:root {
  color-scheme: dark;
  --ink: #e9f3ff;
  --muted: #9caec3;
  --muted-bright: #c5d2df;
  --night: #07111f;
  --night-soft: #0d1c2f;
  --card: rgba(16, 32, 53, 0.8);
  --line: rgba(170, 203, 236, 0.16);
  --cyan: #6fe3ff;
  --blue: #4c8dff;
  --mint: #87f1dc;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--night);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.page-glow { position: fixed; z-index: -1; width: 44vw; height: 44vw; border-radius: 999px; filter: blur(100px); pointer-events: none; opacity: .18; }
.page-glow-one { top: -22vw; right: -12vw; background: #2388ff; }
.page-glow-two { top: 48vh; left: -28vw; background: #00d2c6; opacity: .1; }
.shell { width: min(1160px, calc(100% - 56px)); margin: 0 auto; }

.site-header { position: relative; z-index: 5; border-bottom: 1px solid rgba(171, 202, 232, .1); background: rgba(7, 17, 31, .72); backdrop-filter: blur(18px); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 82px; }
.brand, .footer-brand { display: inline-flex; gap: 12px; align-items: center; }
.brand-mark { width: 42px; height: 42px; overflow: hidden; border-radius: 13px; box-shadow: 0 0 26px rgba(80, 180, 255, .24); }
.brand-mark img { width: 100%; height: 100%; object-fit: cover; }
.brand strong, .footer-brand strong { display: block; font-size: 15px; letter-spacing: .08em; }
.brand small, .footer-brand small { display: block; margin-top: -2px; color: var(--muted); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: 30px; color: var(--muted-bright); font-size: 13px; }
.main-nav a { transition: color .2s ease; }
.main-nav a:hover { color: var(--cyan); }
.main-nav .nav-cta { padding: 10px 15px; border: 1px solid var(--line); border-radius: 99px; color: var(--ink); }
.main-nav .nav-cta:hover { border-color: rgba(111, 227, 255, .5); background: rgba(111, 227, 255, .08); }

.hero { display: grid; grid-template-columns: minmax(0, 1.03fr) minmax(390px, .97fr); align-items: center; gap: 64px; min-height: 720px; padding-top: 62px; padding-bottom: 84px; }
.hero-copy { position: relative; z-index: 2; }
.pill { display: inline-flex; align-items: center; gap: 9px; padding: 7px 12px; border: 1px solid rgba(111, 227, 255, .2); border-radius: 99px; color: var(--muted-bright); background: rgba(104, 190, 255, .06); font-size: 12px; }
.pulse-dot { width: 6px; height: 6px; border-radius: 99px; background: var(--mint); box-shadow: 0 0 0 5px rgba(135, 241, 220, .12); }
.kicker { margin: 0 0 14px; color: var(--cyan); font-size: 11px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; }
.hero .kicker { margin-top: 42px; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 650px; margin-bottom: 26px; font-size: clamp(3.4rem, 7vw, 6.2rem); font-weight: 600; letter-spacing: -.075em; line-height: .99; }
h1 span, h2 span { color: var(--cyan); }
.hero-lede { max-width: 580px; margin-bottom: 32px; color: var(--muted-bright); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.button { display: inline-flex; align-items: center; gap: 13px; min-height: 50px; padding: 0 21px; border: 1px solid transparent; border-radius: 99px; font-size: 13px; font-weight: 700; letter-spacing: .02em; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #061222; background: var(--cyan); box-shadow: 0 12px 28px rgba(111, 227, 255, .18); }
.button-primary:hover { background: #a1efff; }
.button-quiet { color: var(--muted-bright); border-color: var(--line); }
.button-quiet:hover { border-color: rgba(111, 227, 255, .48); color: var(--ink); }
.hero-proof { display: flex; gap: 26px; margin-top: 68px; }
.hero-proof div { padding-left: 13px; border-left: 1px solid rgba(111, 227, 255, .4); }
.hero-proof strong, .hero-proof span { display: block; }
.hero-proof strong { font-size: 13px; font-weight: 600; }
.hero-proof span { margin-top: 3px; color: var(--muted); font-size: 11px; }

