.top_1 {
    overflow: hidden;
    position: relative;
    background: url(../img/mc_top1_bg.png) no-repeat center center;
    background-size: cover;
}

.top_1_rt {
    width: 55%;
    top: 35%;
    right: 5%;
}

.top_1>.top_1_lf {
    width: 40%;
    height: auto;
    position: absolute;
    top: 26%;
    left: 21%;
    line-height: 2.5vw;
}

.top_1>.top_1_lf>h3 {
    font-size: 0.5rem;
    color: #2b2e3d;
}

.top_1>.top_1_lf>b {
    font-size: 0.5rem;
    font-weight: 600;
    color: #2b2e3d;
    margin-bottom: 7%;
    display: inline-block;
}

.top_1>.top_1_lf>p {
    font-size: 0.16rem;
    line-height: 1.5vw;
    color: #333;
}

.top_1>.top_1_lf>ul {
    width: 100%;
    margin-top: 7%;
}

.top_1>.top_1_lf>ul>li {
    border-radius: 50%;
    background-color: #2E3142;
    overflow: hidden;
    height: 110px;
    width: 110px;
    margin-right: 8%;
    float: left;
    transition: 2.5s;
    -webkit-transition: 2.5s;
    -moz-transition: 2.5s;
    -ms-transition: 2.5s;
    -o-transition: 2.5s;
}

.top_1>.top_1_lf>ul>li:first-child {
    transform: translateY(350%);
    -webkit-transform: translateY(350%);
    -moz-transform: translateY(350%);
    -ms-transform: translateY(350%);
    -o-transform: translateY(350%);
}

.top_1>.top_1_lf>ul>li:nth-child(2) {
    transform: translateY(550%);
    -webkit-transform: translateY(550%);
    -moz-transform: translateY(550%);
    -ms-transform: translateY(550%);
    -o-transform: translateY(550%);
}

.top_1>.top_1_lf>ul>li:last-child {
    transform: translateY(750%);
    -webkit-transform: translateY(750%);
    -moz-transform: translateY(750%);
    -ms-transform: translateY(750%);
    -o-transform: translateY(750%);
}

.active>.top_1_lf>ul>li:first-child {
    transform: translateY(0%);
    -webkit-transform: translateY(0%);
    -moz-transform: translateY(0%);
    -ms-transform: translateY(0%);
    -o-transform: translateY(0%);
}

.active>.top_1_lf>ul>li:nth-child(2) {
    transform: translateY(0%);
    -webkit-transform: translateY(0%);
    -moz-transform: translateY(0%);
    -ms-transform: translateY(0%);
    -o-transform: translateY(0%);
}

.active>.top_1_lf>ul>li:last-child {
    transform: translateY(0%);
    -webkit-transform: translateY(0%);
    -moz-transform: translateY(0%);
    -ms-transform: translateY(0%);
    -o-transform: translateY(0%);
}

.top_1>.top_1_lf>ul>li>span {
    display: block;
    width: 40%;
    height: 40%;
    margin: 20% auto 0% auto;
}

.top_1>.top_1_lf>ul>li>span>img {
    display: block;
    width: 100%;
}

.top_1>.top_1_lf>ul>li>p {
    font-size: 0.16rem;
    text-align: center;
    color: #fff;
    line-height: 1.2;
}

/* *****************************top2********************* */
.top_2 {
    position: relative;
    background: url(../img/mc_top2_bg.png) no-repeat center center;
    background-size: cover;
    overflow: hidden;
}

.top_2>.rt {
    position: absolute;
    top: 25%;
    right: 0%;
    width: 40%;
    z-index: 20;
}

.top_2>.rt>h3 {
    font-size: 0.5rem;
    color: #fff;
    margin-bottom: 9%;
    line-height: 2;
}

.top_2>.rt>h3>b {
    font-size: 0.5rem;
    color: #fff;
    background-color: #F16E1B;
    font-weight: 600;
    padding: 2% 4%;
    margin-right: 5%;
}

.top_2>.rt>p {
    font-size: 0.16rem;
    color: #fff;
    line-height: 2vw;
}

.top_2>.rt>ul {
    width: 100%;
    height: 10%;
    margin-top: 10%;
}

.top_2>.rt>ul>li {
    width: 23%;
    margin-right: 5%;
    padding: 1.3% 0;
    text-align: center;
    font-size: 0.2rem;
    float: left;
    border-radius: 25px;
    background-color: #2E3142;
    color: #fff;
    cursor: pointer;
    transition: .5s;
    -webkit-transition: .5s;
    -moz-transition: .5s;
    -ms-transition: .5s;
    -o-transition: .5s;
}

