body,
h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
}

.fr {
    float: right;
}

.header {
    position: fixed;
    z-index: 70;
    height: 84px;
    top: 0;
    left: 0;
    right: 0;
    background: url(../images/header-bg.png) center center;
    background-size: 100% 100%;
}

.logo {
    top: 2px;
    position: absolute;
    left: 50%;
    transform: translate(-50%);
    color: #fff;

    width: 480px;
    height: 60px;
    text-indent: -9999px;
    overflow: hidden;
}

.caption {
    color: #fff;
    text-align: center;
    font-size: 20px;
    line-height: 65px;
}

.menu {
    margin: 0;
    padding: 0;
    position: fixed;
    right: 30px;
    top: 0;
    list-style-type: none;
}

.menu li {
    float: left;
    height: 65px;
    line-height: 60px;
    font-size: 14px;
    position: relative;
    display: flex;
    align-items: center;
}

.menu li:first-child {
    margin-right: 0px;
}

.menu a {
    display: inline-block;
    width: 117px;
    height: 28px;
    overflow: hidden;
    text-indent: -9999em;
}

.menu li.active {
    background: url(../images/menu-item-active.png) no-repeat bottom center;
    background-size: 100% 13px;
}

.menu li:last-child a {
    background: url(../images/menu-item2.png) center center;
    background-size: 100% 100%;
}

.menu li:last-child.active a,
.menu li:last-child:hover a {
    background: url(../images/menu-item2-hover.png) center center;
    background-size: 100% 100%;
}

.kefu {
    display: inline-block;
    width: 84px;
    height: 84px;
    position: fixed;
    z-index: 100;
    right: 0;
    top: 60%;
    margin-top: -42px;
    background: url(../images/kefu.png) center center;
    background-size: 100% 100%;
    cursor: pointer;
}

.hide {
    display: none !important;
}

.section {
    text-align: center;
    font: 16px "Microsoft Yahei";
    color: #fff;
    background-size: cover;
}

.section video{
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  object-fit: cover;
  object-position: center center;
}

#section0 {
    background-image: url(../images/1.jpg);
}

#section0 h1{
  font-size: 80px;
} 
.links {
    text-align: center;
}

.btn-link {
    font-size: 30px;
    display: inline-block;
    width: 400px;
    height: 230px;
    line-height: 76px;
    text-align: center;
    margin: 0 30px;
    text-decoration: none;
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}

.btn-link1 {
    background: url(../images/ky-1.png) center center;
    background-size: 100% 100%;
}

.btn-link2 {
    background: url(../images/jiuyou-1.png) center center;
    background-size: 100% 100%;
}

.btn-link3 {
    background: url(../images/ly-1.png) center center;
    background-size: 100% 100%;
}

.btn-link4 {
    background: url(../images/ayx-1.png) center center;
    background-size: 100% 100%;
}

.slogon {
    background-size: 100% 100%;
    position: relative;
    margin: 0 auto;
    overflow: hidden;
    text-indent: -9999em;
    margin-top: 4%;
}

.slogon2 {
    width: 100%;
    height: 207px;
    background: url(../images/slogon.png) center center no-repeat;
}

.partner {
    padding: 0;
    margin: 0;
    position: absolute;
    bottom: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    text-align: center;
}

.cards-list {
    display: flex;
    justify-content: left;
    align-items: center;
    width: 1400px;
    margin: 60px auto 40px;
}

.card {
    position: relative;
    width: 280px;
    height: 238px;
    margin-right: 20px;
    transition: all .3s;
    overflow: hidden;
    cursor: pointer;
    color: #fff;
}

.card:last-child {
    margin-right: 0;
}

.card.active {
    width: 504px;
}

.card.active .list-box-min {
    opacity: 0;
}

.card.active .list-box-max {
    opacity: 1;
}

.list-box-min {
    text-align: center;
    background: url(../images/card-bg.png) center center;
    background-size: 100% 100%;
    opacity: 1;
}

.list-box-max {
    opacity: 0;
    background: url(../images/card-bg2.png) center center;
    background-size: 100% 100%;
}

.list-box-max,
.list-box-min {
    padding: 0;
    color: #fff;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    transition: opacity 0.35s linear;
}

.list-box-max .title {
    font-size: 27px;
    font-weight: 600;
    color: #2BA4FF;
    margin-bottom: 10px;
    margin-top: 65px;
}

.list-box-max .txt {
    font-size: 18px;
    color: #2BA4FF;
    margin: 0;
    padding: 0 10px;
}

.list-box-min .txt {
    font-size: 18px;
    color: #fff;
    margin: 0;
    padding: 0 10px;
}

.list-box-min .card-icon {
    width: 28px;
    height: 28px;
    margin: 70px auto 10px auto;
}

a:hover {
    position: relative;
    top: 1px;
    left: 1px;
}

@media screen and (max-width:1400px) {
    .cards-list {
        margin-top: 30px;
        width: 100%;
    }
    .card {
        width: 20%;
    }
    .card.active {
        width: 30%;
    }
    .partner img {
        width: 100%;
    }
}

@media screen and (max-width:720px) {
    body {
        display: none;
    }
}

.btn-pos {
    position: absolute;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    width: 67%;
    bottom: 0;
}

.btn-pos:hover {
    cursor: pointer;
}

.btn-pos img {
    width: 65%;
    height: 57px;
}

.btn-pos img:hover {
    scale: 1.05;
}