:root {
  --ink: #172029;
  --muted: #5b6770;
  --paper: #f7f8f6;
  --white: #ffffff;
  --line: #dfe4e3;
  --blue: #0a506a;
  --blue-deep: #07384f;
  --blue-light: #0f6e91;
  --teal: #26a69a;
  --teal-soft: #d9f1ed;
  --red: #9b1830;
  --radius: 22px;
  --shadow: 0 24px 70px rgba(15, 38, 51, .09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.shell { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 15px;
  border-radius: 8px;
  background: var(--white);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto;
  background: rgba(247, 248, 246, .89);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px);
  transition: border-color .25s, box-shadow .25s;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 8px 30px rgba(15, 38, 51, .04); }
.header-inner { min-height: 80px; display: flex; align-items: center; gap: 30px; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand-logo { width: 142px; height: auto; }
.site-nav { display: flex; align-items: center; gap: 25px; margin-left: auto; }
.site-nav a, .language { font-size: 13px; font-weight: 650; }
.site-nav a { position: relative; color: #35414a; }
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -8px;
  height: 2px;
  background: var(--teal);
  transition: right .25s;
}
.site-nav a:hover::after, .site-nav a:focus-visible::after { right: 0; }
.site-nav .nav-product {
  padding: 7px 10px;
  border: 1px solid rgba(15, 110, 145, .32);
  border-radius: 7px;
  color: var(--blue);
  background: rgba(255, 255, 255, .5);
}
.site-nav .nav-product::after { display: none; }
.site-nav .nav-product:hover, .site-nav .nav-product:focus-visible { border-color: var(--blue); background: var(--white); }
.language { display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.language span { color: var(--ink); }
.language a { color: var(--muted); }
.language a:hover { color: var(--teal); }
.language i { width: 1px; height: 16px; background: var(--line); }
.menu-toggle { display: none; }

.hero {
  position: relative;
  min-height: 780px;
  padding: 176px 0 108px;
  overflow: hidden;
  background:
    radial-gradient(circle at 86% 30%, rgba(38, 166, 154, .11), transparent 28%),
    linear-gradient(140deg, #fbfcfb 0%, #f4f7f5 100%);
}
.hero-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .45;
  background-image:
    linear-gradient(rgba(12, 63, 96, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12, 63, 96, .06) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to right, transparent 5%, #000 55%, transparent);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 70px; }
.hero-copy { position: relative; z-index: 2; }
.kicker {
  margin: 0 0 20px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(48px, 6.1vw, 82px);
  font-weight: 660;
  letter-spacing: -.055em;
  line-height: .98;
}
.product-hero h1 { font-size: clamp(44px, 5.5vw, 74px); }
.hero-lead {
  max-width: 735px;
  margin: 34px 0 0;
  color: #46545e;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.55;
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.button {
  min-height: 54px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 750;
  transition: transform .2s, background .2s, color .2s, box-shadow .2s;
}
.button:hover { transform: translateY(-2px); }
.button:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid rgba(38, 166, 154, .4); outline-offset: 3px; }
.button-primary { color: var(--white); background: var(--blue); box-shadow: 0 12px 24px rgba(12, 63, 96, .16); }
.button-primary:hover { background: var(--blue-deep); box-shadow: 0 16px 30px rgba(12, 63, 96, .23); }
.button-primary b { font-size: 18px; font-weight: 400; }
.button-secondary { color: var(--blue); border-color: #b9c7cc; background: rgba(255, 255, 255, .45); }
.button-secondary:hover { border-color: var(--blue); background: var(--white); }
.hero-note { max-width: 610px; margin: 38px 0 0; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); display: flex; gap: 12px; font-size: 14px; }
.hero-note span { width: 7px; height: 7px; margin-top: 8px; border-radius: 50%; background: var(--teal); flex: 0 0 auto; }