.hero-art { position: relative; min-height: 540px; display: grid; place-items: center; }
.orbit { position: absolute; border: 1px solid rgba(111, 227, 255, .18); border-radius: 50%; transform: rotate(-22deg); }
.orbit::after { content: ""; position: absolute; top: -4px; left: 27%; width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 18px var(--cyan); }
.orbit-a { width: 440px; height: 230px; }
.orbit-b { width: 510px; height: 300px; opacity: .55; transform: rotate(20deg); }
.hero-device { position: relative; z-index: 1; width: min(330px, 75%); aspect-ratio: .78; padding: 16px; border: 1px solid rgba(184, 219, 255, .25); border-radius: 32px; background: linear-gradient(145deg, rgba(35, 66, 100, .86), rgba(8, 18, 34, .94)); box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.1); transform: rotate(5deg); }
.hero-device::before { content: ""; display: block; width: 34%; height: 5px; margin: 0 auto 19px; border-radius: 99px; background: rgba(255,255,255,.16); }
.device-topline { display: flex; align-items: center; justify-content: space-between; margin: 0 6px 19px; color: var(--muted-bright); font-size: 10px; letter-spacing: .06em; }
.status-light { display: inline-flex; align-items: center; gap: 5px; color: var(--mint); }
.status-light i { width: 5px; height: 5px; border-radius: 50%; background: var(--mint); }
.hero-device img { width: 100%; border-radius: 23px; opacity: .96; box-shadow: 0 16px 36px rgba(0,0,0,.28); }
.device-caption { padding: 16px 7px 3px; }
.device-caption span, .device-caption strong { display: block; }
.device-caption span { color: var(--muted); font-size: 11px; }
.device-caption strong { margin-top: 3px; font-size: 16px; font-weight: 500; }
.floating-card { position: absolute; z-index: 2; display: flex; align-items: center; gap: 10px; padding: 11px 14px; border: 1px solid rgba(181, 221, 255, .2); border-radius: 15px; background: rgba(14, 31, 51, .86); box-shadow: 0 18px 38px rgba(0,0,0,.22); backdrop-filter: blur(18px); }
.floating-card-top { top: 81px; right: 3%; }
.floating-card-bottom { right: 0; bottom: 56px; }
.floating-card small, .floating-card strong { display: block; }
.floating-card small { color: var(--muted); font-size: 10px; }
.floating-card strong { margin-top: 2px; font-size: 11px; font-weight: 600; }
.mini-icon { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 9px; background: rgba(111, 227, 255, .11); color: var(--cyan); font-size: 20px; }
.icon-wave { color: var(--mint); background: rgba(135, 241, 220, .1); }

