.about {
    background: RGBA(248, 248, 248, 1);
}

.about .box1 {
    padding: 114px 0 142px;
}

.about .box1 .box-t {
    display: flex;
    justify-content: space-between;
}

.about .box1 .box-t-l {
    width: 42.42%;
}

.about .box1 .box-t-l .en {
    font-family: Rany-Bold;
    color: #222222;
    line-height: 1;
}

.about .box1 .box-t-l .zh {
    font-weight: 400;
    color: #222222;
    line-height: 1;
    margin-top: 14px;
    font-weight: bold;
}

.about .box1 .box-t-l .text-box {
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    line-height: 30px;
    margin-top: 65px;
}

.about .box1 .box-t-r {
    width: 46.24%;
}

.about .box1 .box-t-r .list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 25px;
    border-bottom: 1px solid RGBA(222, 222, 222, 1);
}

.about .box1 .box-t-r .list li:not(:last-child) {
    margin-bottom: 25px;
}

.about .box1 .box-t-r .list .li-l {
    font-family: Rany-Bold;
    color: #222222;
    line-height: 1;
}

.about .box1 .box-t-r .list .li-l .text {
    display: inline-block;
    font-family: 微软雅黑;
    font-weight: bold;
    vertical-align: middle;
}

.about .box1 .box-t-r .list .li-r {
    display: flex;
    align-items: center;
    width: 160px;
    font-weight: 400;
    font-size: 18px;
    color: #222222;
    line-height: 30px;
}

.about .box1 .box-t-r .list .li-r .bullet {
    width: 10px;
    height: 10px;
    background: #222222;
    border-radius: 50%;
    margin-right: 17px;
}

.about .box1 .box-c {
    position: relative;
    margin: 132px auto 0;
    width: 800px;
    max-width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    text-align: center;
    z-index: 3;
}

.about .box1 .box-c a {
    border: 1px solid #EFEFEF;
    background: #F8F8F8;
    line-height: 78px;
    font-weight: 400;
    font-size: 18px;
    color: #999999;
    transition: all 0.6s;
}

.about .box1 .box-c a:hover {
    color: RGBA(121, 23, 28, 1);
}

.about .box1 .box-c a.active {
    background-color: rgba(239, 239, 239, 1);
    color: rgba(34, 34, 34, 1);
    border-color: rgba(239, 239, 239, 1);
}

.about .box1 .box-b {
    position: relative;
    z-index: 2;
    margin-top: -20px;
}

.about .box1 .box-b .item {
    display: none;
}

.about .box1 .box-b .item.active {
    display: block;
}

.about .box1 .box-b .item video {
    display: block;
    width: 100%;
}

.about .box2 li {
    padding: 80px 0 143px;
}

.about .box2 li:nth-child(2n+1) {
    background-color: rgba(243, 243, 243, 1);
}

.about .box2 li .content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.about .box2 .li-l {
    flex: 1;
    margin-right: 50px;
}

.about .box2 li .zh {
    font-weight: bold;
    font-size: 18px;
    color: #222222;
    line-height: 1;
}

.about .box2 li .en {
    font-family: Rany-Bold;
    color: #222222;
    line-height: 1;
    text-transform: uppercase;
    margin-top: 10px;
}

.about .box2 li .title {
    font-weight: 300;
    font-size: 24px;
    color: #222222;
    line-height: 30px;
    margin-top: 1.2em;
}

.about .box2 li .title span {
    font-weight: bold;
}

.about .box2 .li-r {
    width: 50%;
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    line-height: 30px;
}

.about .box3 {
    padding: 120px 0 100px;
    background-color: RGBA(248, 248, 248, 1);
}

.indexTitle .zh {
    font-weight: bold;
}

.about .box3 .box-c {
    margin-top: 57px;
}

.about .box3 .box-c .swiper {
    overflow: visible;
}

.about .box3 .box-c .swiper::before {
    position: absolute;
    display: block;
    content: "";
    left: 50%;
    top: 39px;
    transform: translateX(-50%);
    width: 300%;
    height: 6px;
    background: linear-gradient(90deg, transparent 7px, RGBA(222, 222, 222, 1) 8px);
    background-size: 8px 1px;
    z-index: 3;
}

