* {
    margin: 0;
    padding: 0;
    box-sizing: border-box
}

body {
    font-family: Arial,Helvetica,sans-serif;
    color: #333;
    background-color: #fff;
    line-height: 1.5rem
}

a {
    text-decoration: none;
    color: inherit
}

ul {
    list-style: none
}

/*header**/

.nav-header-wrap {
    height: 4rem;
    position: fixed;
    top: 0;
    transition: all .3s linear;
    width: 100%;
    z-index: 100;
    opacity: 1;
    background-color: rgba(0,0,0,.2)
}

.nav-header-wrap.sticky {
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,.08)
}

.nav-header-wrap.sticky .nav-titles a:link,.nav-header-wrap.sticky .nav-titles a:visited,.nav-header-wrap.sticky .nav-titles-wrap a {
    color: #333
}

.nav-header-wrap .nav-titles a:link,.nav-header-wrap .nav-titles a:visited,.nav-header-wrap .nav-titles-wrap a {
    color: #fff;
    transition: color .3s linear
}

.nav-header-wrap a {
    text-decoration: none
}

.nav-header-wrap .box {
    background: radial-gradient(#d8d8d8 20%,transparent 60%);
    height: .0625rem;
    margin: 0 auto;
    width: 100%
}

.nav-header-wrap .nav-header {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    height: 100%;
    margin: 0 auto;
    position: relative;
    width: 90rem
}

.nav-header-wrap .nav-header .nav-header-left {
    -webkit-box-align: center;
    -ms-flex-align: center;
    -webkit-align-items: center;
    align-items: center;
    display: inline-block;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    height: 4rem;
    min-width: 4.25rem
}

.nav-header-wrap .nav-header .nav-header-left .nav-header-left-img {
    height: 1.875rem;
    width: 13.125rem
}

.nav-header-wrap .nav-header ul li {
    list-style: none;
    margin: 0;
    padding: 0
}

.nav-header-wrap .nav-header .nav-header-content {
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-justify-content: space-between;
    justify-content: space-between;
    margin: 0 auto;
    min-width: 39.375rem
}

.nav-header-wrap .nav-header .nav-header-content li {
    display: inline-block;
    height: 4rem;
    line-height: 4rem
}

.nav-header-wrap .nav-header .nav-header-content .nav-titles {
    font-family: AlibabaPuHuiTi;
    font-size: 1rem;
    font-weight: 500;
    opacity: .72;
    padding: 0 30px
}

.nav-header-wrap .nav-header .nav-header-content .nav-titles a:link,.nav-header-wrap .nav-header .nav-header-content .nav-titles a:visited {
    color: #fff;
    font-family: AlibabaPuHuiTi;
    font-size: 1rem
}

.nav-header-wrap.sticky .nav-header .nav-header-content .nav-titles a {
    color: #000
}

.nav-header-wrap .nav-header .nav-header-content .nav-titles a {
    text-decoration: none
}

.nav-header-wrap .nav-header .nav-header-content .nav-titles .link-item {
    font-family: AlibabaPuHuiTi;
    font-size: 1rem
}

.nav-header-wrap .nav-header .nav-header-content .nav-titles-wrap {
    font-weight: 800;
    opacity: 1
}

.nav-header-wrap .nav-header .nav-header-content .nav-titles-wrap a:visited {
    color: #fff;
    font-family: AlibabaPuHuiTiR;
    font-size: .875rem
}

.nav-header-wrap .nav-header .nav-header-content .nav-titles-wrap a {
    color: #fff;
    font-family: AlibabaPuHuiTiR;
    font-size: .875rem
}

.nav-header-wrap .nav-header .nav-header-right {
    line-height: 4rem;
    position: relative;
    right: 0
}

.language-selector {
    position: relative;
    cursor: pointer;
    font-size: 12px
}

.language-selected {
    min-width: 100px;
    height: 32px;
    background: 0 0;
    color: #fff;
    border: 1px solid #fff;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: space-around
}

.language-selected.active i {
    transform: rotate(180deg)
}

.language-options {
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity .3s ease,transform .3s ease
}

.language-options.show {
    opacity: 1;
    transform: translateY(0);
    display: block;
    border: 1px solid #fff;
    border-radius: 4px;
    color: #fff;
    line-height: 2rem
}

.language-options.show .language-option {
    width: 100%;
    text-align: center
}

