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

:root {
  --primary-color: #0d5c63;
  --primary-light: #148f99;
  --primary-dark: #094348;
  --secondary-color: #f8b739;
  --accent-color: #e85a4f;
  --text-dark: #2d3436;
  --text-light: #636e72;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --border-color: #e0e0e0;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
}

* {
  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-dark);
  background-color: var(--bg-white);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

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

ul {
  list-style: none;
}

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

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
}

.logo img {
  height: 40px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-menu a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dark);
  padding: 8px 0;
  position: relative;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
}

.nav-menu a:hover::after {
  width: 100%;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--secondary-color);
  color: var(--text-dark);
}

.btn-secondary:hover {
  background: #e5a82d;
  transform: translateY(-2px);
}

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

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

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

.mobile-menu-btn span {
  width: 25px;
  height: 3px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

.hero {
  margin-top: 70px;
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  opacity: 0.15;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 650px;
  padding: 60px 20px;
  color: var(--bg-white);
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 24px;
}

.hero p {
  font-size: 1.15rem;
  line-height: 1.8;
  margin-bottom: 32px;
  opacity: 0.95;
}

.hero .btn-primary {
  background: var(--secondary-color);
  color: var(--text-dark);
}

.hero .btn-primary:hover {
  background: #e5a82d;
}

.page-hero {
  margin-top: 70px;
  padding: 80px 20px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  text-align: center;
  color: var(--bg-white);
}

.page-hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

section {
  padding: 80px 0;
}

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

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto;
}

.bg-light {
  background: var(--bg-light);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--bg-white);
  padding: 35px 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--primary-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--bg-white);
  font-size: 1.5rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
}

.before-after {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
  margin-top: 40px;
}

.ba-item {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.ba-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.ba-images img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.ba-content {
  padding: 25px;
}

.ba-content h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-dark);
}

.ba-content p {
  font-size: 0.9rem;
  color: var(--text-light);
}

.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.testimonial-card {
  background: var(--bg-white);
  padding: 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--primary-color);
}

.testimonial-card p {
  font-size: 1rem;
  color: var(--text-dark);
  line-height: 1.8;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 15px;
}

.testimonial-author img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

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

.cta-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  padding: 80px 20px;
  text-align: center;
  color: var(--bg-white);
}

.cta-section h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.product-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.product-card-content {
  padding: 25px;
}

.product-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-dark);
}

.product-card p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 15px;
}

.product-card .price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-color);
}

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

.faq-item {
  background: var(--bg-white);
  margin-bottom: 15px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

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

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

.faq-answer {
  padding: 0 25px 20px;
  color: var(--text-light);
  line-height: 1.8;
}

.contact-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.contact-form {
  background: var(--bg-white);
  padding: 40px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.contact-form h3 {
  font-size: 1.5rem;
  margin-bottom: 25px;
  color: var(--text-dark);
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(13, 92, 99, 0.1);
}

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

.contact-info {
  padding: 40px;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 25px;
  color: var(--text-dark);
}

.info-item {
  display: flex;
  gap: 15px;
  margin-bottom: 25px;
}

.info-icon {
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-white);
  flex-shrink: 0;
}

.info-content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--text-dark);
}

.info-content p,
.info-content a {
  font-size: 0.95rem;
  color: var(--text-light);
}

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

.company-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
}

.company-card {
  background: var(--bg-white);
  padding: 35px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.company-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-dark);
  padding-bottom: 15px;
  border-bottom: 2px solid var(--primary-color);
}

.info-table {
  width: 100%;
}

.info-table tr {
  border-bottom: 1px solid var(--border-color);
}

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

.info-table th,
.info-table td {
  padding: 12px 0;
  text-align: left;
}

.info-table th {
  font-weight: 600;
  color: var(--text-dark);
  width: 120px;
}

.info-table td {
  color: var(--text-light);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 30px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--primary-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding-left: 30px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -36px;
  top: 5px;
  width: 15px;
  height: 15px;
  background: var(--primary-color);
  border-radius: 50%;
  border: 3px solid var(--bg-white);
  box-shadow: var(--shadow-sm);
}

.timeline-item h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-dark);
}

.timeline-item p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
}

.footer {
  background: var(--text-dark);
  color: var(--bg-white);
  padding: 60px 0 30px;
}

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

.footer-brand h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
}

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.8;
  line-height: 1.7;
}

.footer-links h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

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

.footer-links a {
  font-size: 0.9rem;
  opacity: 0.8;
}

.footer-links a:hover {
  opacity: 1;
  color: var(--secondary-color);
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.7;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  counter-reset: step;
}

.step-card {
  background: var(--bg-white);
  padding: 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.step-card::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: -15px;
  left: 25px;
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  color: var(--bg-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.step-card h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
  margin-top: 10px;
  color: var(--text-dark);
}

.step-card p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
}

.image-text-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.image-text-section.reverse {
  direction: rtl;
}

.image-text-section.reverse > * {
  direction: ltr;
}

.image-text-section img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.image-text-content h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-dark);
}

.image-text-content p {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 25px;
}

.tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 15px;
}

.tag {
  background: var(--bg-light);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--primary-color);
  font-weight: 500;
}

.wholesale-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.wholesale-table th,
.wholesale-table td {
  padding: 18px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

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

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

.wholesale-table tr:hover td {
  background: var(--bg-light);
}

.wholesale-table img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.case-studies {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.case-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.case-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.case-card-content {
  padding: 25px;
}

.case-card h4 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.case-card p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
}

@media (max-width: 992px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow-md);
  }

  .nav-menu.active {
    display: flex;
  }

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

  .hero h1 {
    font-size: 2.2rem;
  }

  .contact-section {
    grid-template-columns: 1fr;
  }

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

  .image-text-section {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .image-text-section.reverse {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .section-header h2 {
    font-size: 1.8rem;
  }

  .hero {
    min-height: 70vh;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

  .wholesale-table {
    font-size: 0.9rem;
  }

  .wholesale-table th,
  .wholesale-table td {
    padding: 12px 10px;
  }
}