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

.img-shadow {
  box-shadow: 8px 8px 8px 7px rgba(0, 0, 0, 0.28);
}

#sec1 {
  position: relative;
}
#sec1:before {
  content: "";
  position: absolute;
  top: 0px;
  left: 0px;
  right: 0px;
  background: url(../img/shared/sec_bg2.jpg);
  background-position: center top;
  background-repeat: repeat;
  height: 900px;
}
#sec1 .wrap {
  padding-top: 90px;
}
#sec1 .wrap:before {
  content: "";
  position: absolute;
  top: 0px;
  right: -667px;
  background: url(../img/scene/s1_bg.png);
  background-position: center bottom;
  background-repeat: no-repeat;
  width: 1669px;
  height: 900px;
}
#sec1 h2 {
  position: relative;
  z-index: 1;
}
#sec1 .box {
  position: relative;
  z-index: 0;
  width: 750px;
  margin-top: -39px;
  padding: 81px 0px 70px 60px;
  box-sizing: border-box;
}
#sec1 .box:before {
  content: "";
  position: absolute;
  top: 0px;
  left: -100%;
  right: 0px;
  bottom: 0px;
  background: rgba(15, 16, 26, 0.95);
  z-index: -1;
}
#sec1 .box .txt {
  width: 600px;
}

#sec2 {
  position: relative;
  padding: 154px 0px 0px;
}
#sec2:after {
  content: "";
  position: absolute;
  top: -201px;
  left: calc(50% - 200px);
  right: 0px;
  bottom: 0px;
  background: rgba(255, 255, 255, 0.45);
  z-index: -2;
}
#sec2:before {
  content: "";
  position: absolute;
  top: -201px;
  left: 0px;
  right: 0px;
  background-image: url(../img/scene/s2_bg.png);
  background-position: center bottom;
  background-repeat: no-repeat;
  background-size: cover;
  height: 776px;
  z-index: -1;
}
#sec2 [class^=item] {
  position: relative;
}
#sec2 [class^=item] + [class^=item] {
  margin-top: 100px;
}
#sec2 .s2-sub {
  position: absolute;
  top: 0px;
  z-index: 1;
}
#sec2 .s2-group {
  width: 1400px;
}
#sec2 .box {
  position: relative;
  z-index: 1;
  box-sizing: border-box;
}
#sec2 .box:before {
  content: "";
  position: absolute;
  top: 0px;
  bottom: 0px;
  background-image: url(../img/shared/sec_bg2.jpg);
  background-position: center left;
  background-repeat: repeat;
  z-index: -1;
}
#sec2 .box dl dt {
  font-size: 60px;
  font-weight: 600;
  line-height: 1.66;
}
#sec2 .box dl dd {
  margin-top: 16px;
}
#sec2 .item1 {
  margin-top: 61px;
}
#sec2 .item1 .s2-sub {
  right: 0px;
}
#sec2 .item1 .s2-group {
  margin-left: -400px;
}
#sec2 .item1 .box {
  padding: 68px 0px 81px 60px;
}
#sec2 .item1 .box:before {
  left: -100%;
  right: 0px;
}
#sec2 .item1 .box dl {
  width: 380px;
}
#sec2 .item1 .s2-sub-img {
  position: absolute;
  right: -149px;
  bottom: 95px;
  z-index: 2;
}
#sec2 .item2 .s2-sub {
  left: 0px;
}
#sec2 .item2 .s2-group {
  margin-right: -400px;
}
#sec2 .item2 .box {
  margin: -200px 0px 0px 400px;
  padding: 75px 0px 110px 100px;
}
#sec2 .item2 .box:before {
  left: 0px;
  right: -100%;
}
#sec2 .item2 .box dl {
  width: 400px;
}
#sec2 .item3:before {
  content: "";
  position: absolute;
  top: 505px;
  left: -100%;
  right: -100%;
  bottom: 0px;
  background-image: url(../img/shared/sec_bg2.jpg);
  background-position: center left;
  background-repeat: repeat;
}
#sec2 .item3 .s2-sub {
  right: 0px;
}
#sec2 .item3 .s2-group {
  margin-left: -400px;
}
#sec2 .item3 .box {
  margin: -200px 0px 0px;
  padding: 74px 0px 109px 60px;
  width: 500px;
}
#sec2 .item3 .box:before {
  left: -100%;
  right: 0px;
}
#sec2 .item3 .box dl {
  width: 380px;
}

#sec3 {
  color: #000;
  margin-top: 92px;
}
#sec3 h2 {
  font-size: 80px;
  font-weight: 600;
  line-height: 1.25;
}
#sec3 .box {
  position: relative;
  z-index: 0;
  margin: -21px -100px 0px;
  padding: 70px 0px 0px;
}
#sec3 .box:before {
  content: "";
  position: absolute;
  top: 0px;
  left: 0px;
  right: 0px;
  bottom: 22px;
  background: url(../img/shared/caro_deco.png), url(../img/shared/sec_bg2.jpg);
  background-position: center top;
  background-repeat: repeat;
  z-index: -1;
}

#sec4 {
  padding-top: 149px;
  margin-top: 100px;
  position: relative;
  color: #000;
}
#sec4:before {
  content: "";
  position: absolute;
  top: 0px;
  left: 0px;
  right: 0px;
  background-image: url(../img/scene/s4_bg.png);
  height: 720px;
  background-position: center bottom;
  background-repeat: no-repeat;
  background-size: cover;
  z-index: -1;
}
#sec4 .s4-inner {
  position: relative;
  margin-top: 145px;
  padding-bottom: 100px;
}
#sec4 .s4-inner:after {
  content: "";
  position: absolute;
  top: 0px;
  left: 0px;
  right: calc(50% - 300px);
  bottom: 0px;
  background: rgba(255, 255, 255, 0.45);
  z-index: -2;
}
#sec4 [class^=item] {
  position: relative;
}
#sec4 .s4-img {
  height: 630px;
}
#sec4 .s4-img img {
  -o-object-fit: cover;
     object-fit: cover;
  width: 100%;
  height: 100%;
}
#sec4 .s4-catch {
  position: absolute;
  top: -80px;
  left: 0px;
  right: 0px;
  z-index: 1;
  max-width: 1000px;
  margin: 0px auto;
  box-sizing: border-box;
}
#sec4 .inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
#sec4 .col-txt {
  margin-top: 60px;
}
#sec4 .col-txt dt {
  font-size: 50px;
  font-weight: 600;
  line-height: 2;
  border-top: 1px solid #000;
  border-bottom: 1px solid #000;
}
#sec4 .col-txt dd {
  margin-top: 29px;
}
#sec4 .s4-sub-img {
  width: 650px;
  margin-top: -80px;
}
#sec4 .item1 .s4-catch {
  padding-left: 50px;
}
#sec4 .item1 .col-txt {
  width: 380px;
  margin-right: 58px;
}
#sec4 .item1 .s4-sub-img {
  margin-left: -150px;
}
#sec4 .item1 .s4-btn {
  margin-top: 48px;
}
#sec4 .item2 {
  margin-top: 130px;
}
#sec4 .item2 .s4-catch {
  padding-right: 50px;
}
#sec4 .item2 .col-txt {
  width: 500px;
}
#sec4 .item2 .s4-sub-img {
  margin-right: -201px;
}
#sec4 .item2 .s4-sub-img1 {
  margin: 37px 0px 0px -49px;
  width: 550px;
}
#sec4 .btn_link i {
  bottom: 20px;
  right: 33px;
}