.in_contents {
  padding-top: 0;
}
.in_contents .special_back_btn {
  text-align: center;
  border-top: 1px solid rgba(64, 75, 128, 0.2);
  padding-top: 45px;
  margin-top: 45px;
}

.in_contents .special_back_btn a{
  position: relative;
  color: #565656;
  font-size: 15px;
  padding-left: 18px;
  font-family: YakuHanJP, proxima-nova, sans-serif;
  -webkit-font-feature-settings: "palt";
  font-feature-settings: "palt";
  letter-spacing: .07em;
}

.in_contents .special_back_btn a::before {
  content: "";
  display: block;
  border-left: 1px solid #565656;
  border-bottom: 1px solid #565656;
  width: 6px;
  height: 6px;
  position: absolute;
  left: 0;
  top: 45%;
  -webkit-transform: rotate(45deg) translateY(-50%);
  -ms-transform: rotate(45deg) translateY(-50%);
  transform: rotate(45deg) translateY(-50%);
}

@media only screen and (max-width: 750px) {
  .main-in.special {
    width: auto;
    margin: 55px 5.5% 0;
  }
}

@media only screen and (min-width: 751px) {
  .in_contents .special_back_btn {
    margin-top: 120px;
    padding-top: 60px;
    -webkit-transition: all cubic-bezier(0.39, 0.575, 0.565, 1) 0.5s;
    -o-transition: all cubic-bezier(0.39, 0.575, 0.565, 1) 0.5s;
    transition: all cubic-bezier(0.39, 0.575, 0.565, 1) 0.5s;
  }
  .in_contents .special_back_btn:hover {
    opacity: 0.7;
  }
  .in_contents .special_back_btn a::before {
    top: 41%;
  }
}

/************************/

.special_wrap h3 {
  font-family: YakuHanJP, proxima-nova, sans-serif;
  -webkit-font-feature-settings: "palt";
  font-feature-settings: "palt";
  letter-spacing: .07em;
  border-bottom: none;
  font-weight: 400;
  margin-bottom: 0;
  padding-bottom: 0;
  line-height: 1.15;
  font-size: 30px;
}

.special_wrap h3 span {
  font-size: 20px;
}

.ost_jk .name{
  margin-top: 20px;
  font-size: 12px;
  letter-spacing: .04em;
  text-align: right;
}

.ost_jk_bottom {
  /*margin-top: 20px;*/
  margin-top: -12px;
  display: flex;
  -webkit-justify-content: space-between;
          justify-content: space-between;
}

.ost_jk_thumb {
  display: flex;
}

.ost_jk_thumb li {
  position: relative;
  width: 60px;
  height: 60px;
  margin-right: 10px;
  cursor: pointer;
  background-color: #FFF;
  -webkit-background-size: 100% auto;
       -o-background-size: 100% auto;
          background-size: 100% auto;
  background-position: center;
}

.ost_jk_thumb li::before {
  content: "";
  background: #99bbff;
  background: -webkit-linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  background: -o-linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  background: linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#99bbff', endColorstr='#99d3ff',GradientType=1 );
  opacity: 0.75;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  position: absolute;
  -webkit-transition: all 0.3s ease-in;
  -o-transition: all 0.3s ease-in;
  transition: all 0.3s ease-in;
}

.ost_jk_thumb li.current::before, .ost_jk_thumb li:hover::before {
  opacity: 0;
}

.ost_jk_name {
  font-size: 12px;
  letter-spacing: .04em;
}

.ost_jk_btn {
  position: relative;
  font-family: YakuHanJP, proxima-nova, sans-serif;
  -webkit-font-feature-settings: "palt";
  font-feature-settings: "palt";
  letter-spacing: .1em;
  background: #99bbff;
  background: -webkit-linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  background: -o-linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  background: linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#99bbff', endColorstr='#99d3ff',GradientType=1 );
  -webkit-border-radius: 50px;
          border-radius: 50px;
  margin: 35px auto 0;
  width: 300px;
  overflow: hidden;
  -webkit-transition: all 0.3s ease-in;
  -o-transition: all 0.3s ease-in;
  transition: all 0.3s ease-in;
}

.ost_jk_btn:hover a {
  background-color: rgba(72,170,255,.7);
}

.ost_jk_btn a {
  color: #FFF !important;
  padding: 20px 0;
  display: block;
  font-size: 18px;
  -webkit-transition: all 0.3s ease-in;
  -o-transition: all 0.3s ease-in;
  transition: all 0.3s ease-in;
}

.ost_jk_btn a::after {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  right: 75px;
  width: 14px;
  height: 100%;
  background: url(../img/special/ost/icon_link.png) center no-repeat;
  -webkit-background-size: 100% auto;
       -o-background-size: 100% auto;
          background-size: 100% auto;
}

