:root { color-scheme: light; --bg: #f5f7fb; --text: #182e50; --muted: #56657b; --accent: #245bdb; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.8 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.wrap { width: min(100% - 44px, 840px); margin: auto; }
header { padding: 25px 0; border-bottom: 1px solid #344039; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.logo { color: var(--text); font-size: 28px; letter-spacing: -1px; font-weight: 750; text-decoration: none; }
.logo span, a { color: var(--accent); }
a { text-underline-offset: 4px; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
main { padding: 44px 0 55px; }
h1 { font-size: clamp(32px, 6vw, 48px); letter-spacing: -1.5px; line-height: 1.15; margin: 10px 0 20px; }
h2 { font-size: 22px; line-height: 1.4; margin: 35px 0 12px; }
p, li { color: var(--muted); }
strong { color: var(--text); }
.meta { font-size: 13px; }
.notice { background: #e7eef9; border-left: 3px solid var(--accent); padding: 17px 20px; margin: 24px 0; }
.notice p { margin: 0; }
li + li { margin-top: 10px; }
footer { border-top: 1px solid #344039; padding: 25px 0 35px; font-size: 13px; }
nav { display: flex; flex-wrap: wrap; gap: 12px 22px; }
dl { border: 1px solid #344039; padding: 20px; border-radius: 10px; }
dt { font-weight: 650; }
dd { color: var(--muted); margin: 0 0 16px; overflow-wrap: anywhere; }
dd:last-child { margin-bottom: 0; }