:root{
    --navy:#04173a;
    --navy-2:#0a2a5e;
    --blue:#1763c9;
    --sky:#31a8e0;
    --cyan:#3fd0d4;
    --sand:#f4ede0;
    --ink:#0d1b2a;
    --muted:#5b6b80;
    --line:#e4e9f0;
    --white:#ffffff;
    --wash:#f6f9fc;
    --radius:18px;
    --shadow:0 18px 50px -20px rgba(6,30,72,.35);
    --font:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic",YuGothic,"Noto Sans JP",Meiryo,system-ui,sans-serif;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.85;-webkit-font-smoothing:antialiased;overflow-x:hidden}
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}
  .wrap{width:min(1140px,92vw);margin-inline:auto}
  section{position:relative;scroll-margin-top:84px}
  ::selection{background:var(--cyan);color:#04122f}
  :focus-visible{outline:3px solid var(--cyan);outline-offset:3px;border-radius:6px}
  .skip{position:absolute;left:12px;top:-64px;z-index:100;background:#fff;color:var(--navy);
        font-weight:800;padding:.8em 1.4em;border-radius:0 0 12px 12px;transition:top .25s}
  .skip:focus{top:0}
  @media(prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
    .reveal{opacity:1;transform:none}
  }

  /* ---------- buttons ---------- */
  .btn{display:inline-flex;align-items:center;gap:.5em;font-weight:700;padding:.95em 1.9em;border-radius:100px;transition:transform .25s ease,box-shadow .25s ease,background .25s;letter-spacing:.02em;font-size:.98rem;cursor:pointer;border:none}
  .btn-primary{background:linear-gradient(120deg,var(--sky),var(--cyan));color:#032137;box-shadow:0 14px 30px -12px rgba(63,208,212,.7)}
  .btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 40px -12px rgba(63,208,212,.85)}
  .btn-ghost{background:rgba(255,255,255,.09);color:#fff;border:1.5px solid rgba(255,255,255,.55);backdrop-filter:blur(4px)}
  .btn-ghost:hover{background:rgba(255,255,255,.18);transform:translateY(-3px)}
  .btn-dark{background:var(--navy);color:#fff}
  .btn-dark:hover{transform:translateY(-3px);box-shadow:var(--shadow)}

  /* ---------- header ---------- */
  header{position:fixed;top:0;left:0;right:0;z-index:60;transition:.35s}
  header .bar{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
  .logo{display:flex;align-items:center;gap:13px;color:#fff;font-weight:800;letter-spacing:.04em;transition:color .35s}
  .logo .logo-img{height:34px;width:auto;display:block}
  .logo .logo-img.blue{display:none}
  header.scrolled .logo .logo-img.white{display:none}
  header.scrolled .logo .logo-img.blue{display:block}
  .logo .fleet{font-size:.9rem;font-weight:800;line-height:1.15;display:block;padding-left:13px;border-left:1.5px solid currentColor;opacity:.92}
  .logo .fleet small{display:block;font-size:.56rem;font-weight:600;letter-spacing:.24em;opacity:.7}
  nav.main{display:flex;align-items:center;gap:30px}
  nav.main a.link{color:#fff;font-weight:600;font-size:.92rem;opacity:.9;transition:.25s;position:relative}
  nav.main a.link::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--cyan);transition:.3s}
  nav.main a.link:hover{opacity:1}
  nav.main a.link:hover::after{width:100%}
  nav.main a.link.active{opacity:1}
  nav.main a.link.active::after{width:100%}
  header.scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(14px);box-shadow:0 6px 24px -14px rgba(6,30,72,.4)}
  header.scrolled .logo,header.scrolled nav.main a.link{color:var(--ink)}
  header.scrolled .logo span{opacity:.55}
  .nav-cta{padding:.6em 1.3em;font-size:.86rem}
  .menu-btn{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
  .menu-btn span{width:26px;height:2px;background:#fff;transition:.3s;border-radius:2px}
  header.scrolled .menu-btn span{background:var(--ink)}

