:root{
    --paper:#f3efe4;      /* washi / unbleached paper */
    --paper-2:#eae4d4;
    --ink:#1f2d33;        /* deep ink for text */
    --sky:#1d4e6b;        /* koinobori sky blue */
    --sky-deep:#13384f;
    --lemon:#e0a92e;      /* nichinan lemon */
    --lemon-soft:#f2d68a;
    --leaf:#3a6b3f;       /* citrus leaf green */
    --muted:#6b6f6a;
    --line:rgba(31,45,51,.14);
    --display:'Fraunces',Georgia,serif;
    --body:'Inter',system-ui,sans-serif;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:var(--body);
    color:var(--ink);
    background:var(--paper);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit}

  /* ---------- top language / nav bar ---------- */
  .topbar{
    position:sticky;top:0;z-index:50;
    display:flex;align-items:center;justify-content:space-between;
    padding:.85rem clamp(1.2rem,4vw,3rem);
    background:rgba(243,239,228,.86);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
  }
  .brand{font-family:var(--display);font-weight:600;font-size:1.05rem;letter-spacing:.01em}
  .brand span{color:var(--sky)}
  .lang{display:flex;gap:.15rem;font-size:.82rem;font-weight:500}
  .lang a{
    padding:.3rem .7rem;border-radius:999px;text-decoration:none;
    color:var(--muted);transition:.2s;
  }
  .lang a.active{background:var(--sky);color:#fff}
  .lang a:not(.active):hover{background:var(--paper-2)}

  /* ---------- hero ---------- */
  .hero{position:relative;min-height:88vh;display:flex;align-items:flex-end;overflow:hidden}
  .hero img{
    position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
    z-index:0;
  }
  .hero::after{
    content:"";position:absolute;inset:0;z-index:1;
    background:linear-gradient(180deg,rgba(19,56,79,.15) 0%,rgba(19,56,79,.20) 45%,rgba(19,56,79,.72) 100%);
  }
  .hero-inner{
    position:relative;z-index:2;color:#fff;
    padding:clamp(2rem,6vw,5rem) clamp(1.2rem,4vw,3rem);
    max-width:60rem;
  }
  .eyebrow{
    font-size:.8rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
    color:var(--lemon-soft);margin-bottom:1.1rem;
  }
  .hero h1{
    font-family:var(--display);font-weight:500;
    font-size:clamp(2.2rem,6vw,4.4rem);line-height:1.08;
    letter-spacing:-.01em;margin-bottom:1.2rem;text-wrap:balance;
  }
  .hero h1 em{font-style:italic;color:var(--lemon-soft)}
  .hero p{
    font-size:clamp(1.02rem,2vw,1.25rem);max-width:38rem;
    color:rgba(255,255,255,.92);
  }
  .hero-meta{
    margin-top:1.6rem;display:flex;flex-wrap:wrap;gap:.5rem .9rem;
    font-size:.86rem;color:rgba(255,255,255,.82);
  }
  .hero-meta span{display:inline-flex;align-items:center;gap:.4rem}
  .hero-meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--lemon)}

  /* ---------- intro ---------- */
  .intro{
    padding:clamp(3.5rem,8vw,6rem) clamp(1.2rem,4vw,3rem);
    max-width:54rem;margin:0 auto;text-align:center;
  }
  .intro .lead{
    font-family:var(--display);font-weight:400;
    font-size:clamp(1.3rem,3vw,1.9rem);line-height:1.45;
    letter-spacing:-.01em;text-wrap:balance;
  }
  .intro .sub{margin-top:1.4rem;color:var(--muted);font-size:1.02rem}
  .where{
    margin-top:1.8rem;display:inline-flex;align-items:center;gap:.55rem;
    font-size:.9rem;font-weight:500;color:var(--sky);
    padding:.5rem 1rem;border:1px solid var(--line);border-radius:999px;
  }

