/* AIbiNext 下層ページ共通（A案 editorial と同じ配色・書体） */
:root{
  --paper:#F8F4EC; --paper2:#FFFFFF; --ink:#1B1C24; --ink-soft:#535560;
  --ai:#243B6B; --ai-deep:#16244A; --ai-soft:#E7ECF4;
  --gold:#A9853E; --gold-soft:#F0E6D2; --shu:#B8442E;
  --line:#E2D9C8; --shadow:0 30px 70px -34px rgba(22,36,74,.34);
  --maxw:1180px;
}
*{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:1.9;-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:var(--gold);color:#fff}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 30px}
section{scroll-margin-top:88px}
h1,h2,h3{text-wrap:balance}  /* 見出しの末尾1〜2文字だけが次行に落ちるのを防ぐ */
.eyebrow{font-family:"Fraunces",serif;font-style:italic;font-size:.92rem;letter-spacing:.05em;
  color:var(--gold);display:inline-flex;align-items:center;gap:.7em}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold)}

/* NAV */
header.nav{position:fixed;inset:0 0 auto 0;z-index:50;background:rgba(248,244,236,.92);
  backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;max-width:var(--maxw);
  margin:0 auto;padding:14px 30px}
.logo{display:flex;align-items:center;gap:14px;font-weight:900;font-size:1.26rem;letter-spacing:.02em}
.logo .mark{
  width:48px;height:48px;border-radius:12px;
  border:1.5px solid rgba(36,59,107,.35);
  display:flex;align-items:center;justify-content:center;
  padding:3px;background:#040817;
  box-shadow:0 6px 16px -4px rgba(10,16,36,.35);
  position:relative;flex:0 0 48px;
}
.logo .mark img{
  width:100%;height:100%;object-fit:contain;display:block;
  border-radius:8px;
  image-rendering:-webkit-optimize-contrast;
  filter:contrast(1.06) brightness(1.03);
  transform:translateZ(0);
}
.logo small{display:block;font-family:"Fraunces",serif;font-style:italic;font-weight:400;font-size:.62rem;
  letter-spacing:.2em;color:var(--ink-soft)}
nav ul{display:flex;gap:28px;list-style:none;font-size:.92rem;font-weight:500}
nav a{color:var(--ink-soft);position:relative;padding:4px 0;transition:.25s}
nav a::after{content:"";position:absolute;left:0;bottom:-1px;width:0;height:1px;background:var(--gold);transition:.3s}
nav a:hover,nav a.on{color:var(--ink)}nav a:hover::after,nav a.on::after{width:100%}
.nav-cta{background:var(--ai);color:#fff!important;padding:11px 24px;border-radius:4px;font-weight:700;
  font-size:.86rem;transition:.3s}
.nav-cta:hover{background:var(--ai-deep)}

/* PAGE HERO */
.phero{padding:150px 0 70px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.phero .wash{position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(36,59,107,.08),transparent 70%);right:-80px;top:20px}
.crumb{font-size:.84rem;color:var(--ink-soft);margin-bottom:18px;position:relative}
.crumb a{color:var(--ai);border-bottom:1px solid var(--gold-soft)}
.phero h1{font-family:"Shippori Mincho",serif;font-weight:800;font-size:clamp(2.2rem,5vw,3.6rem);
  line-height:1.45;color:var(--ai-deep);margin:18px 0 18px;position:relative}
.phero h1 .g{color:var(--gold)}
.phero p.lead{font-size:1.08rem;color:var(--ink-soft);max-width:38em;position:relative}

/* SECTION */
section.block{padding:90px 0}
section.alt{background:var(--paper2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:40em;margin-bottom:44px}
.sec-head h2{font-family:"Shippori Mincho",serif;font-weight:700;font-size:clamp(1.7rem,3.4vw,2.4rem);
  line-height:1.55;margin-top:14px;color:var(--ai-deep)}
.sec-head h2 .g{color:var(--gold)}
.sec-head p{color:var(--ink-soft);margin-top:12px}

