:root {
  --primary: #1e40af;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --accent: #0284c7;
  --dark: #0f172a;
  --slate: #334155;
  --muted: #64748b;
  --light-bg: #f8fafc;
  --card-bg: #ffffff;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --font: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

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

body {
  font-family: var(--font);
  color: var(--slate);
  background-color: #ffffff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-link img {
  height: 44px;
  width: auto;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
  align-items: center;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--slate);
}

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

.btn-header {
  padding: 10px 20px;
  background-color: var(--primary);
  color: #ffffff !important;
  font-weight: 700;
  border-radius: 8px;
  font-size: 0.9rem;
}

.btn-header:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  background-color: #dbeafe;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 50px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 900;
  color: var(--dark);
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--slate);
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 32px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 36px;
  background-color: var(--primary);
  color: #ffffff !important;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: var(--radius);
  box-shadow: 0 4px 14px rgba(30, 64, 175, 0.3);
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(30, 64, 175, 0.4);
}

.hero-trust-badges {
  display: flex;
  gap: 24px;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid #cbd5e1;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--slate);
}

.trust-item svg {
  width: 20px;
  height: 20px;
  fill: var(--primary);
}

.hero-image-box {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-image-box img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

/* Value Props / Benefits */
.section-padding {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}

.section-subtitle {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.85rem;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.25rem;
  color: var(--dark);
  font-weight: 800;
  line-height: 1.35;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.benefit-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.3s ease;
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: #bfdbfe;
}

.benefit-icon {
  width: 56px;
  height: 56px;
  background-color: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.benefit-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 2;
}

.benefit-card h3 {
  font-size: 1.3rem;
  color: var(--dark);
  margin-bottom: 14px;
  font-weight: 700;
}

.benefit-card p {
  font-size: 0.95rem;
  color: var(--slate);
  line-height: 1.75;
}

/* Features Highlight Section */
.features-section {
  background-color: var(--light-bg);
}

.feature-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 60px;
}

.feature-split.reverse {
  direction: rtl;
}

.feature-split.reverse .feature-text {
  direction: ltr;
}

.feature-img {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.feature-img img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.feature-text h3 {
  font-size: 1.8rem;
  color: var(--dark);
  margin-bottom: 18px;
  font-weight: 800;
}

.feature-text p {
  font-size: 1.05rem;
  margin-bottom: 20px;
  color: var(--slate);
}

.feature-list {
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  font-size: 0.98rem;
  font-weight: 600;
}

.feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 900;
}

/* Process Section */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  position: relative;
}

.process-step {
  width: 44px;
  height: 44px;
  background-color: var(--primary);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  margin: 0 auto 20px;
}

.process-card h4 {
  font-size: 1.15rem;
  color: var(--dark);
  margin-bottom: 12px;
  font-weight: 700;
}

.process-card p {
  font-size: 0.9rem;
  color: var(--slate);
}

/* Testimonials */
.testimonials-section {
  background-color: var(--light-bg);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.testimonial-card {
  background: #ffffff;
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-body {
  font-size: 0.98rem;
  color: var(--slate);
  margin-bottom: 24px;
  font-style: italic;
  line-height: 1.8;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  background-color: #cbd5e1;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--dark);
}

.author-info h5 {
  font-size: 0.95rem;
  color: var(--dark);
  font-weight: 700;
}

.author-info span {
  font-size: 0.82rem;
  color: var(--muted);
}

/* About Section */
.about-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--shadow);
}

.about-text h3 {
  font-size: 2rem;
  color: var(--dark);
  margin-bottom: 20px;
  font-weight: 800;
}

.about-text p {
  margin-bottom: 16px;
  font-size: 1rem;
  color: var(--slate);
  line-height: 1.8;
}

/* FAQ Section */
.faq-grid {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-answer {
  padding: 0 24px 20px;
  font-size: 0.95rem;
  color: var(--slate);
  line-height: 1.7;
  display: none;
}

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

.faq-toggle-icon {
  font-size: 1.4rem;
  transition: transform 0.2s ease;
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(45deg);
}

/* Lead Form Section */
.form-section {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  padding: 90px 0;
}

.form-wrapper {
  max-width: 640px;
  margin: 0 auto;
  background: #ffffff;
  color: var(--slate);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.form-header {
  text-align: center;
  margin-bottom: 32px;
}

.form-header h2 {
  font-size: 1.8rem;
  color: var(--dark);
  font-weight: 800;
  margin-bottom: 10px;
}

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

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--muted);
  cursor: pointer;
}

.form-checkbox-label input {
  margin-top: 3px;
}

.btn-submit {
  width: 100%;
  padding: 16px;
  background-color: var(--primary);
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.btn-submit:hover {
  background-color: var(--primary-hover);
}

.form-status {
  margin-top: 16px;
  padding: 12px;
  border-radius: 6px;
  display: none;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
}

.form-status.success {
  background-color: #dcfce7;
  color: #166534;
  display: block;
}

.form-status.error {
  background-color: #fee2e2;
  color: #991b1b;
  display: block;
}

/* Footer */
footer {
  background-color: var(--dark);
  color: #94a3b8;
  padding: 60px 0 30px;
  font-size: 0.9rem;
  border-top: 1px solid #1e293b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand img {
  height: 38px;
  margin-bottom: 16px;
}

.footer-brand p {
  line-height: 1.7;
  max-width: 360px;
}

.footer-title {
  color: #ffffff;
  font-weight: 700;
  margin-bottom: 16px;
  font-size: 1rem;
}

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

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

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

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

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid #1e293b;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 24px;
  right: 24px;
  max-width: 420px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  z-index: 9999;
  display: none;
}

.cookie-banner.show {
  display: block;
}

.cookie-banner p {
  font-size: 0.88rem;
  color: var(--slate);
  margin-bottom: 16px;
  line-height: 1.6;
}

.cookie-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.btn-cookie-accept {
  padding: 8px 18px;
  background-color: var(--primary);
  color: #ffffff;
  border: none;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
}

.btn-cookie-decline {
  padding: 8px 18px;
  background-color: #e2e8f0;
  color: var(--slate);
  border: none;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid, .feature-split, .about-box, .footer-grid {
    grid-template-columns: 1fr;
  }
  .feature-split.reverse {
    direction: ltr;
  }
  .benefits-grid, .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .nav-menu {
    display: none;
  }
  .hero-title {
    font-size: 2rem;
  }
  .benefits-grid, .testimonials-grid, .process-grid {
    grid-template-columns: 1fr;
  }
  .form-wrapper {
    padding: 24px;
  }
}