.top_2>.rt>ul>li:hover {
    background-color: #F16E1B;
}

.top_2>.big_ld {
    width: 60px;
    height: 60px;
    position: absolute;
    bottom: 17%;
    left: 47%;
    z-index: 10;
    text-align: center;
}

.top_2>.big_ld>.avatar {
    font-size: 0.16rem;
    color: #fff;
    line-height: 80px;
    cursor: pointer;
    height: 80px;
    width: 80px;
    top: -14%;
    left: -18%;
}

.top_2>.big_ld>div {
    width: 90%;
    height: 90%;
    position: absolute;
    top: 5%;
    left: 5%;
}

.top_2>img {
    position: absolute;
}

.top_2>img:nth-child(3) {
    width: 13%;
    top: 35%;
    left: 16%;
}

.top_2>img:nth-child(4) {
    width: 100%;
    top: 2%;
    left: 0%;
    opacity: 0;
    transition: 1.5s;
    -webkit-transition: 1.5s;
    -moz-transition: 1.5s;
    -ms-transition: 1.5s;
    -o-transition: 1.5s;
}

.active>img:nth-child(4) {
    opacity: 1;
}

.top_2>img:nth-child(5) {
    width: 22%;
    bottom: 0%;
    left: 40%;
}

/* *****************************top3********************* */
.top_3 {
    position: relative;
    background: url(../img/mc_top3_bg1.png) no-repeat center center;
    background-size: cover;
    overflow: hidden;
}

.top_3>.lf {
    width: 60%;
    position: absolute;
    top: 22%;
    left: 9%;
    z-index: 20;
}

.top_3>.lf>h3 {
    font-size: 0.5rem;
    color: #fff;
    margin-bottom: 6%;
    line-height: 2;
}

.top_3>.lf>h3>b {
    font-size: 0.5rem;
    color: #fff;
    background-color: #F16E1B;
    font-weight: 600;
    padding: 1.5% 2.5%;
    margin-left: 5%;
}

.top_3>.lf>p {
    font-size: 0.16rem;
    color: #fff;
    line-height: 2vw;
}

.top_3>.lf>ul {
    width: 100%;
    margin-top: 10%;
}

.top_3>.lf>ul>li {
    width: 20%;
    float: left;
    /* margin-right: 3%; */
    color: #fff;
}

.top_3>.lf>ul>li:nth-child(1) {
    margin-right: 3%;
}

/* .top_3>.lf>ul>li:nth-child(1),
.top_3>.lf>ul>li:nth-child(2) {
    margin: 0;
} */
.top_3>.lf>ul>li:nth-child(3) {
    width: 15%;
}

.top_3>.lf>ul>li>p {
    font-size: 0.16rem;
}

.top_3>.lf>ul>li>p>b {
    font-size: 0.6rem;
    color: #F16E1B;
    font-family: "PANGMENZHENGDAOBIAOTITI-1";
}

.top_3>.lf>ul>li>h4 {
    font-size: 0.2rem;
}

.top_3>img {
    position: absolute;
}

.top_3>img:nth-child(1) {
    width: 101%;
    top: -20%;
    left: -1%;
    opacity: 0;
    z-index: 10;
}

.active>img:nth-child(1) {
    animation-name: chuxian;
    animation-delay: 2s;
    animation-duration: 2s;
    animation-direction: alternate;
    animation-iteration-count: infinite;
}

body>div:nth-child(6).active {
    animation-name: beijing;
    animation-delay: 2s;
    animation-duration: 2s;
    animation-direction: alternate;
    animation-iteration-count: infinite;
}

.top_3>img:nth-child(2) {
    width: 14%;
    top: 14%;
    right: 15%;
}

/* ******************************top4******************** */
.top_4 {
    position: relative;
    background: url(../img/mc_top4_bg.png) no-repeat center center;
    background-size: cover;
    overflow: hidden;
}

.top_4>img {
    position: absolute;
}

.top_4>img:nth-child(6) {
    top: 28%;
    left: 13%;
    width: 20%;
    opacity: 0;
    z-index: 10;
}

.active>img:nth-child(6) {
    animation-name: fangda2;
    animation-delay: 1.2s;
    animation-duration: .02s;
    animation-iteration-count: initial;
    animation-fill-mode: forwards;
}

.top_4>img:nth-child(7) {
    width: 16%;
    top: 20%;
    left: 30%;
    z-index: 1;
}

.top_4>.rt {
    position: absolute;
    top: 20%;
    right: 0%;
    width: 50%;
    z-index: 20;
}

