/*===============================================
●画面の横幅が769px以上(タブレット・PC)
===============================================*/
@media screen and (min-width: 769px) {

  /* メニューの下線 */
  header nav > ul > li:nth-of-type(2) > a {
    border-bottom: 1px solid #468876;
  }

  .bg_top {
    background: url(../images/about/bg_top.webp) top center no-repeat;
    background-size: cover
  }

  /* concept */
  #concept {
    position: relative;
    width: 960px;
    margin: 100px auto 0;
  }
  #concept > h2 {
    width: 161px;
    margin: 0 auto;
  }
  #concept > div {
    position: relative;
    width: 960px;
    margin: 20px auto 0;
    padding: 5px;
    border: 2px solid #468876;
    background-color: #ffffff;
  }
  #concept > div::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 30px 30px 0px 0px;
    border-color: #468876 transparent transparent transparent;
  }
  #concept > div::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    display: block;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0px 0px 30px 30px;
    border-color: transparent transparent #468876 transparent;
  }
  #concept > div > div {
    height: 50px;
    margin: 0 auto;
    padding-top: 17px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.1em;
    border: 1px solid #468876;
  }
  #concept > div > div > span {
    padding-bottom: 5px;
    background: url(../images/about/line01.webp) bottom center no-repeat;
    background-size: 100%;
  }
  #concept > p:nth-of-type(1) {
    margin
    : 25px auto 0;
    font-size: 20px;
    font-weight: 700;
  }
  #concept > ul {
    width: 690px;
    margin: 20px auto 0;
  }
  #concept > ul > li {
    position: relative;
    margin-bottom: 10px;
    padding-left: 18px;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.7;
    text-align: left;
  }
  #concept > ul > li > span.no {
    position: absolute;
    top: 0;
    left: 0;
  }
  #concept > ul > li > span.line {
    border-bottom: 1px solid #FEC47D;
  }
  #concept > img.illust01 {
    position: absolute;
    top: 0;
    left: -170px;
    width: 105px;
  }
  #concept > img.illust02 {
    position: absolute;
    bottom: -20px;
    right: -133px;
    width: 230px;
  }

  /* comment */
  #comment {
    position: relative;
    z-index: 2;
    width: 100%;
    min-height: 617px;
    margin: 80px auto 0;
  }
  #comment > div.inner {
    position: relative;
    z-index: 2;
    width: 95%;
    max-width: 1160px;
    margin: 0 auto;
    padding: 80px 0;
    background-color: #FFE4C4;
    border-radius: 30px;
  }
  #comment > div.inner::before {
    content: '';
    position: absolute;
    top: 8px;
    right: -10px;
    width: 100%;
    height: 100%;
    border-top: 2px solid #FFC47D;
    border-bottom: 2px solid #FFC47D;
    border-right: 2px solid #FFC47D;
    border-top-right-radius: 30px;
    border-bottom-right-radius: 30px;
  }
  #comment > div.inner > div {
    position: relative;
    width: 960px;
    margin: 0 auto;
  }
  #comment > div.inner > div > h2 {
    width: 442px;
    margin: 0;
  }
  #comment > div.inner > div > p:nth-of-type(1) {
    width: 530px;
    margin-top: 30px;
    font-size: 14px;
    line-height: 1.7;
    text-align: left;
  }
  #comment > div.inner > div > p:nth-of-type(2) {
    width: 530px;
    margin-top: 10px;
    font-size: 16px;
    font-weight: 700;
    line-height: 1.7;
    text-align: left;
  }
  #comment > div.inner > div > img {
    position: absolute;
    top: 60px;
    right: 0;
    width: 400px;
  }
  #comment > div.bg {
    position: absolute;
    z-index: 1;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    background-color: #FFE4C4;
  }
  #comment > div.bg::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 0;
    width: 100%;
    height: 100%;
    border-top: 2px solid #FFC47D;
    border-bottom: 2px solid #FFC47D;
  }

