:root {
  --ink: #07111f;
  --ink-2: #0a1829;
  --panel: #0d1d31;
  --cyan: #35e7d4;
  --blue: #3987ff;
  --text: #eef7ff;
  --muted: #91a7bd;
  --line: rgba(145, 183, 211, .16);
  --paper: #f5f8fa;
  --paper-text: #102033;
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--ink); font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.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; left: 16px; top: -60px; z-index: 100; padding: 10px 16px; color: var(--ink); background: var(--cyan); transition: top .2s; }
.skip-link:focus { top: 12px; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; height: 82px; border-bottom: 1px solid transparent; transition: background .3s, border-color .3s, height .3s; }
.site-header.scrolled { height: 68px; background: rgba(5, 14, 25, .9); border-color: var(--line); backdrop-filter: blur(18px); }
.nav-wrap { width: min(calc(100% - 48px), var(--max)); height: 100%; margin: auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { position: relative; width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid rgba(53,231,212,.5); transform: rotate(45deg); }
.brand-mark::before { content: ""; width: 18px; height: 18px; border: 2px solid var(--cyan); }
.brand-mark i { position: absolute; width: 4px; height: 4px; background: var(--cyan); border-radius: 50%; }
.brand-mark i:nth-child(1) { top: -3px; left: -3px; }.brand-mark i:nth-child(2) { right: -3px; top: 50%; }.brand-mark i:nth-child(3) { bottom: -3px; left: 50%; }
.brand-copy { display: flex; flex-direction: column; gap: 2px; }
.brand-copy strong { font-size: 18px; letter-spacing: .12em; }
.brand-copy small { color: var(--muted); font-size: 8px; letter-spacing: .2em; }
.site-nav { display: flex; align-items: center; gap: 38px; }
.site-nav a { position: relative; color: #b7c8d8; font-size: 14px; transition: color .2s; }
.site-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -10px; height: 1px; background: var(--cyan); transition: right .25s; }
.site-nav a:hover,.site-nav a.active { color: white; }.site-nav a:hover::after,.site-nav a.active::after { right: 0; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 1px solid var(--line); color: white; background: transparent; }
.menu-toggle span { display: block; height: 1px; margin: 5px 0; background: currentColor; }

.hero { min-height: 760px; height: 100svh; max-height: 980px; position: relative; overflow: hidden; display: flex; align-items: center; isolation: isolate; background: radial-gradient(circle at 70% 44%, #102d47 0, #091827 32%, var(--ink) 66%); }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .3; background-image: linear-gradient(rgba(80,159,190,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(80,159,190,.12) 1px,transparent 1px); background-size: 54px 54px; mask-image: linear-gradient(to bottom,black,transparent 92%); }
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 150px; background: linear-gradient(transparent,var(--ink)); pointer-events: none; }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(10px); opacity: .45; z-index: -1; }
.glow-one { width: 480px; height: 480px; right: 5%; top: 18%; background: radial-gradient(circle,rgba(38,146,255,.18),transparent 68%); }
.glow-two { width: 250px; height: 250px; left: 32%; bottom: 4%; background: radial-gradient(circle,rgba(53,231,212,.09),transparent 70%); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 55px; padding-top: 68px; }
.eyebrow,.section-index { color: var(--cyan); font-size: 11px; letter-spacing: .22em; font-weight: 700; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 25px; }.eyebrow span { width: 30px; height: 1px; background: var(--cyan); }
.hero h1 { margin: 0; font-size: clamp(50px,5.5vw,78px); line-height: 1.12; letter-spacing: -.045em; font-weight: 650; }
