:root {
  --bg: #07090d;
  --bg-soft: #0b0f16;
  --panel: rgba(255,255,255,.06);
  --panel-strong: rgba(255,255,255,.1);
  --line: rgba(255,255,255,.12);
  --line-strong: rgba(255,255,255,.18);
  --text: #f4f7fb;
  --muted: rgba(244,247,251,.68);
  --soft: rgba(244,247,251,.46);
  --accent: #80a7ff;
  --accent-2: #75f0ff;
  --accent-3: #d6b6ff;
  --glow: radial-gradient(circle at 50% 50%, rgba(128,167,255,.24), transparent 64%);
  --shadow: 0 24px 80px rgba(0,0,0,.32);
  --radius: 24px;
  --radius-lg: 34px;
  --container: min(1200px, calc(100vw - 40px));
  --ease: 440ms cubic-bezier(.22,1,.36,1);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 0%, rgba(117,240,255,.09), transparent 24%),
    radial-gradient(circle at 84% 14%, rgba(128,167,255,.14), transparent 24%),
    radial-gradient(circle at 50% 120%, rgba(214,182,255,.12), transparent 28%),
    linear-gradient(180deg, #091019 0%, #06080d 100%);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
  min-height: 100vh;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.noise,
.glow-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
}
.noise {
  background-image: radial-gradient(rgba(255,255,255,.05) .7px, transparent .7px);
  background-size: 13px 13px;
  opacity: .16;
  mix-blend-mode: soft-light;
}
.glow-layer {
  background:
    radial-gradient(circle at var(--mx, 70%) var(--my, 10%), rgba(117,240,255,.09), transparent 16%),
    radial-gradient(circle at calc(var(--mx, 70%) + 10%) calc(var(--my, 10%) + 20%), rgba(128,167,255,.09), transparent 19%);
  opacity: .9;
}
.container { width: var(--container); margin: 0 auto; }
.section { position: relative; padding: 92px 0; }
.section-tight { padding: 74px 0; }
.eyebrow {
  margin: 0 0 16px;
  color: var(--soft);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
}
.section-head { max-width: 820px; margin-bottom: 42px; }
.section-head h1,
.section-head h2,
.hero h1,
.page-hero h1 {
  margin: 0;
  letter-spacing: -.05em;
  line-height: 1.02;
}
.section-head h2 { font-size: clamp(34px, 5vw, 60px); }
.copy,
.section-head p,
.hero-text,
.card p,
.metric p,
.list p,
.copy p { color: var(--muted); line-height: 1.85; }
.site-header {
  position: sticky; top: 0; z-index: 40;
  border-bottom: 1px solid transparent;
  transition: background var(--ease), border-color var(--ease), backdrop-filter var(--ease);
}
.site-header.scrolled {
  background: rgba(7,9,13,.74);
  border-color: var(--line);
  backdrop-filter: blur(16px);
}
.nav-wrap {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand {
  text-decoration: none;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -.04em;
}
.nav { display: flex; gap: 8px; align-items: center; }
.nav a,
.mobile-nav a {
  text-decoration: none;
  color: var(--muted);
  padding: 12px 16px;
  border-radius: 999px;
  position: relative;
  transition: color var(--ease), background var(--ease), transform var(--ease);
}
.nav a::after,
.mobile-nav a::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 8px;
  height: 1px;
  transform: scaleX(0);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.95), transparent);
  transition: transform var(--ease);
}
.nav a:hover,
.nav a.active,
.mobile-nav a:hover { color: var(--text); background: rgba(255,255,255,.05); }
.nav a:hover::after,
.nav a.active::after,
.mobile-nav a:hover::after { transform: scaleX(1); }
.menu-toggle {
  display: none; width: 48px; height: 48px; border: 0; background: transparent; padding: 0;
}
.menu-toggle span { display: block; width: 22px; height: 1.5px; background: var(--text); margin: 6px auto; }
.mobile-nav {
  display: none;
  width: var(--container);
  margin: 0 auto 12px;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 10px;
  background: rgba(15,18,25,.94);
}
.mobile-nav.open { display: grid; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.hero { padding: 56px 0 86px; }
.hero-grid,
.page-hero-grid,
.about-grid,
