.index_Swiper {
    width: 100%;
    height: 100vh;
    overflow-x: hidden;
}

.index_Swiper .w12 {
    position: relative;
    height: 100%;
}

.index_Swiper .banner_infor_tu {
    position: absolute;
    width: 700px;
    height: 700px;
    top: 50%;
    right: -80px;
    transform: translate(0, -50%);
    z-index: 9;
}

.index_Swiper .banner_infor {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translate(0, -50%);
    z-index: 9;
}

.banner_infor .heng {
    position: absolute;
    top: 105px;
    /* left: 320px; */
    left: 100px;
    width: 0;
    transition: all .6s;
    overflow: hidden;
}

.banner_infor .heng img {
    width: 148px;
    height: 11px;
}

.banner_infor .heng.w148 {
    width: 148px !important;
}

.banner_infor .banner_txt {
    width: 580px;
}

.banner_infor p {
    font-size: 18px;
    color: #2A2E2E;
    line-height: 24px;
    margin-top: 42px;
}

.banner_infor .btn {
    display: block;
    width: 132px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 4px;
    color: #fff;
    background: #1F70F0;
    font-size: 14px;
    margin-top: 42px;
    transition: all .3s;
}


.banner_infor .btn:hover {
    opacity: .8;
}

.index_Swiper .swiper-slide {
    width: 100%;
    height: 100%;
}

.index_Swiper .swiper-slide.item1 {
    background: linear-gradient(135deg, #F2F3F6 0%, #F7F7F9 51%, #EAECF0 100%);
}

.index_Swiper .swiper-slide.item1::before {
    position: absolute;
    left: -320px;
    bottom: -100px;
    content: '';
    width: 872px;
    height: 872px;
    background: linear-gradient(180deg, #2878FF 0%, #28F2FF 100%);
    filter: blur(50px);
    border-radius: 50%;
    opacity: .35;
    /* transform-origin: center; */
    transform-origin: 65% 50%;
    -webkit-animation-name: quan_l;
    animation-name: quan_l;
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
    -webkit-animation-timing-function: linear;
    animation-timing-function: linear;
    -webkit-animation-duration: 6s;
    animation-duration: 6s;
    animation-delay: 0s;
    transition: opacity 1s ease-in-out;
    z-index: 0;
    opacity: .35;
}

.index_Swiper .swiper-slide.item1::after {
    position: absolute;
    right: -100px;
    bottom: -100px;
    content: '';
    width: 545px;
    height: 545px;
    background: linear-gradient(180deg, #FEFF28 0%, #FF2828 100%);
    filter: blur(50px);
    border-radius: 50%;
    opacity: .35;
    transform-origin: 25% 50%;
    -webkit-animation-name: quan_r;
    animation-name: quan_r;
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
    -webkit-animation-timing-function: linear;
    animation-timing-function: linear;
    -webkit-animation-duration: 10s;
    animation-duration: 10s;
    z-index: 1;
    opacity: .35;
    animation-delay: 0s;
    transition: opacity 1s ease-in-out;
}

/* .index_Swiper .banner_frist::before {
    position: absolute;
    left: -320px;
    top: 0px;
    content: '';
    width: 1181px;
    height: 1100px;
    background: url(../imgs/banner_frist_left.png) no-repeat center;
    background-size: cover;
    transform-origin: center;
    -webkit-animation-name: quan_l;
    animation-name: quan_l;
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
    -webkit-animation-timing-function: linear;
    animation-timing-function: linear;
    -webkit-animation-duration: 10s;
    animation-duration: 10s;
    z-index: 0;
    opacity: .35;
} */

/* .index_Swiper .banner_frist::after {
    position: absolute;
    right: -320px;
    top: 280px;
    content: '';
    width: 1181px;
    height: 1100px;
    background: url(../imgs/banner_frist_right.png) no-repeat center;
    background-size: cover;
    transform-origin: center;
    -webkit-animation-name: quan_r;
    animation-name: quan_r;
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
    -webkit-animation-timing-function: linear;
    animation-timing-function: linear;
    -webkit-animation-duration: 10s;
    animation-duration: 10s;
    z-index: 1;
    opacity: .35;
} */

