@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

:root {
  --primary: #1a202c;
  --primary-light: #2d3748;
  --accent: #d97706;
  --accent-hover: #b45309;
  --bg-light: #f8fafc;
  --surface: #ffffff;
  --text-dark: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --font-main: 'Noto Sans JP', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.7;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 10px;
  background: var(--accent);
  color: #fff;
  padding: 8px 16px;
  z-index: 10000;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 500;
}
.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;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--primary);
  font-weight: 700;
  font-size: 1.35rem;
}

.brand-logo img {
  width: 36px;
  height: 36px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 24px;
  align-items: center;
}

nav a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

nav a:hover, nav a.active {
  color: var(--accent);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 10px 22px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

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

main {
  flex: 1;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 24px;
}

.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  padding: 80px 24px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.5rem;
  line-height: 1.3;
  margin-bottom: 20px;
  font-weight: 700;
}

.hero-content p {
  font-size: 1.1rem;
  color: #cbd5e1;
  margin-bottom: 30px;
}

.hero-img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.3);
  object-fit: cover;
  max-height: 420px;
}

.stats-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 30px 24px;
}

.stats-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  text-align: center;
}

.stat-item h3 {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 4px;
}

.stat-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
}

.section-title h2 {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
  transition: transform 0.2s;
}

.card:hover {
  transform: translateY(-4px);
}

.card-icon {
  font-size: 2.2rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--primary);
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: calc(var(--radius) - 4px);
  margin-bottom: 16px;
}

.features-section {
  background: var(--surface);
  padding: 60px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.features-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.features-list {
  list-style: none;
  margin-top: 20px;
}

.features-list li {
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.features-list i {
  color: var(--accent);
  margin-top: 4px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  align-items: stretch;
}

.price-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.price-card.featured {
  border: 2px solid var(--accent);
  box-shadow: 0 10px 25px -5px rgba(217,119,6,0.15);
}

.badge {
  position: absolute;
  top: -14px;
  right: 20px;
  background: var(--accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
}

.price-amount {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary);
  margin: 16px 0;
}

.form-section {
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  padding: 50px 40px;
  max-width: 800px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.95rem;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #475569;
  border-radius: 8px;
  background: #0f172a;
  color: #fff;
  font-size: 1rem;
  font-family: inherit;
}

.form-control:focus {
  border-color: var(--accent);
  outline: none;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: #cbd5e1;
}

.checkbox-group a {
  color: var(--accent);
}

.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
}

.faq-header {
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  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-body {
  padding: 0 24px 20px 24px;
  color: var(--text-muted);
  display: none;
}

.faq-item.active .faq-body {
  display: block;
}

.trust-layer {
  background: #0f172a;
  color: #94a3b8;
  padding: 40px 24px;
  border-top: 1px solid #1e293b;
  font-size: 0.85rem;
}

.trust-container {
  max-width: 1200px;
  margin: 0 auto;
}

.trust-title {
  color: #e2e8f0;
  font-weight: 700;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

footer {
  background: #090d16;
  color: #64748b;
  padding: 40px 24px 20px 24px;
  font-size: 0.85rem;
  border-top: 1px solid #1e293b;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}

.footer-col h4 {
  color: #f1f5f9;
  margin-bottom: 16px;
  font-size: 1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 8px;
}

.footer-col a {
  color: #94a3b8;
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 20px;
  border-top: 1px solid #1e293b;
  text-align: center;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #0f172a;
  color: #fff;
  padding: 20px 24px;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.3);
  z-index: 9999;
  display: none;
}

.cookie-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.cookie-buttons {
  display: flex;
  gap: 12px;
}

.btn-sm {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
}

.btn-accept {
  background: var(--accent);
  color: #fff;
}

.btn-decline {
  background: #334155;
  color: #fff;
}

@media (max-width: 768px) {
  .hero-grid, .features-grid {
    grid-template-columns: 1fr;
  }
  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    padding: 20px;
    border-bottom: 1px solid var(--border);
  }
  nav.open {
    display: block;
  }
  nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .mobile-menu-btn {
    display: block;
  }
}

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