:root {
  color-scheme: light;
  --ink: #111318;
  --muted: #5f6673;
  --soft: #f5f6f8;
  --line: rgba(17, 19, 24, 0.1);
  --glass: rgba(255, 255, 255, 0.72);
  --accent: #0071e3;
  --accent-ink: #04345f;
  --radius-xl: 36px;
  --radius-lg: 24px;
  --shadow: 0 24px 70px rgba(20, 25, 35, 0.1);
}

* { 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 20% 0%, rgba(0, 113, 227, 0.13), transparent 32rem),
    radial-gradient(circle at 88% 8%, rgba(90, 200, 250, 0.16), transparent 28rem),
    linear-gradient(180deg, #fbfbfd 0%, #f5f6f8 46%, #ffffff 100%);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: saturate(180%) blur(22px);
  background: rgba(251, 251, 253, 0.78);
  border-bottom: 1px solid rgba(17, 19, 24, 0.06);
}

.nav {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 760;
  letter-spacing: -0.02em;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.12);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 620;
  white-space: nowrap;
}

.lang-pill {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
}

main { width: min(1120px, calc(100% - 36px)); margin: 0 auto; }
.hero {
  min-height: 76vh;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.92fr);
  align-items: center;
  gap: 52px;
  padding: 74px 0 56px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 8px 13px;
  color: var(--accent-ink);
  background: rgba(0, 113, 227, 0.1);
  border: 1px solid rgba(0, 113, 227, 0.16);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 760;
}

h1 {
  margin: 0;
  font-size: clamp(52px, 8vw, 104px);
  line-height: 0.95;
  letter-spacing: -0.065em;
  font-weight: 820;
}

.hero-copy {
  margin: 24px 0 0;
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.24;
  letter-spacing: -0.032em;
  font-weight: 520;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 720;
  letter-spacing: -0.01em;
}
.button.primary { color: #fff; background: var(--accent); box-shadow: 0 16px 36px rgba(0, 113, 227, 0.24); }
.button.secondary { color: var(--accent); background: rgba(0, 113, 227, 0.09); }

.product-card {
  position: relative;
  min-height: 520px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.48)),
    radial-gradient(circle at 50% 12%, rgba(0, 113, 227, 0.16), transparent 20rem);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: grid;
  place-items: center;
}

.logo-orb {
  width: min(64%, 320px);
  aspect-ratio: 1;
  border-radius: 32%;
  padding: 26px;
  background: linear-gradient(180deg, rgba(255,255,255,0.86), rgba(255,255,255,0.54));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.75), 0 40px 90px rgba(0, 72, 140, 0.18);
}
.logo-orb img { width: 100%; height: 100%; object-fit: contain; border-radius: 28%; display: block; }

.float-card {
  position: absolute;
  left: 30px;
  right: 30px;
  bottom: 30px;
  padding: 18px;
  border: 1px solid rgba(17, 19, 24, 0.08);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
}
.float-card strong { display: block; margin-bottom: 6px; letter-spacing: -0.02em; }
.float-card span { color: var(--muted); font-size: 14px; line-height: 1.5; }

.section { padding: 74px 0; }
.section.compact { padding-top: 42px; }
.section-title {
  max-width: 760px;
  margin: 0 auto 34px;
  text-align: center;
}
.section-title h2,
.page-hero h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.052em;
  font-weight: 820;
}
.section-title p,
.page-hero p {
  margin: 16px auto 0;
  max-width: 700px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.55;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.card {
  padding: 28px;
  border: 1px solid rgba(17, 19, 24, 0.08);
  border-radius: var(--radius-lg);
  background: var(--glass);
  box-shadow: 0 18px 48px rgba(20, 25, 35, 0.06);
  backdrop-filter: blur(18px);
}
.card h3 { margin: 0 0 10px; font-size: 22px; letter-spacing: -0.035em; }
.card p, .card li { color: var(--muted); line-height: 1.72; font-size: 16px; }
.card p { margin: 0; }
.card ul { margin: 0; padding-left: 1.15rem; }

.page-hero { padding: 72px 0 36px; text-align: center; }
.doc {
  max-width: 860px;
  margin: 0 auto 78px;
  padding: clamp(26px, 5vw, 56px);
  border: 1px solid rgba(17, 19, 24, 0.08);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}
.doc h2 { margin: 34px 0 12px; font-size: 28px; letter-spacing: -0.035em; }
.doc h2:first-child { margin-top: 0; }
.doc p, .doc li { color: var(--muted); line-height: 1.82; font-size: 17px; }
.doc ul { padding-left: 1.25rem; }
.notice {
  padding: 18px 20px;
  border-radius: 22px;
  color: var(--accent-ink);
  background: rgba(0, 113, 227, 0.09);
  border: 1px solid rgba(0, 113, 227, 0.14);
}

.footer {
  border-top: 1px solid rgba(17, 19, 24, 0.08);
  background: rgba(255, 255, 255, 0.58);
}
.footer-inner {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 28px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 13px;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 14px; }

@media (max-width: 860px) {
  .nav { min-height: auto; padding: 13px 0; align-items: flex-start; }
  .nav, .footer-inner { flex-direction: column; }
  .nav-links { width: 100%; overflow-x: auto; justify-content: flex-start; padding-bottom: 4px; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 50px; gap: 32px; }
  .product-card { min-height: 420px; }
  .grid { grid-template-columns: 1fr; }
  .section { padding: 52px 0; }
  .footer-inner { align-items: flex-start; }
}