:root {
  --primary: #0F172A;
  --primary-light: #1E293B;
  --accent: #2563EB;
  --accent-light: #3B82F6;
  --bg-light: #F8FAFC;
  --text-main: #334155;
  --text-muted: #64748B;
  --white: #FFFFFF;
  --border: #E2E8F0;
  --radius: 6px;
}
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: 'Noto Sans JP', sans-serif; color: var(--text-main); background: var(--white); line-height: 1.8; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 5%; }

/* Header */
header { background: rgba(255,255,255,0.95); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 1000; border-bottom: 1px solid var(--border); }
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo { font-size: 1.5rem; font-weight: 700; color: var(--primary); display: flex; align-items: center; gap: 12px; }
.logo img { height: 32px; }
.nav-links { display: flex; gap: 30px; font-weight: 500; font-size: 0.95rem; }
.nav-links a:hover { color: var(--accent); }
.header-cta { background: var(--accent); color: var(--white) !important; padding: 10px 24px; border-radius: var(--radius); }

/* Hero */
.hero { background: var(--bg-light); padding: 100px 0; }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero h1 { font-size: 2.8rem; line-height: 1.3; color: var(--primary); margin-bottom: 24px; font-weight: 700; }
.hero p { font-size: 1.15rem; color: var(--text-muted); margin-bottom: 40px; }
.btn-primary { display: inline-block; background: var(--primary); color: var(--white); padding: 16px 36px; border-radius: var(--radius); font-weight: 600; font-size: 1.05rem; }
.hero-img { width: 100%; border-radius: var(--radius); box-shadow: 0 20px 40px rgba(0,0,0,0.08); }

/* Common Sections */
.section { padding: 100px 0; }
.section-bg { background: var(--bg-light); }
.section-title { text-align: center; font-size: 2.2rem; color: var(--primary); margin-bottom: 60px; font-weight: 700; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
.card { background: var(--white); border: 1px solid var(--border); padding: 40px; border-radius: var(--radius); transition: transform 0.3s; }
.card:hover { transform: translateY(-5px); box-shadow: 0 15px 30px rgba(0,0,0,0.05); }

/* Text Blocks */
.content-area { max-width: 800px; margin: 0 auto; }
.content-area h2 { font-size: 1.8rem; color: var(--primary); margin: 50px 0 20px; }
.content-area p { margin-bottom: 20px; font-size: 1.05rem; }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--border); padding-bottom: 24px; margin-bottom: 24px; }
.faq-item h3 { font-size: 1.2rem; margin-bottom: 12px; color: var(--primary); }

/* Footer */
footer { background: var(--primary); color: #fff; padding: 80px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 60px; }
.footer-title { margin-bottom: 20px; font-weight: 600; }
.footer-links li { list-style: none; margin-bottom: 12px; }
.footer-links a { color: #CBD5E1; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 30px; display: flex; justify-content: space-between; font-size: 0.9rem; color: #94A3B8; }
.compliance { font-size: 12px; text-align: center; margin-top: 20px; color: #64748B; }

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}