:root {
  --navy: #173c67;
  --blue: #2467cf;
  --ink: #1c3554;
  --muted: #627a95;
  --line: #dce8f5;
  --pale: #f1f7ff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; background: white; color: var(--ink); font: 15px/1.75 "Segoe UI", Arial, sans-serif; }
a { color: var(--blue); }
button { font: inherit; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.2; }
h2 { font-size: clamp(27px, 3vw, 39px); font-weight: 650; letter-spacing: -1px; }
h3 { font-size: 19px; font-weight: 650; }
p + p { margin-top: 14px; }
.container { width: calc(100% - 64px); max-width: 1160px; margin: 0 auto; }
.skip-link { position: absolute; top: -80px; left: 20px; z-index: 100; padding: 10px; background: white; }
.skip-link:focus { top: 10px; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid #5597ec; outline-offset: 4px; }
.sync-header { position: sticky; top: 0; z-index: 10; border-bottom: 1px solid var(--line); background: #ffffffef; backdrop-filter: blur(14px); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 82px; }
.sync-brand { display: flex; gap: 12px; align-items: center; text-decoration: none; color: var(--navy); font-size: 15px; font-weight: 700; line-height: 1.3; }
.sync-brand small { display: block; margin-top: 5px; color: var(--muted); font-size: 11px; font-weight: 400; }
.sync-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: #deedff; color: #245fae; font-weight: 800; letter-spacing: -1px; }
.sync-nav { display: flex; align-items: center; gap: 26px; font-size: 12px; }
.sync-nav a { text-decoration: none; color: var(--navy); }
.sync-nav .nav-cta { border: 1px solid #bcd4f1; padding: 9px 15px; border-radius: 8px; }
.menu-button { display: none; }
.independent-notice { border-radius: 0; border: 0; border-bottom: 1px solid var(--line); background: #f3f8ff; color: #536e90; text-align: center; font-size: 11px; padding: 10px 20px; }
.independent-notice strong, .independent-notice a { color: #325b8f; }
.sync-hero { overflow: hidden; background: radial-gradient(ellipse at 80% 20%, #d6e9ff 0, transparent 55%), linear-gradient(120deg, #f7fbff, #ecf5ff); }
.hero-layout { display: grid; grid-template-columns: 1.05fr 1fr; gap: 65px; align-items: center; padding-top: 74px; padding-bottom: 78px; }
.eyebrow { color: #4675ac; font-size: 10px; letter-spacing: 1.8px; font-weight: 700; margin-bottom: 20px; }
h1 { font-size: clamp(36px, 4.1vw, 55px); font-weight: 650; letter-spacing: -2px; }
h1 span { color: var(--blue); }
.hero-copy { margin-top: 26px; max-width: 530px; color: #587292; font-size: 16px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
.button { display: inline-flex; align-items: center; padding: 12px 17px; border-radius: 8px; text-decoration: none; font-size: 12px; font-weight: 600; transition: background .15s; }
.primary { background: var(--blue); color: white; box-shadow: 0 5px 16px #2467cf20; }
.primary:hover { background: #1855b2; }
.secondary { border: 1px solid #c7d9ed; color: #356295; }
.secondary:hover { background: white; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px 18px; color: #6482a4; font-size: 10px; margin-top: 29px; }
.exchange-visual { position: relative; padding: 23px; border: 1px solid #c6dcf5; border-radius: 20px; background: #ffffffbd; box-shadow: 0 24px 65px #375e9420; }
.visual-heading { display: flex; align-items: center; gap: 7px; font-size: 9px; font-weight: 650; letter-spacing: 1px; color: #567aa4; padding-bottom: 23px; }
.visual-heading > span:last-child { margin-left: auto; padding: 2px 7px; background: #edf5ff; border-radius: 4px; font-size: 8px; }
.blue-dot { width: 6px; height: 6px; border-radius: 50%; background: #508adb; }
.visual-node { display: flex; align-items: center; gap: 12px; padding: 16px; border: 1px solid var(--line); border-radius: 10px; background: white; }
.visual-node strong, .sync-engine strong { display: block; font-size: 13px; }
.visual-node small, .sync-engine small { display: block; color: #7890ac; font-size: 10px; }
.node-icon { font-size: 29px; color: #568cd0; }
.node-tag { margin-left: auto; font-size: 9px; color: #7797bc; }
.flow-line { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 10px; color: #6297da; }
.flow-line span { font-size: 23px; line-height: 1.2; }