.about .box3 .box-c .swiper-slide {
    width: 304px;
    padding-right: 30px;
    cursor: pointer;
}

.about .box3 .box-c .swiper-slide .date {
    font-family: Rany-Bold;
    font-size: 24px;
    color: #222222;
    line-height: 1;
    transition: all 0.6s;
}

.about .box3 .box-c .swiper-slide.swiper-slide-thumb-active .text-box,
.about .box3 .box-c .swiper-slide.swiper-slide-thumb-active .date {
    color: rgba(121, 23, 28, 1);
}

.about .box3 .box-c .swiper-slide .line {
    width: 2px;
    height: 14px;
    background: #CCCCCC;
    transition: all 0.6s;
    transform: scaleY(.71);
    transform-origin: center bottom;
    margin-top: 7px;
}

.about .box3 .box-c .swiper-slide.swiper-slide-thumb-active .line {
    transform: translateY(1);
    background-color: rgba(121, 23, 28, 1);
}

.about .box3 .box-c .swiper-slide .text-box {
    font-weight: 400;
    font-size: 18px;
    color: #222222;
    line-height: 24px;
    margin-top: 20px;
    transition: all 0.6s;
}

.about .box3 .box-b {
    position: relative;
    margin-top: 110px;
}

.about .box3 .box-b .swiper-slide {
    display: flex;
    justify-content: space-between;
    padding-bottom: 20px;
    align-items: flex-start;
}

.about .box3 .box-b .swiper-slide .l {
    position: relative;
    width: 42.85%;
}

.about .box3 .box-b .swiper-slide .l::before {
    position: absolute;
    left: 0;
    top: 0;
    content: "";
    width: 100%;
    height: 100%;
    border-radius: 5px;
    border: 1px solid #DEDEDE;
    box-sizing: border-box;
    transform: translate(3.3%, 5.55%);
    z-index: 1;
}

.about .box3 .box-b .swiper-slide .l .pic {
    position: relative;
    border-radius: 5px;
    z-index: 2;
}

.about .box3 .box-b .swiper-slide .text-des {
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    line-height: 30px;
}

.about .box3 .box-b .swiper-slide .r {
    padding-top: 35px;
    width: 50%;
}

.about .box3 .box-b .swiper-slide .r .year {
    font-family: Rany-Bold;
    color: #F8F8F8;
    line-height: 1;
    text-stroke: 2px #CBCBCB;
    -webkit-text-stroke: 2px #CBCBCB;
}

.about .box3 .box-b .swiper-slide .r .text-box {
    margin-top: 50px;
    width: 631px;
    max-width: 100%;
}

.about .box3 .box-b .swiper-slide .r .text-title {
    font-weight: 400;
    font-size: 24px;
    color: #222222;
    line-height: 30px;
}

.about .box3 .box-b .swiper-slide .r .text-des {
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    line-height: 30px;
    margin-top: 20px;
}

.about .box3 .box-b .btns {
    position: absolute;
    display: flex;
    gap: 10px;
    top: 35px;
    right: 199px;
    z-index: 3;
}

.about .box3 .box-b .btns .btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 1px solid #DEDEDE;
    color: rgba(222, 222, 222, 1);
    transition: all 0.6s;
    background-color: RGBA(248, 248, 248, 1);
}

.about .box3 .box-b .btns .btn.swiper-button-disabled {
    opacity: .5;
    cursor: not-allowed;
}

.about .box3 .box-b .btns .btn:not(.swiper-button-disabled):hover {
    background: rgba(121, 23, 28, 1);
    color: #fff;
    border-color: rgba(121, 23, 28, 1);
}

.about .box4 {
    padding: 120px 0 160px;
    background-color: #fff;
}

.about .box4 .box-c {
    margin-top: 80px;
}

.about .box4 .box-c .list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 49px;
}

.about .box4 .box-c .list li {
    display: flex;
    align-items: center;
}

.about .box4 .box-c .list .li-box {
    position: relative;
    min-height: 57px;
    display: flex;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.about .box4 .box-c .list .li-box .text-box {
    flex: 1;
    margin: 0 5px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-align: center;
}