.top_4>.rt>h3 {
    font-size: 0.5rem;
    color: #2b2e3d;
    margin-bottom: 9%;
    line-height: 2;
}

.top_4>.rt>h3>b {
    font-size: 0.5rem;
    color: #fff;
    background-color: #F16E1B;
    font-weight: 600;
    padding: 2% 4%;
    margin-left: 5%;
}

.top_4>.rt>p {
    font-size: 0.16rem;
    color: #333;
    line-height: 2vw;
}

.top_4>.rt>ul {
    width: 100%;
    height: 10%;
    margin-top: 10%;
}

.top_4>.rt>ul>li {
    width: 23%;
    margin-right: 5%;
    padding: 1.3% 0;
    text-align: center;
    font-size: 0.2rem;
    float: left;
    border-radius: 25px;
    background-color: #2E3142;
    color: #fff;
}

.top_4>.rt>ul>li>span {
    display: block;
    float: left;
    margin-left: 15%;
    width: 20%;
    height: 100%;
}

.top_4>.rt>ul>li>span>img {
    display: block;
    height: 100%;
}

.top_4>.rt>ul>li>p {
    text-align: left;
    line-height: 1.5vw;
}

@media screen and (max-width:1600px) {
    .top_1>.top_1_lf>ul>li {
        height: 80px;
        width: 80px;
        margin-right: 4%;
    }
}

@media screen and (max-width:1440px) {
    .top_2>img:nth-child(3) {
        width: 15%;
        top: 30%;
        left: 15%;
    }

    .top_3>img:nth-child(1) {
        width: 101%;
        height: 60%;
        top: 4%;
    }

    .top_2>.big_ld>.avatar {
        font-size: 0.26rem;
    }
}

@media screen and (max-width:1600px) and (max-height:850px) {
    .top_2>img:nth-child(4) {
        top: 4%;
    }

    .top_4>img:nth-child(7) {
        top: 21%;
    }
}

@media screen and (max-width:1440px) and (max-height:850px) {
    .top_2>.big_ld {
        bottom: 13%;
    }

    .top_2>img:nth-child(4) {
        top: 4%;
    }

    .top_4>img:nth-child(7) {
        width: 16%;
        top: 22%;
    }
}

@media screen and (max-width:1440px) and (max-height:757px) {
    .top_2>img:nth-child(4) {
        top: 1%;
    }

    .top_4>img:nth-child(7) {
        top: 21%;
    }
}

@media screen and (max-width:1440px) and (max-height:720px) {
    .top_2>.big_ld {
        bottom: 16%;
    }

    .top_2>img:nth-child(4) {
        top: -2%;
    }

    .top_4>img:nth-child(7) {
        top: 20%;
    }

    .top_4>.rt>ul>li>p {
        line-height: 2vw;
    }
}

@media screen and (max-width:1280px) and (max-height:768px) {
    .top_2>img:nth-child(4) {
        top: 6%;
    }

    .top_2>.big_ld {
        bottom: 14%;
        left: 46%;
    }

    .top_3>img:nth-child(1) {
        top: 7%;
    }

    .top_4>.rt>ul>li>p {
        line-height: 2vw;
    }

    .top_2>.big_ld>.avatar {
        font-size: 0.26rem;
    }
}

@media screen and (max-width:1280px) and (max-height:740px) {
    .top_3>img:nth-child(2) {
        width: 14%;
        top: 18%;
    }
}

@media screen and (max-width:1280px) and (max-height:600px) {
    .top_9>.center>div {
        top: 10%;
    }

    .top_2>img:nth-child(4) {
        top: -4%;
    }
}

@media screen and (max-width:1024px) {
    .top_1>.top_1_lf>ul>li {
        height: 80px;
        width: 80px;
    }
}

@media screen and (max-width:768px) {
    .top_1>.top_1_lf>ul>li {
        height: 100px;
        width: 100px;
    }
}

@media screen and (max-width:450px) {

    .top_2,
    .top_3,
    .top_4 {
        height: 800px !important;
    }

    .top_1_rt {
        width: 100%;
        top: 47%;
        right: 21%;
    }

    .top_1>.top_1_lf {
        width: 90%;
        line-height: 4.5vw;
        top: 10%;
        left: 10%;
    }

    .top_1>.top_1_lf>ul>li>p {
        font-size: 0.7rem;
    }

    .top_1>.top_1_lf>h3 {
        font-size: 22px;
    }

    .top_1>.top_1_lf>b {
        font-size: 22px;
        margin-top: 3%;
    }

    .top_1>.top_1_lf>p {
        line-height: 5.5vw !important;
        font-size: 0.7rem;
    }

