/*section4*/

.section4_bg{
    padding-bottom: 60px;
}
.section4_swiper {
    position: relative;
}
.section4_swiper .section4_swiper_slide {
    width: 100%;
    height: 300px;
    background: #1563A0;
}
.section4_swiper .section4_swiper_slide .slide_img_box {
    position: relative;
    height: 250px;
}
.section4_swiper .section4_swiper_slide img{
    display: block;
    height: 100%;
    width: 100%;
}
.section4_swiper .section4_swiper_slide .video_reply_button {
    cursor: pointer;
    position: absolute;
    left: 50%;
    top: 50%;
    width: 68px;
    height: 68px;
    background: url(../images/video/replay_btn.png) no-repeat;
    background-size: 100% 100%;
    transform: translate(-50%, -50%);
}
.section4_swiper .section4_swiper_slide .video_reply_button:hover{
    background: url(../images/video/hover_replay_btn.png) no-repeat;
}
.section4_swiper .section4_swiper_slide p {
    height: 50px;
    line-height: 50px;
    padding: 0 20px;
    color: #fff;
    font-weight: 700;
}
.section4_tip{
    text-align: center;
    font-size: 14px;
}
.section4_tip span{
    color:#3DB8FF;
}
.section4_swiper .videoSwiper  {
    overflow: hidden;
    position: relative;
    padding-bottom: 40px;
}
.section4_swiper .swiper-pagination-bullet {
    width: 30px;
    height: 4px;
    margin: 0 2px;
    border-radius: inherit !important;
}
.section4_swiper .swiper-pagination {
    left: 50%;
    transform: translateX(-50%);
}
.section4_swiper .swiper-button-prev,.section4_swiper .swiper-container-rtl .swiper-button-next,
.section4_swiper .swiper-button-next, .section4_swiper .swiper-container-rtl .swiper-button-prev {
    width: 48px;
    height: 48px;
    background-size: 48px 48px;
    background-image: url(../images/arrow1.png);
}
.section4_swiper .swiper-button-prev,.section4_swiper .swiper-container-rtl .swiper-button-next {
    left: -60px;
}
.section4_swiper .swiper-button-next, .section4_swiper .swiper-container-rtl .swiper-button-prev {
    right: -60px;
    transform: rotate(180deg);
}
.section4_swiper .swiper-button-prev:hover,.section4_swiper .swiper-container-rtl .swiper-button-next:hover{
    transform: rotate(180deg);
    background-image: url(../images/arrow2.png);
}
.section4_swiper .swiper-button-next:hover, .section4_swiper .swiper-container-rtl .swiper-button-prev:hover {
    transform: rotate(0);
    background-image: url(../images/arrow2.png);
}
@media (max-width: 1280px) {
    .section4_swiper .swiper-button-prev,.section4_swiper .swiper-container-rtl .swiper-button-next {
        left: -20px;
    }
    .section4_swiper .swiper-button-next, .section4_swiper .swiper-container-rtl .swiper-button-prev {
        right: -20px;
    }
}
/*section4*/
@media screen and (max-width: 750px) {
    .section4_bg {
        height: auto;
        background-size: 100% 100%;
    }
    .section4_tip {
        text-align: center;
        font-size: 0.2rem;
        margin: 0 -1.2rem;
    }
    .section4_swiper .videoSwiper {
        padding-bottom: .4rem;
    }
    .section4_swiper .swiper-pagination-bullet {
        width: .3rem;
        height: .04rem;
    }
}