.ost_detail {
  text-align: left;
}

.ost_detail_lead {
  margin-top: 30px;
  line-height: 1.6;
  font-size: 15px;
}

.ost_detail_type {
  font-size: 13px;
  margin-top: 35px;
  letter-spacing: .06em;
}

.ost_detail_type dt {
  color: #48AAFF;
}

.ost_detail_type dd {
  line-height: 1.85;
  margin-top: 10px;
}

.ost_detail_type dd li{
  text-indent: -1em;
  margin-left: 1em;
}

.ost_detial_att {
  font-size: 12px;
  line-height: 1.5;
  text-indent: -1em;
  margin: 25px 0 0 1em;
}

.ost_youtube {
  margin-top: 40px;
}

.ost_youtube .thumb div{
  position: relative;
  width: 100%;
  padding-top: 56.25%;

}

.ost_youtube .thumb div::before {
  content: "";
  display: block;
  background: #99bbff;
  background: -webkit-linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  background: -o-linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  background: linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#99bbff', endColorstr='#99d3ff',GradientType=1 );
  opacity: 0.5;
  width: 100%;
  height: 100%;
  position: absolute;
  z-index: 30;
  top: 0;
  left: 0;
  -webkit-transition: all 0.4s cubic-bezier(0.39, 0.575, 0.565, 1);
  transition: all 0.4s cubic-bezier(0.39, 0.575, 0.565, 1);
}

.ost_youtube:hover .thumb div::before {
  opacity: 0;
}

.ost_youtube .thumb div::after {
  content: "";
  display: block;
  background: url(../img/special/play.png) center no-repeat;
  -webkit-background-size: 15.15% auto;
  -o-background-size: 15.15% auto;
  background-size: 15.15% auto;
  width: 100%;
  height: 100%;
  position: absolute;
  z-index: 30;
  top: 0;
  left: 0;
}

.ost_tracklist {
  border: 1px solid #D9DAD4;
  margin-top: 75px;
  text-align: left;
}

.ost_tracklist_cap {
  letter-spacing: .06em;
  font-size: 14px;
}

.ost_tracklist li {
  font-size: 13px;
  letter-spacing: .08em;
}

.ost_tracklist li span {
  width: 35px;
  display: inline-block;
}

@media only screen and (min-width: 751px) {
  .ost_main {
    display: flex;
    -webkit-justify-content: space-between;
            justify-content: space-between;
    -webkit-flex-wrap: wrap;
        -ms-flex-wrap: wrap;
            flex-wrap: wrap;
  }
  .ost_jk {
    width: 460px;
    min-width: 460px;
    width: 43.5%;
  }
  .ost_detail {
    width: 49%;
    min-width: 475px;
  }
  .ost_detail_date {
    margin-top: 15px;
    font-size: 18px;
  }
  .ost_tracklist {
    display: flex;
    -webkit-justify-content: center;
            justify-content: center;
    width: 100%;
    padding: 50px 0 35px;
    -webkit-box-sizing: border-box;
       -moz-box-sizing: border-box;
            box-sizing: border-box;
  }
  .ost_tracklist_cap {
    width: 140px;
    margin-left: 65px;
  }
  .ost_tracklist ol{
    display: flex;
    -webkit-flex-direction: column;
        -ms-flex-direction: column;
            flex-direction: column;
    -webkit-flex-wrap: wrap;
        -ms-flex-wrap: wrap;
            flex-wrap: wrap;
    height: 260px;
    width: 780px;
  }
  .ost_tracklist li {
    margin-bottom: 15px;
    width: 260px;
  }
}

@media only screen and (max-width: 750px) {
  .special_wrap h3 {
    font-size: 25px;
    line-height: 1.25;
  }
  .special_wrap h3 span {
    font-size: 15px;
  }
  .ost_date {
    margin-top: 12px;
    font-size: 16px;
    letter-spacing: .06em;
  }
  .ost_jk {
    margin-top: 35px;
  }
  .ost_jk_bottom {
    /*margin-top: 10px;*/
    margin-top: -12px;
  }
  .ost_jk_thumb li {
    margin-right: 10px;
    width: 17vw;
    height: 17vw;
  }
  .ost_jk_btn {
    margin-top: 30px;
    width: 80%;
  }
  .ost_jk_btn a {
    padding: 18px 0 17px;
    font-size: 16px;
  }
  .ost_jk_btn a::after {
    width: 11px;
    right: calc(50% - 65px);
  }
  .ost_detail_type {
    font-size: 14px;
    margin-top: 30px;
  }
  .ost_detail_type p {
    text-indent: -4.5em;
    margin-left: 4.5em;
  }
  .ost_tracklist {
    margin-top: 50px;
    padding: 30px 5vw 25px;
  }
  .ost_tracklist_cap {
    font-size: 15px;
    margin-bottom: 15px;
  }
  .ost_tracklist li {
    font-size: 14px;
    margin-bottom: 10px;
  }
  .ost_tracklist li span {
    text-align: right;
    padding-right: 10px;
    width: 18px;
  }
}


