:root {
  --black: 51,51,51;
  --red: 238,0,59;
  --dark_red: 207,28,85;
  --main: 233,83,131;
  --accent: 227,55,129;
  --note: 102,102,102;
  --bg: 243,243,243;
  --gray: 153,153,153;
  --dark_gray: 167,167,167;
  --border: 210,211,212;
  --light_pink: 252,229,237;
  --beige: 248,244,241;
  --green: 92,198,172;
  --blue: 16,120,237;
  --purple: 189,104,200;
  --light_purple: 242,228,243;
  --contents_width: 1100px;
  --body_padding_side: 60px;
  --contents_width_with_padding: 1160px;
  --sidebar_width: 250px;
  --hover_opacity: .7;
}

/* .l-container
================================================ */
#btx .l-container {
  padding-top: 0;
}

/* .btx-mainimg
================================================ */
.btx-mainimg {
  background: #e6e5f3;
}

/* .btx-head01
================================================ */
.btx-head01 {
  background: #4e2a92;
}

/* .btx-info
================================================ */
.btx-info {
  background: #ffe7e6;
}
.btx-info__head {
  color: #260b5b;
  text-shadow: 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff;
}

/* .btx-about-list
================================================ */
.btx-about-list__item {
  position: relative;
  width: 70%;
  box-sizing: border-box;
  text-align: center;
  margin: 0 auto;
}
.btx-about-list__item + .btx-about-list__item {
  margin-top: 45px;
}
.btx-about-list__item + .btx-about-list__item::before {
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 15px 30px 0 30px;
  border-color: #B2B2B2 transparent transparent transparent;
}
.btx-about-list__item-tit {
  color: #fff;
  font-weight: bold;
  line-height: 1;
  border-radius: 9999px;
  background: #c30044;
  padding: 10px 20px;
  margin-top: 10px;
}
@media all and (min-width: 768px) {
  .btx-about-list {
    display: flex;
    justify-content: space-between;
  }
  .btx-about-list__item {
    width: 30%;
    margin: 0;
  }
  .btx-about-list__item + .btx-about-list__item {
    margin-top: 0;
  }
  .btx-about-list__item + .btx-about-list__item::before {
    top: 50%;
    left: -30px;
    transform: translateY(-50%);
    border-width: 30px 0 30px 15px;
    border-color: transparent transparent transparent #B2B2B2;
  }
  .btx-about-list__item-tit {
    margin-top: 20px;
  }
}

/* .btx-case
================================================ */
.btx-case__inner {
  padding-top: 15px;
  padding-bottom: 50px;
}
.btx-case__head {
  font-family: "Times New Roman", "YuMincho", "Hiragino Mincho ProN", "Yu Mincho", "MS PMincho", serif;
}
@media all and (min-width: 768px) {
  .btx-case__inner {
    padding-top: 50px;
    padding-bottom: 100px;
  }
}

/* .btx-case-about
================================================ */
.btx-case-about {
  background: url(/btx/img/bg_case_about01.png), url(/btx/img/bg_case_about03.png), url(/btx/img/bg_case_about02.png);
  background-position: top, bottom, center;
  background-repeat: no-repeat, no-repeat, repeat-y;
  background-size: contain;
  padding: 8% 6%;
}
.btx-case-about__header {
  font-family: "Times New Roman", "YuMincho", "Hiragino Mincho ProN", "Yu Mincho", "MS PMincho", serif;
  font-size: 2rem;
  font-weight: bold;
  line-height: 1.4;
  text-align: center;
}
@media all and (min-width: 768px) {
  .btx-case-about {
    padding: 50px 40px 60px;
  }
  .btx-case-about__header {
    font-size: 5rem;
  }
}

/* .btx-case-recommend
================================================ */
.btx-case-recommend__header {
  color: #fff;
  font-weight: bold;
  line-height: 1.4;
  text-align: center;
  background: #f52d6a;
  padding: 10px 15px;
}
.btx-case-recommend__body {
  background: #f9f6e9;
  padding: 15px;
}
.btx-case-recommend__list-item {
  position: relative;
  font-weight: bold;
  line-height: 1.6;
  border-bottom: 1px dashed #999;
  padding: 0 0 10px 25px;
}
.btx-case-recommend__list-item::before {
  position: absolute;
  top: 0;
  left: 0;
  content: "";
  display: inline-block;
  width: 19.5px;
  height: 17.5px;
  background: url(/btx/img/ico_check02.png) center center no-repeat;
  background-size: contain;
}
.btx-case-recommend__list-item + .btx-case-recommend__list-item {
  margin-top: 10px;
}
@media all and (min-width: 768px) {
  .btx-case-recommend__header {
    font-size: 2.4rem;
    padding: 15px 30px;
  }
  .btx-case-recommend__body {
    padding: 30px;
  }
  .btx-case-recommend__list-item {
    font-size: 2rem;
    padding: 0 0 15px 50px;
  }
  .btx-case-recommend__list-item::before {
    top: -5px;
    width: 39px;
    height: 35px;
  }
  .btx-case-recommend__list-item + .btx-case-recommend__list-item {
    margin-top: 15px;
  }
}

