 28px; height: 30px; padding: 0; }
  .cin-hero-product-dots button span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .cin-hero-carousel-actions { gap: 4px; }
  .cin-hero-carousel-actions > span { display: none; }
  .cin-hero-carousel-actions button { min-width: 32px; min-height: 30px; padding: 0 7px; }
  .cin-hero-carousel-actions #hero-carousel-autoplay { min-width: 58px; }
  .cin-proof-rail { padding: 0 10px; }
  .cin-proof-rail article { padding: 10px 9px; }
  .cin-proof-rail strong { font-size: 11px; }
  .cin-proof-rail span { font-size: 7px; }

  .cin-comparison-grid { padding: 40px 0; gap: 26px; }
  .cin-compare-center h2 { font-size: 34px; }
  .cin-waveform { height: 78px; }
  .cin-compare-side { grid-template-columns: 1fr; text-align: center; }
  .cin-compare-side h2 { font-size: 42px; }

  .cin-usecase { padding: 24px 0; }
  .cin-usecase-card { padding: 16px; border-radius: 18px; }
  .cin-usecase-copy h2 { font-size: 32px; }
  .cin-usecase-copy > p:not(.cin-kicker) { font-size: 11px; }
  .cin-usecase-points li { grid-template-columns: 88px 1fr; }
  .cin-usecase figure { border-radius: 14px; }

  .cin-product-grid { padding: 36px 0; }
  .cin-product-copy h2 { font-size: 48px; }
  .cin-product-subtitle { font-size: 19px; }
  .cin-media-card img { border-radius: 14px; }

  .cin-system { padding: 38px 0; }
  .cin-system h2 { font-size: 25px; }
  .cin-system-steps { margin-top: 24px; }
  .cin-system-steps li { min-height: 104px; padding: 18px 14px; }
  .cin-system-steps strong { font-size: 13px; }

  .cin-benefit-band { min-height: 760px; }
  .cin-benefit-band::after {
    background:
      linear-gradient(180deg, rgba(3, 9, 21, .02) 0%, rgba(3, 9, 21, .18) 28%, rgba(4, 12, 27, .88) 51%, rgba(4, 12, 27, 1) 68%),
      linear-gradient(90deg, rgba(3, 9, 21, .18), rgba(3, 9, 21, .04));
  }
  .cin-benefit-band > img { bottom: auto; height: 55%; object-position: 66% 72%; opacity: 1; }
  .cin-benefit-band .cin-shell { min-height: inherit; padding: 315px 0 34px; grid-template-columns: 1fr; align-content: end; }
  .cin-benefit-band article { min-height: 0; padding: 18px 0; grid-template-columns: 1fr; gap: 7px; border-right: 0; border-bottom: 0; }
  .cin-benefit-band article:last-child { border-bottom: 1px solid rgba(255, 255, 255, .24); }
  .cin-benefit-band h2 { font-size: 30px; }
  .cin-benefit-band p { max-width: 32ch; font-size: 12px; }

  .cin-family { padding-top: 38px; }
  .cin-family-heading { align-items: flex-start; flex-direction: column; gap: 18px; }
  .cin-family-heading h2 { font-size: 30px; }
  .cin-family-controls { width: 100%; justify-content: flex-end; }
  .cin-product-rail { margin-right: -14px; margin-left: -14px; padding-right: 14px; padding-left: 14px; grid-template-columns: repeat(5, 232px); }

  .cin-evidence { width: calc(100% - 28px); padding: 34px 0; }
  .cin-evidence-copy h2 { font-size: 34px; }
  .cin-evidence-copy li { align-items: flex-start; flex-wrap: wrap; }
  .cin-coming { width: calc(100% - 28px); min-height: 330px; padding: 36px 0; gap: 24px; }
  .cin-coming h2 { font-size: 52px; }
  .cin-coming-copy > span { font-size: 14px; }
  .cin-coming-product { padding: 0; }
  .cin-coming-product figcaption { right: 14px; bottom: 14px; }

  .cin-contact-grid { width: calc(100% - 28px); }
  .cin-contact-grid article { padding: 38px 22px; }
  .cin-contact-grid h2 { font-size: 34px; }
  .cin-contact-grid a { width: 100%; min-height: 42px; }
  .cin-footer nav { gap: 16px; }
  .cin-footer-meta { align-items: center; flex-direction: column; gap: 8px; }
  .lp-video-dialog-shell { padding: 16px; }
  .lp-video-dialog header h2 { font-size: 19px; }
}