.hero h1 em { color: transparent; font-style: normal; background: linear-gradient(90deg,var(--cyan),#5ba4ff 82%); -webkit-background-clip: text; background-clip: text; }
.hero-copy > p { max-width: 600px; margin: 28px 0 32px; color: #a8bbcc; font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; gap: 14px; }
.button { min-height: 50px; padding: 0 24px; display: inline-flex; align-items: center; justify-content: center; gap: 28px; font-size: 14px; border: 1px solid var(--line); transition: transform .2s, border-color .2s, background .2s; }
.button:hover { transform: translateY(-2px); border-color: var(--cyan); }
.button.primary { color: #03151a; background: var(--cyan); border-color: var(--cyan); font-weight: 700; }.button.primary span { font-size: 18px; }
.button.ghost { color: #d3e2ec; background: rgba(255,255,255,.02); }
.hero-tags { padding: 0; margin: 46px 0 0; display: flex; gap: 34px; list-style: none; color: #afc0cf; font-size: 12px; }
.hero-tags li { display: flex; gap: 8px; align-items: center; }.hero-tags span { color: var(--cyan); font-family: Consolas, monospace; font-size: 9px; }

.hero-visual { position: relative; min-height: 500px; }
.orbit { position: absolute; border: 1px solid rgba(83,194,220,.18); border-radius: 50%; left: 50%; top: 50%; transform: translate(-50%,-50%); }
.orbit::before,.orbit::after { content: ""; position: absolute; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 18px var(--cyan); }
.orbit-large { width: 450px; height: 450px; animation: spin 25s linear infinite; }.orbit-large::before { width: 5px; height: 5px; top: 24px; left: 92px; }.orbit-large::after { width: 3px; height: 3px; right: 9px; top: 190px; }
.orbit-small { width: 290px; height: 290px; border-style: dashed; animation: spin-reverse 18s linear infinite; }.orbit-small::before { width: 4px; height: 4px; bottom: 28px; left: 52px; }
.core { position: absolute; left: 50%; top: 50%; width: 148px; height: 148px; transform: translate(-50%,-50%) rotate(45deg); display: grid; place-items: center; color: var(--cyan); background: linear-gradient(145deg,rgba(53,231,212,.19),rgba(57,135,255,.08)); border: 1px solid rgba(53,231,212,.5); box-shadow: inset 0 0 45px rgba(53,231,212,.09),0 0 55px rgba(27,170,208,.12); }
.core::before,.core::after { content: ""; position: absolute; inset: 14px; border: 1px solid rgba(53,231,212,.17); }.core::after { inset: -8px; border-style: dashed; }
.core svg { width: 74px; transform: rotate(-45deg); filter: drop-shadow(0 0 12px rgba(53,231,212,.6)); }
.data-card { position: absolute; min-width: 178px; min-height: 74px; padding: 14px 16px; display: flex; align-items: center; gap: 13px; background: rgba(8,24,39,.82); border: 1px solid rgba(120,192,220,.2); box-shadow: 0 12px 40px rgba(0,0,0,.25); backdrop-filter: blur(10px); }
.data-card::before { content: ""; position: absolute; inset: -1px auto -1px -1px; width: 2px; background: linear-gradient(transparent,var(--cyan),transparent); }
.data-card small { display: block; margin-bottom: 5px; color: #638099; font: 8px Consolas, monospace; letter-spacing: .18em; }.data-card strong { font-size: 13px; letter-spacing: .06em; }
.card-icon { width: 36px; height: 36px; display: grid; place-items: center; color: var(--cyan); border: 1px solid rgba(53,231,212,.25); font: 13px Consolas,monospace; }
.card-code { left: -12px; top: 72px; }.card-device { right: -20px; top: 145px; }.card-system { left: 8px; bottom: 63px; }
.data-card > i { position: absolute; width: 70px; height: 1px; background: linear-gradient(90deg,rgba(53,231,212,.6),transparent); right: -70px; transform: rotate(18deg); transform-origin: left; }.card-device > i { left: -70px; right: auto; transform: rotate(-22deg); background: linear-gradient(90deg,transparent,rgba(53,231,212,.6)); }
