@charset "UTF-8";
/* ===================================================================
各展覧会ごとのスタイル
=================================================================== */

.background {
  background: url("../img/overlay.png")  #000 fixed;
}

.footer {
  background: #333;
  color: #fff;
}

.mainSec{
  color: #46291B;
  background: rgba(214,214,214,0.9);
}

.topImg{
  display: block;
  width: 100%;
  margin: 50px auto 0;
  max-width: 1280px;
}

.mainSec__head {
	border-bottom: 3px solid #B89251;
	padding: 0 0 .2em;
}

#js-particles{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index:-1;
}

.sm-slider:after {
opacity: .5;
}

.scrolldown {
  text-align: center;
  position: absolute;
  bottom: 100px;
  left: 49%;
}

.scrolldown span {
  position: absolute;
  top: 0;
  left: 0;
  width: 55px;
  height: 55px;
  margin-left: -12px;
  border-left: 10px solid rgba(255,255,255,0.7);
  border-bottom: 10px solid rgba(255,255,255,0.7);
  -webkit-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  transform: rotate(-45deg);
  -webkit-animation: sdb 1.5s infinite;
  animation: sdb 1.5s infinite;
  box-sizing: border-box;
}

@-webkit-keyframes sdb {
  0% {
    -webkit-transform: rotate(-45deg) translate(0, 0);
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    -webkit-transform: rotate(-45deg) translate(-20px, 20px);
    opacity: 0;
  }
}
@keyframes sdb {
  0% {
    -webkit-transform: rotate(-45deg) translate(0, 0);
            transform: rotate(-45deg) translate(0, 0);
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    -webkit-transform: rotate(-45deg) translate(-20px, 20px);
            transform: rotate(-45deg) translate(-20px, 20px);
    opacity: 0;
  }
}
@media screen and (max-width: 460px) {
  .scrolldown {
    text-align: center;
    position: absolute;
    bottom: 90px;
    left: 46%;
  }
}
.fin {
  -webkit-filter: brightness(0.4);
  -moz-filter: brightness(0.4);
  -o-filter: brightness(0.4);
  -ms-filter: brightness(0.4);
  filter: brightness(0.4);
  position:relative;
}
.fin {
  -webkit-filter: brightness(0.4);
  -moz-filter: brightness(0.4);
  -o-filter: brightness(0.4);
  -ms-filter: brightness(0.4);
  filter: brightness(0.4);
  position:relative;
}