@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700;900&display=swap');

:root{
  --navy:#1B2A4A;
  --navy-dark:#101a30;
  --gold:#D8B26B;
  --gold-dark:#b8925093;
  --cream:#FAF7F0;
  --ink:#2b2b2b;
  --muted:#6b6b6b;
  --line:#e7e1d3;
  --radius:14px;
  --shadow:0 10px 30px rgba(27,42,74,0.10);
  --maxw:1160px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  color:var(--ink);
  background:var(--cream);
  line-height:1.9;
  font-size:17px;
}
img{max-width:100%;display:block;border-radius:var(--radius);}
a{color:inherit;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
h1,h2,h3{font-weight:700;color:var(--navy);line-height:1.5;}
h1{font-size:clamp(28px,4vw,44px);font-weight:900;}
h2{font-size:clamp(22px,3vw,32px);margin-bottom:14px;}
h3{font-size:20px;margin-bottom:8px;}
p{color:var(--ink);}
.lede{color:var(--muted);font-size:18px;}
.btn{
  display:inline-block;padding:14px 30px;border-radius:999px;
  background:var(--gold);color:var(--navy-dark);font-weight:700;
  text-decoration:none;border:none;cursor:pointer;font-size:16px;
  transition:transform .18s ease, box-shadow .18s ease;
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-outline{
  background:transparent;color:var(--cream);border:2px solid var(--cream);
}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none;}

/* header */
header.site{
  position:sticky;top:0;z-index:50;background:rgba(250,247,240,0.92);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-row{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;max-width:var(--maxw);margin:0 auto;}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:20px;color:var(--navy);text-decoration:none;}
.brand img{width:34px;height:34px;border-radius:0;}
nav.main-links{display:flex;gap:26px;align-items:center;}
nav.main-links a{text-decoration:none;color:var(--navy);font-weight:500;font-size:15px;}
nav.main-links a:hover{color:var(--gold-dark);}
.burger{display:none;background:none;border:none;font-size:26px;color:var(--navy);cursor:pointer;}
@media(max-width:860px){
  nav.main-links{
    position:fixed;top:68px;right:0;left:0;background:var(--cream);
    flex-direction:column;padding:18px 24px;gap:16px;border-bottom:1px solid var(--line);
    transform:translateY(-130%);transition:transform .25s ease;
  }
  nav.main-links.open{transform:translateY(0);}
  .burger{display:block;}
}

/* hero */
.hero{
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-dark) 100%);
  color:var(--cream);padding:70px 0 90px;
}
.hero .container{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.hero h1{color:#fff;}
.hero p{color:#dfe3ee;}
.hero-cta{margin-top:26px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-img{border-radius:20px;overflow:hidden;box-shadow:0 25px 50px rgba(0,0,0,.35);}
@media(max-width:860px){.hero .container{grid-template-columns:1fr;}}

/* sections */
section{padding:70px 0;}
section.alt{background:#fff;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
@media(max-width:860px){.grid-3,.grid-2{grid-template-columns:1fr;}}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow);
}
section.alt .card{background:var(--cream);}
.icon-badge{
  width:52px;height:52px;border-radius:50%;background:var(--navy);color:var(--gold);
  display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px;
}
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
@media(max-width:860px){.steps{grid-template-columns:1fr 1fr;}}
.step{position:relative;padding-top:10px;}
.step::before{
  counter-increment:step;content:counter(step);
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;background:var(--gold);color:var(--navy-dark);
  font-weight:900;margin-bottom:10px;
}

/* pricing */
.price-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.price-table th,.price-table td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);}
.price-table th{background:var(--navy);color:#fff;}
.price-table tr:last-child td{border-bottom:none;}
.price-table td.amount{font-weight:700;color:var(--navy);white-space:nowrap;}

/* trust layer */
.trust{
  background:#101a30;color:#cfd6e6;padding:44px 0;font-size:14.5px;
}
.trust .container{display:grid;grid-template-columns:1fr 1fr;gap:30px;}
.trust h3{color:#fff;font-size:16px;}
.trust a{color:var(--gold);text-decoration:underline;}
@media(max-width:860px){.trust .container{grid-template-columns:1fr;}}

/* footer */
footer.site{background:var(--navy-dark);color:#9aa4bd;padding:34px 0;font-size:13.5px;}
footer.site a{color:#cfd6e6;text-decoration:none;margin-right:14px;}
footer.site a:hover{color:var(--gold);}

/* form */
form.lead{display:grid;gap:14px;}
form.lead label{font-weight:500;font-size:14.5px;color:var(--navy);display:block;margin-bottom:6px;}
form.lead input,form.lead textarea{
  width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);
  font-family:inherit;font-size:15px;background:#fff;
}
form.lead textarea{min-height:110px;resize:vertical;}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media(max-width:640px){.row-2{grid-template-columns:1fr;}}
.consent-line{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);}
.hp-field{position:absolute;left:-9999px;top:-9999px;}
.form-msg{font-size:14px;margin-top:8px;}
.form-msg.error{color:#b3261e;}
.form-msg.success{color:#1e7a34;}

/* cookie banner */
#cookie-banner{
  position:fixed;left:0;right:0;bottom:0;z-index:100;
  background:var(--navy-dark);color:#e6e9f2;padding:18px 24px;
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  box-shadow:0 -10px 30px rgba(0,0,0,.25);
}
#cookie-banner p{margin:0;font-size:13.5px;max-width:640px;color:#cfd6e6;}
#cookie-banner .actions{display:flex;gap:10px;}
.btn-small{padding:10px 18px;font-size:14px;}
#cookie-banner.hidden{display:none;}

/* faq */
details.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;margin-bottom:14px;}
details.faq-item summary{cursor:pointer;font-weight:700;color:var(--navy);font-size:16.5px;}
details.faq-item p{margin-top:12px;color:var(--muted);}

/* 404 */
.error-page{min-height:60vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:80px 20px;}
.error-page h1{font-size:80px;color:var(--gold-dark);margin:0;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;scroll-behavior:auto !important;}
}