.main {
    padding-top: 90px;
    padding-bottom: 80px;
}

.knowledge1 {
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
}

.knowledge1 ul li::marker {
    color: rgba(255, 255, 255, 0);
}

.knowledge1 .txt {
    -webkit-flex: 1;
    flex: 1;
    margin-right: 80px;
}

.knowledge1 .txt h1 {
    font-size: 34px;
    color: #2e2e2e;
    line-height: 1;
    font-weight: 700;
}

.knowledge1 .txt p {
    color: #666;
    font-size: 18px;
    line-height: 2.2;
    margin: 20px 0 0;
}

.knowledge1 .txt p strong {
    color: #333;
}

.knowledge1 ul {
    width: 50%;
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: space-between;
    justify-content: space-between;
}

.knowledge1 ul li {
    width: calc(50% - 10px);
}

.knowledge1 ul li p {
    text-align: center;
}

.knowledge1 ul li:last-child {
    margin-top: 30px;
}

.Insight_customize {
    margin: 50px 0;
}

.Insight_customize .tit {
    display: flex;
    flex-wrap: wrap;
    /*margin: 50px 0 20px;*/
}

.Insight_customize .tit .pic-block {
    /*width: 50%;*/
    text-align: center;
      display: flex;
    align-items: end;
}

.Insight_customize .tit .pic-block img {
    max-width: 100%;
    height: auto;
    width: 100%;
}

.Insight_customize .tit .block-text {
    /*width: 50%;*/
    padding-top: 35px;
}

.Insight_customize .tit .block-text .title {
    font-size: 28px;
    color: var(--tit-color);
    line-height: 1;
    font-weight: 700;
}

.Insight_customize .tit .block-text .text {
    font-size: 18px;
    color: #666;
    line-height: 2.2;
    margin: 20px 0;
}

.Insight_customize .tit .block-text .more a {
    background: #f79a0f;
    display: inline-block;
    padding: 13px 55px;
    color: #fff;
    border-radius: 30px;
    font-size: 16px;
    letter-spacing: 3px;
    font-weight: 600;
    border: 1px solid #fff;
}

.Insight_customize .tit .block-text .more a:hover {
    background: none;
    border-color: #f79a0f;
    color: #f79a0f;
}

.Insight_customize h3 {
    font-size: 34px;
    color: var(--tit-color);
    line-height: 1;
    font-weight: 700;
    text-align: center;
}


.Insight_customize ul {
    display: flex;
    flex-wrap: wrap;
}

.Insight_customize ul li {
    width: 50%;
    padding: 0 20px;
    margin: 20px 0;
}

.Insight_customize ul li .box {
    box-shadow: 1px 1px 5px #bbb;
    height: 100%;
}

.Insight_customize ul li .box .pic {
}

.Insight_customize ul li .box .pic img {
    width: 100%;
    height: auto;
}

.Insight_customize ul li .box .text {
    padding: 20px;
}

.Insight_customize ul li .box .text p {
    font-size: 18px;
}

.knowledge2 {
    padding: 120px 0;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
}

.knowledge2 .pic {
    width: 580px;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    position: relative;
}

.knowledge2 .pic::after {
    content: "";
    background: #F8F8F8;
    position: absolute;
    left: 0;
    top: -30px;
    bottom: -30px;
    width: 430px;
}

.knowledge2 .pic h3 {
    writing-mode: vertical-rl;
    padding: 0 25px;
    font-size: 75px;
    color: #eaeaea;
    font-weight: bold;
    letter-spacing: 10px;
    text-align: center;
    position: relative;
    z-index: 10;
}

.knowledge2 .pic dl {
    width: 430px;
    position: relative;
    z-index: 10;
}

.knowledge2 .pic dl dd {
    margin-top: 10px;
}

.knowledge2 .txt {
    -webkit-flex: 1;
    flex: 1;
    margin-left: 80px;
}

.knowledge2 .txt ul {
}

.knowledge2 .txt ul li {
    display: -webkit-flex;
    display: flex;
}

.knowledge2 .txt ul li + li {
    margin-top: 15px;
}

.knowledge2 .txt ul li em {
    width: 43px;
    height: 43px;
    line-height: 43px;
    text-align: center;
    background: #212121;
    font-size: 20px;
    color: #fff;
    font-weight: bold;
    display: block;
}

.knowledge2 .txt ul li .t {
    -webkit-flex: 1;
    flex: 1;
    margin-left: 27px;
}

.knowledge2 .txt ul li .t h5 {
    font-size: 24px;
    color: #2e2e2e;
    line-height: 43px;
    font-weight: 700;
}

.knowledge2 .txt ul li .t p {
    color: #666;
    font-size: 18px;
    line-height: 2;
    margin: 5px 0 0;
}