.section { padding-top: 122px; padding-bottom: 124px; }
.section-heading { max-width: 690px; margin-bottom: 52px; }
.section-heading h2, .brand-story h2, .app-panel h2, .final-cta h2 { margin-bottom: 21px; font-size: clamp(2.25rem, 4.4vw, 4rem); font-weight: 500; letter-spacing: -.065em; line-height: 1.08; }
.section-heading > p:last-child, .brand-lede, .app-panel-copy > p:not(.kicker) { max-width: 560px; color: var(--muted); font-size: 15px; line-height: 1.85; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.feature-card { position: relative; min-height: 275px; padding: 30px; overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(150deg, rgba(17, 37, 61, .78), rgba(11, 24, 42, .68)); box-shadow: 0 14px 42px rgba(0,0,0,.12); }
.feature-card::after { content: ""; position: absolute; right: -45px; bottom: -70px; width: 170px; height: 170px; border: 1px solid rgba(111, 227, 255, .09); border-radius: 50%; }
.feature-card:hover { border-color: rgba(111, 227, 255, .32); }
.feature-card-large { grid-column: span 2; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 26px; min-height: 210px; background: linear-gradient(110deg, rgba(19, 51, 79, .9), rgba(13, 29, 49, .78)); }
.feature-card-wide { grid-column: span 2; display: flex; justify-content: space-between; align-items: center; min-height: 240px; }
.feature-icon { display: grid; place-items: center; width: 47px; height: 47px; margin-bottom: 24px; border: 1px solid rgba(111, 227, 255, .23); border-radius: 14px; color: var(--cyan); background: rgba(111, 227, 255, .08); font-size: 25px; }
.feature-card-large .feature-icon { margin-bottom: 0; }
.icon-grid { grid-template-columns: repeat(2, 6px); grid-template-rows: repeat(2, 6px); gap: 4px; }
.icon-grid i { width: 6px; height: 6px; border-radius: 2px; background: currentColor; box-shadow: 0 0 8px rgba(111, 227, 255, .5); }
.icon-person { color: var(--mint); border-color: rgba(135,241,220,.22); background: rgba(135,241,220,.08); }
.icon-moon { color: #bba8ff; border-color: rgba(187,168,255,.22); background: rgba(187,168,255,.08); }
.icon-link { color: #b4c7ff; border-color: rgba(180,199,255,.22); background: rgba(180,199,255,.08); }
.feature-label { margin-bottom: 9px; color: var(--cyan); font-size: 10px; letter-spacing: .15em; text-transform: uppercase; }
.feature-card h3 { margin-bottom: 9px; font-size: 21px; font-weight: 500; letter-spacing: -.03em; }
.feature-card > p:last-child, .wide-card-copy > p:last-child { max-width: 400px; margin-bottom: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.feature-stat { align-self: end; text-align: right; }
.feature-stat strong, .feature-stat span { display: block; }
.feature-stat strong { color: var(--cyan); font-size: 30px; font-weight: 500; letter-spacing: -.04em; }
.feature-stat span { color: var(--muted); font-size: 11px; }
.wide-card-copy { max-width: 530px; }
.signal-visual { position: relative; width: 370px; height: 130px; margin-right: 20px; }
.signal-node { position: absolute; display: grid; place-items: center; width: 72px; height: 72px; border: 1px solid rgba(111, 227, 255, .35); border-radius: 50%; background: rgba(111, 227, 255, .1); color: var(--cyan); font-size: 11px; box-shadow: 0 0 30px rgba(111, 227, 255, .1); }
.node-cloud { top: 0; left: 4px; }
.node-home { top: 28px; left: 147px; color: var(--mint); border-color: rgba(135,241,220,.35); background: rgba(135,241,220,.1); }
.node-device { top: 1px; right: 2px; color: #bba8ff; border-color: rgba(187,168,255,.35); background: rgba(187,168,255,.1); }
.signal-line { position: absolute; top: 62px; width: 90px; border-top: 1px dashed rgba(111, 227, 255, .45); }
.line-one { left: 77px; transform: rotate(13deg); }
.line-two { right: 75px; transform: rotate(-13deg); }

.experience-section { position: relative; padding: 126px 0 137px; overflow: hidden; background: #0c1b2e; }
.experience-section::before { content: ""; position: absolute; top: 0; right: 0; left: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(111,227,255,.4), transparent); }
.experience-inner { display: grid; grid-template-columns: .85fr 1.15fr; align-items: end; gap: 70px; }
.section-heading-light { margin-bottom: 0; }
.section-heading-light h2 { color: var(--ink); }
.section-heading-light > p:last-child { color: var(--muted); }
.flow-row { display: flex; align-items: stretch; gap: 16px; }
.flow-step { flex: 1; min-height: 213px; padding: 21px; border: 1px solid rgba(161, 208, 242, .17); border-radius: 17px; background: rgba(21, 47, 75, .5); }
.flow-number { display: block; color: var(--cyan); font-size: 10px; letter-spacing: .14em; }
.flow-symbol { display: block; margin: 19px 0 19px; color: var(--mint); font-size: 27px; }
.flow-step h3 { margin-bottom: 7px; font-size: 19px; font-weight: 500; }
.flow-step p { margin-bottom: 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.flow-connector { align-self: center; color: rgba(111,227,255,.5); font-size: 20px; }

