/*================== blog ====================*/
header {
  background: url(../img/course/key.jpg) no-repeat center/cover;
  min-height: 420px;
}

header .logo {
  position: absolute;
  top: 165px;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  width: 90%;
}

/*================== sec1 ====================*/
@media screen and (min-width: 767px) {
  header {
    min-height: 997px;
  }
  header .logo {
    position: relative;
    top: 0;
    left: 0;
    transform: translateX(0);
    margin: -40px 0 0 -25px;
    width: 832px;
  }
  header h1 {
    bottom: inherit;
    top: 50px;
  }
  header .menu-toggle {
    top: 265px;
  }
}

.navopen #sec1 .title h2 {
  opacity: 0;
}

#sec1 {
  position: relative;
  padding: 0 0 5vw;
}

#sec1::before {
  background: url(../img/course/sec1_bg.jpg) no-repeat bottom right;
  background-size: 150% auto;
  width: 100%;
  height: 100%;
  content: "";
  position: absolute;
  bottom: 20vw;
  right: 0;
  z-index: -1;
}

#sec1 .title {
  position: relative;
}

#sec1 .title h2 {
  position: relative;
  top: -10vw;
  padding-left: 0;
  z-index: 99;
  margin-bottom: -5vw;
  font-size: 8vw;
}

#sec1 .title h3 {
  margin-bottom: 5vw;
}

#sec1 .txt {
  text-align: justify;
  margin-bottom: 10vw;
  position: relative;
  z-index: 1;
}

#sec1 ul {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  max-width: 360px;
  margin: auto;
}

#sec1 ul li {
  background: url(../img/course/s.png) no-repeat center/cover;
  width: 156px;
  height: 156px;
  margin-bottom: 5vw;
  text-align: center;
  font-size: 14px;
  box-sizing: border-box;
  padding-top: 50px;
  font-weight: bold;
}

#sec1 ul li span {
  font-weight: bold;
  font-size: 20px;
}

@media screen and (min-width: 767px) {
  #sec1 {
    position: relative;
    padding: 0 0 200px;
  }
  #sec1::before {
    background: url(../img/course/sec1_bg.jpg) no-repeat bottom right;
    background-size: auto;
    width: 100%;
    height: 100%;
    content: "";
    position: absolute;
    bottom: 0;
    right: 0;
    z-index: -1;
  }
  #sec1 .title {
    position: relative;
  }
  #sec1 .title h2 {
    position: relative;
    top: -96px;
    padding-left: 0;
    z-index: 99;
    margin-bottom: -75px;
    font-size: 76px;
    line-height: 76px;
  }
  #sec1 .title h3 {
    margin-bottom: 10px;
  }
  #sec1 .txt {
    text-align: justify;
    width: 420px;
    margin-bottom: 50px;
    position: relative;
    z-index: 1;
  }
  #sec1 ul {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    max-width: 440px;
    margin: auto;
    position: absolute;
    top: 275px;
    right: -50px;
  }
  #sec1 ul li {
    background: url(../img/course/s.png) no-repeat center/cover;
    width: 216px;
    height: 216px;
    margin-bottom: 7px;
    text-align: center;
    font-size: 20px;
    box-sizing: border-box;
    padding-top: 73px;
  }
  #sec1 ul li span {
    font-weight: bold;
    font-size: 30px;
  }
}

/*================== sec2 ====================*/
#sec2 {
  position: relative;
  padding: 7vw 0 5vw;
  z-index: 1;
}

#sec2::before {
  background: url(../img/course/sec2_bg.jpg) no-repeat top left;
  background-size: 80% auto;
  width: 100%;
  height: 100%;
  content: "";
  position: absolute;
  top: 30vw;
  left: 0;
  z-index: -1;
}

#sec2 .box {
  position: relative;
  margin-bottom: 10vw;
}

#sec2 .box::before {
  background: url(../img/course/sec2_deco.png) no-repeat top right;
  background-size: 35% auto;
  width: 722px;
  height: 429px;
  content: "";
  position: absolute;
  top: 15vw;
  right: -10%;
  z-index: 2;
}

