* {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #526170;
  --subtle: #eef2f6;
  --soft: #f7f9fb;
  --line: #dfe6ee;
  --brand: #1763e8;
  --brand-deep: #0f3f98;
  --accent: #0f766e;
  --paper: #ffffff;
  --shadow: 0 16px 34px rgba(23, 32, 42, 0.08);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.72;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  color: var(--brand-deep);
}

.wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
}

.nav,
.footer-links {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  color: var(--ink);
  font-size: 17px;
  font-weight: 800;
}

.nav nav,
.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav nav a {
  color: #344150;
  font-size: 14px;
  font-weight: 650;
}

.hero {
  padding: 78px 0 86px;
  background:
    linear-gradient(135deg, rgba(23, 99, 232, 0.1), rgba(15, 118, 110, 0.08)),
    var(--soft);
}

.hero-grid,
.split,
.credential,
.policies {
  display: grid;
  gap: 44px;
  align-items: center;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.15fr) minmax(310px, 0.85fr);
}

.split {
  grid-template-columns: 0.55fr 1.45fr;
  align-items: start;
}

.credential {
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
}

.policies {
  grid-template-columns: minmax(0, 1fr) auto;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

h1,
h2,
h3 {
  margin: 0 0 14px;
  color: var(--ink);
  line-height: 1.28;
}

h1 {
  max-width: 760px;
  font-size: 42px;
}

h2 {
  font-size: 28px;
}

h3 {
  font-size: 20px;
}

p {
  margin: 0;
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button,
.policy-links a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--brand);
  background: var(--brand);
  color: #ffffff;
  font-weight: 750;
}

.button:hover,
.policy-links a:hover {
  background: var(--brand-deep);
  color: #ffffff;
}

.button.ghost {
  background: #ffffff;
  color: var(--brand);
}

.button.ghost:hover {
  background: #edf4ff;
  color: var(--brand-deep);
}

.hero-panel,
.card,
.license-card {
  border: 1px solid var(--line);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 28px;
}

.hero-panel > div {
  padding: 18px 0;
  border-bottom: 1px solid var(--subtle);
}

.hero-panel > div:first-child {
  padding-top: 0;
}

.hero-panel > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.panel-label {
  display: block;
  margin-bottom: 4px;
  color: #657486;
  font-size: 14px;
}

.hero-panel strong {
  display: block;
  font-size: 20px;
  line-height: 1.45;
}

.section {
  padding: 64px 0;
}

.muted {
  background: var(--soft);
}

.section-head {
  max-width: 780px;
  margin-bottom: 26px;
}

.section-head p,
.copy-block p,
.credential-copy p,
.notice p,
.policies p,
.card p,
.steps p,
.prose {
  color: var(--muted);
}

.copy-block {
  display: grid;
  gap: 14px;
}

.grid {
  display: grid;
  gap: 20px;
}

.cards-three {
  grid-template-columns: repeat(3, 1fr);
}

.cards-four {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  min-height: 186px;
  padding: 24px;
}

.card.compact {
  min-height: 150px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  min-height: 190px;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.steps span {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  background: var(--ink);
  color: #ffffff;
  font-weight: 800;
}

.steps strong {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
}

.facts {
  display: grid;
  gap: 0;
  margin: 26px 0 0;
}

.facts div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--subtle);
}

.facts dt {
  color: #657486;
}

.facts dd {
  margin: 0;
  color: var(--ink);
  font-weight: 750;
}

.license-card {
  margin: 0;
  padding: 14px;
}

.license-card img {
  display: block;
  width: 100%;
  aspect-ratio: 1.42 / 1;
  object-fit: contain;
  background: #f1f4f7;
}

.license-card figcaption {
  margin-top: 10px;
  color: #657486;
  font-size: 14px;
  text-align: center;
}

.notice {
  max-width: 860px;
}

.policy-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.page {
  padding: 58px 0 82px;
}

.prose {
  max-width: 860px;
}

.prose h1 {
  font-size: 36px;
}

.prose h2 {
  margin-top: 30px;
  font-size: 22px;
}

.prose p + p {
  margin-top: 12px;
}

.updated {
  margin: -4px 0 20px;
  color: #657486;
  font-size: 14px;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: #657486;
}

.footer-links {
  justify-content: flex-start;
}

@media (max-width: 960px) {
  .hero-grid,
  .split,
  .credential,
  .policies,
  .cards-three,
  .cards-four,
  .steps {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 58px 0 66px;
  }

  h1 {
    font-size: 32px;
  }

  .policies {
    align-items: start;
  }
}

@media (max-width: 720px) {
  .nav,
  .footer-links {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 14px 0;
  }

  .nav nav {
    gap: 10px 14px;
  }

  .section {
    padding: 48px 0;
  }

  .facts div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .card,
  .steps li,
  .hero-panel {
    padding: 20px;
  }
}