/* 第一屏 */

.first {
    background: url("https://img.3ccg.com/cdzgw_aboutUs0.png") no-repeat;
    background-size: 100% 100%;
}

.first p:nth-child(1) {
    font-family: MicrosoftYaHei;
    font-size: 1.875vw;
    color: #ffffff;
    text-align: center;
}

.first p:nth-child(2) {
	font-family: MicrosoftYaHei;
	font-size: 1.563vw;
    color: #ffffff;
    text-align: center;
    margin-top: 0.5vw;
}

.first p:nth-child(3) {
    width: 37.969vw;
    font-size: 0.729vw;
    color: #ffffff;
    line-height: 1.563vw;
    margin: 1.5vw auto 0;
    text-align: center;
}
/* 第二屏 */

.second-body {
    position: absolute;
    top: 60vh;
    left: 0;
    transform: translate(0, -50%);
    width: 100vw;
    padding: 0 12.542vw 0 13.542vw;
}

.second-body>div:nth-child(1) {
    width: 72.917vw;
	height: 45vh;
}

.second-body>div:nth-child(1) img {
    width: 100%;
    height: 100%;
}

.second-body>div:nth-child(2) {
    margin-top: 2vh;
    overflow: hidden;
}

.second-body-left {
    float: left;
    color: #333333;
}

.second-body-left p:nth-child(1) {
    font-family: MicrosoftYaHei;
    font-size: 1.25vw;
    line-height: 2.5vw;
    font-weight: bold;
    color: #212734;
}
.second-body-left p:nth-child(2) {
    font-family: MicrosoftYaHeiLight;
	font-size: 0.729vw;
    font-weight: bold;
    color: #1189eb;
}

.second-body-right {
    float: right;
    width: 48.438vw;
    line-height: 1.563vw;
}

.second-body-right p:nth-child(3) {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 5;
    overflow: hidden;
}

/* 第三屏 */
.third {
    background-color: #212734;
}

.third-body{
    padding: 0 12.542vw 0 13.542vw;
}

.third-body .section-head p {
    color: #fff;
}

.third-body ul {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    overflow: hidden;
    margin-top: 5vh;
}

.third-body ul li {
    width: 30%;
    margin-bottom: 4vw;
}

.third-body ul li div:nth-child(1) {
    float: left;
    width: 2.5vw;
    height: 2.5vw;
    margin: 1vw 2vw 0 0;
}

.third-body ul li div:nth-child(1) img {
    width: 100%;
    height: 100%;
}

.third-body ul li div:nth-child(2) {
    float: left;
}

.third-body ul li div:nth-child(2) p:nth-child(1) {
    font-size: 0.938vw;
    font-weight: bold;
    color: #ffffff;
}

.third-body ul li div:nth-child(2) p:nth-child(2) {
    width: 12.083vw;
    font-size: 0.729vw;
    font-weight: normal;
    margin-top: 0.5vw;
    color: #ffffff;
}

.third-body>div:nth-child(3) {
    position: absolute;
    bottom: 0;
    left: 0;
    display: flex;
    justify-content: space-between;
    width: 100%;
    height: 12.5vw;
    padding: 0 16vw;
    text-align: center;
    background: url(https://img.3ccg.com/cdzgw_aboutus_2.png) no-repeat;
}
.third-body>div:nth-child(3) div {
    position: relative;
    flex: 1;
    padding-top: 7vh;
}

.third-body>div:nth-child(3) div p:nth-child(1){
    font-family: MicrosoftYaHei;
	font-size: 2.5vw;
	font-weight: normal;
	line-height: 3vw;
	color: #ffffff;
}

.third-body>div:nth-child(3) div p:nth-child(2) {
    font-family: MicrosoftYaHei;
	font-size: 0.729vw;
	font-weight: normal;
	line-height: 3vw;
    color: #fff;
}

.third-body>div:nth-child(3) div::after {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translate(0,-50%);
    content: "";
    display: inline-block;
    width: 0.104vw;
	height: 1.563vw;
	background-color: #ffffff;
}

.third-body>div:nth-child(3) div:last-child::after {
    display: none;
}

/* 第四屏 */
.fourth-body {
    position: absolute;
    top: 30%;
    left: 0;
    width: 100%;
    padding: 0 12.542vw 0 13.542vw;
}

.logos{
    margin: 0;
    padding: 0;
}

.logos li {
    position: relative;
    display: inline-block;
    height: 20vh;
    margin-right: 2.5vw;
    margin-bottom: 2.5vw;
    box-sizing: border-box;
    cursor: pointer;
}

.logos li>div:nth-child(1) {
    float: left;
    width: 15.625vw;
    height: 100%;
    text-align: center;
	background-color: #ffffff;
}

.logos li div:nth-child(1) img {
    float: left;
    width: 100%;
    height: 100%;
}

.logos li>div:nth-child(2) {
    float: right;
    margin-left: 1vw;
}

.logos li>div:nth-child(2) p:nth-child(1) {
    font-size: 1.563vw;
    font-weight: bold;
    color: #999999;
}

.logos li>div:nth-child(2) p:nth-child(2) {
    font-size: 0.833vw;
    font-weight: bold;
    color: #999999;
}

.logos li>div:nth-child(2) p:nth-child(3) {
    font-size: 0.938vw;
    font-weight: bold;
    color: #313131;
    line-height: 2vw;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
}

.logos li>div:nth-child(2) p:nth-child(4) {
    width: 17.448vw;
    font-size: 0.729vw;
    color: #999999;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    overflow: hidden;
}

.swiper-button-prev::after,
.swiper-button-next::after {
    display: none;
}

.btn1 {
    position: absolute;
    bottom: -20%;
    left: 50%;
    transform: translate(-50%,0);
    width: 9vw;
}

.swiper-button-prev,
.swiper-button-next {
    outline: none;
    width: 2.813vw;
    height: 2.813vw;
}