.main {
    width: 100%;
    height: auto;
    overflow: hidden;
    /* background-color: #EAEAEA; */
    position: relative;
    zoom: 1;
}
.about_main_cover {
    width: 100%;
}
.about_main_cover_image {
    height: auto;
    display: block;
    width: 100% !important;
    object-fit: cover;
}
.about_kans {
    margin: 48px 0;
}
.about_kans_title, .about_kans_content {
    text-align: center;
    font-size: 16px;
}
.about_kans_title {
    color: #414245;
}
.about_kans_content {
    color: #979797;
    margin-bottom: 48px;
}
.about_kans_content_item {
    color: #979797;
    width: 500px;
    margin: 24px auto;
    font-weight: 300;
}
.about_kans_history {
    margin: 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 560px;
    overflow-y: hidden;
}
.about_kans_history_image_wrapper {
    overflow: hidden;
    width: 100%;
}
.about_kans_history_time_point_wrapper {
    font-size: 11px;
    color: #979797;
    width: 300px;
}
.about_kans_history_time_point_item_wrapper {
    margin-bottom: 24px;
    display: flex;
    align-items: center;
}
.about_kans_history_time_point_item_wrapper:hover {
    font-size: 16px;
}
.about_kans_history_time_point_item_wrapper:hover .about_kans_history_time_point_before {
    visibility: visible;
}
.about_kans_history_time_point_item_wrapper:hover .about_kans_history_time_point {
    color: #BF0017;
}
.about_kans_history_time_point_before {
    visibility: hidden;
    margin-right: 24px;
    color: #BF0017;
    font-size: 30px;
}
.scientific_research_team {
    margin: 48px 0;
}
.scientific_research_team_title {
    text-align: center;
    font-size: 16px;
}
.wiper_buttons {
    float: right;
    overflow: hidden;
    margin: 48px 0;
}
.wiper_button_prev, .wiper_button_next {
    float: left;
    width: 30px;
    height: 30px;
    margin: 5px;
    cursor: pointer;
    border: 1px solid #979797;
    border-radius: 50%;
}
.wiper_button_prev:hover, .wiper_button_next:hover {
    opacity: 0.5;
}
.scientific_research_team_wiper {
    width: 80%;
}
.scientific_research_team_content {
    margin: 48px;
}
.scientific_research_team_item {
    padding: 20px;
    margin: 0 24px !important;
    width: 192px !important;
    height: 318px !important;
    text-align: center;
    cursor: pointer;
}
.scientific_research_team_item:hover {
    background-color: #ffffff;
    box-shadow: 0 0 5px rgba(0, 0, 0, .25);
    transition: all .2s ease-in-out;
}
.scientific_research_team_item_avatar {
    width: 128px;
    height: 128px;
    border-radius: 50%;
    margin-bottom: 24px;
}
.scientific_research_team_item_name {
    font-size: 14px;
}
.scientific_research_team_item_title {
    font-size: 11px;
    margin-bottom: 24px;
    line-height: 1.5;margin-top: 5px;
}
.scientific_research_team_item:hover .scientific_research_team_item_desc{
    display: block;
}
.scientific_research_team_item_desc {
    font-size: 10px;
    text-align: left;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.5;
    height: 90px;
    overflow: hidden;
    display: none;
}

.research_center_item {
    display: flex;
}
.research_center_item_detail, .research_center_item_image {
    width: 50%;
}
.research_center_item_detail {
    /* padding: 60px; */
}
.research_center_item_detail_name {
    font-size: 16px;
    margin-bottom: 18px;
    margin-top: 100px;
    margin-left: 100px;
}
.research_center_item_detail_adress {
    font-size: 13px;
    margin-bottom: 24px;
    margin-left: 100px;
}
.research_center_item_detail_desc {
    font-size: 13px;
    color: #979797;
    width: 36%;
    line-height: 1.5;
    margin-left: 100px;
}
.swiper-pagination-bullet-active {
    background-color: #ffffff !important;
}
.swiper-pagination-bullet {
    border-radius: 0;
    width: 40px !important;
    height: 3px !important;
}

@media (min-width: 768px) {
    .about_kans_history_image_wrapper {
        display: none;
    }
    .research_center_item_phone {
        display: none;
    }
}
@media (max-width: 767px) {
    .about_main_cover {
        margin-top: 60px;
    }
    .about_kans_content {
        padding: 0 24px;
    }
    .about_kans_content_item {
        width: auto;
    }
    .about_kans_history {
        margin: 0;
        display: block;
        height: auto;
    }
    .about_kans_history_image_wrapper1 {
        display: none;
    }
    .scientific_research_team_content {
        margin: 0;
    }
    .scientific_research_team_item {
        width: 45% !important;
        padding: 0;
        margin: 0 10px !important;
    }
    .scientific_research_team_wiper {
        width: 100%;
    }
    .wiper_buttons {
        margin: 24px;
    }
    .scientific_research_team_item_avatar {
        margin: 12px 0;
    }
    .scientific_research_team_item_avatar {
        width: 100px;
        height: 100px;
    }
    .scientific_research_team_item_desc {
        display: block;
        margin: 0 12px;
    }
    .research_center_item {
        display: none;
    }
    .research_center_item_detail_phobe {
        padding: 24px;
        text-align: center;
    }
    .research_center_item_detail_phone_name {
        font-size: 16px;
        margin-bottom: 18px;
    }
    .research_center_item_detail_phone_adress {
        font-size: 13px;
        margin-bottom: 24px;
    }
    .research_center_item_detail_phone_desc {
        font-size: 13px;
        color: #979797;
        line-height: 1.5;
    }
    .research_center_item_image_phone {
        width: 100%;
        height: auto;
    }
}