.seminar-sidebar {
  width: 20%;
  border-top: 1px solid #ccc;
  padding-top: 20px;
}
@media (max-width: 768px) {
  .seminar-sidebar {
    flex: none;
    width: 100%;
    border-top: none;
    padding-top: 0;
    margin-top: 30px;
    background: #FFFFFF;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  }
}
.seminar-sidebar__item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 12px 15px;
  background: transparent;
  border: none;
  text-align: left;
  font-size: 14px;
}
@media (max-width: 1024px) {
  .seminar-sidebar__item {
    font-size: 13px;
  }
}
@media (max-width: 768px) {
  .seminar-sidebar__item {
    font-size: 12px;
  }
}
@media (max-width: 480px) {
  .seminar-sidebar__item {
    font-size: 10px;
  }
}
.seminar-sidebar__item {
  cursor: pointer;
  transition: all 0.3s;
  margin-bottom: 5px;
}
.seminar-sidebar__item:hover {
  background: #FAF5F1;
}
.seminar-sidebar__item:hover .seminar-sidebar__arrow {
  background-image: url("../images/common/arr_bread_r.svg");
}
.seminar-sidebar__item--active {
  color: #CC1F22;
  font-weight: 500;
}
.seminar-sidebar__item--active .seminar-sidebar__arrow {
  background-image: url("../images/common/arr_bread_r.svg");
}
@media (max-width: 768px) {
  .seminar-sidebar__item {
    padding: 10px 12px;
    border-bottom: 1px solid #E5E5E5;
    margin-bottom: 0;
  }
  .seminar-sidebar__item:last-child {
    border-bottom: none;
  }
  .seminar-sidebar__item:hover {
    background: #FAF5F1;
  }
  .seminar-sidebar__item--active {
    color: #CC1F22;
    font-weight: 500;
    background: transparent;
  }
}
@media (max-width: 480px) {
  .seminar-sidebar__item {
    padding: 8px 10px;
  }
}
.seminar-sidebar__arrow {
  width: 7px;
  height: 12px;
  background-image: url("../images/common/arr_bread.svg");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  display: inline-block;
}
@media (max-width: 768px) {
  .seminar-sidebar__arrow {
    width: 6px;
    height: 10px;
  }
}
@media (max-width: 480px) {
  .seminar-sidebar__arrow {
    width: 5px;
    height: 9px;
  }
}
.seminar-sidebar__text {
  flex: 1;
}

.seminar-list {
  padding: 90px 0 170px;
  background: #F9F4EE;
}
@media (max-width: 768px) {
  .seminar-list {
    padding: 60px 0;
  }
}
@media (max-width: 480px) {
  .seminar-list {
    padding: 40px 0;
  }
}
.seminar-list__wrapper {
  display: flex;
  flex-direction: row-reverse;
  gap: 60px;
}
@media (max-width: 768px) {
  .seminar-list__wrapper {
    flex-direction: column;
    gap: 0;
  }
}
.seminar-list__content {
  flex: 1;
  border-top: 1px solid #ccc;
  padding-top: 0;
}
@media (max-width: 768px) {
  .seminar-list__content {
    border-top: none;
    width: 100%;
  }
}
.seminar-list__grid {
  display: grid;
  margin-bottom: 0;
}
@media (max-width: 768px) {
  .seminar-list__grid {
    padding-top: 0;
  }
}
.seminar-list-card {
  display: flex;
  gap: 30px;
  border-bottom: 1px solid #ccc;
  padding: 40px 0;
  align-items: center;
}
@media (max-width: 768px) {
  .seminar-list-card {
    flex-direction: column;
    gap: 20px;
    padding: 30px 0;
  }
}
.seminar-list-card__image-wrapper {
  flex: 0 0 300px;
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}
@media (max-width: 768px) {
  .seminar-list-card__image-wrapper {
    flex: none;
    width: 100%;
    aspect-ratio: 4/3;
  }
}
.seminar-list-card__image {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.seminar-list-card__date {
  position: absolute;
  bottom: 20px;
  left: 20px;
  color: #FFFFFF;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}
@media (max-width: 768px) {
  .seminar-list-card__date {
    bottom: 15px;
    left: 15px;
  }
}
.seminar-list-card__year {
  display: block;
  font-size: 24px;
}
@media (max-width: 1024px) {
  .seminar-list-card__year {
    font-size: 22px;
  }
}
@media (max-width: 768px) {
  .seminar-list-card__year {
    font-size: 18px;
  }
}
@media (max-width: 480px) {
  .seminar-list-card__year {
    font-size: 16px;
  }
}
.seminar-list-card__year {
  font-weight: 400;
  margin-bottom: -5px;
}
.seminar-list-card__date-bottom {
  display: flex;
  align-items: center;
  gap: 10px;
}
.seminar-list-card__day {
  font-size: 60px;
}
@media (max-width: 1024px) {
  .seminar-list-card__day {
    font-size: 48px;
  }
}
@media (max-width: 768px) {
  .seminar-list-card__day {
    font-size: 42px;
  }
}
@media (max-width: 480px) {
  .seminar-list-card__day {
    font-size: 28px;
  }
}
.seminar-list-card__day {
  font-weight: bold;
  line-height: 1;
}
.seminar-list-card__datetime {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-left: -5px;
}
.seminar-list-card__weekday {
  font-size: 24px;
}
@media (max-width: 1024px) {
  .seminar-list-card__weekday {
    font-size: 22px;
  }
}
@media (max-width: 768px) {
  .seminar-list-card__weekday {
    font-size: 18px;
  }
}
@media (max-width: 480px) {
  .seminar-list-card__weekday {
    font-size: 16px;
  }
}
.seminar-list-card__weekday {
  line-height: 1.25;
  font-weight: 400;
}
.seminar-list-card__time {
  font-size: 16px;
}
@media (max-width: 1024px) {
  .seminar-list-card__time {
    font-size: 15px;
  }
}
@media (max-width: 768px) {
  .seminar-list-card__time {
    font-size: 14px;
  }
}
@media (max-width: 480px) {
  .seminar-list-card__time {
    font-size: 12px;
  }
}
.seminar-list-card__time {
  font-weight: 400;
  margin-top: -2px;
}
.seminar-list-card__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  width: 80%;
}
@media (max-width: 768px) {
  .seminar-list-card__content {
    width: 100%;
  }
}
.seminar-list-card__tag {
  display: inline-block;
  padding: 6px 12px;
  background: #8B839C;
  color: #FFFFFF;
  border-radius: 20px;
  font-size: 12px;
}
@media (max-width: 1024px) {
  .seminar-list-card__tag {
    font-size: 12px;
  }
}
@media (max-width: 768px) {
  .seminar-list-card__tag {
    font-size: 12px;
  }
}
@media (max-width: 480px) {
  .seminar-list-card__tag {
    font-size: 10px;
  }
}
.seminar-list-card__tag {
  font-weight: 500;
  line-height: 1;
  margin-bottom: 15px;
  align-self: flex-start;
}
@media (max-width: 768px) {
  .seminar-list-card__tag {
    padding: 5px 10px;
  }
}
@media (max-width: 480px) {
  .seminar-list-card__tag {
    padding: 4px 8px;
    margin-bottom: 10px;
  }
}
.seminar-list-card__description {
  font-size: 16px;
}
@media (max-width: 1024px) {
  .seminar-list-card__description {
    font-size: 15px;
  }
}
@media (max-width: 768px) {
  .seminar-list-card__description {
    font-size: 14px;
  }
}
@media (max-width: 480px) {
  .seminar-list-card__description {
    font-size: 12px;
  }
}
.seminar-list-card__description {
  line-height: 1.8;
  margin-bottom: 30px;
}
@media (max-width: 768px) {
  .seminar-list-card__description {
    margin-bottom: 20px;
  }
}
@media (max-width: 480px) {
  .seminar-list-card__description {
    margin-bottom: 15px;
  }
}
.seminar-list-card__actions {
  display: flex;
  align-items: center;
  gap: 15px;
}
.seminar-list-card__button {
  display: inline-block;
  padding: 6px 10px;
  background: #CC1F22;
  color: #FFFFFF;
  border-radius: 4px;
  font-size: 12px;
}
@media (max-width: 1024px) {
  .seminar-list-card__button {
    font-size: 12px;
  }
}
@media (max-width: 768px) {
  .seminar-list-card__button {
    font-size: 12px;
  }
}
@media (max-width: 480px) {
  .seminar-list-card__button {
    font-size: 10px;
  }
}
.seminar-list-card__button {
  line-height: 1;
  font-weight: 500;
}
@media (max-width: 768px) {
  .seminar-list-card__button {
    padding: 5px 8px;
  }
}
@media (max-width: 480px) {
  .seminar-list-card__button {
    padding: 4px 6px;
  }
}
.seminar-list-card__mail {
  font-size: 14px;
}
@media (max-width: 1024px) {
  .seminar-list-card__mail {
    font-size: 13px;
  }
}
@media (max-width: 768px) {
  .seminar-list-card__mail {
    font-size: 12px;
  }
}
@media (max-width: 480px) {
  .seminar-list-card__mail {
    font-size: 10px;
  }
}
.seminar-list-card__mail {
  color: #666;
}

