body {
  margin: 0;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  background: #f6f4ef;
  color: #333;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* メインビジュアル */
.hero img {
  width: 100%;
  border-radius: 12px;
  margin-bottom: 30px;
}

/* 商品情報 */
.product h1 {
  font-size: 28px;
  margin-bottom: 8px;
}

.subtitle {
  color: #777;
  margin-bottom: 20px;
}

.price {
  font-size: 22px;
  font-weight: bold;
  margin-bottom: 20px;
}

.description {
  line-height: 1.8;
  margin-bottom: 30px;
}

/* ギャラリー */
.gallery {
  display: flex;
  gap: 16px;
  margin-bottom: 30px;
}

.gallery img {
  width: 50%;
  border-radius: 10px;
}

/* 購入エリア */
.buy-area {
  padding: 24px;
  background: #fff;
  border-radius: 12px;
}

.buy-area label {
  display: block;
  margin-bottom: 16px;
}

select {
  margin-left: 10px;
  padding: 6px;
}

button {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  background: #3b5d4a;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

button:hover {
  background: #2f4a3b;
}

.message {
  margin-top: 12px;
  color: #3b5d4a;
  font-size: 14px;
}