/* === Reset & Base === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Noto Sans JP', sans-serif; color: #1a1a2e; line-height: 1.8; background: #fff; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.sp-only { display: none; }
.text-white { color: #fff !important; }

/* === Header === */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.97); backdrop-filter: blur(12px);
  border-bottom: 1px solid #eef2f6; padding: 12px 0;
}
.header-inner { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 20px; font-weight: 900; color: #1a1a2e; display: flex; align-items: center; gap: 4px; }
.logo-icon {
  background: #111827; color: #fff; padding: 3px 7px; border-radius: 4px;
  font-size: 13px; font-weight: 800; letter-spacing: 0.05em;
}
.header-nav { display: flex; gap: 28px; }
.header-nav a { font-size: 14px; font-weight: 500; color: #64748b; transition: color 0.2s; }
.header-nav a:hover { color: #2563eb; }
.header-cta {
  background: #111827; color: #fff; padding: 10px 22px; border-radius: 6px;
  font-size: 13px; font-weight: 600; transition: all 0.2s; letter-spacing: 0.02em;
}
.header-cta:hover { background: #1f2937; }

/* === Buttons === */
.btn {
  display: inline-flex; flex-direction: column; align-items: center;
  padding: 14px 32px; border-radius: 10px; font-size: 16px; font-weight: 700;
  transition: all 0.2s; cursor: pointer; text-align: center; border: none;
}
.btn small { font-size: 12px; font-weight: 400; opacity: 0.8; margin-top: 2px; }
.btn-primary { background: #1d4ed8; color: #fff; }
.btn-primary:hover { background: #1e40af; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(30,64,175,0.25); }
.btn-secondary { background: #fff; color: #2563eb; border: 2px solid #2563eb; }
.btn-secondary:hover { background: #eff6ff; }
.btn-large { padding: 18px 40px; font-size: 17px; }
.btn-full { width: 100%; justify-content: center; }
.btn-line { background: #06c755; color: #fff; }
.btn-line:hover { background: #05b04c; }

/* === Hero === */
.hero { padding: 130px 0 80px; background: #fff; }
.hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 72px; align-items: center; }
.hero-badge {
  display: inline-block; background: #f0f7ff; color: #1d4ed8;
  padding: 7px 18px; border-radius: 6px; font-size: 12px; font-weight: 600;
  margin-bottom: 24px; letter-spacing: 0.06em;
}
.hero-text h1 {
  font-size: 44px; font-weight: 900; line-height: 1.4; margin-bottom: 24px;
  color: #111827; letter-spacing: -0.02em;
}
.hero-subtitle { font-size: 16px; color: #6b7280; margin-bottom: 36px; line-height: 2; }
.hero-actions { margin-bottom: 40px; }
.hero-trust { display: flex; align-items: center; gap: 20px; }
.trust-item { font-size: 14px; color: #6b7280; }
.trust-item strong { color: #1d4ed8; font-size: 17px; }
.trust-divider { width: 1px; height: 20px; background: #d1d5db; }
.hero-image { position: relative; }
.hero-image img {
  border-radius: 12px; width: 100%; height: 440px; object-fit: cover;
  box-shadow: 0 24px 48px rgba(0,0,0,0.08);
}

/* === Social Proof === */
.social-proof { padding: 52px 0; background: #111827; }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; text-align: center; }
.proof-number { font-size: 44px; font-weight: 900; color: #fff; display: block; line-height: 1.2; letter-spacing: -0.02em; }
.proof-number small { font-size: 18px; font-weight: 500; }
.proof-label { font-size: 13px; color: #9ca3af; margin-top: 4px; }

/* === Sections === */
.section { padding: 96px 0; }
.section-white { background: #fff; }
.section-gray { background: #f8fafc; }
.section-blue { background: linear-gradient(135deg, #1e40af, #2563eb); }
.section-cta { background: #0f172a; color: #fff; }

.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.2em;
  color: #6b7280; margin-bottom: 14px; text-transform: uppercase;
  border-bottom: 2px solid #2563eb; padding-bottom: 4px;
}
.tag-white { color: #d1d5db; border-color: #60a5fa; }
.section-header h2 { font-size: 30px; font-weight: 800; line-height: 1.5; color: #111827; letter-spacing: -0.01em; }
.section-desc { font-size: 15px; color: #6b7280; margin-top: 12px; line-height: 1.8; }

/* === Problem === */
.problem-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 20px; }
.problem-item {
  display: flex; gap: 20px; align-items: flex-start;
  background: #fff; padding: 28px 32px; border-radius: 16px;
  border: 1px solid #e2e8f0; transition: all 0.2s;
}
.problem-item:hover { border-color: #2563eb; box-shadow: 0 4px 20px rgba(37,99,235,0.08); }
.problem-icon-wrap {
  flex-shrink: 0; width: 48px; height: 48px; background: #eff6ff;
  border-radius: 12px; display: flex; align-items: center; justify-content: center;
}
.problem-icon-wrap span { font-size: 16px; font-weight: 900; color: #2563eb; }
.problem-content h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.problem-content p { font-size: 14px; color: #64748b; }

