.main_one {
    padding: 0;
    background-color: #333E50;
}

.main_one_box {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.main_one_item {
    flex: 1;
    text-align: center;
    padding-bottom: 10px;
}

.main_one_item_img {
    margin: 5px auto;
    width: 50px;
    height: 50px;
}

.main_one_item_tit {
    color: #fff;
    font-size: 18px;
    font-weight: bold;
}

.main_one_item_p {
    font-size: 14px;
    color: #999;
}

#certify {
    margin-top: 30px;
    position: relative;
    overflow: hidden;
}

#certify .swiper-container {
    padding-bottom: 60px;
}

#certify .swiper-slide {
    /* width: 520px;
    height: 408px; */
    width: 320px;
    height: 180px;
    background: #fff;
    box-shadow: 0 5px 8px #ddd;
    position: relative;
}

#certify .swiper-slide img {
    display: block;
}

#certify .swiper-slide p {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    color: #fff;
    font-size: 18px;
    text-transform: uppercase;
    background-color: rgba(0, 0, 0, .6);
    display: flex;
    justify-content: center;
    align-items: center;
}

#certify .swiper-slide:hover p {
    opacity: 1;
}

#certify .swiper-pagination {
    width: 100%;
    bottom: 20px;
}

#certify .swiper-pagination-bullets .swiper-pagination-bullet {
    margin: 0 5px;
    border: 3px solid #fff;
    background-color: #d5d5d5;
    width: 10px;
    height: 10px;
    opacity: 1;
}

#certify .swiper-pagination-bullets .swiper-pagination-bullet-active {
    border: 3px solid #00aadc;
    background-color: #fff;
}

.main_five_list {
    display: flex;
    margin-top: 30px;
}

.main_five_list .main_three_item {
    width: calc(25% - 20px);
    margin-right: 20px;
}

.main_five_list .main_three_item:nth-child(3n) {
    margin-right: 20px;
}

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

.main_six_box {
    display: flex;
}

.main_six_l, .main_six_r {
    width: calc(50% - 20px);
}

.main_six_r {
    margin-left: 40px;
}

.main_six_titlt {
    margin-top: 30px;
    font-size: 24px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
}

.main_six_titlt .line {
    margin-left: 30px;
    width: 70px;
    height: 3px;
    background-color: #00aadc;
}

.main_six_text {
    margin: 20px 0;
    font-size: 14px;
    color: #999;
    line-height: 2;
}

.main_more {
    display: inline-block;
    padding: 10px 25px;
    letter-spacing: 2px;
    border: 1px solid #00aadc;
    border-radius: 5px;
}

.main_more:hover {
    background-color: #00aadc;
    color: #fff;
}

.main_three_item_img {
    width: 60px;
    height: 60px;
    margin: 0 auto;
}

.main_five_item_img {
    width: 100%;
    height: 190px;
    margin: 0 auto;
}

.main_three_item_img img {
    width: 100%;
    height: 100%;
}

.main_four {
    background-color: #333E50;
}

@media screen and (max-width:768px) {
    .main_one_box {
        padding-top: 10px;
    }
    .main_five_list {
        flex-wrap: wrap;
    }
    .main_five_list .main_three_item {
        width: calc(50% - 10px);
    }
    .main_five_list .main_three_item:nth-child(2n) {
        margin-right: 0;
    }
    .main_five_item_img {
        height: 125px;
    }
    .main_six_box {
        flex-wrap: wrap;
    }
    .main_six_l, .main_six_r {
        width: 100%;
    }
    .main_six_r {
        margin-left: 0;
    }
}