/* 概要の3点 */
.pts{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pt{background:var(--paper2);border:1px solid var(--line);border-radius:8px;padding:30px 28px}
section.alt .pt{background:var(--paper)}
.pt .no{font-family:"Fraunces",serif;font-size:2.2rem;color:var(--gold);line-height:1}
.pt h3{font-family:"Shippori Mincho",serif;font-size:1.25rem;color:var(--ai-deep);margin:12px 0 8px}
.pt p{color:var(--ink-soft);font-size:.95rem}

/* 料金表（参考：メニュー｜料金 の2列） */
.plan{margin-bottom:46px}
.plan h3{font-family:"Shippori Mincho",serif;font-size:1.45rem;color:var(--ai-deep);margin-bottom:6px}
.plan h3 .k{font-family:"Fraunces",serif;font-style:italic;color:var(--gold);font-size:1rem;margin-right:.5em}
.plan .desc{color:var(--ink-soft);font-size:.95rem;margin-bottom:16px}
.ptbl{width:100%;border-collapse:collapse;background:var(--paper2);border:1px solid var(--line);
  border-radius:8px;overflow:hidden}
.ptbl th,.ptbl td{text-align:left;padding:18px 22px;border-bottom:1px solid var(--line);vertical-align:top}
.ptbl thead th{background:var(--ai-deep);color:#fff;font-weight:700;font-size:.92rem;letter-spacing:.05em}
.ptbl tbody tr:last-child td{border-bottom:none}
.ptbl td.menu{font-weight:700;color:var(--ai-deep);width:44%}
.ptbl td.menu small{display:block;font-weight:400;color:var(--ink-soft);font-size:.86rem;margin-top:4px}
.ptbl td.price{font-weight:700;font-size:1.05rem}
.ptbl td.price .y{color:var(--shu)}
.ptbl td.price small{display:block;font-weight:400;color:var(--ink-soft);font-size:.86rem}
.ptbl td.price.free .y{color:var(--ai)}
.notes{list-style:none;color:var(--ink-soft);font-size:.9rem;margin-top:8px}
.notes li{padding-left:1.2em;text-indent:-1.2em}
.notes li::before{content:"※ "}

/* 大きな料金カード（研修） */
.price-card{display:grid;grid-template-columns:1fr 1.1fr;background:var(--ai-deep);color:#fff;border-radius:10px;
  overflow:hidden;box-shadow:var(--shadow)}
.price-card .l{padding:44px 44px;border-right:1px solid rgba(255,255,255,.14)}
.price-card .r{padding:44px 44px;background:rgba(255,255,255,.03)}
.price-card .k{font-family:"Fraunces",serif;font-style:italic;color:var(--gold);font-size:.95rem}
.price-card .amount{font-family:"Shippori Mincho",serif;font-size:clamp(2.6rem,6vw,4rem);font-weight:800;line-height:1.2;margin:10px 0 4px}
.price-card .amount small{font-size:1.1rem;font-weight:600;margin-left:.3em}
.price-card .per{color:rgba(255,255,255,.75)}
.spec{list-style:none;display:grid;gap:14px}
.spec li{display:grid;grid-template-columns:7.5em 1fr;gap:12px;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.12)}
.spec li:last-child{border-bottom:none;padding-bottom:0}
.spec b{color:var(--gold);font-weight:700}

/* テーマ・カード */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:var(--paper2);border:1px solid var(--line);border-radius:8px;padding:28px 30px;position:relative}
section.alt .card{background:var(--paper)}
.card .no{font-family:"Fraunces",serif;font-style:italic;color:var(--gold)}
.card h3{font-family:"Shippori Mincho",serif;font-size:1.22rem;color:var(--ai-deep);margin:6px 0 8px}
.card p{color:var(--ink-soft);font-size:.94rem}
.card .for{display:inline-block;margin-top:12px;font-size:.8rem;border:1px solid var(--line);border-radius:30px;
  padding:3px 12px;color:var(--ai)}

