body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", sans-serif; line-height: 1.8; color: #0f172a; margin: 0; background: #fff; }
    main { max-width: 880px; padding: 2rem 1.25rem 4rem; margin: 0 auto; }
    h1, h2, h3 { line-height: 1.3; margin: 1.6rem 0 0.6rem; }
    h1 { font-size: clamp(1.8rem, 3.2vw, 2.4rem); }
    h2 { font-size: clamp(1.3rem, 2.4vw, 1.6rem); }
    h3 { font-size: 1.1rem; }
    p { margin: 0.6rem 0; }
    ul { padding-left: 1.2rem; }
    li { margin: 0.4rem 0; }
    .note { background:#f8fafc; border:1px solid #e2e8f0; border-radius:12px; padding:1rem; }
    .faq dt { font-weight:700; margin-top:1rem; }
    .faq dd { margin:0.35rem 0 0.8rem 0; }
    a { color:#0f766e; text-decoration: underline; text-underline-offset: 2px; }
    .muted { color:#475569; }