:root {
  --ink: #101828;
  --muted: #667085;
  --line: rgba(16, 24, 40, 0.1);
  --surface: #ffffff;
  --soft: #f5f7fb;
  --accent: #2563eb;
  --accent-2: #06b6d4;
  --dark: #0b1220;
  --radius: 22px;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(37, 99, 235, 0.14), transparent 65%),
    radial-gradient(800px 420px at 5% 4%, rgba(6, 182, 212, 0.1), transparent 60%),
    var(--soft);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 16px 0;
  background: rgba(245, 247, 251, 0.78);
  backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-size: 19px;
  font-weight: 750;
  letter-spacing: -0.03em;
}
.brand-mark {
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.26);
  font-size: 12px;
  letter-spacing: -0.04em;
}
.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 999px;
}
.nav a:hover { color: var(--ink); background: rgba(16, 24, 40, 0.05); }
.nav .nav-cta { color: #fff; background: var(--ink); }
.nav .nav-cta:hover { color: #fff; background: #1f2937; }
.lang-switch { margin-left: 6px; }
.lang-switch select {
  appearance: none;
  -webkit-appearance: none;
  color: var(--muted);
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 26px 8px 11px;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 13px) 50%, calc(100% - 9px) 50%;
  background-size: 4px 4px, 4px 4px;
  background-repeat: no-repeat;
}
.lang-switch select:focus { outline: 2px solid rgba(37,99,235,.35); outline-offset: 2px; }
.hero { padding: clamp(58px, 9vw, 112px) 0 54px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(32px, 6vw, 76px); align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--accent);
  font-size: 12px; font-weight: 750;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: currentColor; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -0.045em; margin: 0; }
h1 { font-size: clamp(42px, 7vw, 78px); margin: 18px 0 22px; }
h2 { font-size: clamp(28px, 3.8vw, 44px); margin: 12px 0 12px; }
h3 { font-size: 19px; margin: 0 0 8px; letter-spacing: -0.02em; }
.lead { color: var(--muted); font-size: clamp(16px, 1.8vw, 19px); max-width: 610px; margin: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 14px; font-weight: 700;
  border: 1px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--accent); color: #fff; box-shadow: 0 14px 28px rgba(37, 99, 235, .24); }
.button-primary:hover { box-shadow: 0 18px 34px rgba(37, 99, 235, .32); }
.button-secondary { background: rgba(255,255,255,.78); color: var(--ink); border-color: var(--line); }
.hero-visual { position: relative; min-height: 390px; display: grid; place-items: center; }
.orb {
  position: absolute; inset: 4% 1% 0 8%;
  border-radius: 50%;
  background: conic-gradient(from 210deg, #dbeafe, #cffafe, #e0e7ff, #dbeafe);
  filter: blur(2px);
  opacity: .85;
}
.phone {
  position: relative;
  width: min(278px, 78%);
  aspect-ratio: .52;
  border-radius: 38px;
  padding: 11px;
  background: #0b1220;
  box-shadow: 0 30px 60px rgba(15, 23, 42, .28);
  transform: rotate(5deg);
}
.phone-screen {
  height: 100%; border-radius: 29px; overflow: hidden;
  background:
    radial-gradient(150px 200px at 52% 18%, rgba(96,165,250,.7), transparent 70%),
    linear-gradient(160deg, #111827, #1e3a8a 55%, #0e7490);
  position: relative;
  padding: 18px;
  color: #fff;
}
.phone-screen::before {
  content: ""; position: absolute; width: 74px; height: 20px;
  border-radius: 999px; background: #0b1220; top: 10px; left: 50%; transform: translateX(-50%);
}
.phone-word { margin-top: 54px; font-size: 11px; opacity: .7; letter-spacing: .12em; text-transform: uppercase; }
.phone-title { margin-top: 8px; font-size: 25px; font-weight: 750; letter-spacing: -.04em; line-height: 1.1; }
.phone-copy { margin-top: 12px; font-size: 12px; line-height: 1.55; color: rgba(255,255,255,.72); }
.phone-pill {
  display: inline-flex; margin-top: 28px; align-items: center; gap: 7px;
  padding: 8px 11px; border-radius: 999px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.22);
  font-size: 11px; font-weight: 650;
}
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: #6ee7b7; box-shadow: 0 0 0 4px rgba(110,231,183,.14); }
.section { padding: 42px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.section-head p { color: var(--muted); margin: 0; max-width: 520px; }
.product-card {
  display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center;
  background: var(--dark); color: #fff;
