:root {
  --ink: #091528;
  --navy: #0d1d35;
  --navy-2: #132747;
  --blue: #336fe2;
  --blue-hover: #235dca;
  --cyan: #69b8f4;
  --white: #f9fbff;
  --muted-light: #a9b9d0;
  --text: #14243a;
  --muted: #5d7088;
  --line: #dce5f0;
  --pale: #f4f7fb;
  --header-height: 72px;
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--white);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; }
[hidden] { display: none !important; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
svg { display: block; max-width: 100%; }
::selection { color: var(--ink); background: #a8d6ff; }
:focus-visible { outline: 3px solid #78c5ff; outline-offset: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: -80px; left: 20px; padding: 12px 18px; border-radius: 8px; color: var(--ink); background: white; }
.skip-link:focus { top: 12px; }
.page-width { width: min(100% - 64px, 1160px); margin-inline: auto; }
section[id] { scroll-margin-top: calc(var(--header-height) + 24px); }

/* Navigation */
.site-header { position: sticky; z-index: 100; top: 0; min-height: var(--header-height); border-bottom: 1px solid rgba(167, 198, 235, .12); background: rgba(8, 19, 36, .96); backdrop-filter: blur(18px); color: var(--white); }
.header-inner { display: flex; align-items: center; gap: 42px; min-height: var(--header-height); }
.brand { display: inline-flex; align-items: center; gap: 9px; color: #fff; font-size: 1.42rem; line-height: 1; font-weight: 800; letter-spacing: -.06em; white-space: nowrap; }
.brand > span:last-child { color: #8fc8ff; margin-left: -9px; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; color: #8fc8ff; background: #17427c; }
.brand-mark svg { width: 24px; height: 24px; }
.desktop-nav { display: flex; align-items: center; gap: clamp(22px, 2.4vw, 36px); margin-left: auto; }
.nav-link, .login-link { color: #becce0; font-size: .91rem; font-weight: 600; white-space: nowrap; transition: color 160ms ease; }
.nav-link { position: relative; padding-block: 27px; }
.nav-link::after { content: ""; position: absolute; right: 0; bottom: 0; left: 0; height: 2px; background: #7bbcff; transform: scaleX(0); transition: transform 160ms ease; }
.nav-link:hover, .nav-link.is-active, .login-link:hover { color: white; }
.nav-link:hover::after, .nav-link.is-active::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 23px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 16px; min-height: 52px; padding: 13px 23px; border: 1px solid transparent; border-radius: 8px; font-size: .94rem; line-height: 1.2; font-weight: 700; text-align: center; white-space: nowrap; transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease; }
.button-blue { color: white; background: var(--blue); box-shadow: 0 8px 22px rgba(27, 78, 181, .22); }
.button-blue:hover { background: var(--blue-hover); }
.button-white { color: var(--ink); background: white; }
.button-white:hover { background: #e9f3ff; }
.button-ghost { color: #eef6ff; border-color: #6684a8; background: rgba(255,255,255,.02); }
.button-ghost:hover { border-color: #afccef; background: rgba(255,255,255,.08); }
.button-small { min-height: 42px; padding: 10px 16px; font-size: .86rem; }
.button-large { min-height: 56px; padding-inline: 27px; }
.button-arrow { font-size: 1.15rem; font-weight: 500; line-height: 1; }
.menu-toggle, .mobile-menu { display: none; }

