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

/* .petit_btx-mainimg
================================================ */
.petit_btx-mainimg {
  background-color: #e1e7f5;
}

/* .petit_btx-use-neuronox
================================================ */
.petit_btx-use-neuronox-list {
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
}
.petit_btx-use-neuronox-list__item {
  width: 48%;
}
.petit_btx-use-neuronox-list__head {
  padding: 5px;
  text-align: center;
  color: #fff;
  font-size: 1.2rem;
  line-height: 1.3;
  border-radius: 10px;
  background: #96b822;
  max-width: 154px;
  margin: 0 auto;
}
.petit_btx-use-neuronox-list__img {
  margin-top: 10px;
}
@media all and (min-width: 768px) {
  .petit_btx-use-neuronox-list {
    width: 330px;
  }
  .petit_btx-use-neuronox-list__item {
    width: auto;
  }
}

/* .petit_btx-case
================================================ */
.petit_btx-case__inner {
  padding-top: 15px;
  padding-bottom: 15px;
}
@media all and (min-width: 768px) {
  .petit_btx-case__inner {
    padding-top: 50px;
    padding-bottom: 50px;
  }
}

/* .petit_btx-use
================================================ */
.petit_btx-use .c-table01 th, .petit_btx-use .c-table01 td {
  text-align: center;
}
.petit_btx-use .c-table01 th {
  width: 27.3333333333%;
}
.petit_btx-use .c-table01 th:first-child {
  width: 18%;
}