.system-map {
  position: relative;
  isolation: isolate;
  width: min(100%, 460px);
  aspect-ratio: 1;
  margin-inline: auto;
}
.map-ring { position: absolute; border: 1px solid rgba(12, 63, 96, .15); border-radius: 50%; inset: 12%; }
.ring-two { inset: 28%; border-style: dashed; animation: rotate 30s linear infinite; }
.map-core {
  position: absolute;
  z-index: 2;
  inset: 50% auto auto 50%;
  width: 126px;
  height: 126px;
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  display: grid;
  place-content: center;
  text-align: center;
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 25px 60px rgba(8, 44, 68, .25);
}
.map-core b { font-size: 40px; line-height: 1; }
.map-core small { margin-top: 6px; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.map-node {
  position: absolute;
  z-index: 3;
  min-width: 90px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-align: center;
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 8px 30px rgba(15, 38, 51, .06);
  font-size: 12px;
  font-weight: 700;
}
.map-top { top: 4%; left: 50%; transform: translateX(-50%); }
.map-bottom { bottom: 4%; left: 50%; transform: translateX(-50%); }
.map-left { left: 0; top: 50%; transform: translateY(-50%); }
.map-right { right: 0; top: 50%; transform: translateY(-50%); }
@keyframes rotate { to { transform: rotate(360deg); } }

.section { padding: 120px 0; background: var(--white); }
.section-tint { background: var(--paper); }
.section-blue { background: var(--blue-deep); color: var(--white); }
.section-heading { max-width: 780px; margin-bottom: 52px; }
.section-heading h2, .contact-copy h2, .start-panel h2 {
  margin: 0;
  font-size: clamp(36px, 4.5vw, 58px);
  line-height: 1.08;
  letter-spacing: -.045em;
  font-weight: 650;
}
.section-lead { margin: 24px 0 0; color: var(--muted); font-size: 18px; line-height: 1.7; }
.section-heading.light .section-lead { color: #b8c9d2; }
.cards { display: grid; }
.solutions-grid { grid-template-columns: repeat(2, 1fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.solution-card { min-height: 265px; padding: 32px; background: var(--white); }
.solution-card:nth-child(odd) { border-right: 1px solid var(--line); }
.solution-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
.card-number, .format-code { color: var(--teal); font: 700 12px/1 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .12em; }
.solution-card h3, .format-card h3, .channel-card h3, .project-card h3, .exchange-card h3 { margin: 54px 0 12px; font-size: 25px; letter-spacing: -.025em; line-height: 1.2; }
.solution-card p, .format-card p, .project-card p { margin: 0; color: var(--muted); }
.statement { max-width: 970px; margin: 68px 0 0; padding-left: 28px; border-left: 3px solid var(--teal); font-size: clamp(25px, 3vw, 38px); line-height: 1.3; letter-spacing: -.03em; }
.product-banner {
  margin-top: 72px;
  padding: 34px;
  border-radius: var(--radius);
  color: var(--white);
  background: linear-gradient(120deg, var(--blue-light), var(--blue));
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  box-shadow: var(--shadow);
  transition: transform .25s;
}
.product-banner:hover { transform: translateY(-4px); }
.product-banner span { display: grid; gap: 8px; max-width: 720px; }
.product-banner small { color: #8dd5cc; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.product-banner strong { font-size: clamp(28px, 3.2vw, 42px); line-height: 1.1; letter-spacing: -.03em; }
.product-banner em { color: #c7d4da; font-style: normal; }
.product-banner > b { white-space: nowrap; color: #d9f1ed; font-size: 14px; }
.product-banner > b i { margin-left: 8px; font-style: normal; }

.split-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 110px; align-items: start; }
.sticky-heading { position: sticky; top: 120px; margin-bottom: 0; }
.feature-stack .check-list { margin: 0; }
.check-list { list-style: none; padding: 0; }
.check-list li { padding: 19px 0; border-bottom: 1px solid var(--line); display: flex; align-items: flex-start; gap: 15px; }
.check-list li:first-child { border-top: 1px solid var(--line); }
.check-list li span { width: 23px; height: 23px; border-radius: 50%; display: inline-grid; place-items: center; color: var(--teal); background: var(--teal-soft); flex: 0 0 auto; font-weight: 800; }