.contact-grid,
.service-detail,
.case-detail {
  display: grid;
  gap: 42px;
  align-items: center;
}
.hero-grid { grid-template-columns: 1.04fr .96fr; }
.page-hero-grid,
.about-grid,
.contact-grid,
.service-detail,
.case-detail { grid-template-columns: 1fr 1fr; }
.hero h1 { font-size: clamp(50px, 8vw, 104px); max-width: 10ch; }
.hero-text, .page-hero .copy { font-size: 18px; max-width: 700px; }
.hero-actions, .stack-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 54px; padding: 0 22px; border-radius: 999px; text-decoration: none;
  border: 1px solid var(--line); transition: transform var(--ease), background var(--ease), border-color var(--ease), color var(--ease), box-shadow var(--ease);
  will-change: transform;
}
.btn span:last-child { transition: transform var(--ease), opacity var(--ease); }
.btn:hover { transform: translateY(-3px); }
.btn:hover span:last-child { transform: translateX(5px); }
.btn-primary {
  color: #081018;
  background: linear-gradient(135deg, #f1f6ff 0%, #bfe3ff 58%, #d7c5ff 100%);
  border-color: transparent;
  box-shadow: 0 16px 40px rgba(139,177,255,.22);
}
.btn-secondary { background: rgba(255,255,255,.04); }
.btn-ghost { background: transparent; }
.hero-stage, .visual-stage {
  position: relative;
  min-height: 620px;
  display: grid;
  place-items: center;
}
.orb {
  position: absolute; border-radius: 999px; filter: blur(18px); opacity: .9;
}
.orb.a { width: 240px; height: 240px; right: 2%; top: 8%; background: radial-gradient(circle, rgba(117,240,255,.32), transparent 70%); }
.orb.b { width: 340px; height: 340px; left: -3%; bottom: 4%; background: radial-gradient(circle, rgba(128,167,255,.28), transparent 70%); }
.orb.c { width: 200px; height: 200px; right: 14%; bottom: 12%; background: radial-gradient(circle, rgba(214,182,255,.28), transparent 70%); }
.panel {
  position: absolute;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.04));
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.panel-main {
  width: min(520px, 100%);
  aspect-ratio: 1 / 1.08;
  border-radius: 34px;
  padding: 18px;
}
.panel-side {
  width: 260px;
  border-radius: 24px;
  padding: 20px;
  right: 0;
  bottom: 8%;
}
.panel-top { display:flex; gap:8px; margin-bottom: 18px; }
.panel-top span { width: 10px; height: 10px; border-radius: 999px; background: rgba(255,255,255,.52); }
.panel-body {
  height: calc(100% - 18px);
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.08);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(180deg, rgba(8,11,18,.68), rgba(9,14,22,.34));
}
.metric-row { display:flex; justify-content:space-between; gap:16px; align-items:flex-end; }
.metric-row small, .panel-side small { display:block; color: var(--soft); margin-bottom: 8px; }
.metric-row strong, .panel-side strong { font-size: 20px; line-height: 1.35; display:block; }
.metric-row b { font-size: 42px; color: rgba(255,255,255,.22); }
.grid-lines {
  flex: 1; min-height: 240px; border-radius: 22px; margin: 18px 0;
  background:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
    radial-gradient(circle at 72% 26%, rgba(117,240,255,.12), transparent 22%),
    radial-gradient(circle at 24% 76%, rgba(214,182,255,.12), transparent 18%);
  background-size: 34px 34px, 34px 34px, 100% 100%, 100% 100%;
}
.strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.02);
}
.strip-grid {
  display: grid; gap: 18px; grid-template-columns: repeat(4, 1fr);
}
.strip-grid p { margin: 0; padding: 18px 0; color: var(--muted); }
.card-grid,
.service-grid,
.adv-grid,
.case-grid,
.stat-grid,
.pricing-grid { display:grid; gap: 20px; }
.service-grid { grid-template-columns: repeat(3, 1fr); }
.adv-grid, .pricing-grid { grid-template-columns: repeat(4, 1fr); }
.case-grid { grid-template-columns: repeat(3, 1fr); }
.stat-grid { grid-template-columns: repeat(3, 1fr); }
.card,
.service-card,
.adv-card,
.case-card,
.stat,
.price-card,
.contact-card,
.process-card,