  /* ---------- hero ---------- */
  .hero{min-height:100vh;display:flex;align-items:center;color:#fff;position:relative;overflow:hidden;background:linear-gradient(160deg,#04122f 0%,#0a2a5e 45%,#12508f 100%)}
  .hero .sea{position:absolute;inset:0;z-index:0}
  .hero .sea img{width:100%;height:100%;object-fit:cover;object-position:72% 58%;
    /* 元写真が白っぽいので軽く締める */
    filter:saturate(1.18) contrast(1.06)}
  /* 写真の上でコピーを読ませるためのスクリム。帆の色を殺さない濃度に留める */
  .hero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
    background:
      linear-gradient(100deg,rgba(4,18,47,.86) 0%,rgba(4,18,47,.60) 34%,rgba(4,18,47,.18) 62%,rgba(4,18,47,.02) 100%),
      linear-gradient(to top,rgba(3,13,36,.72) 0%,rgba(3,13,36,0) 38%)}
  .hero-content{position:relative;z-index:3;padding-top:90px}
  .eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.8rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--cyan);margin-bottom:26px}
  .eyebrow::before{content:"";width:34px;height:2px;background:var(--cyan)}
  .hero h1{font-size:clamp(2.5rem,6.4vw,4.9rem);font-weight:900;line-height:1.12;letter-spacing:.01em;text-shadow:0 6px 40px rgba(0,0,0,.35)}
  .hero h1 .accent{background:linear-gradient(100deg,var(--cyan),#9df6d6);-webkit-background-clip:text;background-clip:text;color:transparent}
  .hero p.lead{font-size:clamp(1rem,1.7vw,1.2rem);max-width:44ch;margin:26px 0 40px;color:rgba(255,255,255,.9);line-height:1.95;
    /* 日本語の禁則・単語途中の改行を避ける */
    line-break:strict;overflow-wrap:anywhere;text-wrap:pretty}
  .hero-cta{display:flex;gap:16px;flex-wrap:wrap}
  .hero-stats{display:flex;gap:40px;margin-top:60px;flex-wrap:wrap}
  .hero-stats .st b{font-size:2rem;font-weight:900;color:#fff;display:block;line-height:1}
  .hero-stats .st span{font-size:.8rem;letter-spacing:.08em;color:rgba(255,255,255,.72)}
  .scroll-ind{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:3;color:rgba(255,255,255,.7);font-size:.7rem;letter-spacing:.3em;text-align:center}
  .scroll-ind .dot{width:22px;height:36px;border:2px solid rgba(255,255,255,.5);border-radius:14px;margin:0 auto 8px;position:relative}
  .scroll-ind .dot::after{content:"";position:absolute;top:7px;left:50%;transform:translateX(-50%);width:4px;height:8px;background:var(--cyan);border-radius:2px;animation:scrolldot 1.6s infinite}
  @keyframes scrolldot{0%{opacity:0;transform:translate(-50%,0)}40%{opacity:1}80%{opacity:0;transform:translate(-50%,12px)}}
  .sail{animation:sail 9s ease-in-out infinite}
  @keyframes sail{0%,100%{transform:translateX(0) rotate(0deg)}50%{transform:translateX(26px) rotate(-1.2deg)}}
  .wave-a{animation:wave 7s ease-in-out infinite}
  .wave-b{animation:wave 9s ease-in-out infinite reverse}
  @keyframes wave{0%,100%{transform:translateX(0)}50%{transform:translateX(-24px)}}