.index_Swiper .caozuo {
    position: relative;
    width: 1200px;
    margin: 0 auto;
}

.index_Swiper .next {
    position: absolute;
    right: 0 !important;
    top: auto !important;
    bottom: 48px !important;
    width: 64px;
    height: 64px;
    background: url(../imgs/index_r_icon.png) no-repeat center;
    background-size: cover;
    transition: all .3s;
    cursor: pointer;
    opacity: 1;
}

.index_Swiper .next:hover {
    background: url(../imgs/index_r_icon2.png) no-repeat center;
    background-size: cover;
}

.index_Swiper .prev {
    position: absolute;
    left: auto !important;
    right: 84px !important;
    top: auto !important;
    bottom: 48px !important;
    width: 64px;
    height: 64px;
    background: url(../imgs/index_l_icon.png) no-repeat center;
    background-size: cover;
    transition: all .3s;
    cursor: pointer;
    opacity: 1;
}

.index_Swiper .prev:hover {
    background: url(../imgs/index_l_icon2.png) no-repeat center;
    background-size: cover;
}

.banner_nav {
    position: absolute;
    bottom: -60px;
    left: 0;
    right: 0;
    margin: auto;
    z-index: 1;
}

.banner_nav .item {
    float: left;
    width: 282px;
    height: 120px;
    background: #FFFFFF;
    box-shadow: 0px 12px 36px -16px rgba(1, 18, 35, 0.1);
    border-radius: 4px;
    padding: 28px 24px 0;
    margin-right: 24px;
    transition: all ease-in-out 0.3s;
}

.banner_nav .item:last-child {
    margin-right: 0;
}

.banner_nav .item h3 {
    font-size: 18px;
    font-weight: 600;
    color: #2A2E2E;
    line-height: 18px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: all .3s;
}

.banner_nav .item p {
    font-size: 14px;
    color: #919797;
    line-height: 22px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-top: 10px;
    transition: all ease-in-out 0.3s;
}

.banner_nav .item:hover {
    transform: translateY(-8px) !important;
}

.banner_nav .item:hover h3,
.banner_nav .item:hover p {
    color: #1F70F0;
}

.sec_jjfa {
    position: relative;
    width: 100%;
    padding-bottom: 85px;
    /* background: linear-gradient(180deg, #FFFFFF 0%, #EFF7FF 100%); */
    background: #fff;
    overflow: hidden;
}

.sec_jjfa .w12 {
    position: relative;
    z-index: 2;
}

.sec_jjfa::after {
    position: absolute;
    right: 0;
    top: 130px;
    content: '';
    width: 361px;
    height: 325px;
    background: url(../imgs/sec_jjfa1.png) no-repeat center;
    background-size: cover;
    transform-origin: center;
    -webkit-animation-name: up-and-down-o;
    animation-name: up-and-down-o;
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
    -webkit-animation-timing-function: linear;
    animation-timing-function: linear;
    -webkit-animation-duration: 7s;
    animation-duration: 7s;
    z-index: 1;
}

.sec_jjfa::before {
    position: absolute;
    left: 0;
    bottom: 70px;
    content: '';
    width: 295px;
    height: 297px;
    background: url(../imgs/sec_jjfa2.png) no-repeat center;
    background-size: cover;
    transform-origin: center;
    -webkit-animation-name: up-and-down-o;
    animation-name: up-and-down-o;
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
    -webkit-animation-timing-function: linear;
    animation-timing-function: linear;
    -webkit-animation-duration: 7s;
    animation-duration: 7s;
    z-index: 1;
}

/* 瑙ｅ喅鏂规start */
.jjfa_swiper {
    position: relative;
    width: 100%;
}

.jjfa_swiper a {
    position: relative;
    float: left;
    width: 390px !important;
    height: 240px;
    /* margin: 0 0 15px 0; */
    border-radius: 4px;
    overflow: hidden;
    width: 390px;
    height: 240px;
    padding: 46px 38px 0 38px;
}



