:root {
  --primary-color: #003366; /* 信頼のネイビー */
  --secondary-color: #ff9900; /* 活気のオレンジ（ロゴ意識） */
  --accent-color: #e6f7ff;
  --text-main: #2c3e50;
  --text-light: #7f8c8d;
  --bg-light: #f7f9fc;
  --white: #ffffff;
  --success: #27ae60;
  --shadow: 0 15px 35px rgba(0,0,0,0.08);
  --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

body {
  font-family: 'Outfit', 'Noto Sans JP', sans-serif;
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
  background-color: var(--white);
}

/* 法令順守: PRバッジ */
.legal-banner {
  background: #fff5eb;
  color: #d46b08;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
  padding: 10px;
  border-bottom: 1px solid #ffe7ba;
  position: relative;
  z-index: 2000;
}

/* Header */
header {
  height: 80px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(15px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 15px rgba(0,0,0,0.03);
}

.logo {
  font-size: 26px;
  font-weight: 900;
  color: var(--primary-color);
  text-decoration: none;
}

.logo span {
  color: var(--secondary-color);
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--secondary-color);
}

/* Hero Section */
.hero {
  padding: 80px 5%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 50px;
  background: radial-gradient(circle at top right, #eef2f3 0%, #fff 70%);
}

.hero-tag {
  display: inline-block;
  padding: 5px 15px;
  background: var(--accent-color);
  color: var(--primary-color);
  border-radius: 50px;
  font-weight: 800;
  font-size: 13px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  line-height: 1.15;
  font-weight: 900;
  margin-bottom: 25px;
}

.hero-title span {
  color: var(--secondary-color);
}

.hero-p {
  font-size: 1.15rem;
  color: var(--text-light);
  margin-bottom: 40px;
  max-width: 550px;
}

.cta-group {
  display: flex;
  gap: 20px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 18px 35px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--secondary-color);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(255, 153, 0, 0.25);
}

.btn-primary:hover {
  transform: translateY(-4px);
  background: #e68a00;
  box-shadow: 0 12px 25px rgba(255, 153, 0, 0.4);
}

.hero-image {
  position: relative;
}

.hero-image img {
  width: 100%;
  border-radius: 30px;
  box-shadow: var(--shadow);
}

/* Feature Cards */
.section {
  padding: 100px 5%;
}

.section-head {
  text-align: center;
  margin-bottom: 70px;
}

.section-head h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 15px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
}

.card {
  padding: 50px 40px;
  background: var(--white);
  border-radius: 20px;
  border: 1px solid #f0f0f0;
  transition: var(--transition);
  text-align: center;
}

.card:hover {
  transform: translateY(-10px);
  border-color: var(--secondary-color);
  box-shadow: var(--shadow);
}

.card-icon {
  font-size: 3.5rem;
  margin-bottom: 25px;
  display: block;
}

/* Pack Display */
.pack-item {
  background: var(--bg-light);
  border-radius: 24px;
  padding: 40px;
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 30px;
}

.pack-info {
  flex: 1;
}

.price-tag {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary-color);
}

.price-unit {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-light);
}

/* Footer */
footer {
  background: var(--primary-color);
  color: var(--white);
  padding: 80px 5% 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 50px;
  margin-bottom: 50px;
}

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

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: #bdc3c7;
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--white);
}

.copy-text {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 40px;
  text-align: center;
  font-size: 13px;
  color: #7f8c8d;
}

/* Responsive */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-p {
    margin: 0 auto 40px;
  }
  .cta-group {
    justify-content: center;
  }
  .pack-item {
    flex-direction: column;
  }
}