/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: 'Noto Sans JP', sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fdfdfd;
}
a {
  text-decoration: none;
  color: #0066cc;
}
a:hover {
  text-decoration: underline;
}
header {
  background: linear-gradient(90deg, #001f3f, #0067a5);
  color: #ffffff;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
header .logo {
  font-size: 1.4rem;
  font-weight: 600;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 24px;
}
nav li {
  font-size: 1rem;
}
nav a {
  color: #ffffff;
  font-weight: 500;
}
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 20px;
}
section {
  margin-bottom: 60px;
}
section h2 {
  font-size: 1.8rem;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}
section h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: #0067a5;
}
.hero {
  position: relative;
  width: 100%;
  height: 360px;
  background-image: url('images/hero.jpg');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-align: center;
}
.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
}
.hero .hero-content {
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 10px;
}
.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
}
.intro {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
}
.intro img {
  flex: 1 1 320px;
  max-width: 100%;
  border-radius: 8px;
}
.intro .text {
  flex: 1 1 320px;
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}
.spec-table th,
.spec-table td {
  border: 1px solid #ddd;
  padding: 8px 12px;
  text-align: left;
}
.spec-table th {
  background-color: #f2f2f2;
  width: 30%;
}
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-top: 24px;
}
.step {
  background-color: #f7f7f7;
  padding: 16px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.step-number {
  font-size: 2rem;
  font-weight: 700;
  color: #0067a5;
  margin-bottom: 8px;
}
.points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}
.point {
  background-image: url('images/point-bg.png');
  background-size: cover;
  background-position: center;
  color: #333;
  padding: 24px;
  border-radius: 8px;
  min-height: 200px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.point h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
  color: #0067a5;
}
.scenes ul {
  list-style: disc inside;
  padding-left: 20px;
}
.video-container {
  position: relative;
  width: 100%;
  max-width: 800px; /* 動画の最大幅を指定 */
  height: 0;
  padding-bottom: 56.25%; /* アスペクト比 16:9 の場合 */
  margin: 0 auto; /* 中央揃えにする場合 */
}
.video-container .promo-video__player {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
footer {
  background-color: #001f3f;
  color: #fff;
  text-align: center;
  padding: 20px;
  font-size: 0.9rem;
}
@media (max-width: 600px) {
  header {
    flex-direction: column;
    align-items: flex-start;
  }
  nav ul {
    flex-wrap: wrap;
    gap: 12px;
  }
  .hero {
    height: 260px;
  }
  .hero h1 {
    font-size: 2.2rem;
  }
}