.language-options.show .language-option:hover {
    background: #cfae97
}

/**通用banner**/

.common-banner-wrap {
    width: 100%;
    height: 600px;
    background-size: cover;
    overflow: hidden;
}

.mod-con {
    width: 1440px;
    margin: 0 auto;
    
}

.banner-cn-title {
    font-size: 40px;
    color: #fff;
    letter-spacing: 0;
    margin-bottom: 8px;
    font-weight: 700;
    
}

.banner-en-title {
   font-size: 28px;
    color: #fff;
    letter-spacing: 0;
    line-height: 29px;
    margin-top: 27px;
}

.wrap {
    display: block;
    width: 100%;
    position: relative;
    overflow-x: hidden;
}

/**footer**/

.footer {
    background: #f1f3f4;
    width: 100%
}

.footer-wrap {
    margin: 0 auto;
    padding-bottom: .625rem;
    width: 90rem
}

.footer-con {
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    -webkit-box-align: center;
    -ms-flex-align: center;
    -webkit-align-items: center;
    align-items: center;
    border-bottom: .0625rem solid #e9e9e9;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    height: 10.25rem;
    -webkit-justify-content: space-between;
    justify-content: space-between;
    width: 100%
}

.follow-us-left {
    width: 13.125rem
}

.follow-us-left img {
    width: 100%
}

.fllow-us {
    color: #5f6464;
    font-size: 1.375rem;
    height: 2.3125rem;
    line-height: 2.3125rem;
    width: 9.375rem
}

.follow-us-right {
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    height: 2.3125rem;
    -webkit-justify-content: space-between;
    justify-content: space-between;
    width: 25rem;
    align-items: center
}

.focus-list {
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-justify-content: space-between;
    justify-content: space-between;
    width: 16rem
}

.footer-con .focus-list li {
    display: inline-block;
    float: left
}

.footer-con .focus-list li a {
    display: block;
    height: 28px;
    width: 28px
}

.footer-con .focus-list li a .icon {
    display: block;
    height: 28px;
    width: 28px;
    background: url(../images/icon_wechat.png) no-repeat center;
    background-size: 100% 100%;
    position: relative;
    transition: background .2s ease-in-out
}

.footer-con .focus-list li a .i_weibo {
    background: url(../images/icon_weibo.png) no-repeat center;
    background-size: 100% 100%
}

.footer-con .focus-list li a .i_twitter {
    background: url(../images/icon_twitter.png) no-repeat center;
    background-size: 100% 100%
}

.footer-con .focus-list li a .i_in {
    background: url(../images/icon_in.png) no-repeat center;
    background-size: 100% 100%
}

.footer-con .focus-list li a .i_zhihu {
    background: url(../images/icon_zhihu.png) no-repeat center;
    background-size: 100% 100%
}

.footer-con .focus-list li a:hover .icon {
    background: url(../images/icon_wechat_hover.png) no-repeat center;
    background-size: 100% 100%
}

.footer-con .focus-list li a:hover .i_weibo {
    background: url(../images/icon_weibo_hover.png) no-repeat center;
    background-size: 100% 100%
}

.footer-con.focus-list li a:hover .i_twitter {
    background: url(../images/icon_twitter_hover.png) no-repeat center;
    background-size: 100% 100%
}

.footer-con .focus-list li a:hover .i_in {
    background: url(../images/icon_in_hover.png) no-repeat center;
    background-size: 100% 100%
}

.footer-con .focus-list li a:hover .i_zhihu {
    background: url(../images/icon_zhihu_hover.png) no-repeat center;
    background-size: 100% 100%
}

.wechat-code {
    width: 176px;
    position: absolute;
    left: 0;
    top: -186px;
    z-index: 2;
    display: block;
    opacity: 0;
    transition: opacity .2s linear;
    pointer-events: none
}

.footer-con .focus-list li a:hover .wechat-code {
    display: block;
    opacity: 1
}

.foot-top {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    padding: 60px 0;
    border-top: 1px solid #dadce0;
    border-bottom: 1px solid #dadce0
}

.foot-top-left {
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-justify-content: space-between;
    justify-content: space-between;
    width: 100%
}

.foot-top-items {
    margin-right: 5rem
}

.foot-top-items:last-child {
    margin-right: 0
}

.foot-top-title {
    color: #5f6464;
    font-size: 1.25rem;
    margin-bottom: 16px
}

