/* title */

.about-title {
    text-align: left;
}

.about-title .ch {
    font-size: 2.4vw;
    line-height: 3vw;
}

.about-title .ch span {
    color: #f38f3c;
}

.about-title .en {
    font-size: 0.8vw;
    line-height: 1vw;
    color: #000;
}

.about-more {
    width: 120px;
}

.about-more a {
    display: block;
    font-size: 14px;
    line-height: 36px;
    color: #fff;
    text-align: center;
    background: #f38f3c;
    border: 1px solid #f38f3c;
    border-radius: 18px
}

.about-more a:hover {
    color: #f38f3c;
    background: #fff;
}


/* about1 */

.about1 {
    position: relative;
    z-index: 1;
    padding: 7.5vw 14.5vw 0;
    background: url(../images/about1_bg.jpg) no-repeat center 0/cover;
    border-bottom: 0.4vw solid #fff;
}

.about1-since {
    position: absolute;
    z-index: 1;
    left: 0;
    bottom: -0.4vw;
}

.about1-main {
    position: relative;
    z-index: 50;
    display: flex;
    justify-content: space-between;
    padding-left: 16vw;
}

.about1-nav {
    padding: 0;
}

.about1-nav ul li {
    padding-bottom: 0.7vw;
}

.about1-nav ul a {
    position: relative;
    display: block;
    width: 6.5vw;
    font-size: 1vw;
    line-height: 1.6vw;
    color: #fff;
    text-align: center;
    background: #f38f3c;
}

.about1-nav ul a:hover::after {
    content: '';
    position: absolute;
    right: -7px;
    top: 0;
    width: 8px;
    height: 100%;
    background: url(../images/three2.png) no-repeat 0 center;
}

.about1-box {
    position: relative;
    width: 40vw;
    padding: 3.5vw;
    background: rgba(243, 143, 60, 0.8);
}

.about1-icon {
    position: absolute;
    z-index: 10;
    left: -3vw;
    top: 4vw;
}

.about1-icon img {
    width: 5.8vw;
}

.about1-logo {
    width: 12vw;
    text-align: center;
}

.about1-logo img {
    width: 8.5vw;
}

.about1-title {
    font-weight: bold;
    font-size: 1.2vw;
    line-height: 1.4vw;
    color: #fff;
}

.about1-p {
    height: 15vw;
    overflow: hidden;
    margin-top: 1.2vw;
    font-size: 0.8vw;
    line-height: 1.5vw;
    color: #fff;
}

.about1-more {
    margin-top: 2vw;
}


/* about2 */

.about2 {
    position: relative;
    padding: 10.5vw 0 6vw;
    background: url(../images/about2_bg.jpg) no-repeat center 0/cover;
    border-bottom: 0.5vw solid #f38f3c;
}

.about2-main {
    position: relative;
    z-index: 50;
    display: flex;
    justify-content: space-between;
    width: 68vw;
    margin: 0 auto;
    padding: 0 1vw;
}

.about2-left {
    width: 34vw;
}

.about2-p {
    height: 10.8vw;
    margin-top: 2.4vw;
    overflow: hidden;
    font-size: 0.9vw;
    line-height: 1.8vw;
}

.about2-more {
    margin-top: 2.5vw;
}

.about2-right {
    width: 30vw;
    height: 25vw;
}

.about2-box ul {
    margin-top: 1.4vw;
    border: 1px solid #999999;
}

.about2-box ul li {
    padding: 0;
    border-top: 1px solid #999999;
    cursor: pointer;
}

.about2-box ul li:nth-child(1) {
    border: 0;
}

.about2-li-title {
    padding: 0 1vw;
    font-size: 0.9vw;
    line-height: 2.4vw;
    color: #000;
    background: #fff url(../images/arrow_bb.png) no-repeat 28vw center/0.5vw;
}

.about2-li-p {
    display: none;
    height: 6vw;
    padding: 1vw;
    overflow: hidden;
    font-size: 0.8vw;
    line-height: 1vw;
    color: #999999;
}

.about2-box li:nth-child(1) .about2-li-p {
    display: block;
}

.about2-box ul li.active .about2-li-title {
    color: #fff;
    background-color: #f38f3c;
    background-image: url(../images/arrow_ww.png);
}

.about2-circle1 {
    position: absolute;
    z-index: 1;
    left: 7vw;
    bottom: 10vw;
}

.about2-circle1 img {
    width: 7vw;
}

.about2-circle2 {
    position: absolute;
    z-index: 1;
    left: 13vw;
    bottom: 8vw;
}

.about2-circle2 img {
    width: 2vw;
}

.about2-circle3 {
    position: absolute;
    z-index: 1;
    left: 14vw;
    bottom: -1.4vw;
}

.about2-circle3 img {
    width: 8.8vw;
}

.about2-circle4 {
    position: absolute;
    z-index: 1;
    left: 42vw;
    bottom: 4.2vw;
}

