@charset "UTF-8";
/* ------------------ TOPページ ------------------ */
html {
  scroll-behavior: smooth;
}

.open-page {
  /* color: #3fc3ab; */
  color: rgb(204, 200, 241);
}

.sp-on {
  display: none;
}

/* ------------------ トップスライダー（Wix風ネイティブスクロール） ------------------ */
/* スライダーを囲むセクション（上下の余白用） */
.top-slider-section {
  background-color: #159BA4; /* Wixと同じシアン系背景色 */
  padding: 8px 0; /* Wixと同じ上下の余白 */
}

#top-slider {
  position: relative;
  width: 100%;
  height: clamp(250px, 28vw, 415px); /* Wixと同じ高さ */
  overflow-x: scroll;
  overflow-y: hidden;
  background-color: #159BA4; /* Wixと同じシアン系背景色 */
  cursor: grab;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
  /* Wix風：ネイティブスクロール動作を有効化 */
  -webkit-overflow-scrolling: touch; /* iOS慣性スクロール */
  touch-action: pan-x; /* タッチ操作は横スクロールのみ */
  user-select: none; /* ドラッグ中のテキスト選択を防止 */
}
#top-slider::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
  width: 0;
  height: 0;
}
#top-slider:active {
  cursor: grabbing;
}
#top-slider.auto-scroll .top-slider-track {
  animation: sliderScroll 15s linear infinite;
}

.top-slider-track {
  display: flex;
  height: 100%;
  gap: 21px; /* Wixと同じ間隔 */
  width: max-content;
  padding: 0 10px; /* 左右の余白 */
}

/* 自動スクロールアニメーション */
@keyframes sliderScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}
/* 各アイテム共通 */
.top-slider-item {
  position: relative;
  flex-shrink: 0;
  height: 100%;
  overflow: hidden;
  cursor: pointer;
}
.top-slider-item img,
.top-slider-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.top-slider-item:hover img, .top-slider-item:hover video {
  transform: scale(1.05);
}
.top-slider-item[data-type=video] video {
  display: block !important;
}

/* 横長アイテム（865px相当 → 約2.13:1） */
.top-slider-item--wide {
  width: clamp(400px, 45vw, 865px);
}

/* 縦長アイテム（332px相当 → 約0.82:1） */
.top-slider-item--narrow {
  width: clamp(150px, 17vw, 332px);
}

/* 中間アイテム（719px相当 → 約1.78:1） */
.top-slider-item--medium {
  width: clamp(350px, 38vw, 719px);
}

/* ------------------ メインビュー ------------------ */
#main-view {
  position: relative;
}

#main-view > .main-view-logo {
  position: absolute;
  z-index: 5;
  top: 6%;
  left: 0;
  right: 0;
  margin: 0 auto;
  width: clamp(200px, 22vw, 350px);
}

.main-view-video {
  width: 100%;
  height: clamp(10px, 65vw, 832px);
  object-fit: cover;
}

.main-view-wrapper {
  position: absolute;
  top: 20%;
  width: 100%;
  text-align: center;
}

.main-view-title {
  font-family: "Noto Serif JP", YuMincho, "Hiragino Mincho ProN", serif;
  font-weight: 100;
  font-size: clamp(10px, 4.5vw, 54px);
  color: #ffffff;
  margin-bottom: 4%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.main-view-content {
  font-size: clamp(10px, 2vw, 22px);
  color: #ffffff;
  line-height: 1.5;
  margin-bottom: 10%;
  letter-spacing: 1px;
}

.link-area {
  display: flex;
  justify-content: center;
  gap: 3%;
  flex-wrap: wrap;
  width: 70%;
  margin: 0 auto;
}

.link-area a {
  font-size: clamp(10px, 1.5vw, 18px);
  /* font-weight: bold; */
  color: #02111a;
  border: solid 1px #499b8d;
  /* background-color: rgba(255, 255, 255, 0.3); */
  width: 31%;
  padding: 2% 0;
  margin-bottom: 3%;
  transition: background-color 0.3s ease, color 0.3s ease;
}
.link-area a:hover {
  background-color: #7ED2CA;
  color: #FFF;
}