.brand-section { display: grid; grid-template-columns: 1fr .8fr; gap: 80px; align-items: center; }
.brand-lede { margin-bottom: 34px; }
.principle-list { display: grid; gap: 17px; max-width: 500px; }
.principle-list div { display: grid; grid-template-columns: 30px 100px 1fr; align-items: baseline; gap: 10px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.principle-list span { color: var(--cyan); font-size: 11px; }
.principle-list strong { font-size: 14px; font-weight: 600; }
.principle-list small { color: var(--muted); font-size: 12px; }
.brand-quote-card { position: relative; min-height: 365px; padding: 53px 47px; overflow: hidden; border: 1px solid rgba(111,227,255,.2); border-radius: 24px; background: radial-gradient(circle at 70% 20%, rgba(45,129,211,.34), transparent 44%), linear-gradient(145deg, #112b48, #0b1729); box-shadow: var(--shadow); }
.brand-quote-card::after { content: ""; position: absolute; right: -85px; bottom: -95px; width: 270px; height: 270px; border: 1px solid rgba(111,227,255,.18); border-radius: 50%; box-shadow: 0 0 0 24px rgba(111,227,255,.03), 0 0 0 48px rgba(111,227,255,.025); }
.quote-mark { display: block; height: 38px; color: var(--cyan); font-family: Georgia, serif; font-size: 64px; line-height: 1; }
blockquote { position: relative; z-index: 1; margin: 25px 0 65px; font-size: clamp(1.8rem, 3.3vw, 2.7rem); font-weight: 500; letter-spacing: -.06em; line-height: 1.22; }
.quote-footer { position: relative; z-index: 1; display: flex; align-items: center; gap: 11px; color: var(--muted); font-size: 10px; letter-spacing: .08em; }
.quote-line { display: block; width: 31px; border-top: 1px solid var(--cyan); }

.app-section { padding-bottom: 120px; }
.app-panel { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 35px; padding: 40px; border: 1px solid rgba(111,227,255,.2); border-radius: 25px; background: linear-gradient(105deg, rgba(17, 54, 82, .84), rgba(13, 28, 49, .84)); }
.app-panel-icon { width: 112px; height: 112px; border-radius: 27px; overflow: hidden; box-shadow: 0 15px 35px rgba(0,0,0,.3); }
.app-panel-copy h2 { margin-bottom: 13px; font-size: clamp(1.65rem, 3.2vw, 2.5rem); }
.app-panel-copy > p:not(.kicker) { margin-bottom: 17px; font-size: 13px; }
.app-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.app-tags span { padding: 5px 9px; border: 1px solid rgba(180, 218, 248, .18); border-radius: 99px; color: var(--muted-bright); font-size: 10px; }
.app-panel-badge { align-self: end; text-align: right; }
.app-panel-badge span, .app-panel-badge strong, .app-panel-badge small { display: block; }
.app-panel-badge span { color: var(--cyan); font-size: 9px; letter-spacing: .18em; }
.app-panel-badge strong { margin: 6px 0 3px; font-size: 20px; font-weight: 500; }
.app-panel-badge small { color: var(--muted); font-size: 10px; }
.final-cta { display: flex; align-items: end; justify-content: space-between; gap: 30px; padding-top: 15px; padding-bottom: 128px; }
.final-cta h2 { margin-bottom: 0; }
.final-cta .button { margin-bottom: 4px; }

.site-footer { border-top: 1px solid rgba(171, 202, 232, .1); background: #060e1a; }
.footer-inner { display: grid; grid-template-columns: 1.3fr 1.6fr auto; align-items: center; gap: 24px; min-height: 100px; }
.footer-inner > p { margin: 0; color: var(--muted); font-size: 12px; }
.footer-inner nav { display: flex; gap: 20px; justify-content: end; color: var(--muted-bright); font-size: 11px; }
.footer-inner nav a:hover { color: var(--cyan); }
.copyright { grid-column: 1 / -1; padding: 16px 0 25px; border-top: 1px solid rgba(171,202,232,.08); color: #66788d; font-size: 10px; }
.brand-mark-small { width: 34px; height: 34px; border-radius: 10px; }

