@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Noto Sans JP', sans-serif; color: #222; font-size: 15px; line-height: 1.8; background: #fff; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

:root {
  --green: #3AC576;
  --green-dark: #2a9e5e;
  --navy: #1A2A4A;
  --navy-light: #243558;
  --gray-bg: #f4f6f9;
}

.container { max-width: 780px; margin: 0 auto; padding: 0 20px; }
.section { padding: 56px 0; }
.section-title { text-align: center; font-size: 1.35rem; font-weight: 700; margin-bottom: 32px; }
.accent { color: var(--green); }

.btn-green {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--green); color: #fff; font-weight: 700; font-size: 1rem;
  padding: 18px 32px; border-radius: 6px; border: none; cursor: pointer;
  transition: background 0.2s; width: 100%; max-width: 420px;
}
.btn-green:hover { background: var(--green-dark); }

/* Header */
.header { position: fixed; top: 0; left: 0; width: 100%; z-index: 100; background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 60px; max-width: 780px; margin: 0 auto; padding: 0 20px; }
.logo { display: flex; align-items: center; gap: 8px; font-size: 1.05rem; font-weight: 700; color: var(--navy); }
.logo-icon { color: var(--green); font-size: 1.1rem; font-weight: 900; font-family: monospace; }
.header-btn { background: var(--green); color: #fff; font-size: 0.78rem; font-weight: 700; padding: 10px 16px; border-radius: 20px; transition: background 0.2s; white-space: nowrap; }
.header-btn:hover { background: var(--green-dark); }

/* Hero */
.hero { margin-top: 60px; background: var(--navy); padding: 48px 20px 0; min-height: 480px; position: relative; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.35; }
.hero-content { position: relative; z-index: 1; max-width: 780px; margin: 0 auto; }
.hero-sub { font-size: 0.8rem; color: #aac; margin-bottom: 8px; }
.hero-title { font-size: 2.2rem; font-weight: 900; color: #fff; line-height: 1.3; margin-bottom: 8px; }
.hero-lead { font-size: 0.875rem; color: #99b; margin-bottom: 28px; }
.hero-stats { display: flex; gap: 12px; margin-bottom: 32px; flex-wrap: wrap; }
.stat-box { background: rgba(255,255,255,0.95); border-radius: 6px; padding: 12px 16px; text-align: center; min-width: 80px; }
.stat-box .num { font-size: 1.6rem; font-weight: 900; color: var(--navy); line-height: 1; }
.stat-box .unit { font-size: 0.85rem; color: var(--navy); font-weight: 700; }
.stat-box .label { font-size: 0.65rem; color: #666; margin-top: 2px; display: block; }
.hero-cta { padding-bottom: 48px; }
.hero-cta .btn-green { max-width: 100%; font-size: 1.05rem; border-radius: 6px; box-shadow: 0 4px 16px rgba(58,197,118,0.4); }

/* Pain */
.pain { background: var(--gray-bg); }
.pain-title { text-align: center; font-size: 1.1rem; font-weight: 700; margin-bottom: 24px; color: var(--navy); }
.pain-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 24px; }
.pain-item { display: flex; align-items: flex-start; gap: 8px; font-size: 0.875rem; }
.pain-check { color: var(--green); font-weight: 700; flex-shrink: 0; margin-top: 3px; }

/* Reasons */
.reasons { background: #fff; }
.reason-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.reason-card { text-align: center; padding: 24px 16px; border: 1px solid #e0e8f0; border-radius: 8px; }
.reason-icon { font-size: 2rem; margin-bottom: 12px; }
.reason-card h3 { font-size: 0.9rem; font-weight: 700; margin-bottom: 8px; color: var(--navy); }
.reason-card p { font-size: 0.8rem; color: #555; line-height: 1.7; }

