header {
  position: fixed; /* 画面上部に固定 */
  top: 0;
  left: 0;
  width: 100%; /* 画面幅いっぱいに広げる */
  min-height: 75px;
  padding: 0px 20px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: #8b4513;
  box-sizing: border-box;
  z-index: 1000; /* 他要素より前面に */
}
.nav-link {
  text-decoration: none;
  color: black; /* リンクの色を設定 */
}

#nav-bar {
  display: flex;
  justify-content: space-around; /* ナビゲーションリンクを均等に配置 */
  width: 100%;
  justify-content: right;
  gap: 20px;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 0;
  color: #333;
}
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 100px 0 20px 0;
}

header img {
  max-width: 150px;
}

.nav-link {
  color: white;
  text-decoration: none;
  font-size: 16px;
}

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

.heading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 200px;
  margin-top: 50px;
}

section {
  padding: 20px;
  margin: 20px;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.grid {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
}

.icon {
  font-size: 40px;
  margin-right: 20px;
}

.desc h2 {
  margin: 0;
  font-size: 20px;
  color: #8b4513;
}

.desc p {
  margin: 5px 0 0 0;
}

#video {
  width: 100%;
  height: 500px;
}

.product {
  text-align: center;
  background-color: #fff;
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 8px;
  margin: 20px;
}

.price {
  color: #8b4513;
  font-size: 24px;
  font-weight: bold;
}

.product ol {
  text-align: left;
  padding-left: 20px;
}

.product button {
  background-color: #8b4513;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
}

.product button:hover {
  background-color: #a0522d;
}

.product-img {
  width: 300px;
  height: 300px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  margin: 12px 0;
  display: block;
  margin-left: auto;
  margin-right: auto;
  background: #fff;
  transition: transform 0.2s;
}

.product-img:hover {
  transform: scale(1.05) rotate(-2deg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.note {
  text-align: center;
  color: #888;
  font-size: 14px;
}

form {
  background-color: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  margin: 20px;
}

form p {
  margin: 0 0 10px 0;
}

form label {
  display: block;
  margin-bottom: 5px;
}

form input[type="email"],
form input[type="submit"] {
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

form input[type="submit"] {
  background-color: #8b4513;
  color: white;
  cursor: pointer;
  font-size: 16px;
}

form input[type="submit"]:hover {
  background-color: #a0522d;
}

footer {
  background-color: #8b4513;
  color: white;
  text-align: center;
  padding: 10px 0;
}

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

footer a {
  color: white;
  text-decoration: none;
}

footer span {
  font-size: 14px;
}

/* スマートフォン用のスタイル */
@media (max-width: 768px) {
  .container {
    max-width: 100%;
    padding: 90px 4px 12px 4px;
  }
  .product-img {
    width: 100%;
    max-width: 220px;
    height: auto;
    min-width: 0;
  }
  .product {
    margin: 12px 0;
    padding: 12px 4px;
  }
  #video {
    height: 200px;
  }
  section {
    padding: 8px;
    margin: 8px 0;
  }
  .heading {
    height: auto;
    font-size: 1.2em;
    margin-top: 60px;
  }
  header img {
    max-width: 90px;
  }
  #nav-bar {
    gap: 8px;
    font-size: 14px;
  }
}