:root {
  --ink: #10233f;
  --muted: #5d6b7d;
  --line: #dce4eb;
  --blue: #176db3;
  --blue-dark: #0d4e83;
  --teal: #0d887d;
  --tint: #f3f8fb;
  --white: #fff;
  --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

a { color: inherit; }

img { display: block; max-width: 100%; }

.container {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.narrow { max-width: 860px; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 8px 14px;
  color: #fff;
  background: #000;
  transform: translateY(-150%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgba(16, 35, 63, .1);
  background: rgba(255, 255, 255, .96);
}

.nav-wrap {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .02em;
}

.brand img { width: 155px; height: auto; }

nav { display: flex; align-items: center; gap: 24px; }

nav a {
  padding: 8px 0;
  text-align: center;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
}

nav a:hover, nav a:focus-visible, nav a[aria-current="page"] { color: var(--blue); }

nav small { color: var(--muted); font-size: 10px; font-weight: 600; letter-spacing: .08em; }

.hero {
  overflow: hidden;
  padding: 96px 0 82px;
  background:
    radial-gradient(circle at 83% 18%, rgba(13, 136, 125, .16), transparent 27%),
    linear-gradient(145deg, #f7fbfe 0%, #eef6fb 55%, #fff 100%);
}

.hero-grid, .split, .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr);
  gap: 64px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 15px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .13em;
  overflow-wrap: anywhere;
}

h1, h2, h3 { margin-top: 0; line-height: 1.25; }

h1 { margin-bottom: 25px; font-size: clamp(38px, 5.2vw, 66px); letter-spacing: -.035em; }

h2 { margin-bottom: 22px; font-size: clamp(28px, 3vw, 42px); letter-spacing: -.02em; }

h3 { margin-bottom: 12px; font-size: 20px; }

p { margin: 0 0 18px; }

.lead { max-width: 720px; color: #33465e; font-size: 19px; }

.en { color: var(--muted); }

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

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border: 1px solid var(--blue);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 750;
}

.button.primary { color: #fff; background: var(--blue); }
.button.primary:hover { background: var(--blue-dark); }
.button.secondary { color: var(--blue); background: #fff; }

.trust-card, .detail-card, .contact-card {
  border: 1px solid rgba(23, 109, 179, .17);
  border-radius: 18px;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 24px 70px rgba(31, 72, 105, .12);
}

.trust-card { padding: 34px; }
.trust-card h2 { font-size: 27px; }
.card-kicker { margin-bottom: 8px; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .15em; }

.check-list { margin: 22px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 12px 0 12px 31px; border-top: 1px solid var(--line); }
.check-list li::before { content: "✓"; position: absolute; left: 2px; color: var(--teal); font-weight: 900; }

.facts { border-block: 1px solid var(--line); }
.facts-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.facts-grid div { display: flex; align-items: center; gap: 16px; min-height: 120px; padding: 25px; border-right: 1px solid var(--line); }
.facts-grid div:last-child { border-right: 0; }
.facts-grid strong { color: var(--blue); font-size: 24px; white-space: nowrap; }
.facts-grid span { color: var(--muted); font-size: 13px; line-height: 1.45; }

.section { padding: 92px 0; scroll-margin-top: 78px; }
.section-tint { background: var(--tint); }
.section-heading { max-width: 820px; margin-bottom: 42px; }
.section-heading > p:last-child { color: var(--muted); font-size: 18px; }

.detail-card { margin: 0; padding: 12px 28px; box-shadow: none; }
.detail-card div { padding: 15px 0; border-bottom: 1px solid var(--line); }
.detail-card div:last-child { border-bottom: 0; }
.detail-card dt { color: var(--muted); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.detail-card dd { margin: 3px 0 0; font-weight: 700; }

.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.flow article, .policy-grid article { padding: 27px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.flow span { display: inline-block; margin-bottom: 18px; color: var(--teal); font-size: 13px; font-weight: 900; }
.flow p, .policy-grid li { color: var(--muted); font-size: 14px; }

