body {
  font-family: 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', sans-serif;
  background-color: #f8f8f8;
  color: #333;
  line-height: 1.8;
  margin: 0;
  padding: 40px 20px;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

h1 {
  font-size: 1.8rem;
  color: #1a1a1a;
  margin-bottom: 30px;
  border-left: 6px solid #a12128;
  padding-left: 12px;
}

p {
  margin-bottom: 24px;
  font-size: 1rem;
}

.link {
  font-weight: bold;
  margin-top: 20px;
}

.link a {
  color: #a12128;
  text-decoration: none;
}

.link a:hover {
  text-decoration: underline;
}

.signature {
  margin-top: 40px;
}

.footer {
  margin-top: 20px;
  font-style: normal;
  font-weight: bold;
  color: #555;
}