.jjfa_swiper .item1 {
    width: 795px !important;
    background: url(../imgs/jjfa_bg1.png) no-repeat center;
    background-size: cover;
}

.jjfa_swiper .item2 {
    width: 795px !important;
    background: url(../imgs/jjfa_bg2.png) no-repeat center;
    background-size: cover;
}

.jjfa_swiper .item3 {
    background: url(../imgs/jjfa_bg3.png) no-repeat center;
    background-size: cover;
}

.jjfa_swiper .item4 {
    background: url(../imgs/jjfa_bg4.png) no-repeat center;
    background-size: cover;
}

.jjfa_swiper .item5 {
    background: url(../imgs/jjfa_bg5.png) no-repeat center;
    background-size: cover;
}

.jjfa_swiper .item6 {
    background: url(../imgs/jjfa_bg6.png) no-repeat center;
    background-size: cover;
}

.jjfa_swiper .item7 {
    background: url(../imgs/jjfa_bg7.png) no-repeat center;
    background-size: cover;

}

.jjfa_swiper .item8 {
    background: url(../imgs/jjfa_bg8.png) no-repeat center;
    background-size: cover;

}

.jjfa_swiper .item9 {
    background: url(../imgs/jjfa_bg9.png) no-repeat center;
    background-size: cover;
}

.jjfa_swiper .last {
    margin-top: 15px;
}

.jjfa_swiper a {
    background-color: transparent;
    transition: background-color 0.8s ease-in-out; /* 鍙鑳屾櫙鑹插仛鍔ㄧ敾 */
}

.jjfa_swiper a h2 {
    font-size: 24px;
    font-weight: 600;
    color: #333333;
    line-height: 33px;
    transition: all .2s;
}

.jjfa_swiper a p {
    width: 170px;
    line-height: 24px;
    margin-top: 6px;
    transition: all .2s;
}

.jjfa_swiper .item1 p,
.jjfa_swiper .item2 p {
    width: 422px !important;
}


.jjfa_swiper a .btn {
    position: absolute;
    left: 38px;
    bottom: 46px;
    display: block;
    width: 26px;
    height: 26px;
    background: url(../imgs/jjfa_more1.png) no-repeat center;
    background-size: cover;
    transition: all .5s;
}

/* .jjfa_swiper a.on {
    transition: all ease-in-out .8s;
    background: #1F70F0;
}

.jjfa_swiper a.on h2 {
    color: #fff;
}

.jjfa_swiper a.on p {
    color: rgba(255, 255, 255, .57);
}

.jjfa_swiper a.on .btn {
    background: url(../imgs/jjfa_more2.png) no-repeat center;
    background-size: cover;
} */
.jjfa_swiper a:hover {
    background: #1F70F0;
}

.jjfa_swiper a:hover h2 {
    color: #fff;
}

.jjfa_swiper a:hover p {
    color: rgba(255, 255, 255, .57);
}

.jjfa_swiper a:hover .btn {
    background: url(../imgs/jjfa_more2.png) no-repeat center;
    background-size: cover;
}







.jjfa_swiper .swiper-pagination-progressbar {
    width: 180px;
    height: 5px;
    background: rgba(31, 112, 240, .2);
    border-radius: 3px;
    left: 0;
    top: auto;
    right: 0;
    bottom: -35px;
    margin: auto;
}

.jjfa_swiper .swiper-pagination-progressbar-fill {
    background: #1F70F0;
    position: absolute;
    left: 0;
    top: auto;
    right: 0;
    bottom: 0;
    margin: auto;
    width: 100%;
    height: 100%;
    -webkit-transform: scale(0);
    -ms-transform: scale(0);
    transform: scale(0);
    -webkit-transform-origin: left top;
    -ms-transform-origin: left top;
    transform-origin: left top;
    border-radius: 3px;
}


/* 瑙ｅ喅鏂规end */





.sec_fwjl {
    width: 100%;
    height: 480px;
    background: url(../imgs/fwjl_bg.jpg) no-repeat center #1F70F0;
    background-size: auto 480px;
}