  /* work */
  #work {
    position: relative;
    width: 960px;
    margin: 100px auto 0;
  }
  #work > h2 {
    position: relative;
    z-index: 2;
    width: 455px;
    margin: 0;
  }
  #work > ul {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-top: 30px;
  }
  #work > ul > li {
    width: 300px;
    margin-bottom: 50px;
  }
  #work > ul > li > img {
    margin: 0 auto;
  }
  #work > ul > li > p:nth-of-type(1) {
    margin: 15px auto 0;
    font-size: 20px;
    font-weight: 700;
  }
  #work > ul > li > img.img {
    width: 50px;
    margin: 5px auto 0;
  }
  #work > ul > li > p:nth-of-type(2) {
    margin-top: 5px;
    font-size: 14px;
    line-height: 1.7;
    text-align: left;
  }
  #work > img.bg01 {
    position: absolute;
    z-index: 1;
    top: -313px;
    left: -386px;
    width: 627px;
  }
  #work .slide-arrow {
    opacity: 0;
  }

  /* features */
  #features {
    width: 100%;
    margin: 50px auto 0;
    padding-bottom: 120px;
    background-color: #86C47D;
  }
  #features > div.title {
    position: relative;
    width: 960px;
    margin: 0 auto;
    padding-top: 80px;
  }
  #features > div.title > h2 {
    width: 287px;
    margin: 0;
  }
  #features > div.title > img.illust03 {
    position: absolute;
    z-index: 1;
    top: -69px;
    right: -94px;
    width: 188px;
  }
  #features ul.slick-slider {
    margin-top: 40px;
  }
  #features ul.slick-slider li.slick-slide {
    position: relative;
    display: flex;
    width: 635px;
    padding: 80px 30px;
    background-color: #ffffff;
    border-radius: 30px;
  }
  #features ul.slick-slider li.slick-slide img.no {
    position: absolute;
    top: -22px;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: auto;
    height: 47px;
  }
  #features ul.slick-slider li.slick-slide img.txt {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 13px;
    margin: auto;
    width: 9px;
    height: auto;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(1) {
    position: relative;
    width: 220px;
    min-height: 140px;
    background: url(../images/about/features_bg.webp) top 33px right 26px no-repeat;
    background-size: 90px;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(1) > img.img01 {
    width: 89px;
    margin-top: 15px;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(1) > img.img02 {
    width: 74px;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(1) > img.img03 {
    width: 78px;
    margin-top: 18px;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(1) > p {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 0 auto;
    font-size: 20px;
    font-weight: 700;
    color: #468876;
    line-height: 1.5;
    letter-spacing: 0.1em;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(2) {
    flex: 1;
    padding-top: 15px;
    padding-right: 30px;
    font-size: 14px;
    line-height: 1.7;
    text-align: left;
  }
  #features .features_work_slider{
    opacity: 0;
    transition: opacity .3s linear;
  }
  #features .features_work_slider.slick-initialized{
    opacity: 1;
  }
  #features .slick-list {
    padding-top: 30px !important;
  }
  #features .slick-track {
    display: flex;
  }
  #features .slick-slide {
    height: auto !important;
    margin: 0 50px;
  }
  #features .slide-arrow {
    top: 48%;
    margin: auto;
    position: absolute;
    z-index: 10;
    width: 13px !important;
  }
  #features .prev-arrow {
    left: 21.5%;
    cursor: pointer;
  }
  #features .next-arrow {
    right: 21.5%;
    cursor: pointer;
  }

  #features .slick-dots {
    bottom: -70px;
  }
  #features .slick-dots li {
    margin: 0 10px;
  }
  #features .slick-dots li button {
    position: relative;
    width: 50px;
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    cursor: pointer;
  }
  #features .slick-dots li button:hover,
  #features .slick-dots li.slick-active button {
    color: #FFEB52;
  }
  #features .slick-dots li button:hover::before,
  #features .slick-dots li.slick-active button::before {
    content: '';
    position: absolute;
    top: -12px;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: 5px;
    height: 5px;
    background-color: #FFEB52;
    border-radius: 5px;
  }

  /* numbers */
  .wrap-bg {
    padding-bottom: 100px;
    background: url(../images/about/bg_btm.webp) top center no-repeat;
    background-size: cover;
  }

