:root {
  --ink: #06141d;
  --ink-soft: #0b202b;
  --paper: #eef2ef;
  --paper-warm: #e6e9e4;
  --white: #f8fbf8;
  --muted: #64727a;
  --line: rgba(9, 34, 44, .16);
  --teal: #48c9c0;
  --teal-bright: #6be1d8;
  --lime: #a8ef61;
  --max: 1240px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
svg { display: block; }
.shell { 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; z-index: 1000; left: 16px; top: 12px; padding: 10px 16px;
  background: var(--lime); color: var(--ink); transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed; inset: 0 0 auto; z-index: 100;
  background: rgba(6, 20, 29, .78); border-bottom: 1px solid rgba(255,255,255,.1);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.nav-wrap { height: 82px; display: flex; align-items: center; gap: 34px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--white); flex-shrink: 0; }
.brand-mark { width: 40px; height: 40px; color: var(--teal-bright); }
.brand-mark svg { width: 100%; height: 100%; }
.brand-mark path { fill: none; stroke: currentColor; stroke-width: 2.5; }
.brand-mark circle { fill: var(--lime); stroke: var(--ink); stroke-width: 1.5; }
.brand-copy { display: flex; flex-direction: column; line-height: 1; }
.brand-copy strong { font-size: 16px; letter-spacing: .16em; }
.brand-copy small { margin-top: 6px; color: rgba(255,255,255,.56); font-size: 8px; letter-spacing: .15em; }
.main-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.main-nav a { position: relative; color: rgba(255,255,255,.72); font-size: 13px; }
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -8px; width: 100%; height: 1px;
  background: var(--lime); transform: scaleX(0); transform-origin: right; transition: transform .35s var(--ease);
}
.main-nav a:hover { color: var(--white); }
.main-nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-actions { display: flex; align-items: center; gap: 18px; }
.language-toggle {
  border: 0; padding: 6px; background: transparent; color: rgba(255,255,255,.36);
  cursor: pointer; font-size: 12px; letter-spacing: .08em;
}
.language-toggle span { margin-inline: 2px; }
.language-toggle .active { color: var(--lime); }
.button {
  display: inline-flex; min-height: 52px; align-items: center; justify-content: center; gap: 38px;
  padding: 0 22px; background: var(--lime); color: var(--ink); border: 1px solid var(--lime);
  font-weight: 700; font-size: 13px; letter-spacing: .02em; transition: .3s var(--ease);
}
.button:hover { background: transparent; color: var(--lime); transform: translateY(-2px); }
.button i { font-style: normal; font-size: 18px; }
.button-small { min-height: 38px; padding: 0 15px; gap: 0; font-size: 11px; }
.menu-button { display: none; }

.hero {
  position: relative; min-height: 760px; height: max(760px, 100svh); overflow: hidden;
  color: var(--white); background: var(--ink); isolation: isolate;
}
.hero-grid, .contact-pattern {
  position: absolute; inset: 0; z-index: -3; opacity: .18;
  background-image: linear-gradient(rgba(108,220,211,.16) 1px, transparent 1px), linear-gradient(90deg, rgba(108,220,211,.16) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: linear-gradient(to right, #000, transparent 82%);
}
.hero-glow { position: absolute; z-index: -2; border-radius: 50%; filter: blur(1px); }
.hero-glow-one {
  width: 720px; height: 720px; right: -200px; top: -180px;
  background: radial-gradient(circle, rgba(31,145,157,.35), rgba(6,20,29,0) 68%);
}
.hero-glow-two {
  width: 500px; height: 500px; left: 26%; bottom: -320px;
  background: radial-gradient(circle, rgba(168,239,97,.14), rgba(6,20,29,0) 70%);
}
.hero-layout { min-height: inherit; height: 100%; display: grid; grid-template-columns: .93fr 1.07fr; align-items: center; gap: 34px; padding-top: 95px; }
.hero-copy { position: relative; z-index: 2; padding-top: 20px; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 30px; color: var(--teal-bright); font-size: 10px; letter-spacing: .19em; }
.eyebrow span { display: block; width: 32px; height: 1px; background: currentColor; }
.hero h1 { margin: 0; font-size: clamp(58px, 6.6vw, 100px); font-weight: 500; letter-spacing: -.055em; line-height: .91; }
.hero h1 em { color: var(--lime); font-style: normal; }
.hero-lead { max-width: 585px; margin: 32px 0 0; color: rgba(255,255,255,.62); font-size: clamp(16px, 1.4vw, 19px); line-height: 1.7; }
.hero-actions { display: flex; align-items: center; gap: 32px; margin-top: 35px; }
.text-link { display: inline-flex; align-items: center; gap: 24px; color: rgba(255,255,255,.78); font-size: 13px; }
.text-link i { font-style: normal; color: var(--teal-bright); font-size: 18px; transition: transform .3s var(--ease); }
.text-link:hover i { transform: translateX(6px); }
.hero-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; max-width: 540px; margin-top: 54px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.14); }
.hero-meta div { display: flex; flex-direction: column; }
.hero-meta strong { color: var(--teal-bright); font-size: 10px; letter-spacing: .12em; }
.hero-meta span { margin-top: 4px; color: rgba(255,255,255,.52); font-size: 11px; }

