@charset "utf-8";
@import url(content.css);

@media screen and (max-width:1750px) {
  #header .menu {
    width: 80%;
    margin: 0 0 0 14%;
  }

  #header .menu li {
    width: 15%;
  }

  #header .top_btn {
    position: absolute;
    top: 30px;
    right: 10px;
    margin-top: 0px;
  }
}

@media screen and (max-width:1600px) {
  .main_visual .date_cnt {
    width: 40%;
    font-size: 15vw;
    top: 1vw;
    left: 50%;
    margin-left: -18%;
    text-align: center;
  }
}

@media screen and (max-width:1400px) {
  #header .menu {
    margin: 0 0 0 17%;
  }

  #header .menu li {
    width: 14%;
  }

  #header .top_btn {
    position: absolute;
    top: 30px;
    right: 10px;
    margin-top: 0px;
  }
}

@media screen and (max-width:1280px) {
  #header h1 {
    left: 14px;
  }

  #header .menu {
    margin: 0 0 0 15%;
  }

  #header .menu li {
    width: 14%;
  }

  #header .top_btn {
    position: absolute;
    top: 30px;
    right: 10px;
    margin-top: 0px;
  }

  #footer {
    width: 80%;
    padding: 37px 0 100px 0;
  }

  #footer img {
    width: 100%;
  }
}

@media screen and (max-width:1200px) {
  #header h1 {
    left: 14px;
  }

  #header .menu {
    margin: 0 0 0 15%;
  }

  #header .menu li {
    width: 14%;
  }

  #header .top_btn {
    position: absolute;
    top: 30px;
    right: 10px;
    margin-top: 0px;
  }
}

@media screen and (max-width:1150px) {
  body.active {
    min-width: 100%;
    overflow: hidden;
  }

  #header {
    height: 70px;
  }

  #header h1 {
    width: 126px;
    top: 19px;
    left: 18px;
  }

  #header .menu, #header .top_btn {
    display: none;
  }

  .main_visual {
    margin-top: 70px;
  }

  .menu_btn {
    display: block;
    width: 34px;
    height: 27px;
    line-height: 30px;
    position: fixed;
    top: 21px;
    right: 22px;
    z-index: 9;
    cursor: pointer;
  }

  .menu_btn span {
    display: inline-block;
    vertical-align: middle;
    margin-top: -6px;
    width: 100%;
    height: 1px;
    transform-origin: left center;
    background: rgba(255, 255, 255, 0.5);
    transition: all .3s cubic-bezier(0.785, 0.135, 0.15, 0.86);
    -webkit-transition: all .3s cubic-bezier(0.785, 0.135, 0.15, 0.86);
  }

  .menu_btn span:before,
  .menu_btn span:after {
    content: "";
    display: block;
    width: 100%;
    height: 1px;
    background: rgba(255, 255, 255, 0.5);
    position: absolute;
    left: 0;
    transform-origin: left top;
    transition: all .3s cubic-bezier(0.785, 0.135, 0.15, 0.86);
    -webkit-transition: all .3s cubic-bezier(0.785, 0.135, 0.15, 0.86);
  }

  .menu_btn span:before {
    top: 0;
  }

  .menu_btn span:after {
    top: 100%;
  }

  .menu_btn.active span {
    background: transparent;
  }

  .menu_btn.active span:before {
    transform: rotate(45deg);
    top: 1px;
    left: 5px
  }

  .menu_btn.active span:after {
    transform: rotate(-45deg);
    top: 25px;
    left: 5px
  }

  .nav {
    display: block;
    background-color: #2a2a2a;
    position: fixed;
    z-index: 8;
    top: 0;
    right: 0;
    height: 100%;
    padding: 100px 0 0 0;
    overflow-y: auto;
    -webkit-transform: translateX(100%);
    -moz-transform: translateX(100%);
    -ms-transform: translateX(100%);
    -o-transform: translateX(100%);
    transform: translateX(100%);
    -webkit-transition: transform 0.5s ease-out;
    -moz-transition: transform 0.5s ease-out;
    -o-transition: transform 0.5s ease-out;
    transition: transform 0.5s ease-out;
  }

  .nav ul {
    list-style-type: none;
  }

  .nav ul li {
    -webkit-transform: translateX(40px);
    -moz-transform: translateX(40px);
    -ms-transform: translateX(40px);
    -o-transform: translateX(40px);
    transform: translateX(40px);
    opacity: 0;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  }

  .nav ul li:nth-of-type(1) {
    border-top: 1px solid rgba(255, 255, 255, 0.5);
  }

