:root {
  --color-main: #0057b7;
}

.mb-100 {
  margin-bottom: 100px;
}

.common-column__title {
  font-size: 40px;
  font-weight: 700;
  text-align: center;
  color: var(--color-main);
  margin-bottom: 1em;
}
@media (max-width: 768px) {
  .common-column__title {
    font-size: 32px;
  }
}
.common-column__sub-title {
  font-size: 18px;
  text-align: center;
}
@media (max-width: 768px) {
  .common-column__sub-title {
    font-size: 16px;
    text-align: left;
  }
}
.common-column__content {
  margin-top: 60px;
}
@media (max-width: 768px) {
  .common-column__content {
    margin-top: 40px;
  }
}
.common-column__list {
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: minmax(0, 1fr) 24px minmax(0, 1fr) 24px minmax(0, 1fr);
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  padding: 0;
  list-style: none;
}
@media (max-width: 768px) {
  .common-column__list {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 16px;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
  }
}
@media (max-width: 768px) {
  .common-column__item {
    max-width: 400px;
  }
}
.common-column__link {
  display: block;
  color: inherit;
  text-decoration: none;
}
.common-column__link:hover .common-column__item-title {
  text-decoration: underline;
}
.common-column__thumbnail {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #f7f7f7;
}
.common-column__image {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  display: block;
}
.common-column__item-title {
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.6;
}

.examples-list {
  max-width: 900px;
  margin-inline: auto;
  margin-top: 50px;
}
@media screen and (max-width: 768px) {
  .examples-list {
    margin-top: 40px;
  }
}
.examples-list__item {
  border-radius: 10px;
  -webkit-box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.25);
          box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.25);
  margin-bottom: 40px;
  overflow: hidden;
}
.examples-list__item:last-child {
  margin-bottom: 0;
}
.examples-list__header {
  padding: 0.75em 30px;
  background: var(--color-main);
  font-size: 24px;
  text-align: center;
  color: #fff;
  position: relative;
}
@media screen and (max-width: 768px) {
  .examples-list__header {
    padding: 16px 20px;
    padding-right: 3em;
    font-size: 20px;
    text-align: left;
  }
}
.examples-list__header:before, .examples-list__header:after {
  content: "";
  display: block;
  width: 30px;
  height: 2px;
  background: #fff;
  position: absolute;
  top: 50%;
  right: 30px;
  -webkit-transform: translateY(-50%);
          transform: translateY(-50%);
  z-index: 1;
  -webkit-transition: -webkit-transform 0.3s;
  transition: -webkit-transform 0.3s;
  transition: transform 0.3s;
  transition: transform 0.3s, -webkit-transform 0.3s;
}
@media screen and (max-width: 768px) {
  .examples-list__header:before, .examples-list__header:after {
    width: 1em;
    right: 1em;
  }
}
.examples-list__header:after {
  -webkit-transform: translateY(-50%) rotate(90deg);
          transform: translateY(-50%) rotate(90deg);
}
.examples-list__header.is-open:after {
  -webkit-transform: translateY(-50%) rotate(0deg);
          transform: translateY(-50%) rotate(0deg);
}
.examples-list__body {
  padding: 30px;
  background: #fff;
}
@media screen and (max-width: 768px) {
  .examples-list__body {
    padding: 20px;
  }
}
.examples-list__sub-title {
  font-size: 22px;
  text-align: center;
  margin-top: 20px;
  margin-bottom: 50px;
}
@media screen and (max-width: 768px) {
  .examples-list__sub-title {
    font-size: 18px;
    margin-bottom: 30px;
  }
}

.examples-item {
  margin-bottom: 40px;
}
@media screen and (max-width: 768px) {
  .examples-item {
    margin-bottom: 30px;
  }
}
.examples-item:last-child {
  margin-bottom: 0;
}
.examples-item__title {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  gap: 1em;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 15px;
}
@media screen and (max-width: 768px) {
  .examples-item__title {
    font-size: 18px;
  }
}
.examples-item__title:before, .examples-item__title:after {
  content: "";
  display: block;
  width: 2em;
  height: 3px;
  background: var(--color-main);
}
@media screen and (max-width: 768px) {
  .examples-item__title:before, .examples-item__title:after {
    height: 2px;
  }
}