  /* ---------- section shell ---------- */
  .sec{padding:110px 0}
  .sec-head{max-width:720px;margin-bottom:56px}
  .kicker{display:inline-flex;align-items:center;gap:10px;font-size:.78rem;font-weight:800;letter-spacing:.2em;color:var(--blue);text-transform:uppercase;margin-bottom:16px}
  .kicker::before{content:"";width:26px;height:2px;background:var(--blue)}
  .sec-head h2{font-size:clamp(1.8rem,3.6vw,2.7rem);font-weight:900;line-height:1.25;letter-spacing:.01em}
  .sec-head h2 em{font-style:normal;color:var(--blue)}
  .sec-head p{margin-top:18px;color:var(--muted);font-size:1.02rem}
  /* JSが動いている時だけ隠す。動かなければ最初から見える状態にしておく */
  .js .reveal{opacity:0;transform:translateY(34px);transition:opacity .8s ease,transform .8s ease}
  .js .reveal.in{opacity:1;transform:none}

  /* ---------- about ---------- */
  #about{background:var(--wash)}
  .about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
  .about-copy h3{font-size:1.5rem;font-weight:800;margin-bottom:18px;line-height:1.5}
  .about-copy p{color:#3a4a5e;margin-bottom:16px}
  .about-copy .name-tip{background:#fff;border-left:4px solid var(--cyan);padding:16px 20px;border-radius:0 12px 12px 0;font-size:.95rem;color:#455;box-shadow:var(--shadow)}
  .about-visual{position:relative;aspect-ratio:4/3.4;border-radius:24px;overflow:hidden;background:linear-gradient(160deg,#0a2a5e,#12508f);box-shadow:var(--shadow)}
  .about-visual img{width:100%;height:100%;object-fit:cover}
  /* 3枚スライドショー（4秒ごとにフェード切替） */
  .about-visual .slides{position:absolute;inset:0}
  .about-visual .slides img{position:absolute;inset:0;opacity:0;transition:opacity 1s ease}
  .about-visual .slides img.on{opacity:1}
  .about-visual .dots{position:absolute;right:16px;bottom:16px;z-index:3;display:flex;gap:7px}
  .about-visual .dots i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.45);transition:.3s}
  .about-visual .dots i.on{background:#fff;width:20px;border-radius:4px}
  @media(prefers-reduced-motion:reduce){.about-visual .slides img{transition:none}}
  .about-visual .tag{position:absolute;left:20px;bottom:20px;z-index:2;background:rgba(255,255,255,.94);padding:12px 18px;border-radius:12px;font-weight:800;font-size:.9rem;color:var(--navy)}
  .about-visual .tag small{display:block;font-weight:600;color:var(--muted);font-size:.72rem;letter-spacing:.1em}

  /* ---------- features ---------- */
  .feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
  .feat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;transition:.35s}
  .feat:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:transparent}
  .feat .ic{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--sky),var(--cyan));margin-bottom:22px}
  .feat h4{font-size:1.2rem;font-weight:800;margin-bottom:10px}
  .feat p{color:var(--muted);font-size:.95rem}

  /* ---------- info strip ---------- */
  .info-band{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--navy);border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}
  .info-band .cell{padding:38px 30px;color:#fff;border-right:1px solid rgba(255,255,255,.09)}
  .info-band .cell:last-child{border-right:none}
  .info-band .cell .lb{font-size:.75rem;letter-spacing:.18em;color:var(--cyan);font-weight:700;margin-bottom:12px}
  .info-band .cell .vl{font-size:1.32rem;font-weight:800;line-height:1.4}
  .info-band .cell .vl small{display:block;font-size:.82rem;font-weight:500;color:rgba(255,255,255,.65);margin-top:6px}

  /* ---------- gallery ---------- */
  /* #about も --wash のため、隣接時に境目が消えないよう白のまま（背景リズム維持） */
  .gal{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px;gap:14px}
  .gal a{position:relative;overflow:hidden;border-radius:16px;background:#0a2a5e;box-shadow:var(--shadow);display:block}
  .gal a.big{grid-column:span 2;grid-row:span 2}
  .gal img{width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.2,.7,.3,1)}
  .gal a:hover img,.gal a:focus-visible img{transform:scale(1.07)}
  .gal .cap{position:absolute;left:0;right:0;bottom:0;padding:34px 16px 14px;color:#fff;font-size:.85rem;font-weight:700;
    background:linear-gradient(to top,rgba(3,13,36,.88),transparent);opacity:0;transform:translateY(8px);transition:.35s}
  .gal a:hover .cap,.gal a:focus-visible .cap{opacity:1;transform:none}
  .gal a.big .cap{font-size:1rem}
  .gal-note{margin-top:26px;font-size:.86rem;color:var(--muted)}