@media (max-width: 950px) {
  .hero { grid-template-columns: 1fr; gap: 20px; padding-top: 56px; }
  .hero-copy { max-width: 710px; }
  .hero-art { min-height: 495px; }
  .experience-inner { grid-template-columns: 1fr; gap: 44px; }
  .brand-section { gap: 45px; }
  .signal-visual { width: 290px; transform: scale(.88); transform-origin: right center; }
  .app-panel { grid-template-columns: auto 1fr; }
  .app-panel-badge { grid-column: 2; }
}
@media (max-width: 700px) {
  .shell { width: min(100% - 36px, 560px); }
  .nav-wrap { min-height: 72px; }
  .main-nav { gap: 14px; font-size: 11px; }
  .main-nav a:not(.nav-cta) { display: none; }
  .main-nav .nav-cta { padding: 8px 11px; }
  .hero { min-height: auto; padding-top: 52px; padding-bottom: 65px; }
  .hero .kicker { margin-top: 30px; }
  h1 { font-size: clamp(3rem, 16vw, 5rem); }
  .hero-lede { font-size: 15px; }
  .hero-proof { gap: 11px; margin-top: 47px; }
  .hero-proof div { padding-left: 9px; }
  .hero-proof strong { font-size: 11px; }
  .hero-proof span { font-size: 9px; }
  .hero-art { min-height: 405px; }
  .hero-device { width: 250px; border-radius: 26px; }
  .orbit-a { width: 340px; height: 175px; }
  .orbit-b { width: 390px; height: 240px; }
  .floating-card { padding: 9px 10px; }
  .floating-card-top { top: 43px; right: 0; }
  .floating-card-bottom { right: 1px; bottom: 22px; }
  .section { padding-top: 86px; padding-bottom: 88px; }
  .section-heading { margin-bottom: 36px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card, .feature-card-large, .feature-card-wide { grid-column: span 1; min-height: auto; }
  .feature-card { padding: 24px; }
  .feature-card-large { grid-template-columns: auto 1fr; gap: 16px; }
  .feature-card-large .feature-stat { grid-column: 2; text-align: left; margin-top: 4px; }
  .feature-card-wide { display: block; }
  .signal-visual { width: 100%; margin: 32px 0 0; transform: scale(.9); transform-origin: left center; }
  .experience-section { padding: 86px 0 93px; }
  .flow-row { display: grid; grid-template-columns: 1fr; gap: 9px; }
  .flow-step { min-height: auto; padding: 19px; }
  .flow-symbol { display: inline-block; margin: 10px 13px 6px 0; }
  .flow-step h3 { display: inline-block; }
  .flow-connector { display: none; }
  .brand-section { grid-template-columns: 1fr; padding-top: 87px; }
  .brand-quote-card { min-height: 300px; padding: 40px 30px; }
  blockquote { margin-bottom: 48px; }
  .principle-list div { grid-template-columns: 28px 85px 1fr; gap: 6px; }
  .app-section { padding-bottom: 86px; }
  .app-panel { grid-template-columns: 1fr; gap: 22px; padding: 26px; }
  .app-panel-icon { width: 86px; height: 86px; border-radius: 22px; }
  .app-panel-badge { grid-column: 1; text-align: left; }
  .final-cta { display: block; padding-bottom: 90px; }
  .final-cta .button { margin-top: 27px; }
  .footer-inner { grid-template-columns: 1fr; gap: 15px; padding-top: 28px; padding-bottom: 25px; }
  .footer-inner nav { justify-content: start; gap: 16px; }
  .copyright { grid-column: 1; margin-top: 5px; padding-top: 17px; }
}