.feature-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease), background var(--ease);
}
.hover-glow::before,
.case-card::before,
.card::before,
.service-card::before,
.adv-card::before,
.price-card::before,
.feature-card::before,
.contact-card::before {
  content: "";
  position: absolute;
  inset: -20% auto auto -20%;
  width: 180px; height: 180px;
  background: radial-gradient(circle, rgba(117,240,255,.18), transparent 70%);
  opacity: 0;
  transition: opacity var(--ease), transform var(--ease);
  transform: translate(-20px,-20px);
  pointer-events: none;
}
.hover-glow:hover,
.case-card:hover,
.card:hover,
.service-card:hover,
.adv-card:hover,
.price-card:hover,
.feature-card:hover,
.contact-card:hover {
  transform: translateY(-8px);
  border-color: var(--line-strong);
  box-shadow: 0 24px 60px rgba(0,0,0,.28);
}
.hover-glow:hover::before,
.case-card:hover::before,
.card:hover::before,
.service-card:hover::before,
.adv-card:hover::before,
.price-card:hover::before,
.feature-card:hover::before,
.contact-card:hover::before { opacity: 1; transform: translate(0,0); }
.service-card { padding: 28px; min-height: 280px; display:flex; flex-direction:column; }
.service-card h3,
.adv-card h3,
.case-overlay h3,
.price-card h3,
.process-card h3,
.feature-card h3 { margin: 0 0 12px; font-size: 28px; letter-spacing: -.03em; }
.card-index { color: rgba(255,255,255,.34); font-size: 12px; letter-spacing: .2em; margin-bottom: 24px; }
.service-card a,
.link-line {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}
.service-card a span,
.link-line span,
.case-overlay span { transition: transform var(--ease), opacity var(--ease); }
.service-card:hover a span,
.link-line:hover span,
.case-card:hover .case-overlay span { transform: translateX(5px); }
.adv-card,
.stat,
.feature-card,
.process-card,
.contact-card { padding: 28px; }
.dark-block {
  background: linear-gradient(180deg, rgba(255,255,255,.025), rgba(255,255,255,.015));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.case-card { min-height: 420px; }
.case-media {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  transform: scale(1); transition: transform var(--ease), filter var(--ease);
}
.case-media.one {
  background:
    linear-gradient(135deg, rgba(8,10,14,.24), rgba(8,10,14,.56)),
    radial-gradient(circle at 20% 18%, rgba(117,240,255,.26), transparent 24%),
    radial-gradient(circle at 84% 22%, rgba(128,167,255,.28), transparent 22%),
    linear-gradient(135deg, #162233, #0c1422 50%, #1d1330 100%);
}
.case-media.two {
  background:
    linear-gradient(135deg, rgba(8,10,14,.28), rgba(8,10,14,.58)),
    radial-gradient(circle at 18% 72%, rgba(214,182,255,.28), transparent 22%),
    radial-gradient(circle at 82% 16%, rgba(117,240,255,.18), transparent 20%),
    linear-gradient(135deg, #1a1629, #101827 55%, #11223a 100%);
}
.case-media.three {
  background:
    linear-gradient(135deg, rgba(8,10,14,.26), rgba(8,10,14,.6)),
    radial-gradient(circle at 36% 24%, rgba(128,167,255,.28), transparent 22%),
    radial-gradient(circle at 78% 72%, rgba(117,240,255,.18), transparent 18%),
    linear-gradient(135deg, #101419, #0d1f28 55%, #1f1730 100%);
}
.case-media.four {
  background:
    linear-gradient(135deg, rgba(8,10,14,.26), rgba(8,10,14,.6)),
    radial-gradient(circle at 18% 18%, rgba(117,240,255,.18), transparent 18%),
    radial-gradient(circle at 84% 84%, rgba(214,182,255,.28), transparent 24%),
    linear-gradient(135deg, #0f1420, #111f31 50%, #1b1430 100%);
}
.case-card:hover .case-media { transform: scale(1.06); filter: saturate(1.1); }
.case-overlay {
  position: absolute; inset: auto 0 0 0;
  padding: 28px;
  background: linear-gradient(180deg, transparent, rgba(5,7,12,.7) 30%, rgba(5,7,12,.92) 100%);
  transform: translateY(18px);
  transition: transform var(--ease), background var(--ease);
}
.case-card:hover .case-overlay { transform: translateY(0); }
