.about_title {
    font-family: 'Noto Serif TC', serif;
    font-size: 42px;
    display: flex;
    justify-content: center;
    font-weight: bold;
    margin-top: 49px;
    padding-bottom: 20px;
}

.about_title img {
    height: 42px;
}

.about_title_splite {
    font-family: 'Noto Serif TC', serif;
    font-size: 29px;
}

.about_eng_title {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 25px;
}

.about_eng_title img {
    height: 24px;
    padding-left: 22px;
    padding-right: 22px;
}

.about_eng_title hr {
    border-top: 0.5px solid #A2A2A6;
    width: 100%;
}

.about_gray_box {
    display: flex;
    justify-content: space-between;
    background-color: #EEEEEF;
    margin-top: 38px;
}

.about_gray_box_content {
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
}

.about_gray_box img {
    height: 107px;
}

.about_gray_box_title {
    font-family: 'Noto Sans TC', sans;
    font-size: 17px;
    font-weight: 500;
    margin-bottom: 12px;

}

.about_gray_box_subtitle {
    font-family: 'Noto Sans TC', sans;
    font-size: 12px;
    font-weight: 500;
}

.about_para {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 49px;
    margin-bottom: 31px;
}


.about_para hr {
    border-top: 0.5px solid #A2A2A6;
    width: 100%;
}

.about_para_title {
    font-family: 'Noto Serif TC', serif;
    font-size: 28px;
    font-weight: bold;
    color: #09327D;
    letter-spacing: 3px;
}

.about_para_subtitle {
    font-family: 'Noto Sans TC', sans;
    font-size: 15px;
    color: black
}

.about_para_text {
    width: 100%;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    gap: 14px;

}

.about_para_content {
    margin-top: 40px;
}

.about_para_content p {
    font-family: 'Noto Sans TC', sans;
    font-size: 14px;
    text-indent: 28px;
    line-height: 19px;
    font-weight: 400;
    text-align: justify;
}

.about_content {
    margin-left: 57px;
    margin-right: 57px;
}

img {
    image-rendering: -moz-crisp-edges;
    /* Firefox */
    image-rendering: -o-crisp-edges;
    /* Opera */
    image-rendering: -webkit-optimize-contrast;
    /* Webkit (non-standard naming) */
    image-rendering: crisp-edges;
    -ms-interpolation-mode: nearest-neighbor;
    /* IE (non-standard property) */
}

.timeline {
    width: 100%;
    margin-top: 74px;
    position: relative;
}

.timelinegp {
    position: absolute;
    z-index: 1;
    top: 10px
}

.timeline_title {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    z-index: 2;
    gap: 14px;

}


.timeline_content {
    font-family: 'Noto Sans TC', sans;
    font-size: 14px;
    text-indent: 28px;
    line-height: 19px;
    font-weight: 400;
    text-align: justify;
    margin-top: 15px;
}

.timeline_itemlist {
    display: flex;
    justify-content: space-between;
    width: 524px;
    margin-bottom: 60px;

}

.timeline_item {
    width: 140px;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
}

.timeline_item img {
    height: 81px;
}

.timeline_item_title {
    font-family: 'Noto Sans TC', sans;
    text-align: center;
    font-weight: bold;
    font-size: 14px;
    height: 40px;
    line-height: 16px;
    margin-top: 10px;
}

.timeline_item_content {
    font-family: 'Noto Sans TC', sans;
    text-align: center;
    font-size: 10px;
    line-height: 12px;
}

.timeline_itemlist_block {
    margin-top: 55px;
}

.mobile_itemlist_block {
    display: none;
}

.youtube-video {
    aspect-ratio: 16 / 9;
    width: 100%;
}

.mobile_timeline_content {
    display: none;
}

@media (max-width: 700px) {
    .timeline {
        width: 100%;
        margin: auto;
    }

    .timeline_content {
        display: none;
    }

    .mobile_timeline_content {
        display: block;
        font-size: 12px;
        margin-top: 5px;
        text-align: center;
    }

    .timeline_title {
        gap: 5px;
    }

    .timeline_itemlist_block {
        width: 380px;
        margin-top: 30px;
        display: none;
    }

    .timelinegp {
        display: none;
    }

    .mobile_itemlist_block {
        display: flex;
        width: 100%;
        justify-content: center;
        margin-top: 20px;
    }

    .mobile_itemlist_block img {
        width: 100%;
    }

    .timeline_itemlist {
        width: 100%;
    }

    .timeline_item {
        width: 33%;
    }

    .timeline_item_title {
        font-size: 10px;
        height: 24px;
        line-height: 12px;
        margin-top: 5px;
    }

    .timeline_item_content {
        font-size: 8px;
        line-height: 12px;
    }

    .timeline_itemlist {
        margin-bottom: 30px;
    }

    .timelinegp {
        top: 1px;
        max-width: 380px;
    }

    .timeline_item img {
        height: 60px;
    }
}

@media (max-width: 450px) {
    .about_content {
        margin-left: 10px;
        margin-right: 10px;
    }

    .about_title {
        font-size: 30px;
        padding-bottom: 0px;
    }

    .about_title {
        height: 18px;
    }

    .about_title img {
        height: 30px;
    }

    .about_eng_title img {
        height: 18px;
    }

    .about_title_splite {
        font-size: 20px;
    }

    .about_gray_box img {
        height: 0px;
    }

    .about_gray_box_title {
        font-size: 13px;
    }

    .about_gray_box_subtitle {
        font-size: 10px;
    }

    .about_para_text {
        gap: 0px;
    }

    .about_para hr {
        width: 40%;
    }

    .about_para_title {
        font-size: 15px;
    }

    .about_para_subtitle {
        font-size: 12px;
    }

    .about_para_content p {
        font-size: 12px;
    }




}