:root{
    --ink:#2b2b2b; --muted:#6b7280; --line:#e8e8ec; --bg:#ffffff;
    --pink:#d24c92; --pink-d:#b23a79; --pink-bg:#fdeef6; --pink-ll:#fff7fb;
    --navy:#1a2a4f; --navy2:#243766; --navy3:#0e1a37;
    --gold:#c4a24e; --gold-d:#a8893d; --gold-l:#e8d59a;
    --maxw:880px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic Medium","Yu Gothic","Meiryo",sans-serif;color:var(--ink);background:var(--bg);line-height:1.95;font-size:18px;-webkit-font-smoothing:antialiased}
  a{color:inherit;text-decoration:none}
  .wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
  b{font-weight:800}

  /* ヘッダー（紺ベース） */
  header{position:sticky;top:0;z-index:50;background:rgba(26,42,79,.94);backdrop-filter:blur(8px);border-bottom:1px solid rgba(196,162,78,.3)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:1080px;margin:0 auto;padding:0 24px}
  .mark{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:#fff}
  .mark .dot{width:38px;height:38px;flex:none;object-fit:contain;display:block}
  .mark .nm{font-size:17px;color:#fff}
  .back{font-size:15.5px;font-weight:700;color:var(--gold-l);transition:.2s}
  .back:hover{color:var(--gold)}

  /* ヒーロー（紺×ゴールド） */
  .hero{padding:100px 0 80px;background:linear-gradient(135deg,var(--navy3) 0%,var(--navy) 70%,var(--navy2) 100%);color:#fff;position:relative;overflow:hidden;text-align:center}
  .hero::before{content:"";position:absolute;left:-100px;top:-80px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(196,162,78,.16),transparent 70%);pointer-events:none}
  .hero::after{content:"";position:absolute;right:-120px;bottom:-100px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(196,162,78,.10),transparent 70%);pointer-events:none}
  .hero .wrap{position:relative;z-index:1}
  .hero .eyebrow{display:inline-block;border:1px solid var(--gold);color:#fff;font-weight:700;font-size:14.5px;padding:6px 16px;margin-bottom:24px;letter-spacing:.06em}
  .hero h1{font-size:clamp(50px,9vw,96px);font-weight:900;line-height:.95;margin-bottom:14px}
  .hero h1 .g{color:var(--gold)}
  .hero .en{color:#9fb0d0;font-weight:700;letter-spacing:.08em;font-family:Georgia,"Times New Roman",serif;font-size:22px;margin-bottom:24px}
  .hero .concept{display:inline-block;background:var(--gold);color:var(--navy);font-weight:800;padding:12px 26px;font-size:17px;margin-bottom:24px}
  .hero p.lead{font-size:17px;color:#cdd6e8;max-width:640px;margin:0 auto;line-height:1.95}

  section.block{padding:80px 0}
  .tint{background:#f7f7fa}
  .navy-bg{background:var(--navy);color:#fff}
  .navy-bg .sec-head h2{color:#fff}
  .navy-bg .sec-head .kicker{color:var(--gold)}
  .sec-head{margin-bottom:38px}
  .sec-head .kicker{color:var(--gold-d);font-weight:800;letter-spacing:.14em;font-size:12px;margin-bottom:10px}
  .sec-head h2{font-size:clamp(22px,3vw,30px);font-weight:900;line-height:1.4}

  .intro p{font-size:17px;line-height:2;margin-bottom:20px}
  .intro p b{color:var(--navy)}

  /* 学べること */
  .programs{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
  .program{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 24px;transition:.2s}
  .program:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(26,42,79,.10);border-color:var(--gold)}
  .program .no{font-size:11px;font-weight:800;color:var(--gold-d);letter-spacing:.14em;margin-bottom:8px}
  .program h3{font-size:18px;font-weight:900;margin-bottom:10px;line-height:1.45}
  .program p{font-size:14.5px;color:var(--muted);line-height:1.85}

  /* 塾の様子（フォトギャラリー：3枚・等サイズ） */
  .gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  .g-item{margin:0}
  .g-item img{width:100%;aspect-ratio:3/2;object-fit:cover;display:block;border-radius:10px;
    box-shadow:0 10px 26px rgba(210,76,146,.12)}
  .g-item figcaption{margin-top:12px;font-size:14.5px;font-weight:700;color:var(--pink-d);line-height:1.6}
  @media(max-width:760px){
    .gallery{grid-template-columns:1fr;gap:24px;max-width:460px;margin:0 auto}
  }

  /* どんな人のための塾か */
  .target{background:#fff;border-radius:16px;padding:30px 32px;border:1px solid var(--gold);box-shadow:0 10px 30px rgba(196,162,78,.10)}
  .target h3{font-size:18px;font-weight:900;margin-bottom:18px;color:var(--navy)}
  .target ul{list-style:none;display:grid;gap:14px}
  .target li{padding-left:34px;position:relative;font-size:15.5px;line-height:1.85}
  .target li::before{content:"✓";position:absolute;left:0;top:.1em;width:22px;height:22px;border-radius:50%;background:var(--gold);color:var(--navy);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:14.5px}

  /* 0期生案内 */
  .first{background:linear-gradient(135deg,var(--navy3),var(--navy));color:#fff;border-radius:18px;padding:44px 40px;text-align:center;box-shadow:0 20px 50px rgba(26,42,79,.18);position:relative;overflow:hidden}
  .first::before{content:"";position:absolute;right:-80px;top:-60px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(196,162,78,.20),transparent 70%);pointer-events:none}
  .first .badge{display:inline-block;background:var(--gold);color:var(--navy);font-weight:800;padding:6px 16px;border-radius:999px;font-size:12px;letter-spacing:.05em;margin-bottom:16px;position:relative;z-index:1}
  .first h3{font-size:clamp(22px,3.4vw,32px);font-weight:900;line-height:1.4;margin-bottom:16px;position:relative;z-index:1}
  .first h3 .g{color:var(--gold)}
  .first p{font-size:16.5px;line-height:1.95;margin-bottom:24px;opacity:.95;position:relative;z-index:1;max-width:560px;margin-left:auto;margin-right:auto}
  .first .btn-gold{display:inline-block;background:var(--gold);color:var(--navy);font-weight:800;padding:14px 32px;border-radius:999px;font-size:16.5px;position:relative;z-index:1;transition:.2s}
  .first .btn-gold:hover{background:var(--gold-d);transform:translateY(-2px)}

  /* MVVバー */
  .mvvbar{background:var(--gold);color:var(--navy);font-weight:800;text-align:center;padding:16px 20px;border-radius:8px;font-size:14.5px;margin-top:34px;line-height:1.7}

  /* CTAバック */
  .cta-back{background:var(--ink);color:#fff;padding:60px 0;text-align:center}
  .cta-back h2{font-size:22px;font-weight:900;margin-bottom:24px}
  .btn{display:inline-block;background:var(--pink);color:#fff;padding:13px 28px;border-radius:999px;font-weight:800;font-size:16.5px;transition:.2s;margin:0 6px}
  .btn:hover{background:var(--pink-d)}
  .btn-ghost{display:inline-block;padding:13px 28px;border:1.5px solid #fff;border-radius:999px;font-weight:700;font-size:16.5px;color:#fff;margin:0 6px}

  footer{padding:30px 0;border-top:1px solid var(--line);text-align:center;color:var(--muted);font-size:14.5px}

  @media(max-width:680px){
    .programs{grid-template-columns:1fr}
    section.block{padding:60px 0}.hero{padding:72px 0 56px}
    .first{padding:34px 26px}
  }