:root{
    --teal-deep:#0a3434;--teal:#11514f;--teal-soft:#1d6663;
    --gold:#c2a04c;--gold-light:#e4cd8b;--gold-deep:#9c7c2e;
    --paper:#f6f2e9;--paper-2:#efe9dc;--ink:#1c2826;--muted:#4f5f5b;
    --line:rgba(10,52,52,.14);
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{font-family:"Zen Kaku Gothic New",sans-serif;background:var(--paper);color:var(--ink);line-height:1.95;font-size:16px;-webkit-font-smoothing:antialiased}
  h1,h2,h3,.mincho{font-family:"Shippori Mincho B1",serif}
  a{color:var(--teal);text-decoration:none;border-bottom:1px solid rgba(17,81,79,.3);transition:.25s}
  a:hover{color:var(--gold-deep);border-color:var(--gold)}
  .wrap{max-width:840px;margin:0 auto;padding:0 26px}

  .topbar{background:var(--teal-deep);color:var(--paper);padding:13px 0;position:sticky;top:0;z-index:50}
  .topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;max-width:1080px}
  .topbar .org{display:flex;align-items:center;gap:11px;font-size:.88rem;letter-spacing:.06em;color:var(--paper);border:none}
  .topbar .org:hover{color:var(--gold-light)}
  .topbar .mk{width:30px;height:30px;flex:0 0 30px}
  .topbar .back{color:var(--gold-light);font-size:.82rem;border:none;white-space:nowrap}

  .pagehead{background:radial-gradient(120% 100% at 85% 0%,rgba(194,160,76,.18),transparent 55%),linear-gradient(135deg,var(--teal-deep),#082a2a);color:var(--paper);padding:70px 0 58px;text-align:center;position:relative;overflow:hidden}
  .pagehead::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(228,205,139,.08) 1px,transparent 1px);background-size:24px 24px;opacity:.5}
  .pagehead .wrap{position:relative}
  .pagehead .en{font-family:"Cormorant Garamond",serif;font-style:italic;color:var(--gold-light);letter-spacing:.18em;font-size:1.05rem;display:block;margin-bottom:12px}
  .pagehead h1{font-size:clamp(1.7rem,4.5vw,2.5rem);font-weight:700;letter-spacing:.1em}

  main{padding:64px 0 30px}
  .intro{color:var(--muted);margin-bottom:46px;font-size:1rem}
  .article{margin-bottom:42px}
  .article h2{font-size:1.18rem;color:var(--teal-deep);font-weight:700;letter-spacing:.04em;padding-bottom:12px;margin-bottom:18px;border-bottom:2px solid var(--line);position:relative}
  .article h2::after{content:"";position:absolute;left:0;bottom:-2px;width:54px;height:2px;background:var(--gold)}
  .article h2 .no{font-family:"Cormorant Garamond",serif;font-style:italic;color:var(--gold-deep);margin-right:12px;font-size:1.05rem}
  .article p{color:var(--ink);margin-bottom:14px}
  .article p.note{color:var(--muted);font-size:.92rem}
  ol.lst,ul.lst{margin:6px 0 14px;padding-left:1.4em}
  ol.lst li,ul.lst li{margin-bottom:9px;color:var(--ink)}
  ul.lst{list-style:none;padding-left:0}
  ul.lst li{position:relative;padding-left:24px}
  ul.lst li::before{content:"◇";position:absolute;left:0;color:var(--gold-deep);font-size:.8rem;top:2px}

  .contactbox{background:var(--teal-deep);color:var(--paper);border-radius:5px;padding:34px 38px;margin:50px 0 10px;position:relative;overflow:hidden}
  .contactbox::after{content:"";position:absolute;top:-40px;right:-40px;width:150px;height:150px;border:1px solid rgba(228,205,139,.2);border-radius:50%}
  .contactbox h3{font-size:1.12rem;color:var(--gold-light);margin-bottom:16px;letter-spacing:.06em;position:relative}
  .contactbox p{position:relative;color:rgba(246,242,233,.85);font-size:.95rem;margin-bottom:6px}
  .contactbox p b{color:var(--paper)}
  .contactbox a{color:var(--gold-light);border-color:rgba(228,205,139,.4)}

  .dates{margin-top:40px;padding-top:24px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;text-align:right}

  footer{background:#061f1f;color:rgba(246,242,233,.55);padding:40px 0;font-size:.82rem;text-align:center;line-height:1.9;margin-top:50px}
  footer a{color:var(--gold-light);border:none}

  @media(max-width:640px){
    body{font-size:15px}
    .contactbox{padding:26px 22px}
    main{padding:46px 0 20px}
  }

  /* === サンクス / 404 等のシンプルページ用 === */
  .simple{padding:64px 0 30px;text-align:center}
  .simple .lead{color:var(--ink);font-size:1.05rem;margin-bottom:14px}
  .simple .note{color:var(--muted);font-size:.95rem;margin-bottom:8px}
  .backwrap{text-align:center;margin:44px 0 10px}
  .backbtn{display:inline-flex;align-items:center;gap:10px;padding:15px 38px;font-weight:700;border-radius:3px;background:linear-gradient(135deg,var(--gold-light),var(--gold));color:var(--teal-deep);border:1px solid var(--gold);letter-spacing:.04em;transition:.3s}
  .backbtn:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(194,160,76,.4);color:var(--teal-deep);border-color:var(--gold)}