.flow-line small { font-size: 9px; color: #7591b0; }
.sync-engine { display: flex; align-items: center; gap: 17px; padding: 19px; border: 1px solid #94bced; background: linear-gradient(110deg, #dfedff, #edf6ff); border-radius: 12px; }
.sync-engine strong { font-size: 15px; color: #215ca6; }
.engine-symbol { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 11px; background: #2b6bc6; color: white; font-size: 29px; }
.visual-destinations { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.visual-destinations > div { padding: 15px; border: 1px solid var(--line); border-radius: 10px; background: white; }
.visual-destinations span { color: #548bd2; font-size: 22px; }
.visual-destinations strong, .visual-destinations small { display: block; }
.visual-destinations strong { font-size: 12px; margin-top: 4px; }
.visual-destinations small { font-size: 9px; color: #7e95ae; }
.diagram-caption { margin-top: 16px; color: #7a91ab; font-size: 9px; }
.principles { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.principles-row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; padding-top: 20px; padding-bottom: 20px; font-size: 12px; color: #64809f; }
.principles b { font-size: 10px; color: #5891d9; margin-right: 9px; }
.section { padding: 76px 0; }
.section-heading { display: flex; justify-content: space-between; gap: 55px; align-items: flex-end; margin-bottom: 34px; }
.section-heading > p { color: var(--muted); max-width: 350px; font-size: 13px; }
.scenario-buttons { display: flex; gap: 9px; flex-wrap: wrap; margin-bottom: 18px; }
.scenario-buttons button { padding: 10px 19px; border: 1px solid var(--line); background: white; color: #5f7e9f; border-radius: 8px; cursor: pointer; font-size: 12px; }
.scenario-buttons button[aria-pressed="true"] { border-color: #2467cf; background: #2467cf; color: white; }
.scenario-detail { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; padding: 34px; border: 1px solid #cddff4; border-radius: 14px; background: #f7fbff; }
.scenario-route { display: grid; place-items: center; padding: 24px; border: 1px dashed #a6c7ed; border-radius: 10px; font-size: 20px; line-height: 1.8; text-align: center; color: #356fb7; background: white; }
.scenario-detail p { margin-top: 14px; font-size: 13px; color: var(--muted); }
.scenario-detail .scenario-note { font-size: 12px; color: #507caa; }
.pale { background: var(--pale); }
.capability-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.capability-grid article { background: white; padding: 28px; border: 1px solid var(--line); border-radius: 13px; }
.card-number { display: block; margin-bottom: 30px; font-size: 9px; letter-spacing: 1px; color: #789dc8; }
.capability-grid h3 { font-size: 18px; }
.capability-grid p { margin-top: 14px; color: var(--muted); font-size: 12px; }
.platform-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 75px; }
.platform-layout > div > p:last-child { color: var(--muted); max-width: 340px; margin-top: 25px; font-size: 13px; }
.muted-heading { color: #7b9abe; }
.platform-list article { display: flex; gap: 22px; padding: 25px 0; border-bottom: 1px solid var(--line); }
.platform-list article:first-child { padding-top: 0; }
.platform-list article > span { display: grid; place-items: center; flex: 0 0 47px; height: 47px; border-radius: 10px; color: #3977c0; background: #e9f3ff; font-size: 11px; font-weight: 700; }
.platform-list p { margin-top: 11px; color: var(--muted); font-size: 13px; }
.boundary-section { background: #163e71; color: white; padding: 43px 0; }
.boundary { display: flex; gap: 45px; align-items: center; }
.boundary-symbol { flex-shrink: 0; font-size: 40px; letter-spacing: 4px; color: #a7cfff; }
.boundary h2 { font-size: 24px; letter-spacing: -.5px; }
.boundary p { margin-top: 14px; color: #bfd3ed; font-size: 13px; }
.boundary a { display: inline-block; color: #c6e3ff; font-size: 12px; margin-top: 15px; text-underline-offset: 4px; }
.process-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); list-style: none; padding: 0; margin: 0; gap: 24px; }
.process-list li { border-top: 2px solid #c5dcf8; padding-top: 22px; }
.process-list span { color: #4c85ce; font-size: 12px; }
.process-list h3 { font-size: 18px; margin-top: 18px; }
