:root{
  --bg:#f6fbfd;
  --card:#ffffff;
  --text:#142033;
  --muted:#5d6b82;
  --primary:#0876bd;
  --primary-dark:#075f98;
  --accent:#00958a;
  --line:#dce8ef;
  --soft:#eef8fb;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#f7fcff 0%,#ffffff 48%,#f1f7fb 100%);
  line-height:1.75;
}
a{color:inherit;text-decoration:none}
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:1080px;margin:0 auto;padding:18px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800}
.logo{
  width:42px;height:42px;border-radius:10px;
  background:linear-gradient(135deg,#049ca0,#0876bd);
  color:white;display:grid;place-items:center;font-weight:900;letter-spacing:.5px;
}
.brand-sub{font-size:12px;color:var(--muted);font-weight:600;margin-top:-4px}
.nav{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.nav a{
  padding:9px 14px;border-radius:10px;font-weight:800;color:#23364f;
}
.nav a.active,.nav a:hover{background:var(--primary);color:white;box-shadow:0 7px 18px rgba(8,118,189,.22)}
.hero{
  max-width:1080px;margin:0 auto;padding:86px 20px 74px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;
}
.kicker{color:var(--accent);font-size:14px;font-weight:900;margin-bottom:12px}
h1{font-size:44px;line-height:1.25;margin:0 0 20px;letter-spacing:-.02em}
h2{font-size:30px;line-height:1.35;margin:0 0 20px}
h3{font-size:20px;margin:0 0 10px}
.lead{font-size:18px;font-weight:800;margin-bottom:16px}
p{margin:0 0 14px}
.muted{color:var(--muted)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.button{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 20px;border-radius:10px;font-weight:900;border:1px solid var(--line);
  background:white;color:var(--primary);
}
.button.primary{background:var(--primary);color:white;border-color:var(--primary)}
.button:hover{transform:translateY(-1px)}
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:26px;box-shadow:0 18px 50px rgba(20,32,51,.08);
}
.stats-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;font-weight:900;color:#65758b}
.badge{
  background:var(--soft);color:var(--primary-dark);border-radius:10px;
  padding:8px 13px;font-weight:900;font-size:22px;
}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tile{
  background:linear-gradient(180deg,#f8fdff,#eef8fb);
  border:1px solid var(--line);border-radius:10px;
  min-height:66px;display:grid;place-items:center;font-weight:900;color:#17364e;
}
section{max-width:1080px;margin:0 auto;padding:58px 20px}
.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{
  background:white;border:1px solid var(--line);border-radius:14px;padding:22px;
  box-shadow:0 10px 30px rgba(20,32,51,.05);
}
.app-card{
  display:flex;flex-direction:column;gap:10px;min-height:230px;
}
.app-icon{
  width:54px;height:54px;border-radius:16px;background:linear-gradient(135deg,#ffe1a8,#f3a45e);
  display:grid;place-items:center;font-size:28px;
}
.tag{display:inline-block;background:#eef8fb;color:#087070;border:1px solid #d2ecec;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:900}
.page-hero{
  max-width:1080px;margin:0 auto;padding:68px 20px 34px;
}
.content{
  max-width:900px;margin:0 auto;padding:20px 20px 70px;
}
.content .panel{padding:34px}
.content h2{margin-top:30px;font-size:24px}
.content ul{padding-left:1.4em}
.notice{
  background:#fff9e8;border:1px solid #f2dda3;border-radius:12px;padding:16px;margin:20px 0;
}
.footer{
  border-top:1px solid var(--line);background:#ffffff;
  padding:30px 20px;color:var(--muted);font-size:13px;
}
.footer-inner{max-width:1080px;margin:0 auto;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
.footer a{color:var(--primary);font-weight:800}
@media(max-width:820px){
  .header-inner{align-items:flex-start;flex-direction:column}
  .hero,.split{grid-template-columns:1fr;gap:28px;padding-top:48px}
  h1{font-size:34px}
  .cards{grid-template-columns:1fr}
  .nav{width:100%}
  .nav a{padding:8px 10px}
}