.hero-visual { position: relative; height: min(640px, 72vh); min-height: 520px; }
.product-stage { position: absolute; inset: 6% 0 2% 2%; overflow: hidden; border: 1px solid rgba(103,224,214,.23); background: radial-gradient(circle at 56% 42%, rgba(56,150,159,.22), rgba(6,20,29,.04) 64%), linear-gradient(145deg, rgba(25,68,82,.2), rgba(6,20,29,.05)); clip-path: polygon(7% 0,100% 0,100% 92%,92% 100%,0 100%,0 7%); }
.product-stage::before, .product-stage::after { content: ""; position: absolute; width: 90px; height: 2px; background: var(--lime); }
.product-stage::before { left: 0; top: 7%; }
.product-stage::after { right: 0; bottom: 8%; }
.stage-label { position: absolute; z-index: 3; top: 22px; left: 28px; display: flex; gap: 10px; align-items: center; color: rgba(255,255,255,.45); font-size: 9px; letter-spacing: .18em; }
.stage-label span { width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 12px var(--lime); }
.adapter-photo { position: absolute; z-index: 1; left: 5%; top: 2%; width: 98%; height: 101%; object-fit: contain; filter: drop-shadow(0 34px 28px rgba(0,8,12,.58)); transform: rotate(-1.5deg); }
.stage-spec { position: absolute; z-index: 3; min-width: 86px; padding: 10px 13px; border-left: 1px solid var(--teal); background: rgba(6,20,29,.78); }
.stage-spec span, .stage-spec strong { display: block; }
.stage-spec span { color: rgba(255,255,255,.38); font-size: 8px; letter-spacing: .15em; }
.stage-spec strong { color: var(--white); font-size: 11px; letter-spacing: .08em; }
.spec-one { left: 5%; bottom: 16%; }.spec-two { right: 4%; top: 16%; }
.render-label { position: absolute; z-index: 3; right: 22px; bottom: 18px; color: rgba(255,255,255,.34); font-size: 8px; letter-spacing: .12em; text-transform: uppercase; }
.orbit { position: absolute; border: 1px solid rgba(74,202,192,.18); border-radius: 50%; }
.orbit-one { width: 530px; height: 530px; right: -100px; top: 5%; }
.orbit-two { width: 650px; height: 650px; right: -160px; top: -5%; }
.network-node { position: absolute; z-index: 4; width: 12px; height: 12px; border: 1px solid var(--teal); border-radius: 50%; }
.network-node span { position: absolute; inset: 3px; border-radius: 50%; background: var(--lime); }
.node-a { right: 2%; top: 24%; }.node-b { left: 5%; bottom: 8%; }.node-c { right: 8%; bottom: 14%; }
.scroll-cue { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.35); font-size: 9px; letter-spacing: .14em; text-transform: uppercase; }
.scroll-cue i { position: relative; width: 1px; height: 31px; overflow: hidden; background: rgba(255,255,255,.15); }
.scroll-cue i::after { content: ""; position: absolute; inset: 0; background: var(--lime); animation: scroll 2s infinite; }
@keyframes scroll { 0% { transform: translateY(-100%); } 45%,55% { transform: translateY(0); } 100% { transform: translateY(100%); } }

