:root {
  --primary: #0F172A;
  --primary-light: #1E293B;
  --accent: #0284C7;
  --accent-hover: #0369A1;
  --accent-gold: #D97706;
  --bg-light: #F8FAFC;
  --text-dark: #334155;
  --text-muted: #64748B;
  --white: #FFFFFF;
  --border: #E2E8F0;
  --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --radius: 12px;
}

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

body {
  font-family: 'Noto Sans JP', sans-serif;
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--accent);
  color: var(--white);
  padding: 8px 16px;
  z-index: 1000;
  transition: top 0.2s;
  text-decoration: none;
  border-radius: 4px;
}
.skip-link:focus {
  top: 10px;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: var(--accent-hover);
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  background: var(--primary);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 20px;
}
.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--white);
}
.logo-group img {
  width: 40px;
  height: 40px;
}
.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.nav-desktop {
  display: flex;
  gap: 20px;
  align-items: center;
}
.nav-desktop a {
  color: #E2E8F0;
  font-size: 0.95rem;
  font-weight: 500;
}
.nav-desktop a:hover {
  color: var(--white);
}

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

.nav-mobile {
  display: none;
  background: var(--primary-light);
  padding: 15px 20px;
  flex-direction: column;
  gap: 12px;
}
.nav-mobile.active {
  display: flex;
}
.nav-mobile a {
  color: var(--white);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  background-color: var(--accent);
  color: var(--white);
  font-weight: 700;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.2s, transform 0.1s;
}
.btn:hover {
  background-color: var(--accent-hover);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-gold {
  background-color: var(--accent-gold);
}
.btn-gold:hover {
  background-color: #B45309;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(2,132,199,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero-content h1 {
  font-size: 2.3rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
}
.hero-content p {
  font-size: 1.1rem;
  color: #94A3B8;
  margin-bottom: 30px;
}
.hero-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
}

/* Stats Section */
.stats {
  background: var(--white);
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stat-item h3 {
  font-size: 2rem;
  color: var(--accent);
  font-weight: 700;
}
.stat-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Section Common */
.section {
  padding: 70px 0;
}
.section-title {
  text-align: center;
  margin-bottom: 50px;
}
.section-title h2 {
  font-size: 1.9rem;
  color: var(--primary);
  margin-bottom: 10px;
}
.section-title p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Steps Section */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.step-card {
  background: var(--white);
  padding: 30px 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  position: relative;
}
.step-icon {
  width: 60px;
  height: 60px;
  background: #E0F2FE;
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 20px;
}
.step-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.service-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.service-card-body {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}
.service-card-body h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--primary);
}
.service-card-body p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

/* Feature Block */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--white);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.feature-block img {
  width: 100%;
  border-radius: var(--radius);
  object-fit: cover;
}
.feature-list {
  list-style: none;
  margin-top: 20px;
}
.feature-list li {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.feature-list i {
  color: var(--accent);
}

/* Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  align-items: stretch;
}
.price-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 35px 25px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.price-card.featured {
  border: 2px solid var(--accent);
  box-shadow: var(--shadow);
  transform: scale(1.03);
}
.badge-featured {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--white);
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
}
.price-card h3 {
  font-size: 1.3rem;
  text-align: center;
  margin-bottom: 15px;
}
.price-amount {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  margin-bottom: 20px;
}
.price-amount span {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 400;
}
.price-features {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}
.price-features li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Form Section */
.form-section {
  background: var(--primary);
  color: var(--white);
  padding: 70px 0;
}
.form-container {
  max-width: 650px;
  margin: 0 auto;
  background: var(--primary-light);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  font-size: 0.95rem;
}
.form-group input, .form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #475569;
  border-radius: 6px;
  background: #0F172A;
  color: var(--white);
  font-family: inherit;
  font-size: 1rem;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--accent);
  outline: none;
}
.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 25px;
}
.checkbox-group input {
  width: auto;
  margin-top: 5px;
}
.checkbox-group label {
  font-size: 0.85rem;
  color: #94A3B8;
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border-radius: 8px;
  margin-bottom: 15px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px;
  background: none;
  border: none;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.faq-answer {
  padding: 0 20px 20px 20px;
  color: var(--text-muted);
  display: none;
}
.faq-item.active .faq-answer {
  display: block;
}

/* Trust Layer */
.trust-layer {
  background: #E2E8F0;
  padding: 30px 0;
  font-size: 0.85rem;
  color: #475569;
  border-top: 1px solid #CBD5E1;
}
.trust-layer h4 {
  color: var(--primary);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

/* Footer */
.footer {
  background: var(--primary);
  color: #94A3B8;
  padding: 50px 0 20px 0;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer h4 {
  color: var(--white);
  margin-bottom: 15px;
}
.footer-links {
  list-style: none;
}
.footer-links li {
  margin-bottom: 8px;
}
.footer-links a {
  color: #94A3B8;
}
.footer-links a:hover {
  color: var(--white);
}
.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #334155;
  font-size: 0.8rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--primary);
  color: var(--white);
  padding: 20px;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
  z-index: 1000;
  display: none;
}
.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.cookie-buttons {
  display: flex;
  gap: 10px;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-grid, .feature-block, .pricing-grid, .services-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    max-width: 500px;
    margin: 0 auto;
  }
  .price-card.featured {
    transform: none;
  }
  .steps-grid, .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }
  .burger-btn {
    display: block;
  }
  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
  .stats-grid, .steps-grid {
    grid-template-columns: 1fr;
  }
  .hero-content h1 {
    font-size: 1.8rem;
  }
}

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