:root {
  color-scheme: light;
  --ink: #10243b;
  --muted: #5c7188;
  --line: #d7e2ed;
  --surface: #ffffff;
  --soft: #f4f8fc;
  --blue: #1477d4;
  --blue-deep: #0b4d95;
  --teal: #16a9a2;
  --shadow: 0 24px 70px rgba(28, 77, 123, .13);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #edf6ff 0, #fff 36rem);
  line-height: 1.65;
}
a { color: var(--blue-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(16px); background: rgba(255,255,255,.86); border-bottom: 1px solid rgba(215,226,237,.75); }
.nav { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 760; letter-spacing: -.02em; color: var(--ink); }
.brand img { width: 32px; height: 32px; border-radius: 8px; box-shadow: 0 4px 12px rgba(20,119,212,.25); }
.nav-links { display: flex; align-items: center; gap: 24px; font-size: 14px; }
.nav-links a { color: var(--muted); }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 44px; padding: 0 18px; border-radius: 12px; border: 1px solid var(--line); font-weight: 650; background: var(--surface); color: var(--ink); }
.button.primary { background: var(--blue); color: white; border-color: var(--blue); box-shadow: 0 9px 20px rgba(20,119,212,.22); }
.button:hover { text-decoration: none; transform: translateY(-1px); }
.hero { padding: 92px 0 76px; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 64px; }
.eyebrow { color: var(--blue-deep); font-size: 13px; font-weight: 760; letter-spacing: .12em; text-transform: uppercase; }
h1 { margin: 14px 0 18px; max-width: 680px; font-size: clamp(38px, 6vw, 68px); line-height: 1.08; letter-spacing: -.055em; }
.lead { margin: 0; max-width: 600px; color: var(--muted); font-size: 19px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-card { padding: 16px; border: 1px solid rgba(215,226,237,.9); border-radius: 22px; background: rgba(255,255,255,.75); box-shadow: var(--shadow); }
.hero-card img { width: 100%; display: block; border-radius: 13px; border: 1px solid var(--line); }
.caption { margin: 12px 4px 0; color: var(--muted); font-size: 13px; }
section { padding: 80px 0; }
.section-head { max-width: 700px; margin-bottom: 30px; }
h2 { margin: 0 0 10px; font-size: clamp(28px, 4vw, 42px); line-height: 1.15; letter-spacing: -.04em; }
.section-head p { margin: 0; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: 17px; box-shadow: 0 12px 34px rgba(28,77,123,.06); }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.split { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 46px; }
.split img { width: 100%; border-radius: 17px; border: 1px solid var(--line); box-shadow: 0 18px 40px rgba(28,77,123,.1); }
.checklist { margin: 22px 0 0; padding: 0; list-style: none; }
.checklist li { position: relative; padding: 8px 0 8px 28px; color: var(--muted); }
.checklist li::before { content: "✓"; position: absolute; left: 0; top: 8px; color: var(--teal); font-weight: 800; }
.notice { padding: 24px; border-left: 4px solid var(--teal); border-radius: 12px; background: #edfafa; color: #255e63; }
.prose { max-width: 800px; }
.prose h1 { font-size: clamp(34px, 5vw, 54px); }
.prose h2 { margin-top: 36px; font-size: 28px; }
.prose h3 { margin-top: 25px; font-size: 20px; }
.prose p, .prose li { color: var(--muted); }
.prose li { margin: 7px 0; }
footer { padding: 35px 0 50px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 10px; }
.kicker { color: var(--blue-deep); font-weight: 740; }
@media (max-width: 820px) {
  .hero, .split { grid-template-columns: 1fr; gap: 34px; }
  .hero { padding-top: 58px; }
  .grid { grid-template-columns: 1fr; }
  .nav-links { gap: 12px; }
  .nav-links a:not(.button) { display: none; }
}