@media screen and (min-width: 768px) {
  main {
    overflow: unset;
  }
}

#key {
  background-image: url("../img/course/key.jpg");
}

#sec1 {
  padding: 10vw 0 15vw;
}

#sec1 .inner {
  position: relative;
  padding-top: 9vw;
  margin-top: 10vw;
}

#sec1 h2 {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  top: 0;
  font-weight: 600;
}

#sec1 h2 .fz48 {
  letter-spacing: 0.15em;
}

#sec1 h2 .fz68 {
  font-size: 10vw;
  letter-spacing: 0.05em;
}

#sec1 h2 .fz112 {
  font-size: 13vw;
  letter-spacing: -0.16em;
}

#sec1 h2 .fz120 {
  display: inline-block;
  font-size: 16vw;
  letter-spacing: 0;
  position: relative;
}

#sec1 h2 .deco1 {
  right: -7vw;
  margin-bottom: -13vw;
}

#sec1 h2 .deco2 {
  transform: rotate(180deg);
  margin-top: -10vw;
  left: -7vw;
}

#sec1 .img {
  height: 110vw;
  margin-bottom: 8vw;
}

#sec1 .txt {
  padding: 0 4vw;
}

@media screen and (min-width: 768px) {
  #sec1 {
    padding: 77px 0 116px;
  }
  #sec1 .inner {
    max-width: 1250px;
    width: 100%;
    padding-top: 64px;
    margin: 0 auto;
  }
  #sec1 h2 .fz68 {
    font-size: 68px;
    margin-top: -3px;
  }
  #sec1 h2 .fz112 {
    font-size: 112px;
    position: relative;
    left: 3px;
  }
  #sec1 h2 .fz120 {
    font-size: 107px;
  }
  #sec1 h2 .deco1 {
    right: -58px;
    margin: -18px 0 -94px;
  }
  #sec1 h2 .deco2 {
    margin-top: -66px;
    left: -44px;
  }
  #sec1 .img {
    height: 700px;
    margin-bottom: 45px;
  }
  #sec1 .txt {
    padding: 0;
    text-align: center;
  }
}

#sec2 {
  padding: 10vw 0;
}

#sec2 h2 {
  width: 70vw;
  margin: 0 auto 8vw;
}

#sec2 .col-left {
  position: relative;
  width: 92vw;
  margin: 0 auto 10vw;
}

#sec2 .col-left .ttl {
  font-size: 7vw;
  font-weight: 600;
  line-height: 10vw;
  letter-spacing: 0.15em;
  border-radius: 3vw;
  border: 3px solid;
  position: absolute;
  right: 4vw;
  bottom: 4vw;
  z-index: 1;
  padding: 4vw 2vw;
  text-shadow: 0 0 10px #000, 0 0 10px #000;
}

#sec2 .col-left .ttl:before {
  content: '';
  border: 1px solid;
  border-radius: 2vw;
  position: absolute;
  left: 1vw;
  right: 1vw;
  top: 1vw;
  bottom: 1vw;
}

#sec2 .col-left .ttl .db {
  margin-top: 11vw;
}

#sec2 .col-right {
  padding: 0 4vw;
}

#sec2 .col-right .row {
  margin-bottom: 10vw;
}

#sec2 .col-right .row .ttl {
  margin-bottom: 5vw;
  letter-spacing: 0.15em;
  position: relative;
}

#sec2 .col-right .row .ttl:after {
  content: '';
  height: 1px;
  background: #fff;
  position: absolute;
  top: 49%;
  left: 20vw;
  right: 0vw;
}

#sec2 .col-right .row dl dt {
  margin-bottom: 5vw;
}

#sec2 .col-right .row dl dt .dot {
  display: inline-block;
  position: relative;
}

#sec2 .col-right .row dl dt .dot:before {
  content: '';
  width: 1.9vw;
  height: 1.9vw;
  background: #d90211;
  border-radius: 50%;
  position: absolute;
  top: -2vw;
  left: 50%;
  transform: translateX(-50%);
}