.foot-top-li {
    color: #5f6464;
    cursor: pointer;
    font-size: 1rem;
    padding: 8px 0
}

.foot-top-li:hover {
    color: #05d
}

.foot-bot-wrap {
    align-items: center;
    display: flex;
    height: 7.25rem;
    -webkit-justify-content: space-between;
    justify-content: space-between;
    width: 100%
}

.foot-bot-right {
    display: flex;
    flex-wrap: wrap;
    justify-content: center
}

.foot-bot-right a {
    color: #5f6464;
    margin: 0 .2rem
}

.foot-bot-right a:hover {
    color: #05d
}

.foot-bot-copyright {
    color: #5f6464
}

@media (max-width:768px) {
    .nav-header-wrap .nav-header .nav-header-right {
        display: none!important
    }

    .nav-header-wrap {
        height: 3rem;
        padding: 0 1rem
    }

    .nav-header-wrap .nav-header {
        width: 100%;
        justify-content: space-between;
        padding: 0
    }

    .nav-header-wrap .nav-header .nav-header-left {
        margin: 0 auto;
    }

    .nav-header-wrap .nav-header .nav-header-left .nav-header-left-img {
        height: 1.5rem;
        width: auto;
        max-width: 10rem
    }

    .nav-header-content {
        display: none!important
    }

    .mobile-menu-btn {
        display: block;
        background: 0 0;
        border: none;
        color: #fff;
        font-size: 1.5rem;
        cursor: pointer;
        z-index: 101;
        padding: .5rem
    }

    .nav-header-wrap.sticky .mobile-menu-btn {
        color: #333
    }

    .mobile-menu {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 80%;
        max-width: 300px;
        background-color: #fff;
        box-shadow: -2px 0 10px rgba(0,0,0,.1);
        z-index: 100;
        transform: translateX(100%);
        transition: transform .3s ease-in-out;
        overflow-y: auto
    }

    .mobile-menu.open {
        transform: translateX(0)
    }

    .mobile-menu-content {
        padding: 4rem 1.5rem 2rem
    }

    .mobile-menu-content .nav-titles {
        display: block;
        padding: 0;
        margin-bottom: 1rem
    }

    .mobile-menu-content .nav-titles a {
        color: #333!important;
        display: block;
        padding: .8rem 0;
        border-bottom: 1px solid #f1f1f1
    }

    .mobile-menu-close {
        position: absolute;
        top: 1rem;
        right: 1rem;
        background: 0 0;
        border: none;
        font-size: 1.5rem;
        cursor: pointer;
        color: #333
    }

    .mobile-menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0,0,0,.5);
        z-index: 99;
        display: none
    }

    .mobile-menu-overlay.show {
        display: block
    }

    .footer-wrap {
        width: 100%;
        padding: 0 1rem
    }

    .footer-con {
        flex-direction: column;
        height: auto;
        padding: 2rem 0;
        text-align: center
    }

    .follow-us-right {
        flex-direction: row;
        height: auto;
        width: 100%;
        margin-top: 1.5rem;
        display: flex;
        flex-wrap: nowrap;
    }

    .focus-list {
        margin-top: 0;
        width: 100%;
        justify-content: center;
        gap: 1rem;
    }

    .foot-top {
        flex-direction: column;
        padding: 2rem 0
    }

    .foot-top-items ul {
        display: none
    }

    .foot-top-items.active ul {
        display: block
    }

    .foot-top-title {
        color: #5f6464;
        font-size: 1.25rem;
        margin-bottom: 16px;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between
    }

    .foot-top-title i {
        color: #666;
        transition: transform .3s ease
    }

    .foot-top-items.active .foot-top-title i {
        transform: rotate(180deg)
    }

    .foot-top-left {
        flex-direction: column
    }

    .foot-top-items {
        margin-right: 0;
        margin-bottom: 2rem
    }

    .foot-bot-wrap {
        flex-direction: column;
        height: auto;
        padding: 2rem 0;
        text-align: center
    }

    .foot-bot-right {
        margin-bottom: 1rem
    }
    
    .follow-us-left {
        display: none!important
    }
}

@media (min-width:769px) {
    .mobile-menu,.mobile-menu-btn,.mobile-menu-overlay,.foot-top-title i {
        display: none!important
    }
}