  .nav ul li a {
    color: #ffffff;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 20px;
    display: block;
    letter-spacing: 1px;
    font-weight: 500;
    padding: 10px 0;
    width: 100%;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
    line-height: 1.2em;
    padding: 16px 100px 16px 27px;
  }

  .nav.active {
    -webkit-transform: translateX(0px);
    -moz-transform: translateX(0px);
    -ms-transform: translateX(0px);
    -o-transform: translateX(0px);
    transform: translateX(0px);
  }

  .nav.active ul li {
    -webkit-transform: translateX(0px);
    -moz-transform: translateX(0px);
    -ms-transform: translateX(0px);
    -o-transform: translateX(0px);
    transform: translateX(0px);
    opacity: 1;
  }

  .overlay {
    position: fixed;
    z-index: 6;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(255, 255, 255, 0.6);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease-in-out;
  }

  .overlay.active {
    opacity: 0.8;
    visibility: visible;
  }
}

@media screen and (max-width:1149px) {
  .nav .top_btn {
    font-size: 15px;
    border: 1px solid #fff;
    display: inline-block;
    margin: 25px 0 0 25px;
  }

  .nav .top_btn a {
    display: block;
    padding: 8px 75px 8px 17px;
    color: #fff;
    background: url(../images/arrow_btn.png) no-repeat 90% 13px;
  }

  .main_visual .date_cnt {
    font-size: 15vw;
    top: 1vw;
    width: 40%;
    left: 50%;
    text-align: center;
    margin-left: -17%;
  }

  .main_visual img {
    width: 40%;
    margin-left: -17.5%;
  }

  .main_visual i {
    bottom: 15px;
    left: 50%;
    width: 76px;
    height: 76px;
    margin-left: -38px;
  }
  .main_visual i:before {
    width: 76px;
    height: 76px;
    background-size:76px;
  }
  #content.main {
    padding-top: 30px;
  }

  #content {
    width: 100%;
    position: relative;
    padding-top: 70px;
    overflow-x: hidden;
  }

  #content:before {
    content: "";
    display: block;
    width: 4px;
    height: 100%;
    background-color: #34495e;
    position: absolute;
    top: 0;
    left: 8px;
  }

  .main_content {
    display: none;
  }

  .main_content.mobile {
    display: block;
  }

  .timeline-item {
    position: relative;
    width: 100%;
    box-sizing: border-box;
    padding: 30px 0 0px 0;
  }

  .timeline-item:before {
    display: none;
  }

  .timeline-item-date {
    top: 51px;
    left: 3px;
    margin: 0px;
    width: 10px;
    height: 10px;
    line-height: 10px;
    border: 2px solid #34495e;
  }

  .timeline-item-line {
    display: none;
  }

  .month-box {
    width: 100%;
    padding: 35px 0 3px 0;
  }

  .video-box, .text-box {
    float: none;
    width: 100%;
    margin-top: 15px;
    padding: 0 40px;
    box-sizing: border-box;
  }

  .video-box.wvleft, .text-box.wvleft,
  .video-box.wvright, .text-box.wvright {
    padding: 0 15px 0 40px;
  }

  .box-title.wvleft, .text-txt.wvleft,
  .box-tag.wvleft, .text-box-footer.wvleft {
    text-align: left;
  }

  .box-tag p {
    margin-bottom: 11px;
  }

  .wv_video {
    width: 100%;
    height: 30%;
    margin-top: 20px;
    text-align: center;
  }

  .wv_video img {
    width: 54%;
    min-width: 266px;
  }

  .video-box.wvright .wv_video img {
    margin-left: -20px;
  }

  .video-box .wv_video.wide img {
    width: 90%;
  }

  .gotop_btn {
    width: 60px;
    height: 60px;
    bottom: 20px;
    right: 20px;
  }

  .gotop_btn .toTop {
    background-size:60px;
  }

  #footer {
    width: 95%;
    padding: 37px 0 50px 0;
  }

  .video-popup .video-wrapper {
    width: 80%;
    padding-bottom: 45%;
  }
}
@media screen and (max-width:700px) {
  .main_visual i {
    width: 70px;
    height: 70px;
    margin-left: -35px;
  }
  .main_visual i:before {
    width: 70px;
    height: 70px;
    background-size:70px;
  }

}
@media screen and (max-width:530px) {
  .main_visual i {
    width: 50px;
    height: 50px;
    margin-left: -25px;
  }
  .main_visual i:before {
    width: 50px;
    height: 50px;
    background-size:50px;
  }

}