/* Steps */
.steps { background: var(--gray-bg); }
.step-list { display: flex; align-items: flex-start; gap: 0; overflow-x: auto; padding-bottom: 8px; }
.step-item { flex: 1; min-width: 140px; text-align: center; position: relative; }
.step-item:not(:last-child)::after { content: '→'; position: absolute; right: -10px; top: 20px; font-size: 1.2rem; color: var(--green); }
.step-num { font-size: 0.7rem; font-weight: 700; color: var(--green); letter-spacing: 0.1em; margin-bottom: 4px; }
.step-item h3 { font-size: 0.875rem; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.step-item p { font-size: 0.75rem; color: #666; line-height: 1.6; }

/* Testimonials */
.testimonials { background: #fff; }
.testimonial-cards { display: flex; flex-direction: column; gap: 16px; }
.testimonial-card { border: 1px solid #e0e8f0; border-radius: 8px; padding: 18px; }
.testimonial-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.testimonial-avatar { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; background: #ddd; flex-shrink: 0; }
.testimonial-meta h4 { font-size: 0.85rem; font-weight: 700; color: var(--navy); margin-bottom: 2px; }
.testimonial-meta span { font-size: 0.75rem; color: #888; }
.testimonial-card p { font-size: 0.85rem; color: #444; line-height: 1.8; }

/* Pricing */
.pricing { background: #fff; }
.pricing-box { border: 2px solid #e0e8f0; border-radius: 12px; padding: 28px 24px; }
.pricing-row { display: flex; align-items: baseline; gap: 32px; flex-wrap: wrap; }
.price-item .label { font-size: 0.78rem; color: #888; margin-bottom: 4px; }
.price-main { font-size: 2rem; font-weight: 900; color: var(--navy); }
.price-unit { font-size: 0.9rem; font-weight: 700; }
.price-tax { font-size: 0.75rem; color: #888; }
.pricing-note { font-size: 0.72rem; color: #aaa; margin-top: 8px; }

/* CTA Section */
.cta-section { background: var(--navy); padding: 48px 20px; text-align: center; }
.cta-title { font-size: 0.95rem; color: #aac; margin-bottom: 20px; font-weight: 500; }
.cta-section .btn-green { margin: 0 auto; font-size: 1.1rem; padding: 20px 32px; border-radius: 6px; box-shadow: 0 4px 16px rgba(58,197,118,0.4); }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; }
.faq-list { border-top: 1px solid #e0e0e0; }
.faq-item { border-bottom: 1px solid #e0e0e0; }
.faq-question { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 16px 4px; background: none; border: none; cursor: pointer; text-align: left; font-family: inherit; font-size: 0.875rem; font-weight: 500; color: #222; gap: 10px; }
.faq-question .q-label { color: var(--green); font-weight: 700; flex-shrink: 0; }
.faq-question .q-text { flex: 1; }
.faq-icon { width: 24px; height: 24px; border: 1px solid #ccc; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1rem; color: #888; flex-shrink: 0; transition: transform 0.3s, background 0.3s, color 0.3s; }
.faq-item.is-open .faq-icon { transform: rotate(45deg); background: var(--green); color: #fff; border-color: var(--green); }
.faq-answer { display: none; padding: 0 4px 16px; font-size: 0.85rem; color: #555; line-height: 1.9; }

/* Footer */
.footer { background: var(--navy); padding: 24px 20px; text-align: center; }
.footer p { font-size: 0.75rem; color: #556; }

/* Fade */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.is-visible { opacity: 1; transform: translateY(0); }

/* Fixed CTA */
.fixed-cta { position: fixed; bottom: 0; left: 0; width: 100%; z-index: 99; background: var(--green); padding: 12px 20px; display: none; }
.fixed-cta a { display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 0.95rem; gap: 8px; }

@media (min-width: 640px) {
  .testimonial-cards { display: grid; grid-template-columns: repeat(3, 1fr); }
  .hero-title { font-size: 2.6rem; }
}
@media (max-width: 600px) {
  .pain-list { grid-template-columns: 1fr; }
  .reason-cards { grid-template-columns: 1fr; }
  .step-list { flex-direction: column; gap: 16px; }
  .step-item:not(:last-child)::after { content: '↓'; right: auto; left: 50%; top: auto; bottom: -20px; }
  .faq-grid { grid-template-columns: 1fr; }
  .pricing-row { flex-direction: column; gap: 12px; }
}