  /* video modal */
  .vmodal{position:fixed;inset:0;z-index:130;background:rgba(3,13,36,.94);display:grid;place-items:center;padding:24px;
      opacity:0;pointer-events:none;transition:opacity .3s}
  .vmodal.open{opacity:1;pointer-events:auto}
  .vframe{width:min(960px,94vw);aspect-ratio:16/9;background:#000;border-radius:12px;overflow:hidden;box-shadow:0 30px 80px -20px rgba(0,0,0,.8)}
  .vframe iframe{width:100%;height:100%;border:0;display:block}
  .vmodal .vclose{position:absolute;top:22px;right:22px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);
    color:#fff;width:52px;height:52px;border-radius:50%;cursor:pointer;font-size:1.2rem;display:grid;place-items:center;transition:.25s}
  .vmodal .vclose:hover{background:rgba(255,255,255,.26)}

  /* lightbox */
  .lb{position:fixed;inset:0;z-index:120;background:rgba(3,13,36,.94);display:grid;place-items:center;padding:24px;
      opacity:0;pointer-events:none;transition:opacity .3s}
  .lb.open{opacity:1;pointer-events:auto}
  .lb figure{max-width:min(1000px,92vw);text-align:center}
  .lb img{max-width:100%;max-height:78vh;border-radius:12px;box-shadow:0 30px 80px -20px rgba(0,0,0,.8)}
  .lb figcaption{color:#fff;font-size:.92rem;font-weight:700;margin-top:16px}
  .lb .count{display:block;font-weight:500;font-size:.78rem;color:rgba(255,255,255,.55);margin-top:6px}
  .lb button{position:absolute;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);color:#fff;
    width:52px;height:52px;border-radius:50%;cursor:pointer;font-size:1.5rem;line-height:1;display:grid;place-items:center;transition:.25s}
  .lb button:hover{background:rgba(255,255,255,.26)}
  .lb .close{top:22px;right:22px;font-size:1.2rem}
  .lb .prev{left:22px;top:50%;transform:translateY(-50%)}
  .lb .next{right:22px;top:50%;transform:translateY(-50%)}

  /* ---------- membership ---------- */
  #join{background:linear-gradient(165deg,#04122f,#0a2a5e 60%,#0d3a72);color:#fff;overflow:hidden;position:relative}
  #join .glow{position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(63,208,212,.28),transparent 70%);top:-140px;right:-120px;pointer-events:none}
  #join .sec-head h2 em{color:var(--cyan)}
  #join .sec-head p{color:rgba(255,255,255,.78)}
  .join-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:stretch}
  .price-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:22px;padding:38px 34px;backdrop-filter:blur(6px)}
  .price-card h4{font-size:1.15rem;font-weight:800;margin-bottom:6px;display:flex;align-items:center;gap:10px}
  .price-card .sub{font-size:.85rem;color:rgba(255,255,255,.6);margin-bottom:26px}
  .price-row{display:flex;justify-content:space-between;align-items:baseline;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.16)}
  .price-row .k small{line-height:1.2}
  .price-row:last-child{border-bottom:none}
  .price-row .k{font-weight:600;color:rgba(255,255,255,.85)}
  .price-row .v{font-weight:900;font-size:1.5rem}
  .price-row .v small{font-size:.8rem;font-weight:600;color:var(--cyan);margin-left:4px}
  .join-pitch{display:flex;flex-direction:column;justify-content:center}
  .join-pitch ul{list-style:none;margin:8px 0 30px}
  .join-pitch li{display:flex;gap:14px;align-items:flex-start;padding:11px 0;font-size:1rem;color:rgba(255,255,255,.92)}
  .join-pitch li svg{flex:none;margin-top:4px}
  .join-pitch .hl{color:var(--cyan);font-weight:800}
  .join-note{font-size:.82rem;color:rgba(255,255,255,.55);margin-top:20px}

