@charset "UTF-8";
.lectures-index {
  padding-bottom: 120px;
}

@media screen and (min-width: 641px) {
  .lectures-index {
    padding-bottom: 320px;
  }
}

.lectures-index-inner {
  max-width: 940px;
  margin: 0 auto;
}

.lectures-index-header {
  padding: 50px 0;
  text-align: center;
  color: #656565;
}

.lectures-index-title {
  font-size: 30px;
  font-size: 8vw;
  font-family: "SST W20 Light", sans-serif;
  font-weight: 400;
}

@media screen and (min-width: 641px) {
  .lectures-index-title {
    font-size: 33px;
    font-size: 2.0625rem;
  }
}

.lectures-index-subtitle {
  font-size: 13px;
  font-size: 3.46667vw;
  letter-spacing: -0.022em;
  margin-top: 2.66667vw;
}

@media screen and (min-width: 641px) {
  .lectures-index-subtitle {
    font-size: 13px;
    font-size: 0.8125rem;
    letter-spacing: 0;
    margin-top: 18px;
  }
}

.lectures-index-list {
  list-style: none;
}

@media screen and (min-width: 641px) {
  .lectures-index-list {
    padding-top: 20px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
  }
}

.lectures-index-item:nth-of-type(n + 2) {
  margin-top: 13.33333vw;
}

@media screen and (min-width: 641px) {
  .lectures-index-item {
    -webkit-box-flex: 0;
    -ms-flex: 0 0 300px;
    flex: 0 0 300px;
    max-width: 300px;
    margin-left: 20px;
  }
  .lectures-index-item:nth-of-type(3n + 1) {
    margin-left: 0;
  }
  .lectures-index-item:nth-of-type(n + 2) {
    margin-top: 0;
  }
  .lectures-index-item:nth-of-type(n + 4) {
    margin-top: 76px;
  }
}

.lectures-index-link {
  color: inherit;
  text-decoration: none;
}

.lectures-index .item-imgbox img {
  width: 100%;
}

.lectures-index .item-textbox {
  padding-top: 5.33333vw;
}

@media screen and (min-width: 641px) {
  .lectures-index .item-textbox {
    padding-top: 20px;
  }
}

.lectures-index .item-title {
  font-family: "SST W20 Roman", sans-serif;
  font-weight: 400;
  font-size: 18px;
  font-size: 4.8vw;
  letter-spacing: -0.03em;
  line-height: 1.66;
}

@media screen and (min-width: 641px) {
  .lectures-index .item-title {
    font-size: 18px;
    font-size: 1.125rem;
  }
}

.lectures-index .item-date {
  font-size: 12px;
  font-size: 3.2vw;
  margin-top: 5.33333vw;
  color: #656565;
  display: block;
}

@media screen and (min-width: 641px) {
  .lectures-index .item-date {
    font-size: 12px;
    font-size: 0.75rem;
    margin-top: 20px;
  }
}