.about > .flexBetween {
  align-items: flex-start;
  padding: 125px 0;
}

.about .subPageBanner {
  height: 768px;
}

.about .part_1 .ctMain {
  left: 50%;
  text-align: center;
  transform: translate(-50%, -50%);
}

.about .part_3 {
    padding: 145px 0 240px;
}

.about .part_3 .p1,
.about .part_3 .p2 {
    text-align: center;
}

.about .part_3 .p1 {
    margin-bottom: 60px;
    font-size: 40px;
}

.about .part_3 .p2 {
    margin: 0 auto;
    max-width: 800px;
    font-size: 20px;
    line-height: 33px;
    color: #8e8e8e;
}

.about .part_3 .threeItem {
    display: flex;
    margin-top: 75px;
    align-items: center;
    justify-content: center;
}

.about .part_3 .threeItem .item {
    margin: 0 45px;
    text-align: left;
}

.about .part_3 .threeItem .item .txt {
    margin-bottom: 15px;
    font-size: 25px;
    line-height: 32px;
    color: #8e8e8e;
}

.about .part_3 .num {
    font-size: 60px;
    font-weight: bold;
    color: #f08519;
}

.about .part_3 .num span {
    font-size: 60px;
}

.part_4 {
    padding: 145px 0 160px;
    background-color: #f5f5f5;
}

.about .part_4 .partTitle .p1,
.about .part_5 .partTitle .p1 {
    font-size: 40px;
}

.about .part_4 .partTitle .p2,
.about .part_5 .partTitle .p2 {
    margin-top: 10px;
    font-size: 20px;
    line-height: 33px;
    color: #8e8e8e;
}

.part_4 .threeItem {
    display: flex;
    margin-top: 45px;
    align-items: center;
    justify-content: space-between;
}

.part_4 .threeItem .item {
    position: relative;
    height: 630px;
    width: 33%;
    max-width: 483px;
    color: white;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 20px;
    overflow: hidden;
}

.part_4 .threeItem .ptuTxt {
    position: absolute;
    width: 100%;
    height: 240px;
    padding: 50px 55px;
    left: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, .7);
} 

.part_4 .threeItem .item .p1 {
    font-size: 30px;
    line-height: 25px;
}

.part_4 .threeItem .item .p2 {
    margin-top: 15px;
    font-size: 16px;
    line-height: 25px;
}

.part_5 {
    padding-bottom: 190px;
    background-color: #f5f5f5;
} 

.part_5 .threeItem {
    display: flex;
    margin-top: 75px;
    align-items: center;
    justify-content: space-between;
}

.part_5 .threeItem .item {
    position: relative;
    height: 545px;
    width: 49%;
    max-width: 750px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 20px;
    overflow: hidden;
}

.part_5 .threeItem .ptuTxt {
    position: absolute;
    width: 100%;
    height: 174px;
    padding: 35px 55px;
    left: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, .4);
} 

.part_5 .threeItem .item .p2 {
    margin-top: 15px;
    font-size: 16px;
    line-height: 25px;
    color: white;
}

.part_2 .maxWidth {
    margin: 175px auto 0;
    padding: 0;
    max-width: 1550px;
    border-radius: 20px;
    overflow: hidden;
}

.part_2 video {
    width: 100%;
    height: 100%;
}

.part_7 {
    padding: 255px 0 260px;
}

.part_7 .p1 {
    font-size: 40px;
}

.part_7 .p2 {
    max-width: 1115px;
    margin-top: 40px;
    font-size: 20px;
    line-height: 33px;
    color: #8e8e8e;
}

.part_7 .threeItem {
    display: flex;
    margin-top: 100px;
    align-items: center;
    justify-content: space-between;
}

.part_7 .threeItem .item {
    position: relative;
    height: 296px;
    width: 33%;
    max-width: 494px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 20px;
    overflow: hidden;
}

.part_7 .threeItem .ptuTxt {
    position: absolute;
    width: 100%;
    padding-left: 47px;
    left: 0;
    bottom: 35px;
} 

.part_7 .threeItem .item .p2 {
    font-size: 23px;
    line-height: 33px;
    color: white;
}

.part_6 {
    margin: 220px auto 0;
}

.part_6 .maxWidth {
    align-items: center;
}

.part_6 .rightTxt {
    padding-left: 105px;
    flex: 1;
}

.part_6 .leftPic img{ width:100%;}


.part_6 .rightTxt .p2 {
    font-size: 20px;
    line-height: 33px;
    color: #8e8e8e;
}

.part_6 .rightTxt .p1 {
    margin-bottom: 50px;
    font-size: 40px;
    line-height: 60px;
}

.part_6 .leftPic {
	width:50%;
	max-width:735px;
    position: relative;
}


@media (max-width:768px) {
.part_2 .maxWidth{ margin-top:25%}
.about .part_3{ padding:15% 15px 20%;}
.part_4 .threeItem,.part_5 .threeItem{ display:block}
.part_4 .threeItem .item,.part_5 .threeItem .item{ height:auto; padding:100% 0 0 0; margin-bottom:5%; width:100%; max-width:inherit}
.part_4,.part_7{ padding:15% 0 20%;}
.part_5{ padding-bottom:20%;}
.flexBetween{ display:block}
.part_6 .leftPic{ width:100%; max-width:inherit}
.part_6 .rightTxt{ padding:10%;}
.part_6{ margin-top:15%}
}

@media (max-width:640px) {
.about .part_3 .p1{ font-size:34px;}
.about .part_3 .p2{ font-size:18px;}
.about .part_3 .threeItem{ display:block;}
.about .part_3 .num{ font-size:50px;}
.about .part_3 .threeItem .item .txt{ font-size:22px;}
.part_4 .threeItem .item .p1{ font-size:24px;}
.about .part_4 .partTitle .p1, .about .part_5 .partTitle .p1{ font-size:30px;}
.part_6 .rightTxt .p1{ font-size:32px; margin-bottom:30px; line-height:50px;}
.part_6 .rightTxt .p2,.part_7 .p2{ font-size:16px; line-height:26px;}
.part_7 .p1{ font-size:32px;}
.part_7 .threeItem{ display:block;}
.part_7 .threeItem .item{ width:100%; height:auto; padding:50% 0 25% 0; margin-bottom:5%;}
}