:root {
  --bg: #f8f7f2;
  --surface: #ffffff;
  --surface-2: #eef3ec;
  --text: #243126;
  --muted: #66756a;
  --line: #d8e0d7;
  --accent: #6f8e72;
  --accent-deep: #557058;
  --accent-soft: #edf4ee;
  --shadow: 0 10px 30px rgba(36, 49, 38, 0.08);
  --radius: 20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans JP",system-ui,sans-serif;color:var(--text);background:var(--bg);line-height:1.75}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1120px,calc(100% - 32px));margin:0 auto}
.narrow{width:min(820px,calc(100% - 32px))}
.site-header{position:sticky;top:0;z-index:20;backdrop-filter:blur(10px);background:rgba(248,247,242,.88);border-bottom:1px solid rgba(216,224,215,.8)}
.nav{display:flex;justify-content:space-between;align-items:center;padding:14px 0;gap:20px}.brand{font-weight:800;letter-spacing:.08em}nav{display:flex;flex-wrap:wrap;gap:18px;align-items:center;font-size:14px}.nav-line{padding:10px 14px;background:var(--surface);border-radius:999px;border:1px solid var(--line)}
.hero{position:relative;padding:78px 0 56px;background:linear-gradient(180deg,#f4f2ea 0%,#f8f7f2 100%);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:url('assets/hero-bg.svg') center/cover no-repeat;opacity:.95}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(248,247,242,.92) 0%,rgba(248,247,242,.72) 52%,rgba(248,247,242,.38) 100%)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center}
.eyebrow{color:var(--accent-deep);font-weight:700;letter-spacing:.08em;font-size:13px;margin:0 0 10px}
h1,h2,h3{line-height:1.35;margin:0 0 12px}h1{font-size:clamp(32px,5vw,52px);letter-spacing:-.03em}h2{font-size:clamp(28px,4vw,40px);letter-spacing:-.02em}h3{font-size:22px}.lead{font-size:17px;color:var(--muted);max-width:780px}.lead.small{font-size:16px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:999px;font-weight:700;border:1px solid var(--line)}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-secondary{background:var(--surface)}
.hero-card,.card,.monitor-box,.flow-item,details,.notice-box,.image-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-card{padding:22px;display:grid;gap:14px;background:rgba(255,255,255,.88)}.point{padding:14px;border-radius:16px;background:var(--accent-soft)}.point span{display:block;font-size:12px;color:var(--muted);letter-spacing:.06em;margin-bottom:4px}.point strong{font-size:18px}
.section{padding:84px 0}.section.muted{background:#f3f5ef}.section.accent{background:linear-gradient(180deg,#edf4ee 0%,#f8f7f2 100%)}.section-head{margin-bottom:28px}.section-head.left{margin-bottom:0}.section-head p{color:var(--muted);max-width:760px}
.problem-grid,.cards.three,.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.cards.two,.image-grid,.studio-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.problem{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;font-weight:600}.section-note{margin-top:22px;color:var(--muted)}.card{padding:24px;position:relative}.card p,.card li,.small-note,.plan-note,.sub,.notice-box p{color:var(--muted)}.card ul,.check-list{margin:14px 0 0;padding-left:20px}.tag{display:inline-flex;padding:6px 10px;border-radius:999px;background:#ddeadd;color:var(--accent-deep);font-size:12px;font-weight:700;margin-bottom:10px}.featured{border-color:#b9cfbb;background:linear-gradient(180deg,#ffffff 0%,#f7fbf7 100%)}
.image-card{padding:10px;overflow:hidden}.image-card img{border-radius:16px;width:100%;height:auto}.image-grid,.studio-grid{align-items:center}
.price{font-size:34px;font-weight:800;margin:0;color:var(--accent-deep)}.price span{font-size:15px;font-weight:600;color:var(--muted)}.monitor-box{margin-top:26px;padding:24px;text-align:center;background:#fffdf8}.monitor-price{font-size:28px;font-weight:800;color:var(--accent-deep)}
.flow-item{padding:22px}.flow-item span{display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;border-radius:999px;background:var(--accent-soft);font-weight:800;color:var(--accent-deep);margin-bottom:12px}.notice-box{margin-top:18px;padding:22px;background:#fffdf8}
.faq-list{display:grid;gap:12px}details{padding:18px 20px}summary{cursor:pointer;font-weight:700}details p{margin:12px 0 0;color:var(--muted)}
.cta{background:linear-gradient(180deg,#f4f7f1 0%,#eef3ec 100%)}.center{text-align:center}.center-actions{justify-content:center}.cta-points{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:22px 0}.cta-points span{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:14px}.business-info{margin-top:24px;color:var(--muted)}.site-footer{padding:28px 0 46px}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:14px}.footer-links{display:flex;gap:16px;flex-wrap:wrap}

@media (max-width: 920px){
  .hero-grid,.cards.two,.cards.three,.problem-grid,.flow-grid,.image-grid,.studio-grid{grid-template-columns:1fr}
  .hero{padding-top:48px}
  nav{display:none}
  .section{padding:64px 0}
  .hero-overlay{background:linear-gradient(180deg,rgba(248,247,242,.9) 0%,rgba(248,247,242,.78) 100%)}
}