:root{
  --paper:#fbfaf7; --ink:#1a1c1f; --accent:#0f8f5f; --warm:#c8651b;
  --muted:#5f6469; --dim:#8d939a; --rule:#e2ded5;
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans JP",system-ui,sans-serif;font-size:17px;line-height:1.95;letter-spacing:.01em}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{width:min(1140px,calc(100% - 48px));margin:0 auto}

.ribbon{background:var(--ink);color:#e8e4da;font-size:11px}
.ribbon .wrap{display:flex;justify-content:space-between;padding:7px 0;letter-spacing:.1em}
.head .wrap{display:flex;align-items:flex-end;gap:26px;padding:22px 0 15px;border-bottom:3px double var(--ink)}
.logo{display:flex;align-items:center;gap:11px}
.logo img{width:34px;height:34px}
.logo span{font-family:"Zen Old Mincho",serif;font-size:27px;letter-spacing:.03em}
.nav{margin-left:auto;display:flex;gap:16px;flex-wrap:wrap}
.nav a{font-size:12.5px;color:var(--muted);padding-bottom:2px;border-bottom:1px solid transparent}
.nav a.on{color:var(--ink);border-color:var(--accent)}
.cta{background:var(--accent);color:#fff;font-size:12px;padding:9px 15px}

.lead{display:grid;grid-template-columns:1.05fr .95fr;gap:0;border-bottom:1px solid var(--rule)}
.lead .txt{padding:36px 40px 32px 0}
.lead .txt .lb{font-size:10px;letter-spacing:.28em;color:var(--accent);margin:0 0 12px}
h1{font-family:"Zen Old Mincho",serif;font-size:clamp(28px,3.6vw,44px);line-height:1.55;margin:0 0 14px;font-weight:600}
.lead p{color:var(--muted);font-size:14.6px;margin:0 0 12px;max-width:520px}
.lead .act{display:flex;gap:9px;margin-top:18px;flex-wrap:wrap}
.b2{background:var(--ink);color:#fff;font-size:12.5px;padding:11px 18px}
.b2.o{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.lead figure{margin:0;padding:26px 0 26px 30px;border-left:1px solid var(--rule)}
.lead figure img{width:100%;border:1px solid var(--rule);box-shadow:0 10px 28px rgba(30,25,15,.12)}
.lead figcaption{font-size:10.5px;color:var(--dim);margin-top:8px;line-height:1.7}

.partners{padding:16px 0;border-bottom:1px solid var(--rule)}
.partners h2{font-size:9.5px;letter-spacing:.24em;color:var(--dim);margin:0 0 9px;font-weight:500}
.pw{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.pw a{height:84px;background:#fff;border:1px solid var(--rule);display:flex;align-items:center;justify-content:center;overflow:hidden}
.pw img{width:100%;height:100%;object-fit:cover}

section{padding:32px 0 4px}
.sh{display:grid;grid-template-columns:56px 1fr auto;align-items:baseline;gap:10px;border-bottom:1px solid var(--ink);padding-bottom:8px;margin-bottom:16px}
.sh i{font-style:normal;font-size:10px;letter-spacing:.14em;color:var(--warm)}
.sh h2{font-family:"Zen Old Mincho",serif;font-size:21px;margin:0;font-weight:600}
.sh span{font-size:10.5px;color:var(--dim)}
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{border-top:2px solid var(--ink);padding-top:11px}
.card b{display:block;font-family:"Zen Old Mincho",serif;font-size:16.5px;margin-bottom:4px}
.card p{margin:0;font-size:13px;color:var(--muted)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:38px}
.split p{color:var(--muted);font-size:14px;margin:0 0 10px}
.flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.flow li{border-left:1px solid var(--rule);padding-left:12px}
.flow i{font-style:normal;font-size:9.5px;letter-spacing:.14em;color:var(--accent)}
.flow b{display:block;font-size:14.5px;margin:5px 0 3px}
.flow p{margin:0;font-size:12.4px;color:var(--muted)}
.note{border:1px solid var(--rule);background:#fff;padding:12px 15px;font-size:13px;color:var(--muted);margin-top:16px}

.ph{padding:34px 0 18px;border-bottom:3px double var(--ink)}
.ph .lb{font-size:10px;letter-spacing:.24em;color:var(--warm);margin:0 0 8px}
.ph h1{font-size:clamp(26px,3.4vw,38px);margin:0 0 8px}
.ph p{color:var(--muted);font-size:13.8px;max-width:640px;margin:0}

.rows{margin-top:18px;border-top:1px solid var(--ink)}
.rows .r{display:grid;grid-template-columns:58px 1fr 96px;gap:16px;padding:13px 0;border-bottom:1px solid var(--rule);align-items:baseline}
.rows i{font-style:normal;font-size:10px;color:var(--warm)}
.rows b{font-family:"Zen Old Mincho",serif;font-size:16px}
.rows p{margin:2px 0 0;font-size:12.8px;color:var(--muted)}
.rows em{font-style:normal;font-size:10px;color:var(--dim);text-align:right}
.long{max-width:730px;margin:0 auto}
.long h2{font-family:"Zen Old Mincho",serif;font-size:20.5px;margin:30px 0 6px;display:grid;grid-template-columns:36px 1fr;gap:8px;align-items:baseline}
.long h2 i{font-style:normal;font-size:10px;color:var(--warm)}
.long p{color:var(--muted);font-size:14.4px;margin:0 0 11px}
.pull{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:10px 0;margin:16px 0;font-family:"Zen Old Mincho",serif;font-size:17px;color:var(--ink)}
details{background:#fff;border:1px solid var(--rule);margin-bottom:7px}
summary{cursor:pointer;list-style:none;padding:12px 15px;font-size:14.4px;font-weight:700;display:flex;gap:10px}
summary:before{content:"Q";font-size:10px;color:var(--accent);padding-top:4px}
summary:after{content:"+";margin-left:auto;color:var(--accent)}
details[open] summary:after{content:"−"}
details p{margin:0;padding:0 15px 13px 35px;font-size:13.2px;color:var(--muted)}
dl{margin:0}
dt{font-family:"Zen Old Mincho",serif;font-size:16px;margin-top:18px}
dd{margin:4px 0 0;color:var(--muted);font-size:13.2px;padding-bottom:11px;border-bottom:1px solid var(--rule)}
footer{border-top:3px double var(--ink);margin-top:40px;padding:18px 0 26px;font-size:11px;color:var(--dim)}
footer .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:20px}
footer b{display:block;color:var(--ink);font-family:"Zen Old Mincho",serif;font-size:14px;margin-bottom:4px}
footer p{margin:0;line-height:1.8}
@media(max-width:900px){
  .wrap{width:calc(100% - 30px)}
  .lead{grid-template-columns:1fr}
  .lead .txt{padding:26px 0 10px}
  .lead figure{padding:0 0 20px;border-left:0}
  .three,.split{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr 1fr}
  .pw{grid-template-columns:1fr 1fr}
  .nav{display:none}
  .rows .r{grid-template-columns:40px 1fr}
  footer .wrap{grid-template-columns:1fr}
}