/* Hero */
.hero { position: relative; overflow: hidden; color: var(--white); background: radial-gradient(ellipse 58% 42% at 50% 10%, rgba(50,101,200,.51), transparent 82%), linear-gradient(180deg, #112342 0%, #0a1830 64%, #081526 100%); }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(90deg, transparent 0%, rgba(111,165,255,.035) 50%, transparent 100%); }
.hero-inner { position: relative; padding-top: 116px; padding-bottom: 104px; }
.hero-copy { max-width: 930px; margin-inline: auto; text-align: center; }
.hero-kicker { display: inline-flex; align-items: center; gap: 12px; margin: 0 0 27px; color: #b5d1f5; font-size: .86rem; font-weight: 600; letter-spacing: .12em; }
.hero-kicker span { width: 26px; height: 1px; background: #80b8f5; }
.hero h1 { margin: 0; color: white; font-size: clamp(3.1rem, 5.25vw, 5.45rem); line-height: 1.17; letter-spacing: -.065em; font-weight: 800; }
.hero-description { max-width: 740px; margin: 30px auto 0; color: #bdcde3; font-size: clamp(1.04rem, 1.4vw, 1.22rem); line-height: 1.9; }
.hero-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.hero-path { display: flex; justify-content: center; flex-wrap: wrap; gap: 0; margin-top: 41px; color: #95b3d8; font-size: .84rem; }
.hero-path span { display: inline-flex; align-items: center; gap: 19px; }
.hero-path span + span::before { content: ""; width: 4px; height: 4px; margin-inline: 19px 0; border-radius: 50%; background: #6faeea; }
.network-visual { position: relative; width: min(100%, 1080px); min-height: 430px; margin: 74px auto 0; overflow: hidden; border: 1px solid rgba(139,183,239,.24); border-radius: 20px; background: radial-gradient(circle at 50% 46%, rgba(57,113,218,.32), transparent 31%), linear-gradient(145deg, #0c2449, #0a1a34 58%, #071426); box-shadow: 0 30px 70px rgba(0,0,0,.22), inset 0 1px rgba(190,218,255,.09); }
.network-grid { position: absolute; inset: 0; opacity: .36; background-image: linear-gradient(rgba(113,156,222,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(113,156,222,.12) 1px, transparent 1px); background-size: 44px 44px; mask-image: radial-gradient(ellipse at center, black, transparent 82%); }
.network-lines { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.network-lines path { fill: none; stroke: #417cc8; stroke-width: 1.5; opacity: .83; }
.network-lines circle { fill: #90caff; filter: drop-shadow(0 0 6px #6eb4ff); }
.network-core { position: absolute; top: 50%; left: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; width: 238px; height: 238px; border: 1px solid rgba(131,197,255,.67); border-radius: 50%; background: radial-gradient(circle at 50% 24%, #214e95, #102a54 65%, #0a1c38); box-shadow: 0 0 0 14px rgba(53,114,211,.10), 0 0 0 37px rgba(53,114,211,.055), 0 0 65px rgba(81,156,249,.25); transform: translate(-50%, -50%); text-align: center; }
.core-icon { display: grid; place-items: center; width: 45px; height: 49px; margin-bottom: 13px; color: #a2d6ff; }
.core-icon svg { width: 45px; height: 49px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.network-core strong { font-size: 1.42rem; letter-spacing: -.03em; }
.network-core small { margin-top: 8px; color: #bbd0e9; font-size: .73rem; }
.network-node { position: absolute; display: flex; align-items: center; gap: 13px; width: 200px; height: 74px; padding: 13px 17px; border: 1px solid rgba(135,181,238,.25); border-radius: 12px; background: rgba(19,48,89,.82); box-shadow: inset 0 1px rgba(220,238,255,.07); }
.node-cloud, .node-server { top: 65px; }
.node-flow, .node-monitor { bottom: 65px; }
.node-cloud, .node-flow { left: calc(22% - 100px); }
.node-server, .node-monitor { right: calc(22% - 100px); }
.node-glyph { display: grid; place-items: center; flex: none; width: 34px; height: 34px; border-radius: 8px; color: #a5d5ff; background: rgba(77,144,234,.18); font-size: 1.4rem; line-height: 1; }
.network-node strong { display: block; color: #f4f9ff; font-size: .9rem; }
.network-node small { display: block; margin-top: 4px; color: #9db9d9; font-size: .72rem; }
.network-visual figcaption { position: absolute; right: 20px; bottom: 15px; left: 20px; color: #8fa7c5; font-size: .72rem; line-height: 1.5; text-align: center; }

/* Product capabilities */
.section-dark { color: white; background: #0b192e; }
.capabilities-section { padding-block: 115px 123px; }
.section-heading { max-width: 720px; margin-bottom: 54px; }
.section-kicker { margin: 0 0 17px; color: #326bcb; font-size: .86rem; font-weight: 750; letter-spacing: .03em; }
.section-heading h2 { margin: 0; color: #102440; font-size: clamp(2.4rem, 3.9vw, 3.85rem); line-height: 1.24; letter-spacing: -.055em; font-weight: 800; }
.section-heading > p:last-child { max-width: 650px; margin: 20px 0 0; color: var(--muted); font-size: 1.02rem; line-height: 1.85; }
.section-heading-dark .section-kicker { color: #85beff; }
.section-heading-dark h2 { color: white; }
.section-heading-dark > p:last-child { color: #a7bad4; }
.capability-list { border-top: 1px solid rgba(169,196,233,.22); }
.capability { display: grid; grid-template-columns: 82px minmax(0, 1.15fr) minmax(0, 1fr); align-items: start; gap: 20px; padding: 36px 0 39px; border-bottom: 1px solid rgba(169,196,233,.22); }
.capability-index { padding-top: 4px; color: #70aeec; font-size: .91rem; font-weight: 750; font-variant-numeric: tabular-nums; }
.capability h3 { margin: 0; color: #f6faff; font-size: 1.5rem; letter-spacing: -.035em; }
.capability-result { margin: 12px 0 0; color: #d5e4f5; font-size: .98rem; line-height: 1.7; }
.capability-condition { max-width: 35em; margin: 0; color: #99aecb; font-size: .9rem; line-height: 1.85; }
.mid-cta { color: white; background: #152c50; }
.mid-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; min-height: 154px; }
.mid-cta p { margin: 0; color: #b5c9e4; font-size: clamp(1.2rem, 2vw, 1.7rem); line-height: 1.5; }
.mid-cta strong { display: block; color: white; font-weight: 750; }

