:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --bg-main: #fbfbfa;
  --bg-card: #ffffff;
  --bg-subtle: #f4f3f0;
  --text-main: #18181b;
  --text-muted: #52525b;
  --text-light: #71717a;
  --accent: #b45309;
  --accent-hover: #92400e;
  --accent-soft: #fef3c7;
  --border: #e4e4e7;
  --border-light: #f4f4f5;
  --max-w: 1180px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --radius: 10px;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent);
  color: #fff;
  padding: 8px 16px;
  z-index: 100;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* Site Header */
.site-header {
  background: rgba(251, 251, 250, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.brand-logo svg {
  width: 32px;
  height: 32px;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.15s ease;
}
.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--text-main);
  color: #fff;
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  transition: background 0.15s ease;
}
.header-cta:hover {
  background: #27272a;
}
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  padding: 8px;
  border-radius: 6px;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 64px 0 56px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(2.1rem, 4vw, 3.2rem);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero-desc {
  font-size: 1.08rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  border-radius: 6px;
  transition: background 0.15s ease;
}
.btn-primary:hover {
  background: var(--accent-hover);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border);
  font-weight: 600;
  border-radius: 6px;
  transition: border-color 0.15s, background 0.15s;
}
.btn-secondary:hover {
  background: var(--bg-subtle);
  border-color: #d4d4d8;
}
.hero-price-tag {
  display: inline-block;
  padding: 6px 14px;
  border-left: 3px solid var(--accent);
  background: var(--bg-card);
  font-size: 0.9rem;
  color: var(--text-muted);
  border-radius: 0 4px 4px 0;
}
.hero-price-tag strong {
  color: var(--text-main);
  font-size: 1.05rem;
}

/* Hero Illustration Container */
.hero-media {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-md);
}

/* Sections */
.section {
  padding: 64px 0;
}
.section-subtle {
  background-color: var(--bg-subtle);
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}
.section-tag {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.section-desc {
  color: var(--text-muted);
}

/* Card Grids */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.card-icon svg {
  width: 24px;
  height: 24px;
}
.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.card-text {
  font-size: 0.95rem;
  color: var(--text-muted);
}
.card-price {
  margin-top: 14px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Steps */
.step-item {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 24px;
  border-radius: var(--radius);
}
.step-number {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-item summary {
  padding: 18px 22px;
  font-weight: 600;
  font-size: 1rem;
  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: 1.25rem;
  color: var(--accent);
  font-weight: 400;
}
.faq-item[open] summary::after {
  content: "—";
}
.faq-content {
  padding: 0 22px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Contact Details Box */
.contact-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}
.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.contact-icon {
  width: 22px;
  height: 22px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 3px;
}
.contact-label {
  font-size: 0.8rem;
  color: var(--text-light);
  display: block;
}
.contact-val {
  font-weight: 600;
  color: var(--text-main);
}
.contact-val a:hover {
  text-decoration: underline;
}

/* Legal Content styling */
.legal-body {
  max-width: 820px;
  margin: 0 auto;
  background: var(--bg-card);
  padding: 44px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.legal-body h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 32px 0 12px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}
.legal-body p, .legal-body ul {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.legal-body ul {
  padding-left: 20px;
}

/* Site Footer */
.site-footer {
  background: #18181b;
  color: #a1a1aa;
  padding: 56px 0 32px;
  font-size: 0.9rem;
  border-top: 1px solid #27272a;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand h3 {
  color: #fff;
  font-size: 1.15rem;
  margin-bottom: 10px;
}
.footer-links h4 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 14px;
}
.footer-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-nav a:hover {
  color: #fff;
}
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid #27272a;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.82rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  max-width: 480px;
  margin-left: auto;
  background: #18181b;
  color: #f4f4f5;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
  border: 1px solid #3f3f46;
  z-index: 1000;
  display: none;
}
.cookie-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #fff;
}
.cookie-text {
  font-size: 0.84rem;
  color: #d4d4d8;
  margin-bottom: 16px;
  line-height: 1.5;
}
.cookie-actions {
  display: flex;
  gap: 10px;
}
.btn-cookie-accept {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}
.btn-cookie-decline {
  background: #27272a;
  color: #d4d4d8;
  border: 1px solid #3f3f46;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.82rem;
  cursor: pointer;
}

/* Responsive */
@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .contact-box {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--bg-main);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .site-nav.is-open {
    display: flex;
  }
  .menu-toggle {
    display: block;
  }
}