  /* ---------- diary / timeline ---------- */
  .diary-list{display:grid;gap:0;border-top:1px solid var(--line)}
  .diary{display:grid;grid-template-columns:112px 150px 1fr auto;gap:24px;align-items:center;padding:22px 8px;border-bottom:1px solid var(--line);transition:.3s}
  .diary:hover{background:var(--wash);padding-inline:22px}
  .diary .thumb{width:112px;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:var(--wash);
    border:1px solid var(--line);display:grid;place-items:center;font-size:1.5rem;color:var(--muted)}
  .diary .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
  .diary:hover .thumb img{transform:scale(1.08)}
  .diary .date{font-weight:800;color:var(--blue);font-size:.95rem;letter-spacing:.03em}
  .diary .date small{display:block;color:var(--muted);font-weight:600;font-size:.72rem}
  .diary .ttl{font-weight:700;font-size:1.08rem}
  .diary .meta{font-size:.82rem;color:var(--muted);margin-top:4px}
  .diary .go{color:var(--blue);font-weight:700;font-size:.85rem;white-space:nowrap;opacity:.5;transition:.3s}
  .diary:hover .go{opacity:1;transform:translateX(4px)}
  .diary-foot{margin-top:40px;display:flex;gap:16px;flex-wrap:wrap}

  /* ---------- access ---------- */
  #access{background:var(--wash)}
  .access-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
  .access-info h3{font-size:1.5rem;font-weight:800;margin-bottom:20px}
  .access-list{list-style:none}
  .access-list li{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
  .access-list li .ic{width:44px;height:44px;flex:none;border-radius:12px;background:#fff;border:1px solid var(--line);display:grid;place-items:center}
  .access-list li b{display:block;font-size:1rem}
  .access-list li span{color:var(--muted);font-size:.9rem}
  .access-map{aspect-ratio:1/1;border-radius:22px;overflow:hidden;box-shadow:var(--shadow);position:relative;background:linear-gradient(160deg,#0a2a5e,#12508f)}
  .access-map>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
  .access-map:hover>img{transform:scale(1.05)}
  .access-map .pin{position:absolute;inset:0;display:grid;place-items:center;text-align:center;color:#fff;
    background:linear-gradient(to bottom,rgba(4,18,47,.35),rgba(4,18,47,.78))}
  .weather-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
  .weather-links a{background:#fff;border:1px solid var(--line);border-radius:100px;padding:.6em 1.3em;font-size:.85rem;font-weight:700;color:var(--navy-2);transition:.25s}
  .weather-links a:hover{border-color:var(--sky);color:var(--blue);transform:translateY(-2px)}

  /* ---------- CTA final ---------- */
  #cta{position:relative;color:#fff;text-align:center;padding:130px 0;overflow:hidden;background:var(--navy)}
  #cta .cta-bg{position:absolute;inset:0;z-index:0}
  #cta .cta-bg img{width:100%;height:100%;object-fit:cover;object-position:50% 55%;filter:saturate(1.1)}
  #cta::after{content:"";position:absolute;inset:0;z-index:1;
    background:linear-gradient(to bottom,rgba(3,13,36,.86),rgba(3,13,36,.72) 50%,rgba(3,13,36,.9))}
  #cta .wrap{position:relative;z-index:2}
  #cta h2{font-size:clamp(2rem,4.5vw,3.2rem);font-weight:900;line-height:1.3;margin-bottom:22px}
  #cta h2 .accent{color:var(--cyan)}
  #cta p{color:rgba(255,255,255,.78);max-width:44ch;margin:0 auto 40px;font-size:1.05rem}
  #cta .cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