/* Use cases */
.section-light { padding-block: 115px; }
.scenarios-section { background: #f4f7fb; }
.scenario-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.scenario { display: flex; flex-direction: column; min-height: 328px; padding: 33px 30px 28px; border: 1px solid #dfe7f1; border-radius: 13px; background: white; }
.scenario-icon { display: grid; place-items: center; width: 50px; height: 50px; margin-bottom: 32px; border-radius: 11px; color: #3473d1; background: #eaf2fd; }
.scenario-icon svg { width: 30px; height: 30px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.scenario h3 { margin: 0 0 12px; color: #142940; font-size: 1.2rem; }
.scenario p { margin: 0; color: #5e728a; font-size: .91rem; line-height: 1.84; }
.scenario-outcome { display: block; margin-top: auto; padding-top: 27px; color: #245fb5; font-size: .86rem; font-weight: 750; }
.scenario-outcome::before { content: ""; display: inline-block; width: 13px; height: 2px; margin: 0 9px 4px 0; background: currentColor; }

/* Process */
.process-section { background: white; }
.process-list { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 15px; margin: 0; padding: 0; list-style: none; }
.process-list li { position: relative; padding: 31px 18px 0 0; border-top: 1px solid #a8bfdc; }
.process-list li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: #3476d5; }
.step-number { display: block; margin-bottom: 26px; color: #2768be; font-size: .95rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.process-list h3 { margin: 0 0 10px; color: #142940; font-size: 1.1rem; }
.process-list p { margin: 0; color: var(--muted); font-size: .87rem; line-height: 1.8; }
.process-note { margin: 53px 0 0; padding: 18px 23px; border-left: 3px solid #477fcf; color: #4b6380; background: #eef4fb; font-size: .88rem; line-height: 1.75; }

/* Closing and footer */
.closing-section { padding-block: 98px; color: white; background: radial-gradient(circle at 90% 0%, #204882, transparent 42%), #102442; }
.closing-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.closing-inner .section-kicker { color: #93c9ff; }
.closing-inner h2 { margin: 0; color: white; font-size: clamp(2rem, 3.5vw, 3.15rem); line-height: 1.3; letter-spacing: -.05em; }
.closing-inner p:last-child { margin: 17px 0 0; color: #b7cae2; line-height: 1.8; }
.site-footer { color: #b2c3da; background: #081321; }
.footer-main { display: grid; grid-template-columns: 1.5fr 1fr .8fr; gap: 32px; padding-block: 64px 57px; }
.footer-brand p { margin: 19px 0 0; color: #8fa8c3; font-size: .89rem; }
.footer-nav { display: flex; flex-direction: column; gap: 17px; align-items: flex-start; }
.footer-actions { display: flex; flex-direction: column; gap: 17px; align-items: flex-start; }
.footer-nav a, .footer-actions a { font-size: .91rem; }
.footer-nav a:hover, .footer-actions a:hover { color: white; text-decoration: underline; text-underline-offset: 5px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; min-height: 60px; padding-block: 19px; border-top: 1px solid rgba(181,207,239,.14); color: #7895b4; font-size: .78rem; }
#icp-link:hover { color: white; }