/* === Urgency === */
.urgency { padding: 80px 0; background: #fff; }
.urgency-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.urgency-inner img { border-radius: 20px; width: 100%; height: 380px; object-fit: cover; }
.urgency-text h2 { font-size: 28px; font-weight: 900; margin-bottom: 32px; }
.timeline { display: flex; flex-direction: column; gap: 20px; margin-bottom: 24px; }
.timeline-item { display: flex; gap: 16px; align-items: flex-start; }
.timeline-year {
  flex-shrink: 0; background: #fee2e2; color: #dc2626; padding: 4px 12px;
  border-radius: 6px; font-size: 13px; font-weight: 700; min-width: 60px; text-align: center;
}
.timeline-item p { font-size: 15px; color: #475569; }
.urgency-cta { font-size: 18px; font-weight: 700; color: #2563eb; }

/* === Solution === */
.solution-image { margin-bottom: 48px; border-radius: 8px; overflow: hidden; max-height: 320px; }
.solution-image img { width: 100%; height: 320px; object-fit: cover; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
  padding: 32px 24px; border-radius: 8px; background: #fff;
  border-left: 3px solid #2563eb;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.feature-num { font-size: 28px; font-weight: 800; color: #1d4ed8; opacity: 0.2; margin-bottom: 8px; font-family: 'Georgia', serif; }
.feature-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; color: #111827; }
.feature-card p { font-size: 14px; color: #6b7280; line-height: 1.8; }

/* === Flow === */
.flow-grid { display: flex; justify-content: center; align-items: flex-start; gap: 0; }
.flow-step {
  text-align: center; flex: 1; max-width: 220px; padding: 32px 16px;
  background: #fff; border-radius: 16px; border: 1px solid #e2e8f0;
  position: relative;
}
.flow-number {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  width: 28px; height: 28px; background: #2563eb; color: #fff;
  border-radius: 50%; font-size: 13px; font-weight: 900;
  display: flex; align-items: center; justify-content: center;
}
.flow-icon { font-size: 32px; margin-bottom: 12px; margin-top: 8px; }
.flow-step h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.flow-step p { font-size: 13px; color: #64748b; }
.flow-connector {
  width: 40px; height: 2px; background: #cbd5e1; margin-top: 80px; flex-shrink: 0;
}

/* === Services === */
.service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.service-card {
  border-radius: 16px; overflow: hidden; border: 1px solid #e2e8f0;
  transition: all 0.2s; background: #fff;
}
.service-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.06); transform: translateY(-2px); }
.service-card img { width: 100%; height: 180px; object-fit: cover; filter: saturate(0.9); }
.service-body { padding: 24px; }
.service-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.service-body p { font-size: 14px; color: #64748b; }

/* === Compare === */
.compare-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 800px; margin: 0 auto; }
.compare-card { padding: 36px; border-radius: 16px; }
.compare-label { font-size: 14px; font-weight: 700; margin-bottom: 20px; letter-spacing: 0.1em; }
.before { background: rgba(255,255,255,0.1); }
.before .compare-label { color: #fca5a5; }
.before li { color: rgba(255,255,255,0.8); padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.1); font-size: 14px; }
.before li::before { content: '✕ '; color: #fca5a5; }
.after { background: rgba(255,255,255,0.15); }
.after .compare-label { color: #86efac; }
.after li { color: #fff; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.1); font-size: 14px; }
.after li::before { content: '✓ '; color: #86efac; font-weight: 700; }

/* === Case Study === */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.case-card { border: 1px solid #e2e8f0; border-radius: 16px; overflow: hidden; }
.case-header { padding: 24px 28px; background: #f8fafc; border-bottom: 1px solid #e2e8f0; }
.case-industry {
  display: inline-block; background: #2563eb; color: #fff;
  padding: 2px 10px; border-radius: 4px; font-size: 12px; font-weight: 700; margin-bottom: 8px;
}
.case-header h3 { font-size: 18px; font-weight: 700; }
.case-plan { font-size: 13px; color: #2563eb; font-weight: 600; }
.case-body { padding: 24px 28px; }
.case-section { margin-bottom: 16px; }
.case-section strong { font-size: 12px; color: #94a3b8; letter-spacing: 0.1em; text-transform: uppercase; }
.case-section p { font-size: 14px; color: #475569; margin-top: 4px; }
.case-result {
  background: #eff6ff; padding: 12px 16px; border-radius: 8px;
  font-size: 14px; color: #1e40af; margin-top: 8px;
}

