#key {
  background: url(../img/index/key.jpg) no-repeat center center;
  background-size: cover;
}

.content_left {
  width: 180px;
  float: left;
  background-color: #fff;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
}

.content_right {
  width: calc(100% - 180px);
  float: right;
  margin-left: 180px;
}

#sec1 {
  padding: 130px 0 0px;
}


#sec1 .box_right .box {
  float: left;
  padding-bottom: 58px;
  width: 400px;
}

#sec1 .box_right .box:nth-child(2n) {
  float: right;
}

#sec1 .box_right .box .ttl {
  padding-top: 0px;
  font-size: 16px;
}


#sec2 {
  padding: 80px 0 80px;
}


#sec2 .box_right .box {
  padding-bottom: 60px;
}

#sec2 .box_right .box .ttl {
  padding-top: 5px;
  font-size: 16px;
}

#sec3 .go_slider {
  z-index: 0;
}

#sec3 .go_slider li img {
  width: 100%;
  height: auto;
}

#sec3 .go_slider .bx-wrapper .bx-pager, #sec3 .go_slider .bx-wrapper .bx-controls-auto {
  bottom: 10px;
}

#sec4 {
  padding: 130px 0;
  position: relative;
}

#sec4:before {
  content: "";
  background: url(../img/index/sec4_decp.png) top center;
  background-size: cover;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 357px;
}

#sec4 .link {
  width: 870px;
  margin: 0 auto;
}

#sec4 .link .btn-tg01 {
  position: relative;
}



#sec4 .link .btn-tg01:hover {
  opacity: 0.8;
  cursor: pointer;
}

#sec4 .link .btn-tg01 picture + picture {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  opacity: 0;
}

#sec4 .link .btn-tg01:before {
  content: "";
  background: url(../img/index/sec4_btn_open.svg) top center no-repeat;
  width: 44px;
  height: 44px;
  position: absolute;
  bottom: 64px;
  left: 50%;
  -moz-transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  -o-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
}

#sec4 .link .btn-tg01.open picture + picture {
  opacity: 1;
}

#sec4 .link .btn-tg01.open picture {
  opacity: 0;
}

#sec4 .link .btn-tg01.open::before {
  background: url(../img/index/sec4_btn_close.svg) top center no-repeat;
}

#sec4 .box-tg01 {
  width: 870px;
  margin: 0 auto;
}

#sec4 .box-tg01 .txt {
  padding: 80px 0 20px;
}

#sec4 .box-tg01 .txt p {
  padding-bottom: 30px;
  font-weight: normal;
}

#sec4 .box-tg01 .sec4_btn_close {
  text-align: center;
  padding-top: 100px;
}

#sec4 .box-tg01 .sec4_btn_close:hover {
  opacity: 0.8;
  cursor: pointer;
}

#sec4 .box-tg01 .photo {
    margin-top: 30px;
  text-align: center;
}

#sec5 .sec5_video {
  /* background: url(../img/index/sec5_video.jpg) center center;
  background-size: cover; */
  height: auto;
  width: 100%;
  position: relative;
  margin-bottom: 40px;
}

#sec5 .sec5_video:last-child {
  margin-bottom: 0;
}

.video-responsive{
  overflow:hidden;
  /* padding-bottom:56.25%; */
  position:relative;
  height:0;
}

.video-responsive iframe{
  left:0;
  top:0;
  height:100%;
  width:100%;
  position:absolute;
}


.video-responsive.play{
  padding-bottom: 56.25%;
}


.thumbnail-youtube {
  width: 102%;
  height: 102%;
  margin: -1%;
}

.thumbnail_container {
  position: relative;
}

.thumbnail_container > .start-video {
  position: absolute;
  top: 50%;
  left: 50%;
  -moz-transform: translateX(-50%) translateY(-50%);
-webkit-transform: translateX(-50%) translateY(-50%);
-o-transform: translateX(-50%) translateY(-50%);
-ms-transform: translateX(-50%) translateY(-50%);
transform: translateX(-50%) translateY(-50%);
}






#sec5 .sec5_video .btn_play {
  position: absolute;
  top: 50%;
  left: 50%;
  -moz-transform: translateX(-50%) translateY(-50%);
  -webkit-transform: translateX(-50%) translateY(-50%);
  -o-transform: translateX(-50%) translateY(-50%);
  -ms-transform: translateX(-50%) translateY(-50%);
  transform: translateX(-50%) translateY(-50%);
  width: 44px !important;
  height: 44px !important;
  cursor: pointer;
}

#sec6 {
  padding: 130px 0 130px;
  background-color: #f0ede1;
}


#sec6 .box_right dl {
  padding-bottom: 70px;
}

#sec6 .box_right dl .date {
  color: #dab50e;
  width: 120px;
  float: left;
}

#sec6 .box_right dl .ttl {
  width: calc(100% - 120px);
  float: left;
  font-size: 16px;
}

