/* 全体のスタイル */
body, html {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: 'Arial', sans-serif;
}

.page-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #f0f8ff; /* 淡い青色の背景 */
}

.container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 20px;
  background-color: #ffffff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-radius: 10px;
}

.subheading {
  color: #007BFF; /* 青色 */
  font-size: 2.5em;
  font-weight: bold;
  margin-bottom: 20px;
}

.link {
  display: inline-block;
  padding: 15px 30px;
  color: #ffffff;
  background-color: #007BFF; /* メインの青色 */
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s, transform 0.3s;
  font-size: 1.2em;
  margin-top: 20px;
}

.link:hover {
  background-color: #0056b3; /* リンクホバー時の色 */
  transform: scale(1.05);
}