.main-view-logo-area {
  text-align: center;
}

.main-view-logo {
  width: 20%;
  margin: 4%;
}

/* ------------------ WBNOについて ------------------ */
#wbno {
  background: linear-gradient(45deg, rgba(211, 250, 250, 0.1), rgba(80, 160, 160, 0.1));
  text-align: center;
  padding: 5%;
  /* margin-top: -2px; */
  margin-top: -5px;
  position: relative;
  overflow: hidden;
  /* 暗いグラデーションレイヤー */
}
#wbno::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  /* 多段・低コントラストのグラデーション */
  background: linear-gradient(-200deg, rgba(255, 255, 255, 0) 10%, rgb(38, 146, 153) 80%, rgb(38, 146, 153) 100%);
  /* フェザー付きマスク */
  -webkit-mask-image: linear-gradient(to top, rgb(0, 0, 0) 0%, rgb(0, 0, 0) var(--wbnoMaskEnd, 0%), rgba(0, 0, 0, 0) calc(var(--wbnoMaskEnd, 0%) + 20%));
  mask-image: linear-gradient(to top, rgb(0, 0, 0) 0%, rgb(0, 0, 0) var(--wbnoMaskEnd, 0%), rgba(0, 0, 0, 0) calc(var(--wbnoMaskEnd, 0%) + 20%));
  transition: -webkit-mask-image 0.25s linear;
}
#wbno > * {
  position: relative;
  z-index: 1;
}

.wbno-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(10px, 4vw, 51px);
  color: #ffffff;
  margin-bottom: 8%;
}

.wbno-sub-title {
  font-size: clamp(10px, 2.2vw, 28px);
  font-weight: 500;
  color: #ffffff;
  margin-bottom: 5%;
}

.wbno-content {
  font-size: clamp(10px, 1.5vw, 19px);
  font-weight: 100;
  color: #ffffff;
  line-height: 1.5;
  margin-bottom: 3%;
  /* font-family: "Zen Old Mincho", serif; */
  font-family: "Noto Serif JP", "YuMincho", "Hiragino Mincho ProN", serif;
}

.wbno-logo {
  font-size: clamp(10px, 5.5vw, 70px);
  font-weight: 500;
  color: #ffffff;
}

.r-mark {
  font-size: clamp(10px, 2vw, 26px);
  vertical-align: top;
  margin-left: -0.5%;
}

.wbno-full {
  font-size: clamp(10px, 1.5vw, 19px);
  font-weight: 500;
  color: #ffffff;
  letter-spacing: 1px;
}

/* ------------------ OEM ------------------ */
#oem {
  text-align: center;
  padding: 8% 14%;
}

.oem-title-area {
  border-top: solid 1px #00a199;
  border-bottom: solid 1px #00a199;
  padding: 2% 0;
  margin-bottom: 5%;
}

.oem-title {
  font-family: "Zen Old Mincho", serif;
  font-size: clamp(10px, 3vw, 38px);
}

.oem-sub-title {
  font-size: clamp(10px, 1.5vw, 19px);
  font-weight: 500;
  color: #00c4af;
  letter-spacing: 2px;
}

.oem-content {
  font-family: "YuMincho", "Yu Mincho", "游明朝", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(10px, 1.5vw, 19px);
  font-weight: 200;
  color: rgb(92, 101, 119);
  line-height: 1.5;
  margin-bottom: 5%;
}

.oem-photo-area {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.oem-photo-area {
  text-align: center;
}

.oem-photo-area img {
  width: 100%;
  border-radius: 8px;
}

/* ------------------ Quality ------------------ */
#quality {
  padding: 0 14% 8%;
}

.quality-title-area {
  border-top: solid 1px #00a199;
  border-bottom: solid 1px #00a199;
  text-align: center;
  padding: 2% 0;
  margin-bottom: 8%;
}

.quality-title {
  font-family: "Zen Old Mincho", serif;
  font-size: clamp(10px, 3vw, 38px);
}