#sec2 .box h2 {
  padding-left: 6%;
}

#sec2 .box h3 {
  font-size: 6vw;
  text-align: center;
  line-height: 1.7;
}

#sec2 .box1 {
  position: relative;
  padding: 0 5% 1vw;
}

#sec2 .box1 .item {
  position: relative;
  background: url(../img/course/bg_box.jpg) no-repeat center;
  background-size: cover;
  border: 1px solid #FFF;
  box-sizing: border-box;
  padding: 35px 60px 25px 30px;
  color: #000;
}

#sec2 .box1 .item::before {
  background: url(../img/course/sec2_deco1.png) no-repeat bottom right;
  background-size: 45% auto;
  width: 334px;
  height: 193px;
  content: "";
  position: absolute;
  bottom: -15vw;
  right: -5%;
  z-index: 2;
}

#sec2 .box1 .item h4 {
  position: absolute;
  top: 25px;
  right: 15px;
  font-weight: bold;
}

#sec2 .box1 .item h4 span {
  color: #FFF;
  font-size: 20px;
  background: #000;
  padding: 15px 2px;
}

#sec2 .box1 .item dl {
  text-align: center;
  font-weight: bold;
}

#sec2 .box1 .item dl dt {
  font-size: 16px;
}

#sec2 .box1 .item dl dt span {
  font-size: 22px;
}

#sec2 .box1 .item dl dd {
  font-size: 16px;
}

#sec2 .box1 .item dl dd span {
  display: inline-block;
  position: relative;
}

#sec2 .box1 .item dl dd span::before {
  width: 200%;
  height: 1px;
  background: #000;
  position: absolute;
  left: 130%;
  top: 50%;
  content: "";
}

#sec2 .box1 .item dl dd span::after {
  width: 200%;
  height: 1px;
  background: #000;
  position: absolute;
  right: 130%;
  top: 50%;
  content: "";
}

#sec2 .box1 .photo {
  margin: 10vw 0 10vw;
}

#sec2 .box2 {
  padding: 0 5% 5vw;
}

#sec2 .box2 .item {
  position: relative;
  background: url(../img/course/bg_box.jpg) no-repeat center;
  background-size: cover;
  border: 1px solid #FFF;
  box-sizing: border-box;
  padding: 25px 30px 25px 30px;
  color: #000;
  margin-bottom: 10vw;
}

#sec2 .box2 .item::before {
  border: 1px solid #141414;
  position: absolute;
  top: 4px;
  left: 4px;
  right: 4px;
  bottom: 4px;
  content: "";
}

#sec2 .box2 .item h4 {
  position: relative;
  font-size: 20px;
  text-align: center;
  font-weight: bold;
  margin-bottom: 5px;
}

#sec2 .box2 .item dl {
  text-align: center;
  font-weight: bold;
}

#sec2 .box2 .item dl dt {
  font-size: 16px;
}

#sec2 .box2 .item dl dt span {
  font-size: 22px;
}

#sec2 .box2 .item dl dd {
  font-size: 16px;
}

#sec2 .box2 .item dl dd span {
  display: inline-block;
  position: relative;
}

#sec2 .box2 .item dl dd span::before {
  width: 200%;
  height: 1px;
  background: #000;
  position: absolute;
  left: 130%;
  top: 50%;
  content: "";
}

#sec2 .box2 .item dl dd span::after {
  width: 200%;
  height: 1px;
  background: #000;
  position: absolute;
  right: 130%;
  top: 50%;
  content: "";
}

