.banner {
  width: 100%;
}
.banner img {
  width: 100%;
}

.nav_box {
  padding-left: 15px;
  padding-right: 15px;
  display: flex;
  justify-content: center;
  background-color: #70869e;
}
.nav_box ul {
  display: flex;
}
.nav_box ul li {
  /* flex: 1; */
  /* margin: 0 10px; */
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px 30px;
}
.nav_box ul li:hover a {
  color: #3c4d5b;
}
.nav_box .fill {
  background-color: #adb9c6;
}
.nav_box .fill a {
  color: #3c4d5b;
}
.nav_box ul li a {
  color: #fff;
}

.text_content {
  max-width: 1230px;
  /* margin: 0 auto; */
  padding-left: 15px;
  padding-right: 15px;
  margin: 50px auto;
}
.text_content .tit {
  border-bottom: 2px solid #3c4d5b;
  padding-bottom: 15px;
  padding-top: 20px;
}
.text_content .tit h2 {
  color: #343c45;
}
.text_content .font p {
  margin: 30px 0;
  font-size: 18px;
  color: #1f252b;
}
.text_content .table table {
  width: 100%;
  margin-top: 30px;
}
.text_content .table table td {
  padding: 20px 15px;
}
.text_content .table table td:first-child {
  width: 20%;
  background-color: #70869e;
}
.text_content .table table td:last-child {
  width: 80%;
  background-color: #adb9c6;
}

@media screen and (min-width: 100px) {
  .text_content .table table tr {
    display: flex;
    flex-direction: column;
  }
  .text_content {
    width: 100%;
  }
  .text_content .table table td:first-child {
    width: 100%;
    margin-bottom: 2px;
  }
  .text_content .table table td:last-child {
    width: 100%;
    margin-bottom: 2px;
  }
  .nav_box ul {
    display: flex;
    flex-direction: column;
  }
}
@media screen and (min-width: 820px) {
  .text_content .table table tr {
    display: flex;
    flex-direction: column;
  }
  .text_content {
    width: 100%;
  }
  .text_content .table table td:first-child {
    width: 100%;
    margin-bottom: 2px;
  }
  .text_content .table table td:last-child {
    width: 100%;
    margin-bottom: 2px;
  }
  .nav_box ul {
    display: flex;
    flex-direction: column;
  }
}
@media screen and (min-width: 1000px) {
  .text_content .table table tr {
    display: revert;
  }
  .text_content {
    max-width: 1230px;
  }
  .text_content .table table td:first-child {
    width: 20%;
    margin-bottom: 0;
  }
  .text_content .table table td:last-child {
    width: 80%;
    margin-bottom: 0;
  }
  .nav_box ul {
    display: flex;
    flex-direction: initial;
  }
}