@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;600;700&display=swap");

:root {
  --primary-color: #1e3a5f;
  --secondary-color: #2c5282;
  --accent-color: #38b2ac;
  --text-color: #2d3748;
  --light-text: #718096;
  --bg-color: #f7fafc;
  --white: #ffffff;
  --border-color: #e2e8f0;
  --success-color: #48bb78;
  --warning-color: #ed8936;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-color);
  background-color: var(--bg-color);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo img {
  height: 50px;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 30px;
}

nav ul li a {
  font-weight: 500;
  padding: 10px 0;
  position: relative;
}

nav ul li a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: width 0.3s ease;
}

nav ul li a:hover::after {
  width: 100%;
}

.nav-cta {
  background-color: var(--accent-color);
  color: var(--white) !important;
  padding: 10px 25px !important;
  border-radius: 25px;
}

.nav-cta:hover {
  background-color: var(--secondary-color);
}

.nav-cta::after {
  display: none !important;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 10px;
}

.mobile-menu-btn span {
  width: 25px;
  height: 3px;
  background-color: var(--primary-color);
  transition: transform 0.3s ease;
}

.hero {
  position: relative;
  height: 80vh;
  min-height: 500px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(30, 58, 95, 0.9) 0%, rgba(44, 82, 130, 0.7) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  color: var(--white);
  max-width: 700px;
  padding: 0 20px;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 30px;
  opacity: 0.95;
}

.btn {
  display: inline-block;
  padding: 15px 35px;
  border-radius: 30px;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: #2c9a90;
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(56, 178, 172, 0.4);
  color: var(--white);
}

.btn-secondary {
  background-color: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

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

section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 2.2rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.section-title p {
  color: var(--light-text);
  max-width: 700px;
  margin: 0 auto;
}

.features {
  background-color: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background-color: var(--bg-color);
  padding: 40px 30px;
  border-radius: 15px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background-color: var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon img {
  width: 40px;
  height: 40px;
}

.feature-card h3 {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.feature-card p {
  color: var(--light-text);
}

.how-to-use {
  background-color: var(--bg-color);
}

.steps-container {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.step {
  display: flex;
  align-items: center;
  gap: 40px;
  background-color: var(--white);
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.step:nth-child(even) {
  flex-direction: row-reverse;
}

.step-number {
  width: 60px;
  height: 60px;
  background-color: var(--accent-color);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-content h3 {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.step-image {
  width: 300px;
  height: 200px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
}

.testimonials {
  background-color: var(--white);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.testimonial-card {
  background-color: var(--bg-color);
  padding: 30px;
  border-radius: 15px;
  position: relative;
}

.testimonial-card::before {
  content: '"';
  font-size: 4rem;
  color: var(--accent-color);
  opacity: 0.3;
  position: absolute;
  top: 10px;
  left: 20px;
  line-height: 1;
}

.testimonial-content {
  position: relative;
  z-index: 1;
}

.testimonial-image {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 20px;
}

.testimonial-text {
  font-style: italic;
  margin-bottom: 20px;
  color: var(--text-color);
}

.testimonial-author {
  font-weight: 600;
  color: var(--primary-color);
}

.testimonial-role {
  font-size: 0.9rem;
  color: var(--light-text);
}

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

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--white);
  margin-bottom: 15px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.faq-question {
  padding: 20px 25px;
  font-weight: 600;
  color: var(--primary-color);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--accent-color);
}

.faq-item.active .faq-question::after {
  content: "−";
}

.faq-answer {
  padding: 0 25px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
  padding: 0 25px 20px;
  max-height: 500px;
}

.cta-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: var(--white);
  text-align: center;
}

.cta-section h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.cta-section p {
  max-width: 700px;
  margin: 0 auto 30px;
  opacity: 0.9;
}

.cta-image {
  max-width: 400px;
  border-radius: 15px;
  margin-top: 40px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 60px 0 30px;
}

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

.footer-section h4 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: var(--accent-color);
}

.footer-section p {
  opacity: 0.8;
  margin-bottom: 15px;
}

.footer-section ul {
  list-style: none;
}

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

.footer-section ul li a {
  color: var(--white);
  opacity: 0.8;
}

.footer-section ul li a:hover {
  opacity: 1;
  color: var(--accent-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  opacity: 0.7;
  font-size: 0.9rem;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--white);
  padding: 20px;
  box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  display: none;
}

