* { box-sizing: border-box; }
body { margin: 0; padding: 24px; background: #e3e9ec; color: #172128; font: 18px/1.5 system-ui, sans-serif; }
.notice { max-width: 520px; margin: 24px auto; padding: 32px; background: #efc55b; border: 4px solid #172128; }
.location { font-size: 14px; }
.notice h1 { font-size: 48px; line-height: 1.05; letter-spacing: -0.04em; }
.notice a { color: #172128; text-underline-offset: 4px; font-weight: 700; }
.notice a:focus-visible { outline: 3px solid #0756d4; outline-offset: 4px; }