:root{
  --bg:#fffdf7;
  --surface:#ffffff;
  --surface-soft:#fff8df;
  --line:#eee5c9;
  --ink:#171717;
  --text:#4b5563;
  --muted:#8a8f98;
  --accent:#f4c400;
  --accent-deep:#d89d00;
  --shadow:0 22px 60px rgba(23,23,23,.08);
  --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans JP",system-ui,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top right, rgba(244,196,0,.12), transparent 30%),
    linear-gradient(180deg, #fffefb 0%, #fffdf7 100%);
  line-height:1.9;
  letter-spacing:.01em;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit}
.container{width:min(1180px,calc(100% - 32px));margin:0 auto}
.site-header{
  position:sticky;
  top:0;
  z-index:30;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(23,23,23,.06);
}
.header-inner{
  min-height:82px;
  display:grid;
  grid-template-columns:auto 1fr auto auto;
  align-items:center;
  gap:22px;
}
.logo{
  display:flex;
  align-items:center;
}
.logo img{height:52px;width:auto;object-fit:contain}
.logo-fallback{
  min-width:74px;
  min-height:48px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:24px;
  letter-spacing:.18em;
  color:var(--ink);
  font-weight:800;
}
.pc-nav{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:24px;
}
.pc-nav a{
  font-size:14px;
  color:#4d5560;
  font-weight:700;
}
.header-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 18px;
  border-radius:999px;
  background:#111827;
  color:#fff;
  font-size:14px;
  font-weight:800;
}
.menu-toggle{
  display:none;
  width:46px;
  height:46px;
  border:1px solid rgba(23,23,23,.08);
  border-radius:14px;
  background:#fff;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.menu-toggle span{width:20px;height:2px;background:#111827;border-radius:99px}
.mobile-nav{
  display:none;
  border-top:1px solid rgba(23,23,23,.06);
  background:#fff;
}
.mobile-nav a{
  display:block;
  padding:14px 16px;
  border-bottom:1px solid rgba(23,23,23,.05);
  font-size:14px;
  font-weight:700;
}
.hero{padding:44px 0 56px}
.hero-visual{
  position:relative;
  min-height:640px;
  border-radius:34px;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:56px 34px;
  background:
    linear-gradient(180deg, rgba(17,24,39,.14), rgba(17,24,39,.6)),
    linear-gradient(90deg, rgba(17,24,39,.62), rgba(17,24,39,.18) 46%, rgba(17,24,39,.62)),
    url('../images/hero-flyer.png') center center / cover no-repeat;
  box-shadow:var(--shadow);
  isolation:isolate;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:radial-gradient(circle at center, rgba(255,255,255,.02), rgba(255,255,255,0) 38%);
  z-index:0;
}
.hero-copy{
  position:relative;
  z-index:1;
  width:min(760px, 100%);
  text-align:center;
}
.hero-label,.section-label{
  margin:0 0 12px;
  font-size:12px;
  font-weight:800;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:#ffd95b;
}
.hero h1,
.section-head h2,
.price-copy h2,
.contact-copy h2{
  margin:0;
  color:#ffffff;
  font-size:clamp(36px,5vw,58px);
  line-height:1.24;
  letter-spacing:-.05em;
  font-weight:800;
  text-shadow:0 10px 24px rgba(17,24,39,.24);
}
.section-head h2,
.price-copy h2,
.contact-copy h2{font-size:clamp(28px,4vw,42px);color:var(--ink);text-shadow:none}
.hero-lead{
  margin:22px auto 0;
  max-width:640px;
  font-size:16px;
  font-weight:600;
  color:rgba(255,255,255,.94);
  line-height:2;
  text-shadow:0 6px 20px rgba(17,24,39,.22);
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
  margin:28px 0 0;
}
.hero-points div{
  padding:10px 14px;
  border-radius:999px;
  background:rgba(255,248,223,.95);
  border:1px solid rgba(241,225,168,.95);
  color:#5f4b00;
  font-size:13px;
  font-weight:800;
  backdrop-filter:blur(6px);
}
.hero-actions,
.contact-actions{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
  margin-top:28px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:52px;
  padding:0 22px;
  border-radius:999px;
  font-size:14px;
  font-weight:800;
}
.btn-primary{background:var(--accent);color:#171717;box-shadow:0 16px 34px rgba(244,196,0,.28)}
.btn-secondary{background:rgba(255,255,255,.92);border:1px solid rgba(255,255,255,.6);color:#171717}
.btn-dark{background:#111827;color:#fff}
.intro-section,
.service-section,
.strength-section,