.knowledge3 {
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
}

.knowledge3 .txt {
    -webkit-flex: 1;
    flex: 1;
    margin-right: 150px;
}

.knowledge3 .txt h3 {
    font-size: 34px;
    color: #2e2e2e;
    line-height: 1.5;
    font-weight: 700;
}

.knowledge3 .txt p {
    color: #666;
    font-size: 18px;
    line-height: 2.2;
    margin: 20px 0 0;
}

.knowledge3 .txt p strong {
    color: #333;
}

.knowledge3 .pic {
    width: 44.7%;
    overflow: hidden;
}

.knowledge3 .pic a{
    position: relative;
    display: block !important;
}

.knowledge3 .pic a .v-play{
    position: absolute;
    top: calc(20% - 35px);
    left: calc(50% - 35px);
}

.knowledge3 .pic a .v-play img{
    width: 70px;
    margin: 0;
}

.knowledge3 .pic a:hover .v-play img{
    transform: scale(1.1);
}

.knowledge3 .pic img {
    border-radius: 30px 30px 30px 0;
    margin-bottom: 15px;
}

.knowledge4 {
    padding: 100px 0;
    background: url(../images/ibg9.jpg) no-repeat center;
}

.knowledge4 .wp {
    border-bottom: 1px solid #ccc;
    padding: 50px 0;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
}

.knowledge4 .txt {
    -webkit-flex: 1;
    flex: 1;
    margin-right: 160px;
}

.knowledge4 .txt h3 {
    font-size: 30px;
    /*color: #333;*/
    color: #fff;
    line-height: 1;
    font-weight: 700;
}

.knowledge4 .txt p {
    /*color: #666;*/
    color: #fff;
    font-size: 18px;
    line-height: 1.8;
    margin: 20px 0 0;
}

.knowledge4 .more {
    width: 238px;
    position: relative;
}

@keyframes scale2 {
    from {
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
    }

    50% {
        top: -10px;
        right: -10px;
        bottom: -10px;
        left: -10px;
    }

    to {
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
    }
}

.knowledge4 .more::after {
    content: "";
    position: absolute;
    border-radius: 35px;
    background: rgba(0, 0, 21, 0.15);
    animation: scale2 1.5s linear infinite;
}

.knowledge4 .more a {
    color: #fff;
    font-size: 18px;
    width: 100%;
    height: 56px;
    line-height: 56px;
    border-radius: 35px;
    background: var(--btn-bg);
    display: inline-block;
    text-align: center;
    position: relative;
    z-index: 20;
}

.knowledge4 .more a:hover {
    background: var(--btn-bg-hover);
}

@media screen and (max-width: 1550px) {
    .knowledge2 .txt ul li em {
        width: 40px;
        height: 40px;
        line-height: 40px;
        font-size: 18px;
    }

    .knowledge2 .txt ul li .t h5 {
        font-size: 22px;
        line-height: 40px;
    }

    .knowledge2 .txt ul li .t p {
        line-height: 1.6;
        margin: 2px 0 0;
    }
}

@media screen and (max-width: 1400px) {
    .main {
        padding-top: 70px;
        padding-bottom: 60px;
    }

    .knowledge1 .txt h1,
    .knowledge3 .txt h3 {
        font-size: 32px;
    }

    .knowledge2 .txt {
        margin-left: 60px;
    }

    .knowledge2 .txt ul li em {
        width: 36px;
        height: 36px;
        line-height: 36px;
        font-size: 17px;
    }

    .knowledge2 .txt ul li .t h5 {
        font-size: 20px;
        line-height: 36px;
    }

    .knowledge2 .txt ul li .t p {
        line-height: 1.5;
    }

    .knowledge3 .txt {
        margin-right: 80px;
    }

    .knowledge4 {
        padding: 80px 0;
    }

    .knowledge4 .wp {
        padding: 40px 0;
    }
}

@media screen and (max-width: 1280px) {
    /*.knowledge1 .txt p:nth-child(2){*/
    /*	overflow-y: auto;*/
    /*  height: 315px;*/
    /*}*/
    .knowledge1 {
        -webkit-flex-direction: column;
        flex-direction: column;
    }

    .knowledge1 .txt {
        margin-right: 0;
    }

    .knowledge1 ul {
        width: 100%;
        margin: 20px 0 0;
    }

    .knowledge1 ul li:last-child {
        margin-top: 0;
    }

    .knowledge2 {
        flex-direction: column;
    }

    .knowledge2 .pic {
        width: 100%;
        margin-bottom: 100px;
        flex-direction: column;
    }

    .knowledge2 .pic h3 {
        writing-mode: horizontal-tb;
    }

    .knowledge2 .pic dl {
        display: flex;
        width: 100%;
    }

    .knowledge2 .pic::after {
        width: 100%;
    }

    .knowledge3 {
        -webkit-flex-direction: column;
        flex-direction: column;
    }

