* { margin: 0; padding: 0; box-sizing: border-box; }
:root { --bg: #F5F8F6; --card: #FFFFFF; --accent: #2D5A3D; --text: #1A1A1A; --muted: #4A4A4A; --line: #CCDDD2; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #151A17; --card: #1F2621; --accent: #8CC7A0; --text: #EEF3EF; --muted: #C2CCC5; --line: #33413A; }
}
body { background: var(--bg); color: var(--text); font-family: -apple-system, "Segoe UI", Roboto, sans-serif; line-height: 1.6; }
main { max-width: 720px; margin: 0 auto; padding: 48px 16px 64px; }
h1 { font-size: 1.9rem; line-height: 1.25; margin-bottom: 8px; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; color: var(--accent); }
h3 { font-size: 1rem; margin: 20px 0 6px; }
p, li { margin-bottom: 10px; }
ul, ol { padding-left: 22px; }
a { color: var(--accent); }
.stand { color: var(--muted); font-size: .9rem; }
.box { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px 20px; margin: 16px 0; }
.box li:last-child, .box p:last-child { margin-bottom: 0; }
footer { max-width: 720px; margin: 0 auto; padding: 0 16px 40px; color: var(--muted); font-size: .9rem; }
footer a { margin-right: 16px; }
.hero { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.hero img { width: 72px; height: 72px; border-radius: 16px; }