.quality-sub-title {
  font-size: clamp(10px, 1.5vw, 19px);
  font-weight: 500;
  color: #00c4af;
  letter-spacing: 2px;
}

.certification-area {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

/* 7個目（JFRL・最後）のアイテムを中央寄せ */
.certification-area .certification-wrapper:last-child {
  width: 100%;
  justify-content: center;
}

.certification-area .certification-wrapper:last-child .certification-photo {
  width: 14%;
}

.certification-area .certification-wrapper:last-child .certification-container {
  width: 38%;
}

.certification-wrapper {
  display: flex;
  align-items: center;
  width: 49%;
  margin-bottom: 8%;
}

.certification-photo {
  width: 24%;
  margin-right: 1.5%;
}

/* 横長ロゴ（大きめ） */
.certification-photo--wide {
  width: 30%;
}

/* 縦長ロゴ（小さめ） */
.certification-photo--tall {
  width: 20%;
}

/* ロゴの浮き出し効果 */
.certification-photo img {
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: box-shadow 0.3s ease;
}

.certification-photo:hover img {
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.certification-container {
  width: 70%;
  display: flex;
  align-items: center;
  gap: 0.5vw;
}

.certification-container img {
  width: 32px;
  height: 35px;
}

.certification-content {
  font-family: "YuMincho", "Yu Mincho", "游明朝", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(10px, 1.2vw, 18px);
  font-weight: 200;
  color: rgb(92, 101, 119);
  line-height: 1.6;
  margin-bottom: 2%;
}

.url {
  font-size: clamp(10px, 1vw, 13px);
  font-weight: 500;
  color: #00c4af;
}

.quality-content {
  font-family: "YuMincho", "Yu Mincho", "游明朝", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(10px, 1.5vw, 19px);
  font-weight: 200;
  color: rgb(92, 101, 119);
  text-align: center;
  line-height: 1.5;
}

/* ------------------ NMN ------------------ */
#nmn {
  margin: 0 8% 10%;
}

/* 水平線（NADセクション） */
.nad-divider {
  width: 90%;
  border: none;
  border-top: solid 1px #d0d0d0;
  margin: 0 auto 5%;
}

.border {
  width: 90%;
  height: clamp(10px, 4vw, 51px);
  border-top: solid 1px #00a199;
  border-bottom: solid 1px #00a199;
  margin: 0 auto 5%;
}

.nmn-sub-title {
  font-size: clamp(10px, 1.5vw, 19px);
  font-weight: 500;
  color: #00c4af;
  letter-spacing: 2px;
  text-align: center;
}

.nmn-title {
  font-family: "Zen Old Mincho", serif;
  font-size: clamp(10px, 3vw, 38px);
  color: #3e3a39;
  text-align: center;
  margin-top: -2%;
  margin-bottom: 2%;
}

.under-line {
  width: 8%;
  border-top: solid 1px #00a199;
  margin: 0 auto 3%;
}

.nmn-content {
  font-family: "YuMincho", "Yu Mincho", "游明朝", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(10px, 1.5vw, 19px);
  font-weight: 200;
  color: rgb(92, 101, 119);
  text-align: center;
  line-height: 1.5;
  margin-bottom: 8%;
}

.graph-area {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.graph-content {
  font-family: "YuMincho", "Yu Mincho", "游明朝", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(10px, 1.5vw, 19px);
  font-weight: 200;
  color: rgb(92, 101, 119);
  line-height: 1.8;
  width: 48%;
}

.graph-right {
  width: 48%;
}

#graph {
  width: 100%;
}

/* 参考文献エリア */
.references-area {
  margin-top: 8%;
}

.references-title {
  font-family: "Noto Serif JP", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(12px, 1.2vw, 16px);
  font-weight: 500;
  color: #3e3a39;
  margin-bottom: 2%;
}

.references-list {
  font-size: clamp(10px, 0.9vw, 12px);
  color: #666;
  line-height: 1.6;
  padding-left: 1.5em;
}

