img {
    vertical-align: middle;
    border: 0;
}
.about_us_jiesao_video {
    width: 100%;
    margin-top: 89px;
    height: 756px;
    background: rgba(0, 0, 0, .3) url("../img/aboutUs/OurBusiness_banner.jpg") no-repeat center center ;
    background-size: cover;
    padding-top:336px ;
}
.about_us_jiesao_video h1{
    width:400px;
    height:65px;
    font-size:70px;
    font-weight:500;
    color:rgba(255,255,255,1);
    text-align: center;
    line-height:65px;
    opacity:0.9;
    margin: 0 auto ;
    letter-spacing:10px;
}

.about_us_yewu {
    width: 1016px;
    margin: 0 auto;
    overflow: hidden;
}

.about_us_yewu > p:nth-child(1) {
    text-align: center;
    font-weight: 500;
    color: #000;
    font-size: 40px;
    line-height: 40px;
    margin-top: 83px;
}

.about_us_yewu > p {
    font-size: 16px;
    color: #676767;
    line-height: 24px;
    margin-bottom: 25px;
}
.about_us_yewu p:nth-child(5) {
    width:1014px;
    height:1px;
    background:rgba(45,45,45,1);
    opacity:0.56;
    margin-top: 60px;
    margin-bottom: 130px;
}

.about_us_yewu > div {
    width: 100%;
    margin-top: 50px;
}

.about_us_yewu > div > span:nth-child(1) {
    display: inline-block;
    width: 50%;
    height: 1px;
    background: linear-gradient(90deg, #f2f2f2, #9e9e9e);
    float: left;
}

.about_us_yewu > div > span:nth-child(2) {
    display: inline-block;
    width: 50%;
    height: 1px;
    background: linear-gradient(270deg, #f2f2f2, #9e9e9e);
    float: left;
}

.about_us_rongyap {
    width: 100%;
    background: #000000;
    padding: 80px 0 20px;
}
.about_us_rongyap p{
    margin-bottom: 10px;
}
.about_us_rongyap > p:nth-child(1) {
    text-align: center;
    font-size: 40px;
    font-weight: 500;
    line-height: 40px;
    color: #ffffff;
    opacity: 0.9;
}

.about_us_rongyap > p:nth-child(2) {
    text-align: center;
    margin: 19px auto 12px;
    font-size: 18px;
    font-weight: 300;
    color: #ffffff;
    line-height: 24px;
    opacity: 0.9;
}

.about_us_rongyap > div {
    width: 1144px;
    height: 196px;
    margin:  0 auto;
    margin-top: 53px;
    margin-bottom: 53px;
}

.about_us_rongyap > div > div {
    float: left;
    width: 270px;
    height: 196px;
    display: inline-block;
    -moz-background-size: 100% 100%;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    margin-left: 16px;
    color: #ffffff;
}
/* .about_us_rongyap > div:nth-child(3) > div:nth-child(1) {
    background-image: url('../img/aboutUs/AboutUs_pic7.jpg');
}
.about_us_rongyap > div:nth-child(3) > div:nth-child(2) {
    background-image: url('../img/aboutUs/AboutUs_pic8.jpg');
}
.about_us_rongyap > div:nth-child(3) > div:nth-child(3) {
    background-image: url('../img/aboutUs/AboutUs_pic9.jpg');
}
.about_us_rongyap > div:nth-child(3) > div:nth-child(4) {
    background-image: url('../img/aboutUs/AboutUs_pic10.jpg');
}
.about_us_rongyap > div:nth-child(3) > div:nth-child(5) {
    background-image: url('../img/aboutUs/AboutUs_pic11.jpg');
}
.about_us_rongyap > div:nth-child(4) > div:nth-child(1) {
    background-image: url('../img/aboutUs/AboutUs_pic12.jpg');
}
.about_us_rongyap > div:nth-child(4) > div:nth-child(2) {
    background-image: url('../img/aboutUs/AboutUs_pic13.jpg');
}
.about_us_rongyap > div:nth-child(4) > div:nth-child(3) {
    background-image: url('../img/aboutUs/AboutUs_pic14.jpg');
}
.about_us_rongyap > div:nth-child(4) > div:nth-child(4) {
    background-image: url('../img/aboutUs/AboutUs_pic15.jpg');
}
.about_us_rongyap > div:nth-child(4) > div:nth-child(5) {
    background-image: url('../img/aboutUs/AboutUs_pic16.jpg');
} */


