:root {
  --primary-blue: #024F83;
  --primary-blue-light: #2a6199;
  --primary-blue-dark: #0d2d4d;
  --accent-orange: #d97706;
  --accent-orange-light: #fbbf24;
  --danger-red: #dc2626;
  --danger-red-light: #fef2f2;
  --danger-red-border: #fecaca;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --white: #ffffff;
  --section-padding: 80px 0;
  --container-width: 1100px;
}

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

body {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray-800);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

/* Hero Section - 2 Column Layout */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
  border-bottom: 1px solid var(--gray-200);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 968px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.hero-content {
  max-width: 100%;
}

.hero-catch {
  font-size: clamp(24px, 3.5vw, 34px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--gray-800);
  margin-bottom: 20px;
}

.hero-catch strong {
  color: var(--primary-blue);
}

.hero-sub {
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.9;
  margin-bottom: 24px;
}

.hero-target {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 13px;
  color: var(--gray-600);
  margin-bottom: 32px;
}

.hero-target::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--primary-blue);
  border-radius: 50%;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

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

.hero-image img {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 25px 50px rgba(0, 0, 0, 0.15));
  border-radius: 12px;
}

.hero-image-placeholder {
  width: 100%;
  max-width: 500px;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  font-size: 14px;
  filter: drop-shadow(0 25px 50px rgba(0, 0, 0, 0.12));
  border: 2px dashed var(--primary-blue-light);
}

.hero-image-placeholder i {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.6;
}

/* Sections */
section.fukuso-section {
  padding: var(--section-padding);
}

section.fukuso-section:nth-child(even) {
  background-color: var(--gray-50);
}

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-blue);
  background: rgba(2, 79, 131, 0.08);
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.section-title {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 24px;
  line-height: 1.5;
}

.section-lead {
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.9;
  max-width: 720px;
}

/* CTA Buttons */
.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  min-width: 180px;
}

.cta-btn-primary {
  background: var(--primary-blue);
  color: white;
  border: 2px solid var(--primary-blue);
}

.cta-btn-primary:hover {
  background: var(--primary-blue-dark);
  border-color: var(--primary-blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(2, 79, 131, 0.3);
}

.cta-btn-secondary {
  background: var(--white);
  color: var(--primary-blue);
  border: 2px solid var(--gray-300);
}

.cta-btn-secondary:hover {
  border-color: var(--primary-blue);
  transform: translateY(-2px);
}

.cta-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

/* Feature Cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 32px;
  transition: box-shadow 0.2s ease;
}

.feature-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: white;
  stroke-width: 2;
  fill: none;
}

.feature-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.8;
}

/* Content Blocks */
.content-block {
  margin-top: 32px;
}

.content-block p {
  margin-bottom: 16px;
}

.content-block p:last-child {
  margin-bottom: 0;
}

/* Info Box */
.info-box {
  background: rgba(2, 79, 131, 0.04);
  border-left: 3px solid var(--primary-blue);
  padding: 24px 28px;
  border-radius: 0 8px 8px 0;
  margin-top: 32px;
}

.info-box-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary-blue);
  margin-bottom: 12px;
}

.info-box p {
  font-size: 14px;
  color: var(--gray-700);
  line-height: 1.8;
}

/* Comparison Table */
.comparison-table-wrapper {
  margin-top: 40px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: 14px;
}

.comparison-table th,
.comparison-table td {
  padding: 16px 20px;
  text-align: center;
  border: 1px solid var(--gray-200);
}

.comparison-table thead th {
  background: var(--gray-100);
  font-weight: 600;
  color: var(--gray-700);
}

.comparison-table thead th:first-child {
  text-align: left;
}

.comparison-table thead th.highlight-col {
  background: var(--primary-blue);
  color: white;
}

.comparison-table tbody td:first-child {
  text-align: left;
  font-weight: 500;
  background: var(--gray-50);
}

.comparison-table tbody td.highlight-col {
  background: rgba(2, 79, 131, 0.06);
  font-weight: 600;
}

.comparison-table .icon-yes {
  color: #059669;
  font-weight: 700;
}

.comparison-table .icon-no {
  color: #dc2626;
}

.comparison-table .icon-partial {
  color: var(--accent-orange);
}

.comparison-table .highlight-text {
  color: var(--primary-blue);
  font-weight: 700;
}

@media (max-width: 768px) {
  .comparison-table-wrapper {
    margin-left: -24px;
    margin-right: -24px;
    padding: 0 24px;
  }
}

/* Differences Section */
.diff-item {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 24px 28px;
  margin-bottom: 16px;
}

.diff-item:last-child {
  margin-bottom: 0;
}

.diff-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-500);
  margin-bottom: 8px;
}

.diff-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 10px;
}

.diff-desc {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.7;
}

/* User Types */
.user-types {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.user-type {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 28px;
}

.user-type-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-type-title::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--primary-blue);
  border-radius: 2px;
}

.user-type p {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.7;
}

/* Issues List */
.issues-list {
  margin-top: 32px;
}

.issue-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--gray-200);
}

.issue-item:last-child {
  border-bottom: none;
}

.issue-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: rgba(217, 119, 6, 0.1);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.issue-icon svg {
  width: 16px;
  height: 16px;
  stroke: var(--accent-orange);
  stroke-width: 2;
  fill: none;
}