/* === Pricing === */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 900px; margin: 0 auto; }
.pricing-card {
  background: #fff; padding: 36px 28px; border-radius: 16px; text-align: center;
  border: 2px solid #e2e8f0; position: relative;
}
.pricing-popular { border-color: #1d4ed8; transform: scale(1.03); box-shadow: 0 4px 24px rgba(30,64,175,0.1); }
.popular-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: #2563eb; color: #fff; padding: 4px 20px; border-radius: 20px;
  font-size: 13px; font-weight: 700; white-space: nowrap;
}
.plan-name { font-size: 16px; font-weight: 700; color: #64748b; margin-bottom: 8px; }
.price-num { font-size: 48px; font-weight: 900; color: #0f172a; }
.price-unit { font-size: 16px; color: #64748b; }
.price-unit small { font-size: 14px; }
.plan-desc { font-size: 13px; color: #94a3b8; margin: 8px 0 24px; }
.pricing-card ul { text-align: left; margin-bottom: 24px; }
.pricing-card li { font-size: 14px; color: #475569; padding: 8px 0; border-bottom: 1px solid #f1f5f9; }
.pricing-note { text-align: center; font-size: 13px; color: #94a3b8; margin-top: 24px; }

/* === FAQ === */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item { border: 1px solid #e2e8f0; border-radius: 12px; margin-bottom: 10px; overflow: hidden; background: #fff; }
.faq-item summary {
  padding: 20px 24px; font-size: 15px; font-weight: 700; cursor: pointer;
  list-style: none; display: flex; justify-content: space-between; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 24px; color: #94a3b8; flex-shrink: 0; margin-left: 16px; }
.faq-item[open] summary::after { content: '−'; }
.faq-item[open] summary { border-bottom: 1px solid #f1f5f9; }
.faq-item p { padding: 16px 24px 20px; font-size: 14px; color: #64748b; line-height: 1.8; }

/* === CTA === */
.cta-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.cta-text h2 { font-size: 32px; font-weight: 900; margin-bottom: 12px; }
.cta-subtitle { font-size: 18px; color: #94a3b8; margin-bottom: 28px; }
.cta-subtitle strong { color: #60a5fa; }
.cta-list li { font-size: 15px; padding: 8px 0; padding-left: 24px; position: relative; color: #cbd5e1; }
.cta-list li::before { content: '✓'; position: absolute; left: 0; color: #60a5fa; font-weight: 700; }
.cta-note { margin-top: 24px; font-size: 13px; color: #64748b; }
.cta-card {
  background: #fff; padding: 36px; border-radius: 20px; text-align: center;
  box-shadow: 0 8px 40px rgba(0,0,0,0.2);
}
.cta-card h3 { font-size: 20px; font-weight: 700; color: #0f172a; margin-bottom: 8px; }
.cta-card > p { font-size: 14px; color: #64748b; margin-bottom: 24px; }
.cta-email { display: block; font-size: 13px; color: #64748b; margin-top: 12px; }
.cta-divider {
  display: flex; align-items: center; gap: 16px; margin: 20px 0;
  color: #cbd5e1; font-size: 13px;
}
.cta-divider::before, .cta-divider::after { content: ''; flex: 1; height: 1px; background: #e2e8f0; }
.cta-line-note { font-size: 13px; color: #6b7280; margin-top: 12px; }

/* === Footer === */
.footer { background: #0f172a; color: #94a3b8; padding: 48px 0 24px; }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 32px; }
.footer-brand .logo { margin-bottom: 8px; color: #fff; }
.footer-brand .logo .logo-icon { background: #2563eb; }
.footer-brand p { font-size: 13px; }
.footer-small { font-size: 12px; color: #475569; margin-top: 4px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 13px; transition: color 0.2s; }
.footer-links a:hover { color: #fff; }
.copyright { text-align: center; font-size: 12px; border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px; }

/* === Responsive === */
@media (max-width: 768px) {
  .sp-only { display: inline; }
  .header-nav { display: none; }
  .hero { padding: 100px 0 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-text h1 { font-size: 30px; }
  .hero-image img { height: 260px; }
  .hero-trust { flex-wrap: wrap; gap: 12px; }
  .trust-divider { display: none; }

  .proof-grid { grid-template-columns: 1fr; gap: 20px; }
  .proof-number { font-size: 36px; }

  .section { padding: 64px 0; }
  .section-header h2 { font-size: 24px; }

  .feature-grid { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 340px; margin: 0 auto; }
  .pricing-popular { transform: none; }
  .compare-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .cost-compare { grid-template-columns: 1fr; }

  .urgency-inner { grid-template-columns: 1fr; }
  .urgency-inner img { height: 240px; }

  .flow-grid { flex-direction: column; align-items: center; gap: 12px; }
  .flow-connector { width: 2px; height: 24px; margin: 0; }
  .flow-step { max-width: 300px; width: 100%; }

  .cta-inner { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; gap: 24px; }
  .footer-links { flex-wrap: wrap; gap: 16px; }
}