:root {
  --navy-950: #05131f;
  --navy-900: #071827;
  --navy-800: #0b2333;
  --navy-700: #113447;
  --teal-600: #00a995;
  --teal-500: #00c8b4;
  --teal-300: #69ead8;
  --gold: #efc66f;
  --ink: #10242f;
  --muted: #60727b;
  --line: #dfe8e9;
  --mist: #f3f8f7;
  --white: #fff;
  --container: 1200px;
  --shadow: 0 24px 70px rgba(8, 35, 49, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 90px; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  /* Reference site's text stack and 14px / 1.5 base typography. */
  font: 14px/1.5 "Microsoft Yahei", SimHei, Tahoma, Arial, "Hiragino Sans GB", SimSun, sans-serif;
  font-weight: 400;
}
h1, h2, h3, h4, h5, h6 { font-weight: 500; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
svg { display: block; }
.container { width: min(calc(100% - 48px), var(--container)); margin: 0 auto; }
.section { padding: 118px 0; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 999; background: #fff; padding: 12px 18px; border-radius: 8px; transition: top .2s; }
.skip-link:focus { top: 16px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: 84px;
  color: #fff;
  background: linear-gradient(to bottom, rgba(3, 14, 23, .8), transparent);
  transition: height .25s ease, background .25s ease, box-shadow .25s ease;
}
.site-header.scrolled { height: 70px; background: rgba(5, 19, 31, .94); box-shadow: 0 12px 32px rgba(0,0,0,.15); backdrop-filter: blur(14px); }
.nav-wrap { width: min(calc(100% - 48px), 1320px); height: 100%; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand-mark { width: 42px; height: 42px; fill: var(--teal-500); }
.brand-mark-cut { fill: var(--navy-950); }
.brand-copy { display: grid; line-height: 1; }
.brand-copy strong { font-size: 25px; letter-spacing: .14em; }
.brand-copy small { margin-top: 5px; color: rgba(255,255,255,.6); font-size: 8px; letter-spacing: .22em; }
.site-nav { display: flex; align-items: center; gap: 40px; font-size: 14px; }
.site-nav a { position: relative; color: rgba(255,255,255,.72); transition: color .2s; }
.site-nav a:not(.nav-contact)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -10px; height: 2px; background: var(--teal-500); transition: right .2s; }
.site-nav a:hover, .site-nav a.active { color: #fff; }
.site-nav a:hover::after, .site-nav a.active::after { right: 0; }
.site-nav .nav-contact { padding: 12px 20px; border: 1px solid rgba(255,255,255,.35); border-radius: 999px; color: #fff; }
.site-nav .nav-contact:hover { background: #fff; color: var(--navy-950); }
.menu-toggle { display: none; width: 42px; height: 42px; border: 0; background: transparent; padding: 10px; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: #fff; transition: transform .25s, opacity .25s; }

