:root {
  --ink: #071018;
  --ink-soft: #17232d;
  --paper: #f2f4f0;
  --paper-2: #e7ebe6;
  --line: rgba(7, 16, 24, 0.14);
  --line-light: rgba(255, 255, 255, 0.16);
  --cyan: #48e3ff;
  --acid: #c8ff3d;
  --white: #f8fbff;
  --max: 1280px;
  --pad: clamp(22px, 4vw, 64px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: Inter, "SF Pro Display", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.nav-open, body.modal-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.container { width: min(100%, calc(var(--max) + var(--pad) * 2)); margin-inline: auto; padding-inline: var(--pad); }
.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: 100; top: -60px; left: 20px; background: var(--acid); color: var(--ink); padding: 12px 18px; transition: top .2s; }
.skip-link:focus { top: 20px; }

.site-header {
  position: fixed; z-index: 30; top: 0; left: 0; right: 0;
  height: 82px; padding: 0 var(--pad); display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid transparent; transition: background .25s, border-color .25s, height .25s;
}
.site-header.scrolled { height: 68px; background: rgba(5, 13, 20, .86); border-color: var(--line-light); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: center; gap: 12px; position: relative; z-index: 32; }
.brand-logo { width: 42px; height: 36px; object-fit: contain; flex: 0 0 auto; }
.brand-copy { display: grid; gap: 1px; line-height: 1; }
.brand-copy strong { font-size: 15px; letter-spacing: .16em; }
.brand-copy span { font-size: 10px; letter-spacing: .36em; opacity: .65; }
.site-nav { display: flex; align-items: center; gap: clamp(16px, 2vw, 34px); font-size: 13px; color: rgba(255,255,255,.74); }
.site-nav a { transition: color .2s; }
.site-nav a:hover { color: white; }
.site-nav .nav-cta { padding: 10px 16px; border: 1px solid rgba(255,255,255,.35); border-radius: 999px; color: white; }
.nav-toggle { display: none; border: 0; background: none; width: 42px; height: 42px; padding: 10px; position: relative; z-index: 32; }
.nav-toggle span:not(.sr-only) { display: block; width: 22px; height: 1px; background: white; position: absolute; left: 10px; top: 16px; transition: transform .2s, top .2s; }
.nav-toggle span:nth-child(2) { top: 25px; }

.hero { min-height: 100svh; position: relative; display: flex; align-items: center; isolation: isolate; overflow: hidden; }
.hero-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 54% center; z-index: -3; }
.hero-shade { position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, rgba(4,11,17,.93) 0%, rgba(4,11,17,.7) 43%, rgba(4,11,17,.1) 75%), linear-gradient(0deg, rgba(4,11,17,.78) 0%, transparent 42%); }
.hero-grid { position: absolute; inset: 0; z-index: -1; opacity: .15; background-image: linear-gradient(rgba(255,255,255,.15) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.15) 1px, transparent 1px); background-size: 80px 80px; mask-image: linear-gradient(90deg, black, transparent 70%); }
.hero-content { padding-top: 120px; padding-bottom: 130px; }
.eyebrow { margin: 0 0 24px; color: rgba(255,255,255,.65); font: 600 11px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .18em; display: flex; align-items: center; gap: 10px; }
.eyebrow span { width: 24px; height: 1px; background: var(--acid); }
.eyebrow.dark { color: #52616a; }
.hero h1 { margin: 0; max-width: 850px; font-size: clamp(64px, 9.2vw, 138px); line-height: .88; letter-spacing: -.075em; font-weight: 520; }
.hero h1 em { font-style: normal; color: var(--acid); }
.hero-lead { margin: 38px 0 0; max-width: 670px; color: rgba(255,255,255,.68); font-size: clamp(16px, 1.5vw, 20px); line-height: 1.8; }
.hero-actions { display: flex; gap: 12px; margin-top: 40px; flex-wrap: wrap; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 18px; padding: 0 20px; border: 0; border-radius: 999px; font-size: 13px; font-weight: 620; cursor: pointer; transition: transform .2s, background .2s, color .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--acid); color: var(--ink); }
.button-ghost { border: 1px solid rgba(255,255,255,.3); color: white; backdrop-filter: blur(8px); }
.button-light { background: var(--white); color: var(--ink); }
.hero-foot { position: absolute; left: 50%; bottom: 30px; transform: translateX(-50%); display: flex; align-items: center; gap: 24px; color: rgba(255,255,255,.54); font-size: 11px; letter-spacing: .09em; }
.hero-foot span { padding-right: 24px; border-right: 1px solid var(--line-light); }

