@media screen and (min-width: 801px) {
  .hover-under-line, .btn-more a::after {
    content: "";
    width: 100%;
    height: 1px;
    -webkit-transform: scale(1, 1);
            transform: scale(1, 1);
    -webkit-transition: all 0.6s;
    transition: all 0.6s;
    background: #000;
    position: absolute;
    left: 0;
    bottom: 0;
  }
}
@media screen and (max-width: 800px) {
  .content-width {
    max-width: 84vw;
    margin: 0 auto;
    position: relative;
  }
}
@-webkit-keyframes hover-underline {
  0% {
    -webkit-transform-origin: right;
            transform-origin: right;
    -webkit-transform: scaleX(1);
            transform: scaleX(1);
  }
  50% {
    -webkit-transform-origin: right;
            transform-origin: right;
    -webkit-transform: scaleX(0);
            transform: scaleX(0);
  }
  50.1% {
    -webkit-transform-origin: left;
            transform-origin: left;
    -webkit-transform: scaleX(0);
            transform: scaleX(0);
  }
  100% {
    -webkit-transform-origin: left;
            transform-origin: left;
    -webkit-transform: scaleX(1);
            transform: scaleX(1);
  }
}
@keyframes hover-underline {
  0% {
    -webkit-transform-origin: right;
            transform-origin: right;
    -webkit-transform: scaleX(1);
            transform: scaleX(1);
  }
  50% {
    -webkit-transform-origin: right;
            transform-origin: right;
    -webkit-transform: scaleX(0);
            transform: scaleX(0);
  }
  50.1% {
    -webkit-transform-origin: left;
            transform-origin: left;
    -webkit-transform: scaleX(0);
            transform: scaleX(0);
  }
  100% {
    -webkit-transform-origin: left;
            transform-origin: left;
    -webkit-transform: scaleX(1);
            transform: scaleX(1);
  }
}
@media screen and (min-width: 801px) {
  .heading {
    font-size: 36px;
    text-align: center;
    line-height: 1.33;
    margin-bottom: 58px;
  }
  .category-title {
    margin-bottom: 34px;
  }
  section {
    overflow: hidden;
  }
  .about__inner {
    padding: 93px 44px 54px;
    overflow: hidden;
  }
  .about__title {
    font-size: 27px;
    font-weight: 700;
    letter-spacing: 0.1em;
    line-height: 1.7;
    margin-bottom: 37px;
  }
  .about__text {
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 0.1em;
    line-height: 2.333;
    -webkit-font-feature-settings: "palt";
    font-feature-settings: "palt";
    margin-bottom: 48px;
  }
  .about__text .sup {
    font-size: 11px;
    display: inline-block;
    vertical-align: 6px;
  }
  .about__graph {
    width: 385px;
    margin: 0 auto 59px;
  }
  .about__desc {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    margin-bottom: 58px;
  }
  .about__desc .text {
    width: 340px;
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 0.1em;
    line-height: 2.333;
    -webkit-font-feature-settings: "palt";
    font-feature-settings: "palt";
  }
  .about__desc .image {
    width: 78px;
    margin-right: 10px;
  }
  .about__box {
    width: 385px;
    margin: 0 auto 70px;
    padding: 25px 30px 38px;
    background-color: rgba(143, 146, 161, 0.1);
  }
  .about__box .text {
    font-size: 18.5px;
    font-weight: bold;
    letter-spacing: 0.03em;
    line-height: 2.27;
    margin-bottom: 17px;
  }
  .about__box .image {
    width: 117px;
    margin: 0 auto;
  }
  .about__howto {
    margin-bottom: 60px;
  }
  .about .howto__title {
    letter-spacing: 0.1em;
    margin-bottom: 22px;
  }
  .about .howto__desc {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    margin: 0 36px 0 32px;
  }
  .about .howto__text {
    width: 240px;
    font-size: 20px;
    font-weight: bold;
    line-height: 1.65;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    -webkit-box-align: start;
        -ms-flex-align: start;
            align-items: flex-start;
    margin: 11px 0;
  }
  .about .howto__text .num {
    width: 45px;
    margin-right: 14px;
  }
  .about .howto__text .small {
    font-size: 12.5px;
    line-height: 1.84;
    margin: 6px -11px 0 57px;
    display: block;
    text-indent: -1em;
    margin-left: 66px;