.signal { width: 36px; height: 36px; display: flex; align-items: end; justify-content: center; gap: 3px; padding: 9px; border: 1px solid rgba(53,231,212,.25); }.signal b { width: 3px; background: var(--cyan); }.signal b:nth-child(1){height:7px}.signal b:nth-child(2){height:13px}.signal b:nth-child(3){height:18px}
.node { position: absolute; width: 5px; height: 5px; border: 1px solid var(--cyan); transform: rotate(45deg); }.n1{right:45px;bottom:80px}.n2{left:88px;top:215px}.n3{right:86px;top:72px}.n4{left:160px;bottom:12px}
.hero-footer { position: absolute; left: 50%; bottom: 34px; z-index: 2; transform: translateX(-50%); display: flex; align-items: center; gap: 14px; color: #516b81; font: 8px Consolas,monospace; letter-spacing: .2em; }.hero-footer i { display: block; width: 70px; height: 1px; background: linear-gradient(90deg,#516b81,transparent); }
@keyframes spin { to { transform: translate(-50%,-50%) rotate(360deg); } } @keyframes spin-reverse { to { transform: translate(-50%,-50%) rotate(-360deg); } }

.section { padding: 120px 0; }
.services { color: var(--paper-text); background: var(--paper); }
.section-heading { display: grid; grid-template-columns: 1.25fr .75fr; align-items: end; gap: 50px; margin-bottom: 55px; }
.section h2 { margin: 15px 0 0; font-size: clamp(34px,4vw,52px); line-height: 1.25; letter-spacing: -.035em; }
.section-heading > p { margin: 0; color: #617184; line-height: 1.9; font-size: 15px; }
.service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.service-card { position: relative; min-height: 430px; padding: 38px 32px 32px; overflow: hidden; color: #152538; background: #fff; border: 1px solid #e4eaee; transition: transform .3s,box-shadow .3s,border-color .3s; }
.service-card:hover { transform: translateY(-7px); border-color: rgba(24,180,184,.4); box-shadow: 0 22px 50px rgba(36,62,79,.1); }
.service-card.featured { color: var(--text); background: var(--ink-2); border-color: var(--ink-2); }
.service-number { position: absolute; right: 22px; top: 18px; color: #d8e0e6; font: 44px Consolas,monospace; }.featured .service-number { color: rgba(255,255,255,.07); }
.service-icon { width: 58px; height: 58px; margin: 14px 0 35px; display: flex; align-items: center; justify-content: center; color: #128c91; border: 1px solid #c6e5e4; background: #effafa; }
.featured .service-icon { color: var(--cyan); border-color: rgba(53,231,212,.28); background: rgba(53,231,212,.06); }
.code-icon { gap: 4px; font: 15px Consolas,monospace; }.code-icon i { width: 12px; height: 1px; background: currentColor; transform: rotate(-62deg); }
.device-icon { flex-direction: column; gap: 5px; }.device-icon i { width: 27px; height: 20px; border: 1px solid currentColor; }.device-icon b { width: 17px; height: 2px; border-inline: 5px solid transparent; border-bottom: 1px solid currentColor; }
.hardware-icon { position: relative; }.hardware-icon i { width: 27px; height: 29px; border: 1px solid currentColor; }.hardware-icon b { position: absolute; width: 15px; height: 1px; background: currentColor; }.hardware-icon span { position: absolute; bottom: 18px; width: 4px; height: 4px; border-radius: 50%; background: currentColor; }
.service-card h3 { margin: 0 0 15px; font-size: 23px; }.service-card p { min-height: 78px; margin: 0 0 24px; color: #69798a; font-size: 14px; line-height: 1.85; }.featured p { color: #9bb0c3; }
.service-card ul { margin: 0; padding: 20px 0 0; border-top: 1px solid #edf0f2; list-style: none; }.featured ul { border-color: var(--line); }
.service-card li { position: relative; margin: 10px 0; padding-left: 15px; color: #516478; font-size: 13px; }.featured li { color: #b5c7d7; }.service-card li::before { content: ""; position: absolute; left: 0; top: 7px; width: 4px; height: 4px; background: #18aeb0; transform: rotate(45deg); }
