body {
  font-family: "Noto Sans JP", sans-serif;
  color: #333;
  background-color: #f8f7f5;
  margin: 0;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 60px;
  background-color: #fff;
  border-bottom: 1px solid #ddd;
}

.logo h1 {
  font-size: 18px;
  line-height: 1.4;
}

.nav ul {
  display: flex;
  gap: 30px;
  list-style: none;
}

.nav a {
  text-decoration: none;
  color: #333;
}

.nav a.active {
  border-bottom: 1px solid #4b6043;
}

.content {
  padding: 60px;
  max-width: 900px;
  margin: 0 auto;
}

.intro {
  text-align: left;
  margin-bottom: 40px;
}

.intro h2 {
  font-size: 28px;
  letter-spacing: 2px;
  margin-bottom: 20px;
  border-bottom: 1px solid #4b6043;
  display: inline-block;
  padding-bottom: 5px;
}

.contact-form {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

form {
  flex: 1 1 55%;
  display: flex;
  flex-direction: column;
}

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

.required {
  color: #4b6043;
  font-size: 12px;
  margin-left: 5px;
}

input, textarea {
  margin-top: 8px;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 14px;
}

textarea {
  height: 150px;
  resize: vertical;
}

.btn {
  margin-top: 30px;
  padding: 12px 20px;
  background-color: #4b6043;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  align-self: flex-start;
}

.contact-info {
  flex: 1 1 35%;
  background-color: #f0f0ee;
  padding: 20px;
  border-radius: 6px;
}

.contact-info h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.contact-info .email {
  font-weight: bold;
  font-size: 16px;
  color: #4b6043;
}

.footer {
  background-color: #4b6043;
  color: #fff;
  text-align: center;
  padding: 30px;
}

.footer-nav ul {
  display: flex;
  justify-content: center;
  gap: 20px;
  list-style: none;
  padding: 0;
  margin: 10px 0;
}

.footer-nav a {
  color: #fff;
  text-decoration: none;
}

.footer-logo img {
  width: 40px;
  vertical-align: middle;
}

.footer-logo p {
  margin: 5px 0;
  font-size: 14px;
}

.copyright {
  font-size: 12px;
  margin-top: 10px;
}