.intro-strip { border-bottom: 1px solid var(--line); background: var(--paper-warm); }
.intro-strip .shell { min-height: 112px; display: flex; align-items: center; gap: 34px; }
.intro-strip p { margin: 0; max-width: 540px; font-size: 20px; font-weight: 600; line-height: 1.4; }
.strip-line { height: 1px; flex: 1; background: var(--line); }
.intro-strip span { color: var(--muted); font-size: 9px; letter-spacing: .17em; white-space: nowrap; }

.section { padding: 132px 0; }
.section-heading { display: grid; grid-template-columns: 1.35fr .65fr; gap: 80px; align-items: end; }
.section-index { margin: 0 0 22px; color: #3e636a; font-size: 10px; font-weight: 700; letter-spacing: .18em; }
.section-index.light { color: var(--teal-bright); }
.section h2, .contact h2 { margin: 0; font-size: clamp(42px, 5.2vw, 72px); font-weight: 500; line-height: 1.03; letter-spacing: -.045em; }
.section-heading > p { margin: 0 0 6px; color: var(--muted); font-size: 16px; line-height: 1.75; }
.product-showcase { display: grid; grid-template-columns: 1.25fr .75fr; min-height: 620px; margin-top: 70px; border: 1px solid var(--line); background: var(--white); }
.product-photo-panel { position: relative; min-width: 0; overflow: hidden; border-right: 1px solid var(--line); background: #f8f8f6; }
.product-photo-panel::after { content: ""; position: absolute; inset: auto 0 0; height: 22%; background: linear-gradient(transparent, rgba(6,20,29,.035)); pointer-events: none; }
.product-photo-panel img { width: 100%; height: 100%; min-height: 620px; display: block; object-fit: cover; object-position: center; transition: transform .8s var(--ease); }
.product-showcase:hover .product-photo-panel img { transform: scale(1.025); }
.catalog-kicker { position: absolute; z-index: 2; left: 24px; top: 22px; color: #547078; font-size: 8px; letter-spacing: .18em; }
.catalog-caption { position: absolute; z-index: 2; left: 24px; bottom: 20px; color: #68787c; font-size: 9px; letter-spacing: .08em; }
.product-detail-panel { display: flex; flex-direction: column; justify-content: center; padding: 62px 50px; background: #edf1ed; }
.product-detail-panel > p:first-child { margin: 0 0 16px; color: #4f8589; font-size: 9px; font-weight: 700; letter-spacing: .2em; }
.product-detail-panel h3 { margin: 0; font-size: clamp(36px, 4vw, 55px); font-weight: 500; line-height: 1.04; letter-spacing: -.045em; }
.detail-rule { width: 58px; height: 2px; margin: 28px 0; background: var(--teal); }
.detail-intro { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.product-features { list-style: none; margin: 38px 0 0; padding: 0; border-top: 1px solid var(--line); }
.product-features li { display: grid; grid-template-columns: 35px 1fr; gap: 12px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.product-features > li > span { color: #479c99; font-size: 9px; letter-spacing: .1em; }
.product-features strong, .product-features small { display: block; }
.product-features strong { font-size: 13px; font-weight: 650; }
.product-features small { margin-top: 3px; color: var(--muted); font-size: 11px; line-height: 1.45; }
.product-note { display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: center; margin-top: 24px; padding: 19px 24px; border: 1px solid var(--line); }
.product-note p { margin: 0; color: var(--muted); font-size: 12px; }
.product-note a { color: #1e6268; font-size: 11px; font-weight: 700; white-space: nowrap; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 5px rgba(168,239,97,.18); }

