h1 {
    font-size: 5em;
    font-family: arial, helvetica;
    color: #fff;
    margin: 0;
    padding: 0;
}

#myVideo {
    position: absolute;
    right: 0;
    bottom: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-size: 100% 100%;
    background-color: black;
    background-position: center center;
    background-size: contain;
    object-fit: cover;
    z-index: 3;
}

.slidepic {
    width: 100%;
    height: 100vh;
    overflow: hidden;
    line-height: 0;
    z-index: 3;
}
.slidepic img {
    width: 100%;
    line-height: 0px;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#slide1 ,#slide2 ,#slide3{
    overflow: hidden;
    position: relative;
}
#slide2 .tit {
    font-size: 50px;
    letter-spacing: 5px;
    font-weight: normal;
    position: absolute;
    color: #fff;
    z-index: 4;
    text-align: left;
    left: 10%;
    top: 25%;
    -webkit-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
}
#slide2 .des {
    font-size: 20px;
    position: absolute;
    color: #fff;
    z-index: 4;
    text-align: left;
    font-weight: 200;
    left: 10%;
    top: calc(25% + 100px);
    -webkit-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    line-height: 36px;
}
#slide2 .btn {
    width: 120px;
    height: 42px;
    line-height: 42px;
    border-radius: 21px;
    background-color: #EA5B3C;
    color: #fff;
    position: absolute;
    z-index: 4;
    left: 10%;
    top: calc(25% + 190px);
}
#slide2 .btn:hover {
    background-color: #ff7a02;
}

#slide3 .tit {
    font-size: 50px;
    letter-spacing: 5px;
    font-weight: normal;
    position: absolute;
    color: #fff;
    z-index: 4;
    text-align: left;
    left: 70%;
    top: 30%;
    -webkit-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
}
#slide3 .des {
    font-size: 20px;
    position: absolute;
    color: #fff;
    z-index: 4;
    text-align: left;
    font-weight: 200;
    left: 70%;
    top: calc(30% + 100px);
    -webkit-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    line-height: 36px;
}
#slide3 .btn {
    width: 120px;
    height: 42px;
    line-height: 42px;
    border-radius: 5px;
    background-color: #EA5B3C;
    color: #fff;
    position: absolute;
    z-index: 4;
    left: 70%;
    top: calc(30% + 190px);
}
#slide3 .btn:hover {
    background-color: #ff7a02;
}
video::-webkit-media-controls {
    display: none !important;
}
#header{
    height:90px;
    width:100%;
    z-index:999;
    position: fixed;
    top: 0;
    left: 0;
}

.logo{
    position: absolute;
    left: 0;
    top: 0;
    width: 300px;
    height:90px;
    line-height: 0px;
    overflow: hidden;
    margin-left:50px;
    z-index:9;
    float: left;
}
.logo img {
    margin-top: 33px;
    height: 22px;
}
.ove {
    display: none;
}
#header {
    animation: fadeInDown;
    animation-duration: 1.5s
}

.topstore {
    right: 70px;
    top: 0;
    position: absolute;
    width: 130px;
    height: 90px;
}
.topstore a {
    float: left;
    height: 32px;
    width: 32px;
    list-style: none;
    margin-top: 29px;
    text-indent: -1000px;
    overflow: hidden;
}
.topstore a:nth-child(1) {
    background: url(../images/icon-tmall.png) center no-repeat;
    background-size: 100%;
}
.topstore a:nth-child(2) {
    background: url(../images/icon-jd.png) center no-repeat;
    background-size: 100%;
    margin-left: 20px;
}
.topstore a:nth-child(1):hover {
    background: url(../images/icon-tmall-on.png) center no-repeat;
    background-size: 100%;
}
.topstore a:nth-child(2):hover {
    background: url(../images/icon-jd-on.png) center no-repeat;
    background-size: 100%;
}
.topstore2 a:nth-child(1) {
    background: url(../images/icon-tmall2.png) center no-repeat;
    background-size: 100%;
}
.topstore2 a:nth-child(2) {
    background: url(../images/icon-jd2.png) center no-repeat;
    background-size: 100%;
    margin-left: 20px;
}
.tit1 {
    position: absolute;
    left: 0px;
    top: 25%;
    width: 100%;
    font-size: 70px;
    color: #333;
    letter-spacing: 3px;
    z-index: 5;
    font-weight: bold;
}
.intro1 {
    left: 0px;
    top: calc(25% + 140px);
    position: absolute;
    width: 100%;
    font-size: 20px;
    color: #333;
    line-height: 36px;
    z-index: 5;
    letter-spacing: 2px;
}
.btn1 {
    width: 120px;
    height: 42px;
    line-height: 42px;
    border-radius: 21px;
    background-color: #EA5B3C;
    color: #fff;
    position: absolute;
    z-index: 5;
    left: 50%;
    margin-left: -60px;
    top: calc(25% + 400px);
}
.btn1:hover {
    background-color: #000;
}

