@media screen and (min-width: 768px) {
  .l_sec {
    box-sizing: border-box;
    line-height: 1.7;
    font-size: 16px;
  }
  .l_sec::before, .l_sec::after {
    box-sizing: border-box;
  }
  .l_sec * {
    box-sizing: border-box;
  }
  .l_sec *::before, .l_sec *::after {
    box-sizing: border-box;
  }
  .l_sec img {
    display: inline-block;
    max-width: 100%;
    height: auto;
    vertical-align: middle;
  }
  .sec_main .block_01 .box_01 h1 {
    margin-bottom: 20px;
  }
}
@media screen and (max-width: 767px) {
  .l_sec {
    box-sizing: border-box;
    line-height: 1.7;
    font-size: min(4.2666666667vw, 32px);
  }
  .l_sec::before, .l_sec::after {
    box-sizing: border-box;
  }
  .l_sec * {
    box-sizing: border-box;
  }
  .l_sec *::before, .l_sec *::after {
    box-sizing: border-box;
  }
  .l_sec img {
    display: inline-block;
    max-width: 100%;
    height: auto;
    vertical-align: middle;
  }
  .sec_main .block_01 .box_01 h1 {
    margin-bottom: 5.3333333333vw;
  }
}