.gallery {
  position: relative;
  background: #fff;
  color: #696666;
  font-size: 38px;
  line-height: 1;
  padding: 100px 0;
  text-align: center;
  min-height: 1000px;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-user-select: none;
  user-select: none;
}

.gallery-title {
  text-align: center;
  margin-bottom: 25px;
}

.gallery-list {
  text-align: left;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
}

.gallery-box {
  position: relative;
  width: 25%;
  display: inline-block;
  overflow: hidden;
  cursor: pointer;
}

.gallery-box:before {
  content: '';
  display: block;
  width: 100%;
  padding-top: 100%;
}

.gallery-box .gallery-boxwrap img {
  transition: all 250ms ease-out;
}

.gallery-box:hover .gallery-boxwrap img {
  transform: scale(1.1);
}

.gallery-space {
  display: block;
  width: 100%;
  padding-top: 100%;
}

.gallery-boxout {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 8px;
  box-sizing: border-box;
}

.gallery-boxwrap {
  border: 1px solid #ebebeb;
  height: 100%;
  box-sizing: border-box;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  background: #ebebeb;
}

.gallery-boxwrap img {
  display: block;
  width: 100%;
}

.gallery-cover {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  opacity: 0;
  visibility: hidden;
  transition: all 400ms ease-out;
}

.gallery-cover .gallery-close {
  position: absolute;
  left: 50%;
  top: 150px;
  margin-left: -40px;
}

.gallery.show .gallery-cover {
  opacity: 1;
  visibility: visible;
}

.gallery-close {
  background: url("../images/gallery/gallery-close.png") 0 0 no-repeat;
  width: 80px;
  height: 80px;
  cursor: pointer;
}

.gallery-main {
  max-width: 800px;
  margin: 270px auto 0;
  position: relative;
}

.gallery-main:before {
  content: '';
  display: block;
  width: 100%;
  padding-top: 100%;
}

.gallery-frame {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
}

.gallery-content {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-content img {
  display: block;
  max-width: 100%;
}

.gallery-left {
  background: url(../images/gallery/arr.png) center center no-repeat;
  width: 32px;
  height: 68px;
  padding: 20px;
  position: absolute;
  top: 50%;
  margin-top: -44px;
  left: -15%;
  opacity: 0.6;
  transition: opacity 250ms ease-out;
  cursor: pointer;
}

.gallery-left:hover {
  opacity: 1;
}

.gallery-right {
  background: url(../images/gallery/arr.png) center center no-repeat;
  width: 32px;
  height: 68px;
  padding: 20px;
  transform: scaleX(-1);
  position: absolute;
  top: 50%;
  margin-top: -44px;
  right: -15%;
  opacity: 0.6;
  transition: opacity 250ms ease-out;
  cursor: pointer;
}

.gallery-right:hover {
  opacity: 1;
}

.gallery-show {
  max-width: 100%;
  max-height: 100%;
}

@media screen and (max-width: 960px) {
  .hide-m {
    display: none;
  }
  .gallery-box {
    width: 50%;
  }
}

@media screen and (max-width: 640px) {
  .gallery-box {
    width: 100%;
  }
}