:root { color-scheme: light; font-family: system-ui, -apple-system, "Segoe UI", "Yu Gothic", sans-serif; color: #203047; background: #f3f7fb; line-height: 1.75; }
* { box-sizing: border-box; }
body { margin: 0; padding: 24px 16px; }
main { max-width: 860px; margin: auto; padding: clamp(20px, 5vw, 48px); background: white; border-radius: 16px; }
a { color: #075ba9; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid #e99713; outline-offset: 4px; }
nav { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-bottom: 28px; }
h1 { line-height: 1.3; font-size: clamp(1.6rem, 5vw, 2.2rem); }
h2 { margin-top: 32px; font-size: 1.25rem; }
h3 { font-size: 1.05rem; }
p, li { overflow-wrap: anywhere; }
li { margin-bottom: 8px; }
section { scroll-margin-top: 24px; }
.notice { padding: 16px 20px; background: #fff5de; border-left: 4px solid #b57400; }
.meta { color: #526579; font-size: .95rem; }
.contact { padding: 20px; background: #edf6ff; border-radius: 8px; }
hr { border: 0; border-top: 1px solid #d9e3ef; margin: 48px 0; }
footer { margin-top: 40px; color: #526579; font-size: .9rem; }