:root{
  --bg:#0a0f14; /* dark navy */
  --bg-soft:#0f1620;
  --card:#111a26;
  --text:#e9f1fb;
  --muted:#b8c4d6;
  --brand:#2eaadc;
  --brand-2:#6dd3ff;
  --accent:#4de7c4;
  --danger:#ff6b6b;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --radius:18px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(180deg,var(--bg) 0%, var(--bg-soft) 100%);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Noto Sans JP",sans-serif;line-height:1.65}
a{color:var(--brand);text-decoration:none}
a:hover{opacity:.9}
img{max-width:100%;height:auto}
.container{max-width:1120px;margin:0 auto;padding:24px}
header{position:sticky;top:0;background:rgba(10,15,20,.7);backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid rgba(255,255,255,.06);z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:12px;font-weight:700}
.logo-badge{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#00212e;font-weight:800}
.nav a{margin-left:18px;color:var(--text);opacity:.9}
.nav a.btn{margin-left:24px;padding:10px 16px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--accent));color:#00212e;font-weight:700;box-shadow:var(--shadow)}

.hero{padding:64px 0 28px}
.hero .wrap{display:grid;grid-template-columns:0.6fr .8fr;gap:28px;align-items:center}
.hero .wrap .left{text-align: center;}
.hero h1{font-size:clamp(28px,4.4vw,46px);line-height:1.2;margin:.2em 0 .3em}
.lead{font-size:clamp(15px,1.8vw,18px);color:var(--muted)}
.hero-card{background:linear-gradient(180deg,var(--card),#0b131e);border:1px solid rgba(255,255,255,.06);padding:22px;border-radius:var(--radius);box-shadow:var(--shadow)}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}
.badge{padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.06);color:var(--text);font-size:12px;border:1px solid rgba(255,255,255,.08)}

section{padding:40px 0;border-top:1px solid rgba(255,255,255,.06)}
h2{font-size:clamp(22px,3vw,28px);margin:0 0 18px}

.grid{display:grid;gap:16px}
@media(min-width:780px){
  .grid.cols-3{grid-template-columns:repeat(3,1fr)}
  .grid.cols-2{grid-template-columns:repeat(2,1fr)}
}
.card{background:linear-gradient(180deg,var(--card),#0b131e);border:1px solid rgba(255,255,255,.07);padding:18px;border-radius:var(--radius);box-shadow:var(--shadow)}
.card h3{margin-top:0;font-size:18px}
.muted{color:var(--muted)}

.kv{display:flex;gap:10px;flex-direction: column;}
.kv .k{width:180px;color:var(--muted)}
.kv .v{flex:1}

.table{width:100%;border-collapse:separate;border-spacing:0}
.table th,.table td{padding:10px 12px;text-align:left;border-bottom:1px solid rgba(255,255,255,.07)}
.table th{color:var(--muted);font-weight:600; width: 100px}

.notice{background:rgba(77,231,196,.08);border:1px solid rgba(77,231,196,.25);padding:12px 14px;border-radius:12px}

footer{padding:36px 0;color:var(--muted); border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:grid;gap:16px}
@media(min-width:780px){.footer-grid{grid-template-columns:1fr 1fr}}
.small{font-size:12px;color:var(--muted)}

form{display:grid;gap:12px}
input,textarea{background:#0a121d;border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:12px;color:var(--text);width:100%}
input::placeholder,textarea::placeholder{color:#7d8aa0}
button{background:linear-gradient(135deg,var(--brand),var(--accent));color:#00212e;border:none;border-radius:12px;padding:12px 16px;font-weight:800;cursor:pointer;box-shadow:var(--shadow)}

.tag{display:inline-block;font-size:12px;padding:2px 8px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.08);color:var(--muted)}

@media print{
  header,.hero .wrap>div:last-child,.nav a.btn{display:none !important}
  body{background:white;color:black}
  .card,section,footer{box-shadow:none !important;border-color:#ddd;background:white}
  a{color:#0645ad}
}