.ipro {
    width: 25%;
    height: 100vh;
    overflow: hidden;
    position: relative;
    float: left;
    line-height: 0px;
    background-color: #000;
}
.ipro img {
    width: 100%;
    text-align: center;
    filter: opacity(60%);
}
.ipro:hover img {
    filter: opacity(100%);
}
.ipro .iprotit {
    font-size: 42px;
    width: 100%;
    position: absolute;
    top: 25%;
    padding-left: 50px;
    color: #fff;
    letter-spacing: 3px;
    text-align: left;
}
.ipro .iprotiten {
    font-size: 18px;
    width: 100%;
    position: absolute;
    top: calc(25% + 40px);
    text-align: left;
    padding-left: 50px;
    color: #fff;
    font-weight: 200;
}
.tit2 {
    top: 30%;
    text-align: left;
    position: absolute;
    width: 100%;
    font-size: 48px;
    color: #fff;
    letter-spacing: 3px;
    z-index: 5;
    font-weight: bold;
    padding-left: 100px;
}
.iitems {
    width: 100%;
    overflow: hidden;
    box-sizing: border-box;
    padding: 30px;
    padding-top: 80px;
    padding-bottom: 80px;
}
.iitems .iitem {
    width: calc((100% - 60px) / 3);
    float: left;
    box-sizing: border-box;
    overflow: hidden;
    padding: 30px;
    margin-left: 30px;
    border-radius: 5px;
    text-align: left;
}
.iitems .iitem:nth-child(1) {
    margin-left: 0px;
}
.iitems .iitem .iitempic {
    width:100%;
    overflow: hidden;
    line-height: 0px;
    border-radius: 5px;
}
.iitems .iitem .iitempic img {
    width: 100%;
    transition: 0.6s all;
}
.iitems .iitem .iitemtit {
    font-size: 28px;
    height: 28px;
    line-height: 28px;
    margin-top: 20px;
}
.iitems .iitem .iitemdes {
    color: #999;
    margin-top: 10px;
}
.iitems .iitem .iitemmore {
    width: 100px;
    height: 36px;
    line-height: 36px;
    margin-top: 20px;
    background-color: #006DB2;
    color: #fff;
    text-align: center;
    border-radius: 5px;
}
.iitems .iitem .iitemmore:hover {
    background-color: #1d5499;
}
.iitems .iitem:hover .iitempic img {
    transform: scale(1.05);
}
#section2 {
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background-color: #000;
}
#section5 {
    background-color: #fff;
}
.iitems .iitem .iitemcats {
    margin-top: 10px;
    width: 100%;
    overflow: hidden;
    margin-bottom: 10px;
}
.iitems .iitem .iitemcats li {
    float: left;
    border-radius: 5px;
    background-color: #f6f6f6;
    height: 32px;
    line-height: 32px;
    margin-right: 10px;
    font-size: 12px;
    padding-left: 10px;
    padding-right: 10px;
}
.iitems .iitem .iitemcats li:hover {
    background-color: #006DB2;
    color: #fff;
}
.scrollDiv {
	height: 32px;
	line-height: 32px;
	overflow: hidden;
}
.scrollDiv li {
	height: 32px;
    line-height: 32px;
    background: url(arrrow_r.png) left center no-repeat;
    background-size: auto 16px;
    text-indent: 24px;
}
.scrollDiv li:hover {
    background: url(arrrow_r_on.png) left center no-repeat;
    background-size: auto 16px;
}
.icasetit {
    font-size: 50px;
    letter-spacing: 5px;
    font-weight: normal;
    position: absolute;
    color: #333;
    z-index: 4;
    text-align: left;
    width: 100%;
    text-align: center;
    height: 60px;
    line-height: 60px;
    top: 15%;
    -webkit-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
}
.icasedes {
    font-size: 20px;
    position: absolute;
    color: #333;
    z-index: 4;
    text-align: left;
    font-weight: 200;
    width: 100%;
    text-align: center;
    top: calc(15% + 80px);
    -webkit-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    line-height: 36px;
}
.icasebtn {
    width: 120px;
    height: 42px;
    line-height: 42px;
    border-radius: 21px;
    background-color: #EA5B3C;
    color: #fff;
    position: absolute;
    z-index: 4;
    left: 50%;
    margin-left: -60px;
    top: calc(15% + 150px);
}

.inewstit {
    font-size: 48px;
    margin-top: 100px;
}
.inews {
    width: calc(100% - 200px);
    margin-left: 100px;
    overflow: hidden;
}
.inewsitem {
    width: calc((100% - 100px) / 3);
    float: left;
    margin-right: 50px;
}
.inewsitem:nth-last-child(1) {
    margin-right: 0px;
}
.inewsitem .inewspic {
    aspect-ratio: 5 / 3;
    width: 100%;
    overflow: hidden;
}
.inewsitem .inewspic img {
    width: 100%;
    object-fit: cover;
    transition: 0.6s all;
}
.inewsitem .inewspic:hover img {
    transform: scale(1.05);
}
.inewsitem .inewsbt {
    margin-top: 20px;
    text-align: left;
    font-size: 20px;
    height: 20px;
    line-height: 20px;
}
.inewsitem .inewsdate {
    color: #999;
    height: 20px;
    line-height: 20px;
    text-align: left;
    margin-top: 20px;
}