@media screen and (min-width: 768px) {
  #sec2 {
    padding: 0;
  }
  #sec2 .inner {
    position: relative;
    display: flex;
    align-items: flex-start;
  }
  #sec2 h2 {
    width: 50%;
    margin: 0;
    position: absolute;
    left: 50%;
    top: 22px;
    z-index: 1;
    text-align: center;
    padding-left: 87px;
  }
  #sec2 h2 img {
    width: 395px;
    height: auto;
  }
  #sec2 .col-left {
    width: 50%;
    position: sticky;
    top: 0;
    margin: 0;
    z-index: 1;
  }
  #sec2 .col-left .ttl {
    font-size: 40px;
    line-height: 55px;
    border-radius: 15px;
    border-width: 5px;
    right: 36px;
    bottom: 36px;
    padding: 36px 19px 29px;
    text-shadow: none;
  }
  #sec2 .col-left .ttl:before {
    border-width: 2px;
    border-radius: 6px;
    left: 5px;
    right: 5px;
    top: 5px;
    bottom: 5px;
  }
  #sec2 .col-left .ttl .db {
    margin-top: 65px;
  }
  #sec2 .col-left .img {
    height: 100vh;
  }
  #sec2 .col-right {
    width: 50%;
    padding: 168px 30px 0px;
  }
  #sec2 .col-right .wrapper {
    max-width: 397px;
    width: 100%;
    margin: 0 auto;
  }
  #sec2 .col-right .row {
    margin-bottom: 47px;
  }
  #sec2 .col-right .row .ttl {
    margin-bottom: 42px;
  }
  #sec2 .col-right .row .ttl:after {
    top: 53%;
    left: -390px;
    right: 409px;
  }
  #sec2 .col-right .row dl {
    padding-left: 5px;
  }
  #sec2 .col-right .row dl dt {
    margin-bottom: 32px;
    line-height: 45px;
  }
  #sec2 .col-right .row dl dt .dot:before {
    width: 11px;
    height: 11px;
    top: -16px;
  }
  #sec2 .col-right .row dl dd {
    margin: 0 5px 0 2px;
  }
  #sec2 .col-right .row1 .ttl {
    margin-bottom: 29px;
  }
  #sec2 .col-right .row1 dl dt {
    margin-bottom: 24px;
  }
  #sec2 .col-right .row2 {
    margin-bottom: 52px;
  }
}

#sec3 {
  position: relative;
  z-index: 0;
}

#sec3:after {
  content: '';
  background-image: url("../img/shared/bg2.jpg");
  background-size: 60vw;
  position: absolute;
  left: 0;
  right: 0;
  top: 15vw;
  bottom: 0;
  z-index: -3;
}

#sec3 .blk1 {
  padding: 26vw 0 20vw;
  position: relative;
}

#sec3 .blk1:before {
  content: '';
  background-image: url("../img/course/sec3_bg_img1.png");
  background-repeat: no-repeat;
  background-size: 134%;
  background-position: 50% 0%;
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  z-index: -1;
  opacity: 0.6;
}

#sec3 .blk1:after {
  content: '';
  height: 30vw;
  background-image: url("../img/course/sec3_bg_before.png");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center top;
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: -2;
}

#sec3 .blk1 h2 span {
  font-size: 7vw;
  line-height: 10vw;
  letter-spacing: 0.05em;
  margin-bottom: 3vw;
  text-shadow: 0 0 3px #000, 0 0 10px #000;
}

#sec3 .blk1 h2 img {
  width: 50vw;
  margin: 0 auto;
}

#sec3 .blk2 {
  position: relative;
  z-index: 0;
  padding: 0 4vw 15vw;
  color: #000;
}

#sec3 .blk2:before {
  content: '';
  background-image: url("../img/course/sec3_bg_img2.png");
  background-repeat: no-repeat;
  background-size: 200%;
  background-position: 50%;
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  z-index: -1;
}

#sec3 .blk2 .img {
  margin-bottom: 8vw;
}

#sec3 .blk2 .title {
  border-bottom: 1px solid #fff;
  padding-bottom: 4vw;
  margin-bottom: 5vw;
}

#sec3 .blk2 .title .name {
  font-size: 7vw;
  letter-spacing: 0.05em;
  line-height: 10vw;
  margin-bottom: 4vw;
}

#sec3 .blk2 .title .price {
  font-size: 5.34vw;
  letter-spacing: 0.05em;
  line-height: 8vw;
}

#sec3 .blk2 .title .price small {
  font-size: 4.8vw;
}

#sec3 .blk2 .list dl {
  width: 100%;
  display: table;
}

#sec3 .blk2 .list dl dt {
  width: 100px;
  display: table-cell;
}

#sec3 .blk2 .list dl dd {
  display: table-cell;
}

#sec3 .blk2 .list dl dd span.hide-sp {
  display: none;
}

#sec3 .blk2 .list dl dd span.db {
  margin: -5px 0 5px;
}

#sec3 .blk2 .list dl + dl {
  margin-top: 10px;
}

#sec3 .blk2 .set1 {
  margin-bottom: 15vw;
}

#sec3 .blk2 .set1 .note {
  margin-bottom: 2vw;
}

#sec3 .blk2 .set1 .box {
  border: 1px solid #fff;
  padding: 8vw 4vw;
  text-align: center;
}

