* { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: 'Hiragino Kaku Gothic ProN', 'メイリオ', sans-serif; color: #2d2d2d; background: #f3fbfa; line-height: 1.8; }
    a { color: #007a75; text-underline-offset: 4px; }
    a:focus-visible { outline: 3px solid #0abab5; outline-offset: 5px; }
    header { background: #04302d; padding: 20px max(24px, calc((100% - 1000px) / 2)); display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
    header a { color: white; }
    header nav { display: flex; gap: 20px; flex-wrap: wrap; }
    .logo { font-size: 18px; font-weight: bold; text-decoration: none; }
    .logo span { color: #0abab5; }
    main { max-width: 1000px; margin: 0 auto; padding: 32px 24px 80px; }
    .breadcrumb { font-size: 14px; margin-bottom: 40px; }
    .label { color: #007a75; font-size: 12px; font-weight: bold; letter-spacing: .18em; }
    h1 { font-size: clamp(28px, 5vw, 40px); color: #04302d; margin: 8px 0 20px; }
    .intro { max-width: 760px; margin-bottom: 32px; }
    .questions { padding: 24px 28px; background: #e0f7f6; border-radius: 16px; margin-bottom: 32px; }
    .questions ol { padding-left: 1.5em; }
    .questions li + li { margin-top: 8px; }
    .faq-item { padding: 28px 32px; margin-bottom: 20px; background: white; border-radius: 16px; border-left: 4px solid #007a75; box-shadow: 0 4px 24px rgba(0,122,117,.07); scroll-margin-top: 24px; }
    h2 { font-size: clamp(18px, 3vw, 22px); line-height: 1.6; color: #04302d; margin-bottom: 14px; }
    .answer { font-weight: bold; color: #007a75; margin-bottom: 8px; }
    .contact { padding: 32px; margin-top: 36px; background: #04302d; color: white; border-radius: 16px; }
    .contact h2 { color: white; }
    .contact a { display: inline-block; color: #6ee7e1; margin-top: 16px; }
    .back { display: inline-block; margin-top: 32px; }
    footer { background: #021a18; color: #c5d7d5; text-align: center; padding: 24px; font-size: 13px; }
    footer a { color: #6ee7e1; }
    footer nav { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; margin-bottom: 12px; }
    @media (max-width: 600px) {
      .faq-item, .questions, .contact { padding: 22px 20px; }
      .breadcrumb { margin-bottom: 28px; }
    }
    @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }