/* topics */
.p-topics .bottom-navi--bisley {
  background-color: #EEEEEE;
}

/* utility */
.u-text-center {
  text-align: center;
}

.u-color-red {
  color: #BF0017;
}

.u-color-blue {
  color: #192e56;
}

.u-link-under {
  text-decoration: underline;
}

.u-link-under:hover {
  text-decoration: none;
}

/* topics layout */
.topics {
  overflow: hidden;
}

.topics__content {
  width: 95%;
  max-width: 1000px;
  margin: 0 auto 80px;
}

@media (max-width: 768px) {
  .topics__content {
    margin-bottom: 40px;
  }
}

.topics__content img {
  max-width: 100%;
  height: auto;
}

.headding_ttl {
  font-size: 28px;
  line-height: 44px;
  font-weight: 400;
  font-feature-settings: 'palt';
  color: #303134;
  margin-top: 111px;
  margin-bottom: 94px;
  text-align: center;
}

@media (max-width: 768px) {
  .headding_ttl {
    margin-top: 30px;
    margin-bottom: 20px;
  }
}

.topics__date {
  color: #000;
  font-size: 13px;
  text-align: center;
  margin-bottom: 16px;
}

.topics__title {
  font-size: clamp(18px, 3.1vw, 24px);
  font-weight: 400;
  line-height: 1.5;
  text-align: center;
  margin-bottom: 24px;
}

/* figure */
.topics__figure {
  margin-bottom: 40px;
}

.topics__figure img {
  margin-bottom: 8px;
}

@media (max-width: 768px) {
  .topics__figure img {
    margin-bottom: 4px;
  }
}

.topics__figure figcaption {
  text-align: center;
  font-size: 13px;
  line-height: 1.5;
}

.topics__figure[data-lightbox] img {
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .topics__figure[data-lightbox]:hover {
    opacity: 1;
  }
}

/* lightbox */
.lb-container {
  max-width: 1200px;
}

/* text */
.topics__text {
  margin-bottom: 32px;
}

.topics__text p {
  font-size: 14px;
  line-height: 1.5;
}

.topics__text p:not(:last-child) {
  margin-bottom: 16px;
}

/* table */
.topics__table {
  width: 100%;
  max-width: 800px;
  border-collapse: collapse;
  margin-bottom: 32px;
}

.topics__table tr td:first-child {
  white-space: nowrap;
}

.topics__table th,
.topics__table td {
  border: 1px solid #cccccc;
  padding: 16px;
  text-align: left;
  font-size: 14px;
  font-size: clamp(10px, 2.9vw, 14px);
  line-height: 1.5;
}

@media (max-width: 480px) {

  .topics__table th,
  .topics__table td {
    padding: 8px;
  }
}

.topics__table th {
  font-weight: 600;
}

/* list */
.topics__list {
  margin-bottom: 32px;
}

.topics__list li {
  font-size: 14px;
  line-height: 1.5;
}

.topics__list li:not(:last-child) {
  margin-bottom: 8px;
}

.topics__list--disc {
  list-style-type: disc;
  padding-left: 20px;
}

.topics__list--num {
  list-style-type: decimal;
  padding-left: 20px;
}

/* columns */
.topics__col {
  display: flex;
  margin-bottom: 32px;
}

.topics__col--reverse {
  flex-direction: row-reverse;
}

/* 2 column */
@media (max-width: 768px) {
  .topics__col--2 {
    flex-direction: column;
  }
}
.topics__col--2 .topics__figure {
  width: calc(100% / 2);
  margin-bottom: 0;
}
.topics__col--2 .topics__figure:not(:last-child) {
  margin-right: 16px;
}
@media (max-width: 768px) {
  .topics__col--2 .topics__figure {
    width: 100%;
  }
  .topics__col--2 .topics__figure:not(:last-child) {
    margin-right: 0;
    margin-bottom: 8px;
  }
}

/* 4 column */
@media (max-width: 768px) {
  .topics__col--4 {
    flex-direction: column;
  }
}
.topics__col--4 .topics__figure {
  width: calc(100% / 4);
  margin-bottom: 0;
}
.topics__col--4 .topics__figure:not(:last-child) {
  margin-right: 8px;
}
@media (max-width: 768px) {
  .topics__col--4 .topics__figure {
    width: 100%;
  }
  .topics__col--4 .topics__figure:not(:last-child) {
    margin-right: 0;
    margin-bottom: 8px;
  }
}

/* 8 column */
@media (max-width: 768px) {
  .topics__col--8 {
    flex-direction: column;
  }
}
.topics__col--8 .topics__figure {
  width: calc(100% / 8);
  margin-bottom: 0;
}
.topics__col--8 .topics__figure:not(:last-child) {
  margin-right: 8px;
}
@media (max-width: 768px) {
  .topics__col--8 .topics__figure {
    width: 100%;
  }
  .topics__col--8 .topics__figure:not(:last-child) {
    margin-right: 0;
    margin-bottom: 8px;
  }
}

/* column text */
.topics__col-text {
  width: calc(100% / 2);
}

@media (max-width: 768px) {
  .topics__col-text {
    width: 100%;
  }
}

.topics__col-text p {
  font-size: 14px;
  line-height: 1.5;
}

.topics__col-text p:not(:last-child) {
  margin-bottom: 16px;
}

/* lightbox arrows */
.lb-nav a.lb-prev {
  background: url(../img/common/ic_lightbox_prev.png) left 48% no-repeat;
}

.lb-nav a.lb-next {
  background: url(../img/common/ic_lightbox_next.png) right 48% no-repeat;
}

.lb-prev,
.lb-next {
  opacity: 1 !important;
}