.format-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.format-card { min-height: 340px; padding: 36px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.format-card h3 { margin-top: 110px; font-size: 34px; }
.dark-card { color: var(--white); background: var(--blue-deep); border-color: var(--blue-deep); }
.dark-card p { color: #b8c9d2; }
.pill { width: max-content; padding: 7px 11px; border-radius: 999px; color: #116a64; background: var(--teal-soft); font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.network-diagram { margin-top: 46px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); display: grid; grid-template-columns: 1fr auto 1.5fr auto 1fr; align-items: center; gap: 24px; text-align: center; }
.network-diagram span, .network-diagram strong { padding: 14px 18px; border-radius: 10px; background: var(--paper); }
.network-diagram strong { color: var(--white); background: var(--blue); }
.network-diagram i { color: var(--teal); font-style: normal; font-size: 24px; }

.steps-grid { list-style: none; padding: 0; margin: 70px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.2); }
.steps-grid li { min-height: 220px; padding: 26px 25px 20px 0; border-right: 1px solid rgba(255,255,255,.16); }
.steps-grid li + li { padding-left: 25px; }
.steps-grid li:last-child { border-right: 0; }
.steps-grid span { color: #79cbc2; font: 700 12px/1 ui-monospace, SFMono-Regular, Consolas, monospace; }
.steps-grid p { margin: 72px 0 0; font-size: 18px; line-height: 1.45; }

.project-card { position: relative; min-height: 320px; padding: 40px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: grid; grid-template-columns: 1fr auto; background: var(--white); }
.project-card > div:first-child { max-width: 710px; position: relative; z-index: 1; }
.project-card h3 { margin-top: 56px; font-size: clamp(30px, 4vw, 46px); }
.project-mark { align-self: center; color: rgba(12, 63, 96, .07); font-size: 170px; font-weight: 800; line-height: 1; }
.ordis-note { margin-top: 24px; padding: 26px 30px; border: 1px solid var(--line); border-radius: 16px; display: flex; gap: 20px; background: #fbfcfb; }
.ordis-note > span { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; color: var(--white); background: var(--blue); flex: 0 0 auto; font-weight: 800; }
.ordis-note h3 { margin: 0 0 5px; font-size: 18px; }
.ordis-note p { margin: 0; color: var(--muted); }

.contact-section { padding: 120px 0; color: var(--white); background: #101d26; }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: start; }
.contact-copy { position: sticky; top: 120px; }
.contact-copy .section-lead { color: #aebcc5; }
.email-link { display: inline-block; margin-top: 40px; color: #8dd5cc; font-size: 19px; border-bottom: 1px solid rgba(141, 213, 204, .4); }
.form-card { padding: 38px; border: 1px solid rgba(255,255,255,.11); border-radius: var(--radius); background: rgba(255,255,255,.055); }
.form-card h3 { margin: 0 0 28px; font-size: 25px; }
.form-card form { display: grid; gap: 20px; }
.form-card label { display: grid; gap: 7px; color: #d8e0e4; font-size: 13px; font-weight: 650; }
.form-card input, .form-card textarea {
  width: 100%;
  border: 1px solid #42515a;
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--white);
  background: #182831;
  outline: 0;
  resize: vertical;
  transition: border-color .2s, box-shadow .2s;
}
.form-card input:focus, .form-card textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(38,166,154,.13); }
.form-card .button { width: 100%; margin-top: 5px; border: 0; }
.form-privacy { margin: 0; color: #8fa0aa; font-size: 11px; }
.field-error { display: none; color: #ff9cae; font-size: 11px; }
.form-card label.invalid .field-error { display: block; }
.form-card label.invalid input, .form-card label.invalid textarea { border-color: #e46d82; }
.form-notice { margin: 0 0 22px; padding: 13px 15px; border-radius: 8px; font-size: 13px; }
.form-notice.success { color: #d9f1ed; background: rgba(38,166,154,.16); }
.form-notice.error { color: #ffd5dd; background: rgba(155,24,48,.25); }
.hp-field { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }

