.visual-main {
  background-image: url(../images/corporation/main.jpg);
  background-position: center;
}
#message {
  padding-bottom: 0px;
}
.trainings {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}
@media screen and (max-width: 767px) {
  .trainings {
    flex-direction: column;
    gap: 2.5rem;
  }
}
.trainings .training {
  width: 35rem;
  max-width: 100%;
  background-color: #fff;
}
@media screen and (max-width: 767px) {
  .trainings .training {
    width: 100%;
  }
}
.trainings .training .ttl {
  background-color: #5f788e;
  height: 15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 2rem;
  color: #fff;
  font-weight: bold;
  font-size: 2.1rem;
  line-height: 3.8rem;
}
.trainings .training .detail {
  padding: 2.5rem;
  padding-bottom: 3rem;
}

.training-note {
  margin-top: 3rem;
  font-size: 1.8rem;
  font-weight: bold;
  text-align: center;
  color: #4e4b3f;
}

.case-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}
@media screen and (min-width: 768px) {
  .case-tabs {
    gap: 2rem;
  }
}
.case-tabs li {
  width: 28rem;
}
.case-tabs li a {
  display: block;
  text-align: center;
  padding: 1rem 1.5rem;
  border: 1px solid rgba(4, 37, 95, 0.4);
  color: #04255f;
  font-weight: bold;
}
@media screen and (min-width: 768px) {
  .case-tabs li a {
    transition: 0.3s;
  }
  .case-tabs li a:hover {
    background-color: #04255f;
    color: #fff;
  }
}

.lesson {
  padding-top: 6rem;
  padding-bottom: 5rem;
}
.lesson:not(:last-child) {
  border-bottom: 1px solid rgba(4, 37, 95, 0.4);
}
@media screen and (min-width: 768px) {
  .lesson {
    padding-top: 8rem;
    padding-bottom: 7rem;
  }
}
.lesson .lesson-heading {
  margin-bottom: 4rem;
}
@media screen and (min-width: 768px) {
  .lesson .lesson-heading {
    margin-bottom: 5rem;
  }
}
.lesson .lesson-heading .txt-lg {
  margin-bottom: 1rem !important;
}
.lesson .lesson-heading .txt-md {
  margin-top: 2rem;
}
.lesson .list-disc {
  padding-bottom: 1em;
  border-bottom: 1px solid rgba(4, 37, 95, 0.4);
  margin-bottom: 1em;
}
.lesson .row .col-left img {
  display: block;
  width: 100%;
}

.curriculun {
  margin-top: 5rem;
}
.curriculun .ttl {
  font-weight: bold;
  font-size: 1.8rem;
  margin-bottom: 2rem;
}
@media screen and (max-width: 767px) {
  .curriculun .ttl {
    text-align: center;
    margin-bottom: 3.5rem;
  }
}
.curriculun .ttl2 {
  margin-top: 5rem;
}
@media screen and (min-width: 768px) {
  .curriculun .ttl2 {
    margin-top: 7rem;
  }
}
.curriculun .curriculum-list {
  display: flex;
  flex-wrap: wrap;
  -moz-column-gap: 4rem;
       column-gap: 4rem;
}
.curriculun .curriculum-list li {
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(4, 37, 95, 0.4);
  color: #707070;
  width: 100%;
  padding: 2rem 0;
}
@media screen and (min-width: 768px) {
  .curriculun .curriculum-list li {
    width: calc(50% - 2rem);
  }
  .curriculun .curriculum-list li:nth-child(2) {
    border-top: 1px solid rgba(4, 37, 95, 0.4);
  }
}
.curriculun .curriculum-list li:first-child {
  border-top: 1px solid rgba(4, 37, 95, 0.4);
}
.curriculun .curriculum-list li .numb {
  font-family: "Playfair Display", serif;
  font-size: 3.2rem;
  width: 5rem;
}
.curriculun .curriculum-list li .txt {
  line-height: 3.2rem;
  font-size: clamp(1.5rem, 1.3756906077rem + 0.3314917127vw, 1.8rem);
}
@media screen and (min-width: 768px) {
  .curriculun .curriculum-list li .txt {
    font-weight: bold;
  }
}
.curriculun .curriculum-note {
  text-align: center;
  font-size: clamp(1.5rem, 1.3756906077rem + 0.3314917127vw, 1.8rem);
  margin-top: 5rem;
  margin-bottom: 4rem;
}
@media screen and (min-width: 768px) {
  .curriculun .curriculum-note {
    margin-top: 7rem;
    margin-bottom: 5rem;
    font-weight: bold;
  }
}