/* .btx-list-intro
================================================ */
.btx-list-intro {
  background: #fff4f1;
  padding: 15px 0;
}
@media all and (min-width: 768px) {
  .btx-list-intro {
    padding: 60px 0;
  }
}

/* .btx-list-anchor
================================================ */
.btx-list-anchor {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2%;
}
.btx-list-anchor__item {
  position: relative;
  width: 48%;
  border: solid 1px #d4d4d4;
  background: #fff;
}
.btx-list-anchor__item:nth-child(n+3) {
  margin-top: 10px;
}
.btx-list-anchor__body {
  padding: 10px 10px 60px;
}
.btx-list-anchor__tit {
  font-size: 1.4rem;
  font-weight: bold;
  line-height: 1.4;
  text-align: center;
  margin-bottom: 5px;
}
.btx-list-anchor__img {
  text-align: center;
}
.btx-list-anchor__btn {
  position: absolute;
  width: 100%;
  bottom: 0;
}
.btx-list-anchor__btn a {
  position: relative;
  display: block;
  color: #fff;
  font-size: 1.4rem;
  font-weight: bold;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  background: linear-gradient(to bottom, #ba407f 0%, #ba407f 50%, #ab306e 50%, #ab306e 100%);
  padding: 10px 0;
}
.btx-list-anchor__btn a::before {
  position: absolute;
  top: 50%;
  right: 5px;
  width: 8px;
  height: 13px;
  content: "";
  display: inline-block;
  background-color: currentColor;
  color: #fff;
  -webkit-mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 8 13"><path d="M.95.5 0 1.53l5.032 4.976L0 11.483.95 12.5 7 6.506.95.5Z" fill="currentColor"/></svg>');
  mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 8 13"><path d="M.95.5 0 1.53l5.032 4.976L0 11.483.95 12.5 7 6.506.95.5Z" fill="currentColor"/></svg>');
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  transition: all 0.3s ease;
  transform: translateY(-50%);
}
@media all and (min-width: 768px) {
  .btx-list-anchor {
    justify-content: space-between;
    gap: initial;
  }
  .btx-list-anchor__item {
    width: 32%;
  }
  .btx-list-anchor__item:nth-child(n+3) {
    margin-top: 0;
  }
  .btx-list-anchor__body {
    padding: 20px 20px 70px;
  }
  .btx-list-anchor__tit {
    font-size: 2.2rem;
    margin-bottom: 10px;
  }
  .btx-list-anchor__btn a {
    font-size: 2.2rem;
    padding: 20px 0;
  }
  .btx-list-anchor__btn a::before {
    right: 10px;
    width: 10px;
    height: 21px;
  }
}

/* .btx-list
================================================ */
.btx-list-item__area-img {
  width: 70%;
  text-align: center;
  margin-inline: auto;
}
.btx-list-tags {
  font-size: 0;
  text-align: center;
  margin-bottom: 15px;
}
.btx-list-tags__item {
  display: inline-block;
  color: #fff;
  font-size: 1.4rem;
  line-height: 1.4;
  background: #f52d6a;
  border-radius: 5px;
  padding: 5px 10px;
  margin: 0 5px 5px 0;
}
@media all and (min-width: 768px) {
  .btx-list-item__area-img {
    width: auto;
  }
  .btx-list-tags {
    margin-bottom: 30px;
  }
  .btx-list-tags__item {
    font-size: 1.8rem;
    padding: 5px 10px;
    margin: 0 10px 0 0;
  }
}

/* .btx-list-point
================================================ */
.btx-list-point {
  display: flex;
  justify-content: center;
  gap: 1%;
}
@media all and (min-width: 768px) {
  .btx-list-point {
    gap: 2%;
  }
}