.head-thumb {
    height: 340px;
    background: url("../img/party_building_bg.jpg");
    background-size: cover;
}
.trans * {
    transition: all .2s ease-out 0s;
    -moz-transition: all .2s ease-out 0s;
    -webkit-transition: all .2s ease-out 0s;
    -o-transition: all .2s ease-out 0s;
}

@media (max-width: 1000px) {
    .head-thumb {
        height: auto;
        line-height: 1;
    }
}

a {
    color: inherit;
    text-decoration-line: none;
}

ul {
    margin: 0; padding: 0; list-style: none;
}

.div-w {
    width: 90%;
    min-width: 320px;
    max-width: 1440px;
}
@media (max-width: 1460px) {
    .div-w { width: 96%; }
}

.margin-center { margin: 0 auto; }

/* region ↓标题文章栏目↓ */
.about-main {
    padding-top: 60px;
}

.about-inner {
    width: 90%;
    min-width: 320px;
    max-width: 1440px;
    margin: 0 auto;
}
@media (max-width: 1460px) {
    .about-inner { width: 96%; }
    .about-bottom-inner { width: 96%; }
}

.about-main .article-title {
    font-size: 28px;
    line-height: 64px;
    color: #555;
    height: 64px;
    text-align: center;
}

.about-main .content {
    font-size: 14px;
    color: #666;
    max-width: 1160px;
    padding-top: 4px;
    padding-bottom: 46px;
    line-height: 28px;
    margin: 0 auto;
}
/* endregion ↑标题文章栏目↑ */

/* region ↓图片组栏目↓*/
.pic-group {
    width: 100%;
    padding-bottom: 40px;
}

.pic-group .left {
    width: 50%; height: 530px;
    float: left;
    position: relative;
    overflow: hidden;
}
.pic-group .center {
    width: 50%; height: 530px;
    float: left;
}
@media (max-width: 992px) {
    .pic-group .left { width: 100%; }
    .pic-group .center { width: 100%; }
}

.pic-group .left-content {
    width: 392px; height: 325px;
    position: absolute;
    left: 60px;
    top: 70px;
    padding-top: 9px;
    z-index: 1;
    color: white;
    font-size: 14px;
}

.pic-group .left-content .title {
    height: 36px;
    font-size: 22px;
    line-height: 36px;
}

.pic-group .left-content .ens {
    height: 100px;
    line-height: 30px;
}

.pic-group .left-content .description {
    padding-bottom: 48px;
    line-height: 24px;
}

.pic-group .left-content .description:after {
    content: '';
    width: 50px; height: 1px;
    background: #F0F6F6;
    position: absolute;
    left: 0;
    margin-top: -145px;
    transition: all .3s ease-out 0s;
    -moz-transition: all .3s ease-out 0s;
    -webkit-transition: all .3s ease-out 0s;
    -o-transition: all .3s ease-out 0s;
}
.pic-group .left:hover .left-content .description:after {
    width: 100px;
}

.pic-group .left-content .more {
    width: 96px;
    height: 32px;
    border: 1px solid #fff;
    margin-top: 20px;
    background: url(../../../Introduction/Views/img/pic-frame-arrow.png) no-repeat center center;
}
.pic-group .left:hover .more {
    background-color: rgb(0, 129,62);
    border-color: rgb(0, 129,62);
}

.pic-group .left .bg-span {
    background: url("../img/room.jpg") no-repeat center center;
    background-size: cover;
    display: block;
    width: 100%; height: 100%;
    position: absolute;
    left: 0; top: 0;
}
.pic-group .left:hover .bg-span {
    transition: transform 0.5s;
    transform: scale(1.1);
}

.pic-group .center .center-item {
    width: 100%; height: 50%;
    background-color: #F5F5F5;
}
.pic-group .center .center-item:hover { background-color: rgb(0, 129, 62); }

.pic-group .center .intro, .pic-group .center .pic {
    width: 50%; height: 100%;
    float: left;
    position: relative;
    overflow: hidden;
}

.pic-group .center .intro-content {
    width: 100%;
    padding-top: 12px;
    height: 178px;
    position: absolute;
    padding-left: 40px;
    top: 50%;
    margin-top: -95px;
}

.pic-group .center .intro .ens {
    height: 45px;
    line-height: 30px;
    color: #999;
    font-size: 14px;
}
.pic-group .center-item:hover .ens { color: white; }

.pic-group .center-item .more {
    width: 96px;
    height: 32px;
    display: inline-block;
    border: 1px solid #333;
    margin-top: 42px;
    background: url(../../../Introduction/Views/img/black_white_arrow.png) no-repeat -55px center;
    position: relative;
}
.pic-group .center-item .more:after {
    content: "";
    width: 50px;
    height: 1px;
    background: #ADADAD;
    position: absolute;
    top: -35px;
    transition: all .3s ease-out 0s;
    -moz-transition: all .3s ease-out 0s;
    -webkit-transition: all .3s ease-out 0s;
    -o-transition: all .3s ease-out 0s;
}
.pic-group .center-item:hover .more {
    border-color: white;
    background: url(../../../Introduction/Views/img/black_white_arrow.png) no-repeat 40px center;
}
.pic-group .center-item:hover .more:after {
    background: white;
    width: 100px;
}

.pic-group .center .intro .title {
    color: #008140;
    height: 36px;
    line-height: 36px;
    font-size: 22px;
}
.pic-group .center-item:hover .intro .title { color: white; }

.pic-group .center-item .pic i {
    display: block;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    position: absolute;
    top: 50px;
    height: 0;
    width: 0;
    z-index: 10;
}
.pic-group .center-item.top .pic i {
    border-left: 9px solid #f5f5f5;
}
.pic-group .center-item.top:hover .pic i { border-left-color: #008140; }
.pic-group .center-item.bottom .pic i {
    border-left: 0;
    right: 0;
    left: auto;
    border-right: 9px solid #f5f5f5;
}
.pic-group .center-item.bottom:hover .pic i { border-right-color: #008140; }

.pic-group .center-item .pic .bg-span{
    display: block;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-repeat: no-repeat;
    background-position-x: center;
    background-position-y: center;
}
.pic-group .center-item:hover .pic .bg-span {
    transition: transform 0.5s;
    transform: scale(1.1);
}
.pic-group .center-item.top .pic .bg-span {
    /*background: url("../img/tian_an_men.jpg") no-repeat center center;*/
    background-image: url("../img/tian_an_men.jpg");
}
.pic-group .center-item.bottom .pic .bg-span {
    background-image: url("../img/flag.jpg");
}
/* endregion ↑图片组栏目↑ */

/* region ↓下方视频栏↓*/
.about-bottom {
    height: 352px;
    margin-bottom: 80px;
    background: url("../img/party_building_bottom_bg.jpg") no-repeat center top;
}

.about-bottom-inner {
    width: 90%;
    height: 100%;
    min-width: 320px;
    max-width: 1440px;
    padding: 0 15px;
    margin: 0 auto;
}
.about-bottom .video-pic-frame { position: absolute; }

@media (max-width: 576px) {
    .about-bottom .video-pic-frame { display: none; }
}

.about-bottom .play-pic-frame {
    width: 70px; height: 70px;
    background: url("../img/party_building_img.png") no-repeat;
    position: relative;
    left: 50%; top: 50%;
    margin-left: -35px;
    margin-top: -24px;
}

.about-bottom .description {
    width: calc(100% - 30px);
    position: relative;
    top: 50%;
    font-size: 15px;
    line-height: 24px;
    margin: 22px auto 0 auto;
    color: white;
}
/* endregion ↑下方视频栏↑ */