@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&family=Noto+Sans+JP:wght@400;600;800&display=swap');

:root {
  --primary-color: #0d2b52;
  --secondary-color: #2b6cb0;
  --accent-color: #f6ad55;
  --accent-hover: #dd6b20;
  --text-main: #2d3748;
  --text-light: #718096;
  --bg-color: #f7fafc;
  --white: #ffffff;
  --danger: #e53e3e;
  --radius: 8px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s ease;
}

/* Reset & Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  color: var(--text-main);
  background-color: var(--bg-color);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: var(--secondary-color); transition: var(--transition); }
a:hover { color: var(--primary-color); }
ul { list-style: none; }

/* PR Label (Legal Compliance) */
.pr-banner {
  background-color: #1a202c;
  color: #cbd5e0;
  text-align: center;
  padding: 6px 0;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1000;
}

/* Header & Navigation */
header {
  background-color: var(--white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 999;
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo { font-size: 1.5rem; font-weight: 800; color: var(--primary-color); }
.logo span { color: var(--secondary-color); }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { font-weight: 600; color: var(--text-main); }
.nav-links a:hover { color: var(--secondary-color); }

/* Mobile Menu */
.menu-toggle { display: none; font-size: 1.5rem; cursor: pointer; color: var(--primary-color); border: none; background: transparent;}

/* CTA Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 800;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-size: 1.1rem;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
  color: var(--white);
  box-shadow: var(--shadow);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: var(--white);
}

/* Layout Utilities */
.container { max-width: 1000px; margin: 0 auto; padding: 4rem 2rem; }
.text-center { text-align: center; }
.section-title { font-size: 2.5rem; color: var(--primary-color); margin-bottom: 1rem; font-weight: 800; }
.section-subtitle { font-size: 1.1rem; color: var(--text-light); margin-bottom: 3rem; }

/* Hero Section */
.hero {
  display: flex;
  align-items: center;
  gap: 3rem;
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  min-height: 80vh;
}
.hero-content { flex: 1; }
.hero-badge {
  display: inline-block;
  background-color: #ebf8ff;
  color: var(--secondary-color);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.hero-title { font-size: 3.5rem; line-height: 1.2; margin-bottom: 1.5rem; color: var(--primary-color); font-weight: 800;}
.hero-title span { color: var(--secondary-color); }
.hero-desc { font-size: 1.2rem; margin-bottom: 2.5rem; color: var(--text-main); line-height: 1.8; }
.hero-image-wrapper { flex: 1; position: relative; }
.hero-image { border-radius: 20px; box-shadow: var(--shadow-lg); object-fit: cover; }
.hero-floating-card {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--white);
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 1rem;
}
.hero-floating-card .value { font-size: 2rem; font-weight: 800; color: var(--danger); line-height: 1; }
.hero-floating-card .label { font-size: 0.85rem; font-weight: 600; color: var(--text-light); }

/* Features Section */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.feature-card {
  background: var(--white);
  padding: 2.5rem 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
}
.feature-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); }
.feature-icon { font-size: 3rem; color: var(--secondary-color); margin-bottom: 1.5rem; }
.feature-title { font-size: 1.3rem; margin-bottom: 1rem; color: var(--primary-color); }

/* Standard Content Page */
.page-header { background: var(--primary-color); color: var(--white); padding: 4rem 2rem; text-align: center; }
.page-header h1 { font-size: 2.5rem; margin-bottom: 0.5rem; }
.page-header p { color: #a0aec0; }
.content-area { background: var(--white); padding: 3rem; border-radius: var(--radius); box-shadow: var(--shadow); margin-top: -2rem; position: relative; z-index: 10; }
.content-area h2 { display:table; color: var(--primary-color); margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 3px solid var(--secondary-color); }
.content-area h3 { color: var(--text-main); margin: 1.5rem 0 1rem; border-left: 4px solid var(--accent-color); padding-left: 10px; }
.content-area p { margin-bottom: 1.5rem; }

/* Ad Area */
.ad-banner { margin: 3rem 0; text-align: center; padding: 2rem; background: #e2e8f0; border-radius: var(--radius); border: 2px dashed #cbd5e0; }
.ad-banner span { font-size: 0.8rem; color: #718096; display: block; margin-bottom: 0.5rem; }

/* Footer */
footer { background: var(--primary-color); color: var(--white); padding: 4rem 2rem 2rem; text-align: center; }
.footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 1.5rem; margin-bottom: 2rem; }
.footer-links a { color: #cbd5e0; }
.footer-links a:hover { color: var(--white); }
.footer-copyright { color: #718096; font-size: 0.9rem; }

/* Animations */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.fade-in.appear { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

/* Responsiveness */
@media (max-width: 768px) {
  .hero { flex-direction: column; text-align: center; padding: 3rem 1.5rem; }
  .hero-title { font-size: 2.5rem; }
  .nav-links {
    display: none; width: 100%; position: absolute; top: 100%; left: 0;
    background: var(--white); flex-direction: column; padding: 1rem 0; box-shadow: var(--shadow); text-align: center;
  }
  .nav-links.active { display: flex; }
  .menu-toggle { display: block; }
  .hero-floating-card { left: 50%; transform: translateX(-50%); bottom: -30px; width: 90%; justify-content: center;}
  .content-area { padding: 2rem 1.5rem; }
}