body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  background: #f4f7fb;
  color: #333;
}

.hero {
  background: url("images/hero.png") center center/cover no-repeat;
  height: 500px;

  display: flex;
  flex-direction: column;

  justify-content: center;
  align-items: center;

  color: white;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin: 0;
}

.hero p {
  font-size: 1.2rem;
}

.content {
  max-width: 1000px;
  margin: 40px auto;
  padding: 30px;

  background: white;
  border-radius: 15px;

  box-shadow: 0 5px 20px rgba(0,0,0,.08);
}

.content img {
  width: 100%;
  border-radius: 10px;
}

.content h2 {
  color: #003366;
  border-left: 6px solid #0066cc;
  padding-left: 15px;
}

.btn {
  display: inline-block;

  background: #003366;
  color: white;

  padding: 15px 25px;

  text-decoration: none;
  border-radius: 10px;

  margin-right: 10px;
}

.btn:hover {
  background: #0055aa;
}

footer {
  background: #001f3f;
  color: white;

  text-align: center;
  padding: 30px;
}