.site-footer { padding: 62px 0 25px; color: #cad3d8; background: #0b151c; }
.site-footer .brand-logo { width: 132px; }
.brand--reverse .brand-logo { filter: grayscale(1) brightness(0) invert(1); }
.footer-top { display: flex; justify-content: space-between; gap: 50px; }
.footer-top p { max-width: 370px; margin: 20px 0 0; color: #7f919c; }
.footer-links { display: grid; align-content: start; gap: 12px; text-align: right; font-size: 14px; }
.footer-links a:hover { color: #8dd5cc; }
.footer-bottom { margin-top: 50px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.09); display: flex; justify-content: space-between; color: #687b86; font-size: 12px; }

.core-diagram { position: relative; aspect-ratio: 1; max-width: 470px; margin-inline: auto; }
.core-diagram::before, .core-diagram::after { content: ""; position: absolute; background: rgba(12, 63, 96, .16); z-index: 0; }
.core-diagram::before { width: 1px; height: 70%; left: 50%; top: 15%; }
.core-diagram::after { height: 1px; width: 70%; top: 50%; left: 15%; }
.core-diagram strong { position: absolute; z-index: 2; inset: 50% auto auto 50%; transform: translate(-50%, -50%); width: 145px; height: 145px; border-radius: 28px; display: grid; place-content: center; text-align: center; color: var(--white); background: var(--blue); box-shadow: 0 22px 55px rgba(8,44,68,.25); line-height: 1.2; }
.core-node { position: absolute; z-index: 2; width: 136px; padding: 12px; border: 1px solid var(--line); border-radius: 12px; text-align: center; background: var(--white); box-shadow: 0 9px 30px rgba(15,38,51,.07); font-size: 12px; font-weight: 700; }
.core-top { top: 3%; left: 50%; transform: translateX(-50%); }
.core-bottom { bottom: 3%; left: 50%; transform: translateX(-50%); }
.core-left { left: 0; top: 50%; transform: translateY(-50%); }
.core-right { right: 0; top: 50%; transform: translateY(-50%); }
.flow { position: absolute; z-index: 1; inset: 50% auto auto 50%; color: var(--teal); font-size: 28px; font-style: normal; transform: translate(-50%, -50%); }
.flow-v { line-height: 350px; }
.flow-h { letter-spacing: 260px; white-space: nowrap; }
.channel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.channel-card { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.channel-card > span, .exchange-card > span { color: var(--teal); font: 800 12px/1 ui-monospace, Consolas, monospace; }
.channel-card h3 { margin: 48px 0 25px; }
.channel-card .check-list li { padding: 13px 0; font-size: 14px; }
.notice-line { margin: 30px 0 0; padding: 18px 22px; border-left: 3px solid var(--teal); color: var(--muted); background: var(--paper); }
.exchange-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.exchange-card { padding: 34px; border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius); background: rgba(255,255,255,.055); }
.exchange-card h3 { margin: 45px 0 20px; }
.exchange-card .check-list li { border-color: rgba(255,255,255,.13); }
.exchange-card .check-list li span { color: #8dd5cc; background: rgba(38,166,154,.14); }
.pilot-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
.pilot-grid .project-card { height: 100%; }
.start-panel { padding: 38px; border-radius: var(--radius); color: var(--white); background: var(--blue-deep); }
.start-panel h2 { font-size: 36px; }
.start-panel ol { list-style: none; padding: 0; margin: 32px 0 0; }
.start-panel li { padding: 14px 0; border-top: 1px solid rgba(255,255,255,.13); display: grid; grid-template-columns: 42px 1fr; gap: 8px; }
.start-panel li span { color: #79cbc2; font: 700 12px/1.6 ui-monospace, Consolas, monospace; }
