.about-block{
    padding: 30px 0;
}
.about-block__ttl{
    margin-bottom: 15px;
}
.about-block__block{
    gap: 20px 0;
}
.about-content{
    background: #f2f2f2;
    padding: 50px 0;
}
/* section-history */
.section-history{
    padding: 30px 0;
}
.history-heading{
    text-align: center;
    max-width: 770px;
    margin: 0 auto 40px;
}
.history-heading__ttl{
    margin-bottom: 15px;
}
.history-list{
    position: relative;
}
.history-list{}
.history-list__item{
    width: calc(50% - 40px);
    border-radius: 20px;
    border: 2px solid #9dd684;
    padding: 20px;
    position: relative;
}
.history-list__item::before{
    content: "";
    position: absolute;
    top: 60px;
    left: -43px;
    height: 100%;
    width: 2px;
    background: var(--color-main2);
}
.history-list__item:last-child::before{
    opacity: 0;
}
.history-list__item::after{
    content: "";
    position: absolute;
    top: 50px;
    left: -50px;
    height: 16px;
    width: 16px;
    background: #9dd684;
    border-radius: 50%;
}
.history-list__ttl::before{
    content: "";
    position: absolute;
    top: 57px;
    right: 100%;
    height: 2px;
    width: 48px;
    background: #9dd684;
}


.history-list__ttl{
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
}
/*  */
.section-board-of-directors{
    padding: 40px 0;
}
.board-directors{
    gap: 30px 0;
}
.board-directors:not(:last-child){
    margin-bottom: 60px;
}
.board-directors__wrap:hover .board-directors__ct{
    margin-top: -50px;
}
.board-directors__wrap:hover .board-directors__img img{
    transform: scale(1.09);
}
.board-directors__item{
    padding: 0 30px;
}
.board-directors__img{
    position: relative;
    background: #d6d5d2;
    overflow: hidden;
    line-height: 0;
}
.board-directors__img>a{
    display: block;
    padding-top: calc((354 / 320) * 100%);
}
.board-directors__img>a img{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all .6s ease-in;
}
.board-directors__ct{
    margin: -40px 20px 0;
    background: white;
    box-shadow: 0 0 11px rgba(0, 0, 0, 0.16);
    padding: 20px;
    text-align: center;
    position: relative;
    z-index: 2;
    transition: all .3s ease-in;
}
.board-directors__ttl{
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 5px;
}
.board-directors__position{
    color: #db545a;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
}
.board-directors__desc{
    font-size: 14px;
}
.section-company{
    padding: 40px 0;
}
.company-heading{
    margin-bottom: 30px;
}
.company-heading__ttl{
    margin-bottom: 10px;
}
.company-tab__list{
    display: flex;
    flex-wrap: wrap;
}
.company-tab__list-item.is-active a{
    border-color: var(--color-main2);
    color: var(--color-main2);
}
.company-tab__list-link{
    border: 2px solid transparent;
    border-radius: 32px;
    padding: 5px 10px;
    color: #666666d9;
    font-size: 13px;
    display: block;
}
.company-tab__content{
    display: none;
}
.company-tab__content.is-active{
    display: block;
}

.company-member{}
.company-member__ttl{
    margin-bottom: 15px;
}
.company-tab__list{
    margin-bottom: 15px;
}
.company-grid {
    gap: 20px 0;
}
.company-grid__wrap{
    border: 1px solid #f2f2f2;
    height: 100%;
    box-shadow: 0 0 9px 0px rgb(0 0 0 / 13%);
    display: block;
    border-radius: 8px;
    overflow: hidden;
}
.company-grid__img{
    padding: 10px;
}
.company-grid__ttl{
    padding: 10px;
    border-top: 1px solid #f2f2f2;
}
.company-banner{
    padding: 40px 0;
}
.section-member-detail{
    padding: 30px 0;
}
.profile-member {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

