:root { color-scheme: light; font-family: Arial, sans-serif; }
body { margin: 0; background: #f7f8fa; color: #18202a; line-height: 1.65; }
main { max-width: 820px; margin: 0 auto; padding: 32px 20px 56px; }
.card { background: #fff; border-radius: 16px; padding: 24px; box-shadow: 0 2px 14px rgba(0,0,0,.06); }
h1,h2 { line-height: 1.25; }
a { color: #075ec8; }
nav { margin-bottom: 18px; }
.small { color: #5a6470; font-size: .94rem; }
.notice { border-left: 4px solid #075ec8; padding: 10px 14px; background: #eef6ff; }