.legal-page { min-height: 75vh; padding: 180px 0 110px; background: var(--white); }
.legal-inner { max-width: 850px; }
.legal-inner h1 { font-size: clamp(44px, 6vw, 70px); }
.legal-inner .check-list { margin: 55px 0 40px; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 980px) {
  .shell { width: min(100% - 36px, 760px); }
  .header-inner { min-height: 72px; }
  .site-nav {
    position: fixed;
    inset: 72px 0 0;
    padding: 38px 24px;
    background: var(--paper);
    display: none;
    align-items: flex-start;
    flex-direction: column;
    gap: 25px;
  }
  .menu-open .site-nav { display: flex; }
  .site-nav a { font-size: 22px; }
  .language { margin-left: auto; }
  .menu-toggle { order: 3; width: 42px; height: 42px; margin-left: 4px; padding: 10px; border: 0; background: transparent; display: grid; align-content: center; gap: 6px; }
  .menu-toggle span { height: 2px; width: 22px; background: var(--ink); transition: transform .2s; }
  .menu-open .menu-toggle span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-open .menu-toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .hero { min-height: auto; padding: 145px 0 90px; }
  .hero-grid { grid-template-columns: 1fr; gap: 60px; }
  .system-map, .core-diagram { width: min(100%, 440px); }
  .split-layout, .contact-grid { grid-template-columns: 1fr; gap: 55px; }
  .sticky-heading, .contact-copy { position: static; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid li:nth-child(2) { border-right: 0; }
  .channel-grid { grid-template-columns: 1fr; }
  .pilot-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .shell { width: min(100% - 28px, 560px); }
  .brand-logo { width: 128px; }
  .language { gap: 5px; }
  .language span, .language a { font-size: 0; }
  .language span::after { content: attr(aria-current); font-size: 0; }
  .language span { font-size: 11px; }
  .language a { font-size: 11px; }
  .header-inner { gap: 10px; }
  .hero { padding-top: 125px; }
  h1, .product-hero h1 { font-size: clamp(42px, 13.5vw, 62px); }
  .hero-lead { font-size: 17px; }
  .actions { flex-direction: column; }
  .actions .button { width: 100%; }
  .system-map, .core-diagram { transform: scale(.92); }
  .section, .contact-section { padding: 82px 0; }
  .section-heading { margin-bottom: 36px; }
  .section-heading h2, .contact-copy h2, .start-panel h2 { font-size: 36px; }
  .solutions-grid, .format-grid, .exchange-grid { grid-template-columns: 1fr; }
  .solution-card:nth-child(odd) { border-right: 0; }
  .solution-card { border-bottom: 1px solid var(--line); min-height: 230px; }
  .solution-card:last-child { border-bottom: 0; }
  .product-banner { padding: 28px; align-items: flex-start; flex-direction: column; }
  .network-diagram { grid-template-columns: 1fr; gap: 10px; }
  .network-diagram i { transform: rotate(90deg); }
  .steps-grid { grid-template-columns: 1fr; }
  .steps-grid li, .steps-grid li + li { min-height: auto; padding: 22px 0 30px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.15); }
  .steps-grid p { margin-top: 28px; }
  .project-card { padding: 28px; grid-template-columns: 1fr; }
  .project-mark { display: none; }
  .form-card, .start-panel, .exchange-card, .channel-card { padding: 26px; }
  .footer-top { flex-direction: column; }
  .footer-links { text-align: left; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 6px; }
  .core-node { width: 112px; padding: 10px 6px; font-size: 10px; }
  .core-diagram strong { width: 122px; height: 122px; font-size: 14px; }
  .flow-h { letter-spacing: 185px; }
  .flow-v { line-height: 270px; }
}