:root {
  --bg-primary: #fbfbf9;
  --bg-surface: #ffffff;
  --bg-muted: #f4f4ee;
  --text-primary: #18181b;
  --text-secondary: #575760;
  --text-muted: #888892;
  --accent: #b08133;
  --accent-hover: #966c27;
  --accent-light: #f9f5ea;
  --border: #e6e6df;
  --border-focus: #18181b;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --container-max: 1180px;
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
}

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

body {
  font-family: var(--font-base);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  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: 10px;
  background: var(--text-primary);
  color: #fff;
  padding: 8px 16px;
  z-index: 1000;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 10px;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(251, 251, 249, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo-mark {
  color: var(--accent);
}

.site-nav .nav-list {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.header-action {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text-primary);
  margin: 4px 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 10px 22px;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background-color: var(--text-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: #33333b;
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-secondary:hover {
  background-color: var(--bg-muted);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--text-primary);
}

.btn-outline:hover {
  background-color: var(--text-primary);
  color: #fff;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

/* Hero Section */
.hero-section {
  padding: 60px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.hero-meta {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 32px;
  padding: 20px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.hero-price-tag {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.meta-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.meta-val {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
}

.sub-curr {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text-muted);
}

.hero-cta-group {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-highlights {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.hl-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hl-check {
  color: var(--accent);
  font-weight: bold;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-svg {
  max-width: 420px;
  height: auto;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.05));
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-surface {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-title {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* Cards Grid */
.grid-cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-cards-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.card-icon-wrap {
  color: var(--accent);
  margin-bottom: 18px;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.card-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
  flex-grow: 1;
}

.price-badge {
  display: inline-block;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--accent);
}

/* Editorial Split */
.editorial-split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.text-body {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 18px;
}

.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}

.spec-box {
  padding: 16px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.spec-num {
  display: block;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent);
}

.spec-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Process Grid */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.process-step {
  padding: 24px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.step-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 12px;
}

.step-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* FAQ */
.faq-container {
  max-width: 800px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}

.faq-question {
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 30px;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  font-size: 1.3rem;
  color: var(--accent);
  transition: transform 0.2s ease;
}

details[open] .faq-question::after {
  content: "−";
}

.faq-answer {
  margin-top: 14px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* CTA */
.section-cta {
  background-color: var(--accent-light);
  border-top: 1px solid var(--border);
}

.cta-box {
  text-align: center;
  max-width: 680px;
}

.cta-heading {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Page Header for subpages */
.page-header {
  padding: 60px 0 40px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 14px;
}

.page-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 720px;
}

/* Subpage content layouts */
.text-content-layout {
  max-width: 860px;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.content-block h2 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.content-block p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 16px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  background-color: var(--bg-surface);
}

.data-table th, .data-table td {
  padding: 14px 18px;
  border: 1px solid var(--border);
  font-size: 0.95rem;
  text-align: left;
}

.data-table th {
  background-color: var(--bg-muted);
  width: 28%;
  font-weight: 600;
}

/* Products Page */
.product-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 880px;
  margin: 0 auto;
}

.product-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px;
}

.product-title {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.product-desc {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.product-features {
  list-style: square;
  margin-left: 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.product-features li {
  margin-bottom: 6px;
}

.product-price-box {
  margin-bottom: 24px;
}

.price-val {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
}

.price-note {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-left: 8px;
}

/* Contact Page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info-panel h2, .contact-action-panel h2 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.info-card-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

.info-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.info-card-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.info-card-val {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.info-card-val a:hover {
  color: var(--accent);
}

.info-card-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.mail-direct-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-top: 24px;
  text-align: center;
}

.note-text {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 12px;
}

.access-note {
  margin-top: 32px;
  padding: 20px;
  background-color: var(--bg-muted);
  border-radius: var(--radius-md);
}

.access-note h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.access-note p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Legal Pages */
.legal-content {
  max-width: 800px;
  background-color: var(--bg-surface);
  padding: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.legal-date {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.legal-content h2 {
  font-size: 1.3rem;
  margin: 32px 0 12px;
}

.legal-content h3 {
  font-size: 1.1rem;
  margin: 20px 0 8px;
}

.legal-content p, .legal-content ul {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.legal-content ul {
  margin-left: 20px;
}

.contact-box-legal {
  background-color: var(--bg-muted);
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  margin-top: 12px;
}

/* 404 */
.notfound-box {
  padding: 80px 20px;
  max-width: 540px;
  margin: 0 auto;
}

.notfound-code {
  font-size: 5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 12px;
}

.notfound-title {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.notfound-text {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.notfound-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.text-center {
  text-align: center;
}

/* Footer */
.site-footer {
  background-color: #141416;
  color: #c4c4cb;
  padding: 60px 0 30px;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand-logo .brand-text {
  font-size: 1.3rem;
  font-weight: 700;
  color: #ffffff;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-desc {
  line-height: 1.6;
  margin-bottom: 20px;
}

.footer-contact-info p {
  margin-bottom: 6px;
  color: #9999a5;
}

.footer-contact-info a {
  color: #ffffff;
}

.footer-heading {
  font-size: 0.95rem;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #27272c;
  padding-top: 24px;
  text-align: center;
  color: #777782;
  font-size: 0.85rem;
}

/* Cookie Banner */
.cookie-banner {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #ffffff;
  border-top: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  padding: 16px 0;
  z-index: 1000;
}

.cookie-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.cookie-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.cookie-text a {
  color: var(--text-primary);
  text-decoration: underline;
}

.cookie-buttons {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid, .editorial-split, .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .grid-cards-3, .process-grid {
    grid-template-columns: 1fr;
  }
  .grid-cards-2 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .cookie-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    padding: 20px;
  }
  .site-nav.open {
    display: block;
  }
  .site-nav .nav-list {
    flex-direction: column;
    gap: 16px;
  }
  .nav-toggle {
    display: block;
  }
}