html, body, div, h1, h2, h3, h4, h5, h6, p, dl, dt, dd, ol, ul, li, fieldset, form, label, input, legend, table, caption, tbody, tfoot, thead, tr, th, td, textarea, article, aside, audio, canvas, figure, footer, header, mark, menu, nav, section, time, video {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    /* Firefox */
    -webkit-box-sizing: border-box;
    /* Safari */
}

    input:foucs {
        outline: none
    }

html {
    background-color: #000000;
}

.main {
    width: 70%;
    min-width: 1280px;
    max-width: 1359px;
    /* height: auto; */
    /* background-color: red; */
    margin-left: auto;
    margin-right: auto;
    overflow: visible;
}

.nav {
    position: fixed;
    width: 100%;
    height: 80px;
    background: rgba(14, 14, 14, 1);
    opacity: 0.9;
    z-index: 1005;
}

.footer {
    bottom: 0;
    width: 100%;
    min-width: 1280px;
    height: 605px;
    background: rgba(14, 14, 14, 1);
    opacity: 0.9;
    overflow: hidden;
}

.footer-row1 {
    height: 310px;
    width: 70%;
    min-width: 1280px;
    max-width: 1359px;
    margin-top: 60px;
    margin-left: auto;
    margin-right: auto;
    overflow: hidden;
    display: flex;
    flex-flow: row nowrap;
    justify-content: flex-start;
    align-items: flex-start;
}

.footer-row1-item {
    width: 350px;
    height: 300px;
    margin-right: 70px;
}

.footer-row1-item-l {
    margin-left: -110px;
}

.footer-row1-item1 {
    height: 80px;
    font-size: 32px;
    font-family: PingFang SC;
    font-weight: 400;
    color: rgba(255, 255, 255, 1);
    line-height: 80px;
}

    .footer-row1-item1:hover {
        cursor: pointer;
    }

.footer-row1-item2:hover {
    cursor: pointer;
}

.footer-row1-item2 {
    height: 60px;
    font-size: 24px;
    font-family: PingFang SC;
    font-weight: 400;
    color: rgba(151, 151, 151, 1);
    line-height: 60px;
}

.footer-row1-item2-l {
    margin-top: 24px;
    letter-spacing: 0;
    font-size: 0;
}

    .footer-row1-item2-l a {
        margin-right: 26px;
    }

.footer-row2 {
    height: 90px;
    font-size: 26px;
    font-family: PingFang SC;
    font-weight: 400;
    color: rgba(255, 255, 255, 1);
    line-height: 48px;
    margin-top: 60px;
    margin-left: auto;
    margin-right: auto;
    width: 70%;
    min-width: 1280px;
    max-width: 1359px;
}

    .footer-row2 div:first-child {
        margin-top: 20px;
        margin-bottom: 45px;
    }

.nav {
    position: fixed;
    width: 100%;
    height: 80px;
    background: rgba(14, 14, 14, 1);
    opacity: 0.9;
    z-index: 1005;
    top:0;
}

.nav-container {
    min-width: 1280px;
    width: 71%;
    margin-left: auto;
    margin-right: auto;
    height: 100%;
    line-height: 100%;
}

.nav-part1 {
    width: 18%;
    float: left;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.nav-part2 {
    width: 50%;
    float: left;
    height: 100%;
    display: flex;
    flex-flow: row nowrap;
    justify-content: flex-start;
    align-items: center;
}

.nav-part3 {
    width: 31%;
    float: left;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 18px;
    font-family: PingFang SC;
    font-weight: 400;
    color: rgba(255, 255, 255, 1);
}

.nav-part2-item {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    width: 17%;
    font-size: 18px;
    font-family: PingFang SC;
    font-weight: 400;
    color: rgba(136, 136, 136, 1);
}

    .nav-part2-itemacitve, .nav-part2-item:hover {
        font-family: PingFang SC;
        font-weight: 500 !important;
        color: rgba(255, 255, 255, 1) !important;
        cursor: pointer;
    }

.nav-part3 input {
    width: 265px;
    height: 40px;
    background: rgba(255, 255, 255, 1);
    margin-right: 30px;
    font-family: PingFang SC;
    font-weight: 400;
    color: rgba(51, 51, 51, 1);
    line-height: 40px;
    padding-left: 20px;
    border: 0;
}

.container-m {
    position: relative;
    width: 71%;
    min-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    overflow: hidden;
    height: auto;
}

.container-l {
    position: relative;
    width: 100%;
    min-width: 1280px;
}

.lan {
    cursor: pointer;
}

.lan1 {
    color: gray;
}