.p-sub-category {
  margin: 30px 10px;
  padding: 0;
  list-style-type: none;
}

.p-sub-category::after {
  display: block;
  clear: both;
  content: '';
}

.p-sub-category__item {
  float: left;
  box-sizing: border-box;
  width: 50%;
  padding: 10px 5px;
}

.p-sub-category__image {
  display: block;
  margin-bottom: 10px;
}

.p-sub-category__link {
  display: block;
  transition: opacity .2s;
  text-decoration: none;
  color: #333;
}

.p-sub-category__link:hover {
  opacity: .66;
}

.p-sub-category__link:active {
  opacity: 1;
}

.p-sub-category__name {
  line-height: 1.3;
  position: relative;
  display: block;
  padding-left: .8em;
}

.p-sub-category__name::before {
  position: absolute;
  top: 0;
  left: 0;
  content: '-';
}

.narrow-down__category {
  padding: 0;
}

.narrow-down__category ul {
  width: 100%;
  display: flex;
  padding: 0;
}

.narrow-down__category li {
  display: block;
  width: 15%;
  padding: 1rem 0;
  margin-right: 20px;
  font-size: 0.9em;
  color: #3E70B3;
}

.border_slide_btn {
  position: relative;
  display: inline-block;
  color: #3E70B3;
  text-decoration: none;
}
.border_slide_btn:hover {
  cursor: pointer;
  text-decoration: none;
}
.border_slide_btn::after {
  position: absolute;
  bottom: -4px;
  left: 0;
  content: '';
  width: 100%;
  height: 2px;
  background: #3E70B3;
  transform: scale(0, 1);
  transform-origin: right top;
  transition: transform .3s;
}
.border_slide_btn:hover::after {
  transform-origin: left top;
  transform: scale(1, 1);
}

@media screen and (max-width: 750px) {
  .border_slide_btn::after {
    display: none;
  }
}
    
@media screen and (min-width: 600px) {
  .p-sub-category {
    margin-right: 0;
    margin-left: 0;
  }

  .p-sub-category__item {
    width: 25%;
    padding: 15px 10px;
  }

  .p-sub-category__item:nth-child(4n + 1) {
    clear: both;
  }
}

@media screen and (max-width: 599px) {
  .p-sub-category__item:nth-child(2n + 1) {
    clear: both;
  }
}