:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #0d9488;
  --accent-hover: #115e59;
  --highlight: #d97706;
  --text: #334155;
  --text-light: #64748b;
  --bg-light: #f8fafc;
  --white: #ffffff;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text);
  background-color: #ffffff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--accent);
  color: var(--white);
  padding: 0.75rem 1.25rem;
  z-index: 10000;
  transition: top 0.2s ease;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
}
.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  background: var(--primary);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.logo-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--white);
}
.logo-group img {
  width: 40px;
  height: 40px;
}
.logo-text {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.logo-text span {
  color: var(--accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-list {
  display: flex;
  list-style: none;
  gap: 1.75rem;
}
.nav-link {
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
  font-size: 0.95rem;
}
.nav-link:hover, .nav-link.active {
  color: var(--accent);
}

.nav-cta {
  background: var(--accent);
  color: var(--white);
  padding: 0.6rem 1.25rem;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  transition: background 0.2s, transform 0.2s;
}
.nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
  padding: 5rem 0 6rem;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}
.hero-content h1 {
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}
.hero-content h1 span {
  color: var(--highlight);
}
.hero-desc {
  font-size: 1.125rem;
  color: #94a3b8;
  margin-bottom: 2rem;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  font-size: 1rem;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(13, 148, 136, 0.3);
}
.btn-secondary {
  background: rgba(255,255,255,0.1);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.2);
}

.hero-image-wrapper {
  position: relative;
}
.hero-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
  border: 4px solid rgba(255,255,255,0.1);
}

/* Stats Section */
.stats-section {
  background: var(--bg-light);
  padding: 3rem 0;
  border-bottom: 1px solid var(--border);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}
.stat-card {
  padding: 1rem;
}
.stat-number {
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 0.25rem;
}
.stat-label {
  color: var(--text-light);
  font-size: 0.9rem;
  font-weight: 500;
}

/* Steps Section */
.section-padding {
  padding: 5rem 0;
}
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3.5rem;
}
.section-subtitle {
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}
.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.step-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.step-number {
  width: 44px;
  height: 44px;
  background: var(--accent);
  color: var(--white);
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  font-size: 1.1rem;
}
.step-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--primary);
}
.step-desc {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* Trust / Feature Section */
.trust-block {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 3rem;
  border: 1px solid var(--border);
  margin-bottom: 4rem;
}
.trust-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.trust-content h3 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 1rem;
}
.trust-list {
  list-style: none;
  margin-top: 1.5rem;
}
.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.trust-item i {
  color: var(--accent);
  font-size: 1.2rem;
  margin-top: 0.2rem;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}
.card-img-wrapper {
  height: 200px;
  overflow: hidden;
}
.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.card-body {
  padding: 1.75rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}
.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.75rem;
}
.card-text {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}
.card-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}
.pricing-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.2s;
}
.pricing-card.featured {
  border: 2px solid var(--accent);
  box-shadow: var(--shadow);
  transform: scale(1.03);
}
.badge-featured {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--white);
  padding: 0.25rem 1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 800;
}
.pricing-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.pricing-price {
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 1.5rem;
}
.pricing-features {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
}
.pricing-features li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #f1f5f9;
  font-size: 0.9rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.pricing-features i {
  color: var(--accent);
}

/* Form Section */
.form-section {
  background: var(--primary);
  color: var(--white);
  border-radius: var(--radius);
  padding: 4rem 3rem;
  margin-bottom: 5rem;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
}
.form-info h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}
.form-info p {
  color: #94a3b8;
  margin-bottom: 1.5rem;
}
.contact-details-list {
  list-style: none;
}
.contact-details-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: #e2e8f0;
}
.contact-details-list i {
  color: var(--accent);
}

.lead-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.form-group label {
  font-size: 0.875rem;
  font-weight: 700;
  color: #e2e8f0;
}
.form-control {
  padding: 0.85rem 1rem;
  border-radius: 6px;
  border: 1px solid #334155;
  background: #1e293b;
  color: var(--white);
  font-size: 0.95rem;
  width: 100%;
}
.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.25);
}
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: #94a3b8;
}
.form-checkbox input {
  margin-top: 0.2rem;
}
.form-checkbox a {
  color: var(--accent);
}

/* FAQ Accordion */
.accordion {
  max-width: 800px;
  margin: 0 auto;
}
.accordion-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 1rem;
  overflow: hidden;
  background: var(--white);
}
.accordion-header {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.accordion-content {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-light);
  display: none;
  font-size: 0.95rem;
}
.accordion-item.active .accordion-content {
  display: block;
}
.accordion-item.active .accordion-header i {
  transform: rotate(180deg);
}

/* Trust Layer (Pre-Footer) */
.trust-layer {
  background: #f1f5f9;
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  font-size: 0.85rem;
  color: var(--text-light);
}
.trust-layer-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.trust-layer-title {
  font-weight: 700;
  color: var(--primary);
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  background: var(--primary);
  color: #94a3b8;
  padding: 4rem 0 2rem;
  border-top: 1px solid #1e293b;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-col h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 1.25rem;
  font-weight: 700;
}
.footer-links {
  list-style: none;
}
.footer-links li {
  margin-bottom: 0.6rem;
}
.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #1e293b;
  text-align: center;
  font-size: 0.8rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  max-width: 500px;
  background: var(--primary);
  color: var(--white);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.3);
  z-index: 9999;
  display: none;
  border: 1px solid #334155;
}
.cookie-banner p {
  font-size: 0.85rem;
  margin-bottom: 1rem;
  color: #cbd5e1;
}
.cookie-actions {
  display: flex;
  gap: 0.75rem;
}
.cookie-btn {
  padding: 0.4rem 1rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
}
.cookie-btn-accept {
  background: var(--accent);
  color: var(--white);
}
.cookie-btn-decline {
  background: transparent;
  color: #94a3b8;
  border: 1px solid #475569;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid, .trust-grid, .form-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .stats-grid, .steps-grid, .cards-grid, .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    transform: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .menu-toggle {
    display: block;
  }
  .main-nav {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--primary);
    flex-direction: column;
    padding: 2rem;
    display: none;
    border-bottom: 1px solid #1e293b;
  }
  .main-nav.active {
    display: flex;
  }
  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
  }
  .stats-grid, .steps-grid, .cards-grid, .pricing-grid {
    grid-template-columns: 1fr;
  }
  .hero-content h1 {
    font-size: 2rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}