@media screen and (min-width: 767px) {
  #sec2 {
    position: relative;
    padding: 20px 0 10px;
    z-index: 1;
    margin-top: -160px;
  }
  #sec2::before {
    background: url(../img/course/sec2_bg.jpg) no-repeat top left;
    background-size: auto;
    width: 100%;
    height: 100%;
    content: "";
    position: absolute;
    top: 100px;
    left: 0;
    z-index: -1;
  }
  #sec2 .box {
    position: relative;
    max-width: 1200px;
    margin: 0 auto 30px;
  }
  #sec2 .box::before {
    background: url(../img/course/sec2_deco.png) no-repeat top right;
    background-size: auto;
    width: 722px;
    height: 429px;
    content: "";
    position: absolute;
    top: -83px;
    right: 98px;
    z-index: 2;
  }
  #sec2 .box h2 {
    padding-left: 0;
    margin-left: -15px;
  }
  #sec2 .box h3 {
    font-size: 52px;
    text-align: left;
    line-height: 65px;
    margin: 30px 0 -150px 0;
    letter-spacing: -0.05em;
  }
  #sec2 .box1 {
    position: relative;
    padding: 0 0 20px;
    max-width: 1200px;
    margin: 0 auto 30px;
    display: flex;
    justify-content: space-between;
  }
  #sec2 .box1 .item {
    position: relative;
    background: url(../img/course/bg_box.jpg) no-repeat center;
    background-size: cover;
    border: 1px solid #FFF;
    box-sizing: border-box;
    padding: 90px 95px 25px 30px;
    color: #000;
    order: 2;
    width: 750px;
    height: 515px;
    margin-right: 30px;
  }
  #sec2 .box1 .item::before {
    background: url(../img/course/sec2_deco1.png) no-repeat bottom right;
    background-size: auto;
    width: 334px;
    height: 193px;
    content: "";
    position: absolute;
    bottom: -120px;
    right: -182px;
    z-index: 2;
  }
  #sec2 .box1 .item h4 {
    position: absolute;
    top: 20px;
    right: 27px;
    font-weight: bold;
    letter-spacing: -0.04em;
  }
  #sec2 .box1 .item h4 span {
    color: #FFF;
    font-size: 46px;
    background: #000;
    padding: 35px 39px;
  }
  #sec2 .box1 .item dl {
    text-align: center;
    font-weight: bold;
  }
  #sec2 .box1 .item dl dt {
    font-size: 30px;
    margin-bottom: 30px;
  }
  #sec2 .box1 .item dl dt span {
    font-size: 40px;
  }
  #sec2 .box1 .item dl dd {
    font-size: 20px;
    line-height: 40px;
  }
  #sec2 .box1 .item dl dd span {
    display: inline-block;
    position: relative;
  }
  #sec2 .box1 .item dl dd span::before {
    width: 180px;
    height: 1px;
    background: #000;
    position: absolute;
    left: 130%;
    top: 50%;
    content: "";
  }
  #sec2 .box1 .item dl dd span::after {
    width: 180px;
    height: 1px;
    background: #000;
    position: absolute;
    right: 130%;
    top: 50%;
    content: "";
  }
  #sec2 .box1 .photo {
    width: 620px;
    margin: 175px -40px 0 -150px;
    position: relative;
    order: 1;
    z-index: 2;
  }
  #sec2 .box2 {
    padding: 0;
    max-width: 1260px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
  }
  #sec2 .box2 .item {
    position: relative;
    background: url(../img/course/bg_box.jpg) no-repeat center;
    background-size: cover;
    border: 1px solid #FFF;
    box-sizing: border-box;
    padding: 37px 30px 15px 30px;
    width: 605px;
    color: #000;
    margin-bottom: 50px;
  }
  #sec2 .box2 .item::before {
    border: 2px solid #141414;
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    content: "";
  }
  #sec2 .box2 .item h4 {
    position: relative;
    font-size: 36px;
    text-align: center;
    font-weight: bold;
    margin-bottom: 15px;
  }
  #sec2 .box2 .item dl {
    text-align: center;
    font-weight: bold;
  }
  #sec2 .box2 .item dl dt {
    font-size: 30px;
  }
  #sec2 .box2 .item dl dt span {
    font-size: 40px;
  }
  #sec2 .box2 .item dl dd {
    font-size: 18px;
    line-height: 30px;
  }
  #sec2 .box2 .item dl dd span {
    display: inline-block;
    position: relative;
    margin-bottom: 5px;
  }
  #sec2 .box2 .item dl dd span::before {
    width: 150px;
    height: 1px;
    background: #000;
    position: absolute;
    left: 140%;
    top: 50%;
    content: "";
  }
  #sec2 .box2 .item dl dd span::after {
    width: 150px;
    height: 1px;
    background: #000;
    position: absolute;
    right: 140%;
    top: 50%;
    content: "";
  }
}