    .knowledge3 .txt {
        margin-right: 0;
        margin-bottom: 0;
    }

    .knowledge3 .txt h3 {
        text-align: center;
    }

    .knowledge3 .pic {
        width: 100%;
        margin: 20px 0 0;
    }

    .knowledge3 .pic img {
        max-width: 100%;
        width: 100%;
        margin-bottom: 15px;
    }

}

@media screen and (max-width: 992px) {
    .main {
        padding-top: 30px;
        padding-bottom: 20px;
    }

    .Insight_customize ul li {
        width: 50%;
    }

    .Insight_customize .tit .pic-block {
        width: 100%;
        text-align: center;
    }

    .Insight_customize .tit .block-text {
        width: 100%;
        /*padding-left: 0;*/
        margin-top: 10px;
    }
}

@media screen and (max-width: 768px) {
    .main {
        padding-top: 20px;
    }

    .Insight_customize ul li {
        width: 100%;
    }

    .knowledge1 .txt h1,
    .knowledge3 .txt h3 {
        font-size: 28px;
    }

    .knowledge1 {
        -webkit-flex-direction: column;
        flex-direction: column;
    }

    .knowledge1 .txt {
        margin-right: 0;
    }

    .knowledge1 .txt h1 {
        text-align: center;
    }

    .knowledge1 .txt p {
        font-size: 16px;
        line-height: 1.4;
        margin: 15px 0 0;
    }

    .knowledge1 .txt p:nth-child(2) {
        height: auto;
    }

    .knowledge1 ul {
        width: 100%;
        margin: 20px 0 0;
    }

    .knowledge1 ul li:last-child {
        margin-top: 0;
    }

    .Insight_customize h3{
        font-size: 30px;
    }

    .knowledge2 {
        padding: 30px 0;
        -webkit-flex-direction: column;
        flex-direction: column;
    }

    .knowledge2 .pic {
        width: 100%;
        -webkit-flex-direction: column;
        flex-direction: column;
        margin-bottom: 0;
    }

    .knowledge2 .pic::after {
        display: none;
    }

    .knowledge2 .pic h3 {
        writing-mode: horizontal-tb;
        padding: 0;
        font-size: 30px;
        color: #2e2e2e;
        letter-spacing: 0;
        text-align: center;
    }

    .knowledge2 .pic dl {
        width: 100%;
        margin: 20px 0 0;
        position: relative;
        z-index: 10;
        display: -webkit-flex;
        display: flex;
        -webkit-justify-content: space-between;
        justify-content: space-between;
    }

    .knowledge2 .pic dl dd {
        width: 48%;
    }

    .knowledge2 .pic dl dd {
        margin-top: 0;
    }

    .knowledge2 .txt {
        width: 100%;
        margin: 20px 0 0;
    }

    .knowledge2 .txt ul li + li {
        margin-top: 15px;
    }

    .knowledge2 .txt ul li em {
        width: 30px;
        height: 30px;
        line-height: 30px;
        font-size: 16px;
    }

    .knowledge2 .txt ul li .t {
        margin-left: 20px;
    }

    .knowledge2 .txt ul li .t h5 {
        font-size: 18px;
        line-height: 30px;
    }

    .knowledge2 .txt ul li .t p {
        font-size: 16px;
        line-height: 1.4;
    }

    .knowledge3 {
        -webkit-flex-direction: column;
        flex-direction: column;
    }

    .knowledge3 .txt {
        margin-right: 0;
        margin-bottom: 0;
    }

    .knowledge3 .txt h3 {
        text-align: center;
    }

    .knowledge3 .txt p {
        font-size: 16px;
        line-height: 1.4;
        margin: 15px 0 0;
    }

    .knowledge3 .pic {
        width: 100%;
        margin: 20px 0 0;
    }

    .knowledge3 .pic img {
        margin-bottom: 15px;
    }

    .knowledge4 {
        padding: 30px 0;
    }

    .knowledge4 .wp {
        padding: 0 10px;
        -webkit-flex-direction: column;
        flex-direction: column;
        border-bottom: none;
    }

    .knowledge4 .txt {
        -webkit-flex: 1;
        flex: 1;
        margin-right: 0;
        width: 100%;
        text-align: center;
    }

    .knowledge4 .txt h3 {
        font-size: 24px;
    }

    .knowledge4 .txt p {
        font-size: 16px;
        line-height: 1.4;
        margin: 15px 0 0;
    }

    .knowledge4 .more {
        width: 200px;
        margin: 20px 0 0;
    }

    .knowledge4 .more a {
        font-size: 16px;
        height: 48px;
        line-height: 48px;
    }
}

@media screen and (max-width: 600px) {

    .knowledge1 .txt h1,
    .knowledge3 .txt h3 {
        font-size: 25px;
    }
}


@media screen and (max-width: 480px) {

    .knowledge1 .txt h1,
    .knowledge3 .txt h3 {
        font-size: 24px;
    }
}