/* 流れ */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:st}
.flow .st{background:var(--paper2);border:1px solid var(--line);border-top:3px solid var(--ai);border-radius:6px;padding:22px 18px}
section.alt .flow .st{background:var(--paper)}
.flow .st::before{counter-increment:st;content:"STEP " counter(st);font-family:"Fraunces",serif;font-style:italic;
  color:var(--gold);font-size:.86rem}
.flow .st h3{font-size:1.02rem;color:var(--ai-deep);margin:6px 0 6px}
.flow .st p{font-size:.88rem;color:var(--ink-soft)}

/* 時間配分バー */
.tl{display:flex;border-radius:8px;overflow:hidden;border:1px solid var(--line);margin-bottom:14px}
.tl div{padding:16px 14px;color:#fff;font-size:.9rem;line-height:1.5}
.tl div b{display:block;font-size:1rem}
.tl .a{background:var(--ai);flex:50}.tl .b{background:var(--gold);flex:30}.tl .c{background:#5A6B8C;flex:10}

/* FAQ */
.faq details{background:var(--paper2);border:1px solid var(--line);border-radius:6px;margin-bottom:12px;padding:0 24px}
section.alt .faq details{background:var(--paper)}
.faq summary{cursor:pointer;font-weight:700;color:var(--ai-deep);padding:18px 0;list-style:none}
.faq summary::before{content:"Q. ";color:var(--gold);font-family:"Fraunces",serif}
.faq details p{padding:0 0 18px;color:var(--ink-soft)}

/* 相互リンク帯 */
.xlink{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;background:var(--paper2);
  border:1px solid var(--line);border-left:4px solid var(--gold);border-radius:8px;padding:28px 32px}
.xlink h3{font-family:"Shippori Mincho",serif;color:var(--ai-deep);font-size:1.2rem}
.xlink p{color:var(--ink-soft);font-size:.92rem}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 28px;border-radius:4px;font-weight:700;
  font-size:.96rem;transition:.3s;border:none;cursor:pointer}
.btn-primary{background:var(--ai);color:#fff}
.btn-primary:hover{background:var(--ai-deep)}
.btn-ghost{color:var(--ai);border:1.5px solid var(--ai)}
.btn-ghost:hover{background:var(--ai);color:#fff}

/* CONTACT */
.contact{background:var(--ai-deep);color:#fff;text-align:center;padding:90px 0}
.contact h2{font-family:"Shippori Mincho",serif;font-weight:700;font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.5;margin:16px 0 12px}
.contact h2 .g{color:var(--gold)}
.contact p{color:rgba(255,255,255,.78);margin-bottom:30px}
.contact .btn-primary{background:var(--gold)}
.contact .btn-primary:hover{background:#8f6f31}

/* FOOTER */
footer.ft{background:#0F1A36;color:rgba(255,255,255,.6);padding:44px 0 36px;font-size:.86rem}
.ft-top{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;padding-bottom:22px;border-bottom:1px solid rgba(255,255,255,.12)}
.ft-top .logo{color:#fff}.ft-top .logo small{color:rgba(255,255,255,.5)}
.ft-links{display:flex;gap:24px;flex-wrap:wrap;align-items:center}
.ft-links a{color:rgba(255,255,255,.7)}.ft-links a:hover{color:var(--gold)}
.ft-bot{padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.8rem}

@media(max-width:920px){
  nav ul{display:none}
  .wrap{padding:0 16px}
  .nav-inner{padding:12px 16px}
  .pts,.cards{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr 1fr}
  .price-card{grid-template-columns:1fr}
  .price-card .l{border-right:none;border-bottom:1px solid rgba(255,255,255,.14)}
  .price-card .l,.price-card .r{padding:32px 24px}
  .xlink{grid-template-columns:1fr}
  .ptbl td.menu{width:auto}
  .ptbl th,.ptbl td{padding:14px 14px}
  .spec li{grid-template-columns:1fr;gap:2px}
  .phero{padding-top:120px}
}
@media(max-width:560px){
  .ptbl thead{display:none}
  .ptbl tr{display:block;border-bottom:1px solid var(--line)}
  .ptbl td{display:block;border-bottom:none}
  .ptbl td.price{padding-top:0}
  .flow{grid-template-columns:1fr}
  .tl{flex-direction:column}
  .nav-cta{padding:9px 14px;font-size:.8rem}
  .logo small{display:none}
}