.signal-strip { background: var(--acid); color: var(--ink); padding: 0 0 10px; }
.signal-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.signal-grid div { padding: 34px 22px; border-right: 1px solid rgba(7,16,24,.15); }
.signal-grid div:first-child { border-left: 1px solid rgba(7,16,24,.15); }
.signal-grid strong { display: block; font-size: clamp(30px, 4vw, 52px); line-height: 1; letter-spacing: -.055em; }
.signal-grid span { display: block; margin-top: 9px; font-size: 12px; opacity: .62; }

.section { padding: clamp(100px, 13vw, 190px) 0; }
.section-heading { max-width: 850px; }
.section-heading h2 { margin: 0; font-size: clamp(48px, 7.3vw, 104px); line-height: .98; letter-spacing: -.065em; font-weight: 520; }
.section-heading > p:not(.eyebrow) { margin: 34px 0 0; max-width: 680px; font-size: clamp(16px, 1.6vw, 21px); line-height: 1.75; color: #617078; }
.platform { background: var(--paper); color: var(--ink); }
.platform-stage { position: relative; margin-top: 100px; min-height: 690px; }
.platform-stage > img { width: 76%; height: 590px; object-fit: cover; margin-left: auto; border-radius: 2px; }
.image-label { position: absolute; right: 14px; top: 14px; padding: 7px 10px; color: rgba(255,255,255,.7); background: rgba(6,16,25,.5); backdrop-filter: blur(10px); font: 10px ui-monospace, monospace; letter-spacing: .08em; }
.platform-card { position: absolute; width: min(340px, 28vw); padding: 24px; background: rgba(248,250,247,.94); border: 1px solid rgba(7,16,24,.12); backdrop-filter: blur(14px); box-shadow: 0 24px 70px rgba(7,16,24,.12); }
.platform-card > span { font: 11px ui-monospace, monospace; color: #718087; }
.platform-card strong { display: block; margin-top: 30px; font-size: 21px; letter-spacing: -.025em; }
.platform-card p { margin: 10px 0 0; font-size: 13px; line-height: 1.6; color: #67747a; }
.card-a { top: 48px; left: 0; }
.card-b { top: 260px; left: 3%; }
.card-c { bottom: 0; right: 8%; }
.product-spectrum { margin-top: 110px; display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: end; border-top: 1px solid var(--line); padding-top: 54px; }
.mono { font: 11px ui-monospace, monospace; letter-spacing: .16em; color: #6a7880; }
.spectrum-copy h3 { margin: 16px 0; font-size: clamp(30px, 3.4vw, 48px); line-height: 1.05; letter-spacing: -.045em; }
.spectrum-copy p { margin: 0; color: #69767c; line-height: 1.7; font-size: 14px; }
.spectrum-line { display: grid; grid-template-columns: repeat(5, 1fr); position: relative; }
.spectrum-line::before { content: ""; position: absolute; left: 0; right: 0; top: 7px; height: 1px; background: #abb5b3; }
.spectrum-line div { position: relative; padding: 30px 10px 0 0; }
.spectrum-line i { position: absolute; top: 3px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--paper); border: 2px solid #7d898b; }
.spectrum-line .active i { width: 15px; height: 15px; top: 0; background: var(--ink); border: 4px solid var(--acid); }
.spectrum-line strong, .spectrum-line small { display: block; }
.spectrum-line strong { font-size: 16px; }
.spectrum-line small { margin-top: 7px; color: #7b868a; }

.technology { background: #07131c; color: white; position: relative; overflow: hidden; }
.technology::before { content: ""; position: absolute; width: 760px; height: 760px; left: -300px; top: 15%; border-radius: 50%; background: radial-gradient(circle, rgba(72,227,255,.12), transparent 66%); }
.tech-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(60px, 10vw, 150px); align-items: start; }
.tech-heading { position: sticky; top: 140px; }
.tech-heading h2 { font-size: clamp(48px, 5.8vw, 84px); }
.tech-heading > p:not(.eyebrow) { color: rgba(255,255,255,.52); }
.tech-stack { border-top: 1px solid var(--line-light); }
.tech-item { min-height: 174px; display: grid; grid-template-columns: 50px 1fr auto; gap: 20px; align-items: center; border-bottom: 1px solid var(--line-light); transition: background .25s, padding .25s; }
.tech-item:hover { background: rgba(255,255,255,.035); padding-inline: 18px; }
.tech-index { color: var(--acid); font: 11px ui-monospace, monospace; }
.tech-item h3 { margin: 0; font-size: clamp(27px, 3vw, 40px); letter-spacing: -.04em; }
.tech-item p { margin: 9px 0 0; max-width: 460px; color: rgba(255,255,255,.5); font-size: 13px; line-height: 1.6; }
.tech-tag { font: 9px ui-monospace, monospace; letter-spacing: .14em; color: rgba(255,255,255,.34); }