.news__list {
  width: 80%;
  border-top: 1px solid #ccc;
}
@media (max-width: 768px) {
  .news__list {
    width: 100%;
  }
}
.news__list .news__item {
  border: none;
  border-bottom: 1px solid #ccc;
}

.seminar-pagination {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding-top: 40px;
}
@media (max-width: 768px) {
  .seminar-pagination {
    gap: 15px;
    padding-top: 30px;
  }
}
@media (max-width: 480px) {
  .seminar-pagination {
    gap: 10px;
  }
}
.seminar-pagination__btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #F5F5F5;
  border: none;
  border-radius: 50%;
  font-size: 14px;
}
@media (max-width: 1024px) {
  .seminar-pagination__btn {
    font-size: 13px;
  }
}
@media (max-width: 768px) {
  .seminar-pagination__btn {
    font-size: 12px;
  }
}
@media (max-width: 480px) {
  .seminar-pagination__btn {
    font-size: 10px;
  }
}
.seminar-pagination__btn {
  font-weight: 500;
  color: #CC1F22;
  cursor: pointer;
  transition: all 0.3s;
}
.seminar-pagination__btn:hover {
  background: #CC1F22;
  color: #FFFFFF;
}
.seminar-pagination__btn--active {
  background: #CC1F22;
  color: #FFFFFF;
}
@media (max-width: 768px) {
  .seminar-pagination__btn {
    width: 35px;
    height: 35px;
  }
}
@media (max-width: 480px) {
  .seminar-pagination__btn {
    width: 30px;
    height: 30px;
  }
}

.container {
  max-width: 1140px;
  margin: 0 auto;
}
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
}

.seminar-detail__contact {
  text-align: center;
  padding-top: 40px;
}
.seminar-detail__contact-btn {
  display: inline-flex;
  align-items: center;
  background: #E62327;
  color: #FFFFFF;
  padding: 12px 36px;
  border-radius: 50px;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  padding-right: 50px;
  text-decoration: none;
  font-size: 16px;
}
@media (max-width: 1024px) {
  .seminar-detail__contact-btn {
    font-size: 15px;
  }
}
@media (max-width: 768px) {
  .seminar-detail__contact-btn {
    font-size: 14px;
  }
}
@media (max-width: 480px) {
  .seminar-detail__contact-btn {
    font-size: 12px;
  }
}
.seminar-detail__contact-btn:hover {
  background: #CC1F22;
}
.seminar-detail__contact-btn::after {
  content: "";
  position: absolute;
  right: 20px;
  width: 7px;
  height: 18px;
  background-image: url("../images/common/arr_w.svg");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  top: 50%;
  transform: translateY(-50%);
}
@media (max-width: 768px) {
  .seminar-detail__contact-btn {
    padding: 15px 50px;
  }
}
@media (max-width: 480px) {
  .seminar-detail__contact-btn {
    padding: 12px 40px;
  }
}