.special_wrap .ost_nov_cap {
  position: relative;
  font-size: 20px;
  padding: 18px 0 16px;
  line-height: 1;
  margin-bottom: 45px;
  width: 100%;
}

.ost_nov_cap::before {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  z-index: 1;
  top: 0;
  left: 0;
  background: #99bbff;
  background: -webkit-linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  background: -o-linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  background: linear-gradient(45deg, #99bbff 0%, #99d3ff 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#99bbff', endColorstr='#99d3ff',GradientType=1 );
  opacity: 0.5;
}

.ost_nov_cap span {
  position: relative;
  z-index: 2;
}

.ost_nov_txt {
  text-align: left;
}

.ost_nov_txt .name {
  font-weight: bold;
  letter-spacing: .06em;
}

.ost_nov_txt .txt {
  margin-top: 18px;
  line-height: 1.75;
  font-size: 15px;
  letter-spacing: .06em;
}

.ost_nov_txt .list {
  font-size: 13px;
  margin-top: 35px;
  letter-spacing: .06em;
}

.ost_nov_txt .list dt {
  color: #48AAFF;
}

.ost_nov_txt .list dd {
  line-height: 1.85;
  margin-top: 10px;
}

.ost_nov_txt .att {
  margin-top: 25px;
  font-size: 13px;
  line-height: 1.5;
}

.ost_nov_txt p.att {
  margin-top: 15px;
}

.ost_nov_txt .att li{
  text-indent: -1em;
  margin: 0 0 5px 1em;
}

.ost_nov_shoplist {
  display: flex;
  -webkit-flex-wrap: wrap;
      -ms-flex-wrap: wrap;
          flex-wrap: wrap;
}

.ost_nov_shoplist li {
  text-align: left;
  margin-bottom: 40px;
  font-size: 13px;
  letter-spacing: .06em;
}

.ost_nov_shoplist .shop {
  color: #48AAFF;
  margin-top: 20px;
}

.ost_nov_shoplist .item {
  margin-top: 10px;
}

.ost_nov_att {
  margin-top: 30px;
  text-align: left;
}

.ost_nov_att li {
  text-indent: -1em;
  margin: 0 0 5px 1em;
  font-size: 13px;
  line-height: 1.6;
}

@media only screen and (min-width: 751px) {
  .ost_nov {
    display: flex;
    -webkit-flex-wrap: wrap;
        -ms-flex-wrap: wrap;
            flex-wrap: wrap;
    -webkit-justify-content: space-between;
            justify-content: space-between;
    margin-top: 100px;
  }
  .ost_nov.bundle {
    margin-top: 120px;
  }
  .ost_nov_img {
    -webkit-order: 3;
        -ms-order: 3;
            order: 3;
    min-width: 320px;
    max-width: 500px;
    width: 30%;
  }
  .ost_nov_txt {
    width: 62.5%;
    min-width: 600px;
  }
  .ost_nov_shoplist li {
    width: 31%;
    margin-left: 3.5%;
  }
  .ost_nov_shoplist li:nth-of-type(3n+1) {
    margin-left: 0;
  }
}

@media only screen and (max-width: 750px) {
  .ost_nov {
    margin-top: 70px;
  }
  .special_wrap .ost_nov_cap {
    margin-bottom: 30px;
    font-size: 28px;
    padding: 10px 0;
  }
  .ost_nov_img {
    width: 70%;
    margin: 0 auto;
  }
  .ost_nov_txt {
    margin-top: 20px;
  }
  .ost_nov_txt .name {
    font-size: 15px;
    line-height: 1.4;
  }
  .ost_nov_txt .txt {
    margin-top: 10px;
    font-size: 14px;
  }
  .ost_nov_txt .list {
    margin-top: 25px;
  }
  .ost_nov_txt .att {
    margin-top: 20px;
  }
  .ost_nov_txt .att li {
    line-height: 1.7;
  }
  .ost_nov_shoplist li {
    width: 47.5%;
    margin-bottom: 30px;
  }
  .ost_nov_shoplist li:nth-of-type(even) {
    margin-left: 5%;
  }
  .ost_nov_shoplist .shop {
    margin-top: 15px;
  }
  .ost_nov_shoplist .item {
    margin-top: 6px;
    line-height: 1.4;
  }
}