.demand .banner .tit h2 span{
    font-size: 24px;
    color: #4D5567;
    line-height: 32px;
    text-align: left;
    font-style: normal;
}
.demand {
    margin-top: 80px;
}
.demand .banner {
    background: #fff;
    padding: 90px 0;
    margin-bottom: 0;
    overflow: hidden;
}
.demand .talk{
    font-size: 14px;
    color: #4D5567;
    line-height: 19px;
    text-align: right;
    font-style: normal;
    border: 1px solid #4D5567;

}
.demand .talk:hover{
    color: #0177ff;
    border-color: #0177ff;
    background: #FFF;
}
.demand .banner .tit P{
    font-size: 56px;
    color: #171922;
    line-height: 60px;
    margin: 0 0 20px;
}
.demand .banner .intro{
    position: relative;
    left: inherit;
    right: inherit;
    bottom: inherit;
    margin-left: 20%;
    margin-right: 20%;
}
.demand .banner .intro h3 {
    font-weight: bold;
    font-size: 36px;
    color: #171922;
    line-height: 47px;
}
.demand .banner .tit {
    position: relative;
    z-index: 2;
    padding-bottom: 90px;
    border-bottom:  1px solid #d8d8d8;
}
.demand .banner .ani {
    position: absolute;
    left: 0;
    right: 0;
    top: -50px;
    z-index: 0;
    width: 100%;
    height: 500px;
}
.demand .ani1, .demand .ani2, .demand .ani3, .demand .ani4 {
    position: absolute;
    display: flex;
    /*width: 348px;*/
    width: 18VW;
    /*height: 176px;*/
    height: 16vh;
    flex-direction: column;
}

.demand .ani3, .demand .ani4 {
    flex-direction: column-reverse;
}

.demand .ani1:before, .demand .ani2:before, .demand .ani3:before, .demand .ani4:before {
    content: '';
    width: 18VW;
    height: 16vh;
    background: no-repeat 50%;
    background-size:contain;
}

.demand .ani1 {
    top: 20px;
    left: 50px;
    animation: moveToCenter1 2s ease-in-out forwards;
}

.demand .ani2 {
    top: 20px;
    right: 50px;
    align-items: flex-end;
    animation: moveToCenter2 2s ease-in-out forwards;
}

.demand .ani3 {
    right: 50px;
    bottom: 20px;
    align-items: flex-end;
    animation: moveToCenter3 2s ease-in-out forwards;
}

.demand .ani4 {
    left: 50px;
    bottom: 20px;
    animation: moveToCenter4 2s ease-in-out forwards;
}

/* 定义动画 */
@keyframes moveToCenter1 {
    from {
        top: -1000px;
        left: -1000px;
    }
    to {
        top: 20px;
        left: 50px;
        /*transform: translate(-50%, -50%);*/
    }
}
@keyframes moveToCenter2 {
    from {
        top: -1000px;
        right: -1000px;
    }
    to {
        top: 20px;
        right: 50px;
        /*transform: translate(-50%, -50%);*/
    }
}
@keyframes moveToCenter3 {
    from {
        bottom: -1000px;
        left: -1000px;
    }
    to {
        right: 50px;
        bottom: 20px;
        /*transform: translate(-50%, -50%);*/
    }
}
@keyframes moveToCenter4 {
    from {
        bottom: -1000px;
        right: -1000px;
    }
    to {
        left: 50px;
        bottom: 20px;
        /*transform: translate(-50%, -50%);*/
    }
}

.demand .ani1.active:before {
    animation-name: ani101;
    animation-duration: 3s;
    animation-timing-function: linear;
    animation-delay: 3s;
    animation-iteration-count: infinite
}
.demand .ani2.active:before {
    animation-name: ani101;
    animation-duration: 4s;
    animation-timing-function: linear;
    animation-delay: 3s;
    animation-iteration-count: infinite;
}
.demand .ani3.active:before {
    animation-name: ani101;
    animation-duration: 4s;
    animation-timing-function: linear;
    animation-delay: 3s;
    animation-iteration-count: infinite;
}
.demand .ani4.active:before {
    animation-name: ani101;
    animation-duration: 5s;
    animation-timing-function: linear;
    animation-delay: 3s;
    animation-iteration-count: infinite;
}