.price-section,
.flow-section,
.faq-section,
.contact-section{padding:54px 0}
.section-head{margin-bottom:28px}
.section-head.center{text-align:center}
.section-head.center .section-label{justify-content:center}
.problem-grid,
.strength-grid,
.flow-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.problem-grid article,
.strength-grid article,
.flow-grid article,
.service-box,
.detail-box,
.faq-list details{
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);
  border-radius:24px;
  box-shadow:0 18px 42px rgba(23,23,23,.05);
}
.problem-grid article,
.strength-grid article,
.flow-grid article{padding:22px}
.problem-grid h3,
.strength-grid h3,
.flow-grid h3,
.service-box h3,
.detail-box h3{
  margin:0 0 10px;
  color:var(--ink);
  font-size:20px;
  line-height:1.45;
  letter-spacing:-.03em;
}
.problem-grid p,
.strength-grid p,
.flow-grid p,
.service-copy p,
.service-box li,
.price-copy p,
.detail-box p,
.contact-copy p,
.faq-list p{margin:0;font-size:15px;font-weight:600;color:#5b6470}
.service-layout,
.faq-layout,
.contact-card{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(320px,.9fr);
  gap:24px;
  align-items:start;
}
.service-box{padding:24px}
.service-box ul{margin:0;padding-left:1.25em;display:grid;gap:10px}
.strength-grid article span,
.flow-grid article span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:50%;
  margin-bottom:14px;
  background:#fff4bf;
  color:#7c5d00;
  font-size:15px;
  font-weight:800;
}
.price-card{
  padding:28px;
  border-radius:30px;
  background:linear-gradient(135deg,#fff,#fff8de 78%);
  border:1px solid #f0e3b5;
  box-shadow:var(--shadow);
}
.price-details{
  margin-top:24px;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
}
.detail-box{padding:20px}
.faq-list{display:grid;gap:14px}
.faq-list details{padding:18px 20px}
.faq-list summary{
  cursor:pointer;
  list-style:none;
  color:var(--ink);
  font-size:18px;
  font-weight:800;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list p{margin-top:10px}
.contact-card{
  padding:28px;
  border-radius:30px;
  background:#111827;
  color:#fff;
  align-items:center;
}
.contact-card .section-label{color:#f6d969}
.contact-copy h2{color:#fff}
.contact-copy p{color:#d9dee7}
.mail-link{font-size:15px;font-weight:700;color:#fff;text-decoration:underline;text-underline-offset:3px}
.site-footer{padding:28px 0;border-top:1px solid rgba(23,23,23,.06)}
.footer-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.footer-inner p{margin:0;font-size:13px;font-weight:700;color:#7a828d}
@media (max-width: 980px){
  .header-inner{grid-template-columns:auto 1fr auto;}
  .pc-nav{display:none}
  .menu-toggle{display:flex}
  .mobile-nav.open{display:block}
  .hero-inner,
  .service-layout,
  .faq-layout,
  .contact-card{grid-template-columns:1fr}
  .price-details{grid-template-columns:1fr}
}
@media (max-width: 720px){
  .container{width:min(100% - 24px, 1180px)}
  .header-inner{min-height:74px;gap:14px}
  .logo img{height:44px}
  .header-cta{display:none}
  .hero{padding:24px 0 34px}
  .hero-visual{
    min-height:560px;
    padding:34px 18px;
    border-radius:24px;
    background:
      linear-gradient(180deg, rgba(17,24,39,.18), rgba(17,24,39,.68)),
      linear-gradient(90deg, rgba(17,24,39,.74), rgba(17,24,39,.28) 50%, rgba(17,24,39,.74)),
      url('../images/hero-flyer.png') 62% center / cover no-repeat;
  }
  .hero h1,
  .section-head h2,
  .price-copy h2,
  .contact-copy h2{line-height:1.32}
  .hero-lead,
  .problem-grid p,
  .strength-grid p,
  .flow-grid p,
  .service-copy p,
  .service-box li,
  .price-copy p,
  .detail-box p,
  .contact-copy p,
  .faq-list p{font-size:14px;line-height:1.95}
  .problem-grid,
  .strength-grid,
  .flow-grid{grid-template-columns:1fr}
  .intro-section,
  .service-section,
  .strength-section,
  .price-section,
  .flow-section,
  .faq-section,
  .contact-section{padding:40px 0}
  .problem-grid article,
  .strength-grid article,
  .flow-grid article,
  .service-box,
  .detail-box,
  .faq-list details,
  .contact-card,
  .price-card{padding:20px}
  .hero-actions,
  .contact-actions{flex-direction:column}
  .btn{width:100%}
  .footer-inner{flex-direction:column;align-items:flex-start}
}