.approach { color: var(--white); background: #0b2934; }
.approach-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 110px; }
.approach-copy { position: sticky; top: 130px; align-self: start; }
.approach-copy h2 { color: var(--white); }
.approach-copy > p:not(.section-index) { max-width: 430px; margin: 28px 0 35px; color: rgba(255,255,255,.55); }
.button-light { background: transparent; color: var(--lime); }
.button-light:hover { background: var(--lime); color: var(--ink); }
.process-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.16); }
.process-list li { display: grid; grid-template-columns: 52px 1fr; gap: 22px; padding: 33px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.process-list > li > span { color: var(--teal-bright); font-size: 10px; letter-spacing: .12em; }
.process-list h3 { margin: 0 0 8px; font-size: 21px; font-weight: 500; }
.process-list p { margin: 0; color: rgba(255,255,255,.5); font-size: 13px; }

.about { background: var(--paper-warm); }
.about-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 100px; align-items: center; }
.about-visual { position: relative; min-height: 510px; color: #4aafb0; border: 1px solid var(--line); background: linear-gradient(145deg, rgba(72,201,192,.08), transparent); overflow: hidden; }
.about-visual svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.city-label { position: absolute; z-index: 2; top: 28px; left: 30px; color: #52686e; font-size: 10px; letter-spacing: .16em; line-height: 1.8; }
.map-word { position: absolute; right: -8px; bottom: 10px; color: rgba(6,20,29,.08); font-size: clamp(62px, 7vw, 104px); font-weight: 800; letter-spacing: -.05em; }
.about-copy h2 { font-size: clamp(40px, 4.8vw, 65px); }
.about-lead { margin: 30px 0 20px; font-size: 18px; font-weight: 500; line-height: 1.7; }
.about-copy > p:not(.section-index):not(.about-lead) { color: var(--muted); }
.company-facts { margin: 36px 0 0; border-top: 1px solid var(--line); }
.company-facts div { display: grid; grid-template-columns: 110px 1fr; padding: 13px 0; border-bottom: 1px solid var(--line); }
.company-facts dt { color: var(--muted); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.company-facts dd { margin: 0; font-size: 12px; font-weight: 600; text-align: right; overflow-wrap: anywhere; }
.company-facts a { color: #1b7274; }

.contact { position: relative; overflow: hidden; color: var(--white); background: var(--ink); }
.contact-pattern { z-index: 0; mask-image: radial-gradient(circle at 80% 50%, #000, transparent 65%); }
.contact::after { content: ""; position: absolute; right: -140px; top: 50%; width: 500px; height: 500px; border: 1px solid rgba(72,201,192,.2); border-radius: 50%; transform: translateY(-50%); box-shadow: 0 0 0 80px rgba(72,201,192,.025), 0 0 0 160px rgba(72,201,192,.018); }
.contact-inner { position: relative; z-index: 2; padding-top: 125px; padding-bottom: 70px; }
.contact h2 { max-width: 850px; font-size: clamp(54px, 7.2vw, 100px); }
.contact-inner > p:not(.section-index) { max-width: 550px; margin: 26px 0 48px; color: rgba(255,255,255,.54); }
.contact-email { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 26px 0; border-top: 1px solid rgba(255,255,255,.18); border-bottom: 1px solid rgba(255,255,255,.18); color: var(--lime); font-size: clamp(20px, 3vw, 38px); letter-spacing: -.02em; }
.contact-email i { font-style: normal; transition: transform .35s var(--ease); }
.contact-email:hover i { transform: translate(6px,-6px); }
.contact-meta { display: flex; justify-content: space-between; margin-top: 50px; color: rgba(255,255,255,.35); font-size: 9px; letter-spacing: .17em; }
.site-footer { color: rgba(255,255,255,.55); background: #030d13; }
.footer-inner { min-height: 112px; display: grid; grid-template-columns: 1fr auto 1fr; gap: 30px; align-items: center; font-size: 10px; }
.footer-brand { display: flex; align-items: center; gap: 17px; }
.footer-brand strong { color: var(--white); letter-spacing: .15em; }
.footer-brand span { max-width: 250px; line-height: 1.35; }
.footer-inner p { margin: 0; text-align: center; }
.footer-inner > a { justify-self: end; color: var(--teal-bright); }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: var(--delay, 0ms); }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1040px) {
  .main-nav { display: none; }
  .nav-actions { margin-left: auto; }
  .hero-layout { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: clamp(55px, 7vw, 76px); }
  .approach-layout { gap: 60px; }
  .about-layout { gap: 55px; }
}