.hero { min-height: 780px; height: min(900px, 100svh); position: relative; display: grid; align-items: center; overflow: hidden; color: #fff; background: var(--navy-950); }
.hero-media { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5,19,31,.99) 0%, rgba(5,19,31,.82) 31%, rgba(5,19,31,.12) 66%, rgba(5,19,31,.1) 100%), url('/assets/ugc-hero.png') center/cover no-repeat; }
.hero-media::after { content: ""; position: absolute; inset: auto 0 0; height: 190px; background: linear-gradient(transparent, rgba(5,19,31,.75)); }
.hero-grid { position: absolute; inset: 0; opacity: .08; background-image: linear-gradient(rgba(255,255,255,.3) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.3) 1px, transparent 1px); background-size: 96px 96px; mask-image: linear-gradient(90deg, #000, transparent 75%); }
.hero-content { position: relative; z-index: 2; padding-top: 80px; }
.eyebrow, .section-kicker { display: flex; align-items: center; gap: 12px; color: var(--teal-500); font-size: 14px; font-weight: 400; letter-spacing: normal; text-transform: uppercase; }
.eyebrow span { width: 34px; height: 1px; background: var(--teal-500); }
.hero h1 { max-width: 770px; margin: 26px 0 24px; font-size: 58px; font-weight: 700; line-height: 1.2; letter-spacing: normal; }
.hero h1 em { color: var(--teal-300); font-style: normal; }
.hero-content > p { max-width: 660px; margin: 0; color: rgba(255,255,255,.7); font-size: 16px; line-height: 1.5; }
.hero-actions { display: flex; gap: 14px; margin-top: 38px; }
.button { display: inline-flex; min-height: 54px; align-items: center; justify-content: center; gap: 28px; padding: 0 26px; border-radius: 5px; font-size: 16px; font-weight: 400; transition: transform .2s, background .2s, color .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--teal-500); color: var(--navy-950); box-shadow: 0 12px 30px rgba(0,200,180,.2); }
.button-primary:hover { background: var(--teal-300); }
.button-ghost { color: #fff; border: 1px solid rgba(255,255,255,.34); }
.button-ghost:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.7); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-top: 64px; color: rgba(255,255,255,.44); font-size: 14px; letter-spacing: normal; }
.hero-tags span { position: relative; }
.hero-tags span:not(:last-child)::after { content: ""; position: absolute; right: -13px; top: 4px; width: 3px; height: 3px; border-radius: 50%; background: var(--teal-500); }
.scroll-cue { position: absolute; z-index: 3; right: max(28px, calc((100% - 1320px)/2)); bottom: 36px; display: flex; align-items: center; gap: 14px; color: rgba(255,255,255,.52); font-size: 9px; letter-spacing: .25em; transform: rotate(90deg); transform-origin: right center; }
.scroll-cue i { display: block; width: 52px; height: 1px; background: rgba(255,255,255,.3); position: relative; overflow: hidden; }
.scroll-cue i::after { content: ""; position: absolute; inset: 0; background: var(--teal-500); transform: translateX(-100%); animation: scrollLine 2s infinite; }
@keyframes scrollLine { 50%, 100% { transform: translateX(100%); } }

.intro { padding-bottom: 94px; }
.intro-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 100px; align-items: end; }
.section-kicker { margin: 0 0 22px; }
.section-kicker::before { content: ""; width: 28px; height: 2px; background: currentColor; }
.section h2 { margin: 0; font-size: 38px; font-weight: 200; line-height: 1; letter-spacing: normal; }
.intro-copy { border-left: 1px solid var(--line); padding: 10px 0 8px 52px; }
.intro-copy p { margin: 0 0 26px; color: var(--muted); font-size: 16px; line-height: 1.5; }
.text-link { color: var(--teal-600); font-size: 16px; font-weight: 400; }
.text-link span { margin-left: 10px; transition: margin .2s; }
.text-link:hover span { margin-left: 16px; }

.products { background: var(--mist); }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 60px; margin-bottom: 54px; }
.section-heading > p { max-width: 440px; margin: 0 0 7px; color: var(--muted); font-size: 16px; line-height: 1.5; }
.section-heading h2 { font-size: 38px; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.product-card { overflow: hidden; background: #fff; border: 1px solid rgba(9,54,65,.08); box-shadow: 0 8px 30px rgba(7,34,46,.04); transition: transform .3s, box-shadow .3s; }
.product-card:focus-visible { outline: 3px solid var(--teal-600); outline-offset: 5px; }
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); }
.product-visual { position: relative; height: 258px; overflow: hidden; display: grid; place-items: center; background: var(--navy-800); }
.product-visual::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 42px 42px; }
.product-visual svg { position: relative; z-index: 2; width: 140px; height: 140px; fill: none; stroke: var(--teal-300); stroke-width: 1.7; filter: drop-shadow(0 0 14px rgba(0,200,180,.35)); }
.visual-speed svg { fill: rgba(105,234,216,.12); }
.visual-chip { position: absolute; z-index: 3; left: 20px; top: 18px; color: var(--teal-300); font-size: 10px; font-weight: 800; letter-spacing: .18em; border: 1px solid rgba(105,234,216,.38); border-radius: 99px; padding: 7px 10px; }
.visual-orbit { position: absolute; border: 1px solid rgba(105,234,216,.18); border-radius: 50%; }
.orbit-one { width: 230px; height: 110px; transform: rotate(25deg); }
.orbit-two { width: 220px; height: 100px; transform: rotate(-34deg); }
.globe-line { position: absolute; inset: 22px; border-radius: 50%; border: 1px solid rgba(239,198,111,.22); }
.globe-line-b { inset: 52px 20px; transform: rotate(35deg); }
.speed-line { position: absolute; height: 1px; background: linear-gradient(90deg, transparent, var(--teal-500), transparent); transform: rotate(-28deg); }
.speed-line-a { width: 330px; top: 45%; }
.speed-line-b { width: 260px; top: 61%; }
.product-content { position: relative; padding: 32px 32px 34px; }
.product-number { position: absolute; right: 26px; top: 28px; color: #e5efee; font-size: 36px; font-weight: 800; }
.product-en { margin: 0 0 7px; color: var(--teal-600); font-size: 18px; font-weight: 300; letter-spacing: normal; }
.product-content h3 { margin: 0 0 17px; font-size: 24px; font-weight: 700; }
.product-content > p:not(.product-en) { min-height: 82px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.product-content ul { list-style: none; margin: 24px 0 28px; padding: 20px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.product-content li { margin: 9px 0; color: #38515c; font-size: 14px; }
.product-content li::before { content: ""; display: inline-block; width: 5px; height: 5px; margin: 0 11px 2px 0; border-radius: 50%; background: var(--teal-500); }
.card-link { display: inline-flex; align-items: center; gap: 28px; font-size: 16px; font-weight: 400; }
.card-link span { color: var(--teal-600); font-size: 19px; }