.about2-circle4 img {
    width: 8.8vw;
}

.about2-circle5 {
    position: absolute;
    z-index: 1;
    left: 48.5vw;
    bottom: 0;
}

.about2-circle5 img {
    width: 3.4vw;
}


/* about3 */

.about3 {
    padding: 7vw 16vw 5vw 8vw;
    background: url(../images/about3_bg.jpg) no-repeat center 0/cover;
}

.about3-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 55vw;
    margin: 0 auto;
}

.about3-box {
    position: relative;
    height: 174px;
    overflow: hidden;
    margin-top: 5vw;
}

.about3-box ul {
    position: absolute;
    left: 0;
    top: 0;
    display: flex;
}

.about3-box ul li {
    padding: 0 0.2vw;
}

.about3-box ul li i {
    display: block;
    border: 1px solid #000;
}

.about3-box ul li i img {
    width: 232px;
}


/* about4 */

.about4 {
    position: relative;
    height: 36vw;
    padding: 0 5vw 0 19vw;
    background: url(../images/about4_bg.jpg) no-repeat center 0/cover;
}

.about4-slide {
    position: absolute;
    left: 0;
    top: 50%;
    margin-top: -16.2vw;
    width: 19.5vw;
    height: 32vw;
    padding: 13.8vw 0 0 3vw;
    color: #fff;
    background: url(../images/about4_slide.png) no-repeat center center/19.5vw;
}

.about4-slide .ch {
    padding-left: 1.5vw;
    font-weight: bold;
    font-size: 1.5vw;
    line-height: 1.8vw;
}

.about4-slide .en {
    padding-top: 0.5vw;
    font-weight: bold;
    font-size: 0.8vw;
    line-height: 1vw;
}

.about4-box {
    position: relative;
    height: 100%;
    padding: 0 1.5vw;
    background: url(../images/about4_lines.png) no-repeat center center/100%;
}

.about4-box ul li {
    position: absolute;
    left: 5vw;
    top: 50%;
    margin-top: -11.8vw;
    padding: 0 1.8vw;
    background: url(../images/about4_shu.png) no-repeat 0 bottom/0.9vw;
}

.about4-box ul li:nth-child(2n) {
    margin-top: -0.5vw;
    padding-top: 2.4vw;
    background: url(../images/about4_shu2.png) no-repeat 0 0/0.9vw;
}

.about4-box ul li:nth-child(2) {
    left: 15vw;
}

.about4-box ul li:nth-child(3) {
    left: 25vw;
}

.about4-box ul li:nth-child(4) {
    left: 35vw;
}

.about4-box ul li:nth-child(5) {
    left: 45vw;
}

.about4-box ul li:nth-child(6) {
    left: 55vw;
}

.about4-li-time {
    width: 5vw;
    font-size: 0.8vw;
    line-height: 1.5vw;
    text-align: center;
    color: #fff;
    background: #f38f3c;
    border-radius: 15px;
}

.about4-li-p {
    width: 10vw;
    height: 9vw;
    margin-top: 1.8vw;
    padding-bottom: 3vw;
    overflow: hidden;
    font-size: 0.8vw;
    line-height: 1.2vw;
    color: #000;
}

.about4-more {
    position: absolute;
    left: 65vw;
    top: 50%;
    height: 9.4vw;
    margin-top: -8.9vw;
    padding: 2vw 1.8vw 0;
    background: url(../images/about4_shu.png) no-repeat 0 bottom/0.9vw;
}

.about4-more a {
    display: block;
    width: 6vw;
    padding: 1vw 0;
    font-size: 0.8vw;
    line-height: 1.2vw;
    text-align: center;
    color: #fff;
    background: #f38f3c;
    border: 1px solid #f38f3c;
    border-radius: 1.2vw;
}

.about4-more a:hover {
    color: #f38f3c;
    background: #fff;
}


/* about5 */

.about5 {
    display: flex;
    justify-content: space-between;
    padding: 3vw 5vw 1vw;
    background: #fff;
}

.about5-line {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.about5-line:nth-child(1) {
    width: 20.85vw;
}

.about5-line:nth-child(2) {
    width: 24vw;
}

.about5-line:nth-child(3) {
    width: 40.4vw;
}

.about5-top {
    position: relative;
    width: 100%;
    height: 11.58vw;
    padding-top: 0.9vw;
}

.about5-more {
    margin-top: 1.6vw;
}

.about5-ad {
    position: absolute;
    right: 0;
    top: 1vw;
    font-size: 12px;
    line-height: 30px;
    color: #000;
}

.about5-img {
    padding: 1vw 0;
}

.about5-img img {
    width: 100%;
}

.about5-img5 img {
    width: 24vw;
}

.about5-img6 img {
    width: 14.6vw;
}