@charset "UTF-8";

/* 横揺れ防止 */
html, body {
  overflow-x: hidden;
  width: 100%;
}
  :root{
    --teal:#00E1DA; --teal-deep:#1C8FA0; --teal-text:#189E86; --teal-text-hover:#084F49;
    --teal-bg:#EAF8F6; --card-border:#D8EEEC;
    --ink:#17242A; --ink-soft:#22383D; --ink-mute:#4C5C60; --ink-faint:#7C8C8F; --ink-faintest:#AEB8B9;
    --red:#E23B2E; --red-hover:#C42B1F; --blue:#1E5FA8; --blue-bg:#EAF1FB;
  }
  *{box-sizing:border-box}
  body{margin:0;background:#fff;color:var(--ink);font-family:'Noto Sans JP',sans-serif;-webkit-font-smoothing:antialiased}
  a{color:var(--teal-text);text-decoration:none}
  a:hover{color:var(--teal-text-hover)}
  img{max-width:100%}

  .site-header{position:sticky;top:0;z-index:50;background:#fff;display:flex;align-items:center;justify-content:space-between;gap:28px;padding:20px 48px;border-bottom:1px solid rgba(23,36,42,0.08);flex-wrap:wrap}
  .logo-block{display:flex;flex-direction:column;align-items:flex-start;gap:4px;flex-shrink:0}
  .logo-block img{height:34px;width:auto;display:block}
  .logo-sub{font-size:10px;font-weight:400;letter-spacing:0.06em;color:var(--blue)}
  .header-right{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
  .nav-links{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
  .nav-link{font-size:12.5px;color:var(--teal-text);letter-spacing:0.02em;transition:color .15s ease}
  .nav-link:hover{color:var(--teal-text-hover);text-decoration:underline}
  .badge-link{font-size:11.5px;color:var(--blue);background:var(--blue-bg);padding:6px 14px;border-radius:999px;letter-spacing:0.02em;white-space:nowrap;transition:background .15s ease}
  .badge-link:hover{background:#DCE9FA}
  .cta-outline{font-size:12.5px;padding:9px 20px;border:1px solid var(--teal);border-radius:999px;color:var(--teal-text);white-space:nowrap;transition:background .15s ease,color .15s ease}
  .cta-outline:hover{background:var(--teal);color:#fff}
  .hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;width:34px;height:34px;padding:0;border:none;background:transparent;cursor:pointer}
  .hamburger span{display:block;width:100%;height:2px;background:var(--ink);border-radius:2px}
  .mobile-panel{display:none;flex-direction:column;gap:2px;width:100%;border-top:1px solid rgba(23,36,42,0.08);margin-top:12px;padding-top:8px}
  .mobile-panel a{font-size:14px;color:var(--teal-text);padding:10px 4px;border-bottom:1px solid rgba(23,36,42,0.06)}
  .mobile-panel.open{display:flex}

  .hero-banner{position:relative;padding:76px 56px;background:linear-gradient(135deg,var(--teal),var(--teal-deep));overflow:hidden}
  .banner-circle{position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,0.24);pointer-events:none}
  .circle-tl{top:-8%;left:-6%;width:34%;aspect-ratio:1;border-color:rgba(255,255,255,0.28)}
  .circle-br{bottom:-18%;right:-4%;width:42%;aspect-ratio:1;border-color:rgba(255,255,255,0.2)}
  .hero-inner{position:relative;z-index:1;max-width:760px;margin:0 auto;text-align:center}
  .hero-eyebrow{font-size:11px;letter-spacing:0.25em;color:#E5FBF9;margin-bottom:14px}
  .hero-title{margin:0;font-family:'Zen Old Mincho',serif;font-weight:700;font-size:30px;letter-spacing:0.06em;line-height:1.6;color:#fff;text-shadow:0 1px 6px rgba(8,40,42,0.25)}

  .breadcrumb{padding:16px 56px;border-bottom:1px solid rgba(23,36,42,0.06);font-size:12px;color:var(--ink-faint);display:flex;align-items:center;gap:8px;flex-wrap:wrap}