.references-list li {
  margin-bottom: 0.3em;
}

/* ------------------ ショッピング ------------------ */
#shopping {
  position: relative;
  overflow: hidden;
}

.shopping-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.shopping-wrapper {
  padding: 8% 14%;
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

/* special-area wrapper: 薄いグレー背景（Wix website-32スタイル） */
.special-area-wrapper {
  background-color: #F5F5F5;
  padding: 20px 5% 30px;
}

/* special-area: 3カラム全体コンテナ - Wix website-32スタイル */
.special-area {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 0;
  max-width: 980px;
  margin: 0 auto;
  border-radius: 0;
  overflow: visible;
  background-color: rgba(255, 255, 255, 0.8);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
}

/* 左カラム: 動画（薄いシアングレー背景） */
.special-video-box {
  flex: 1;
  overflow: hidden;
  border-radius: 0;
  min-height: 450px;
  box-shadow: none;
  background-color: #F3F8F8;
  padding: 15px;
}

.special-video-mask {
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 150px 0 150px 0;
}

.special-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 30% center;
  display: block;
}

/* 中央カラム: 商品画像（薄いシアングレー背景） */
.special-photo-box {
  flex: 1;
  overflow: hidden;
  border-radius: 0;
  min-height: 450px;
  box-shadow: none;
  background-color: #ffffff;
  padding: 15px;
}

.special-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 右カラム: テキストエリア（薄いシアングレー背景、ボーダー付き） */
.special-content-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background-color: #F3F8F8;
  padding: 5% 3%;
  border-radius: 8px;
  min-height: 450px;
  box-shadow: none;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.offer {
  font-size: clamp(18px, 2.2vw, 32px);
  font-weight: 400;
  color: #61966A;
  margin-bottom: 8%;
  line-height: 1.5;
  letter-spacing: 0.05em;
}

.discount {
  font-family: "League Spartan", sans-serif;
  font-size: clamp(48px, 6vw, 90px);
  font-weight: 400;
  color: #61966A;
  margin-bottom: 12%;
  line-height: 1;
  letter-spacing: -0.02em;
}

.shopping-link {
  font-size: clamp(14px, 1.2vw, 18px);
  font-weight: 500;
  color: #61966A;
  background-color: transparent;
  border: 1px solid #61966A;
  border-radius: 100px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 40px;
  text-decoration: none;
  transition: all 0.3s ease;
  letter-spacing: 0.15em;
  min-width: 180px;
}

.shopping-link:hover {
  background-color: #61966A;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(97, 150, 106, 0.3);
}

.shopping-link .arrow {
  font-size: 1.4em;
  transition: transform 0.3s ease;
}

.shopping-link:hover .arrow {
  transform: translateX(4px);
}

.shopping-link .arrow {
  font-size: 1.2em;
}

.best-title {
  font-size: clamp(10px, 2.5vw, 32px);
  font-weight: 500;
  color: #ffffff;
  text-align: center;
  margin-bottom: 1%;
}

.best-subtitle {
  color: #ffffff;
  text-align: center;
  font-size: clamp(10px, 1.2vw, 16px);
  margin-bottom: 3%;
  letter-spacing: 0.05em;
}

.product-slide-area {
  position: relative;
}

#product-add-area {
  display: flex;
  justify-content: center;
  gap: 3%;
}

.product-area {
  text-align: center;
  width: 26%;
}

.product-photo-container {
  overflow: hidden;
}

.product-photo {
  transition: transform 0.3s ease;
}

.product-photo:hover {
  transform: scale(1.1);
}

.product-name {
  font-size: clamp(10px, 1.5vw, 19px);
  font-weight: 500;
  color: #3e3a39;
  margin: 10% 0 7%;
}

.product-price {
  font-size: clamp(10px, 1.5vw, 19px);
  color: #3e3a39;
  border-top: solid 1px #717071;
  width: 60%;
  margin: 0 auto;
  padding-top: 7%;
}

