:root {
  --primary: #0F172A;
  --primary-light: #1E293B;
  --accent: #0284C7;
  --accent-hover: #0369A1;
  --amber: #D97706;
  --bg-main: #F8FAFC;
  --surface: #FFFFFF;
  --text-main: #0F172A;
  --text-muted: #475569;
  --border: #E2E8F0;
  --border-dark: #334155;
  --radius: 8px;
  --shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --font-heading: 'Zen Kaku Gothic New', 'Noto Sans JP', sans-serif;
  --font-body: 'Noto Sans JP', 'Plus Jakarta Sans', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--accent);
  color: #FFFFFF;
  padding: 8px 16px;
  z-index: 1000;
  transition: top 0.2s ease;
  border-radius: 4px;
  font-weight: 700;
}
.skip-link:focus {
  top: 10px;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--border);
  padding: 0.85rem 0;
}

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

.brand-logo img {
  height: 48px;
  width: auto;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  align-items: center;
}

.main-nav a {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
}

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

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent);
  color: #FFFFFF !important;
  font-weight: 700;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius);
  transition: background-color 0.2s ease, transform 0.1s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
  min-height: 44px;
}
.btn-cta:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
}

/* Announcement Bar */
.announcement-bar {
  background: var(--primary);
  color: #F8FAFC;
  padding: 0.6rem 0;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border-dark);
}
.announcement-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.announcement-tag {
  background: var(--amber);
  color: #FFFFFF;
  font-weight: 800;
  font-size: 0.75rem;
  padding: 0.15rem 0.6rem;
  border-radius: 4px;
  text-transform: uppercase;
}

/* Hero Section */
.hero-section {
  padding: 4.5rem 0 5rem 0;
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(2, 132, 199, 0.18);
  border: 1px solid rgba(2, 132, 199, 0.4);
  color: #38BDF8;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: #94A3B8;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: #E2E8F0;
  font-weight: 600;
}

.trust-item svg {
  width: 22px;
  height: 22px;
  fill: #38BDF8;
  flex-shrink: 0;
}

.hero-image-wrapper {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  border: 2px solid var(--border-dark);
  position: relative;
}

/* Sections */
.section {
  padding: 5rem 0;
}
.section-alt {
  background-color: #FFFFFF;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3.5rem auto;
}

.section-subtitle {
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.1rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.35;
}

.section-desc {
  color: var(--text-muted);
  margin-top: 1rem;
  font-size: 1.05rem;
}

/* Grid Layouts */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 30px -5px rgba(15, 23, 42, 0.12);
}

.card-icon {
  width: 56px;
  height: 56px;
  background: rgba(2, 132, 199, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--accent);
}
.card-icon svg {
  width: 30px;
  height: 30px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: var(--primary);
}

.card-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

/* Methodology Stages */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.timeline-step {
  display: flex;
  gap: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  align-items: flex-start;
}

.step-number {
  background: var(--primary);
  color: #FFFFFF;
  font-weight: 900;
  font-size: 1.2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 2px solid var(--accent);
}

.step-content h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

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

/* Comparison Tables */
.table-wrapper {
  overflow-x: auto;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.custom-table th {
  background: var(--primary);
  color: #FFFFFF;
  padding: 1rem 1.5rem;
  font-weight: 800;
  font-family: var(--font-heading);
}

.custom-table td {
  padding: 1.1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.custom-table tr:last-child td {
  border-bottom: none;
}

/* FAQ Accordion */
.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 900px;
  margin: 0 auto;
}

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

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-icon {
  font-size: 1.4rem;
  font-weight: 400;
  transition: transform 0.2s ease;
  color: var(--accent);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
}

/* Form Section & Confirmation Modal */
.form-section {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  color: #FFFFFF;
  padding: 5rem 0;
}

.form-card {
  background: #FFFFFF;
  color: var(--text-main);
  border-radius: var(--radius);
  padding: 2.5rem;
  max-width: 680px;
  margin: 0 auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.3);
}

.form-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 900;
  text-align: center;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.form-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--primary);
}

input[type="text"],
input[type="email"],
input[type="tel"] {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  min-height: 44px;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.point-of-collection-notice {
  background: #F1F5F9;
  border-left: 4px solid var(--accent);
  padding: 1rem;
  border-radius: 0 6px 6px 0;
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.checkbox-group input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 0.2rem;
  accent-color: var(--accent);
  cursor: pointer;
}

.checkbox-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.form-error {
  color: #DC2626;
  font-size: 0.825rem;
  margin-top: 0.35rem;
  display: none;
  font-weight: 700;
}

/* Confirmation Review Modal Panel */
.review-panel {
  display: none;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-top: 1rem;
}

.review-panel.active {
  display: block;
}

.review-item {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.review-item strong {
  color: var(--primary);
}

/* Success Panel */
.success-panel {
  display: none;
  text-align: center;
  padding: 2rem 1rem;
}
.success-panel.active {
  display: block;
}

.success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.25rem auto;
}
.success-icon circle {
  fill: #DCFCE7;
}
.success-icon path {
  stroke: #16A34A;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.success-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.success-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

/* Footer */
.site-footer {
  background: #090D16;
  color: #94A3B8;
  padding: 4rem 0 2rem 0;
  font-size: 0.9rem;
  border-top: 1px solid var(--border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand img {
  height: 42px;
  filter: brightness(0) invert(1);
  margin-bottom: 1rem;
}

.footer-transparency {
  font-size: 0.85rem;
  line-height: 1.8;
  color: #64748B;
  margin-top: 1rem;
}

.footer-title {
  color: #FFFFFF;
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 1rem;
  font-family: var(--font-heading);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: #94A3B8;
}
.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #0F172A;
  color: #FFFFFF;
  padding: 1.25rem;
  z-index: 1000;
  border-top: 1px solid var(--border-dark);
  box-shadow: 0 -10px 25px rgba(0,0,0,0.4);
  display: none;
}
.cookie-banner.active {
  display: block;
}

.cookie-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cookie-text {
  font-size: 0.875rem;
  color: #CBD5E1;
  max-width: 800px;
}

.cookie-buttons {
  display: flex;
  gap: 0.75rem;
}

.btn-accept {
  background: var(--accent);
  color: #FFFFFF;
  border: none;
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  font-weight: 700;
  cursor: pointer;
  min-height: 44px;
}

.btn-decline {
  background: transparent;
  color: #94A3B8;
  border: 1px solid #475569;
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  cursor: pointer;
  min-height: 44px;
}
.btn-decline:hover {
  color: #FFFFFF;
  border-color: #94A3B8;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 640px) {
  .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 1.95rem;
  }
  .main-nav {
    display: none;
  }
  .trust-strip {
    grid-template-columns: 1fr;
  }
  .announcement-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}