.ip { background: var(--acid); color: var(--ink); }
.ip-intro { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(50px, 8vw, 120px); align-items: end; }
.ip .section-heading h2 { font-size: clamp(50px, 6vw, 86px); }
.ip-intro > p { margin: 0; color: rgba(7,16,24,.62); font-size: clamp(16px, 1.5vw, 20px); line-height: 1.75; }
.ip-metrics { margin-top: 80px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(7,16,24,.22); border-left: 1px solid rgba(7,16,24,.22); }
.ip-metrics div { padding: 36px 28px; border-right: 1px solid rgba(7,16,24,.22); border-bottom: 1px solid rgba(7,16,24,.22); }
.ip-metrics strong, .ip-metrics span { display: block; }
.ip-metrics strong { font-size: clamp(42px, 5vw, 72px); line-height: 1; letter-spacing: -.06em; }
.ip-metrics span { margin-top: 12px; font-size: 12px; color: rgba(7,16,24,.58); }
.ip-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-left: 1px solid rgba(7,16,24,.22); }
.ip-grid article { min-height: 270px; padding: 30px 26px; border-right: 1px solid rgba(7,16,24,.22); border-bottom: 1px solid rgba(7,16,24,.22); }
.ip-grid article > span { font: 11px ui-monospace, monospace; color: rgba(7,16,24,.48); }
.ip-grid h3 { margin: 70px 0 14px; font-size: clamp(22px, 2vw, 30px); line-height: 1.15; letter-spacing: -.04em; }
.ip-grid p { margin: 0; color: rgba(7,16,24,.6); font-size: 13px; line-height: 1.7; }

.applications { background: #e9ede8; color: var(--ink); }
.section-heading.split { max-width: none; display: grid; grid-template-columns: 1.4fr .6fr; gap: 70px; align-items: end; }
.section-heading.split h2 { font-size: clamp(48px, 6.5vw, 94px); }
.section-heading.split > p { margin: 0; }
.application-grid { margin-top: 80px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.application-card { min-height: 300px; padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; justify-content: flex-end; transition: background .25s; }
.application-card:hover { background: #f4f6f2; }
.application-card > span, .feature-copy > span { margin-bottom: auto; color: #69777d; font: 10px ui-monospace, monospace; letter-spacing: .1em; }
.application-card h3 { margin: 24px 0 10px; font-size: clamp(24px, 2.4vw, 34px); line-height: 1.05; letter-spacing: -.04em; }
.application-card p { margin: 0; color: #6a767c; font-size: 13px; line-height: 1.65; }
.application-card.feature { grid-column: span 2; grid-row: span 2; min-height: 600px; padding: 0; position: relative; overflow: hidden; color: white; }
.application-card.feature > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.application-card.feature:hover > img { transform: scale(1.025); }
.application-card.feature::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(3,10,16,.88), rgba(3,10,16,0) 70%); }
.feature-copy { position: relative; z-index: 1; padding: 40px; margin-top: auto; }
.feature-copy > span { color: var(--acid); }
.feature-copy h3 { font-size: clamp(42px, 5vw, 68px); }
.feature-copy p { color: rgba(255,255,255,.68); max-width: 580px; font-size: 15px; }
.application-card.feature > small { position: absolute; z-index: 2; top: 20px; right: 20px; color: rgba(255,255,255,.55); font: 10px ui-monospace, monospace; }