.scope-note { margin: 24px 0 0; color: #738292; font-size: 12px; text-align: right; }

.process { background: var(--ink); }
.process-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.process-intro { position: sticky; top: 110px; align-self: start; }.process-intro > p { max-width: 420px; margin: 25px 0 45px; color: var(--muted); line-height: 1.9; }
.metric { display: flex; align-items: center; gap: 15px; }.metric strong { color: var(--cyan); font: 64px/1 Consolas,monospace; }.metric span { color: #627a90; font: 9px/1.6 Consolas,monospace; letter-spacing: .14em; }
.process-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.process-list li { min-height: 134px; padding: 28px 8px; display: grid; grid-template-columns: 50px 1fr auto; gap: 24px; align-items: start; border-bottom: 1px solid var(--line); transition: padding-left .25s,background .25s; }
.process-list li:hover { padding-left: 20px; background: linear-gradient(90deg,rgba(53,231,212,.04),transparent); }
.process-list > li > span { color: var(--cyan); font: 11px Consolas,monospace; }.process-list h3 { margin: -3px 0 10px; font-size: 20px; }.process-list p { margin: 0; color: #8095a8; font-size: 14px; line-height: 1.7; }.process-list i { color: #344c61; font: normal 8px Consolas,monospace; letter-spacing: .2em; }

.about { color: var(--paper-text); background: white; }
.about-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 90px; align-items: center; }
.about-visual { position: relative; min-height: 480px; overflow: hidden; background: #071726; border-radius: 2px; }
.about-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg,transparent 40%,rgba(53,231,212,.08)); }
.matrix { position: absolute; inset: 34px; display: grid; grid-template-columns: repeat(4,1fr); align-content: space-between; opacity: .2; color: var(--cyan); font: 13px Consolas,monospace; }
.about-seal { position: absolute; left: 50%; top: 46%; width: 170px; height: 170px; transform: translate(-50%,-50%) rotate(45deg); display: grid; place-items: center; border: 1px solid rgba(53,231,212,.35); background: rgba(53,231,212,.05); }
.about-seal::before,.about-seal::after { content: ""; position: absolute; inset: 17px; border: 1px solid rgba(53,231,212,.14); }.about-seal::after { inset: -15px; border-style: dashed; }
.about-seal b,.about-seal small { position: absolute; transform: rotate(-45deg); }.about-seal b { color: var(--cyan); font: 54px Consolas,monospace; }.about-seal small { margin-top: 75px; color: #7695a7; font: 7px Consolas,monospace; letter-spacing: .26em; }
.about-visual > p { position: absolute; left: 32px; bottom: 25px; z-index: 2; margin: 0; color: #547186; font: 9px/1.6 Consolas,monospace; letter-spacing: .2em; }
.about-copy h2 { margin-bottom: 27px; }.about-copy p { color: #617184; font-size: 15px; line-height: 1.95; }.about-copy .lead { color: #263a4e; font-size: 17px; }
.company-facts { margin: 38px 0 0; border-top: 1px solid #dfe7ec; }
.company-facts div { padding: 15px 0; display: grid; grid-template-columns: 100px 1fr; border-bottom: 1px solid #dfe7ec; }.company-facts dt { color: #83909c; font-size: 12px; }.company-facts dd { margin: 0; font-size: 14px; font-weight: 600; }

.principles { padding: 0; background: #edf3f5; color: var(--paper-text); border-top: 1px solid #dce5e9; }
.principle-row { display: grid; grid-template-columns: repeat(4,1fr); }
.principle-row div { min-height: 150px; padding: 34px 26px; display: flex; flex-direction: column; border-left: 1px solid #dce5e9; }.principle-row div:last-child { border-right: 1px solid #dce5e9; }
.principle-row span { color: #21a8a7; font: 9px Consolas,monospace; }.principle-row strong { margin: 17px 0 8px; font-size: 18px; }.principle-row small { color: #9aa7b0; font: 7px Consolas,monospace; letter-spacing: .16em; }

.site-footer { padding: 65px 0 0; background: #050d17; }
