.microscope .c-key {
  background-image: url(../img/key.jpg);
}

.microscope .c-box_inner_row {
  align-items: flex-start;
  margin-bottom: 1.5em;
}

.scope-usage-list {
  position: relative;
  margin-bottom: 50px;
  counter-reset: scope-usage-list;
}

.scope-usage-list .scope-usage-itm {
  margin-bottom: 50px;
}

.scope-usage-list .scope-usage-itm:last-child {
  margin-bottom: 0;
}

.scope-usage-list .scope-usage-itm .c-ttl_page_simple {
  position: relative;
  margin-bottom: 35px;
  padding-left: 70px;
}

.scope-usage-list .scope-usage-itm .c-ttl_page_simple::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 60px;
  height: 60px;
  line-height: 53px;
  background-color: #f2efec;
  color: #ff7902;
  font-size: 30px;
  font-weight: bold;
  text-align: center;
  content: counter(scope-usage-list, decimal-leading-zero);
  counter-increment: scope-usage-list;
  transform: translateY(-50%);
  border-radius: 50%;
}

.scope-usage-list .scope-usage-itm ul {
  margin-left: 25px;
}

.scope-usage-list .scope-usage-itm ul li::before {
  top: 50%;
  transform: translateY(-50%);
}

@media screen and (max-width:767px) {
  .microscope .c-key {
    background-image: url(../img/key_sp.jpg);
  }

  .scope-usage-list {
    margin-bottom: 35px;
  }

  .scope-usage-list .scope-usage-itm .c-ttl_page_simple {
    margin-bottom: 25px;
    padding-left: 50px;
  }

  .scope-usage-list .scope-usage-itm .c-ttl_page_simple::before {
    width: 45px;
    height: 45px;
    line-height: 42px;
    font-size: 25px;
  }
  .scope-usage-list .scope-usage-itm ul {
    margin-left: 18px;
  }
  .scope-usage-list .scope-usage-itm ul li::before {
    top: 9px;
    transform: initial;
  }
}