.about { background: #09141d; }
.about-intro { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(60px, 9vw, 130px); align-items: end; }
.about .section-heading h2 { font-size: clamp(48px, 5.4vw, 78px); }
.about-copy > p { margin: 0 0 22px; color: rgba(255,255,255,.55); font-size: 16px; line-height: 1.75; }
.about-facts { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 42px; border-top: 1px solid var(--line-light); }
.about-facts div { padding: 24px 20px 0 0; }
.about-facts strong, .about-facts span { display: block; }
.about-facts strong { font-size: 23px; }
.about-facts span { margin-top: 6px; color: rgba(255,255,255,.42); font-size: 12px; }
.about-scene { margin: 90px 0 0; position: relative; overflow: hidden; border: 1px solid var(--line-light); }
.about-scene img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.about-scene::after { content: ""; position: absolute; inset: 55% 0 0; background: linear-gradient(0deg, rgba(4,11,17,.82), transparent); pointer-events: none; }
.about-scene figcaption { position: absolute; z-index: 1; left: 32px; right: 32px; bottom: 28px; display: grid; grid-template-columns: auto 1fr auto; align-items: end; gap: 18px; }
.about-scene figcaption span, .about-scene figcaption small { font: 10px ui-monospace, monospace; letter-spacing: .14em; color: rgba(255,255,255,.6); }
.about-scene figcaption strong { font-size: clamp(30px, 4vw, 54px); letter-spacing: -.045em; }

.cooperation { padding: clamp(100px, 14vw, 190px) 0; background: var(--acid); color: var(--ink); }
.cooperation-inner { text-align: center; display: grid; justify-items: center; }
.cooperation .eyebrow { color: rgba(7,16,24,.6); }
.cooperation .eyebrow span { background: var(--ink); }
.cooperation h2 { margin: 0; max-width: 1050px; font-size: clamp(54px, 8.4vw, 118px); line-height: .92; letter-spacing: -.07em; font-weight: 520; }
.cooperation p:not(.eyebrow) { margin: 30px 0 36px; color: rgba(7,16,24,.62); }
.site-footer { background: #050b10; padding: 70px 0 30px; }
.footer-main { display: flex; justify-content: space-between; gap: 60px; padding-bottom: 70px; }
.footer-brand { margin-bottom: 22px; }
.footer-main p { margin: 0; color: rgba(255,255,255,.38); font-size: 12px; line-height: 1.7; }
.footer-contact { display: grid; align-content: start; gap: 12px; max-width: 270px; }
.footer-contact > span { color: rgba(255,255,255,.32); font: 10px ui-monospace, monospace; letter-spacing: .16em; }
.footer-contact a { font-size: 15px; color: var(--acid); }
.footer-contact address { font-style: normal; color: rgba(255,255,255,.48); font-size: 12px; line-height: 1.7; }
.footer-links { display: grid; grid-template-columns: repeat(2, 120px); gap: 18px 30px; color: rgba(255,255,255,.6); font-size: 12px; align-content: start; }
.footer-links a:hover { color: white; }
.footer-legal { border-top: 1px solid var(--line-light); padding-top: 24px; display: flex; justify-content: space-between; gap: 30px; color: rgba(255,255,255,.3); font-size: 10px; }

.contact-dialog { width: min(760px, calc(100% - 32px)); max-height: calc(100svh - 32px); margin: auto; padding: 0; color: var(--white); background: #09141d; border: 1px solid rgba(255,255,255,.18); border-radius: 3px; box-shadow: 0 40px 120px rgba(0,0,0,.55); }
.contact-dialog::backdrop { background: rgba(2,8,13,.78); backdrop-filter: blur(10px); }
.contact-dialog-head { display: flex; justify-content: space-between; gap: 30px; padding: 34px 36px 24px; border-bottom: 1px solid var(--line-light); }
.contact-dialog-head span { color: var(--acid); font: 10px ui-monospace, monospace; letter-spacing: .16em; }
.contact-dialog-head h2 { margin: 10px 0 0; font-size: clamp(34px, 5vw, 54px); line-height: 1; letter-spacing: -.05em; }
.dialog-close { width: 42px; height: 42px; border: 1px solid var(--line-light); border-radius: 50%; color: white; background: transparent; font-size: 26px; line-height: 1; cursor: pointer; }
.contact-dialog-lead { margin: 0; padding: 24px 36px 0; color: rgba(255,255,255,.56); font-size: 13px; line-height: 1.7; }
.contact-dialog-lead a { color: var(--acid); }
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding: 28px 36px 36px; }
.contact-form label { display: grid; gap: 9px; }
.contact-form label > span { color: rgba(255,255,255,.58); font-size: 11px; }
.contact-form input, .contact-form textarea { width: 100%; border: 1px solid rgba(255,255,255,.18); border-radius: 0; outline: 0; background: rgba(255,255,255,.055); color: white; padding: 13px 14px; font: inherit; transition: border-color .2s, background .2s; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--acid); background: rgba(255,255,255,.08); }
.contact-form textarea { resize: vertical; min-height: 130px; }
.form-wide { grid-column: 1 / -1; }
.form-actions { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.form-actions > span { color: rgba(255,255,255,.38); font-size: 10px; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .75s ease, transform .75s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 960px) {
  .site-header { height: 70px; }
  .nav-toggle { display: block; }
  .site-nav { position: fixed; inset: 0; padding: 120px var(--pad) 40px; background: rgba(5,13,20,.98); display: flex; flex-direction: column; align-items: flex-start; gap: 0; transform: translateY(-100%); transition: transform .35s ease; }
  .site-nav.open { transform: none; }
  .site-nav a { width: 100%; padding: 20px 0; border-bottom: 1px solid var(--line-light); font-size: 24px; }
  .site-nav .nav-cta { border: 0; border-radius: 0; }
  .nav-open .nav-toggle span:first-child { top: 21px; transform: rotate(45deg); }
  .nav-open .nav-toggle span:nth-child(2) { top: 21px; transform: rotate(-45deg); }
  .hero-foot span:nth-child(3), .hero-foot span:nth-child(4) { display: none; }
  .signal-grid { grid-template-columns: repeat(2, 1fr); }
  .signal-grid div:nth-child(3) { border-left: 1px solid rgba(7,16,24,.15); }
  .platform-stage > img { width: 90%; height: 530px; }
  .platform-card { width: 300px; }
  .card-c { right: 2%; }
  .product-spectrum, .tech-layout, .about-intro, .ip-intro { grid-template-columns: 1fr; }
  .tech-heading { position: static; }
  .section-heading.split { grid-template-columns: 1fr; gap: 30px; }
  .application-grid { grid-template-columns: repeat(2, 1fr); }
  .application-card.feature { grid-column: span 2; }
  .ip-grid { grid-template-columns: repeat(2, 1fr); }
  .about-scene { margin-top: 60px; }
}

