.header_container {
  z-index: 9999;
}

.stm_otherpage_title {
  margin-bottom: 30px;
}

.c_bold {
  font-weight: bold;
}

.c_red {
  color: #da0c0c;
}

.flex {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

.product_top_mv {
  width: 100%;
  height: 250px;
  margin-bottom: 60px;
  position: relative;
  overflow: hidden;
}
.product_top_mv::before {
  content: "";
  display: block;
  background-image: url(../images/product_top_mv.png);
  width: 100%;
  height: 100%;
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  position: absolute;
  top: 0;
  left: 0;
  z-index: -5;
}

.stm_top_catch_main {
  font-size: 15px;
  text-align: center;
}
.stm_top_catch_sub {
  font-size: 13px;
  margin-top: 10px;
  text-align: center;
}

.stm_product_list_area {
  width: 90%;
  max-width: 310px;
  margin: 0 auto 100px;
  padding-top: 60px;
}

ul.stm_product_list_links {
  width: 100%;
  position: sticky;
  top: 80px;
  gap: 8px;
  padding: 0 0 20px 0;
  background-color: #fff;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  z-index: 9995;
}
ul.stm_product_list_links a {
  opacity: 1;
  -webkit-transition: opacity 0.5s ease;
  transition: opacity 0.5s ease;
}
ul.stm_product_list_links a.is-active {
  opacity: 0.4;
}
ul.stm_product_list_links a:hover {
  opacity: 0.4;
}

li.stm_product_link {
  gap: 5px;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  font-size: 13px;
}

.stm_sec_title {
  width: 100%;
  height: 140px;
  position: relative;
  margin-top: 160px;
}
.stm_sec_title::before {
  content: "";
  display: block;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -5;
}
.stm_sec_title_wrap {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
.stm_sec_title_en {
  font-size: 16px;
  text-align: center;
  color: #fff;
}
.stm_sec_title_jp {
  font-size: 12px;
  text-align: center;
  color: #fff;
}

.stm_product_head_wrap {
  position: relative;
}
.stm_product_head_wrap::before {
  content: "";
  display: block;
  width: 1px;
  height: 100%;
  background-color: #000;
  position: absolute;
  top: 50%;
  left: -14px;
  -webkit-transform: translateY(-50%);
          transform: translateY(-50%);
}
.stm_product_head_en {
  font-size: 20px;
  line-height: 1;
}
.stm_product_head_jp {
  font-size: 13px;
  color: #B7B7B7;
  line-height: 1;
  padding-top: 10px;
}

.stm_product_detail_wrap {
  width: 100%;
  margin-top: 18px;
}
.stm_product_detail_thumnail {
  width: 100%;
  -webkit-transition: 0.4s;
  transition: 0.4s;
}
.stm_product_detail_thumnail img {
  width: 100%;
}
.stm_product_detail_thumnail:hover {
  opacity: 0.7;
}
.stm_product_detail_lead {
  font-size: 14px;
  text-align: center;
  margin-top: 16px;
}
.stm_product_detail_desc {
  font-size: 10px;
  text-align: right;
  margin-top: 4px;
  display: block;
}
.stm_product_detail_price_wrap {
  margin-top: 10px;
  padding-top: 10px;
  border-top: solid 1px #B7B7B7;
}
.stm_product_detail_name {
  font-size: 13px;
  margin-bottom: 10px;
}
.stm_product_detail_name:last-child {
  margin-bottom: 0;
}
.stm_product_detail_more_btn {
  width: 100%;
  background-color: #000;
  font-size: 13px;
  height: 38px;
  margin-top: 16px;
  -webkit-transition: 0.5s;
  transition: 0.5s;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}
.stm_product_detail_more_btn a {
  width: 100%;
  height: 100%;
  display: block;
  line-height: 38px;
  color: #fff;
  text-align: center;
}
.stm_product_detail_more_btn:hover {
  background-color: #fff;
  border: solid 1px #000;
}
.stm_product_detail_more_btn:hover a {
  color: #000;
}

@media screen and (min-width: 821px) {
  header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.8);
  }
  .stm_r_main_menu ul li {
    font-size: 14px;
  }
  .stm_otherpage_title {
    margin-bottom: 30px;
    margin-top: 80px;
  }
  .product_top_mv {
    width: 100%;
    height: 500px;
    margin-top: 40px;
  }
  .product_top_mv img {
    height: 500px;
  }
  .product_top_mv::before {
    content: "";
    display: block;
    background-image: url(../images/product_top_mv.png);
    width: 100%;
    height: 500px;
    background-attachment: fixed;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -5;
  }
  ul.stm_product_list_links {
    top: 99px;
    gap: 20px;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.8);
  }
  .stm_product_container {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 48px;
    width: 90%;
  }
  .stm_sec_title {
    height: clamp(180px, 12vw, 210px);
  }
  .stm_sec_title_en {
    font-size: 20px;
  }
  .stm_sec_title_jp {
    font-size: 16px;
    margin-top: 8px;
  }
  .sec_title_limited::before {
    background-image: url(../images/title_limited.png);
  }
  .sec_title_skin::before {
    background-image: url(../images/title_skin.png);
  }
  .sec_title_uv::before {
    background-image: url(../images/title_uv.png);
  }
  .sec_title_special::before {
    background-image: url(../images/title_special.png);
  }
  .sec_title_gift::before {
    background-image: url(../images/title_gift.png);
  }
}
@media screen and (max-width: 1080px) {
  header {
    height: 80px;
    position: fixed;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.8);
    top: 0;
    left: 0;
    width: 100%;
  }
  .stm_r_main_menu ul li {
    font-size: 12px;
  }
  ul.stm_product_list_links {
    top: 79px;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.8);
  }
}
@media screen and (max-width: 820px) {
  .product_top_mv::before {
    background-image: url(../images/product_top_mv_sp.png);
  }
  .stm_product_container {
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .stm_r_main_menu ul li {
    padding-bottom: 16px;
  }
  .stm_product_container {
    margin: 0 auto;
  }
  .sec_title_limited::before {
    background-image: url(../images/title_limited_sp.png);
  }
  .sec_title_skin::before {
    background-image: url(../images/title_skin_sp.png);
  }
  .sec_title_uv::before {
    background-image: url(../images/title_uv_sp.png);
  }
  .sec_title_special::before {
    background-image: url(../images/title_special_sp.png);
  }
  .sec_title_gift::before {
    background-image: url(../images/title_gift_sp.png);
  }
}
@media screen and (max-width: 480px) {
  .product_top_mv {
    overflow: hidden;
  }
  .product_top_mv::before {
    background-image: url(../images/product_top_mv_sp.png);
  }
  .stm_product_container {
    grid-template-columns: repeat(1, minmax(0, 1fr));
    width: calc(90% - 22.5px);
  }
}
.stm_product_detail_price_wrap {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  -webkit-box-align: end;
      -ms-flex-align: end;
          align-items: flex-end;
}

.stm_product_detail_name {
  display: contents;
}

.stm_product_detail_name span.volume {
  text-align: left;
}

.stm_product_detail_name span.price {
  text-align: left;
}