.about .box4 .box-c .list .li-box .year {
    font-family: Rany;
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    line-height: 1;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
    text-verflow: ellipsis;
}

.about .box4 .box-c .list li:hover .li-box .img img {
    filter: sepia(1200%) saturate(9995%) hue-rotate(409deg);
}

.about .box4 .box-c .list .li-box .text-title {
    font-size: 18px;
    font-weight: bold;
    color: #333333;
    line-height: 1.25;
    margin: 10px 0;
    transition: all 0.6s;
}

.about .box4 .box-c .list li:hover .li-box .text-title {
    color: rgba(121, 23, 28, 1);
}

.about .box4 .box-c .list .li-box .text-des {
    font-weight: 400;
    font-size: 14px;
    color: #666666;
    /* min-height: 14px; */
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
    text-verflow: ellipsis;
}

.about .box4 .box-c .list li .pic {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translate(105%, -50%);
    opacity: 0;
    visibility: hidden;
    max-width: 100%;
    z-index: 3;
}

.about .box4 .box-c .list li:nth-child(4n) .pic,
.about .box4 .box-c .list li:nth-child(4n-1) .pic {
    transform: translate(-105%, -50%);
}

.about .box4 .box-c .list li .pic img {
    display: block;
    max-width: 100%;
}

.about .box4 .box-c .list li:hover .pic {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 1440px) {
    .about .box3 .box-b .btns {
        right: 94px;
    }
}

@media (max-width: 1280px) {
    .about .box3 .box-b .btns {
        right: 68px;
    }
}

@media (max-width: 1199px) {
    .about .box4 .box-c .list {
        gap: 31px;
    }

    .about .box4 .box-c .list .li-box .text-title {
        font-size: 16px;
    }

    .about .box3 .box-b .swiper-slide .l {
        width: 45.8%;
    }

    .about .box3 .box-b .btns {
        right: 49px;
    }

    .about .box1 .box-t-l {
        width: 49%;
    }

    .about .box4,
    .about .box3,
    .about .box1 {
        padding: 90px 0;
    }

    .about .box1 .box-c {
        margin-top: 90px;
    }

    .about .box4 .box-c,
    .about .box3 .box-b,
    .about .box3 .box-c,
    .about .box1 .box-t-l .text-box {
        margin-top: 45px;
    }

    .about .box2 li {
        padding: 60px 0 90px;
    }

    .about .box3 .box-b .swiper-slide .r {
        padding-top: 20px;
    }

    .about .box3 .box-b .btns {
        top: 20px;
    }

    .about .box3 .box-b .btns .btn {
        width: 42px;
        height: 42px;
    }

    .about .box3 .box-b .swiper-slide .r .text-box {
        margin-top: 40px;
    }

    .about .box3 .box-b .swiper-slide .r .text-des {
        margin-top: 10px;
    }
}

@media (max-width: 1024px) {
    .about .box4 .box-c .list {
        grid-template-columns: repeat(3, 1fr);
    }

    .about .box4 .box-c .list li:nth-child(4n) .pic,
    .about .box4 .box-c .list li:nth-child(4n-1) .pic {
        transform: translate(105%, -50%);
    }
    .about .box4 .box-c .list li:nth-child(3n) .pic{
        transform: translate(-105%, -50%);
    }
    .about .box3 .box-b .swiper-slide .r .text-title {
        font-size: 22px;
    }

    .about .box1 .box-t {
        flex-direction: column;
    }

    .about .box1 .box-t-l {
        width: 100%;
    }

    .about .box1 .box-t-r {
        width: 100%;
        margin-top: 40px;
    }

    .about .box1 .box-t-r .list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .about .box1 .box-t-r .list li:not(:last-child) {
        margin-bottom: 0;
    }

    .about .box1 .box-t-r .list .li-r .bullet {
        width: 6px;
        height: 6px;
    }

    .about .box1 .box-t-r .list .li-r {
        font-size: 16px;
    }

    .about .box1 .box-t-r .list .li-r .bullet {
        margin-right: 10px;
    }

    .about .box1 .box-t-r .list li {
        padding-bottom: 14px;
    }

    .about .box4,
    .about .box3,
    .about .box1 {
        padding: 80px 0;
    }