  /* ---------- footer ---------- */
  footer{background:#030d24;color:rgba(255,255,255,.7);padding:70px 0 40px}
  .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
  .foot-brand .logo{color:#fff;margin-bottom:18px}
  .foot-brand p{font-size:.9rem;line-height:1.9;color:rgba(255,255,255,.55)}
  .foot-col h5{color:#fff;font-size:.85rem;letter-spacing:.14em;margin-bottom:18px;font-weight:800}
  .foot-col a{display:block;font-size:.9rem;padding:6px 0;color:rgba(255,255,255,.6);transition:.25s}
  .foot-col a:hover{color:var(--cyan);transform:translateX(3px)}
  .copy{padding-top:30px;font-size:.78rem;color:rgba(255,255,255,.4);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

  /* ---------- responsive ---------- */
  @media(max-width:900px){
    .about-grid,.join-grid,.access-grid{grid-template-columns:1fr;gap:36px}
    .feat-grid{grid-template-columns:1fr 1fr}
    .gal{grid-template-columns:repeat(2,1fr);grid-auto-rows:170px}
    .gal .cap{opacity:1;transform:none;font-size:.78rem;padding:26px 12px 10px} /* タップ端末では常時表示 */
    .info-band{grid-template-columns:1fr 1fr}
    .info-band .cell:nth-child(2){border-right:none}
    .info-band .cell{border-bottom:1px solid rgba(255,255,255,.09)}
    .foot-grid{grid-template-columns:1fr 1fr}
    /* --- mobile nav: 900px以下でハンバーガーに切替（タブレットでの折返し防止） --- */
    nav.main{position:fixed;inset:0 0 0 auto;width:76%;max-width:320px;background:var(--navy);flex-direction:column;justify-content:center;align-items:flex-start;padding:40px;gap:22px;transform:translateX(100%);transition:.4s;box-shadow:-20px 0 60px rgba(0,0,0,.4);visibility:hidden}
    nav.main.open{transform:none;visibility:visible}
    nav.main a.link{color:#fff!important;font-size:1.1rem}
    nav.main .nav-cta{margin-top:10px}
    .menu-btn{display:flex;z-index:70}
    header.menuopen .menu-btn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    header.menuopen .menu-btn span:nth-child(2){opacity:0}
    header.menuopen .menu-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
    header.menuopen .menu-btn span{background:#fff!important}
    .nav-scrim{position:fixed;inset:0;background:rgba(3,13,36,.55);backdrop-filter:blur(2px);opacity:0;pointer-events:none;transition:opacity .35s;z-index:55}
    header.menuopen ~ .nav-scrim{opacity:1;pointer-events:auto}
  }
  @media(max-width:640px){
    .sec{padding:80px 0}
    .feat-grid{grid-template-columns:1fr}
    .info-band{grid-template-columns:1fr}
    .info-band .cell{border-right:none}
    .gal{grid-auto-rows:130px;gap:10px}
    .lb button{width:44px;height:44px}
    .lb .prev{left:8px}.lb .next{right:8px}
    .diary{grid-template-columns:84px 1fr;gap:14px;align-items:start}
    .diary .thumb{width:84px;grid-row:span 2} /* 左に写真、右に日付＋本文を積む */
    .diary .date{grid-column:2}
    .diary .go{display:none}
    .foot-grid{grid-template-columns:1fr}
    .hero-stats{gap:26px}
    .scroll-ind{display:none} /* 実績数値と重なるため非表示 */
  }

  /* ============================================================
     ここから下層ページ用（2026-08 追加）
     ============================================================ */

