.Birthstone {
  margin: 60px auto;
  max-width: 800px;
  font-family:
    "HG正楷書体-PRO", "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, Osaka, "ＭＳ Ｐゴシック",
    "MS PGothic", sans-serif;
  letter-spacing: 0.1em;
  text-align: left;
}

.bth_stone {
  display: flex;
  flex-flow: row wrap;
  margin: 30px 0;
}

.bth_stone > li {
  margin: 1%;
  padding: 15px 15px 30px;
  width: 48%;
  box-sizing: border-box;
  border: 1px solid #eee;
  box-shadow: 3px 3px 3px rgba(0, 0, 0, 0.1);
}

.bth_stone p {
  margin-top: 5px;
  padding: 1%;
  color: #444;
}

.month {
  font-size: 16px;
  line-height: 2;
  font-weight: bold;
}

#totp {
  position: fixed;
  bottom: 3%;
  right: 3%;
  width: 70px;
}

#totp img {
  width: 100%;
}

#totp a {
  background: none;
}

@media (max-width: 780px) {
  .Birthstone {
    margin: 30px auto;
  }

  .bth_stone p {
    margin-top: 5px;
    padding: 1%;
    color: #444;
    height: 50px;
    overflow: hiden;
  }

  .month {
    font-size: 12px;
    line-height: 1;
    font-weight: bold;
  }

  #totp {
    bottom: 8%;
    right: 0%;
    width: 40px;
    z-index: 120000;
  }
}

/* lower */

.BirthstoneLower {
  display: flex;
  flex-flow: column-reverse;
  padding: 0 0 20px;
}

.BirthstoneNavi {
  position: fixed;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  z-index: 11000;
  width: 100px;
}

.BirthstoneNavi ul {
  display: flex;
  flex-flow: column nowrap;
}

@media (max-width: 780px) {
  .BirthstoneNavi {
    position: sticky;
    top: inherit;
    bottom: 0;
    left: 0;
    transform: inherit;
    width: 100vw;
  }

  .BirthstoneNavi p {
    display: none;
  }

  .BirthstoneNavi ul {
    display: grid;
    grid-template: auto / 1fr 1fr 1fr 1fr 1fr 1fr;
    gap: 1px;
    background: #fff;
  }

  .BirthstoneNavi li {
  }

  .BirthstoneNavi li img {
    display: none;
  }

  .BirthstoneNavi li a {
    display: block;
    background: #000;
    color: #fff;
    text-align: center;
    padding: 5px;
  }

  .BirthstoneNavi li.current a,
  .BirthstoneNavi li a:hover {
    background: #48b;
  }
}

.BirthstoneContents {
  max-width: 950px;
  margin: 40px auto;
}

@media (max-width: 780px) {
  .BirthstoneContents {
    margin: 0 auto;
  }
}

.BirthstoneContents__Title {
  margin: 0;
}

.BirthstoneContents__Body {
  padding: 10px;
}

.BirthstoneContents h4 {
  font-family:
    Georgia,
    "游明朝",
    Yu Mincho,
    YuMincho,
    Hiragino Mincho ProN,
    "HGS明朝E",
    "メイリオ",
    Meiryo,
    serif;
  font-size: clamp(12px, 1.8vw, 30px);
  line-height: 1.6em;
}

.FeatureItems__Title {
  font-family:
    Georgia,
    "游明朝",
    Yu Mincho,
    YuMincho,
    Hiragino Mincho ProN,
    "HGS明朝E",
    "メイリオ",
    Meiryo,
    serif;
}

.FeatureItemsList {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto;
  gap: 10px;
}

.FeatureItemsList__ListItem {
  border: 1px solid #000;
}

.RecommendItems__Title {
  font-family:
    Georgia,
    "游明朝",
    Yu Mincho,
    YuMincho,
    Hiragino Mincho ProN,
    "HGS明朝E",
    "メイリオ",
    Meiryo,
    serif;
}

.RecommendItemsList {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto;
  gap: 10px;
}

.RecommendItemsList__ListItem {
  border: 1px solid #000;
}