:root{
  --navy:#123763;
  --blue:#256fe6;
  --light:#f3f8ff;
  --pale:#eaf3ff;
  --green:#23b85d;
  --orange:#ff9b55;
  --text:#24364b;
  --muted:#63758c;
  --line:#d8e6f7;
  --white:#fff;
  --shadow:0 18px 50px rgba(23,61,103,.11);
  --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Noto Sans JP","Hiragino Sans","Yu Gothic",Meiryo,sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#fbfdff 0%,#f4f9ff 100%);
  line-height:1.75;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.site-header{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;padding:16px clamp(20px,5vw,72px);
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(216,230,247,.7);
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--navy);line-height:1.25}
.brand-icon{
  display:grid;place-items:center;width:42px;height:42px;border-radius:50%;
  background:var(--pale);color:var(--blue);border:2px solid #bdd8ff;font-size:14px
}
.nav{display:flex;gap:28px;font-size:14px;font-weight:700;color:#2f4056}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 18px;border-radius:999px;background:var(--green);color:#fff;font-weight:800;font-size:14px;
  box-shadow:0 10px 26px rgba(35,184,93,.24)
}
.section{padding:92px clamp(20px,6vw,88px)}
.hero{
  min-height:760px;display:grid;grid-template-columns:1fr .95fr;gap:46px;align-items:center;
  background:
    radial-gradient(circle at 10% 20%,#e6f2ff 0 28%,transparent 29%),
    radial-gradient(circle at 86% 5%,#edf7ff 0 30%,transparent 31%);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin:0 0 18px;
  color:var(--blue);font-weight:800;letter-spacing:.04em;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:9px;background:var(--blue)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(44px,7vw,86px);line-height:1.13;color:var(--navy);letter-spacing:-.04em;margin-bottom:26px}
h2{font-size:clamp(30px,4vw,48px);line-height:1.35;color:var(--navy);letter-spacing:-.03em;margin-bottom:18px}
h3{font-size:22px;color:var(--navy);line-height:1.45;margin-bottom:12px}
.lead{font-size:20px;color:#344b64;max-width:620px}
.cta-row{display:flex;gap:16px;flex-wrap:wrap;margin:34px 0 22px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;min-height:58px;
  padding:15px 28px;border-radius:999px;font-weight:900;transition:.2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 14px 26px rgba(35,184,93,.24)}
.btn-secondary{background:#fff;color:var(--navy);border:1px solid var(--line)}
.trust-list{display:flex;flex-wrap:wrap;gap:12px;margin:0;padding:0;list-style:none}
.trust-list li{padding:10px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:800;color:var(--navy)}
.trust-list li::before{content:"✓";color:var(--blue);margin-right:8px}
.note{font-size:13px;color:var(--muted);margin-top:12px}
.hero-image img,.wide-visual,.feature-grid article img,.pricing-layout>img,.voice-visual img,.final-cta img{
  border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid #e1ecfb;
}
.center{text-align:center;max-width:900px;margin:0 auto 44px}
.center .eyebrow{justify-content:center}
.problem{background:#f3f9ff}
.problem-grid,.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1180px;margin:0 auto}
.problem-card,.feature-grid article,.price-card,.voice-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);
}
.problem-card{padding:30px;min-height:230px}
.problem-card span{
  display:grid;place-items:center;width:50px;height:50px;border-radius:50%;
  background:var(--pale);color:var(--blue);font-weight:900;margin-bottom:20px
}
.wide-visual{margin:36px auto 0;max-width:960px}
.solution{
  margin:70px clamp(20px,6vw,88px);border-radius:36px;background:#edf6ff;
  display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center
}
.solution-copy p:last-child{font-size:18px}
.step-boxes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step-boxes div{padding:28px 18px;background:#fff;border-radius:24px;border:1px solid var(--line);text-align:center}