#sec3 .blk2 .set2 {
  margin-bottom: 15vw;
}

    #sec3 .blk2 .set2 .col-text .list{
      text-align: center;
    }



@media screen and (min-width: 768px) {
  #sec3 {
    z-index: 1;
  }
  #sec3:after {
    background-size: auto;
    top: 200px;
  }
  #sec3 .blk1 {
    padding: 174px 30px 167px;
  }
  #sec3 .blk1:before {
    background-size: 100%;
    bottom: -500px;
    opacity: 1;
    top: -43px;
  }
  #sec3 .blk1:after {
    height: 314px;
    top: -43px;
  }
  #sec3 .blk1 .inner {
    max-width: 1088px;
    width: 100%;
    margin: 0 auto;
  }
  #sec3 .blk1 h2 {
    display: flex;
    justify-content: flex-end;
    align-items: flex-start;
    position: relative;
    padding-right: 23px;
  }
  #sec3 .blk1 h2:before {
    content: '';
    width: 2px;
    background: #fff;
    position: absolute;
    right: 5px;
    top: -122px;
    bottom: 82px;
  }
  #sec3 .blk1 h2:after {
    content: '';
    width: 2px;
    background: #fff;
    position: absolute;
    right: 0;
    top: -122px;
    bottom: 82px;
  }
  #sec3 .blk1 h2 span {
    order: 2;
    font-size: 40px;
    line-height: 60px;
    margin-bottom: 0;
    text-shadow: none;
  }
  #sec3 .blk1 h2 img {
    width: 128px;
    margin: 191px 3px 0 0;
  }
  #sec3 .blk2 {
    padding: 0 0 105px;
  }
  #sec3 .blk2:before {
    background-size: cover;
    background-position: 50% 0%;
    top: 37px;
  }
  #sec3 .blk2 .img {
    margin-bottom: 0;
  }
  #sec3 .blk2 .title {
    padding-bottom: 28px;
    margin-bottom: 20px;
  }
  #sec3 .blk2 .title .name {
    font-size: 40px;
    line-height: 70px;
    margin-bottom: -2px;
  }
  #sec3 .blk2 .title .price {
    font-size: 30px;
    line-height: 40px;
  }
  #sec3 .blk2 .title .price small {
    font-size: 26px;
  }
  #sec3 .blk2 .list dl {
    width: 100%;
    display: table;
  }
  #sec3 .blk2 .list dl dt {
    width: 123px;
    display: table-cell;
  }
  #sec3 .blk2 .list dl dd {
    display: table-cell;
  }
  #sec3 .blk2 .list dl dd span.hide-sp {
    display: inline-block;
  }
  #sec3 .blk2 .list dl dd span.db {
    margin: -8px 0 0;
  }
  #sec3 .blk2 .list dl + dl {
    margin-top: 10px;
  }
  #sec3 .blk2 .set1 {
    max-width: 1294px;
    width: 100%;
    margin: 0 auto 86px;
  }
  #sec3 .blk2 .set1 .img {
    order: 2;
    max-width: 754px;
    width: calc(100% - 532px);
    height: 616px;
    position: relative;
    z-index: 1;
  }
  #sec3 .blk2 .set1 .col-text {
    order: 1;
    width: 567px;
    margin: 2px -35px 0 0;
  }
  #sec3 .blk2 .set1 .note {
    margin: 0 0 15px 12px;
  }
  #sec3 .blk2 .set1 .list,
  #sec3 .blk2 .set1 .title {
    width: 372px;
    margin: 0 auto;
  }
  #sec3 .blk2 .set1 .title {
    margin-bottom: 27px;
  }
  #sec3 .blk2 .set1 .list {
    padding-left: 15px;
  }
  #sec3 .blk2 .set1 .box {
    padding: 36px 16px 54px 0;
        