#product-next-bt {
  font-size: clamp(10px, 2.5vw, 32px);
  color: #3e3a39;
  background-color: rgba(255, 255, 255, 0.7);
  border-radius: 50%;
  position: absolute;
  right: 0;
  top: 30%;
  padding: 1% 1% 1% 1.5%;
}

/* ------------------ スライダー ------------------ */
#slider {
  position: relative;
}

#slider-prev-bt {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: 2%;
  font-size: clamp(10px, 5vw, 64px);
  color: #ffffff;
}

#slider-next-bt {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  right: 2%;
  font-size: clamp(10px, 5vw, 64px);
  color: #ffffff;
}

/* ------------------ SP ------------------ */
@media screen and (max-width: 960px) {
  /* ------------------ トップスライダー SP ------------------ */
  .top-slider-panel {
    height: clamp(100px, 25vw, 200px);
  }
  /* ------------------ メインビュー SP ------------------ */
  #main-view > .main-view-logo {
    display: block;
    position: absolute;
    z-index: 5;
    top: 25px;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: clamp(150px, 50vw, 250px);
  }
  .sp-on {
    display: block;
  }
  .sp-off {
    display: none;
  }
  .main-view-video {
    height: clamp(10px, 200vw, 2400px);
  }
  .main-view-wrapper {
    top: 14%;
    width: 100%;
    padding: 0 5%;
  }
  .main-view-title {
    font-size: clamp(10px, 10vw, 128px);
    margin-bottom: 8%;
  }
  .main-view-content {
    font-size: clamp(10px, 4.5vw, 58px);
    margin-bottom: 15%;
  }
  .link-area {
    gap: 3%;
    flex-wrap: wrap;
    width: 100%;
  }
  .link-area a {
    font-size: clamp(10px, 4.5vw, 45px);
    width: 100%;
    padding: 4%;
    margin-bottom: 3%;
  }
  .main-view-logo {
    width: 40%;
    margin: 8%;
  }
  /* ------------------ WBNOについて SP ------------------ */
  #wbno {
    padding: 10%;
  }
  .wbno-title {
    font-size: clamp(10px, 8vw, 102px);
    margin-bottom: 12%;
  }
  .wbno-sub-title {
    font-size: clamp(10px, 5vw, 64px);
    margin-bottom: 10%;
  }
  .wbno-content {
    font-size: clamp(10px, 3.5vw, 119px);
    margin-bottom: 8%;
  }
  .wbno-logo {
    font-size: clamp(10px, 12vw, 154px);
  }
  .r-mark {
    font-size: clamp(10px, 5vw, 64px);
    margin-left: -1%;
  }
  .wbno-full {
    font-size: clamp(10px, 3.5vw, 45px);
  }
  /* ------------------ OEM SP ------------------ */
  #oem {
    padding: 10% 20px;
  }
  .oem-title-area {
    padding: 8% 0;
    margin-bottom: 5%;
  }
  .oem-title {
    font-size: clamp(10px, 6vw, 77px);
  }
  .oem-sub-title {
    font-size: clamp(10px, 4vw, 51px);
  }
  .oem-content {
    font-size: clamp(10px, 3.5vw, 45px);
    margin-bottom: 5%;
    text-align: left;
  }
  .oem-photo-area {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 3%;
  }
  .oem-photo-area img {
    width: 100%;
    margin-bottom: 3%;
  }
  /* ------------------ Quality SP ------------------ */
  #quality {
    padding: 0 20px 10%;
  }
  .quality-title-area {
    padding: 8% 0;
    margin-bottom: 8%;
  }
  .quality-title {
    font-size: clamp(10px, 6vw, 77px);
  }
  .quality-sub-title {
    font-size: clamp(10px, 4vw, 51px);
  }
  .certification-wrapper {
    width: 100%;
    margin-bottom: 8%;
  }
  /* JFRL（最後のアイテム）もSPでは他と同じ表示に */
  .certification-area .certification-wrapper:last-child {
    width: 100%;
    justify-content: flex-start;
  }
  .certification-area .certification-wrapper:last-child .certification-photo {