  #numbers {
    position: relative;
    width: 960px;
    margin: 0 auto;
    padding-top: 100px;
  }
  #numbers > h2 {
    width: 498px;
    margin: 0 auto;
  }
  #numbers > img.img {
    margin: 30px auto 0;
    width: 960px;
  }
  #numbers > ul {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin: 0 auto;
  }
  #numbers > ul > li {
    width: 470px;
    margin-top: 20px;
    filter: drop-shadow(3px 3px 5px rgba(70, 136, 118, 0.2));
  }
  #numbers > ul > li:nth-of-type(1),
  #numbers > ul > li:nth-of-type(2) {
    width: 960px;
  }
  #numbers > img.bg02 {
    position: absolute;
    z-index: 1;
    bottom: 0;
    right: -428px;
    width: 627px;
  }

  /* gallery */
  #gallery {
    position: relative;
    width: 960px;
    margin: 110px auto 0;
  }
  #gallery > h2 {
    position: relative;
    width: 197px;
    margin: 0;
  }
  #gallery > h2 > img.illust04 {
    position: absolute;
    top: -62px;
    right: -130px;
    width: 108px;
  }
  #gallery > ul {
    position: relative;
    z-index: 2;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin: 30px auto 0;
  }
  #gallery > ul > li {
    position: relative;
    width: 228px;
    border-radius: 10px;
    overflow: hidden;
  }
  #gallery > ul > li::before {
    content: '';
    position: absolute;
    z-index: 2;
    bottom: 10px;
    right: 10px;
    width: 30px;
    height: 30px;
    background: url(../images/about/gallery_kakudai.webp) top center no-repeat;
    background-size: 30px;
  }
  #gallery > ul > li > img {
    position: relative;
    z-index: 1;
  }
  #gallery > img.illust05 {
    position: absolute;
    bottom: -56px;
    right: -188px;
    width: 124px;
  }

  footer{
    margin-top: 0;
  }

}

/*===============================================
●画面の横幅が768px以下(スマホのみ)
===============================================*/
@media screen and (max-width: 768px) {

  .bg_top {
    background: url(../images/about/bg_top_sp.webp) top center no-repeat;
    background-size: 100%;
  }

  /* concept */
  #concept {
    position: relative;
    width: 90%;
    margin: 40px auto 0;
  }
  #concept > h2 {
    width: 93px;
    margin: 0 auto;
  }
  #concept > div {
    position: relative;
    margin: 20px auto 0;
    padding: 5px;
    background-color: #ffffff;
    border: 2px solid #468876;
  }
  #concept > div::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 35px 35px 0px 0px;
    border-color: #468876 transparent transparent transparent;
  }
  #concept > div::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    display: block;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0px 0px 35px 35px;
    border-color: transparent transparent #468876 transparent;
  }
  #concept > div > div {
    margin: 0 auto;
    padding: 20px;
    font-size: 14px;
    font-weight: 700;
    text-align: left;
    line-height: 1.8;
    border: 1px solid #468876;
  }
  #concept > div > div > span {
    padding-bottom: 5px;
    background: url(../images/about/line01.webp) bottom center no-repeat;
    background-size: 100%;
  }
  #concept > p:nth-of-type(1) {
    margin: 35px auto 0;
    font-size: 25px;
    font-weight: 700;
  }
  #concept > ul {
    margin: 20px auto 0;
  }
  #concept > ul > li {
    position: relative;
    z-index: 2;
    margin-bottom: 10px;
    padding-left: 18px;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.7;
    text-align: left;
  }
  #concept > ul > li > span.no {
    position: absolute;
    top: 0;
    left: 0;
  }
  #concept > ul > li > span.line {
    border-bottom: 1px solid #FEC47D;
  }
  #concept > img.illust01 {
    position: absolute;
    z-index: 1;
    top: -40px;
    left: -13px;
    width: 57px;
  }
  #concept > img.illust02 {
    position: absolute;
    z-index: 1;
    bottom: -60px;
    right: -5px;
    width: 91px;
  }