  }
  #sec3 .blk2 .set2 {
    max-width: 1310px;
    width: 100%;
    margin: 0 auto 112px;
  }
  #sec3 .blk2 .set2 .col-img {
    max-width: 719px;
    width: calc(100% - 530px);
    margin-right: 36px;
  }
  #sec3 .blk2 .set2 .col-img .img {
    max-width: 673px;
    height: 487px;
    margin: 0 0px 0 auto;
  }
  #sec3 .blk2 .set2 .col-img .simg {
    width: 504px;
    margin: 41px 0 0 0px;
  }
  #sec3 .blk2 .set2 .col-text {
    width: 500px;
    margin-top: 180px;
  }
  #sec3 .blk2 .set2 .col-text .list {
    padding-left: 19px;
  }
  #sec3 .blk2 .set2 .col-text .list dl dt {
    width: 126px;
  }
  #sec3 .blk2 .set2 .col-text .title {
    /* padding-bottom: 46px; */
    margin-bottom: 43px;
  }
  #sec3 .blk2 .set2 .col-text .title .name {
    margin-bottom: 12px;
  }
  #sec3 .blk2 .set3 {
    max-width: 1288px;
    width: 100%;
    margin: 0 auto;
  }
  #sec3 .blk2 .set3 .img {
    order: 2;
    max-width: 644px;
    width: calc(100% - 530px);
    height: 668px;
  }
  #sec3 .blk2 .set3 .col-text {
    order: 1;
    width: 500px;
    margin: 36px 74px 0 0;
  }
  #sec3 .blk2 .set3 .col-text .title {
    padding-bottom: 44px;
    margin-bottom: 45px;
  }
  #sec3 .blk2 .set3 .col-text .title .name {
    margin-bottom: 3px;
  }
  #sec3 .blk2 .set3 .col-text .list {
    width: 434px;
    margin: 0 auto;
  }
  #sec3 .blk2 .set3 .col-text .list dl dt {
    width: 126px;
  }
}

@media screen and (min-width: 768px) and (max-width: 1300px) {
  #sec3 .blk1:before {
    background-size: 125%;
  }
  #sec3 .blk2 .set2 {
    width: 98%;
    margin-left: 0;
    margin-right: 0;
  }
  #sec3 .blk2 .set3 {
    width: 98%;
    margin-right: 0;
  }
  #sec3 .blk2 .set3 .col-text {
    margin-right: 30px;
  }
}

#sec4 {
  position: relative;
  z-index: 0;
  padding: 15vw 0;
  background: #000;
}

#sec4 .img {
  height: 94vw;
  position: absolute;
  left: 0;
  right: 0;
  top: 30vw;
  z-index: -1;
}

#sec4 .img .object-cover {
  object-position: 50% 0%;
}

#sec4 h2 {
  margin: 0 0 4vw 4vw;
  position: relative;
}

#sec4 h2:before {
  content: '';
  width: 6vw;
  border-top: 3px double;
  position: absolute;
  left: -8vw;
  top: 6vw;
}

#sec4 ul {
  margin-bottom: 38vw;
}

#sec4 ul li {
  width: 16%;
  font-size: 3.6vw;
  line-height: 6vw;
  letter-spacing: 0.1em;
  position: relative;
}

#sec4 ul li:after {
  content: '';
  width: 1px;
  height: 6.4vw;
  background: #fff;
  position: absolute;
  left: 49%;
  bottom: -7vw;
}