.capabilities { color: #fff; background: var(--navy-950); position: relative; overflow: hidden; }
.capabilities::before { content: ""; position: absolute; width: 620px; height: 620px; left: -260px; bottom: -330px; border-radius: 50%; background: rgba(0,200,180,.08); filter: blur(2px); box-shadow: 0 0 0 90px rgba(0,200,180,.025), 0 0 0 180px rgba(0,200,180,.015); }
.capabilities-shell { position: relative; display: grid; grid-template-columns: .85fr 1.15fr; gap: 110px; align-items: center; }
.section-kicker.light { color: var(--teal-300); }
.capabilities-copy h2 { font-size: 38px; }
.capabilities-copy > p:not(.section-kicker) { max-width: 500px; margin: 26px 0 34px; color: rgba(255,255,255,.58); font-size: 16px; line-height: 1.5; }
.button-light { background: #fff; color: var(--navy-950); }
.capability-list { border-top: 1px solid rgba(255,255,255,.12); }
.capability-list article { display: grid; grid-template-columns: 58px 1fr; gap: 22px; align-items: center; padding: 26px 0; border-bottom: 1px solid rgba(255,255,255,.12); transition: padding-left .2s, background .2s; }
.capability-list article:hover { padding-left: 14px; background: linear-gradient(90deg, rgba(0,200,180,.08), transparent); }
.capability-list article > span { color: var(--teal-500); font: 700 11px/1 monospace; }
.capability-list h3 { margin: 0 0 6px; font-size: 24px; }
.capability-list p { margin: 0; color: rgba(255,255,255,.48); font-size: 14px; }

.section-heading.compact { align-items: center; }
.process-list { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; padding: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.process-list li { position: relative; min-height: 300px; padding: 36px 30px; border-right: 1px solid var(--line); }
.process-list li:last-child { border-right: 0; }
.process-index { color: #abbfc3; font: 700 11px/1 monospace; }
.process-icon { width: 48px; height: 48px; margin: 42px 0 28px; display: grid; place-items: center; border-radius: 50%; color: var(--teal-600); background: #e8f8f5; }
.process-icon svg { width: 23px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.process-list h3 { margin: 0 0 12px; font-size: 24px; }
.process-list p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }

