@media screen and (min-width: 769px), print {
  .eco .reference_value {
    margin: 45px auto 66px;
    width: 666px;
  }
  .eco .reference_value_ttl {
    font-size: 2.2rem;
    font-weight: 600;
    text-align: center;
    position: relative;
  }
  .eco .reference_value_ttl:before, .eco .reference_value_ttl:after {
    content: "";
    display: block;
    width: 153px;
    height: 2px;
    position: absolute;
    top: 16px;
    background-color: #000;
  }
  .eco .reference_value_ttl:before {
    left: 0;
  }
  .eco .reference_value_ttl:after {
    right: 0;
  }
  .eco .btn_area {
    margin-block: 40px 80px;
  }
  .eco-flow .flow_step {
    margin-top: 34px;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    gap: 50px;
  }
  .eco-flow .flow_item {
    -webkit-box-flex: 1;
       -moz-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
  }
  .eco-flow .flow_item + .flow_item {
    position: relative;
  }
  .eco-flow .flow_item + .flow_item:before {
    content: "";
    display: block;
    width: 26px;
    height: 21px;
    background: url(../images/eco_flow_arrow.svg) no-repeat center/contain;
    position: absolute;
    left: -35px;
    top: 126px;
  }
  .eco-flow .flow_item:nth-of-type(2) {
    text-align: center;
  }
  .eco-flow .flow_item:nth-of-type(2) .flow_ttl {
    -webkit-box-pack: center;
       -moz-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
  }
  .eco-flow .flow_item:nth-of-type(3) .flow_ttl span {
    margin-left: 50px;
  }
  .eco-flow .flow_ttl {
    font-size: 1.4rem;
    letter-spacing: 2.8px;
    margin-bottom: 27px;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
       -moz-box-align: center;
        -ms-flex-align: center;
            align-items: center;
  }
  .eco-flow .flow_ttl span {
    color: #fff;
    display: inline-block;
    background-color: #000;
    font-size: 1.4rem;
    font-weight: 600;
    width: 24px;
    height: 24px;
    display: -webkit-inline-box;
    display: -moz-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
       -moz-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
       -moz-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    margin-right: 12px;
  }
  .eco-flow .flow_ttl em {
    font-style: normal;
    font-size: 1.6rem;
    font-weight: 600;
  }
  .eco-flow .flow_list {
    margin-top: 30px;
    text-align: left;
  }
  .eco-flow .flow_list dt {
    font-size: 1.6rem;
    font-weight: 600;
    padding-block: 4px;
    margin-bottom: 8px;
    border-bottom: 1px solid #000;
  }
  .eco-flow .flow_note {
    margin-top: 24px;
  }
  .eco-flow .flow_note .note {
    font-size: 1.4rem;
  }
  .eco-flow .flow_figure {
    margin-top: 40px;
  }
  .eco-flow .flow_figure .figure_list {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    gap: 40px;
  }
  .eco-flow .flow_figure .figure_item {
    -webkit-box-flex: 1;
       -moz-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
  }
  .eco-flow .flow_figure .figure_item figcaption .ttl {
    font-size: 2.2rem;
    font-weight: 600;
    margin-block: 18px 10px;
  }
  .eco_recycle {
    margin-top: 80px;
  }
  .eco_recycle .recycle_list {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    gap: 24px;
    margin-top: 24px;
  }
  .eco_recycle .recycle_item .ttl {
    font-size: 1.8rem;
    font-weight: 600;
    margin-top: 10px;
  }
}

@media screen and (max-width: 768px) {
  .eco .reference_value {
    margin: 6.15385vw auto;
  }
  .eco .reference_value_ttl {
    font-size: 4.61538vw;
    font-weight: 600;
    text-align: center;
    position: relative;
  }
  .eco .reference_value_ttl:before, .eco .reference_value_ttl:after {
    content: "";
    display: block;
    width: 6.15385vw;
    height: 0.51282vw;
    position: absolute;
    top: 3.07692vw;
    background-color: #000;
  }
  .eco .reference_value_ttl:before {
    left: 0;
  }
  .eco .reference_value_ttl:after {
    right: 0;
  }
  .eco .btn_area {
    margin-block: 6.15385vw 14.35897vw;
  }
  .eco-flow .flow_step {
    margin-top: 6.15385vw;
  }
  .eco-flow .flow_item {
    text-align: center;
  }
  .eco-flow .flow_item + .flow_item {
    margin-top: 14.87179vw;
    position: relative;
  }
  .eco-flow .flow_item + .flow_item:before {
    content: "";
    display: block;
    width: 6.66667vw;
    height: 5.38462vw;
    background: url(../images/eco_flow_arrow.svg) no-repeat center/contain;
    position: absolute;
    left: 0;
    right: 0;
    margin: auto;
    top: -10.25641vw;
    -webkit-transform: rotate(90deg);
       -moz-transform: rotate(90deg);
        -ms-transform: rotate(90deg);
            transform: rotate(90deg);
  }
  .eco-flow .flow_item:nth-of-type(1) img {
    width: 76.92308vw;
  }
  .eco-flow .flow_item:nth-of-type(2) .flow_ttl {
    -webkit-box-pack: center;
       -moz-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
  }
  .eco-flow .flow_item:nth-of-type(2) img {
    width: 48.20513vw;
  }
  .eco-flow .flow_item:nth-of-type(3) .flow_ttl span {
    margin-left: 17.17949vw;
  }
  .eco-flow .flow_item:nth-of-type(3) img {
    width: 82.5641vw;
  }
  .eco-flow .flow_ttl {
    font-size: 3.58974vw;
    letter-spacing: 2.8px;
    margin-bottom: 16px;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
       -moz-box-align: center;
        -ms-flex-align: center;
            align-items: center;
  }
  .eco-flow .flow_ttl span {
    color: #fff;
    display: inline-block;
    background-color: #000;
    font-weight: 600;
    width: 6.15385vw;
    height: 6.15385vw;
    display: -webkit-inline-box;
    display: -moz-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
       -moz-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
       -moz-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    margin-right: 3.07692vw;
  }
  .eco-flow .flow_ttl em {
    font-style: normal;
    font-weight: 600;
  }
  .eco-flow .flow_list {
    margin-top: 6.15385vw;
    text-align: left;
  }
  .eco-flow .flow_list dt {
    font-size: 3.58974vw;
    font-weight: 600;
    padding-block: 2.05128vw;
    margin-bottom: 2.05128vw;
    border-bottom: 1px solid #000;
  }
  .eco-flow .flow_note {
    margin-top: 6.15385vw;
  }
  .eco-flow .flow_note .note {
    font-size: 3.07692vw;
  }
  .eco-flow .flow_figure {
    margin-top: 10.25641vw;
  }
  .eco-flow .flow_figure .figure_item + .figure_item {
    margin-top: 6.15385vw;
  }
  .eco-flow .flow_figure .figure_item figcaption .ttl {
    font-size: 4.61538vw;
    font-weight: 600;
    margin-block: 5.12821vw 4.10256vw;
  }
  .eco_recycle {
    margin-top: 14.35897vw;
  }
  .eco_recycle .recycle_list {
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: (1fr)[2];
        grid-template-columns: repeat(2, 1fr);
    gap: 6.15385vw 4.10256vw;
    margin-top: 6.15385vw;
  }
  .eco_recycle .recycle_item .ttl {
    font-size: 3.58974vw;
    font-weight: 600;
    margin-top: 2.05128vw;
  }
}