  /* ---------- cards (2×2 grid) ---------- */
  .cards{
    display:grid;grid-template-columns:repeat(2,1fr);gap:2rem;
    background:var(--paper);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    padding:2rem clamp(1.2rem,4vw,3rem);
  }
  .card{
    position:relative;background:var(--paper);
    display:flex;flex-direction:column;min-height:420px;
    text-decoration:none;color:inherit;overflow:hidden;
  }
  .card-img{position:relative;height:230px;overflow:hidden}
  .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
  .card:hover .card-img img{transform:scale(1.05)}
  .card-num{
    position:absolute;top:.8rem;left:.9rem;z-index:2;
    font-family:var(--display);font-size:.8rem;font-weight:600;
    color:#fff;background:rgba(19,56,79,.6);
    width:1.9rem;height:1.9rem;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    backdrop-filter:blur(2px);
  }
  .card-body{padding:1.5rem 1.4rem 1.6rem;flex:1;display:flex;flex-direction:column}
  .card-kicker{font-size:.74rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--leaf);margin-bottom:.5rem}
  .card h3{font-family:var(--display);font-weight:500;font-size:1.45rem;margin-bottom:.55rem;line-height:1.15}
  .card p{font-size:.95rem;color:var(--muted);flex:1}
  .card-go{margin-top:1rem;font-size:.86rem;font-weight:600;color:var(--sky);display:inline-flex;align-items:center;gap:.4rem;transition:gap .2s}
  .card:hover .card-go{gap:.7rem}

  .card.lemon .card-kicker{color:var(--lemon)}
  .card.fire .card-img{background:var(--sky-deep);display:flex;align-items:center;justify-content:center}
  .card.fire .soon{
    color:var(--lemon-soft);font-family:var(--display);font-style:italic;
    font-size:1.15rem;text-align:center;padding:1rem;line-height:1.4;
  }
  .card.fire .soon small{display:block;font-family:var(--body);font-style:normal;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(242,214,138,.7);margin-top:.6rem}

  /* ---------- story strip ---------- */
  .story{
    background:var(--sky-deep);color:var(--paper);
    padding:clamp(3.5rem,8vw,6rem) clamp(1.2rem,4vw,3rem);
  }
  .story-inner{max-width:50rem;margin:0 auto;text-align:center}
  .story .eyebrow{color:var(--lemon-soft)}
  .story h2{
    font-family:var(--display);font-weight:500;
    font-size:clamp(1.8rem,4.5vw,2.8rem);line-height:1.2;
    margin-bottom:1.3rem;text-wrap:balance;
  }
  .story p{color:rgba(243,239,228,.85);font-size:1.05rem;max-width:40rem;margin:0 auto}
  .stats{
    margin-top:2.6rem;display:flex;flex-wrap:wrap;justify-content:center;gap:2.4rem;
  }
  .stat{display:flex;flex-direction:column;align-items:center}
  .stat b{font-family:var(--display);font-weight:600;font-size:2.3rem;color:var(--lemon-soft);line-height:1}
  .stat span{margin-top:.4rem;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(243,239,228,.6)}

  /* ---------- contact ---------- */
  .contact{
    padding:clamp(3.5rem,8vw,6rem) clamp(1.2rem,4vw,3rem);
    max-width:48rem;margin:0 auto;text-align:center;
  }
  .contact .eyebrow{color:var(--leaf)}
  .contact h2{font-family:var(--display);font-weight:500;font-size:clamp(1.8rem,4.5vw,2.6rem);margin-bottom:1rem;line-height:1.15;text-wrap:balance}
  .contact p{color:var(--muted);margin-bottom:2rem;font-size:1.05rem}
  .contact-actions{display:flex;flex-wrap:wrap;gap:.9rem;justify-content:center}
  .btn{
    display:inline-flex;align-items:center;gap:.5rem;
    padding:.85rem 1.6rem;border-radius:999px;
    font-weight:600;font-size:.95rem;text-decoration:none;transition:.2s;
  }
  .btn-primary{background:var(--sky);color:#fff}
  .btn-primary:hover{background:var(--sky-deep)}
  .btn-ghost{border:1px solid var(--line);color:var(--ink)}
  .btn-ghost:hover{background:var(--paper-2)}

  /* ---------- footer ---------- */
  footer{
    border-top:1px solid var(--line);
    padding:2.2rem clamp(1.2rem,4vw,3rem);
    display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;align-items:center;
    font-size:.85rem;color:var(--muted);
  }
  footer .back-ja{color:var(--sky);font-weight:500;text-decoration:none}
  footer .back-ja:hover{text-decoration:underline}