.footer-main { display: grid; grid-template-columns: 1.8fr .65fr .65fr auto; gap: 45px; align-items: start; }
.footer-brand p { margin: 22px 0 0; color: #647a8e; font-size: 12px; letter-spacing: .08em; }
.footer-nav { display: flex; flex-direction: column; gap: 13px; }.footer-nav strong { margin-bottom: 6px; color: #dce8f0; font-size: 13px; }.footer-nav a { color: #6d8498; font-size: 12px; transition: color .2s; }.footer-nav a:hover { color: var(--cyan); }
.back-top { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--line); color: var(--cyan); }
.footer-bottom { min-height: 70px; margin-top: 55px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); color: #536b80; font-size: 11px; }.footer-bottom a { color: #8398aa; }.footer-bottom a:hover { color: var(--cyan); }

.legal-page { min-height: 100vh; padding: 150px 0 100px; color: var(--paper-text); background: var(--paper); }
.legal-document { max-width: 820px; padding: 52px 58px; margin: auto; background: white; border: 1px solid #e0e8ec; box-shadow: 0 25px 70px rgba(20,48,65,.08); }
.legal-document h1 { margin: 8px 0 30px; font-size: 38px; }.legal-document h2 { margin: 35px 0 12px; font-size: 19px; }.legal-document p,.legal-document li { color: #56697b; line-height: 1.9; font-size: 14px; }.legal-document .updated { color: #8a9aa7; font-size: 12px; }.legal-back { display: inline-flex; margin-top: 35px; color: #087e83; font-size: 13px; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .75s ease,transform .75s 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) {
  .hero { height: auto; min-height: 900px; padding: 130px 0 90px; }.hero-grid { grid-template-columns: 1fr; }.hero-copy { max-width: 680px; }.hero-visual { min-height: 430px; }
  .section-heading,.process-layout,.about-grid { grid-template-columns: 1fr; }.process-layout,.about-grid { gap: 55px; }.process-intro { position: static; }.service-grid { grid-template-columns: 1fr 1fr; }.service-card:last-child { grid-column: 1/-1; min-height: 350px; }
}
@media (max-width: 700px) {
  .container,.nav-wrap { width: min(calc(100% - 32px),var(--max)); }.site-header { height: 68px; }.menu-toggle { display: block; }.site-nav { position: absolute; left: 0; right: 0; top: 68px; padding: 20px 24px 28px; flex-direction: column; align-items: flex-start; gap: 22px; background: rgba(5,14,25,.98); border-bottom: 1px solid var(--line); transform: translateY(-130%); opacity: 0; pointer-events: none; transition: transform .25s,opacity .25s; }.site-nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .hero { min-height: 960px; }.hero-grid { padding-top: 0; gap: 30px; }.hero h1 { font-size: 43px; }.hero-copy > p { font-size: 15px; }.hero-actions { flex-direction: column; align-items: stretch; }.hero-tags { gap: 15px; flex-wrap: wrap; }.hero-visual { min-height: 380px; transform: scale(.82); margin-inline: -35px; }.orbit-large { width: 390px; height: 390px; }.card-code{left:0}.card-device{right:0}.card-system{left:10px;bottom:40px}
  .section { padding: 85px 0; }.section-heading { gap: 22px; margin-bottom: 38px; }.service-grid { grid-template-columns: 1fr; }.service-card,.service-card:last-child { grid-column: auto; min-height: auto; }.scope-note { text-align: left; line-height: 1.7; }
  .process-list li { grid-template-columns: 35px 1fr; }.process-list i { display: none; }.about-visual { min-height: 380px; }.principle-row { grid-template-columns: 1fr 1fr; }.principle-row div { min-height: 125px; }
  .footer-main { grid-template-columns: 1fr 1fr; }.footer-brand { grid-column: 1/-1; }.back-top { position: absolute; right: 16px; }.footer-bottom { padding: 22px 0; flex-direction: column; align-items: flex-start; }.legal-page { padding: 105px 16px 60px; }.legal-document { padding: 34px 24px; }.legal-document h1 { font-size: 30px; }
}