.about_us_rongyap > div > div > div {
    background: rgba(0, 0, 0, 0.69);
    padding-top: 53px;
    height: 100%;
}

.about_us_rongyap > div > div > div > p:nth-child(1) {
    font-size: 40px;
    font-weight: 400;
    line-height: 40px;
    text-align: center;
    opacity: 0.9;
    transition: all .3s;
}

.about_us_rongyap > div > div > div > span:nth-child(1) {
    margin-top: 11px;
}

.about_us_rongyap > div > div > div > span {
    display: block;
    text-align: center;
    font-size: 18px;
    font-weight: 300;
    line-height: 24px;
    opacity: 0.9;
    transition: all .3s;
}


.about_us_rongyap > div > div:hover > div {
     animation: a1 1s  forwards;
}
@keyframes a1{
    0%{opacity: 1;}
    100%{opacity: 0;}
}
.about_us_rongyap > div > div:hover > div>p {
    animation: a1 1s  forwards;
}

.about_us_rongyap > div > div:hover > div>span {
    animation: a1 1s  forwards;
}


.about_us_rongyap > div > div:after {
    clear: both;
}

.about_us_news_more {
    width: 100%;
    height: 860px;
    background: url("../img/aboutUs/AboutUs_bg.png") no-repeat center center;
    background-size: cover;
    text-align: center;
    overflow: hidden;
}

.about_us_news_more > p:nth-child(1) {
    font-size: 60px;
    line-height: 60px;
    color: #fff;
    margin-top: 255px;
}

.about_us_news_more > p:nth-child(2) {
    font-size: 36px;
    line-height: 30px;
    color: #fff;
    margin-top: 33px;
}



.about_us_news_more > div:nth-child(3) > span:nth-child(2) {
    position: absolute;
    right: 25px;
}
.about_us_news_more > div:nth-child(3) > a:nth-child(1) {
   color: #FFFFFF;
}

.about_us_history {
    position: relative;
}

.red_slide {
    position: absolute;
    top: 70px;
    width: 211px;
    height: 523px;
    right: 40px;
    background: url("../img/aboutUs/AboutUs_redbg.png") 100% 100% no-repeat;
}

.red_slide .content {
    color: #ffffff;
    padding: 25px 25px 20px 60px;
}
.titleTime {
    font-size: 16px;
}

.TimeContent{
    font-size: 16px;
}

.TimeLineContent{
    position: absolute;
    bottom:209px;
    left: 206px;
}

.TimeLineContent #ContentTitle{
    font-size:20px;
    font-weight:500;
    color:#FFFFFF;
    line-height:25px;
    opacity:0.9;
    margin-bottom: 15px;
}

.TimeLineContent #ContentContent{
    font-size:19px;
    font-weight:300;
    color:#FFFFFF;
    line-height:25px;
    opacity:0.9;
    margin-bottom: 16px;
}

.TimeLineContent>span{
    display: block;
    width:62px;
    height:2px;
    background:#D9393B;
}

@media (min-width: 2100px){
	.about_us_jiesao_video {
		height: 850px;
	}
}

@media (min-width: 2500px){
	.about_us_jiesao_video {
	height: 1011px;
 }
 .about_us_jiesao_video{
    padding-top: 400px;
}
}

@media (min-width: 2700px){
	.about_us_jiesao_video {
		height: 1079px;
    }
    .about_us_jiesao_video{
        padding-top: 500px;
    }
}