  /* ---------- responsive ---------- */
  @media(max-width:820px){
    .card{min-height:auto}
    .card-img{height:210px}
  }
  @media(max-width:768px){
    .cards{grid-template-columns:1fr;gap:1.2rem;padding:1.2rem}
  }
  @media(prefers-reduced-motion:reduce){
    *{transition:none!important;scroll-behavior:auto!important}
    .card:hover .card-img img{transform:none}
  }

/* ===== sub-page shared styles ===== */
.page-hero{position:relative;min-height:52vh;display:flex;align-items:flex-end;overflow:hidden}
.page-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.page-hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(19,56,79,.15),rgba(19,56,79,.68))}
.page-hero .hero-inner{max-width:54rem}
.page-hero h1{font-family:var(--display);font-weight:500;color:#fff;font-size:clamp(2rem,5.5vw,3.6rem);line-height:1.1;letter-spacing:-.01em;text-wrap:balance}
.page-hero p{color:rgba(255,255,255,.9);margin-top:.9rem;font-size:clamp(1rem,2vw,1.18rem);max-width:36rem}

.prose{max-width:46rem;margin:0 auto;padding:clamp(3rem,7vw,5rem) clamp(1.2rem,4vw,3rem)}
.prose .eyebrow{color:var(--leaf);margin-bottom:.8rem}
.prose h2{font-family:var(--display);font-weight:500;font-size:clamp(1.6rem,4vw,2.4rem);line-height:1.2;margin:2.4rem 0 1rem;text-wrap:balance}
.prose h2:first-of-type{margin-top:0}
.prose p{margin-bottom:1.1rem;font-size:1.06rem;color:var(--ink)}
.prose p.lead{font-family:var(--display);font-size:clamp(1.2rem,2.6vw,1.55rem);line-height:1.45;color:var(--ink)}
.prose em{font-style:italic}
.prose figure{margin:2rem 0}
.prose figure img{border-radius:6px;width:100%}
.prose figcaption{margin-top:.6rem;font-size:.85rem;color:var(--muted);text-align:center}
.callout{background:var(--paper-2);border-left:3px solid var(--lemon);padding:1.2rem 1.4rem;border-radius:0 6px 6px 0;margin:2rem 0;font-size:1.02rem}
.factbar{display:flex;flex-wrap:wrap;gap:1.6rem;padding:1.6rem 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:2rem 0}
.factbar div{display:flex;flex-direction:column}
.factbar b{font-family:var(--display);font-weight:600;font-size:1.3rem;color:var(--sky)}
.factbar span{font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:.2rem}
.page-cta{text-align:center;padding:0 clamp(1.2rem,4vw,3rem) clamp(3.5rem,8vw,5rem)}
.page-cta a{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 1.6rem;border-radius:999px;background:var(--sky);color:#fff;font-weight:600;text-decoration:none;font-size:.95rem;transition:.2s}
.page-cta a:hover{background:var(--sky-deep)}
.subnav{display:flex;flex-wrap:wrap;gap:.3rem;justify-content:center;padding:1.6rem 1rem;border-bottom:1px solid var(--line);background:var(--paper)}
.subnav a{font-size:.85rem;font-weight:500;color:var(--muted);text-decoration:none;padding:.4rem .9rem;border-radius:999px;transition:.2s}
.subnav a:hover{background:var(--paper-2);color:var(--ink)}
.subnav a.here{background:var(--sky);color:#fff}

/* ===== Floating Action Button ===== */
.floating-nav{position:fixed;bottom:1.5rem;right:1.5rem;z-index:40;display:flex;flex-direction:column;gap:.5rem;opacity:0;transform:translateY(20px);transition:opacity .3s,transform .3s;pointer-events:none}
.floating-nav.visible{opacity:1;transform:translateY(0);pointer-events:auto}
.floating-nav button,.floating-nav a.fn-home{width:3rem;height:3rem;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(0,0,0,.15);transition:transform .2s,box-shadow .2s;cursor:pointer;border:none;text-decoration:none}
.floating-nav button:hover,.floating-nav a.fn-home:hover{transform:scale(1.1);box-shadow:0 6px 16px rgba(0,0,0,.2)}
.floating-nav .fn-prev,.floating-nav .fn-next{background:var(--leaf);color:#fff}
.floating-nav .fn-top{background:#fff;color:var(--leaf);border:2px solid #bbf7d0}
.floating-nav .fn-home{background:#fff;color:#ea580c;border:2px solid #fed7aa}