#sec4 ul li span.db {
  background: #fff;
  color: #000;
}

#sec4 ul li small {
  font-size: 2.5vw;
}

#sec4 ul .name1 {
  margin-top: 10vw;
}

#sec4 ul .name1:after {
  height: 5vw;
  bottom: -5vw;
}

#sec4 ul .name2 {
  margin: 7vw 0 0 1vw;
}

#sec4 ul .name2:after {
  height: 5vw;
  bottom: -5vw;
}

#sec4 ul .name3 {
  margin: 3vw 0 0 1vw;
}

#sec4 ul .name3:after {
  bottom: -4vw;
  height: 4.8vw;
}

#sec4 ul .name4 {
  margin: 2vw 0 0 5vw;
}

#sec4 ul .name4:after {
  bottom: -4vw;
  height: 4vw;
}

#sec4 ul .name5 {
  margin-left: 7vw;
}

@media screen and (min-width: 768px) {
  #sec4 {
    padding: 72px 0 0px;
    overflow: hidden;
    height: 1130px;
  }
  #sec4 .img {
    height: 1130px;
    top: 0;
    z-index: -1;
  }
  #sec4 .wrap {
    position: static;
  }
  #sec4 h2 {
    line-height: 88px;
    margin: 0 0 -64px -35px;
  }
  #sec4 h2:before {
    width: auto;
    border-top-width: 7px;
    left: -50vw;
    right: calc(50% + 544px);
    top: 48px;
  }
  #sec4 h2 .cl-red {
    margin-right: -16px;
  }
  #sec4 ul {
    margin: 0 0 0px -26px;
  }
  #sec4 ul li {
    width: 128px;
    font-size: 30px;
    line-height: 47px;
    letter-spacing: 0.2em;
  }
  #sec4 ul li:after {
    height: 105px;
    left: 50%;
    bottom: -109px;
  }
  #sec4 ul li span.db {
    margin: 5px 0 -2px;
  }
  #sec4 ul li small {
    font-size: 24px;
    margin: 0 -14px;
  }
  #sec4 ul .name1 {
    margin-top: 145px;
  }
  #sec4 ul .name1:after {
    height: 59px;
    bottom: -63px;
  }
  #sec4 ul .name2 {
    margin: 111px 0 0 50px;
  }
  #sec4 ul .name2:after {
    height: 58px;
    bottom: -61px;
  }
  #sec4 ul .name3 {
    margin: 71px 0 0 80px;
  }
  #sec4 ul .name3:after {
    bottom: -41px;
    height: 37px;
  }
  #sec4 ul .name4 {
    margin: 31px 0 0 102px;
  }
  #sec4 ul .name4:after {
    bottom: -69px;
    height: 66px;
  }
  #sec4 ul .name5 {
    margin-left: 124px;
  }
  #sec4 .txt {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 111px;
    z-index: 1;
    text-align: center;
  }
}

@media screen and (min-width: 768px) and (max-width: 1200px) {
  #sec4 h2 {
    margin-left: 0;
  }
  #sec4 h2:before {
    right: calc(50% + 520px);
  }
}

@media screen and (min-width: 1520px) {
  #sec4 {
    height: 75.3vw;
    padding-top: 4.8vw;
  }
  #sec4 h2 {
    font-size: 3.2vw;
    line-height: 5.9vw;
    margin: 0 0 -4.3vw -2.3vw;
  }
  #sec4 h2:before {
    top: 3.2vw;
    right: calc(50% + 36.3vw);
  }
  #sec4 h2 .fz60 {
    font-size: 4vw;
    line-height: 4.7vw;
  }
  #sec4 .img {
    height: 75.3vw;
  }
  #sec4 .wrap {
    width: 66.7vw;
  }
  #sec4 ul {
    margin: 0 0 0 -1.7vw;
  }
  #sec4 ul li {
    width: 8.5vw;
    font-size: 2vw;
    line-height: 3.1vw;
  }
  #sec4 ul li:after {
    height: 7.0vw;
    bottom: -7.3vw;
  }
  #sec4 ul .name1 {
    margin-top: 9.7vw;
  }
  #sec4 ul .name1:after {
    height: 3.9vw;
    bottom: -4.2vw;
  }
  #sec4 ul .name2 {
    margin: 7.4vw 0 0 3.3vw;
  }
  #sec4 ul .name2:after {
    height: 3.9vw;
    bottom: -4.1vw;
  }
  #sec4 ul .name3 {
    margin: 4.7vw 0 0 5.3vw;
  }
  #sec4 ul .name3:after {
    height: 2.5vw;
    bottom: -2.7vw;
  }
  #sec4 ul .name4 {
    margin: 2.1vw 0 0 6.8vw;
  }
  #sec4 ul .name4:after {
    height: 4.4vw;
    bottom: -4.6vw;
  }
  #sec4 ul .name5 {
    margin-left: 8.3vw;
  }
}

#sec5 {
  background-image: url("../img/course/sec5_bg.jpg");
  background-size: cover;
  background-position: 50%;
  padding: 20vw 0 15vw;
}

#sec5 h2 {
  position: relative;
  margin-bottom: 8vw;
}

#sec5 h2:before {
  content: '';
  height: 17vw;
  border-left: 4px double;
  position: absolute;
  left: 49%;
  top: -20vw;
}

#sec5 .txt {
  margin-bottom: 8vw;
}

@media screen and (min-width: 768px) {
  #sec5 {
    padding: 186px 0 118px;
  }
  #sec5 h2 {
    margin-bottom: 32px;
    padding-left: 6px;
    line-height: 65px;
  }
  #sec5 h2:before {
    height: 146px;
    border-width: 7px;
    left: 49.7%;
    top: -186px;
  }
  #sec5 .txt {
    text-align: center;
    margin-bottom: 54px;
  }
}