    letter-spacing: 0.06em;
  }
  .about .howto__image {
    width: 112px;
  }
  .about .howto__image:first-of-type {
    margin-bottom: 6px;
  }
  .about .howto__image:nth-of-type(2) {
    margin-top: -7px;
  }
  .about__message {
    font-size: 20.5px;
    font-weight: bold;
    line-height: 2;
    letter-spacing: 0.02em;
    margin-bottom: 42px;
  }
  .about .small li {
    font-size: 14.5px;
    font-weight: 500;
    letter-spacing: 0.05em;
    line-height: 2;
  }
  .main__box {
    height: 31.403%;
    height: 148px;
  }
}
@media screen and (max-width: 800px) {
  .heading {
    font-size: 6.9333333333vw;
    line-height: 1.46;
    text-align: center;
    margin-bottom: 9.5vw;
  }
  .category-title {
    line-height: 1.4;
    margin-bottom: 5vw;
  }
  .main__box {
    background-color: #989BAB;
    height: 49.0666666667vw;
  }
  .main__box .main-title {
    padding-top: 29.8666666667vw;
  }
  .main__image {
    position: relative;
  }
  .about__title {
    font-size: 5.0666666667vw;
    font-weight: bold;
    line-height: 1.789;
    letter-spacing: 0.1em;
    margin-bottom: 6vw;
  }
  .about__text {
    font-size: 3.4666666667vw;
    font-weight: 500;
    line-height: 2.4;
    margin-bottom: 11vw;
  }
  .about__text .sup {
    font-size: 2.6666666667vw;
    vertical-align: 1vw;
  }
  .about__inner {
    width: 84vw;
    margin: 0 auto;
    padding: 19vw 0 11vw;
  }
  .about__desc {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    margin-bottom: 11vw;
  }
  .about__desc .text {
    width: 64vw;
    font-size: 3.4666666667vw;
    font-weight: 500;
    line-height: 2.4;
  }
  .about__desc .image {
    width: 14.6666666667vw;
  }
  .about__graph {
    margin-bottom: 11vw;
  }
  .about__box {
    background-color: rgba(143, 146, 161, 0.1);
    padding: 5.5vw 7vw 8vw;
    margin-bottom: 13vw;
  }
  .about__box .text {
    font-size: 3.4666666667vw;
    font-weight: bold;
    line-height: 2.3846;
    margin-bottom: 5.5vw;
  }
  .about__box .image {
    width: 23.4666666667vw;
    margin: 0 auto;
  }
  .about__message {
    font-size: 4vw;
    -webkit-font-feature-settings: "palt";
            font-feature-settings: "palt";
    font-weight: bold;
    line-height: 2.2;
    letter-spacing: 0;
    margin-bottom: 10vw;
  }
  .about .small li {
    font-size: 2.6666666667vw;
    font-weight: 500;
    letter-spacing: 0.05em;
    line-height: 2;
  }
  .howto__title {
    letter-spacing: 0.15em;
    margin-bottom: 4vw;
  }
  .howto__desc {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    margin: 0 3vw 9.3vw 3vw;
  }
  .howto__text {
    width: 53.8666666667vw;
    font-size: 4vw;
    font-weight: bold;
    line-height: 1.6;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    -webkit-box-align: start;
        -ms-flex-align: start;
            align-items: flex-start;
    margin: 1.7vw 0;
  }
  .howto__text .num {
    width: 8.5333333333vw;
    margin-right: 2vw;
  }
  .howto__text .small {
    font-size: 2.6666666667vw;
    line-height: 1.5;
    margin: 1vw -1vw 0 2vw;
    display: block;
    text-indent: -1em;
    margin-left: 13vw;
    letter-spacing: 0.06em;
  }
  .howto__image {
    width: 22.9333333333vw;
  }
  .howto__image:first-of-type {
    margin-bottom: 1vw;
  }
  .howto__image:nth-of-type(2) {
    margin-top: -1vw;
  }
}
@media screen and (min-width: 801px) and (max-width: 1280px) {
  .about__title {
    font-size: 25px;
    letter-spacing: 0;
  }
  .about__text {
    font-size: 18px;
    letter-spacing: 0;
  }
  .about__text br {
    display: none;
  }
  .about__inner {
    padding-right: 16px;
    padding-left: 16px;
  }
  .about__graph {
    width: 100%;
  }
  .about__graph img {
    width: 100%;
  }
  .about__desc .text {
    font-size: 18px;
    letter-spacing: 0;
  }
  .about__desc .text br {
    display: none;
  }
  .about__box {
    width: 100%;
  }
  .about .howto__desc {
    margin: 0;
  }
  .about .howto__text {
    width: calc(100% - 100px);
  }
  .about .howto__image {
    width: 100px;
  }
  .about__message {
    font-size: 20px;
  }
  .about__message br {
    display: none;
  }
}