@media (max-width: 820px) {
  .shell { width: min(calc(100% - 32px), var(--max)); }
  .nav-wrap { height: 68px; }
  .brand-copy small { display: none; }
  .nav-actions .button { display: none; }
  .menu-button { position: relative; z-index: 102; display: flex; width: 36px; height: 36px; flex-direction: column; justify-content: center; gap: 5px; padding: 7px; border: 0; background: transparent; cursor: pointer; }
  .menu-button span:not(.sr-only) { width: 100%; height: 1px; background: var(--white); transition: .3s; }
  .menu-open .menu-button span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-open .menu-button span:nth-child(2) { opacity: 0; }
  .menu-open .menu-button span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .main-nav { position: fixed; z-index: 101; inset: 0; display: flex; flex-direction: column; justify-content: center; gap: 28px; background: var(--ink); opacity: 0; pointer-events: none; transition: opacity .35s; }
  .main-nav a { color: var(--white); font-size: 28px; }
  .menu-open .main-nav { opacity: 1; pointer-events: auto; }
  .hero { min-height: 960px; height: auto; }
  .hero-layout { grid-template-columns: 1fr; padding-top: 135px; padding-bottom: 80px; }
  .hero-copy { max-width: 680px; }
  .hero-visual { min-height: 480px; height: 55vw; }
  .product-stage { inset: 0; }
  .scroll-cue { display: none; }
  .intro-strip .shell { padding: 25px 0; flex-wrap: wrap; gap: 17px; }
  .intro-strip p { width: 100%; }
  .section { padding: 95px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 24px; }
  .product-showcase { grid-template-columns: 1fr; }
  .product-photo-panel { border-right: 0; border-bottom: 1px solid var(--line); }
  .product-photo-panel img { min-height: 520px; }
  .product-detail-panel { padding: 50px 38px; }
  .approach-layout { grid-template-columns: 1fr; }
  .approach-copy { position: static; }
  .process-list { margin-top: 24px; }
  .about-layout { grid-template-columns: 1fr; }
  .about-visual { min-height: 420px; order: 2; }
  .footer-inner { grid-template-columns: 1fr; padding: 32px 0; text-align: center; }
  .footer-brand { justify-content: center; flex-direction: column; gap: 6px; }
  .footer-inner > a { justify-self: center; }
}

@media (max-width: 520px) {
  .hero { min-height: 880px; }
  .hero-layout { padding-top: 115px; gap: 22px; }
  .eyebrow { margin-bottom: 22px; }
  .hero h1 { font-size: 49px; }
  .hero-lead { margin-top: 24px; font-size: 15px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 20px; }
  .hero-meta { margin-top: 36px; gap: 6px; }
  .hero-meta span { font-size: 9px; }
  .hero-visual { min-height: 350px; height: 100vw; }
  .stage-label { top: 13px; left: 16px; }
  .adapter-photo { left: 1%; top: 2%; width: 105%; height: 103%; }
  .spec-two { display: none; }
  .intro-strip p { font-size: 17px; }
  .section { padding: 75px 0; }
  .section h2 { font-size: 40px; }
  .product-showcase { min-height: 0; margin-top: 45px; }
  .product-photo-panel img { min-height: 340px; object-fit: cover; }
  .product-detail-panel { padding: 38px 25px; }
  .product-detail-panel h3 { font-size: 38px; }
  .product-note { grid-template-columns: auto 1fr; }
  .product-note a { grid-column: 2; }
  .process-list li { grid-template-columns: 40px 1fr; gap: 13px; }
  .about-visual { min-height: 330px; }
  .company-facts div { grid-template-columns: 80px 1fr; }
  .contact-inner { padding-top: 85px; }
  .contact h2 { font-size: 49px; }
  .contact-email { font-size: 17px; }
  .contact-email i { display: none; }
  .contact-meta { flex-direction: column; gap: 8px; }
}

@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; }
}