.about { background: #eef5f4; overflow: hidden; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 110px; align-items: center; }
.about-art { position: relative; height: 510px; }
.about-art::before { content: ""; position: absolute; width: 420px; height: 420px; left: 10%; top: 7%; border: 1px solid rgba(0,169,149,.18); border-radius: 50%; box-shadow: 0 0 0 55px rgba(0,169,149,.035), 0 0 0 110px rgba(0,169,149,.02); }
.about-card { position: absolute; display: flex; flex-direction: column; justify-content: space-between; color: #fff; background: var(--navy-900); box-shadow: 0 30px 70px rgba(5,29,41,.2); }
.about-card-main { z-index: 2; width: 315px; height: 390px; left: 17%; top: 10%; padding: 34px; transform: rotate(-6deg); }
.about-card-main::after { content: ""; position: absolute; inset: 0; background: linear-gradient(145deg, transparent 44%, rgba(0,200,180,.28)); }
.about-card-main span { position: relative; z-index: 1; color: var(--teal-300); font-weight: 800; letter-spacing: .18em; }
.about-card-main strong { position: relative; z-index: 1; font-size: 36px; line-height: 1.15; letter-spacing: -.02em; }
.about-card-mini { width: 145px; height: 185px; right: 3%; bottom: 9%; align-items: center; justify-content: center; color: var(--navy-950); background: var(--teal-500); font-size: 72px; transform: rotate(8deg); }
.about-dot { position: absolute; border-radius: 50%; background: var(--gold); }
.about-dot-a { width: 15px; height: 15px; left: 5%; top: 23%; }
.about-dot-b { width: 8px; height: 8px; right: 12%; top: 13%; background: var(--teal-600); }
.about-copy h2 { font-size: 38px; }
.about-lead { margin: 31px 0 17px; color: var(--ink); font-size: 16px; font-weight: 400; line-height: 1.5; }
.about-copy > p:not(.section-kicker):not(.about-lead) { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.5; }
.about-values { display: flex; gap: 28px; margin-top: 34px; padding-top: 27px; border-top: 1px solid #d6e2e0; }
.about-values span { display: flex; align-items: center; gap: 9px; font-size: 14px; font-weight: 400; }
.about-values i { width: 6px; height: 6px; border-radius: 50%; background: var(--teal-500); }

.contact { position: relative; color: #fff; background: linear-gradient(115deg, #0b2937, #071827); overflow: hidden; }
.contact::before { content: "UGC"; position: absolute; right: -24px; bottom: -105px; color: rgba(255,255,255,.025); font-size: 310px; font-weight: 900; letter-spacing: -.07em; }
.contact-shell { position: relative; display: grid; grid-template-columns: 1fr 480px; gap: 100px; align-items: center; }
.contact-heading h2 { font-size: 38px; }
.contact-heading h2 em { color: var(--teal-300); font-style: normal; }
.contact-heading > p:not(.section-kicker) { max-width: 560px; margin: 28px 0 0; color: rgba(255,255,255,.55); font-size: 16px; line-height: 1.5; }
.contact-panel { padding: 34px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); backdrop-filter: blur(8px); }
.contact-row { display: grid; grid-template-columns: 44px 1fr 20px; gap: 16px; align-items: center; padding: 0 0 24px; margin-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,.12); }
.contact-row > i { color: var(--teal-300); font-style: normal; }
.contact-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; background: rgba(0,200,180,.13); color: var(--teal-300); }
.contact-icon svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.contact-panel small { display: block; margin-bottom: 6px; color: rgba(255,255,255,.42); font-size: 12px; letter-spacing: normal; }
.contact-panel strong { font-size: 16px; font-weight: 400; }
.social-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 28px; }
.social-row > div { padding: 16px; background: rgba(255,255,255,.04); }
.button-full { width: 100%; }

.site-footer { color: rgba(255,255,255,.55); background: #030e16; }
.footer-grid { display: grid; grid-template-columns: 1fr auto auto; gap: 80px; align-items: center; padding-top: 58px; padding-bottom: 50px; }
.footer-brand { color: #fff; }
.footer-grid > div:first-child > p { margin: 17px 0 0; font-size: 14px; }
.footer-nav, .footer-contact { display: grid; gap: 13px; font-size: 14px; }
.footer-nav a:hover, .footer-contact a:hover { color: var(--teal-300); }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; padding-top: 21px; padding-bottom: 21px; border-top: 1px solid rgba(255,255,255,.08); font-size: 14px; }
.footer-bottom p { margin: 0; }
.back-top { position: fixed; right: 24px; bottom: 24px; z-index: 30; width: 44px; height: 44px; display: grid; place-items: center; color: var(--navy-950); background: var(--teal-500); opacity: 0; pointer-events: none; transform: translateY(15px); transition: opacity .2s, transform .2s; }
.back-top.visible { opacity: 1; pointer-events: auto; transform: none; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1024px) {
  .site-nav { gap: 24px; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .product-card:last-child { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; }
  .product-card:last-child .product-visual { height: 100%; min-height: 350px; }
  .capabilities-shell, .about-grid, .contact-shell { gap: 64px; }
  .process-list { grid-template-columns: 1fr 1fr; }
  .process-list li:nth-child(2) { border-right: 0; }
  .process-list li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .contact-shell { grid-template-columns: 1fr 430px; }
}