.sec_fwjl ul {
    margin-top: 20px;
    display: flex;
    display: -webkit-flex;
    justify-content: space-between;
}


.sec_fwjl li span b {
    font-family: DINProM;
    font-size: 60px;
    color: #fff;
    line-height: 70px;
}

.sec_fwjl li span em {
    font-size: 20px;
    color: #fff;
    line-height: 45px;
    font-weight: 500;
    margin-left: 10px;
}

.sec_fwjl li p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 28px;
    margin-top: 10px;
}

.sec_choose {
    width: 100%;
    background: #fff;
    padding-bottom: 76px;
}

.sec_choose li {
    float: left;
    width: 282px;
    height: 208px;
    background: #FFFFFF;
    border-radius: 4px;
    transition: all .3s;
    padding: 10px 0 0 0;
    margin: 0 24px 24px 0;
    transition: all .3s;
    text-align: center;
}


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

.sec_choose li:hover {
    transform: translateY(-8px);
    background: #FFFFFF;
    box-shadow: 0px 12px 36px -16px rgba(1, 18, 35, 0.1);
}



.sec_choose li h2 {
    font-size: 18px;
    color: #3A426B;
    line-height: 20px;
    margin-top: 20px;
}

.sec_choose li i {
    display: block;
    margin: 0 auto;
    width: 120px;
    height: 120px;
    -webkit-animation: icons_anim_end 0.6s steps(24) both;
    animation: icons_anim_end 0.6s steps(24) both;
    background-size: cover;
    background-position: 0 0;
    background-repeat: no-repeat;
}


.sec_choose li:hover i {
    -webkit-animation: icons_anim_start 0.6s steps(24) both;
    animation: icons_anim_start 0.6s steps(24) both;
}

.sec_choose li i.icon1 {
    background-image: url(../imgs/why1.png);
}

.sec_choose li i.icon2 {
    background-image: url(../imgs/why2.png);
}

.sec_choose li i.icon3 {
    background-image: url(../imgs/why3.png);
}

.sec_choose li i.icon4 {
    background-image: url(../imgs/why4.png);
}

.sec_choose li i.icon5 {
    background-image: url(../imgs/why5.png);
}

.sec_choose li i.icon6 {
    background-image: url(../imgs/why6.png);
}

.sec_choose li i.icon7 {
    background-image: url(../imgs/why7.png);
}

.sec_choose li i.icon8 {
    background-image: url(../imgs/why8.png);
}

@-webkit-keyframes icons_anim_start {
    0% {
        background-position-y: 0;
    }

    100% {
        background-position-y: -2880px;
    }
}

@keyframes icons_anim_start {
    0% {
        background-position-y: 0;
    }

    100% {
        background-position-y: -2880px;
    }
}

@-webkit-keyframes icons_anim_end {
    0% {
        background-position-y: -2880px;
    }

    100% {
        background-position-y: 0;
    }
}

@keyframes icons_anim_end {
    0% {
        background-position-y: -2880px;
    }

    100% {
        background-position-y: 0;
    }
}

.sec_video {
    width: 100%;
    height: 600px;
    background: url(../imgs/video_bg.jpg) no-repeat center #396ed8;
    background-size: auto 600px;

}

.sec_video .video_post {
    padding-top: 180px;
}

.sec_video.sj {
    display: none;
}

.sec_video.sj .video_box {
    display: none;
}

.sec_video.sj .video_box video {
    width: 100%;
    height: 600px;
}

#myVedio {
    -o-object-fit: cover;
    object-fit: cover;
}

.sec_video h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 500;
    color: #FFFFFF;
    line-height: 32px;
}

.sec_video .playTap {
    display: block;
    width: 90px;
    height: 90px;
    margin: 56px auto 0;
    animation: scalemove 1s linear infinite alternate;
    transition: all .2s linear;
    cursor: pointer;
}

.myvideo {
    width: 100%;
    height: 100%;
}

.sec_hezuo {
    width: 100%;
    height: 360px;
    background: url(../imgs/hzgy_bg.jpg) no-repeat center #297dfa;
    background-size: auto 360px;
}