/* Block: profile-header */
.profile-member-header {
    display: flex;
    align-items: flex-start;
    padding: 20px;
    background: #1f682c;
    color: white;
}

/* Element: profile-header__image */
.profile-member-header__image {
    width: 180px;
    height: 220px;
    border-radius: 8px;
    object-fit: cover;
    border: 4px solid white;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

/* Element: profile-header__info */
.profile-member-header__info {
    flex: 1;
    margin-left: 20px;
}

/* Element: profile-header__title */
.profile-member-header__title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 10px;
}

/* Element: profile-header__detail */
.profile-member-header__detail {
    font-size: 16px;
    margin-bottom: 10px;
    display: flex;
    align-items: baseline;
}

/* Element: profile-header__label */
.profile-member-header__label {
    font-weight: 600;
    margin-right: 10px;
}

/* Element: profile-header__value */
.profile-member-header__value {
    flex: 1;
}

/* Block: profile-body */
.profile-member-body {
    padding: 20px;
}

/* Element: profile-body__title */
.profile-member-body__title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 25px;
    color: #333;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 3px solid var(--color-main2);
    padding-bottom: 10px;
}

/* Block: timeline */
.timeline {
    position: relative;
}

/* Element: timeline__item */
.timeline__item {
    position: relative;
    padding-bottom: 25px;
    padding-left: 30px;
}

.timeline__item:last-child {
    padding-bottom: 0;
}

/* Before pseudo-element for timeline line */
.timeline__item:before {
    content: '';
    position: absolute;
    left: -5px;
    top: 8px;
    bottom: -25px;
    width: 2px;
    background-color: #e0e0e0;
}

.timeline__item:last-child:before {
    display: none;
}

/* After pseudo-element for timeline dot */
.timeline__item:after {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--color-main2);
    border: 3px solid white;
    box-shadow: 0 0 0 2px var(--color-main2);
}

/* Element: timeline__period */
.timeline__period {
    font-weight: 600;
    color: var(--color-main2);
    margin-bottom: 5px;
}

/* Element: timeline__position */
.timeline__position {
    color: #333;
    font-size: 15px;
    line-height: 1.5;
}

/* Modifier: timeline__item--current */
.timeline__item--current:after {
    background-color: #2ecc71;
    box-shadow: 0 0 0 2px #2ecc71, 0 0 10px rgba(46, 204, 113, 0.5);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 2px #2ecc71, 0 0 10px rgba(46, 204, 113, 0.5);
    }
    50% {
        box-shadow: 0 0 0 2px #2ecc71, 0 0 20px rgba(46, 204, 113, 0.8);
    }
        }
@media (min-width: 768px){
    .history-list__item:nth-child(2n){
        margin-left: auto;
        margin-top: -70px;
    }
    .history-list__item:nth-child(odd):after{
        left: auto;
        right: -50px;
    }
    .history-list__item:nth-child(odd):before{
        left: auto;
        right: -43px;
        top: 0;
    }
    .history-list__item:nth-child(odd) .history-list__ttl::before{
        right: auto;
        left: 100%;
    }
}
@media (max-width: 767px){
    .history-list__item{
        width: calc(100% - 60px);
        margin-left: auto;
    }
    .history-list__item:not(:last-child){
        margin-bottom: 20px;
    }
    .history-list__item::before{
        top: 0;
        height: calc(100% + 25px);
    }
    .history-list__item:last-child::before{
        opacity: 1;
        height: 100%;
    }
     .profile-member-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 30px 20px;
    }

    .profile-member-header__info {
        margin-left: 0;
        margin-top: 20px;
    }

    .profile-member-header__detail {
        flex-direction: column;
        align-items: center;
    }

    .profile-member-header__label {
        margin-right: 0;
        margin-bottom: 5px;
    }

    .profile-member-body {
        padding: 30px 20px;
    }

    .timeline {
        padding-left: 20px;
    }

}