  /* comment */
  #comment {
    position: relative;
    z-index: 2;
    width: 100%;
    margin: 80px auto 0;
  }
  #comment > div.inner {
    position: relative;
    z-index: 2;
    width: 95%;
    margin: 0;
    padding: 40px 0 30px;
    background-color: #FFE4C4;
    border-radius: 30px;
  }
  #comment > div.inner::before {
    content: '';
    position: absolute;
    top: 8px;
    right: -10px;
    width: 100%;
    height: 100%;
    border-top: 2px solid #FFC47D;
    border-bottom: 2px solid #FFC47D;
    border-right: 2px solid #FFC47D;
    border-top-right-radius: 30px;
    border-bottom-right-radius: 30px;
  }
  #comment > div.inner > div {
    position: relative;
    width: 90%;
    margin: 0 auto;
  }
  #comment > div.inner > div > h2 {
    width: 252px;
    margin: 0;
  }
  #comment > div.inner > div > p:nth-of-type(1) {
    margin-top: 20px;
    font-size: 14px;
    line-height: 1.7;
    text-align: left;
  }
  #comment > div.inner > div > p:nth-of-type(2) {
    margin-top: 10px;
    font-size: 16px;
    font-weight: 700;
    line-height: 1.7;
    text-align: left;
  }
  #comment > div.inner > div > img {
    width: 100%;
    margin-top: 25px;
  }
  #comment > div.bg {
    position: absolute;
    z-index: 1;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    background-color: #FFE4C4;
  }
  #comment > div.bg::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 0;
    width: 100%;
    height: 100%;
    border-top: 2px solid #FFC47D;
    border-bottom: 2px solid #FFC47D;
  }

  /* work */
  #work {
    position: relative;
    width: 100%;
    margin: 100px auto 0;
  }
  #work > h2 {
    position: relative;
    z-index: 2;
    width: 260px;
    margin: 0 auto;
  }
  #work ul {
    position: relative;
    z-index: 2;
    margin: 20px auto 0;
  }
  #work ul li {
    width: 100%;
    margin: 0 auto;
  }
  #work ul li > img {
    margin: 0 auto;
  }
  #work ul li > p:nth-of-type(1) {
    margin: 15px auto 0;
    font-size: 20px;
    font-weight: 700;
  }
  #work ul li > img.img {
    width: 50px;
    margin: 5px auto 0;
  }
  #work ul li > p:nth-of-type(2) {
    margin-top: 5px;
    font-size: 14px;
    line-height: 1.7;
    text-align: left;
  }
  #work .about_work_slider{
    opacity: 0;
    transition: opacity .3s linear;
  }
  #work .about_work_slider.slick-initialized{
    opacity: 1;
  }
  #work .slick-slide {
    padding: 0 15px;
  }
  #work .slide-arrow {
    top: 20%;
    margin: auto;
    position: absolute;
    z-index: 10;
    width: 4.5% !important;
  }
  #work .prev-arrow {
    left: 9.5%;
  }
  #work .next-arrow {
    right: 9.5%;
  }

  #work > img.bg01 {
    position: absolute;
    z-index: 1;
    top: -313px;
    left: -386px;
    width: 627px;
  }

  /* features */
  #features {
    width: 100%;
    margin: 60px auto 0;
    padding-bottom: 60px;
    background-color: #86C47D;
  }
  #features > div.title {
    position: relative;
    width: 100%;
    margin: 0 auto;
    padding-top: 30px;
  }
  #features > div.title > h2 {
    width: 165px;
    margin: 0 auto;
  }
  #features > div.title > img.illust03 {
    position: absolute;
    z-index: 1;
    top: -35px;
    right: 16px;
    width: 91px;
  }
  #features ul.slick-slider {
    margin-top: 25px;
  }
  #features ul.slick-slider li.slick-slide {
    position: relative;
    width: 100%;
    padding: 10px 0 40px;
    background-color: #ffffff;
    border-radius: 30px;
  }
  #features ul.slick-slider li.slick-slide img.no {
    position: absolute;
    top: -15px;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: auto;
    height: 31px;
  }
  #features ul.slick-slider li.slick-slide img.txt {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 13px;
    margin: auto;
    width: 9px;
    height: auto;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(1) {
    width: 100%;
    height: 80px;
    background: url(../images/about/features_bg.webp) bottom right 5px no-repeat;
    background-size: 71px;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(1) > img.img01 {
    position: absolute;
    top: 18px;
    right: 34px;
    width: 70px;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(1) > img.img02 {
    position: absolute;
    top: 16px;
    right: 33px;
    width: 45px;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(1) > img.img03 {
    position: absolute;
    top: 16px;
    right: 41px;
    width: 58px;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(1) > p {
    padding: 35px 30px 0 50px;
    font-size: 20px;
    font-weight: 700;
    color: #468876;
    line-height: 1.5;
    letter-spacing: 0.1em;
    text-align: left;
  }
  #features ul.slick-slider li.slick-slide > div:nth-of-type(2) {
    padding: 0 30px 0 50px;
    font-size: 14px;
    line-height: 1.7;
    text-align: left;
  }
  #features .features_work_slider{
    opacity: 0;
    transition: opacity .3s linear;
  }
  #features .features_work_slider.slick-initialized{
    opacity: 1;
  }
  #features .slick-list {
    padding-top: 30px !important;
  }
  #features .slick-track {
    display: flex;
  }
  #features .slick-slide {
    height: auto !important;
    margin: 0 10px;
  }
  #features .slide-arrow {
    top: 48%;
    margin: auto;
    position: absolute;
    z-index: 10;
    width: 6% !important;
    max-width: 25px;
  }
  #features .prev-arrow {
    left: 5.5%;
  }
  #features .next-arrow {
    right: 5.5%;
  }

