:root {
  --ink: #101114;
  --muted: #626977;
  --soft: #f5f7fb;
  --card: rgba(255, 255, 255, 0.72);
  --line: rgba(18, 20, 24, 0.1);
  --accent: #f47b20;
  --accent-2: #276ef1;
  --radius: 28px;
  --shadow: 0 28px 80px rgba(18, 20, 24, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 12% 0%, rgba(244, 123, 32, 0.18), transparent 32rem),
    radial-gradient(circle at 86% 18%, rgba(39, 110, 241, 0.14), transparent 30rem),
    linear-gradient(135deg, #fbfaf7 0%, #f4f7fb 48%, #fff5ec 100%);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  background: rgba(250, 250, 250, 0.68);
  border-bottom: 1px solid rgba(255, 255, 255, 0.52);
}

.nav-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: 0 14px 34px rgba(244, 123, 32, 0.26);
}

.links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.links a {
  padding: 10px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.links a:hover,
.links a.active {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.86);
  transform: translateY(-1px);
}

.hero {
  padding: 96px 0 72px;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(300px, 0.78fr);
  gap: 52px;
  align-items: center;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  background: rgba(244, 123, 32, 0.12);
  border: 1px solid rgba(244, 123, 32, 0.18);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 700;
}

h1 {
  margin: 22px 0 18px;
  font-size: clamp(48px, 7vw, 86px);
  line-height: 0.96;
  letter-spacing: -0.075em;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.02;
  letter-spacing: -0.055em;
}

h3 {
  margin: 0 0 10px;
  font-size: 22px;
  letter-spacing: -0.035em;
}

.lede {
  max-width: 690px;
  color: var(--muted);
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.45;
  letter-spacing: -0.02em;
}

.hero-actions,
.button-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 10px 30px rgba(18, 20, 24, 0.08);
}

.button.primary {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, #1d1e22, #343941);
}

.device-card {
  min-height: 520px;
  padding: 26px;
  border-radius: 42px;
  background: linear-gradient(160deg, rgba(255,255,255,0.86), rgba(255,255,255,0.48));
  border: 1px solid rgba(255,255,255,0.72);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.device-card::before {
  content: "";
  position: absolute;
  inset: -40% -30% auto auto;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(244, 123, 32, 0.18);
  filter: blur(10px);
}

.app-tile {
  position: relative;
  display: grid;
  gap: 18px;
}

.big-logo {
  width: 92px;
  height: 92px;
  border-radius: 24px;
  box-shadow: 0 24px 54px rgba(244, 123, 32, 0.28);
}

.metric-stack {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.metric {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(255,255,255,0.78);
}

.metric strong {
  display: block;
  font-size: 28px;
  letter-spacing: -0.04em;
}

.metric span {
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 64px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  padding: 28px;
  min-height: 210px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: 0 18px 50px rgba(18, 20, 24, 0.07);
}

.icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #ffb45f);
  font-weight: 800;
  margin-bottom: 18px;
}

.card:nth-child(2n) .icon { background: linear-gradient(135deg, var(--accent-2), #77a7ff); }
.card:nth-child(3n) .icon { background: linear-gradient(135deg, #20242a, #69707a); }

.card p,
.copy p,
.copy li,
.support-list li {
  color: var(--muted);
  line-height: 1.72;
  font-size: 16px;
}

.panel {
  padding: 38px;
  border-radius: 34px;
  background: rgba(255,255,255,0.68);
  border: 1px solid rgba(255,255,255,0.74);
  box-shadow: var(--shadow);
}

.copy {
  max-width: 880px;
  padding: 72px 0;
}

.copy section {
  margin: 34px 0;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--line);
}

.copy section:last-child { border-bottom: 0; }

.copy ul,
.support-list {
  padding-left: 1.2em;
}

.footer {
  padding: 42px 0 56px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer a { color: var(--muted); margin-left: 14px; }

@media (max-width: 860px) {
  .nav-inner { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  .links { justify-content: flex-start; }
  .hero { grid-template-columns: 1fr; padding-top: 56px; }
  .device-card { min-height: auto; }
  .grid { grid-template-columns: 1fr; }
  .panel, .card { padding: 24px; }
  .shell { width: min(100% - 28px, 1120px); }
}