/* 下層ページ共通（kenshu / works / privacy）。トップ・gyokaiと同じ色・書体 */
:root{
  --ink:#13161b;
  --ink-soft:#454b54;
  --paper:#fbfbf9;
  --paper-2:#f3f2ed;
  --line:#e3e1d8;
  --gold:#a9874e;
  --rule:#d8d5ca;
  --line-green:#06c755;
}
*{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:1.85;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 28px}
section[id]{scroll-margin-top:98px}

/* nav */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(251,251,249,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:78px}
.logo{display:flex;align-items:baseline;gap:10px;font-weight:900;letter-spacing:.02em;font-size:1.18rem}
.logo .eight{font-family:"Cormorant Garamond",serif;font-size:1.9rem;font-weight:600;color:var(--gold);line-height:1}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-size:.86rem;font-weight:500;letter-spacing:.04em;color:var(--ink-soft);transition:.3s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{padding:11px 22px;background:var(--line-green);color:#fff!important;border-radius:2px;font-weight:700}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.burger span{width:24px;height:2px;background:var(--ink)}

/* page head */
.page-head{padding:150px 0 60px;border-bottom:1px solid var(--line)}
.crumb{font-size:.8rem;color:var(--ink-soft);margin-bottom:18px}
.crumb a{text-decoration:underline}
.sec-tag{font-family:"Cormorant Garamond",serif;font-size:1.05rem;font-style:italic;color:var(--gold);letter-spacing:.06em}
.page-head h1{font-size:clamp(1.9rem,4vw,2.9rem);font-weight:900;line-height:1.4;margin:8px 0 18px}
.page-head p{color:var(--ink-soft);max-width:760px}

/* blocks */
.block{padding:80px 0}
.block.alt{background:var(--paper-2)}
.block h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:900;margin:6px 0 14px}
.block .lead{color:var(--ink-soft);margin-bottom:36px;max-width:760px}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:4px;padding:30px 28px;display:flex;flex-direction:column;transition:.35s}
a.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(0,0,0,.06);border-color:var(--rule)}
.card .code{font-family:"Cormorant Garamond",serif;font-style:italic;color:var(--gold);font-size:1.05rem}
.card h3{font-size:1.18rem;font-weight:900;line-height:1.5;margin:6px 0 10px}
.card p{color:var(--ink-soft);font-size:.93rem}
.card ul{margin:12px 0 0 1.2em;color:var(--ink-soft);font-size:.92rem}
.card .meta{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-size:.86rem;display:flex;flex-wrap:wrap;gap:6px 16px}
.card .meta b{color:var(--ink)}
.card .price{font-size:1.15rem;font-weight:900;color:var(--ink)}
.card .who{font-size:.86rem;color:var(--ink);background:var(--paper-2);padding:8px 12px;border-radius:3px;margin-bottom:6px}
.card .go{margin-top:16px;font-size:.88rem;font-weight:700;border-bottom:1px solid var(--gold);align-self:flex-start;padding-bottom:3px}
.tag{display:inline-block;font-size:.74rem;font-weight:700;background:var(--paper-2);color:var(--ink-soft);padding:3px 10px;border-radius:2px;margin-bottom:8px;align-self:flex-start}

/* table */
table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);font-size:.93rem}
th,td{padding:14px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:var(--paper-2);font-weight:700;white-space:nowrap}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:4px;margin-bottom:12px;padding:18px 22px}
.faq summary{font-weight:700;cursor:pointer}
.faq details p{margin-top:10px;color:var(--ink-soft)}

/* text page */
.doc h2{font-size:1.2rem;font-weight:900;margin:38px 0 10px;padding-left:12px;border-left:3px solid var(--gold)}
.doc p,.doc li{color:var(--ink-soft)}
.doc ul{margin:8px 0 0 1.4em}

/* cta */
.cta{background:var(--ink);color:var(--paper);padding:70px 0;text-align:center}
.cta h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:900;margin-bottom:14px}
.cta p{color:rgba(255,255,255,.7);margin-bottom:26px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:16px 30px;border-radius:2px;font-weight:700;margin:6px}
.btn.line{background:var(--line-green);color:#fff}
.btn.ghost{border:1px solid rgba(255,255,255,.4);color:#fff}

/* footer */
footer{border-top:1px solid var(--line);padding:50px 0 36px}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px}
.foot .brand .eight{font-family:"Cormorant Garamond",serif;font-size:1.7rem;color:var(--gold);font-weight:600}
.foot .brand b{display:block;font-weight:900}
.foot-links{display:flex;gap:22px;flex-wrap:wrap;max-width:620px}
.foot-links a{font-size:.88rem;color:var(--ink-soft)}
.copy{margin-top:34px;padding-top:20px;border-top:1px solid var(--line);font-size:.78rem;color:var(--ink-soft)}

@media(max-width:900px){
  .nav-links{position:fixed;inset:78px 0 auto 0;background:var(--paper);flex-direction:column;align-items:flex-start;gap:0;padding:0 28px;max-height:0;overflow:hidden;transition:.4s}
  .nav-links.open{max-height:520px;padding:14px 28px 24px;border-bottom:1px solid var(--line)}
  .nav-links a{padding:12px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav-cta{margin-top:10px;text-align:center}
  .burger{display:flex}
  .page-head{padding:120px 0 44px}
  .block{padding:60px 0}
  th{white-space:normal}
}