:root {
  --navy: #1F4E78;
  --navy-dark: #143349;
  --accent: #2E9E6C;
  --bg: #F7F9FB;
  --text: #1E2A32;
  --muted: #5B6B75;
  --border: #E3E9ED;
}
* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  margin: 0;
}
header.nav {
  background: rgba(255,255,255,0.95);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
}
.nav-inner { max-width: 780px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.logo { font-weight: 800; font-size: 19px; color: var(--navy-dark); text-decoration: none; }
.logo span { color: var(--accent); }
.back-link { font-size: 14px; font-weight: 600; color: var(--navy); text-decoration: none; }
main { max-width: 780px; margin: 0 auto; padding: 56px 24px 80px; }
h1 { font-size: 30px; font-weight: 800; color: var(--navy-dark); margin-bottom: 6px; letter-spacing: -0.5px; }
.updated { color: var(--muted); font-size: 13.5px; margin-bottom: 40px; }
h2 { font-size: 19px; font-weight: 700; color: var(--navy-dark); margin: 36px 0 12px; }
p, li { font-size: 15.5px; color: var(--text); }
p { margin: 0 0 14px; }
ul { margin: 0 0 14px; padding-left: 22px; }
li { margin-bottom: 6px; }
a { color: var(--navy); }
.box {
  background: #fff; border: 1px solid var(--border); border-radius: 10px;
  padding: 16px 20px; margin-bottom: 28px; font-size: 14px; color: var(--muted);
}
footer { text-align: center; padding: 32px 24px 48px; color: var(--muted); font-size: 13px; }
footer a { color: var(--navy); font-weight: 600; text-decoration: none; }