:root {
  --bg: #f7fbff;
  --bg-soft: #eaf7ff;
  --card: rgba(255, 255, 255, 0.8);
  --text: #10233f;
  --muted: #58708e;
  --primary: #0ea5e9;
  --primary-strong: #2563eb;
  --border: rgba(37, 99, 235, 0.14);
  --shadow: 0 24px 70px rgba(37, 99, 235, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(120deg, rgba(37, 99, 235, 0.08) 0 1px, transparent 1px 120px),
    linear-gradient(30deg, rgba(6, 182, 212, 0.08) 0 1px, transparent 1px 140px),
    radial-gradient(circle at top left, rgba(14, 165, 233, 0.24), transparent 30%),
    radial-gradient(circle at right, rgba(20, 184, 166, 0.18), transparent 28%),
    linear-gradient(180deg, #f7fbff 0%, #eef9ff 48%, #ffffff 100%);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1160px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid rgba(37, 99, 235, 0.12);
  box-shadow: 0 12px 36px rgba(37, 99, 235, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  box-shadow: 0 12px 24px rgba(14, 165, 233, 0.2);
}

.brand-en,
.footer-title {
  margin: 0;
}

.footer-title {
  font-weight: 700;
}

.brand-en {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 24px;
  color: #385574;
  font-size: 14px;
  font-weight: 600;
}

.hero {
  padding: 88px 0 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(14, 165, 233, 0.11);
  color: #0369a1;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

h1 {
  margin: 18px 0 18px;
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.06;
}

h2 {
  margin: 16px 0 0;
  font-size: clamp(28px, 4vw, 42px);
}

h3 {
  margin: 0 0 12px;
  font-size: 22px;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.hero-text {
  max-width: 680px;
  font-size: 17px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin: 32px 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #06b6d4, #14b8a6);
  color: #ffffff;
  box-shadow: 0 14px 30px rgba(14, 165, 233, 0.28);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--border);
  color: #16456f;
}

.hero-points {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.hero-points li::before {
  content: "•";
  color: #06b6d4;
  margin-right: 10px;
}

.hero-card,
.card,
.advantage-item,
.cta-box {
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-card {
  padding: 28px;
  border-radius: 28px;
}

.metric + .metric {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(37, 99, 235, 0.12);
}

.metric span {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  color: #617894;
}

.metric strong {
  font-size: 24px;
}

.section {
  padding: 72px 0;
}

.alt {
  background: linear-gradient(180deg, rgba(234, 247, 255, 0.72), rgba(255, 255, 255, 0.72));
}

.section-heading {
  margin-bottom: 28px;
}

.card-grid,
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.card,
.advantage-item {
  padding: 28px;
  border-radius: 24px;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 18px;
  padding: 24px;
  border-radius: 22px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 18px 42px rgba(37, 99, 235, 0.08);
}

.timeline-item span {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(6, 182, 212, 0.14));
  color: #0369a1;
  font-weight: 700;
}

.cta-box {
  border-radius: 32px;
  padding: 32px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.site-footer {
  border-top: 1px solid rgba(37, 99, 235, 0.12);
  padding: 28px 0 40px;
  background: rgba(255, 255, 255, 0.55);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 900px) {
  .hero-grid,
  .card-grid,
  .advantage-grid,
  .cta-box,
  .footer-inner {
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 14px;
  }

  .hero {
    padding-top: 52px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 32px, 1160px);
  }

  h1 {
    font-size: 36px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }
}