:root{
  --blue:#0A5FD6;          /* 独力ブルー */
  --navy:#0E2A57;          /* 濃紺 */
  --deep:#002B5B;          /* 勝色 */
  --bg:#F6F8FC;
  --text:#0F172A;
  --muted:#5B6B82;
  --white:#FFFFFF;
  --line:#E5ECF6;
  --shadow:0 6px 24px rgba(14,42,87,.12);
  --radius:14px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  color:var(--text);
  background:#fff;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI","YuGothic","Meiryo",sans-serif;
  line-height:1.75;
  letter-spacing:.02em;
}

img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{opacity:.9}
.container{width:min(1100px,92%);margin-inline:auto}

.skip-link{
  position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;
}
.skip-link:focus{left:16px;top:16px;width:auto;height:auto;background:#fff;padding:.5rem .75rem;border-radius:8px;box-shadow:var(--shadow)}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:.75rem 0}
.logo{display:flex;align-items:center;gap:.5rem;font-weight:800;color:var(--navy)}
.logo-mark{
  display:inline-grid;place-items:center;
  width:36px;height:36px;border-radius:8px;background:linear-gradient(135deg,var(--blue),var(--deep));
  color:#fff;font-weight:900;
}
.logo-text{font-size:1.2rem;letter-spacing:.08em}

.site-nav ul{display:flex;align-items:center;gap:1rem;margin:0;padding:0;list-style:none}
.site-nav a{display:inline-block;padding:.5rem .25rem;color:var(--navy);font-weight:600}
.nav-toggle{display:none}
.nav-toggle-btn{display:none}

/* Hero */
.hero{
  background:
    radial-gradient(1200px 400px at 50% -10%, rgba(10,95,214,.18), transparent 60%),
    linear-gradient(#fcfdff,#f2f6ff);
  border-bottom:1px solid var(--line);
}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:2rem;align-items:center;padding:3.5rem 0}
.lead-head{color:var(--deep);font-weight:800;letter-spacing:.12em;margin:0 0 .25rem}
.hero-title{font-size:clamp(1.8rem,3.2vw,2.6rem);line-height:1.35;margin:.25rem 0 1rem;color:var(--navy);font-weight:900}
.hero-sub{color:var(--muted);margin:0 0 1rem}
.hero-sign{font-weight:800;color:var(--navy);margin:0 0 1.25rem}
.hero-cta{display:flex;gap:.75rem;flex-wrap:wrap;margin-bottom:1rem}
.trust-badges{display:flex;gap:.75rem;flex-wrap:wrap;padding:0;margin:1rem 0 0;list-style:none}
.trust-badges li{background:#eef4ff;color:var(--deep);padding:.4rem .6rem;border-radius:999px;font-size:.9rem;font-weight:700;border:1px solid #d7e5ff}

.hero-visual{display:grid;place-items:center}
.hero-photo{
  width:min(360px,80%);aspect-ratio:3/4;border-radius:18px;
  background:linear-gradient(135deg,#d7e8ff,#b5ceff);
  color:var(--deep);display:grid;place-items:center;font-weight:900;letter-spacing:.2em;border:3px solid #c2d8ff;
}

/* Sections */
.section{padding:3.5rem 0}
.section--alt{background:var(--bg)}
.section-title{font-size:1.6rem;margin:0 0 1rem;color:var(--navy);letter-spacing:.06em}
.grid-2{display:grid;gap:1.5rem;grid-template-columns:1fr 1fr}
.cards{display:grid;gap:1rem;grid-template-columns:repeat(4,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1rem;box-shadow:var(--shadow);
}
.card h3{margin:.2rem 0 .5rem;color:var(--deep)}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1rem;box-shadow:var(--shadow)}
.aside-title{margin:.2rem 0 1rem;color:var(--deep)}
.list-check,.list-bullet{padding-left:1.1rem}
.list-check li{margin:.35rem 0;list-style:"✓  "}
.list-bullet li{margin:.35rem 0;list-style:disc;color:var(--text)}
.note{color:var(--muted);font-size:.9rem}
.center{text-align:center}

/* Policy */
.policy{
  background:#fff;border:1px dashed #c9d8ef;border-radius:var(--radius);padding:1rem
}

/* Pricing */
.price-cards{
  display:grid;gap:1rem;grid-template-columns:repeat(3,1fr)
}
.price-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:.75rem
}
.price-card h3{margin:0 0 .25rem;color:var(--deep)}
.price{font-size:2rem;font-weight:900;color:var(--navy);margin:.25rem 0 .5rem}
.price span{font-size:1rem}
.price .per{font-size:.95rem;color:var(--muted)}
.price-card ul{margin:0 0 .75rem;padding-left:1rem}
.ribbon{
  position:absolute;top:12px;right:-8px;background:var(--blue);color:#fff;padding:.25rem .6rem;border-radius:999px;font-size:.8rem;font-weight:800;box-shadow:var(--shadow)
}