    width: 24%;
  }
  .certification-area .certification-wrapper:last-child .certification-container {
    width: 70%;
  }
  .certification-photo {
    width: 24%;
    margin-right: 1.5%;
  }
  .certification-container img {
    width: 32px;
  }
  .certification-content {
    font-size: clamp(14px, 2.5vw, 32px);
    margin-bottom: 2%;
    word-break: break-all;
  }
  .url {
    font-size: clamp(10px, 2vw, 26px);
    word-break: break-all;
  }
  .quality-content {
    font-size: clamp(10px, 3.5vw, 45px);
    text-align: left;
  }
  /* ------------------ NMN SP ------------------ */
  #nmn {
    margin: 0 20px 10%;
  }
  .nad-divider {
    width: 100%;
  }
  .border {
    width: 100%;
    height: clamp(10px, 8vw, 102px);
    margin: 0 auto 8%;
  }
  .nmn-sub-title {
    font-size: clamp(10px, 4vw, 51px);
  }
  .nmn-title {
    font-size: clamp(10px, 6vw, 77px);
    margin-top: -3%;
    margin-bottom: 4%;
  }
  .under-line {
    width: 15%;
    margin: 0 auto 5%;
  }
  .nmn-content {
    font-size: clamp(10px, 3.5vw, 45px);
    margin-bottom: 8%;
  }
  .graph-area {
    flex-direction: column-reverse;
  }
  .graph-content {
    font-size: clamp(10px, 3.5vw, 45px);
    margin-bottom: 5%;
    width: 100%;
  }
  .graph-right {
    width: 100%;
  }
  #graph {
    width: 100%;
    margin-bottom: 3%;
  }
  .references-area {
    margin-top: 3%;
    margin-bottom: 8%;
  }
  .references-title {
    font-size: clamp(12px, 3vw, 16px);
  }
  .references-list {
    font-size: clamp(10px, 2.5vw, 14px);
  }
  /* ------------------ ショッピング　SP ------------------ */
  .shopping-video {
    height: clamp(10px, 245vw, 3136px);
  }
  .shopping-wrapper {
    padding: 15% 10%;
  }
  .special-area {
    flex-direction: column;
    gap: 0;
    border-radius: 0;
    box-shadow: none;
    background-color: rgba(255, 255, 255, 0.8);
  }
  .special-video-box {
    position: relative;
    width: 100%;
    height: 60vw;
    min-height: auto;
    border-radius: 0;
  }
  .special-video-mask {
    border-radius: 100px 0 100px 0;
  }
  .special-photo-box {
    width: 100%;
    height: 60vw;
    min-height: auto;
    border-radius: 0;
  }
  .special-content-area {
    width: 100%;
    padding: 12% 5%;
    min-height: auto;
    border-radius: 0;
  }
  .offer {
    font-size: clamp(20px, 5vw, 32px);
    margin-bottom: 6%;
  }
  .discount {
    font-size: clamp(56px, 14vw, 100px);
    margin-bottom: 10%;
  }
  .shopping-link {
    font-size: clamp(14px, 4vw, 18px);
    padding: 14px 50px;
    min-width: 200px;
  }
  .best-title {
    font-size: clamp(18px, 5vw, 28px);
    margin-bottom: 2%;
  }
  .best-subtitle {
    font-size: clamp(10px, 3vw, 14px);
    margin-bottom: 5%;
  }
  /* ベストセラー商品: シングル表示+スワイプ対応 */
  .product-slide-area {
    width: 100%;
    overflow: visible;
  }
  #product-add-area {
    display: flex;
    gap: 4%;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 0 10%;
  }
  #product-add-area::-webkit-scrollbar {
    display: none;
  }
  .product-area {
    flex: 0 0 80%;
    min-width: 80%;
    scroll-snap-align: center;
  }
  .product-name {
    font-size: clamp(12px, 4vw, 18px);
    margin: 8% 0 5%;
  }
  .product-price {
    font-size: clamp(14px, 4.5vw, 20px);
    padding-top: 5%;
  }
  #product-next-bt {
    display: none; /* スワイプ操作のため非表示 */
  }
}