  /* ---------- 下層ページの見出し帯 ---------- */
  .page-head{position:relative;color:#fff;padding:150px 0 74px;overflow:hidden;
    background:linear-gradient(160deg,#04122f 0%,#0a2a5e 48%,#12508f 100%)}
  .page-head .bg{position:absolute;inset:0;z-index:0}
  .page-head .bg img{width:100%;height:100%;object-fit:cover;opacity:.34;filter:saturate(1.1)}
  .page-head::after{content:"";position:absolute;inset:0;z-index:1;
    background:linear-gradient(180deg,rgba(4,18,47,.72),rgba(4,18,47,.42) 55%,rgba(4,18,47,.86))}
  .page-head .wrap{position:relative;z-index:2}
  .page-head h1{font-size:clamp(2rem,4.6vw,3.1rem);font-weight:800;line-height:1.25;letter-spacing:.01em;margin-bottom:16px}
  .page-head h1 em{font-style:normal;color:var(--cyan)}
  .page-head p{max-width:62ch;font-size:1.02rem;opacity:.9;line-height:1.95}

  /* ---------- パンくず ---------- */
  .crumbs{font-size:.82rem;opacity:.72;margin-bottom:18px;letter-spacing:.02em}
  .crumbs a{text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:1px}
  .crumbs a:hover{border-color:var(--cyan);color:var(--cyan)}
  .crumbs span{margin:0 .55em;opacity:.5}

  /* ---------- 不安をつぶす3カード ---------- */
  .assure{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:6px}
  .assure .card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
    padding:30px 26px;box-shadow:0 10px 34px -24px rgba(6,30,72,.5);transition:transform .3s,box-shadow .3s}
  .assure .card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
  .assure .ic{font-size:1.7rem;line-height:1;margin-bottom:14px}
  .assure h3{font-size:1.12rem;font-weight:800;margin-bottom:8px;color:var(--navy)}
  .assure p{font-size:.94rem;color:var(--muted);line-height:1.9}

  /* ---------- よくある質問 ---------- */
  .qa{border-top:1px solid var(--line)}
  .qa .item{border-bottom:1px solid var(--line)}
  .qa .q{width:100%;text-align:left;background:none;border:none;cursor:pointer;font:inherit;
    display:flex;align-items:flex-start;gap:16px;padding:26px 2px;color:var(--ink);font-weight:800;font-size:1.05rem;line-height:1.65}
  .qa .q .mark{flex:none;width:30px;height:30px;border-radius:50%;background:var(--navy);color:#fff;
    display:grid;place-items:center;font-size:.86rem;font-weight:800;margin-top:1px}
  .qa .q .arw{margin-left:auto;flex:none;width:22px;height:22px;position:relative;transition:transform .3s;margin-top:5px}
  .qa .q .arw::before,.qa .q .arw::after{content:"";position:absolute;background:var(--blue);border-radius:2px}
  .qa .q .arw::before{left:0;top:10px;width:22px;height:2px}
  .qa .q .arw::after{left:10px;top:0;width:2px;height:22px;transition:opacity .3s}
  .qa .item.open .q .arw{transform:rotate(180deg)}
  .qa .item.open .q .arw::after{opacity:0}
  .qa .a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s ease}
  .qa .item.open .a{grid-template-rows:1fr}
  .qa .a>div{overflow:hidden}
  .qa .a .inner{padding:0 0 28px 46px;color:var(--muted);line-height:2.02;font-size:.98rem}
  .qa .a .inner p+p{margin-top:1em}
  .qa .a .inner b{color:var(--ink)}
  .qa .a .inner ul{margin:.9em 0 0;padding-left:1.2em}
  .qa .a .inner li{margin-bottom:.4em}
  .qa .a .inner a{color:var(--blue);font-weight:700;text-decoration:underline;text-underline-offset:3px}

  /* ---------- 手順（見学→体験→入会 など） ---------- */
  .steps{display:grid;gap:18px;counter-reset:st}
  .steps .st{position:relative;background:var(--wash);border:1px solid var(--line);border-radius:var(--radius);
    padding:28px 30px 28px 92px;counter-increment:st}
  .steps .st::before{content:counter(st);position:absolute;left:28px;top:26px;width:42px;height:42px;border-radius:50%;
    background:linear-gradient(120deg,var(--sky),var(--cyan));color:#032137;display:grid;place-items:center;
    font-weight:800;font-size:1.15rem}
  .steps .st h3{font-size:1.14rem;font-weight:800;color:var(--navy);margin-bottom:7px}
  .steps .st p{color:var(--muted);font-size:.96rem;line-height:1.95}