.sec_hezuo .common_tit {
    padding-top: 84px;
}

.sec_hezuo .btn {
    display: block;
    width: 132px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0px 4px 16px 0px rgba(0, 127, 255, 0.4);
    border-radius: 4px;
    border: 1px solid #FFFFFF;
    line-height: 38px;
    text-align: center;
    color: #fff;
    font-size: 14px;
    margin: 48px auto 0;
    transition: all .3s;
}

.sec_hezuo .btn i {
    color: #fff;
}

.sec_hezuo .btn:hover {
    background: #fff;
    color: #1F70F0;
}

.sec_hezuo .btn:hover i {
    color: #1F70F0;
}

.sec_hb {
    padding-bottom: 100px;
}

.sec_hb .hz_swiper {
    width: 100%;
}



.hz_swiper .swiper-slide {
    width: 1616px;
    height: 260px;
}

.hz_swiper .swiper-slide img {
    width: 100%;
    height: 100%;
}

.hz_swiper .swiper-wrapper {
    -webkit-transition-timing-function: linear !important;
    -moz-transition-timing-function: linear !important;
    -ms-transition-timing-function: linear !important;
    -o-transition-timing-function: linear !important;
    transition-timing-function: linear !important;
}

.hzhb_left {
    position: absolute;
    top: 0;
    left: 0;
    width: 120px;
    height: 260px;
    background: url(../imgs/hzhb_l.png) no-repeat center;
    background-size: cover;
    z-index: 1;
}

.hzhb_right {
    position: absolute;
    top: 0;
    right: 0;
    width: 120px;
    height: 260px;
    background: url(../imgs/hzhb_r.png) no-repeat center;
    background-size: cover;
    z-index: 1;
}

.sec_zeren {
    width: 100%;
    height: 738px;
    background: rgba(31, 112, 240, 0.05);
}

.zeren_box {
    position: relative;
}

.zeren_box .nav .item {
    display: block;
    font-size: 16px;
    color: #5F6464;
    line-height: 22px;
    margin-bottom: 16px;
    transition: all .3s;
}

.zeren_box .nav .item:hover {
    color: #1881FF;
}

.zeren_box .nav .item.on {
    color: #1881FF;
    font-weight: 600;
}

.news_Swiper {
    display: none;
    width: 1340px;
}

.news_item {
    width: 450px;
    margin-right: 80px;
    border-radius: 4px;
    overflow: hidden;
}

@media screen and (max-width:1700px) {
    .news_Swiper {
        width: 1200px;
    }

    .news_item {
        margin-right: 60px;
    }
}

@media screen and (max-width:1500px) {
    .news_Swiper {
        width: 1100px;
    }

    .news_item {
        margin-right: 40px;
    }
}

@media screen and (max-width:1300px) {
    .news_Swiper {
        width: 1000px;
    }

    .news_item {
        margin-right: 20px;
    }
}

.news_item:last-child {
    margin-right: 0;
}

.news_item .tu {
    width: 100%;
    height: 240px;
    border-radius: 4px;
    overflow: hidden;
}

.news_item img {
    width: 100%;
}

.news_item .time {
    font-size: 14px;
    color: #919797;
    line-height: 20px;
    margin: 20px 0 12px 0;
}

.news_item .txt {
    height: 60px;
    font-size: 20px;
    font-weight: 500;
    color: #2A2E2E;
    line-height: 30px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-bottom: 24px;
}

.news_item .btn {
    font-size: 14px;
    color: #1F70F0;
    line-height: 20px;

}

.news_item .btn:hover {
    text-decoration: underline;
}

.news_item:hover .txt {
    color: #1F70F0;
}

.zeren_box .swiper-button-next {
    position: absolute;
    left: 56px;
    top: 450px;
    width: 36px;
    height: 36px;
    background: url(../imgs/r_icon.png) no-repeat center;
    background-size: cover;
    transition: all .3s;
    cursor: pointer;
    opacity: 1;
}

