* {
    padding: 0;
    margin: 0;
    font-size: 15px;
    font-family: '微软雅黑';
    list-style: none;
}

body {
    width: 100%;
    overflow-x: hidden;
}

a {
    text-decoration: none;
}

.swiper-button-prev,
.swiper-button-next {
    outline: none;
}

.nav a {
    color: white;

}

.nav {
    background: white;
    z-index: 112;
    position: fixed;
    top: 0;
    width: 100%;
    height: 80px;
    /* border-bottom: 1px solid rgb(51, 72, 99); */
}

.nav>div {
    width: 95%;
    max-width: 1400px;
    box-sizing: border-box;
    height: 80px;
    display: flex;
    margin: 0 auto;
    position: relative;
}

.nav>div>a {
    padding-top: 80px;
    width: 192px;
    background: url(/html/images/logo.jpg) no-repeat center;
    background-size: contain;
    transition: all .2s;
}

.nav>div>ul {
    position: absolute;
    display: flex;
    right: 0;
    background: rgb(31, 167, 241);
    transition: all .2s;
}

.nav>div>ul::before {
    position: absolute;
    left: 100%;
    content: '';
    height: 100%;
    width: 100%;
    background: rgb(31, 167, 241);
    transition: .2s all;
}

.nav>div>ul>li {
    transition: all .2s;
    display: flex;
    height: 80px;
    flex-direction: column;
    width: 105px;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    box-sizing: border-box;
    overflow: hidden;
}

.nav>div>ul>li:first-of-type {
    width: 55px;
}

.nav>div>ul>li:last-of-type {
    width: 15px;
}

.nav>div>ul>li:first-of-type>div {
    left: 26.5px;
}

.nav>div>ul>li>div {
    height: 10px;
    width: 2px;
    position: absolute;
    left: 50.5px;
    bottom: -15px;
    transition: all .3s ease-in-out;
    background: white;
}

.nav>div>ul>li>div:first-of-type {
    bottom: auto;
    top: -15px;
}

.nav>div>ul>li>div>i {
    width: 5px;
    height: 5px;
    background: white;
    border-radius: 50%;
    position: absolute;
    top: -5px;
    left: -1.6px;
}

.nav>div>ul>li>div:first-of-type>i {
    top: 10px;
}

#t {
    transition: all .2s;
    width: 0;
    height: 0;
    border-top: 80px solid white;
    border-right: 80px solid transparent;
}

.lan {
    border: 1px solid rgb(141, 211, 245);
    height: 25px;
    border-radius: 5px;
    font-size: 14px;
    width: 60px;
    line-height: 25px;
    box-sizing: border-box;
    position: relative;
}

.lan>i {
    margin: 0 6px 0 0;
    padding-top: 14px;
    width: 14px;
    display: inline-block;
    background-image: url(/html/images/language3.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}

.nav>div>ul>.lan-show {
    overflow: visible;
}

.lan-choose {
    font-style: normal;
    background-color: white;
    position: absolute;
    top: 100%;
    z-index: 2;
    display: flex;
    flex-direction: column;
    box-shadow: 0px 3px 10px #ccc;
    height: 0;
    overflow: hidden;
    transition: all .3s;
}

.lan-choose>a {
    padding-left: 10px;
    cursor: pointer;
    color: #808080;
    width: 130px;
    max-height: 30px;
    line-height: 30px;
    min-height: 30px;
    display: flex;
    align-items: center;
}

.lan-choose>a:hover {
    background-color: rgb(31, 167, 241);
    color: white;
}

.lan-choose>a>i {
    display: inline-block;
    height: 20px;
    width: 30px;
    margin-right: 10px;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.cn>i {
    background-image: url(/html/images/cn.png);
}

.en>i {
    background-image: url(/html/images/en.png);
}

.es>i {
    background-image: url(/html/images/es.png);
}

.pt>i {
    background-image: url(/html/images/pt.png);
}

.search>i {
    position: relative;
    top: 2px;
    padding-top: 14px;
    width: 14px;
    display: inline-block;
    background-image: url(/html/images/search3.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}

.aside {
    display: none;
}

/*导航栏高度填充*/
.volume {
    transition: all .2s;
    height: 80px;
}

/*PC二级菜单*/
.nav>section {
    height: 0;
    overflow: hidden;
    line-height: 50px;
    transition: height .3s;
    background-color: rgba(255, 255, 255, .7);
}

.nav>section>.snav {
    position: relative;
    width: 95%;
    margin: 0 auto;
    max-width: 1400px;
}

.nav>section>.snav>div {
    visibility: hidden;
    position: absolute;
    opacity: 0;
}

.nav>section>.snav>.navShow {
    visibility: visible;
    opacity: 1;
}

.nav>section>.snav>div>a {
    color: #666;
    font-size: 14px;
    margin-right: 40px;
    display: inline-block;
    transition: all .3s;
}

.nav>section>.snav>div>a:hover {
    color: rgb(31, 167, 241);
}

/*PC二级菜单end*/

/*搜索框*/
.search-box {
    opacity: 0;
    position: absolute;
    /* right: -268px; */
    visibility: hidden;
    display: inline-block;
    background-color: rgb(51, 51, 51);
    transition: .3s opacity;
}

