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

body {
  font-family: sans-serif;
  background: #050816;
  color: white;
  line-height: 1.7;
}

.hero {
  height: 60vh;
  background:
    linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.7)),
    url('https://images.unsplash.com/photo-1446776811953-b23d57bd21aa?q=80&w=1400&auto=format&fit=crop')
    center/cover;
    
  display: flex;
  align-items: center;
  justify-content: center;

  text-align: center;
  padding: 20px;
}

.overlay h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.overlay p {
  font-size: 1.1rem;
}

main {
  width: 90%;
  max-width: 900px;
  margin: auto;
  padding: 50px 0;
}

.card {
  background: #11182b;
  padding: 30px;
  border-radius: 20px;
  margin-bottom: 30px;

  box-shadow: 0 0 20px rgba(0,0,0,0.3);

  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

.card h2 {
  font-size: 1.5rem;
  margin-bottom: 15px;
}

.card p {
  margin-bottom: 25px;
  color: #c7d2e0;
}

.button {
  display: inline-block;

  padding: 12px 24px;

  background: #4ea3ff;
  color: white;

  text-decoration: none;

  border-radius: 10px;

  transition: 0.3s;
}

.button:hover {
  background: #78bbff;
}

footer {
  text-align: center;
  padding: 30px;
  color: #8b96aa;
}


.industry-map {
  margin-top: 60px;
  padding: 40px 20px;
  background: rgba(255,255,255,0.05);
  border-radius: 16px;
  text-align: center;
}

.industry-map h2 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.industry-map p {
  margin-bottom: 30px;
  line-height: 1.8;
}

.industry-map-image img {
  width: 100%;
  max-width: 900px;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(0,0,0,0.4);
}

.industry-map-button {
  margin-top: 25px;
}

.industry-map-button a {
  display: inline-block;
  padding: 12px 24px;
  background: #0b1e3d;
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  transition: 0.3s;
}

.industry-map-button a:hover {
  background: #163b73;
}


/* スマホ対応 */

@media (max-width: 768px) {

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

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

  .card {
    padding: 25px;
  }

  .card h2 {
    font-size: 1.3rem;
  }

}