@media (max-width: 620px) {
  .hero { min-height: 760px; }
  .hero-media { object-position: 61% center; }
  .hero-shade { background: linear-gradient(90deg, rgba(4,11,17,.9), rgba(4,11,17,.3)), linear-gradient(0deg, rgba(4,11,17,.88), transparent 55%); }
  .hero h1 { font-size: clamp(58px, 19vw, 88px); max-width: 95%; }
  .hero-lead br { display: none; }
  .hero-foot { gap: 12px; bottom: 20px; }
  .hero-foot span { padding-right: 12px; }
  .signal-grid strong { font-size: 34px; }
  .signal-grid div { padding: 26px 14px; }
  .section { padding: 94px 0; }
  .section-heading h2 { font-size: 49px; }
  .platform-stage { margin-top: 60px; min-height: auto; display: grid; gap: 10px; }
  .platform-stage > img { width: 100%; height: 420px; }
  .platform-card { position: static; width: 100%; box-shadow: none; }
  .image-label { top: 12px; right: 12px; }
  .product-spectrum { margin-top: 80px; gap: 46px; }
  .spectrum-line { grid-template-columns: repeat(2, 1fr); gap: 30px 0; }
  .spectrum-line::before { display: none; }
  .spectrum-line div { border-top: 1px solid #aeb8b5; }
  .spectrum-line i, .spectrum-line .active i { top: -5px; }
  .ip-metrics, .ip-grid { grid-template-columns: 1fr; }
  .ip-grid article { min-height: 220px; }
  .ip-grid h3 { margin-top: 45px; }
  .tech-item { grid-template-columns: 36px 1fr; min-height: 155px; }
  .tech-tag { display: none; }
  .application-grid { grid-template-columns: 1fr; }
  .application-card.feature { grid-column: auto; min-height: 520px; }
  .application-card { min-height: 240px; }
  .feature-copy { padding: 28px; }
  .about-scene { margin-top: 52px; }
  .about-scene figcaption { left: 18px; right: 18px; bottom: 16px; grid-template-columns: 1fr auto; }
  .about-scene figcaption span { display: none; }
  .about-scene figcaption strong { font-size: 28px; }
  .about-facts { grid-template-columns: 1fr; }
  .footer-main, .footer-legal { flex-direction: column; }
  .footer-legal { gap: 12px; }
  .contact-dialog-head { padding: 26px 22px 20px; }
  .contact-dialog-lead { padding: 20px 22px 0; }
  .contact-form { grid-template-columns: 1fr; padding: 24px 22px 28px; }
  .contact-form label, .form-wide { grid-column: 1; }
  .form-actions { align-items: stretch; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}