:root {
  color-scheme: light;
  --ink: #101114;
  --muted: #6b7280;
  --soft: #f5f7f8;
  --panel: rgba(255, 255, 255, 0.76);
  --panel-strong: rgba(255, 255, 255, 0.92);
  --line: rgba(15, 23, 42, 0.10);
  --accent: #007a73;
  --accent-2: #0a67b2;
  --accent-3: #d97706;
  --shadow: 0 28px 80px rgba(15, 23, 42, 0.12);
  --radius-lg: 34px;
  --radius-md: 24px;
  --radius-sm: 18px;
  --max: 1120px;
}

* { 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", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 10% 0%, rgba(0, 122, 115, 0.16), transparent 34rem),
    radial-gradient(circle at 92% 12%, rgba(10, 103, 178, 0.15), transparent 30rem),
    linear-gradient(180deg, #fbfcfd 0%, #f4f7f8 42%, #ffffff 100%);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
p { color: var(--muted); line-height: 1.78; margin: 0; }
strong { color: var(--ink); }

.site-shell { min-height: 100vh; overflow: hidden; }
.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  background: rgba(250, 252, 253, 0.72);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}
.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 720;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  box-shadow: 0 10px 26px rgba(0, 122, 115, 0.18);
}
.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  color: rgba(16, 17, 20, 0.72);
}
.nav-links a {
  padding: 9px 12px;
  border-radius: 999px;
}
.nav-links a:hover,
.nav-links a.active {
  background: rgba(0, 122, 115, 0.10);
  color: var(--ink);
}
.lang-switch {
  margin-left: 6px;
  padding: 9px 13px;
  border-radius: 999px;
  background: rgba(16, 17, 20, 0.06);
  color: var(--ink);
  font-weight: 650;
}

main { max-width: var(--max); margin: 0 auto; padding: 0 22px 78px; }
.hero {
  min-height: 640px;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(310px, 0.76fr);
  align-items: center;
  gap: 44px;
  padding: 76px 0 52px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  background: rgba(0, 122, 115, 0.10);
  border: 1px solid rgba(0, 122, 115, 0.12);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 700;
}
h1 {
  margin: 22px 0 18px;
  font-size: clamp(48px, 8vw, 92px);
  line-height: 0.96;
  letter-spacing: -0.075em;
  font-weight: 820;
}
.hero-copy {
  max-width: 650px;
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.55;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 720;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
}
.button.primary { background: #111318; color: #fff; box-shadow: 0 14px 30px rgba(16, 17, 20, 0.18); }
.button.secondary { background: rgba(255,255,255,0.72); border-color: var(--line); color: var(--ink); }
.product-card {
  position: relative;
  border-radius: 42px;
  min-height: 490px;
  padding: 28px;
  background:
    linear-gradient(145deg, rgba(255,255,255,0.88), rgba(255,255,255,0.50)),
    radial-gradient(circle at 28% 18%, rgba(0, 122, 115, 0.28), transparent 17rem),
    radial-gradient(circle at 80% 78%, rgba(10, 103, 178, 0.20), transparent 16rem);
  border: 1px solid rgba(255,255,255,0.8);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.product-card:after {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: 32px;
  border: 1px solid rgba(16, 17, 20, 0.06);
  pointer-events: none;
}
.logo-stage {
  width: 112px;
  height: 112px;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 28px 60px rgba(0, 122, 115, 0.28);
}
.logo-stage img { width: 100%; height: 100%; object-fit: cover; display: block; }
.device-lines { position: absolute; left: 28px; right: 28px; bottom: 28px; display: grid; gap: 12px; }
.line-card {
  border-radius: 22px;
  padding: 16px;
  background: rgba(255,255,255,0.68);
  border: 1px solid rgba(255,255,255,0.75);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
}
.line-top { display: flex; justify-content: space-between; gap: 16px; font-weight: 720; }
.line-bottom { margin-top: 8px; color: var(--muted); font-size: 14px; }
.metric { color: var(--accent); }

.section { padding: 36px 0; }
.section-head { max-width: 760px; margin-bottom: 24px; }
.kicker { color: var(--accent); font-weight: 760; font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; }
h2 { margin: 9px 0 12px; font-size: clamp(32px, 4vw, 54px); line-height: 1.05; letter-spacing: -0.055em; }
h3 { margin: 0 0 10px; font-size: 21px; letter-spacing: -0.025em; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid.two { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.82);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.07);
}
.card .icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  margin-bottom: 16px;
  background: rgba(0, 122, 115, 0.10);
  color: var(--accent);
  font-weight: 800;
}
.feature-list { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
.feature-list li {
  display: flex;
  gap: 10px;
  color: var(--muted);
  line-height: 1.7;
}
.feature-list li:before {
  content: "";
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  margin-top: 11px;
  border-radius: 999px;
  background: var(--accent);
}
.statement {
  padding: 34px;
  border-radius: var(--radius-lg);
  background: #111318;
  color: #fff;
  box-shadow: 0 28px 80px rgba(17, 19, 24, 0.22);
}
.statement p { color: rgba(255,255,255,0.72); font-size: 18px; }
.statement h2 { color: #fff; }

.page-hero { padding: 78px 0 30px; max-width: 850px; }
.page-hero h1 { font-size: clamp(44px, 6vw, 76px); }
.content-panel {
  background: var(--panel-strong);
  border: 1px solid rgba(255,255,255,0.86);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 5vw, 46px);
  box-shadow: var(--shadow);
}
.content-panel section + section { margin-top: 34px; padding-top: 30px; border-top: 1px solid var(--line); }
.content-panel ul { margin: 14px 0 0; padding-left: 20px; color: var(--muted); line-height: 1.82; }
.content-panel li + li { margin-top: 6px; }
.support-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 22px; }
.support-card { background: rgba(245,247,248,0.84); border: 1px solid var(--line); border-radius: 22px; padding: 20px; }
.footer { max-width: var(--max); margin: 0 auto; padding: 28px 22px 42px; color: var(--muted); border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; font-size: 14px; }
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; }

@media (max-width: 860px) {
  .nav { align-items: flex-start; }
  .nav-links { gap: 0; flex-wrap: wrap; justify-content: flex-end; }
  .nav-links a { padding: 8px 9px; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 52px; }
  .product-card { min-height: 420px; }
  .grid, .grid.two, .support-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .nav { padding: 12px 16px; gap: 12px; }
  .brand span { display: none; }
  main { padding-inline: 16px; }
  h1 { letter-spacing: -0.06em; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .product-card { border-radius: 30px; padding: 22px; }
  .device-lines { left: 22px; right: 22px; bottom: 22px; }
  .content-panel { border-radius: 28px; }
  .footer { padding-inline: 16px; }
}