@keyframes ani101 {
    0% {
        transform: translate3d(0, 0, 0);
    }
    20% {
        transform: translate3d(10px, -10px, 0);
    }
    40% {
        transform: translate3d(0, 0, 0);
    }
    60% {
        transform: translate3d(10px, -10px, 0);
    }
    100% {
        transform: translate3d(0, 0, 0);
    }
}
@keyframes ani201 {
    0% {
        transform: translate3d(0, 0, 0);
    }

    20% {
        transform: translate3d(30px, -30px, 0);
    }

    30% {

        transform: rotate(5deg) translate3d(30px, -30px, 0);
    }

    35% {

        transform: rotate(-5deg) translate3d(30px, -30px, 0);
    }

    40% {

        transform: rotate(5deg) translate3d(30px, -30px, 0);
    }
    45% {

        transform: rotate(-5deg) translate3d(30px, -30px, 0);
    }

    50% {

        transform: rotate(5deg) translate3d(30px, -30px, 0);
    }

    60% {
        transform: rotate(-5deg) translate3d(0, 0, 0);
    }

}

@keyframes ani301 {
    0% {
        transform: translate3d(0, 0, 0);
    }

    10% {
        transform: translate3d(30px, 0px, 0);
    }

    20% {
        transform: translate3d(30px, 30px, 0);
    }

    40% {
        transform: translate3d(0px, 30px, 0);
    }

    50% {
        transform: translate3d(0, 0, 0);
    }
}

@keyframes ani401 {
    0% {
        transform: translate3d(0, 0, 0);
    }

    20% {
        transform: translate3d(30px, -30px, 0);
    }

    30% {

        transform: rotate(5deg) translate3d(30px, -30px, 0);
    }

    35% {

        transform: rotate(-5deg) translate3d(30px, -30px, 0);
    }

    40% {

        transform: rotate(5deg) translate3d(30px, -30px, 0);
    }
    45% {

        transform: rotate(-5deg) translate3d(30px, -30px, 0);
    }

    50% {

        transform: rotate(5deg) translate3d(30px, -30px, 0);
    }

    60% {
        transform: rotate(-5deg) translate3d(0, 0, 0);
    }

}

.intro-bg{
    width: 100%;
    height: 325px;
    background: #F7F9FD;
    position: absolute;
    left: 0;
    bottom: 0;
}
.demand .howto .title{
   margin-bottom: 80px;
}
.demand .intro .info {
    margin-bottom: 40px;
}
.demand .intro .info p{
    padding-bottom:0;
    font-size: 14px;
    color: #4D5567;
    line-height: 24px;
}
.demand .howto {
    background: none;
    padding-top: 90px;
}
.demand .howto .item{
    position: relative;
    margin-bottom: 0;
    padding-top: 0;
}
.demand .howto .item .arrow{
    position: absolute;
    width: 72px;
    height: 81px;
}
.demand .howto .item .arrow1 {
    left: 50%;
    bottom:0;
}
.demand .howto .item .arrow2 {
    left: 55%;
    top: 80px;
}
.demand .howto .item .pos-2{
    position: absolute;
    left: 0;
    top: 0;
    z-index: 1;
}
.demand .howto .item .txt{
    align-items: inherit !important;
}
.pos-info-2{
    position: absolute;
    left: 50px;
    top: 50px;
    z-index: 2;
}
.demand .banner .hd {
    padding-bottom: 0;
}
.demand .pos-ab{
    position: absolute;
    left: 50px;
    top: 50px;
    z-index: 1;
}
.demand .pos-ab .txt-wrap {
   width: 25%;
}
.demand .txt-wrap p {
    font-size: 14px;
    color: #4D5567;
    line-height: 32px;
}
.demand .pos-3 img{
    float:right;
    margin-top : 180px;
}
.demand .pos-info-3 {
    position: absolute;
    right: 0;
    top: 240px;
    z-index: 2;
    padding-left: 80px;
}
.demand .howto .txt div{
    max-width: 88%;
}
.tab-wrap{

