body {
  background-image: url(../img/insider-alert/insider_alert_bg.jpg);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.l-header.fixed-header {
  display: block !important;
  background-color: #fff !important;
}

.p-breadcrumb .breadcrumb a,
.p-breadcrumb .breadcrumb span {
  font-size: 14px;
}

.main {
  padding-top: 98px;
}

.main .mv .container {
  max-width: 100%;
  width: 100%;
  padding: 0;
}

.main .about .container {
  max-width: 1160px;
  padding-top: 11rem;
  padding-bottom: 11rem;
}

.main .about .wrapper .ttl {
  max-width: 1000px;
  margin-right: auto;
  margin-left: auto;
}

.main .about .wrapper .sub_ttl {
  position: relative;
  max-width: 538px;
  margin-top: 4rem;
  margin-right: auto;
  margin-left: auto;
  left: 3rem;
}

.main .about .wrapper .block {
  margin-top: 4.2rem;
}

.main .about .wrapper .block .alert_list {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
}

.main .about .wrapper .block .alert_list .alert_item {
  flex: 0 0 20%;
  border-top: 1px solid #000;
  border-right: 1px solid #000;
  background-color: #fff;
}

.main .about .wrapper .block .alert_list .alert_item:nth-child(5n) {
  border-right: none;
}

.main .about .wrapper .block .alert_list .alert_item .alert_item_ttl {
  position: relative;
  padding: 13px 11px 0;
  padding-bottom: 2.7rem;
  font-size: 17px;
  text-align: center;
}

.main .about .wrapper .block .alert_list .alert_item .alert_item_ttl::before {
  position: absolute;
  content: "";
  background-color: #000;
  width: 43px;
  height: 2px;
  bottom: 14px;
  right: 0;
  left: 0;
  margin: auto;
}

.main .about .wrapper .block .alert_list .alert_item .flex_box {
  display: flex;
  padding-right: 13px;
}

.main .about .wrapper .block .alert_list .alert_item .flex_box .img {
  flex: 0 0 47%;
  margin-right: 4%;
}

.main .about .wrapper .block .alert_list .alert_item .flex_box .text_info {
  flex: auto;
}

.main .about .wrapper .block .alert_list .alert_item .flex_box .text_info .category {
  padding: 6px 0;
  background-color: #46A0AF;
  line-height: calc(16 / 14);
  color: #fff;
  text-align: center;
  border-radius: 3px;
}

.main .about .wrapper .block .alert_list .alert_item .flex_box .text_info .name {
  text-align: center;
  line-height: calc(19 / 14);
}

.main .about .wrapper .block .alert_list .alert_item .flex_box .text_info .info {
  line-height: calc(20 / 13);
  font-size: 13px;
  margin-bottom: 0;
}

@media screen and (max-width: 1024px) {
  .main .about .wrapper .block .alert_list .alert_item {
    flex: 0 0 25%;
  }

  .main .about .wrapper .block .alert_list .alert_item:nth-child(5n) {
    border-right: 1px solid #000;
  }

  .main .about .wrapper .block .alert_list .alert_item:nth-child(4n) {
    border-right: none;
  }
}

@media screen and (max-width: 768px) {
  .main .about .wrapper .block .alert_list .alert_item {
    flex: 0 0 33.3%;
  }

  .main .about .wrapper .block .alert_list .alert_item:nth-child(4n) {
    border-right: 1px solid #000;
  }

  .main .about .wrapper .block .alert_list .alert_item:nth-child(3n) {
    border-right: none;
  }
}

@media screen and (max-width: 480px) {
  .main {
    padding-top: 56px;
  }

  .main .about .container {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .main .about .wrapper .sub_ttl {
    position: relative;
    max-width: 250px;
    margin-top: 2rem;
    margin-right: auto;
    margin-left: auto;
    left: 1.3rem;
  }

  .main .about .wrapper .block .alert_list .alert_item {
    flex: 0 0 50%;
    padding-bottom: 1.5rem;
  }

  .main .about .wrapper .block .alert_list .alert_item .flex_box {
    display: block;
    padding: 0 12px;
  }

  .main .about .wrapper .block .alert_list .alert_item .flex_box .img {
    width: 80%;
    margin: auto;
    margin-bottom: 1rem;
  }

  .main .about .wrapper .block .alert_list .alert_item:nth-child(3n) {
    border-right: 1px solid #000;
  }

  .main .about .wrapper .block .alert_list .alert_item:nth-child(2n) {
    border-right: none;
  }

  .main .about .wrapper .block .alert_list .alert_item .flex_box .text_info {
    padding: 0 12px;
  }

  .main .about .wrapper .block .alert_list .alert_item .flex_box .text_info .category {
    font-size: 12px;
  }

  .main .about .wrapper .block .alert_list .alert_item .flex_box .text_info .name {
    font-size: 14px;
  }

  .main .about .wrapper .block .alert_list .alert_item .flex_box .text_info .info {
    font-size: 11px;
  }

  .main .about .wrapper .block .alert_list .alert_item .alert_item_ttl {
    font-size: 14px;
  }
}