/*================== sec3 ====================*/
#sec3 {
  background: url(../img/course/floor_deco.jpg) no-repeat top right, url(../img/course/floor_bg.jpg) no-repeat bottom right;
  background-size: 108% auto;
  padding: 12vw 0 10vw;
}

#sec3 h2 {
  font-size: 8vw;
  margin-bottom: 8vw;
}

#sec3 .map {
  margin: 10vw 0 10vw;
}

#sec3 .slick-dots {
  padding: 10px 0 20px;
}

@media screen and (min-width: 767px) {
  #sec3 {
    background: url(../img/course/floor_bg.jpg) no-repeat bottom right;
    background-size: auto;
    padding: 200px 0 348px;
    position: relative;
    z-index: 1;
  }
  #sec3::before {
    background: url(../img/course/floor_deco.jpg) no-repeat top center;
    max-width: 1500px;
    width: 100%;
    height: 514px;
    background-size: 100% auto;
    position: absolute;
    top: 0;
    left: 53%;
    transform: translateX(-50%);
    z-index: -1;
    content: "";
  }
  #sec3 h2 {
    font-size: 76px;
    line-height: 76px;
    margin-bottom: 38px;
  }
  #sec3 .map {
    margin: -25px 0 50px;
    position: relative;
    z-index: 2;
  }
  #sec3 .slick-dots {
    padding: 10px 0 20px;
  }
  #sec3 .slide-mobi {
    position: relative;
  }
  #sec3 .slide-mobi li:nth-child(1) {
    position: absolute;
    top: -1090px;
    right: -156px;
  }
  #sec3 .slide-mobi li:nth-child(2) {
    position: absolute;
    top: -607px;
    right: -126px;
  }
  #sec3 .slide-mobi li:nth-child(3) {
    position: absolute;
    top: -137px;
    left: 144px;
  }
}

/*================== sec4 ====================*/
#sec4 {
  position: relative;
  z-index: 4;
  background: url(../img/course/gal_deco.jpg) no-repeat center top;
  background-size: 100% auto;
  padding-top: 13vw;
}

#sec4 .box {
  background: url(../img/course/gal_bg.jpg) no-repeat center/cover;
  padding-bottom: 12vw;
}

#sec4 .wrap {
  padding: 0;
}

#sec4 h2 {
  width: 50px;
  position: absolute;
  top: -13vw;
  right: 0;
}

#sec4 .photo {
  margin-right: 60px;
  position: relative;
  top: -3vw;
}

#sec4 .photo1 {
  margin: 0 0 0 40vw;
}

#sec4 .photo2 {
  position: relative;
  margin: -5vw 10% 0 10%;
}

@media screen and (min-width: 767px) {
  #sec4 {
    position: relative;
    z-index: 4;
    background: url(../img/course/gal_deco.jpg) no-repeat center top;
    background-size: auto;
    padding-top: 206px;
  }
  #sec4 .box {
    background: url(../img/course/gal_bg.jpg) no-repeat center/cover;
    padding-bottom: 63px;
  }
  #sec4 .wrap {
    padding: 0;
  }
  #sec4 h2 {
    width: 129px;
    position: absolute;
    top: -206px;
    right: 172px;
  }
  #sec4 .photo {
    margin-right: 60px;
    position: relative;
    top: -50px;
  }
  #sec4 .photo1 {
    margin: -50px 0 0 700px;
    width: 552px;
  }
  #sec4 .photo2 {
    position: relative;
    margin: -275px 0 0 212px;
    width: 516px;
    z-index: 2;
  }
}

@media screen and (max-width: 1399px) and (min-width: 767px) {
  #sec4 {
    background: url(../img/course/gal_deco.jpg) no-repeat center top 30px;
    background-size: auto 180px;
  }
  #sec4 .photo1 {
    width: 500px;
  }
}

@media screen and (max-width: 1449px) and (min-width: 767px) {
  #sec3 {
    padding: 170px 0 348px;
  }
}