  /* ---------- 艇の部位解説 ---------- */
  .parts{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
  .parts .p{background:var(--white);border:1px solid var(--line);border-left:4px solid var(--sky);
    border-radius:0 14px 14px 0;padding:24px 26px}
  .parts .p h4{font-size:1.04rem;font-weight:800;color:var(--navy);margin-bottom:7px;display:flex;align-items:baseline;gap:9px}
  .parts .p h4 small{font-size:.7rem;font-weight:700;letter-spacing:.14em;color:var(--sky)}
  .parts .p p{color:var(--muted);font-size:.94rem;line-height:1.92}

  /* ---------- 補足の囲み ---------- */
  .callout{background:linear-gradient(120deg,rgba(49,168,224,.1),rgba(63,208,212,.1));
    border:1px solid rgba(49,168,224,.3);border-radius:var(--radius);padding:26px 30px;line-height:1.95}
  .callout b{color:var(--navy)}
  .callout.warn{background:rgba(244,237,224,.7);border-color:#e3d6bd}

  /* ---------- 定義リスト（会費・スペック） ---------- */
  .spec{width:100%;border-collapse:collapse;font-size:.97rem}
  .spec th,.spec td{padding:17px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
  .spec th{width:36%;font-weight:800;color:var(--navy);background:var(--wash)}
  .spec td{color:var(--muted);line-height:1.9}
  .spec td b{color:var(--ink)}

  /* ---------- 次に読むページ ---------- */
  .next-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
  .next-nav a{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px 26px 24px;
    transition:transform .3s,box-shadow .3s,border-color .3s;display:block}
  .next-nav a:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--sky)}
  .next-nav .k{font-size:.7rem;font-weight:800;letter-spacing:.18em;color:var(--sky);display:block;margin-bottom:9px}
  .next-nav h4{font-size:1.08rem;font-weight:800;color:var(--navy);margin-bottom:6px}
  .next-nav p{font-size:.9rem;color:var(--muted);line-height:1.85}
  .next-nav .go{margin-top:12px;font-size:.86rem;font-weight:800;color:var(--blue)}

  /* ---------- 2カラム（本文＋写真） ---------- */
  .two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
  .two-col.rev{grid-template-columns:.95fr 1.05fr}
  .two-col .ph{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
  .two-col .ph img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
  .two-col .tx h3{font-size:clamp(1.3rem,2.4vw,1.75rem);font-weight:800;color:var(--navy);margin-bottom:14px;line-height:1.5}
  .two-col .tx p{color:var(--muted);line-height:2.05;margin-bottom:1.05em}
  .two-col .tx p b{color:var(--ink)}

  /* ---------- 小見出しのタグ ---------- */
  .pill{display:inline-block;background:rgba(23,99,201,.09);color:var(--blue);border-radius:100px;
    padding:.42em 1.05em;font-size:.78rem;font-weight:800;letter-spacing:.06em;margin-bottom:14px}

  /* ---------- 商標の帰属表示 ---------- */
  .tm-note{font-size:.74rem;opacity:.55;line-height:1.8;margin-top:14px;max-width:70ch}

  @media(max-width:900px){
    .page-head{padding:120px 0 56px}
    .assure,.next-nav{grid-template-columns:1fr}
    .parts{grid-template-columns:1fr}
    .two-col,.two-col.rev{grid-template-columns:1fr;gap:32px}
    .two-col.rev .ph{order:-1}
    .steps .st{padding:26px 24px 26px 24px}
    .steps .st::before{position:static;margin-bottom:14px}
    .qa .a .inner{padding-left:0}
    .spec th{width:38%;padding:15px 13px}
    .spec td{padding:15px 13px}
  }