* {
    margin: 0;
    padding: 0;
}

li {
    list-style-type: none;
}

a {
    text-decoration: none;
}

.body {
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    position: relative;
    font-family: "PingFang SC", "SourceHanSansCN", "Helvetica", "Arial", "微软雅黑", "microsoft yahei", sans-serif;
}

.top {
    width: 100%;
    height: 112px;
    background-color: #46a6e6;
    position: fixed;
    top: 0;
    z-index: 2000;
}

.top-box {
    width: 1200px;
    height: 112px;
    margin: 0 auto;
    position: relative;
}

.top-logo {
    width: 365px;
    height: 72px;
    background: url('../public/icon/png_2x/i_2x-01.png') no-repeat center;
    background-size: 365px 72px;
    position: absolute;
    top: 20px;
    left: 0;
}

.input-icon {
    width: 14px;
    height: 14px;
    background: url('../public/icon/png_2x/i_2x-02.png') no-repeat center;
    background-size: 14px 14px;
    position: absolute;
    right: 75px;
    top: 25px;
    cursor: pointer;
}

.top-a-2 {
    display: block;
    position: absolute;
}

.top-a-2 {
    font-size: 12px;
    color: #FFFFFF;
    top: 23px;
    right: 0;
}

.input-box {
    display: none;
    animation: sideIn 1s ease-in-out forwards;
}

@keyframes sideIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.top-input {
    width: 155px;
    height: 30px;
    background-color: #FFFFFF;
    border: none;
    font-size: 14px;
    color: #333333;
    padding-left: 10px;
    padding-right: 40px;
    position: absolute;
    top: 17px;
    right: 63px;
}

.input-icon-2 {
    width: 14px;
    height: 14px;
    background: url('../public/icon/png_2x/i_2x-03.png') no-repeat center;
    background-size: 14px 14px;
    position: absolute;
    right: 75px;
    top: 25px;
    cursor: pointer;
}

.nav {
    width: 100%;
    height: 52px;
    background-color: #FFFFFF;
    position: fixed;
    top: 112px;
    z-index: 2000;
}

.nav-box {
    width: 1200px;
    height: 52px;
    margin: 0 auto;
    display: flex;
}

.nav-item {
    position: relative;
    width: 171px;
    height: 52px;
    line-height: 52px;
    text-align: center;
    font-size: 16px;
    color: #1A1A1A;
}

.nav-hover {
    position: absolute;
    transform: translateX(-50%);
    left: 50%;
    top: 100%;
    opacity: 0;
    visibility: hidden;
    transition: .3s;
    z-index: 1000;

}

.item-a-1,
.nav-hover a {
    width: 171px;
    height: 52px;
    display: block;
    line-height: 52px;
    text-align: center;
    font-size: 16px;
    color: #1A1A1A;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.nav-hover a {
    color: #4d4d4d;
}

.nav-hover a {
    background-color: rgba(246, 246, 246, .9);
}

.nav-item:hover .item-a-1 {
    background-color: #F2F2F2;
    color: #0066B6;
}

.nav-item:hover .nav-hover {
    opacity: 1;
    visibility: inherit;
}

.nav-hover a:hover {
    color: #0066B6;
    background-color: rgba(234, 234, 234, .9);
}

.big-banner {
    width: 100%;
    height: 910px;
    position: relative;
    overflow: hidden;
    /* margin-top: 164px; */
}

.big-banner-box {
    width: auto;
    max-width: 1920px;
    height: 910px;
    margin: 0 auto;
}

.big-banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.big-banner-circles {
    position: absolute;
    display: flex;
    top: 850px;
    left: 50%;
    transform: translate(-50%, 0);
}

.big-img-circle {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, .5);
    cursor: pointer;
    margin-right: 12px;
}

.footer {
    width: 100%;
    height: 199px;
    background-color: #46a6e6;
}

.footer-box {
    width: 1200px;
    height: 199px;
    margin: 0 auto;
}

.footer-top {
    display: flex;
}

.footer-logo {
    width: 365px;
    height: 72px;
    background: url('../public/icon/png_2x/i_2x-01.png') no-repeat center;
    background-size: 365px 72px;
    margin-top: 30px;
}

.footer-text {
    font-size: 12px;
    color: #FFFFFF;
    margin-top: 50px;
    margin-left: 51px;
}

.footer-text div:nth-child(2) {
    margin-top: 10px;
}

.footer-line {
    width: 100%;
    height: 1px;
    background-color: rgba(255, 255, 255, .2);
    margin-top: 10px;
    margin-bottom: 12px;
}

.footer-bottom {
    display: flex;
    font-size: 12px;
    color: rgba(255, 255, 255, .6);
}

.footer-bottom div:nth-child(2) {
    margin-left: auto;
}

.footer-link {
    margin-left: 179px;
}

.footer-link-top {
    font-size: 12px;
    color: #FFFFFF;
    margin-top: 15px;
}

.footer-link-box {
    display: flex;
    margin-top: 20px;
}

.footer-link-box a {
    display: block;
    font-size: 12px;
    color: #FFFFFF;
    margin-bottom: 8px;
}

.link-box-2 {
    margin-left: 130px;
}

.box {
    width: 100%;
    overflow: hidden;
}

.box-main {
    width: 1200px;
    margin: 0 auto;
    margin-top: 60px;
    display: flex;
    padding-bottom: 120px;
}

.box-left {
    width: 576px;
    height: 396px;
    background: url('../public/q_t_t_p_/1.jpg') no-repeat center;
    background-size: 576px 396px;
}

.box-right {
    margin-left: 39px;
}

.box-right-top {
    font-weight: 500;
    font-size: 28px;
    color: #0066B6;
    position: relative;
    margin-left: 9px;
}

.box-right-top div {
    position: absolute;
    width: 109px;
    height: 25px;
    background: url('../public/icon/png_2x/i_2x-09.png') no-repeat center;
    background-size: 109px 25px;
    bottom: -15px;
    left: -9px;
}

.box-right-mid {
    width: 559px;
    height: 210px;
    font-size: 18px;
    color: #1A1A1A;
    line-height: 32px;
    margin-top: 60px;
}

.box-right-bottom {
    width: 130px;
    display: flex;
    margin-top: 55px
}

.box-right-bottom div:nth-child(1) {
    font-weight: normal;
    font-size: 18px;
    color: #0066B6;
}

.box-right-bottom div:nth-child(2) {
    width: 9px;
    height: 14px;
    background: url('../public/icon/png_2x/i_2x-20.png') no-repeat center;
    background-size: 9px 14px;
    margin-top: 2px;
    margin-left: 13px;
}