  border-radius: 28px; padding: clamp(26px, 4vw, 46px);
  box-shadow: var(--shadow);
  overflow: hidden; position: relative;
}
.product-card::after {
  content: ""; position: absolute; right: -80px; top: -120px; width: 360px; height: 360px;
  border-radius: 50%; background: radial-gradient(circle, rgba(6,182,212,.35), transparent 65%);
}
.product-card p { color: rgba(255,255,255,.66); max-width: 560px; margin: 12px 0 0; }
.product-actions { display: flex; gap: 10px; flex-wrap: wrap; position: relative; z-index: 1; }
.product-card .button-secondary { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.2); }
.product-tag { display: inline-flex; align-items: center; gap: 7px; color: #a5f3fc; font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.card {
  background: rgba(255,255,255,.78);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 8px 25px rgba(15, 23, 42, .04);
}
.card p { color: var(--muted); margin: 0; font-size: 14px; }
.icon {
  width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: 12px; margin-bottom: 16px;
  background: #eaf1ff; color: var(--accent);
  font-size: 17px; font-weight: 750;
}
.page-hero { padding: clamp(48px, 7vw, 86px) 0 34px; }
.page-hero h1 { font-size: clamp(38px, 6vw, 68px); max-width: 900px; }
.breadcrumbs { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; margin-bottom: 20px; }
.breadcrumbs a { text-decoration: none; }
.breadcrumbs span { opacity: .45; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.feature {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px;
}
.feature p { color: var(--muted); margin: 8px 0 0; font-size: 14px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; counter-reset: step; }
.step { padding: 24px; border-radius: var(--radius); background: rgba(255,255,255,.66); border: 1px solid var(--line); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  display: block; color: var(--accent); font-size: 12px; font-weight: 750; letter-spacing: .1em; margin-bottom: 18px;
}
.step p { color: var(--muted); font-size: 14px; margin: 0; }
.cta-panel {
  background: linear-gradient(130deg, #0b1220, #172554 65%, #0e7490);
  border-radius: 28px; color: #fff; padding: clamp(28px, 5vw, 54px);
  display: flex; align-items: center; justify-content: space-between; gap: 30px;
  box-shadow: var(--shadow);
}
.cta-panel p { color: rgba(255,255,255,.68); margin: 10px 0 0; }
.cta-panel .button-primary { background: #fff; color: #0b1220; box-shadow: none; white-space: nowrap; }
.prose {
  max-width: 800px; background: rgba(255,255,255,.82); border: 1px solid var(--line);
  border-radius: var(--radius); padding: clamp(24px, 4vw, 44px);
  box-shadow: 0 10px 30px rgba(15,23,42,.04);
}
.prose h2 { font-size: 22px; margin: 30px 0 8px; letter-spacing: -.02em; }
.prose h2:first-of-type { margin-top: 4px; }
.prose p, .prose li { color: #475467; font-size: 15px; }
.prose ul { padding-left: 20px; }
.prose a { color: var(--accent); }
.note { color: var(--muted); font-size: 13px; }
.faq { max-width: 800px; }
.faq details {
  background: rgba(255,255,255,.8); border: 1px solid var(--line);
  border-radius: 16px; padding: 16px 18px; margin-bottom: 10px;
}
.faq summary { cursor: pointer; font-weight: 650; }
.faq details p { color: var(--muted); font-size: 14px; margin: 10px 0 0; }
.site-footer { padding: 54px 0 38px; border-top: 1px solid var(--line); margin-top: 42px; }
.footer-grid { display: flex; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.footer-brand { font-weight: 750; letter-spacing: -.02em; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; font-size: 13px; color: var(--muted); }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--ink); }
.legal { color: var(--muted); font-size: 12px; margin-top: 26px; max-width: 730px; }
@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 330px; }
  .product-card { grid-template-columns: 1fr; }
  .grid, .steps, .feature-grid { grid-template-columns: 1fr; }
  .nav a:not(.nav-cta) { display: none; }
  .lang-switch { margin-left: 2px; }
  .lang-switch select { max-width: 116px; }
  .section-head { display: block; }
  .section-head p { margin-top: 8px; }
  .cta-panel { display: block; }
  .cta-panel .button { margin-top: 22px; }
}
@media (max-width: 480px) {
  .wrap { width: min(100% - 28px, 1120px); }
  .site-header { padding: 12px 0; }
  .brand { font-size: 17px; }
  .nav .nav-cta { padding: 8px 12px; font-size: 12px; }
  .hero { padding-top: 42px; }
}