/* Flow */
.flow{counter-reset:step;padding-left:0;margin:0;display:grid;gap:.75rem}
.flow li{
  list-style:none;border:1px solid var(--line);border-radius:12px;padding:.75rem 1rem;background:#fff;box-shadow:var(--shadow);position:relative
}
.flow li::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:-12px;top:-12px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  color:#fff;background:var(--blue);font-weight:800;box-shadow:var(--shadow)
}

/* FAQ */
.faq details{border:1px solid var(--line);border-radius:12px;background:#fff;padding:.75rem 1rem;margin:.5rem 0;box-shadow:var(--shadow)}
.faq summary{cursor:pointer;font-weight:800;color:var(--navy)}
.faq p{margin:.5rem 0 0}

/* Message */
.message{background:linear-gradient(180deg,#f4f7ff,#eef3ff)}
.cta-box{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:1rem;box-shadow:var(--shadow);align-self:start
}
.cta-title{margin:.25rem 0 1rem;font-weight:900;color:var(--navy);text-align:center}

/* Contact */
.contact-form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:1rem;box-shadow:var(--shadow)}
.form-grid{display:grid;gap:1rem;grid-template-columns:1fr 1fr}
.form-grid label{display:flex;flex-direction:column;gap:.35rem;font-weight:700;color:var(--navy)}
.form-grid .full{grid-column:1/-1}
input,select,textarea{
  border:1px solid #cfe0f7;border-radius:10px;padding:.6rem .7rem;font:inherit;background:#f9fbff
}
input:focus,select:focus,textarea:focus{outline:2px solid rgba(10,95,214,.25);background:#fff}
.agree{margin:1rem 0}

/* Footer */
.site-footer{background:var(--navy);color:#cfe1ff;padding:2rem 0;margin-top:2rem}
.footer-grid{display:grid;gap:1rem;grid-template-columns:1.2fr .8fr 1fr;align-items:start}
.logo--foot .logo-mark{background:linear-gradient(135deg,var(--deep),#184a8a)}
.foot-copy{margin:.5rem 0 0}
.foot-nav,.foot-legal ul{list-style:none;padding:0;margin:0}
.foot-nav li,.foot-legal li{margin:.25rem 0}
.foot-nav a,.foot-legal a{color:#e6f0ff}
.copyright{margin:.5rem 0 0;color:#a9c3ef;font-size:.9rem}

/* Buttons */
.btn{display:inline-block;padding:.75rem 1rem;border-radius:12px;font-weight:800;letter-spacing:.04em;border:2px solid transparent}
.btn--primary{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 6px 18px rgba(10,95,214,.25)}
.btn--primary:hover{filter:saturate(1.05) brightness(1.02)}
.btn--ghost{background:#fff;color:var(--blue);border-color:#bcd4ff}
.btn--outline{background:#fff;border-color:var(--blue);color:var(--blue)}
.btn--block{display:block;width:100%}
.btn--sm{padding:.5rem .75rem;border-radius:10px}

/* Utilities */
.grid-2 > *{min-width:0}
.center{text-align:center}

/* Responsive */
@media (max-width: 960px){
  .hero-inner{grid-template-columns:1fr;gap:1.5rem;padding:2.5rem 0}
  .cards{grid-template-columns:repeat(2,1fr)}
  .price-cards{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .site-nav{position:fixed;inset:64px 0 0 0;background:#fff;transform:translateY(-120%);transition:.25s;padding:1rem 4%}
  .site-nav ul{flex-direction:column;align-items:flex-start;gap:.25rem}
  .nav-toggle-btn{display:grid;place-items:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--line)}
  .nav-toggle-btn span,
  .nav-toggle-btn span::before,
  .nav-toggle-btn span::after{
    content:"";display:block;width:22px;height:2px;background:var(--navy);border-radius:2px;position:relative
  }
  .nav-toggle-btn span::before{position:absolute;top:-7px}
  .nav-toggle-btn span::after{position:absolute;top:7px}
  .nav-toggle:checked ~ .nav-toggle-btn span{background:transparent}
  .nav-toggle:checked ~ .nav-toggle-btn span::before{top:0;transform:rotate(45deg)}
  .nav-toggle:checked ~ .nav-toggle-btn span::after{top:0;transform:rotate(-45deg)}
  .nav-toggle:checked ~ .site-nav{transform:translateY(0)}
}