@media (max-width: 970px) {
  .header-inner { gap: 24px; }
  .desktop-nav { gap: 19px; }
  .header-actions { gap: 14px; }
  .nav-link, .login-link { font-size: .84rem; }
}
@media (max-width: 850px) {
  :root { --header-height: 66px; }
  .page-width { width: min(100% - 44px, 700px); }
  .desktop-nav, .header-actions { display: none; }
  .header-inner { justify-content: space-between; }
  .menu-toggle { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; width: 42px; height: 42px; border: 1px solid #38516d; border-radius: 8px; background: #142941; }
  .menu-toggle span { width: 18px; height: 2px; border-radius: 2px; background: #e8f4ff; }
  .mobile-menu:not([hidden]) { display: flex; flex-direction: column; padding: 11px 22px 23px; border-top: 1px solid #2b415d; background: #0b1b31; box-shadow: 0 20px 30px rgba(0,0,0,.26); }
  .mobile-menu > a { padding: 15px 2px; border-bottom: 1px solid #2b415d; color: #e0eafa; font-size: .96rem; }
  .mobile-menu a.is-active { color: #8dc6ff; }
  .mobile-menu-actions { display: flex; align-items: center; gap: 16px; padding-top: 19px; }
  .mobile-menu-actions > a:first-child { color: #c3d5ee; }
  .mobile-menu-actions .button { flex: 1; }
  .hero-inner { padding-top: 90px; }
  .hero h1 { font-size: clamp(3rem, 6.8vw, 4.8rem); }
  .network-visual { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; min-height: 0; margin-top: 60px; padding: 40px; }
  .network-lines { display: none; }
  .network-core { position: relative; top: auto; left: auto; grid-column: 1 / -1; width: 210px; height: 210px; margin: 0 auto 25px; transform: none; }
  .network-node { position: relative; top: auto; right: auto; bottom: auto; left: auto; width: 100%; }
  .network-visual figcaption { position: relative; right: auto; bottom: auto; left: auto; grid-column: 1 / -1; padding-top: 12px; }
  .capability { grid-template-columns: 55px minmax(0, 1fr); }
  .capability-condition { grid-column: 2; }
  .scenario-list { grid-template-columns: 1fr; }
  .scenario { min-height: 0; }
  .process-list { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 38px; }
  .footer-main { grid-template-columns: 1.2fr 1fr; }
}
@media (max-width: 600px) {
  .page-width { width: min(100% - 36px, 480px); }
  .brand { font-size: 1.35rem; }
  .hero-inner { padding-top: 72px; padding-bottom: 80px; }
  .hero-kicker { margin-bottom: 23px; font-size: .76rem; }
  .hero h1 { font-size: clamp(2.35rem, 9.4vw, 3.25rem); line-height: 1.23; }
  .hero-description { margin-top: 24px; font-size: .98rem; line-height: 1.82; }
  .hero-actions { margin-top: 30px; }
  .hero-actions .button { width: 100%; }
  .hero-path { gap: 11px 18px; margin-top: 32px; font-size: .74rem; }
  .hero-path span { gap: 0; }
  .hero-path span + span::before { margin-right: 10px; }
  .network-visual { min-height: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; margin-top: 54px; padding: 28px 15px 22px; }
  .network-core { position: relative; top: auto; left: auto; grid-column: 1 / -1; width: 176px; height: 176px; margin: 1px auto 21px; transform: none; }
  .core-icon { width: 35px; height: 38px; margin-bottom: 7px; }
  .core-icon svg { width: 35px; height: 38px; }
  .network-core strong { font-size: 1.14rem; }
  .network-core small { font-size: .61rem; }
  .network-node { position: relative; top: auto; right: auto; bottom: auto; left: auto; width: 100%; height: 73px; gap: 7px; padding: 8px; }
  .node-glyph { width: 24px; height: 24px; font-size: 1rem; }
  .network-node strong { font-size: .76rem; }
  .network-node small { font-size: .62rem; }
  .network-visual figcaption { position: relative; right: auto; bottom: auto; left: auto; grid-column: 1 / -1; padding-top: 12px; font-size: .68rem; }
  .capabilities-section, .section-light { padding-block: 75px; }
  .section-heading { margin-bottom: 35px; }
  .section-heading h2 { font-size: clamp(2rem, 8vw, 2.7rem); }
  .section-heading > p:last-child { margin-top: 16px; font-size: .93rem; }
  .capability { grid-template-columns: 39px minmax(0, 1fr); gap: 11px; padding: 28px 0; }
  .capability h3 { font-size: 1.22rem; }
  .capability-result { margin-top: 9px; font-size: .91rem; }
  .capability-condition { font-size: .82rem; }
  .mid-cta-inner { align-items: stretch; flex-direction: column; gap: 22px; padding-block: 34px; }
  .mid-cta .button { width: 100%; }
  .scenario { padding: 28px 25px; }
  .scenario-icon { margin-bottom: 24px; }
  .process-list { grid-template-columns: 1fr; gap: 0; }
  .process-list li { min-height: 113px; padding: 0 0 23px 50px; border-top: 0; border-left: 1px solid #a8bfdc; }
  .process-list li:last-child { min-height: 77px; border-left-color: transparent; }
  .process-list li::before { top: 0; left: -5px; }
  .step-number { margin-bottom: 5px; }
  .process-note { margin-top: 24px; }
  .closing-section { padding-block: 76px; }
  .closing-inner { align-items: stretch; flex-direction: column; gap: 27px; }
  .closing-inner .button { width: 100%; }
  .footer-main { grid-template-columns: 1fr; gap: 34px; padding-block: 47px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button, .nav-link, .nav-link::after, .login-link { transition: none; }
}