:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #202331; background: #f6f7fb; }
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.65; }
main { width: min(760px, calc(100% - 32px)); margin: 32px auto; padding: clamp(24px, 5vw, 56px); background: #fff; border: 1px solid #dfe2ec; border-radius: 18px; box-shadow: 0 12px 40px rgb(30 34 50 / 8%); }
a { color: #4f46e5; }
h1, h2 { line-height: 1.25; color: #151824; }
h1 { margin: 0 0 8px; font-size: clamp(2rem, 6vw, 3rem); }
h2 { margin-top: 2rem; font-size: 1.25rem; }
.brand { color: #4f46e5; font-weight: 750; letter-spacing: .02em; }
.meta { color: #62697a; }
.notice { margin: 24px 0; padding: 14px 16px; border: 1px solid #f0c36d; border-radius: 10px; background: #fff9e8; color: #6f4b08; }
nav { display: flex; gap: 16px; padding-bottom: 20px; border-bottom: 1px solid #e5e7ef; }
footer { margin-top: 40px; padding-top: 20px; border-top: 1px solid #e5e7ef; color: #62697a; font-size: .9rem; }
li + li { margin-top: .45rem; }
@media (max-width: 520px) { main { width: 100%; margin: 0; border: 0; border-radius: 0; box-shadow: none; } }