.category_nav {
  border: none;
  margin: 0;
  display: flex;
  width: 100%;
  flex-wrap: wrap;
  justify-content: space-around;
}

.category_nav li+li,
.category_nav li {
  float: none;
  display: block;
  border: none!important;
  color: #006699;
  justify-content: center;
  margin-bottom: 15px;
  width: 47.5%;
  /*box-shadow: 0 0 4px #CACACa;*/
  border-radius: 5px;
}

.category_nav li a {
  border: 2.5px solid #006699;
  border-radius: 5px;
}

.category_nav li a i {
  font-size: 16px;
  position: absolute;
  right: 18px;
}

.category_nav li a {
  transition: .3s;
}

.category_nav li a:hover {
  color: #fff!important;
  background: #006699;
  opacity: 1;
}

.category_nav li:after {
  display: none!important;
}

#usefulBody .wrapper-main,
#usefulBody .wrapper-main a {
  color: #006699;
  font-weight: bold;
}

.box-useful .box .text .title {
  color: #333;
}

.order1 {
  order: 1;
}

.order2 {
  order: 2;
}

.order3 {
  order: 3;
}

.order4 {
  order: 4;
}

.box-useful .box:last-of-type {
  order: 5;
}


/*
.box-useful .box.api .image img {
width: 100%;
height: auto;
}
*/

.box-useful .box .image img[src="https://publish-p23257-e83870.adobeaemcloud.com//content/dam/tmnf/dp-tmn-agent-com/common/cf-assets/column/column-2020-007/1.jpg"] {
  max-height: 130%;
}

@media only screen and (max-width: 640px) {
  .category_nav.sp {
      display: flex!important;
  }
  .category_nav.sp:before,
  .category_nav.sp:after {
      display: none;
  }
  .category_nav li+li,
  .category_nav li {
      box-shadow: none;
      min-height: 18vw;
      margin-bottom: 1%;
      height: auto;
  }
  .category_nav li:before {
      display: none;
  }
  .category_nav li a {
      padding: 1rem 0 2rem;
      font-size: 3.3vw;
  }
  .box-useful .box .image {
      background: none!important;
  }
  .category_nav li a i {
      font-size: 13px;
      position: absolute;
      right: auto;
      bottom: 18px;
      transform: rotate(90deg);
      top: auto!important;
      right: 0;
      left: 0;
      margin: 0 auto;
      width: 14px;
  }
  _:-ms-lang(x)::-ms-backdrop,
  .category_nav li a i {
      top: auto;
  }
}

_:-ms-lang(x)::-ms-backdrop,
#usefulBody .wrapper-main .category_nav li a {
  padding-top: 22px!important;
  padding-bottom: 16px!important;
}

_:-ms-lang(x)::-ms-backdrop,
.category_nav li a i {
  top: calc(50% - 8px);
}

@media only screen and (max-width: 320px) {
  #usefulBody .wrapper-main a.catBtn {
      font-size: 1.6rem!important;
  }
}