    .about .box1 .box-c {
        margin-top: 80px;
    }

    .about .box4 .box-c,
    .about .box3 .box-b,
    .about .box3 .box-c,
    .about .box1 .box-t-l .text-box {
        margin-top: 40px;
    }

    .about .box2 li {
        padding: 55px 0 80px;
    }

    .about .box1 .box-c a {
        line-height: 60px;
    }

    .about .box1 .box-b {
        margin-top: -10px;
    }

    .about .box2 li .content {
        flex-direction: column;
    }

    .about .box2 .li-l {
        flex: none;
        margin-right: 0;
        width: 100%;
    }

    .about .box2 .li-r {
        width: 100%;
        margin-top: 20px;
    }

    .about .box2 li .title {
        margin-top: .7em;
        font-size: 22px;
    }
}

@media (max-width: 768px) {
    .about .box4 .box-c .list li:nth-child(3n) .pic{
        transform: translate(105%, -50%);
    }
    .about .box4 .box-c .list li:nth-child(2n) .pic{
        transform: translate(-105%, -50%);
    }
    .about .box4 .box-c .list {
        grid-template-columns: repeat(2, 1fr);
    }

    .about .box3 .box-b .swiper-slide .r .text-title {
        font-size: 20px;
    }

    .about .box3 .box-b .btns {
        top: auto;
        bottom: 29px;
        right: 0;
        transform: translateY(100%);
    }

    .about .box3 .box-b .swiper-slide .l::before {
        display: none;
    }

    .about .box3 .box-b .swiper-slide .r .text-box {
        margin-top: 10px;
    }

    .about .box3 .box-b .swiper-slide {
        flex-direction: column;
    }

    .about .box3 .box-b .swiper-slide .l {
        width: 100%;
    }

    .about .box3 .box-b .swiper-slide .r {
        width: 100%;
    }

    .about .box1 .box-c a {
        line-height: 50px;
        font-size: 16px;
    }

    .about .box1 .box-b {
        margin-top: 25px;
    }

    .about .box1 .box-t-r {
        margin-top: 30px;
    }

    .about .box4,
    .about .box3,
    .about .box1 {
        padding: 70px 0;
    }

    .about .box1 .box-c {
        margin-top: 50px;
    }

    .about .box4 .box-c,
    .about .box3 .box-b,
    .about .box3 .box-c,
    .about .box1 .box-t-l .text-box {
        margin-top: 30px;
    }

    .about .box2 li {
        padding: 45px 0 80px;
    }

    .about .box1 .box-t-r .list .li-l {
        font-size: 24px;
    }

    .about .box1 .box-t-r .list .li-r {
        justify-content: flex-end;
        width: auto;
    }

    .about .box1 .box-t-r .list {
        grid-template-columns: repeat(1, 1fr);
    }
}

@media (max-width: 500px) {
    .about .box4 .box-c .list .li-box .img img{
        width: 23px;
    }
    .about .box4 .box-c .list .li-box .text-title{
        font-size: 14px;
    }
    .about .box4 .box-c .list{
        gap: 20px;
    }
    .about .box3 .box-c .swiper-slide .date {
        font-size: 20px;
    }

    .about .box3 .box-c .swiper-slide .text-box {
        font-size: 16px;
    }

    .about .box3 .box-c .swiper-slide {
        width: 220px;
    }

    .about .box3 .box-b .btns {
        transform: translateY(160%);
    }

    .about .box3 .box-b .btns .btn {
        width: 36px;
        height: 36px;
    }

    .about .box2 li .title {
        font-size: 20px;
    }

    .about .box1 .box-c a {
        line-height: 45px;
    }

    .about .box1 .box-b {
        margin-top: 20px;
    }

    .about .box1 .box-t-r {
        margin-top: 25px;
    }

    .about .box4,
    .about .box3,
    .about .box1 {
        padding: 60px 0;
    }

    .about .box1 .box-c {
        margin-top: 40px;
    }

    .about .box4 .box-c,
    .about .box3 .box-b,
    .about .box3 .box-c,
    .about .box1 .box-t-l .text-box {
        margin-top: 25px;
    }

    .about .box2 li {
        padding: 30px 0 50px;
    }

    .about .box2 .li-r {
        margin-top: 10px;
    }
}