@media (max-width: 820px) {
  .container, .nav-wrap { width: min(calc(100% - 36px), var(--container)); }
  .section { padding: 86px 0; }
  .site-header { height: 70px; }
  .menu-toggle { display: block; z-index: 2; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-nav { position: fixed; inset: 0; padding: 110px 28px 40px; flex-direction: column; align-items: flex-start; gap: 28px; background: rgba(5,19,31,.98); transform: translateX(100%); transition: transform .3s ease; }
  .site-nav.open { transform: none; }
  .site-nav a { font-size: 18px; }
  .site-nav .nav-contact { margin-top: 10px; font-size: 14px; }
  .hero { min-height: 760px; height: 100svh; max-height: 900px; }
  .hero-media { background-position: 67% center; opacity: .72; }
  .hero-media::before { content: ""; position: absolute; inset: 0; background: rgba(4,17,27,.28); }
  .hero h1 { font-size: clamp(36px, 7vw, 58px); }
  .hero-content > p { max-width: 570px; font-size: 16px; }
  .hero-tags { margin-top: 46px; }
  .scroll-cue { display: none; }
  .intro-grid, .capabilities-shell, .about-grid, .contact-shell { grid-template-columns: 1fr; }
  .intro-grid { gap: 38px; }
  .intro-copy { padding-left: 30px; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 22px; }
  .capabilities-shell { gap: 54px; }
  .about-grid { gap: 40px; }
  .about-art { order: 2; height: 430px; max-width: 570px; width: 100%; margin: 0 auto; }
  .contact-shell { gap: 50px; }
  .contact-panel { width: min(100%, 520px); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-contact { grid-column: 2; }
}

@media (max-width: 620px) {
  .container, .nav-wrap { width: min(calc(100% - 28px), var(--container)); }
  .section { padding: 72px 0; }
  .brand-mark { width: 36px; height: 36px; }
  .brand-copy strong { font-size: 21px; }
  .hero { min-height: 720px; }
  .hero-media { background-position: 68% center; }
  .hero-media::before { background: linear-gradient(90deg, rgba(5,19,31,.86), rgba(5,19,31,.43)); }
  .hero-content { padding-top: 62px; }
  .hero h1 { margin-top: 20px; font-size: 36px; line-height: 1.2; }
  .hero-actions { align-items: stretch; flex-direction: column; max-width: 300px; }
  .hero-tags { gap: 12px 22px; }
  .section h2 { font-size: 30px; }
  .intro-copy { border: 0; padding: 0; }
  .product-grid { grid-template-columns: 1fr; }
  .product-card:last-child { grid-column: auto; display: block; }
  .product-card:last-child .product-visual { height: 258px; min-height: 0; }
  .product-content > p:not(.product-en) { min-height: 0; }
  .process-list { grid-template-columns: 1fr; }
  .process-list li { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .process-list li:last-child { border-bottom: 0; }
  .process-icon { margin: 28px 0 20px; }
  .about-art { height: 370px; }
  .about-card-main { width: 245px; height: 315px; left: 9%; }
  .about-card-main strong { font-size: 29px; }
  .about-card-mini { width: 112px; height: 145px; }
  .about-art::before { width: 310px; height: 310px; left: 4%; }
  .about-values { gap: 14px; justify-content: space-between; }
  .contact-heading h2 { font-size: 30px; }
  .contact-panel { padding: 24px 20px; }
  .contact-row { grid-template-columns: 42px minmax(0, 1fr) 16px; }
  .contact-row strong { overflow-wrap: anywhere; font-size: 14px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-contact { grid-column: auto; }
  .footer-bottom { 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; }
}