.search-box .search_box {
    background-color: rgb(51, 51, 51);
}

.search-box.show {
    right: 0;
    opacity: 1;
}

.search-box .serBtn {
    cursor: pointer;
    width: 50px;
    border: none;
    outline: none;
    background-color: rgb(51, 51, 51);
    height: 50px;
}

.search-box .serBtn:hover {
    background-color: rgb(0, 118, 192);
}

.search-box .inp {
    width: 218px;
    outline: none;
    text-indent: 15px;
    font-size: 14px;
    color: white;
    border: none;
    background-color: rgb(51, 51, 51);
}

.search-box .serBtn>img {
    width: 20px;
    height: 20px;
}

/*搜索框end*/

/*移动端二级菜单*/
.secondary {
    display: none;
    flex-direction: column;
}

.secondary>a {
    transition: all .3s;
    width: 100%;
    color: black;
    line-height: 0;
    font-size: 14px;
    opacity: 0;
    padding: 0px 10px;
}

/*下拉小箭头*/
.arrowDown {
    transition: all .3s;
    display: none;
    width: 6px;
    height: 6px;
    position: absolute;
    right: 20px;
    top: 25px;
    border-top: 1px solid #222;
    border-right: 1px solid #222;
    transform: rotate(135deg);
}

/*移动端二级菜单end*/
@media screen and (max-width:1360px) {
    .nav {
        height: 70px;
    }

    .volume {
        height: 70px;
    }

    .nav>div {
        height: 70px;
        line-height: 70px;
    }

    .nav>div>a {
        padding-top: 70px;
        width: calc(192/80*70px);
    }

    .nav>div>ul>li {
        height: 70px;
    }

    #t {
        border-top: 70px solid white;
        border-right: 70px solid transparent;
    }

}

@media screen and (max-width:1280px) {
    .nav {
        height: 60px;
    }

    .volume {
        height: 60px;
    }

    .nav>div {
        height: 60px;
        line-height: 60px;
    }

    .nav>div>a {
        padding-top: 60px;
        width: calc(192/80*60px);
    }

    .nav>div>ul>li {
        height: 60px;
    }

    #t {
        border-top: 60px solid white;
        border-right: 60px solid transparent;
    }
}

@media screen and (max-width:1100px) {
    .nav>div>ul::before {
        width: 0;
    }

    .nav.nav-index>div>a {
        background-image: url(/html/images/logo.jpg) !important;
    }

    .nav>div>ul>li {
        height: auto;
        min-height: 60px;
    }

    .arrowDown {
        display: inline-block;
    }

    .show .arrowDown {
        transform: rotate(315deg);
    }

    .show .secondary>a {
        opacity: 1;
        line-height: 1.4;
        padding: 6px 10px;
    }

    .secondary {
        display: flex;
    }

    .nav {
        height: 50px;
    }

    .nav>section {
        display: none !important;
    }

    .volume {
        height: 50px;
    }

    .nav>div {
        height: 50px;
        line-height: 50px;
    }

    .nav>div>a {
        padding-top: 50px;
        width: calc(192/80*50px);
    }

    .nav>div>ul {
        top: -100%;
        color: black;
        background: white;
        position: fixed;
        width: 100%;
        min-height: 100%;
        transition: all .5s;
        box-sizing: border-box;
        opacity: 0;
        padding: 0 20px 0;
        flex-direction: column;
    }

    .nav>div>ul>li {
        align-items: flex-start;
        text-align: left;
        width: 100%;
        box-sizing: border-box;
        border-bottom: 1px solid rgb(217, 217, 217);
    }

    .nav>div>ul>li>div {
        display: none;
    }

    .nav>div>ul>li:first-of-type {
        display: none;
    }

    .nav>div>ul>li:nth-of-type(8) {
        display: none;
    }

    .nav>div>ul>li:nth-of-type(9) {
        display: none;
    }

    #t {
        display: none;
    }

    .nav>div>ul>li>a {
        line-height: 60px;

        color: black;
        position: relative;
    }

    .aside {
        display: flex;
        position: absolute;
        right: 0;
        align-items: center;
    }

    .aside>a,
    .aside>p {
        margin-left: 20px;
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100%;
        color: rgb(31, 167, 241);
    }

    .aside>a>img,
    .aside>p>img {
        height: 20px;
        margin-right: 10px;
        width: auto;
    }

    .switch-btn {
        height: 50px;
        width: 20px;
        margin-left: 10px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .switch-btn>i {
        margin: 2px 0 2px;
        display: inline-block;
        width: 20px;
        height: 2px;
        transition: all .3s;
        background: rgb(31, 167, 241);
    }
}

@media only screen and (min-width: 800px) {
    ::-webkit-scrollbar {
        width: 5px;
        height: 5px;
        background-color: #fff;
    }

    /*定义滚动条轨道 内阴影+圆角*/
    ::-webkit-scrollbar-track {
        border-radius: 0px;
        background: #fff;
    }

    /*定义滑块 内阴影+圆角*/
    ::-webkit-scrollbar-thumb {
        border-radius: 0px;
        background-color: rgb(31, 167, 241);
    }
}