.case-overlay p { margin: 0 0 10px; color: var(--soft); }
.case-overlay span { color: var(--text); }
.page-hero {
  padding: 40px 0 36px;
}
.page-hero .copy { max-width: 760px; }
.sub-nav {
  display: flex; gap: 10px; flex-wrap: wrap; margin-top: 28px;
}
.sub-nav a {
  text-decoration: none; color: var(--muted); padding: 12px 16px; border: 1px solid var(--line); border-radius: 999px;
  background: rgba(255,255,255,.03); transition: all var(--ease);
}
.sub-nav a:hover { color: var(--text); transform: translateY(-2px); }
.metric-box,
.copy-box {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  box-shadow: var(--shadow);
  padding: 28px;
}
.metric-box {
  display:grid; gap:20px; grid-template-columns: repeat(2, 1fr);
}
.metric {
  padding: 18px; border-radius: 20px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.08);
}
.metric strong { display:block; font-size: 36px; margin-bottom: 8px; letter-spacing: -.04em; }
.list {
  display: grid; gap: 18px;
}
.list-item {
  display:flex; gap:16px; padding: 20px 0; border-bottom: 1px solid var(--line);
}
.list-item:last-child { border-bottom: 0; }
.list-item b { color: rgba(255,255,255,.32); min-width: 44px; }
.pricing-grid { margin-top: 10px; }
.price-card { padding: 28px; min-height: 260px; }
.price-card .price { font-size: 36px; margin: 12px 0 18px; letter-spacing: -.04em; }
.price-card ul { padding-left: 18px; color: var(--muted); line-height: 1.8; }
.process-grid { display:grid; grid-template-columns: repeat(4, 1fr); gap:20px; }
.contact-grid { align-items: start; }
.contact-stack { display:grid; gap:20px; }
.contact-card a { text-decoration:none; }
.cta-box {
  border-radius: 34px;
  border: 1px solid var(--line);
  padding: 34px;
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 26px;
  align-items: center;
  background:
    linear-gradient(180deg, rgba(255,255,255,.1), rgba(255,255,255,.04)),
    radial-gradient(circle at 10% 10%, rgba(117,240,255,.1), transparent 20%),
    radial-gradient(circle at 90% 40%, rgba(128,167,255,.12), transparent 22%);
}
.site-footer {
  border-top: 1px solid var(--line);
  padding: 22px 0 30px;
}
.footer-wrap {
  display:flex; justify-content:space-between; gap:16px; align-items:center; color: var(--soft); flex-wrap: wrap;
}
.footer-nav { display:flex; gap:16px; flex-wrap: wrap; }
.footer-nav a { text-decoration:none; }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .12s; }
.delay-2 { transition-delay: .24s; }
.delay-3 { transition-delay: .36s; }
.hide-mobile { display: inline-flex; }
@media (max-width: 1100px) {
  .hero-grid,
  .page-hero-grid,
  .about-grid,
  .contact-grid,
  .service-detail,
  .case-detail,
  .cta-box,
  .process-grid,
  .service-grid,
  .adv-grid,
  .pricing-grid,
  .case-grid,
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .strip-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .desktop-nav, .hide-mobile { display: none; }
  .menu-toggle { display: inline-block; }
  .hero-grid,
  .page-hero-grid,
  .about-grid,
  .contact-grid,
  .service-detail,
  .case-detail,
  .cta-box,
  .process-grid,
  .service-grid,
  .adv-grid,
  .pricing-grid,
  .case-grid,
  .stat-grid,
  .metric-box,
  .strip-grid { grid-template-columns: 1fr; }
  .section { padding: 78px 0; }
  .hero-stage, .visual-stage { min-height: 500px; }
  .panel-side { position: relative; right: auto; bottom: auto; width: 100%; margin-top: 16px; }
  .cta-box { padding: 28px; }
  .hero h1, .page-hero h1 { max-width: 100%; }
  .footer-wrap { align-items:flex-start; }
}
@media (max-width: 560px) {
  .container { width: min(100vw - 26px, 100%); }
  .nav-wrap { min-height: 72px; }
  .hero { padding-top: 26px; }
  .hero-text, .page-hero .copy { font-size: 16px; }
  .btn { width: 100%; }
  .hero-actions, .stack-actions { display: grid; }
  .panel-main { border-radius: 28px; }
  .service-card h3, .adv-card h3, .case-overlay h3, .price-card h3 { font-size: 24px; }
}