:root {
  --primary: #1e3a8a;
  --primary-hover: #1e40af;
  --primary-light: #eff6ff;
  --accent: #d97706;
  --accent-hover: #b45309;
  --text-main: #0f172a;
  --text-muted: #475569;
  --bg-main: #ffffff;
  --bg-alt: #f8fafc;
  --bg-dark: #0f172a;
  --border: #e2e8f0;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 30px -10px rgba(15, 23, 42, 0.12);
  --font-body: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Plus Jakarta Sans', 'Noto Sans JP', 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);
  color: var(--text-main);
  background-color: var(--bg-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--primary-hover);
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 0;
  transition: all 0.3s ease;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  height: 48px;
}

.brand-logo img {
  height: 100%;
  width: auto;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 1.8rem;
  align-items: center;
}

.main-nav a {
  font-weight: 500;
  color: var(--text-main);
  font-size: 0.95rem;
}

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

.header-cta {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.header-email {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
  cursor: pointer;
  border: 1px solid transparent;
  text-align: center;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.25);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(217, 119, 6, 0.35);
}

.btn-secondary {
  background-color: var(--primary-light);
  color: var(--primary);
  border-color: rgba(30, 58, 138, 0.2);
}

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

/* Hero Section */
.hero-section {
  padding: 4.5rem 0 4rem;
  background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: #fef3c7;
  color: #92400e;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.35rem 0.85rem;
  border-radius: 50px;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.35rem;
  line-height: 1.3;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin-top: 2rem;
  padding-top: 1.8rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

.trust-item svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid #ffffff;
}

.hero-image-wrapper img {
  width: 100%;
  height: 440px;
  object-fit: cover;
}

/* Section Common */
.section {
  padding: 5rem 0;
}

.section-alt {
  background-color: var(--bg-alt);
}

.section-title-wrapper {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 3.5rem;
}

.section-subtitle {
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.35;
  margin-bottom: 1rem;
}

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

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

.card {
  background-color: #ffffff;
  padding: 2.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 52px;
  height: 52px;
  background-color: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 1.25rem;
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
  line-height: 1.4;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Process Timeline */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

.process-step {
  background: #ffffff;
  padding: 1.8rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  position: relative;
}

.step-num {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 1rem;
}

.step-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

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

/* Credibility Tables & Content */
.content-box {
  background: #ffffff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 2.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 2.5rem;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

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

.data-table th, .data-table td {
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  background-color: var(--bg-alt);
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
}

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

.badge-inc {
  color: #166534;
  background-color: #dcfce7;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.8rem;
}

.badge-exc {
  color: #991b1b;
  background-color: #fee2e2;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.8rem;
}

/* FAQ Section */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-question:focus-visible {
  outline: 2px solid var(--primary);
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
  color: var(--primary);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.8;
  display: none;
}

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

/* Form Section */
.form-section {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  color: #ffffff;
  padding: 5.5rem 0;
}

.form-container-box {
  max-width: 680px;
  margin: 0 auto;
  background-color: #ffffff;
  color: var(--text-main);
  border-radius: var(--radius);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
}

.form-header {
  text-align: center;
  margin-bottom: 2rem;
}

.form-header h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 0.65rem;
  color: var(--text-main);
}

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

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group.full {
  grid-column: span 2;
}

.form-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
}

.form-label .req {
  color: #dc2626;
  margin-left: 0.2rem;
}

.form-input {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: var(--font-body);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.15);
}

.phone-input-group {
  display: flex;
  align-items: center;
}

.phone-prefix {
  background-color: var(--bg-alt);
  border: 1px solid var(--border);
  border-right: none;
  padding: 0.85rem 0.85rem;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.phone-input-group .form-input {
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  margin-top: 0.25rem;
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.form-error-msg {
  color: #dc2626;
  font-size: 0.8rem;
  display: none;
  margin-top: 0.2rem;
}

.form-group.has-error .form-error-msg {
  display: block;
}

.form-group.has-error .form-input {
  border-color: #dc2626;
}

.form-microcopy {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 1rem;
  text-align: center;
  line-height: 1.5;
}

/* Success Panel */
.success-panel {
  display: none;
  text-align: center;
  padding: 2.5rem 1.5rem;
}

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

.success-icon-wrap {
  width: 80px;
  height: 80px;
  background-color: #dcfce7;
  color: #166534;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.checkmark-svg {
  width: 48px;
  height: 48px;
  stroke: #166534;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.checkmark-circle {
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark-check {
  transform-origin: 50% 50%;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: stroke 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.6s forwards;
}

@keyframes stroke {
  100% { stroke-dashoffset: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .checkmark-circle, .checkmark-check {
    animation: none;
    stroke-dashoffset: 0;
  }
}

.success-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.85rem;
}

.success-desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.success-contact {
  background-color: var(--bg-alt);
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

/* Error Panel */
.error-panel {
  display: none;
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
  padding: 1.2rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  text-align: center;
}

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

/* Footer */
.site-footer {
  background-color: var(--bg-dark);
  color: #94a3b8;
  padding: 4.5rem 0 2rem;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo {
  height: 42px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-transparency {
  background-color: rgba(255, 255, 255, 0.05);
  padding: 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  line-height: 1.7;
}

.footer-transparency strong {
  color: #ffffff;
}

.footer-links h3 {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: #94a3b8;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.back-to-top {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.back-to-top:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
  background-color: #ffffff;
  color: var(--text-main);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  z-index: 2000;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cookie-banner.hidden {
  display: none;
}

.cookie-text {
  font-size: 0.88rem;
  line-height: 1.6;
}

.cookie-actions {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

.btn-cookie {
  padding: 0.5rem 1.2rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
}

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

.btn-cookie-decline {
  background-color: var(--bg-alt);
  color: var(--text-main);
  border-color: var(--border);
}

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

@media (max-width: 640px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-group.full {
    grid-column: span 1;
  }
  .cookie-banner {
    flex-direction: column;
    align-items: flex-start;
  }
  .cookie-actions {
    width: 100%;
    justify-content: flex-end;
  }
  .main-nav {
    display: none;
  }
  .form-container-box {
    padding: 1.8rem 1.2rem;
  }
}