:root {
  --blue: #1d4ed8;
  --blue-deep: #1e40af;
  --blue-soft: #eff6ff;
  --ink: #0f172a;
  --ink-soft: #475569;
  --line: #e2e8f0;
  --mist: #f8fafc;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color: var(--ink);
  line-height: 1.65;
  background: #fff;
}
a { color: var(--blue-deep); }
.wrap { max-width: 820px; margin: 0 auto; padding: 0 24px; }

header.site { display: flex; align-items: center; justify-content: space-between; padding: 26px 0; }
header.site .logo { display: flex; align-items: center; text-decoration: none; }
header.site nav a { margin-left: 26px; text-decoration: none; font-size: 15px; color: var(--ink-soft); }
header.site nav a:hover { color: var(--blue-deep); }

.hero { padding: 72px 0 84px; border-bottom: 1px solid var(--line); }
.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.12; letter-spacing: -0.025em; max-width: 720px; }
.hero h1 em { font-style: normal; color: var(--blue); }
.hero p.sub { margin-top: 22px; font-size: clamp(17px, 2.1vw, 20px); color: var(--ink-soft); max-width: 620px; }
.cta-row { margin-top: 34px; display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 13px 26px; border-radius: 8px; font-weight: 600; text-decoration: none; font-size: 16px; }
.btn.primary { background: var(--blue); color: #fff; }
.btn.primary:hover { background: var(--blue-deep); }
.btn.ghost { border: 1px solid var(--line); color: var(--ink); }
.btn.ghost:hover { border-color: var(--ink-soft); }
.hero .fine { margin-top: 18px; font-size: 14px; color: #64748b; }

section { padding: 64px 0; }
section.alt { background: var(--mist); border-bottom: 1px solid var(--line); }
h2 { font-size: clamp(24px, 3.2vw, 32px); letter-spacing: -0.02em; line-height: 1.2; }
.kicker { text-transform: uppercase; letter-spacing: 0.08em; font-size: 12.5px; font-weight: 700; color: var(--blue); margin-bottom: 10px; }
section p.lede { margin-top: 14px; font-size: 17.5px; color: var(--ink-soft); max-width: 680px; }

.points { margin-top: 36px; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 28px; }
.point h3 { font-size: 16.5px; margin-bottom: 6px; }
.point p { font-size: 15px; color: var(--ink-soft); }
.point .rule { width: 28px; height: 3px; background: var(--blue); border-radius: 2px; margin-bottom: 14px; }

.stats { margin-top: 36px; display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 18px; }
.stat { border-left: 3px solid var(--blue); padding-left: 16px; }
.stat b { display: block; font-size: 26px; letter-spacing: -0.02em; }
.stat span { font-size: 14px; color: var(--ink-soft); }

.closer { text-align: center; padding: 76px 0; }
.closer p { margin-top: 12px; color: var(--ink-soft); }
.closer .cta-row { justify-content: center; }

footer { padding: 30px 0 44px; font-size: 14px; color: #64748b; border-top: 1px solid var(--line); }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
footer a { color: #64748b; }

/* article page */
article { padding: 40px 0 80px; }
article .wrap { max-width: 700px; }
article h1 { font-size: clamp(28px, 4.2vw, 40px); line-height: 1.15; letter-spacing: -0.02em; }
article .byline { margin: 16px 0 36px; color: #64748b; font-size: 15px; }
article h2 { font-size: 25px; margin: 44px 0 12px; letter-spacing: -0.015em; }
article h3 { font-size: 19px; margin: 34px 0 10px; }
article p { margin: 14px 0; font-size: 17px; }
article blockquote {
  margin: 18px 0; padding: 14px 20px; background: var(--blue-soft);
  border-left: 3px solid var(--blue); border-radius: 6px; font-size: 16px;
}
article table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 15.5px; }
article td, article th { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; }
article td:last-child { font-weight: 600; }
article code { background: var(--mist); border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; font-size: 0.9em; }
article hr { border: none; border-top: 1px solid var(--line); margin: 40px 0; }
article .fine { color: #64748b; font-size: 15px; }
article ul.trust li { margin: 12px 0 12px 20px; font-size: 16px; color: var(--ink-soft); }
article ul.trust li b { color: var(--ink); }