.tab-inner {
  width: 90%;
  max-width: 1000px;
  margin: 0 auto 5rem;
}

.tab_container {
  margin: 0 auto;
}

.tab_item {
  width: calc(100% / 3);
  text-align: center;
  display: block;
  float: left;
  cursor: pointer;
}

input[name="tab_item"] {
  display: none;
}

.tab_content {
  display: none;
  clear: both;
  overflow: hidden;
  padding: 4rem;
  background-color: #fff;
  font-feature-settings: normal;
  font-size: min(1.8vw, 16px);
  line-height: 1.6;
}

.tab_outer {
  margin: 0 0 2rem;
}

.tab_outer:last-child {
  margin: 0;
}

.tab_outer p {
 font-size: 14px;
}

.tab_os {
  margin: 0 0 1em;
  font-size: 16px;
  font-weight: 600;
  font-feature-settings: "palt";
}

.tab_title {
  margin: 0 0 .3em;
  color: #ec2d00;
  font-size: 18px;
  font-weight: 600;
}

.tab_note {
  margin: .5em 0 0;
  font-size: 12px;
}

.tab_image {
  width: 100%;
  margin: 1rem auto;
}

#tab1:checked~#tab1_content,
#tab2:checked~#tab2_content,
#tab3:checked~#tab3_content {
  display: block;
}

.tab_container input:checked+.tab_item {
  color: #fff;
}

.idt {
  padding-left: 1em;
  text-indent: -1em;
}


@media screen and (min-width: 1px) and (max-width: 743px) {

  .tab_content {
    padding: 1.5rem 1.5rem 2rem;
    font-size: min(3.73vw, 14px);
  }

  .tab_title {
    margin: 0 0 .4em;
    font-size: min(4.27vw, 16px);
  }

  .tab_note {
    font-size: min(2.67vw, 10px);
  }

}

@media screen and (min-width: 744px) and (max-width: 1024px) {}