html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: auto;          /* 100% でなくてOK */
  /* display: flex;      削除 */
  /* justify-content: center; 削除 */
  /* align-items: center;     削除 */
}

/* ✅ カルーセルを中央寄せ（横）＆高さは画面に応じて可変 */
.carousel {
  width: 100%;
  max-width: 1200px;                /* 以前の最大幅を踏襲 */
  height: clamp(320px, 60vh, 550px);/* 画面に応じて可変・上限下限を設定 */
  margin: 0 auto 10px;             /* 中央寄せ（横）＋下余白 */
  overflow: hidden;
  position: relative;
  background: #fff;
}

.carousel-item {
  visibility: visible;
  display: flex;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: flex-end;
  position: absolute;
  z-index: 0;
  transition: 0.6s all linear;
  background-color: #fff;
}

.carousel-item__info {
  height: 100%;
  display: flex;
  justify-content: center;
  flex-direction: column;
  padding: 0 40px;
  width: 40%;
}

.carousel-item__image {
  width: 60%;
  height: 100%;
  order: 2;
  align-self: flex-end;
  flex-basis: 60%;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  position: relative;
  transform: translateX(100%);
  transition: 0.6s all ease-in-out;
}

/* 各画像 */
.carousel-item--1 .carousel-item__image {
  background-image: url('../icon/hero1.jpg');
}
.carousel-item--2 .carousel-item__image {
  background-image: url('../icon/hero2.jpg');
}
.carousel-item--3 .carousel-item__image {
  background-image: url('../icon/hero3.jpg');
}
.carousel-item--4 .carousel-item__image {
  background-image: url('../icon/hero4.jpg');
}
.carousel-item--5 .carousel-item__image {
  background-image: url('../icon/hero5.jpg');
}

/* テキスト */
.carousel-item__subtitle {
  font-family: 'Open Sans', sans-serif;
  letter-spacing: 3px;
  font-size: 10px;
  text-transform: uppercase;
  margin: 0;
  color: #C5A46D;
  font-weight: 700;
  transform: translateY(25%);
  opacity: 0;
  visibility: hidden;
  transition: 0.4s all ease-in-out;
}
.carousel-item__title {
  margin: 15px 0 0 0;
  font-family: 'Playfair Display', serif;
  font-size: 44px;
  letter-spacing: 3px;
  font-weight: 700;
  color: #2C2C2C;
  transform: translateY(25%);
  opacity: 0;
  visibility: hidden;
  transition: 0.6s all ease-in-out;
}
.carousel-item__description {
  transform: translateY(25%);
  opacity: 0;
  visibility: hidden;
  transition: 0.6s all ease-in-out;
  margin-top: 35px;
  font-family: 'Open Sans', sans-serif;
  font-size: 13px;
  color: #7e7e7e;
  line-height: 22px;
  margin-bottom: 35px;
}

.carousel-item__btn {
  outline: 0;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  background: #40B3A2;
  min-width: 200px;
  border: 0;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, .1);
  box-sizing: border-box;
  padding: 16px 20px;
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  overflow: hidden;
  cursor: pointer;
  font-family: 'Open Sans', sans-serif;
  text-decoration: none;
}
.carousel-item__btn:hover {
  opacity: .95;
}
.carousel-item__btn .animation {
  border-radius: 100%;
  animation: ripple 0.6s linear infinite;
}

@keyframes ripple {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.1), 0 0 0 20px rgba(255, 255, 255, 0.1), 0 0 0 40px rgba(255, 255, 255, 0.1), 0 0 0 60px rgba(255, 255, 255, 0.1);
  }

  100% {
    box-shadow: 0 0 0 20px rgba(255, 255, 255, 0.1), 0 0 0 40px rgba(255, 255, 255, 0.1), 0 0 0 60px rgba(255, 255, 255, 0.1), 0 0 0 80px rgba(255, 255, 255, 0);
  }
}

/* ナビ矢印 */
.carousel__nav {
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: 2;
  background-color: #fff;
}
.carousel__icon {
  width: 16px;
  fill: #5d5d5d;
}
.carousel__arrow {
  cursor: pointer;
  display: inline-block;
  padding: 11px 15px;
  position: relative;
}
.carousel__arrow:nth-child(1):after {
  content: '';
  right: -3px;
  position: absolute;
  width: 1px;
  background-color: #b0b0b0;
  height: 14px;
  top: 50%;
  margin-top: -7px;
}

/* アクティブ時 */
.active {
  z-index: 1;
  display: flex;
  visibility: visible;
}
.active .carousel-item__subtitle,
.active .carousel-item__title,
.active .carousel-item__description,
.active .carousel-item__btn {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition: 0.6s all ease-in-out;
}
.active .carousel-item__image {
  transform: translateX(0);
  transition: 0.6s all ease-in-out;
}

/* スマホ用（幅768px以下） */
@media (max-width: 768px) {
  .carousel-item {
    flex-direction: column;       /* 縦並び */
    justify-content: flex-start;  /* 上から配置 */
    text-align: center;           /* 中央寄せ */
  }

  .carousel-item__image {
    order: 1;          /* 画像を先頭に */
    width: 100%;       /* 全幅 */
    height: 200px;     /* 高さを縮小（必要に応じて調整） */
    transform: translateX(0) !important; /* 横スライド初期値を無効化 */
  }

  .carousel-item__info {
    order: 2;          /* テキストを後に */
    width: 100%;       /* 全幅 */
    padding: 20px;     /* 余白をリセット */
    height: auto;      /* 高さを自動 */
  }

  .carousel-item__title {
    font-size: 28px;   /* タイトル小さめに */
  }

  .carousel-item__description {
    font-size: 14px;
    line-height: 1.6;
    margin-top: 15px;
    margin-bottom: 25px;
  }

  .carousel-item__btn {
    min-width: unset; /* ボタン幅を自動に */
    width: auto;
    padding: 12px 18px;
    font-size: 12px;
  }
}