.step-boxes span{display:block;color:var(--blue);font-weight:900;font-size:13px}
.step-boxes strong{display:block;margin-top:8px;color:var(--navy)}
.feature-grid article{overflow:hidden}
.feature-grid article img{border-radius:0;box-shadow:none;border:0;aspect-ratio:4/2.7;object-fit:cover}
.feature-grid article h3,.feature-grid article p{padding-inline:24px}
.feature-grid article p{padding-bottom:22px;color:var(--muted)}
.curriculum{background:#f7fbff}
.curriculum-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:14px;max-width:1220px;margin:auto}
.curriculum-grid div{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px 12px;text-align:center;
  font-weight:800;color:var(--navy);box-shadow:0 12px 26px rgba(23,61,103,.07)
}
.curriculum-grid div::before{content:"◎";display:block;color:var(--blue);font-size:24px;margin-bottom:8px}
.voice{display:grid;grid-template-columns:.85fr 1fr;gap:28px;align-items:center}
.voice-card{padding:46px}
.pricing{background:#f3f9ff}
.pricing-layout{display:grid;grid-template-columns:1fr .8fr;gap:32px;align-items:center;max-width:1220px;margin:auto}
.plans{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.price-card{padding:32px;position:relative}
.price{font-size:46px;line-height:1;color:var(--blue);font-weight:900;margin:8px 0 16px}
.price span{font-size:14px;color:var(--muted);margin-left:4px}
.price-card ul{padding-left:0;list-style:none;color:var(--muted)}
.price-card li{margin:8px 0}
.price-card li::before{content:"✓";color:var(--green);font-weight:900;margin-right:8px}
.recommended{border:2px solid var(--blue)}
.ribbon{
  position:absolute;top:-17px;left:50%;transform:translateX(-50%);
  background:var(--blue);color:#fff;border-radius:999px;padding:5px 18px;font-weight:900;font-size:13px
}
.flow-list{
  display:grid;grid-template-columns:repeat(5,1fr);gap:18px;max-width:1220px;margin:auto;padding:0;list-style:none;
}
.flow-list li{
  background:#fff;border:1px solid var(--line);border-radius:24px;padding:26px 18px;text-align:center;font-weight:800;color:var(--navy);
  box-shadow:0 12px 28px rgba(23,61,103,.07)
}
.flow-list span{display:block;margin:0 auto 12px;width:42px;height:42px;border-radius:50%;background:var(--pale);color:var(--blue);line-height:42px}
.faq{background:#f7fbff}
.faq-list{max-width:1000px;margin:auto}
.faq-item{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:18px;
  padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:20px;margin-top:12px;
  color:var(--navy);font-size:16px;font-weight:900;text-align:left;cursor:pointer
}
.faq-answer{display:none;padding:14px 26px 24px;color:var(--muted)}
.faq-answer.open{display:block}
.final-cta{
  margin:0;display:grid;grid-template-columns:1fr .8fr;gap:30px;align-items:center;
  padding:76px clamp(20px,7vw,100px);background:linear-gradient(135deg,#1764d8,#67b6ff);color:#fff
}
.final-cta h2{color:#fff}
.final-cta p{font-size:18px;max-width:620px}
.footer{display:flex;justify-content:space-between;gap:16px;padding:28px clamp(20px,6vw,88px);background:#102842;color:#dce9fb}
.footer p{margin:0;font-weight:800}
.sp-only{display:none}
@media (max-width: 980px){
  .nav{display:none}
  .hero,.solution,.voice,.pricing-layout,.final-cta{grid-template-columns:1fr}
  .hero{padding-top:54px}
  .problem-grid,.feature-grid,.plans{grid-template-columns:1fr}
  .curriculum-grid{grid-template-columns:repeat(2,1fr)}
  .flow-list{grid-template-columns:1fr}
  .pricing-layout>img{order:-1}
}
@media (max-width: 640px){
  .site-header{padding:12px 16px}
  .header-cta{display:none}
  .section{padding:64px 18px}
  .hero{min-height:auto}
  h1{font-size:44px}
  .cta-row .btn{width:100%}
  .trust-list li{font-size:13px}
  .solution{margin:40px 18px;padding:42px 20px}
  .step-boxes{grid-template-columns:1fr}
  .curriculum-grid{grid-template-columns:1fr}
  .final-cta{padding:54px 18px}
  .footer{display:block;text-align:center}
  .sp-only{display:block}
}