.issue-content h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 6px;
}

.issue-content p {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.7;
}

/* Risk Section */
.risk-section {
  background: linear-gradient(135deg, var(--danger-red-light) 0%, #fff5f5 100%) !important;
}

.risk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.risk-card {
  background: var(--white);
  border: 1px solid var(--danger-red-border);
  border-radius: 12px;
  padding: 24px;
  position: relative;
  transition: all 0.2s ease;
}

.risk-card:hover {
  box-shadow: 0 4px 16px rgba(220, 38, 38, 0.1);
  transform: translateY(-2px);
}

.risk-card-num {
  position: absolute;
  top: -12px;
  left: 20px;
  background: var(--danger-red);
  color: white;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 12px;
}

.risk-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--danger-red);
  margin-bottom: 8px;
  margin-top: 8px;
}

.risk-card-desc {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.7;
}

.risk-warning-box {
  margin-top: 40px;
  background: var(--white);
  border: 2px solid var(--danger-red);
  border-radius: 12px;
  padding: 28px 32px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.risk-warning-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--danger-red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.risk-warning-icon i {
  color: white;
  font-size: 24px;
}

.risk-warning-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--danger-red);
  line-height: 1.7;
}

.risk-warning-text span {
  display: block;
  font-size: 14px;
  font-weight: 400;
  color: var(--gray-600);
  margin-top: 8px;
}

/* Improvement List */
.improvement-list {
  margin-top: 32px;
}

.improvement-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--gray-200);
}

.improvement-item:last-child {
  border-bottom: none;
}

.improvement-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: rgba(2, 79, 131, 0.1);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.improvement-icon svg {
  width: 16px;
  height: 16px;
  stroke: var(--primary-blue);
  stroke-width: 2;
  fill: none;
}

.improvement-content h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 6px;
}

.improvement-content p {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.7;
}

/* System Diagram */
.system-diagram {
  margin-top: 40px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 32px;
  overflow: hidden;
}

.system-diagram img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.system-components {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.system-component {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 24px;
}

.system-component-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.system-component-num {
  width: 24px;
  height: 24px;
  background: var(--primary-blue);
  color: white;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}

.system-component p {
  font-size: 13px;
  color: var(--gray-600);
  line-height: 1.7;
}

/* Mid-page CTA */
.mid-cta {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
  padding: 48px 0;
  text-align: center;
}

.mid-cta .container {
  max-width: 800px;
}

.mid-cta-title {
  font-size: 22px;
  font-weight: 600;
  color: white;
  margin-bottom: 12px;
}

.mid-cta-text {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
}

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

.mid-cta .cta-btn-primary {
  background: white;
  color: var(--primary-blue);
  border-color: white;
}

.mid-cta .cta-btn-primary:hover {
  background: var(--gray-100);
  border-color: var(--gray-100);
}

.mid-cta .cta-btn-secondary {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.5);
}

.mid-cta .cta-btn-secondary:hover {
  border-color: white;
  background: rgba(255, 255, 255, 0.1);
}

/* Pricing */
.pricing-info {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 40px;
  margin-top: 32px;
}

.pricing-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 20px;
}

.pricing-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--gray-700);
}

.pricing-item::before {
  content: '✓';
  width: 20px;
  height: 20px;
  background: rgba(2, 79, 131, 0.1);
  color: var(--primary-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
}

.pricing-note {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--gray-200);
  font-size: 13px;
  color: var(--gray-500);
}

/* Flow */
.flow-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
}

.flow-step {
  flex: 1;
  min-width: 180px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 24px;
  position: relative;
}

.flow-step::after {
  content: '→';
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
  font-size: 18px;
}

.flow-step:last-child::after {
  display: none;
}

@media (max-width: 768px) {
  .flow-step::after {
    display: none;
  }
}

.flow-num {
  width: 28px;
  height: 28px;
  background: var(--primary-blue);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
}

.flow-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 8px;
}

.flow-desc {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.6;
}

/* Phase Notice */
.phase-notice {
  background: rgba(2, 79, 131, 0.04);
  border: 1px solid rgba(2, 79, 131, 0.15);
  border-radius: 12px;
  padding: 32px;
  margin-top: 32px;
}

.phase-notice-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-blue);
  margin-bottom: 12px;
}

.phase-notice p {
  font-size: 14px;
  color: var(--gray-700);
  line-height: 1.8;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--gray-100) 100%);
  text-align: center;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}

/* Responsive */
@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero-catch {
    font-size: 22px;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .cta-btn {
    width: 100%;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-btn {
    min-width: auto;
  }

  .flow-steps {
    flex-direction: column;
  }

  .flow-step {
    min-width: auto;
  }

  .risk-warning-box {
    flex-direction: column;
    text-align: center;
  }

  .mid-cta-buttons {
    flex-direction: column;
  }

  .mid-cta-buttons .cta-btn {
    width: 100%;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* =========================
   Desktop Dropdown Fix
   ========================= */
/* ドロップダウンメニューのホバー領域を拡張 */
nav .group > div[class*="absolute"] {
  padding-top: 0.5rem;
  margin-top: 0 !important;
}

/* ドロップダウンの内側コンテンツにスタイル適用 */
nav .group > div[class*="absolute"] > div {
  background: white;
  border: 1px solid #f3f4f6;
  border-radius: 0.5rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* ホバー時に確実に表示 */
nav .group:hover > div[class*="absolute"] {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
}