  .article{padding:72px 56px;max-width:680px;margin:0 auto}
  .article p{margin:0 0 24px;font-size:15px;line-height:2.1;color:var(--ink-soft);word-break:keep-all;overflow-wrap:break-word;text-wrap:pretty}
  .article h2{margin:44px 0 20px;font-family:'Shippori Mincho',serif;font-weight:600;font-size:23px;line-height:1.6;color:var(--ink)}
  .article h2:first-of-type{margin-top:0}
  .article h3{margin:0 0 16px;font-family:'Shippori Mincho',serif;font-weight:600;font-size:17px;line-height:1.6;color:var(--teal-text-hover)}
  .insight-card{background:var(--teal-bg);padding:36px;border-radius:4px;margin-bottom:44px}
  .insight-card p{font-size:15px;line-height:2;color:var(--ink-soft);word-break:keep-all;overflow-wrap:break-word;text-wrap:pretty;margin-bottom:0}
  .summary-card{background:var(--teal-bg);padding:40px;border-radius:4px;margin-bottom:44px}
  .summary-card p{font-size:15px;line-height:2;word-break:keep-all;overflow-wrap:break-word;text-wrap:pretty;margin-bottom:0}

  .book-card{display:flex;align-items:center;gap:20px;padding:22px;background:#fff;border:1px solid var(--card-border);border-radius:4px;margin-bottom:16px;transition:border-color .15s ease,transform .15s ease}
  .book-card:hover{border-color:var(--teal);transform:translateY(-2px)}
  .book-card img{width:78px;height:auto;flex-shrink:0}
  .book-card-title{font-family:'Shippori Mincho',serif;font-size:15px;color:var(--ink);margin-bottom:6px}
  .book-card-cta{font-size:12.5px;color:var(--teal-text)}

  .related-section{padding:0 56px 80px}
  .related-section h2{margin:0 0 24px;text-align:center;font-family:'Shippori Mincho',serif;font-weight:600;font-size:22px;color:var(--ink)}
  .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:960px;margin:0 auto}
  .related-card{display:block;background:#fff;border:1px solid var(--card-border);border-radius:4px;padding:22px;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
  .related-card:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(23,36,42,0.1);border-color:var(--teal)}
  .related-card-title{font-family:'Shippori Mincho',serif;font-size:15.5px;color:var(--ink);margin-bottom:8px}
  .related-card-cta{font-size:12px;color:var(--teal-text)}

  .cta-banner{padding:64px 56px;background:linear-gradient(135deg,var(--teal),var(--teal-deep));text-align:center}
  .cta-banner h2{margin:0 0 12px;font-family:'Shippori Mincho',serif;font-weight:600;font-size:24px;color:#fff;text-shadow:0 1px 6px rgba(8,40,42,0.25)}
  .cta-banner p{margin:0 0 28px;font-size:13.5px;color:rgba(255,255,255,0.95);text-shadow:0 1px 6px rgba(8,40,42,0.3)}
  .cta-button{display:inline-block;font-size:14px;padding:15px 38px;background:var(--red);color:#fff;border-radius:999px;letter-spacing:0.03em;transition:background .15s ease,transform .15s ease}
  .cta-button:hover{background:var(--red-hover);color:#fff;transform:translateY(-2px)}
  .cta-buttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
  .cta-button-outline{display:inline-block;font-size:14px;padding:13.5px 32px;border:1.5px solid #fff;color:#fff;border-radius:999px;letter-spacing:0.03em;transition:background .15s ease,color .15s ease}
  .cta-button-outline:hover{background:#fff;color:var(--ink)}

  .site-footer{padding:48px 56px;display:grid;grid-template-columns:1.1fr 1fr;gap:40px}
  .site-footer img{height:44px;width:auto;display:block;margin-bottom:14px}
  .footer-org{font-family:'Shippori Mincho',serif;font-size:16px;color:var(--ink);margin-bottom:10px}
  .site-footer p{margin:0 0 6px;font-size:12.5px;color:var(--ink-faint);line-height:1.8}
  .copyright{font-size:12px;color:var(--ink-faintest)}
  .footer-map{border-radius:4px;overflow:hidden;min-height:220px}
  .footer-map iframe{width:100%;height:100%;min-height:220px;border:0;display:block}

  @media (max-width:979px){
    .related-grid{grid-template-columns:1fr 1fr}
  }
  @media (max-width:719px){
    .site-header{padding:14px 20px;gap:14px}
    .nav-links{display:none}
    .hamburger{display:flex}
    .hero-banner{padding:56px 20px}
    .hero-title{font-size:22px}
    .breadcrumb{padding:14px 20px}
    .article{padding:48px 20px}
    .related-section{padding:0 20px 48px}
    .related-grid{grid-template-columns:1fr}
    .cta-banner{padding:48px 20px}
    .cta-banner h2 span {
      display: inline-block;
    }
    .site-footer{padding:40px 20px;grid-template-columns:1fr}
    .footer-map{min-height:260px}
    .footer-map iframe{min-height:260px}
    .book-card{flex-direction:column;align-items:flex-start}
  }