.category {
  max-width: 1070px;
  margin: 20px auto 0;
  padding: 0;
}

.category h4 {
  margin: 0 5px 10px;
  font-size: 1.3em;
}

.category .list {
  margin: 0;
  padding: 0;
}

.category .list li ,
.category .more {
  float: left;
  width: 20%;
  padding: 0 5px 15px;
}
.category.is-mobile .list li ,
.category.is-mobile .more {
  width: 50%;
}

.category.is-pc .list li:nth-child(5n+1) {
  clear: left;
}
.category.is-mobile .list li:nth-child(2n+1) {
  clear: left;
}


.category .list li {
  display: block;
  list-style: none;
  text-align: center;
  overflow: hidden;
}
.category .list li.is-hidden {
  clear: none !important;
  width: 0;
  height: 0;
  padding: 0;
}

.category .list li a {
  display: block;
  opacity: 1;
  transition: all 2.5s ease 0s;
}
.category .list li.is-hidden a {
  opacity: 0;
}

.category .list li img {
  display: block;
  transition: 0.5s;
}
.category .list li a:hover img {
  opacity: 0.6;
  transition: 0.5s;
}

.category .list li p {
  margin: 0;
}

.category .list li p .fa-external-link {
  color: #aaa;
}



.category .more {
  text-align: center;
}

.category button {
  position: relative;
  width: 100%;
  background-color: #e8e8e8;
  border: none;
  border-radius: 0;
  cursor: pointer;
  outline: none;
  padding: 0;
}

.category button span {
  position: absolute;
  bottom: 3px;
  right: 8px;
}