.linian_img {
    max-width: 100%;
    width: max-content;
    margin: 0 auto 20px;
}

.linian_list {
    display: flex;
}

.linian_item {
    width: calc(100% - 60px);
    height: fit-content;
    padding: 25px 20px 30px 20px;
    box-shadow: 0 10px 20px 0 rgb(0 107 147 / 52%);
    transition: .5s .5s cubic-bezier(.86, 0, .07, 1);
    border-bottom: solid 4px #006b93;
    background-color: #fff;
    box-sizing: border-box;
    margin-right: 20px;
}

.linian_item:nth-child(4n) {
    margin-right: 0;
}

.linian_item_line {
    width: 1px;
    height: 36px;
    background: #006b93;
}

.linian_item_title {
    font-size: 28px;
    line-height: 1.2;
    color: #006b93;
    padding: 15px 0 20px 0;
}

.linian_item_text {
    font-size: 18px;
    line-height: 1.33;
    color: #4a4a4a;
}

.yingpian_box {
    text-align: center;
}

.vide {
    margin: 0 auto;
    min-width: 50%;
    max-width: 100%;
    height: auto;
}

.weizhi_head {
    padding: 60px 30px;
}

.weizhi_head .line {
    height: 90px;
    width: 1px;
    background: #fff;
}

.weizhi_head .title {
    padding-top: 15px;
    font-size: 40px;
    text-align: left;
    color: #fff;
}

.weizhi_list {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.weizhi_list_text {
    background-color: #0a4f8c;
    padding: 20px;
}

.weizhi_item {
    width: 33.33%;
    /* flex: 1; */
    height: max-content;
    /* margin-right: 20px; */
}

.weizhi_item_img {
    height: 290px;
}

.weizhi_list_l {
    flex: 1;
}

.weizhi_list_r {
    flex: 2;
}

/* .weizhi_item:nth-child(3n) {

    margin-right: 0;

} */

.weizhi_item_text {
    padding: 40px;
    background-image: linear-gradient( 146deg, #0677b3, #0a4f8c), linear-gradient(to bottom, #0677b3, #0677b3);
    border-bottom: 4px solid #e4ebed;
    box-shadow: 0 10px 20px 0 rgb(0 0 0 / 20%);
    color: #fff;
}

.weizhi_item_title {
    font-size: 28px;
    margin-bottom: 20px;
    color: #fff;
}

.weizhi_item_text_con {
    font-size: 18px;
    line-height: 1.33;
    color: #fff;
}

.certifi_title {
    font-size: 20px;
    font-weight: bold;
    padding-bottom: 20px;
    text-align: left;
    text-transform: uppercase;
}

.certifi_img {
    width: 100%;
    height: 100%;
    min-height: 220px;
}

.certifi_item_title {
    font-size: 18px;
    color: #006b93;
    text-align: center;
    line-height: 1.7;
}

.certifi .contact_us {
    font-size: 20px;
    margin: 40px auto 0;
    width: 240px;
}

@media screen and (max-width:768px) {
    .linian_list {
        flex-wrap: wrap;
    }
    .linian_item {
        width: 100%;
        margin-right: 0;
    }
    .weizhi_head {
        padding: 0;
    }
    .weizhi_head .title {
        padding-top: 0;
        padding-bottom: 10px;
    }
    .weizhi_item {
        width: 100%;
    }
    .weizhi_list_l, .weizhi_list_r {
        width: 100%;
        flex: unset;
        margin-top: 10px;
    }
    .weizhi_item_title {
        margin-bottom: 0;
    }
    .certifi_img {
        min-height: unset;
    }
}