li {
    margin: 0
}

ul {
    margin: 0
}
.en{
    color: #242A3B;
}
.add {
    height: 100%;
    overflow: hidden
}

nav {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    height: 80px;
    z-index: 2000
}

nav>div {
    width: 1180px;
    height: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center
}

nav>div img {
    display: inline-block;
    margin-right: 73px;
    width: 180px;
    height: 32px
}

nav>div>ul {
    display: flex;
    align-items: center;
    border-bottom: 1px solid transparent;
    text-align: center;
    width: calc(1180px - 180px - 73px);
    justify-content: space-around;
    list-style: none;
    padding: 0;
    transition: border .5s .2s
}

nav>div>ul>li {
    position: relative;
    padding: 15px 0;
    color: #fff;
    border-bottom: 5px solid transparent;
    font-family: PingFangSC-Semibold, PingFang SC;
    transition: all 1s;
    font-size: 14px;
    /* width: 180px */
}

nav>div>ul>li:hover {
    border-bottom: 5px solid #97daf0
}

nav>div>ul>li:hover>ul {
    visibility: visible !important;
    max-height: 400px;
    opacity: 1
}

nav>div>ul>li a {
    color: #fff;
    text-decoration: none;
    font-weight: 200
}

nav>div>ul>li a:hover {
    font-weight: 600
}

nav>div>ul>li span {
    color: #fff;
    text-decoration: none;
    font-weight: 200
}

nav>div>ul>li span:hover {
    font-weight: 600
}

nav>div>ul>li>ul {
    position: absolute;
    visibility: hidden;
    top: 60px;
    left: 0;
    flex-direction: column;
    width: 80px;
    max-height: 280px;
    opacity: 0;
    transition: all 1s;
    border: none;
    align-items: flex-start;
    list-style: none;
    padding: 0
}

nav>div>ul>li>ul li {
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    text-align: center;
    transition: border 1s;
    width: 100px
}

nav>div>ul>li>ul li:hover {
    border-bottom: 1px solid #97daf0;
    font-weight: 600 !important
}

nav>div>ul>li>ul li a {
    font-weight: 200;
    font-family: PingFang-SC-Regular, PingFang-SC
}

.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: calc(100% - 40px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 100;
    height: 30px;
    padding: 20px;
    background: rgba(36, 42, 59, 0.5)
}

.mobile-nav img:first-child {
    width: 132px;
    height: 23px
}

.mobile-nav img:last-child {
    width: 30px;
    height: 21px
}

@keyframes identifier {
    0% {
        transform: scale(.97)
    }

    100% {
        transform: scale(1)
    }
}

.head-img {
    position: relative;
    height: 695px
}

.head-img img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover
}

.head-img:before {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    content: "";
    background: rgba(36, 42, 59, 0.5);
    z-index: 10
}

.head-img>div {
    position: absolute;
    z-index: 11;
    font-family: PingFangSC-Semibold, PingFang SC;
    color: #ffffff;
    text-align: center;
    left: 50%;
    top: 51%;
    transform: translate(-50%, -50%)
}

.head-img>div p:first-child {
    font-size: 60px;
    font-weight: 600
}

.head-img>div p:last-child {
    font-size: 32px;
    font-weight: 300;
    letter-spacing: 6px;
    font-family: SFUIDisplay-Light, SFUIDisplay;
    color: #ffffff
}

footer {
    height: 70px;
    display: flex;
    align-items: center;
    padding: 0 100px;
    background: #242a3b
}

footer div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    margin: 0 auto;
    width: 1180px;
    height: 100%
}

footer div img {
    height: 30px
}

footer div p {
    font-size: 14px;
    font-family: PingFangSC-Light, PingFang SC;
    font-weight: 300;
    color: #b7b7b7;
    line-height: 20px
}

footer div p span {
    color: white
}

.call-us {
    padding: 100px;
    background: #eff3ff
}

.call-us .call-us-title {
    margin-bottom: 90px;
    text-align: center
}

.call-us .call-us-title P:first-child {
    font-size: 40px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #242a3b;
    line-height: 56px
}

.call-us .call-us-title P:last-child {
    font-size: 24px;
    font-family: SFUIDisplay-Light, SFUIDisplay;
    font-weight: 300;
    color: #97daf0;
    line-height: 29px;
    letter-spacing: 5px
}

