.about-container{
    padding-top: 80px;
    letter-spacing: 1px;
    background: #fff;
}
.about-banner{
    height: 500px;
    background:url(../img/about/banner-bg.png) center center no-repeat;
    background-size: auto 100%;
    font-size: 0;
}
.about-1-wrapper{
    height: 325px;
    background:#fff;
}
.about-1{
    margin:0 auto;
    width: 1200px;
    height: 100%;
    background:url(../img/about/3.png) center center no-repeat;
    background-size: 100% 100%;
    font-size: 0;
}
.about-2-wrapper{
    height: 418px;
    background:url(../img/about/1.png) center center no-repeat;
    background-size: auto 100%;
    font-size:0
}
.about-3-wrapper{
    height:320px;
    margin-top: 62px;
}
.about-3{
    width: 1200px;
    margin:0 auto;
    height: 320px;
    background:url(../img/about/2.png) center center no-repeat;
    background-size: auto 100%;
    font-size:0;
}
.about-4-wrapper{
    margin-top: 61px;
}
.about-4{
    margin:0 auto;
    width: 1200px;
    height: 656px;
    position:relative;
    font-size:0;
    box-shadow: 0 2px 16px rgb(42 42 42 / 30%);
}

.about-4 .swiper-button-prev,.about-4 .swiper-button-next{
    width: 56px;
	height: 56px;
    position:absolute;
    z-index: 2;
    left: 1047px;
    top: 448px;
    margin-top:0 ;
}
.about-4 .swiper-button-prev {
	background:url(../img/about/left-btn.png) center center no-repeat;
	background-size: 100%;
}
.about-4 .swiper-button-next {
    left: 1111px;
    top: 444px;
	background:url(../img/about/right-btn.png) center center no-repeat;
	background-size: 100%;
}
.about-4 .swiper-slide{
    display: flex;
    justify-content: center;
    align-items: center;
}
.mySwiper{
    width: 376px;
    position: absolute;
    bottom: 24px;
    right: 35px;
    z-index: 1000;
}
.mySwiper .swiper-slide{
    width: 112px;
    height: 112px;
    opacity: 0.5;
}
.mySwiper .swiper-slide-thumb-active {
    opacity: 1;
}
.mySwiper .swiper-slide img{
    display: block;
    /* width: 100%; */
    width: 112px;
    height: 112px;
}

.about-5-wrapper{
    margin-top: 67px;
    font-size:0;
    position: relative;
    min-width: 1200px;
}
.development-wrapper{
    display: flex;
    justify-content: flex-start;
}
.about-5-left{
    width: 60%;
    height: 780px;
    background: url(../img/about/development-bg.png) center center no-repeat;
    background-size: 100% 100%;
}
.about-5-right{
    width: 40%;
    background: #1C56A0;
}
.about-5-right h4{
    padding-top: 30px;
    margin-left: -111px;
    font-size: 66px;
    font-weight: bold;
    color: #FFFFFF;
    margin-block-start: 0;
    margin-block-end: 0;
}
.about-5-right h5{
    margin-left: 276px;
    font-size: 30px;
    font-weight: bold;
    color: #FFFFFF;
    letter-spacing: 1px;
}
.timeline-wrapper{
    position: absolute;
    width:58%;
    top: 150px;
    left: 18.75%;
}
#timeline {
    width: 100%;
    height: 470px;
    overflow: hidden;
}
#dates {
    float: left;
    width: 20.5%;
    margin-left: 8%;
    height: 400px;
    overflow: hidden;
}
#dates li {
    list-style: none;
    width: 100%;
    text-align: center;
}
#dates a {
    display: block;
    font-size: 14px;
    height: 82px;
    line-height: 82px;
    color: #fff;
    box-sizing: border-box;
    letter-spacing:0;
}
#dates .selected {
    font-size: 24px;
    border-bottom: 2px solid #fff;
    border-top: 2px solid #fff;
}
#issues {
    width: 71.4%;
    height: 470px;
    overflow: hidden;
    float: left;
}	
#issues li {
    width: 400px;
    height: 470px;
    list-style: none;
}
#issues li h4{
    font-size: 56px;
    font-weight: bold;
    color: #FFFFFF;
}
#issues li h4 span{
    font-size: 24px;
}
#issues li .line{
    width: 21px;
    height: 2px;
    background: #fff;
    margin-top: 23px;
    margin-bottom: 49px;
}
#issues li .paragraph{
    margin-bottom: 30px;
}
#issues li p {
    font-size: 14px;
    color: #FFFFFF;
    letter-spacing:0;
}

.about-6-wrapper{
    margin-top: 59px;
    font-size:0;
}
.about-6{
    width: 1200px;
    margin:0 auto;
    display:flex;
    flex-wrap: wrap;
}
.about-6 > div{
    width: 588px;
    height: 280px;
    margin-bottom: 20px;
    margin-right: 24px;
    transition: background 0.25s linear;
    box-shadow: 0 2px 16px rgba(42,42,42, 0.3)
}
.about-6 > div:nth-child(2) {
    margin-right:0;
}
.about-6 > div:nth-child(4) {
    margin-right:0;
}
.about-6 > div:nth-child(6) {
    margin-right:0;
}
.about-6 > div:nth-child(1) {
    background:url(../img/about/addr-1.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6 > div:nth-child(2) {
    background:url(../img/about/addr-2.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6 > div:nth-child(3) {
    background:url(../img/about/addr-3.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6 > div:nth-child(4) {
    background:url(../img/about/addr-4.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6 > div:nth-child(5) {
    background:url(../img/about/addr-5.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6 > div:nth-child(6) {
    background:url(../img/about/addr-6.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6 > div:nth-child(1):hover {
    background:url(../img/about/addr-1-hover.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6 > div:nth-child(2):hover {
    background:url(../img/about/addr-2-hover.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6 > div:nth-child(3):hover {
    background:url(../img/about/addr-3-hover.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6 > div:nth-child(4):hover {
    background:url(../img/about/addr-4-hover.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6 > div:nth-child(5):hover {
    background:url(../img/about/addr-5-hover.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6 > div:nth-child(6):hover {
    background:url(../img/about/addr-6.png) center center no-repeat;
    background-size: 588px 280px;
}
.about-6-wrapper h3{
    text-align:center;
    font-size: 30px;
    color:#333;
    font-weight:bold;
    margin-bottom: 59px;
}
.about-7-wrapper{
    height: 308px;
    background:url(../img/about/0.png) center center no-repeat;
    background-size:auto 100%;
    margin-top: 86px;
    font-size:0;
}