:root {
  --primary-color: #2E7D32;
  --secondary-color: #00BFA5;
  --accent-color: #FFA726;
  --text-dark: #1A1A1A;
  --text-light: #666666;
  --bg-light: #F5F5F5;
  --white: #FFFFFF;
  --border-color: #E0E0E0;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.8;
  color: var(--text-dark);
  background-color: var(--white);
  font-size: 16px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

header {
  background: var(--white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 3px solid var(--primary-color);
}

header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
  max-width: 900px;
  justify-content: center;
}

.nav-item a {
  font-weight: 500;
  color: var(--text-dark);
  text-decoration: none;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  transition: var(--transition);
  font-size: 0.9rem;
  white-space: nowrap;
}

.nav-item a:hover,
.nav-item.active a {
  background: var(--primary-color);
  color: var(--white);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--primary-color);
  border-radius: 3px;
  transition: var(--transition);
}

.hero {
  position: relative;
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  max-width: 900px;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
  line-height: 1.3;
}

.hero-subtitle {
  font-size: 1.4rem;
  font-weight: 400;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.section {
  padding: 5rem 0;
}

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

.section-header {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-light);
}

.content-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.content-wrapper p {
  font-size: 1.1rem;
  line-height: 2;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

.stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.stat-item {
  text-align: center;
  padding: 2rem;
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-light);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.news-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.news-card-content {
  padding: 1.5rem;
}

.news-card h3 {
  font-size: 1.2rem;
  color: var(--primary-color);
  margin-bottom: 0.8rem;
  line-height: 1.4;
}

.news-card p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2.5rem;
  margin: 3rem 0;
}

.card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-decoration: none;
  color: var(--text-dark);
  border: 1px solid var(--border-color);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
}

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

.card-content {
  padding: 2rem;
}

.card-content h3 {
  font-size: 1.4rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  line-height: 1.4;
}

.card-content p {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.7;
}

.two-column-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  margin: 3rem 0;
}

.main-content {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.main-content h2 {
  font-size: 2rem;
  color: var(--primary-color);
  margin: 2.5rem 0 1rem 0;
  padding-bottom: 0.8rem;
  border-bottom: 3px solid var(--primary-color);
}

.main-content h3 {
  font-size: 1.5rem;
  color: var(--secondary-color);
  margin: 2rem 0 1rem 0;
}

.main-content p {
  font-size: 1.05rem;
  line-height: 2;
  margin-bottom: 1.5rem;
}

.main-content ul,
.main-content ol {
  margin: 1.5rem 0 1.5rem 2rem;
}

.main-content li {
  margin-bottom: 0.8rem;
  line-height: 1.8;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-widget {
  background: var(--white);
  padding: 1.8rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

.sidebar-widget h3 {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 1.2rem;
  padding-bottom: 0.8rem;
  border-bottom: 2px solid var(--primary-color);
}

.sidebar-widget ul {
  list-style: none;
}

.sidebar-widget li {
  margin-bottom: 0.8rem;
}

.sidebar-widget a {
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
  display: block;
  padding: 0.5rem 0;
}

.sidebar-widget a:hover {
  color: var(--primary-color);
  padding-left: 0.5rem;
}

.ad-space {
  background: var(--bg-light);
  padding: 1rem;
  text-align: center;
  border-radius: 8px;
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
}

footer {
  background: var(--text-dark);
  color: var(--white);
  padding: 3rem 0 1.5rem 0;
  margin-top: 5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  color: var(--secondary-color);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

.footer-section p,
.footer-section a {
  color: #CCCCCC;
  text-decoration: none;
  line-height: 2;
  display: block;
}

.footer-section a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #444;
  color: #999;
}

@media (max-width: 1024px) {
  .two-column-layout {
    grid-template-columns: 1fr;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 2rem;
    box-shadow: var(--shadow);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .hamburger {
    display: flex;
  }

  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .hero {
    height: 400px;
  }

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

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .card-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }

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

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

  .section {
    padding: 3rem 0;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .main-content,
  .sidebar-widget {
    padding: 1.5rem;
  }

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