:root{
  --bg:#ffffff;
  --fg:#0b1220;
  --muted:#5b6475;
  --line:rgba(15,23,42,.12);
  --card:rgba(15,23,42,.04);
  --accent:#0a8f5b; /* green */
  --accent2:#111827;
  --radius:20px;
  --shadow:0 18px 40px rgba(2,6,23,.08);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  color:var(--fg); background:var(--bg);
  line-height:1.6;
}

a{color:inherit;text-decoration:none}
a:hover{opacity:.9}
.container{max-width:1120px;margin:0 auto;padding:0 18px}
.small{font-size:14px;color:var(--muted)}
.kicker{letter-spacing:.18em;text-transform:uppercase;font-size:12px;color:var(--accent);font-weight:700}
.h1{font-size:42px;line-height:1.12;margin:10px 0 14px}
.h2{font-size:30px;line-height:1.2;margin:0 0 12px}
.h3{font-size:18px;margin:0 0 6px}
.lead{font-size:16px;color:var(--muted);max-width:56ch}
.section{padding:72px 0}
.section.tight{padding:54px 0}
.hr{height:1px;background:var(--line);margin:0}

.header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.88);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:72px;
}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:132px;height:auto}
.nav{display:flex; gap:22px; align-items:center}
.nav a{font-weight:650; font-size:14px; color:var(--accent2)}
.nav a.active{color:var(--accent)}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:11px 16px; border-radius:999px; font-weight:700; font-size:14px;
  border:1px solid var(--line); background:#fff;
}
.btn.primary{background:var(--accent); color:#fff; border-color:transparent}
.btn.ghost{background:transparent}

.menu-btn{
  display:none; border:1px solid var(--line); background:#fff;
  width:44px;height:44px;border-radius:999px;
}
.menu-btn svg{width:20px;height:20px}
.mobile-panel{
  display:none; border-top:1px solid var(--line);
  background:rgba(255,255,255,.96);
}
.mobile-panel a{display:block;padding:14px 18px;border-bottom:1px solid var(--line);font-weight:650}

.hero{
  padding:68px 0 24px;
  background:
    radial-gradient(900px 420px at 10% 20%, rgba(10,143,91,.10), transparent 60%),
    radial-gradient(900px 420px at 90% 70%, rgba(17,24,39,.08), transparent 60%);
}
.hero-grid{
  display:grid; grid-template-columns: 1.15fr .85fr; gap:28px; align-items:center;
}
.hero-card{
  border:1px solid var(--line); background:rgba(255,255,255,.75);
  border-radius:var(--radius); padding:20px; box-shadow: var(--shadow);
}
.tagline{
  display:flex; flex-direction:column; gap:6px; margin:10px 0 16px;
}
.tagline span{
  font-size:34px; font-weight:850; line-height:1.08; letter-spacing:.02em;
}
.badges{display:flex; flex-wrap:wrap; gap:10px; margin:18px 0 0}
.badge{
  padding:8px 10px; border-radius:999px; border:1px solid var(--line);
  background:rgba(15,23,42,.03); font-size:12px; color:var(--muted);
}
.hero-ill{
  width:100%; height:auto; border-radius:var(--radius);
  border:1px solid var(--line); background:#fff; box-shadow: var(--shadow);
}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.card{
  border:1px solid var(--line); background:var(--card);
  border-radius:var(--radius); padding:18px;
}
.card.white{background:#fff}
.card p{margin:8px 0 0;color:var(--muted)}
.icon{
  width:42px;height:42px;border-radius:14px;
  background:rgba(10,143,91,.12);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:10px;color:var(--accent);
}
.icon svg{width:22px;height:22px}

.split{
  display:grid; grid-template-columns: .9fr 1.1fr; gap:22px; align-items:start;
}
.list{
  margin:0; padding-left:18px; color:var(--muted);
}
.table{
  width:100%; border-collapse:collapse; overflow:hidden;
  border:1px solid var(--line); border-radius:var(--radius);
}
.table th, .table td{
  padding:12px 14px; text-align:left; vertical-align:top;
  border-bottom:1px solid var(--line);
}
.table th{width:220px;background:rgba(15,23,42,.03);font-weight:800;color:var(--accent2)}
.table tr:last-child th,.table tr:last-child td{border-bottom:none}

.footer{
  padding:38px 0; border-top:1px solid var(--line);
  background:rgba(15,23,42,.02);
}
.footer-grid{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
.footer a{color:var(--muted);font-size:14px}
.copy{color:var(--muted);font-size:12px;margin-top:10px}

.breadcrumb{font-size:12px;color:var(--muted);padding:18px 0 0}
.pagehead{padding:26px 0 22px}
.pagehead .h1{font-size:34px}
.note{padding:12px 14px;border:1px dashed rgba(10,143,91,.35);border-radius:14px;background:rgba(10,143,91,.06);color:var(--muted);font-size:13px}

@media (max-width: 920px){
  .hero-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .nav{display:none}
  .menu-btn{display:inline-flex;align-items:center;justify-content:center}
  .mobile-panel{display:none}
  .h1{font-size:36px}
  .tagline span{font-size:30px}
}