  #features .slick-dots {
    bottom: -60px;
  }
  #features .slick-dots li {
    margin: 0 10px;
  }
  #features .slick-dots li button {
    position: relative;
    width: 50px;
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    cursor: pointer;
  }
  #features .slick-dots li button:hover,
  #features .slick-dots li.slick-active button {
    color: #FFEB52;
  }
  #features .slick-dots li button:hover::before,
  #features .slick-dots li.slick-active button::before {
    content: '';
    position: absolute;
    top: -12px;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: 5px;
    height: 5px;
    background-color: #FFEB52;
    border-radius: 5px;
  }


  /* numbers */
  .wrap-bg {
    padding-bottom: 80px;
    background: url(../images/about/bg_btm_sp.webp) top center no-repeat;
    background-size: cover;
  }

  #numbers {
    position: relative;
    width: 90%;
    margin: 0 auto;
    padding-top: 60px;
  }
  #numbers > h2 {
    width: 286px;
    margin: 0 auto;
  }
  #numbers > img.img {
    margin: 20px auto 0;
    width: 100%;
  }
  #numbers > ul {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin: 0 auto;
  }
  #numbers > ul > li {
    width: 48.5%;
    margin-top: 10px;
    filter: drop-shadow(3px 3px 5px rgba(70, 136, 118, 0.2));
  }
  #numbers > ul > li:nth-of-type(1),
  #numbers > ul > li:nth-of-type(2) {
    width: 100%;
  }
  #numbers > ul > li:nth-of-type(3),
  #numbers > ul > li:nth-of-type(4) {
    margin-top: 30px;
  }

  /* gallery */
  #gallery {
    position: relative;
    width: 90%;
    margin: 60px auto 0;
  }
  #gallery > h2 {
    position: relative;
    width: 161px;
    margin: 0 auto;
  }
  #gallery > h2 > img.illust04 {
    position: absolute;
    top: -46px;
    right: -80px;
    width: 80px;
  }
  #gallery > ul {
    position: relative;
    z-index: 2;
    display: flex;
    flex-wrap: wrap;
    margin: 20px auto 0;
  }
  #gallery > ul > li {
    position: relative;
    width: 24%;
    margin-right: 1.2%;
    margin-bottom: 5px;
    border-radius: 10px;
    overflow: hidden;
  }
  #gallery > ul > li:nth-of-type(4n) {
    margin-right: 0;
  }
  #gallery > ul > li::before {
    content: '';
    position: absolute;
    z-index: 2;
    bottom: 5px;
    right: 5px;
    width: 10px;
    height: 10px;
    background: url(../images/about/gallery_kakudai.webp) top center no-repeat;
    background-size: 10px;
  }
  #gallery > ul > li > img {
    position: relative;
    z-index: 1;
  }
  #gallery > img.illust05 {
    position: absolute;
    bottom: -51px;
    left: -8px;
    width: 51px;
  }

  footer{
    margin-top: 0;
  }

}