    .top_2>.rt>ul>li,
    .top_4>.rt>ul>li>p {
        font-size: 14px;
        line-height: 7vw;
    }

    .top_2>img:nth-child(5) {
        width: 67%;
        bottom: 0%;
        left: 29%;
    }

    .top_2>img:nth-child(3) {
        width: 26%;
        top: 40%;
        left: 10%;
    }

    .top_2>img:nth-child(4) {
        top: 35%;
    }

    .top_2>.rt {
        width: 90%;
        top: 15%;
    }

    .top_2>.rt>ul {
        width: 100%;
        height: 10%;
        margin: 0% 0 0 0%;
    }

    .top_2>.rt>ul>li {
        width: 28%;
    }

    .top_2>.rt>h3,
    .top_3>.lf>h3,
    .top_4>.rt>h3 {
        font-size: 22px;
    }

    .top_2>.rt>h3>b,
    .top_3>.lf>h3>b,
    .top_4>.rt>h3>b {
        font-size: 22px;
    }

    .top_2>.rt>p,
    .top_3>.lf>p,
    .top_4>.rt>p {
        line-height: 5vw;
        font-size: 0.7rem;
    }

    .top_3>img:nth-child(1) {
        width: 220%;
        top: 30%;
        left: -119%;
        opacity: 1;
        display: block;
        animation-name: chuxian;
        animation-delay: 2s;
        animation-duration: 2s;
        animation-direction: alternate;
        animation-iteration-count: infinite;
    }

    .top_3>img:nth-child(2) {
        top: 45%;
        left: 37%;
        width: 33%;
    }

    .top_3>.lf {
        width: 90%;
        top: 5%;
    }
    
    .top_3>.lf>ul>li>p {
        font-size: 14px;
    }

    .top_3>.lf>ul>li {
        width: 40%;
    }

    .top_4>img:nth-child(7) {
        width: 40%;
        top: 50%;
        left: 30%;
    }

    .top_4>.rt {
        top: 10%;
        left: 5%;
        width: 95%;
    }

    .top_4>.rt>ul>li {
        width: 32%;
        line-height: 7vw;
        margin-right: 1%;
    }

    .top_4>img:nth-child(6) {
        top: 54%;
        left: 6%;
        width: 90%;
        opacity: 1;
        z-index: 10;
    }
    .top_4>.rt>ul {
        margin-top: 5%;
    }
    .active>img:nth-child(6) {
        animation: none;
        -webkit-animation: none;
    }

    .top_2>.big_ld>.avatar {
        font-size: 0.7rem;
        color: #fff;
        line-height: 80px;
        cursor: pointer;
    }

    .top_3>.lf>ul>li>p>b {
        font-size: 1.5rem;
    }

    .top_3>.lf>ul>li>h4 {
        font-size: 0.7rem;
    }
}

@media screen and (max-width:736px) and (max-height:815px) {
    .top_2>.big_ld {
        bottom: 10%;
    }

    .top_2>img:nth-child(3) {
        width: 36%;
    }

    .top_2>img:nth-child(4) {
        width: 130%;
    }

    .top_3>img:nth-child(2) {
        top: 48%;
    }
}

@media screen and (max-width:736px) and (max-height:670px) {
    .top_2>.big_ld {
        bottom: 13%;
    }

    .top_2>img:nth-child(3) {
        width: 26%;
    }

    .top_2>img:nth-child(4) {
        top: 35%;
        width: 100%;
    }

    .top_3>img:nth-child(2) {
        top: 45%;
    }
}
@media screen and (max-width: 1750px){
.active>img:nth-child(2) {
    top: 14% !important;
    left: auto !important;
    right: 15% !important;
}
}
@media screen and (max-width:1440px) {
    .active>img:nth-child(2) {
        top: 28%  !important;
        left: 71%  !important;
    }
    .top_3>img:nth-child(1) {
        top: 18%  !important;
    }
}
@media screen and (max-width:1280px) {
    .active>img:nth-child(2) {
        top: 28% !important;
        left: 72% !important;
    }
    
    .top_3>img:nth-child(1) {
        top: 16% !important;
        left: 0% !important;
    }
    
    .top_6>.center>.center_rt {
        right: 7% !important;
    }
}
@media screen and (max-width:540px) {
    .active>img:nth-child(2) {
        top: 45% !important;
    left: 41% !important;
    }
    .top_4>.rt {
        top: 10% !important;
    }
    .top_2>.rt {
        width: 90% !important;
        top: 2% !important;
    }
    .top_4>.rt>ul>li>span {
        margin-left: 5%;
    }
}