#sec6 .box_right dl .ttl .title1{
  font-weight: bold;
}

#sec6 .box_right dl .ttl .title1:hover {
  text-decoration: underline;
  cursor: pointer;
}

#sec6 .box_right dl .ttl span.text {
  font-size: 12px;
   display: block; 
}

.text---close {
  display: none;
}



#sec6 .box_right dl .ttl span.texttitle {
  margin: 14px 0 2px 0;
}

#sec6 .box_right dl .ttl span.textform {
  font-weight: bold;
}

#sec6 .box_right dl .ttl span.text:hover {
  text-decoration: none !important;
}

.attention { 
  color: red; 
}

@media only screen and (max-width: 1240px) and (min-width: 769px) {
  #sec1 .box_left {
    width: 100px;
  }
  #sec1 .box_right {
    width: calc(100% - 150px);
  }
  #sec1 .box_right .box {
    width: 48%;
  }
  #sec1 .box_right .box .ttl {
    padding-top: 5px;
    font-size: 1.5vw;
  }
  #sec1 .box_right .box .ttllong {
    padding-top: 5px;
    font-size: 1.3vw;
  }
  #sec2 .box_right .box {
    width: 100%;
  }
  #sec2 .box_right .box .ttl {
    padding-top: 5px;
    font-size: 1.5vw;
  }
  #sec4 .link {
    width: 90%;
  }
  #sec4 .link li {
    width: 48%;
  }
  #sec4 .link .btn-tg01:before {
    content: "";
    background: url(../img/index/sec4_btn_open.svg) top center no-repeat;
    width: 15%;
    height: 15%;
    position: absolute;
    bottom: 10%;
    left: 50%;
  }
  #sec4 .box-tg01 {
    width: 90%;
    margin: 0 auto;
  }
  #sec4 .box-tg01 .txt {
    padding: 80px 0 20px;
  }
  #sec4 .box-tg01 .txt p {
    padding-bottom: 30px;
    font-weight: normal;
  }
  #sec4 .box-tg01 .sec4_btn_close {
    text-align: center;
    padding-top: 100px;
  }
 
}

@media only screen and (max-width: 768px) {
  .content_left {
    width: 0;
  }
  .content_right {
    width: 100%;
    float: right;
    margin-left: 0;
  }
  #sec1 {
    padding-top: 80px;
    margin-top: -50px;
  }
  
  #sec1 .box_right .box {
    float: none;
    padding-bottom: 8%;
    width: 100%;
  }
  #sec1 .box_right .box .ttl {
    padding-top: 5px;
    font-size: 16px;
  }
  #sec2 {
    padding: 15% 0 15%;
  }

  #sec2 .box_right .box {
    float: none;
    padding-bottom: 8%;
    width: 100%;
  }
  #sec2 .box_right .box .ttl {
    padding-top: 5px;
    font-size: 16px;
  }
  #sec4 {
    padding: 20% 0;
    position: relative;
  }
  #sec4 .link {
    width: 90%;
    margin: 0 auto;
  }
  #sec4 .link li {
    width: 42%;
  }
  #sec4 .link .btn-tg01_fl {
    float: left;
  }
  #sec4 .link .btn-tg01_fr {
    float: right;
  }
  #sec4 .link .btn-tg01:before {
    content: "";
    background: url(../img/index/sec4_btn_open.svg) top center no-repeat;
    position: absolute;
    bottom: 15%;
    left: 50%;
  }
  #sec4 .box-tg01 {
    width: 90%;
    margin: 0 auto;
  }
  #sec4 .box-tg01 .txt {
    padding: 40px 0 20px;
  }
  #sec4 .box-tg01 .txt p {
    padding-bottom: 0;
  }
  #sec4 .box-tg01 .sec4_btn_close {
    padding-top: 10%;
    width: 44px;
    margin: 0 auto;
  }
  #sec5 .sec5_video {
   
  }
  #sec6 {
    padding: 20% 0;
  }
  
  #sec6 .box_right dl {
    padding-bottom: 5%;
  }
  #sec6 .box_right dl .date {
    color: #dab50e;
    width: 100%;
    float: none;
  }
  #sec6 .box_right dl .ttl {
    width: 100%;
    float: none;
    font-size: 16px;
    line-height: 28px
  }
  #sec6 .box_right dl .ttl span {
    font-size: 12px;
    display: inline-block;
  }

  .thumbnail_container > .start-video img {
    width: 44px;
    height: 44px;
  }

}

@media only screen and (min-width: 1240px) {

#sec4 .link li img {
  width: 400px;
  height: 350px;
}

}