}
.tab-head{
    display:flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 10%;
    border-bottom: 2px solid #D2D6DF;
    margin-bottom: 100px;
}
.tab-head div{
    display:flex;
    justify-content: center;
    align-items: center;
    height: 44px;
    line-height: 44px;
    width: 30%;
    font-size: 16px;
    color: #1B202B;
    cursor: pointer;
}
.tab-head div:hover{
    background: #E1E7F4;
    border-radius: 34px;
}
.tab-head div.active{
    border-radius: 34px;
    background: #E1E7F4;
}
.demand .method{
    padding: 60px 0;
    background: #F7F9FD;
}
.tab-body .tab-item{
    display: none;
    padding: 0 30px 0;
    width: 100%;
    /*justify-content: space-around;*/
    align-items: center;
}
.tab-body .tab-item.active{
    display: flex;
}
.tab-body .tab-item img{
    display: block;
    width: 550px;
    height:360px;
    margin-left: 30px;
}
.tab-body .tab-item .txt{
    margin-left: 40px;
}
.tab-body .tab-item .txt h4{
    font-size: 24px;
    color: #1B202B;
    line-height: 42px;
    margin-bottom: 30px;
}
.tab-body .tab-item .txt p{
    font-size: 14px;
    color: #4D5567;
    line-height: 28px;
}
.demand .btn-wrap{
    margin-top: 80px;
}
.m-show{
    display: none;
}
.pc-show{
    display: block;
}

@media (max-width: 1020px) {
    .ani{
        display: none;
    }
    .demand .banner .intro{
        margin-left: 5%;
        margin-right: 5%;
    }
    .intro-bg{
        height:176px;
    }
    .demand .btn-wrap{
        margin-top: 40px;
    }
    .demand .banner{
        padding: 40px 0
    }
    .demand .integration .banner .tit{
        padding-bottom: 45px;
        margin-bottom: 20px;
    }
    .demand .integration .banner .tit h2 span{
        font-size: 26px !important;
    }
    .demand .banner .tit P{
        font-size: 26px;
        line-height: 40px;
        margin-bottom: 0;
    }
    .demand .howto{
        padding-top: 40px;
    }
    .m-show{
        display: block;
    }
    .pc-show{
        display: none;
    }
    .demand .howto .title{
        margin-bottom: 30px;
    }
    .demand .pos-ab{
        top: 20px;
        left: 30px;
    }
    .howto .item .img{
        margin: 0 2% 16px;
    }
    .demand .howto .txt div{
        width: auto;
    }
    .howto .txt h4{
        font-size: 24px;
    }
    .demand .txt-wrap p {
        font-size: 14px;
        color: #4D5567;
        line-height: 24px;
    }
    .demand .howto .item .arrow{
        width:35px;
        height: 40px;
    }
    .howto .item{
        padding-bottom: 0;
    }
    .demand .howto .item .pos-2{
        position:relative;
    }
    .demand .banner .intro h3{
        font-size: 24px;
    }
    .demand .pos-info-3{
        position: absolute;
        /*top: 440px;*/
        top: 80px;
        left: 15px;
        padding-left: 30px;
    }
    .demand .pos-3 img{
        margin-top:60px;
    }
    .demand .howto .item .arrow2{
        top: 82vw;
    }
    .pos-info-2{
        left: 30px;
        top: 30px;
    }
    .pos-info-2 .txt{
        width: 92%;
    }
    .tab-head{
        margin-bottom: 20px;
    }
    .tab-body .tab-item img{
        width: auto;
        height: auto;
    }
    .tab-body .tab-item .txt{
        margin-left: 20px;
    }
    .tab-body .tab-item .txt h4{
        margin-top: 20px;
        font-size: 20px;
        margin-bottom: 10px;
    }
    .tab-body .tab-item .txt p{
        font-size: 16px;
        line-height:24px;
        margin-bottom: 0;
    }
    .demand .integration .method .title{
        margin-bottom: 0;
    }
    .demand .title h3{
        font-size: 22px;
    }
    .tab-head div{
        height: 42px;
        line-height: 42px;
        font-size: 20px;
    }
}
@media (min-width: 1021px) and ( max-width: 1280px ) {
    .pos-2 img, .pos-info-2{
        width: 45vw;
    }
}
.demand .ani1:before {
    background-image: url(../images/product/demand/b1.png);
}

.demand .ani2:before {
    background-image: url(../images/product/demand/b2.png);
}

.demand .ani4:before {
    background-image: url(../images/product/demand/b3.png);
}

.demand .ani3:before {
    background-image: url(../images/product/demand/b4.png);
}