.call-us .company-message {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    width: 1180px;
    margin: 0 auto;
    margin-bottom: 10px
}

.call-us .company-message>img {
    display: block;
    width: 371px;
    height: 284px
}

.call-us .company-message-detaile {
    width: calc(1180px - 371px - 50px)
}

.call-us .company-message-detaile>p:first-child {
    font-size: 20px;
    font-weight: 500;
    color: #242a3b;
    line-height: 28px;
    margin: 14px 0 30px 0
}

.call-us .company-message-detaile .company-messgae-call {
    display: flex;
    flex-wrap: wrap
}

.call-us .company-message-detaile .company-messgae-call a {
    color: #242a3b;
    text-decoration: none
}

.call-us .company-message-detaile .company-messgae-call div {
    display: flex;
    align-items: center;
    margin-right: 25px;
    margin-bottom: 25px
}

.call-us .company-message-detaile .company-messgae-call div a:hover {
    color: #99daf0
}

.call-us .company-message-detaile .company-messgae-call div img {
    display: block;
    width: 23px;
    height: 23px;
    margin-right: 25px
}

.call-us .company-message-detaile .company-messgae-call div span {
    font-size: 16px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #242a3b;
    line-height: 22px
}

.call-us .company-wx {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 5px
}

.call-us .company-wx>div {
    display: flex;
    align-items: center;
    flex-wrap: wrap
}

.call-us .company-wx>div img {
    display: block;
    width: 87px;
    height: 87px;
    margin-right: 18px
}

.call-us .company-wx>div>div p:nth-child(1) {
    font-size: 18px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #242a3b;
    line-height: 25px;
    margin-bottom: 12px
}

.call-us .company-wx>div>div p:nth-child(2) {
    font-size: 16px;
    font-family: PingFangSC-Light, PingFang SC;
    font-weight: 300;
    color: #242a3b;
    line-height: 22px
}

.call-us .company-wx>div>div p:nth-child(3) {
    font-size: 16px;
    font-family: PingFangSC-Light, PingFang SC;
    font-weight: 300;
    color: #242a3b;
    line-height: 22px
}

.mib-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000
}

.mib-nav .top {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all .5s;
    background: none
}

.mib-nav .top img:first-child {
    width: 132px;
    height: 23px
}

.mib-nav .top img:last-child {
    width: 30px;
    height: 21px
}

.mib-nav .list {
    display: none;
    background: white;
    overflow: scroll;
    cursor: pointer
}

.mib-nav .list a {
    font-size: 15px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #242a3b !important;
    text-decoration: none;
    width: 100px
}

.mib-nav .list span {
    font-size: 15px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #242a3b !important;
    text-decoration: none;
    margin-left: -4px
}

.mib-nav .list>div {
    display: flex;
    align-items: center;
    padding: 13px 0;
    border-bottom: 1px solid #d0d6dc
}

.mib-nav .list>div img {
    display: inline-block;
    width: 7px;
    height: 7px;
    margin-right: 21px;
    margin-left: 30px
}

.mib-nav .list .has-child {
    display: flex;
    flex-direction: column;
    align-items: baseline
}

.mib-nav .list .has-child ul {
    padding: 0;
    display: none;
    margin-left: 54px;
    margin-top: 10px
}

.mib-nav .list .has-child ul li {
    list-style: none;
    padding: 5px
}

.mib-nav .list .has-child ul li a {
    color: #636873;
    font-size: 13px
}

@media only screen and (min-device-width:768px) {
    .mib-nav {
        display: none
    }
}

@media only screen and (max-device-width:768px) {
    .sq {
        display: block;
        width: 30px;
        height: 21px;
        margin: 0
    }

    nav {
        display: none
    }

    .head-img>div p:first-child {
        font-size: 40px
    }

    .call-us {
        margin-top: 50px;
        width: 100vw;
        padding: 80px 0
    }

    .call-us .company-message {
        margin-top: -77px;
        width: calc(100vw - 40px)
    }

    .call-us .company-message img {
        width: 100%;
        margin-bottom: 10px
    }

    footer {
        padding: 20px;
        height: auto;
        width: calc(100vw - 40px);
        width: auto
    }

    footer img {
        display: block;
        margin: 10px auto
    }

    footer>div {
        width: calc(100vw - 40px)
    }
}