.process-list p { color: var(--muted); font-size: 12px; margin-top: 12px; }
.scope-note { padding: 24px 28px; border: 1px solid #cfe0f4; border-radius: 12px; margin-top: 38px; background: #f6faff; }
.scope-note strong { color: #2b609e; }
.scope-note p { color: var(--muted); font-size: 12px; margin-top: 8px; }
.faq-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 65px; }
.faq details { border-bottom: 1px solid #cfdef0; padding: 19px 0; }
.faq details:first-child { padding-top: 0; }
.faq summary { cursor: pointer; font-size: 14px; font-weight: 600; }
.faq p { margin-top: 13px; font-size: 13px; color: var(--muted); }
.contact-panel { display: grid; grid-template-columns: 1.1fr 1fr; gap: 65px; align-items: center; border: 1px solid #c4dcf8; border-radius: 20px; padding: 43px; background: linear-gradient(125deg, #f3f9ff, #e4f0ff); }
.contact-panel > div > p:not(.eyebrow) { color: #5f7e9f; font-size: 13px; margin-top: 22px; max-width: 450px; }
.contact-person { font-weight: 600; }
.contact-links { display: grid; gap: 12px; }
.contact-item { padding: 17px 20px; border: 1px solid #c9ddf4; border-radius: 10px; background: #ffffffbd; min-width: 0; }
.contact-item-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: #7893b1; font-size: 11px; margin-bottom: 9px; }
.contact-reveal { display: inline-flex; align-items: center; gap: 6px; border: 1px solid #c9ddf4; border-radius: 6px; padding: 5px 9px; background: #edf5ff; color: #376cae; font-size: 11px; cursor: pointer; }
.contact-value { display: block; text-decoration: none; overflow-wrap: anywhere; }
.contact-value b, .contact-value em { display: block; }
.contact-value b { font-size: 16px; color: #2a568b; }
.contact-value em { font-size: 11px; color: #7296be; font-style: normal; }
.contact-item:not(.is-revealed) .contact-value { filter: blur(6px); pointer-events: none; user-select: none; }
.sync-footer { border-top: 1px solid var(--line); padding: 30px 0; }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.footer-row > a:not(.sync-brand) { font-size: 11px; text-decoration: none; color: var(--muted); }
@media (max-width: 1000px) {
  .hero-layout { gap: 30px; }
  .sync-nav { gap: 16px; }
  .capability-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .platform-layout, .faq-layout, .contact-panel { gap: 35px; }
}
@media (max-width: 760px) {
  .container { width: calc(100% - 36px); }
  .header-row { min-height: 70px; }
  .menu-button { display: block; border: 1px solid #cbdcf0; background: white; color: var(--navy); padding: 7px 10px; border-radius: 6px; font-size: 12px; }
  .sync-nav { display: none; position: absolute; top: 69px; left: 0; right: 0; padding: 20px; background: white; border-bottom: 1px solid var(--line); }
  .sync-nav.open { display: flex; flex-direction: column; align-items: stretch; }
  .hero-layout, .scenario-detail, .platform-layout, .faq-layout, .contact-panel { grid-template-columns: 1fr; }
  .hero-layout { padding-top: 44px; padding-bottom: 44px; }
  h1 { font-size: clamp(34px, 7vw, 48px); letter-spacing: -1.4px; }
  .exchange-visual { max-width: 550px; width: 100%; }
  .section { padding: 48px 0; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 20px; }
  .process-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .scenario-detail, .contact-panel { padding: 25px; }
  .boundary { align-items: flex-start; gap: 25px; }
  .boundary-symbol { font-size: 25px; }
  .footer-row { flex-wrap: wrap; }
}
@media (max-width: 480px) {
  .capability-grid, .process-list { grid-template-columns: 1fr; }
  .hero-copy { font-size: 14px; }
  .exchange-visual { padding: 16px; }
  .sync-brand { font-size: 13px; gap: 8px; }
  .sync-brand small { font-size: 9px; }
  .principles-row { display: grid; grid-template-columns: 1fr 1fr; font-size: 10px; }
  .boundary { display: block; }
  .boundary-symbol { display: block; margin-bottom: 18px; }
  .contact-panel { padding: 22px 17px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  .sync-header, .actions, .menu-button, .scenario-buttons, .contact-reveal { display: none; }
  .section { padding: 24px 0; }
  .hero-layout { padding: 25px 0; }
  .boundary-section { background: white; color: var(--ink); }
  .boundary p, .boundary a { color: var(--ink); }
}