.policy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 20px; }
.policy-grid ul { margin: 0; padding-left: 20px; }
.policy-grid li + li { margin-top: 9px; }
.policy-grid article p { margin: 0; color: var(--muted); font-size: 14px; }
.compact-grid { margin-top: 0; }
.compact-grid article { padding: 22px; }
.integration-flow { grid-template-columns: repeat(2, 1fr); }

.english-statement { margin-top: 20px; padding: 28px 30px; border-left: 4px solid var(--blue); background: #e8f2f8; }
.english-statement p { margin-bottom: 0; color: #324961; }

.dark-section { color: #fff; background: var(--ink); }
.dark-section .eyebrow { color: #72d1c7; }
.dark-section .en { color: #bfcbd8; }
.security-list { border: 1px solid rgba(255, 255, 255, .16); border-radius: 16px; }
.security-list div { display: grid; grid-template-columns: 150px 1fr; gap: 16px; padding: 18px 22px; border-bottom: 1px solid rgba(255, 255, 255, .13); }
.security-list div:last-child { border-bottom: 0; }
.security-list strong { color: #72d1c7; }
.security-list span { color: #d5dee7; }

.contact-grid { align-items: start; }
.text-link { color: var(--blue); font-weight: 800; text-decoration: none; }
.contact-card { padding: 15px 30px; font-style: normal; box-shadow: none; }
.contact-card p { padding: 13px 0; margin: 0; border-bottom: 1px solid var(--line); }
.contact-card p:last-child { border-bottom: 0; }
.contact-card span { display: block; color: var(--muted); font-size: 12px; font-weight: 700; }
.contact-card a { color: var(--blue); }

footer { padding: 46px 0 24px; color: #dfe6ed; background: #09172a; }
.footer-grid { display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; }
.footer-grid strong { color: #fff; font-size: 21px; }
.footer-grid p { margin-top: 4px; color: #9faebf; }
.footer-links { display: flex; flex-direction: column; gap: 8px; text-align: right; }
.footer-links a { color: #dfe6ed; }
.legal-note { padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .12); }
.legal-note p { margin: 0; color: #8192a5; font-size: 12px; }

.privacy-main { background: #f8fafc; }
.privacy-hero { padding: 80px 0 48px; border-bottom: 1px solid var(--line); background: #eef6fa; }
.privacy-hero h1 { margin-bottom: 18px; font-size: clamp(36px, 5vw, 58px); }
.privacy-hero .meta { margin-top: 28px; color: var(--muted); font-size: 14px; }
.privacy-content { padding: 52px 0 90px; }
.privacy-content section { margin-bottom: 42px; }
.privacy-content h2 { margin-bottom: 14px; font-size: 25px; }
.privacy-content p, .privacy-content li { color: #3e4d60; }
.privacy-content li + li { margin-top: 7px; }
.privacy-contact { padding: 28px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.privacy-contact a { color: var(--blue); }
.privacy-content hr { margin: 52px 0; border: 0; border-top: 1px solid var(--line); }

@media (max-width: 900px) {
  .nav-wrap { align-items: flex-start; flex-direction: column; gap: 12px; padding: 15px 0; }
  nav { width: 100%; gap: 18px; overflow-x: auto; padding-bottom: 4px; }
  nav a { flex: 0 0 auto; }
  .site-header { position: static; }
  .hero { padding-top: 64px; }
  .hero-grid, .split, .contact-grid { grid-template-columns: 1fr; gap: 38px; }
  .facts-grid, .flow { grid-template-columns: repeat(2, 1fr); }
  .facts-grid div:nth-child(2) { border-right: 0; }
  .facts-grid div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section { padding: 70px 0; }
}

@media (max-width: 560px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .brand img { width: 132px; }
  .brand span { display: none; }
  .hero { padding: 50px 0 58px; }
  h1 { font-size: 38px; }
  .lead { font-size: 17px; }
  .trust-card { padding: 25px; }
  .facts-grid, .flow, .policy-grid { grid-template-columns: 1fr; }
  .facts-grid div { min-height: 90px; border-right: 0; border-bottom: 1px solid var(--line); }
  .facts-grid div:last-child { border-bottom: 0; }
  .security-list div { grid-template-columns: 1fr; gap: 4px; }
  .footer-grid { flex-direction: column; }
  .footer-links { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}