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

.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.cookie-content p {
  flex: 1;
}

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

.cookie-btn {
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  font-weight: 500;
  border: none;
}

.cookie-accept {
  background-color: var(--accent-color);
  color: var(--white);
}

.cookie-reject {
  background-color: var(--border-color);
  color: var(--text-color);
}

.page-hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  padding: 100px 0 60px;
  text-align: center;
  color: var(--white);
}

.page-hero h1 {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.page-hero p {
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

.content-section {
  background-color: var(--white);
  padding: 60px 0;
}

.content-section:nth-child(even) {
  background-color: var(--bg-color);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  align-items: center;
}

.product-image {
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.product-info h3 {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.product-info p {
  margin-bottom: 15px;
  color: var(--light-text);
}

.product-features {
  list-style: none;
  margin: 20px 0;
}

.product-features li {
  padding: 10px 0;
  padding-left: 30px;
  position: relative;
}

.product-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}

.before-after {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

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

.ba-item img {
  border-radius: 10px;
  margin-bottom: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.ba-item h4 {
  color: var(--primary-color);
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--white);
  padding: 40px;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--primary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.contact-info {
  margin-top: 40px;
  text-align: center;
}

.contact-info h3 {
  color: var(--primary-color);
  margin-bottom: 20px;
}

.contact-details {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

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

.contact-item strong {
  display: block;
  color: var(--primary-color);
  margin-bottom: 5px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-item {
  background-color: var(--white);
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-color);
}

.stat-label {
  color: var(--light-text);
  margin-top: 10px;
}

.legal-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

.legal-content h2 {
  color: var(--primary-color);
  margin: 40px 0 20px;
  font-size: 1.5rem;
}

.legal-content h3 {
  color: var(--secondary-color);
  margin: 30px 0 15px;
  font-size: 1.2rem;
}

.legal-content p {
  margin-bottom: 15px;
}

.legal-content ul {
  margin: 15px 0;
  padding-left: 30px;
}

.legal-content ul li {
  margin-bottom: 10px;
}

.legal-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}

.legal-content table th,
.legal-content table td {
  padding: 15px;
  border: 1px solid var(--border-color);
  text-align: left;
}

.legal-content table th {
  background-color: var(--bg-color);
  color: var(--primary-color);
  font-weight: 600;
}

.case-study {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 30px;
  background-color: var(--white);
  padding: 30px;
  border-radius: 15px;
  margin-bottom: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.case-study img {
  border-radius: 10px;
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.case-study h4 {
  color: var(--primary-color);
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.price-table {
  width: 100%;
  border-collapse: collapse;
  margin: 30px 0;
  background-color: var(--white);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.price-table th,
.price-table td {
  padding: 20px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.price-table th {
  background-color: var(--primary-color);
  color: var(--white);
}

.price-table tr:hover {
  background-color: var(--bg-color);
}

.review-form {
  background-color: var(--bg-color);
  padding: 40px;
  border-radius: 15px;
  margin-top: 40px;
}

.review-form h3 {
  color: var(--primary-color);
  margin-bottom: 20px;
}

.rating-input {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.rating-input label {
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--border-color);
  transition: color 0.3s ease;
}

.rating-input label:hover,
.rating-input input:checked ~ label {
  color: var(--warning-color);
}

.progress-bar {
  background-color: var(--border-color);
  border-radius: 10px;
  height: 10px;
  overflow: hidden;
  margin: 10px 0;
}

.progress-fill {
  height: 100%;
  background-color: var(--accent-color);
  border-radius: 10px;
  transition: width 0.5s ease;
}

@media (max-width: 992px) {
  .features-grid,
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    flex-direction: column;
    padding: 20px;
    gap: 15px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  }

  nav ul.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .features-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .step {
    flex-direction: column !important;
    text-align: center;
  }

  .step-image {
    width: 100%;
  }

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

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .cookie-content {
    flex-direction: column;
    text-align: center;
  }

  .before-after {
    grid-template-columns: 1fr;
  }

  .case-study {
    grid-template-columns: 1fr;
  }

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

  .contact-details {
    flex-direction: column;
    gap: 20px;
  }
}