* { box-sizing: border-box; }
html, body { margin: 0; background: #f4f8fb; color: #10273d; }
body { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; line-height: 1.55; font-size: 17px; }
main { max-width: 680px; margin: 0 auto; padding: max(24px, env(safe-area-inset-top)) 20px max(40px, env(safe-area-inset-bottom)); }
h1 { font-size: 30px; line-height: 1.2; margin: 8px 0 4px; color: #0f3a5f; }
h2 { font-size: 20px; margin: 28px 0 6px; color: #0f3a5f; }
p, li { color: #24394d; }
ul { padding-left: 22px; }
li { margin: 6px 0; }
a { color: #1769c2; }
.date { color: #4e6378; font-size: 15px; margin: 0 0 18px; }
.warn { background: #fff4f2; border: 1px solid #f1c3bb; color: #7a1d1d; padding: 10px 14px; border-radius: 10px; }
.back { display: inline-block; margin-top: 30px; }