.zeren_box .swiper-button-next:hover {
    background: url(../imgs/r_icon2.png) no-repeat center;
    background-size: cover;
}

.zeren_box .swiper-button-prev {
    position: absolute;
    left: 0;
    top: 450px;
    width: 36px;
    height: 36px;
    background: url(../imgs/l_icon.png) no-repeat center;
    background-size: cover;
    transition: all .3s;
    cursor: pointer;
    opacity: 1;
}

.zeren_box .swiper-button-prev:hover {
    background: url(../imgs/l_icon2.png) no-repeat center;
    background-size: cover;
}

/* 鎵嬫満绔ご */
.sj_banner {
    display: none;
    width: 100%;
    height: 692px;
}

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

/* @media screen and (max-width:768px) {
    .parallux {
        height: 800px;
    }
    .index_Swiper{
        height: 800px;
    }
    .sj_banner {
        display: block;
    }

    .sj_banner .swiper-slide {
        width: 100%;
    }
} */
.banner_video_mask {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    /* background: #000;
    opacity: 0.4; */
    z-index: 2;
}

.banner_video {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    -o-object-fit: cover;
    object-fit: cover;
    z-index: 1;
}

.header.act .nav_item .tit {
    color: #fff;
}

.header.act .nav_item .tit.on {
    color: #1F70F0;
}

.header.act .nav_item .tit i {
    color: #fff;
}

.header.act .nav_item:hover .tit {
    color: #1F70F0;
}

.header.on .nav_item:hover .tit i {
    color: #1F70F0;
}

.banner_infor p.fff {
    color: #fff;
}




.header.on .nav_item .tit {
    color: #2F353D !important;
}

.header.on .nav_item .tit.on {
    color: #1F70F0 !important;
}

.header.on .nav_item .tit i {
    color: #2F353D !important;
}

.header.on .nav_item:hover .tit {
    color: #1F70F0 !important;
}

.header.on .nav_item:hover .tit i {
    color: #1F70F0 !important;
}

.header.on {
    background: rgba(255, 255, 255, 0.99);
    box-shadow: 0px 0px 7px 2px rgb(0 0 0 / 10%);
}

.jjfa_swiper .swiper-button-next {
    position: absolute;
    right: -70px;
    top: 50%;
    width: 36px;
    height: 36px;
    background: url(../imgs/r_icon.png) no-repeat center;
    background-size: cover;
    transition: all .3s;
    cursor: pointer;
    opacity: 1;
    box-shadow: 0 2px 15px 0 rgb(0 0 0 / 10%);
    border-radius: 50%;
    z-index: 2;
}

.jjfa_swiper .swiper-button-next:hover {
    background: url(../imgs/r_icon2.png) no-repeat center;
    background-size: cover;
}

.jjfa_swiper .swiper-button-prev {
    position: absolute;
    left: -70px;
    top: 50%;
    width: 36px;
    height: 36px;
    background: url(../imgs/l_icon.png) no-repeat center;
    background-size: cover;
    transition: all .3s;
    cursor: pointer;
    opacity: 1;
    box-shadow: 0 2px 15px 0 rgb(0 0 0 / 10%);
    border-radius: 50%;
    z-index: 2;
}

.jjfa_swiper .swiper-button-prev:hover {
    background: url(../imgs/l_icon2.png) no-repeat center;
    background-size: cover;
}

.jjfa_swiper .swiper-button-disabled {
    display: none !important;
}

.video_mask {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, .3);
    transition: all .3s;
    z-index: 9999;
}

.video_mask .video_box {
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    width: 1000px !important;
    height: 562px !important;
}

.video_mask .video_play {
    width: 1000px !important;
    height: 562px !important;
}

.video_mask .close {
    position: absolute;
    width: 30px;
    height: 30px;
    top: -15px;
    right: -15px;
    background: url(../imgs/v_close1.png) no-repeat center;
    background-size: cover;
    transition: all .3s;
    cursor: pointer;
}

.video_mask .close:hover {
    background: url(../imgs/v_close2.png) no-repeat center;
    background-size: cover;
}