body,div,ol,ul,li,dl,dt,dd,h1,h2,h3,h4,h5,h6,p,form,fieldset,legend,input{ margin:0; padding:0;}
h1,h2,h3,h4,h5,h6{ font-size:100%; font-weight:normal;}
ol,ul{ list-style:none;}
img,fieldset{ border:0 none; display:block;}
body{
	/*overflow: hidden;*/
}
a{
	color: black;
}

body, html {
    height: 100vh;
    overflow: hidden;
}
#move_div{
	background: url(../img/float.png) no-repeat;
	top: 70%;
	position: fixed;
	right: 50px;
	width: 100px;
	height: 103px;
	z-index: 1000;
}
.top{
	width: 100%;
	height: 100vh;
	background-color: white;
	position: relative;
}
.mask{
	width: 100%;
	height: 100vh !important;
	display: block;
	position: fixed;
    left: 0;
    top: 0;
    background-color: #000;
}
#head_content{
    z-index: 99;
    display: block;
    position: absolute;
	width: 100%;
	margin: 0 auto;
	text-align: center;
	/*background-color: red;*/
	background: url(../img/index/bg3.jpg?v1.1) no-repeat;
	background-size: cover;
	background-position: center;

}
.background{
	width: 100%;
	position: absolute;
}
.black {
	width: 100%;
	height: 100%;
	background-color: #000;
	display: none;
	position: absolute;
}
.word{
	position: absolute;
	left: 39px ;
	bottom:5vh;
	z-index: -1;
}
.close{
	display: none;
	position: absolute;
	top: 5%;
	right: 0;
	text-align: right;
	z-index: 999;
}
.close a{
	font-weight: bold;
	color: white;
	background-color: #6d7380;
}
.working{
	width: 402px;
	height: 67px;
	background: url(../img/index/working.png) no-repeat;
	background-size:100% 100%;
	margin: auto;
}
.intro{
	width: 569px;
	height: 58px;
	text-align:center;
	font-size: 12px;
	color: #ffffff;
	margin-top: 37px;
	overflow: hidden;
	line-height: 20px;
}
.content{
    position: relative;
    margin-top: 8%;
}
#gotoplay{
	width: 220px;
	height: 75px;
	background: url(../img/index/play1.png) no-repeat;
	background-size: 100% 100%;
	cursor: pointer;
	margin: 36px 0 0 159px;
}
.nav{
	width: 100%;
	height: 130px;
	position: fixed;
	top: 0;
	z-index: 9999;

}
.nav_left{
	height: 130px;
	float: left;
}
.nav_right{
	height: 130px;
	float: right;
}
.logo{
	width: 55px;
	height: 50px;
	background: url(../img/index/logo.png) no-repeat;
	background-size: 100% 100%;
	margin-left: 92px;
	margin-top: 38px;
	float: left;
}
.head_nav_item {
	position: relative;
	height: 80px;
	list-style-type: none;
	float: left;
	box-sizing: border-box;
	margin-left: 73px;
}
.head_nav_item a {
	text-decoration: none;
	font-size: 16px;
	color: #ffffff;
	display: block;
	text-align: left;
}
.line{
	width: 0px;
	height: 2px;
	background-color: rgb(218,41,28);
}
.head_nav_item2 {
	position: relative;
	list-style-type: none;
	float: left;
	box-sizing: border-box;
	margin-left: 40px;
}
.head_nav_item2:nth-child(1){
	margin-left: 0px;
}
.head_nav_item2 a {
	text-decoration: none;
	font-size: 16px;
	color: #ffffff;
	display: block;
	text-align: left;
}
.line2{
	width: 0px;
	height: 2px;
	background-color: rgb(218,41,28);
}
.detail{
	padding: 0px 0px;
	display:none;
	position: absolute;
	margin-left: 50%;
	-ms-transform: translate(-50%,0px);
	-webkit-transform: translate(-50%,0px);
	z-index: 99;
	text-align: left;
}
.detail.hover{
	min-width: 600px;
	display:inline-block;
	margin-left: 150px;
	position: absolute;
	text-align: left;
	-ms-transform: translate(-50%,0px);
	-webkit-transform: translate(-50%,0px);
	z-index: 99;
}
.head_nav_list {
	font-size: 14px;
	line-height: 40px;
	float: left;
	margin-top: 40px;
	/*margin-left: 27px;*/
}
.join_btn{
	width: 142px;
	height: 33px;
	border-radius: 20px;
	background-color: white;
	margin-top: 45px;
	float: left;
	text-align: center;
	font-size: 16px;
	cursor: pointer;
	margin-right: 38px;
	padding-top: 5px;
	box-sizing: border-box;
}
.wechat_btn{
	width: 36px;
	height: 36px;
	float: left;
	margin-top: 45px;
	margin-right: 25px;
	}
.in_btn{
	width: 36px;
	height: 36px;
	float: left;
	margin-top: 45px;
	margin-right: 60px;
}

.video_block {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    z-index: 999;
    height: 100vh;
}

.video_block video {
    width: 100%;
    height: auto;
    position: relative;
    z-index: 999;
    /*margin-top: -6%;*/
}

@media screen and (max-width: 1270px) {
    .content {
        margin-top: 0%;
    }
}


@media screen and (max-width: 1030px) {
    .content {
        -webkit-transform: scale(.5);
        -moz-transform: scale(.5);
        -ms-transform: scale(.5);
        -o-transform: scale(.5);
        transform: scale(.5);
        -webkit-transform-origin: left;
        -moz-transform-origin: left;
        -ms-transform-origin: left;
        -o-transform-origin: left;
        transform-origin: left;
    }
}

@media screen and (max-width:1550px) {
    .content {
        -webkit-transform: scale(.8);
        -moz-transform: scale(.8);
        -ms-transform: scale(.8);
        -o-transform: scale(.8);
        transform: scale(.8);
        -webkit-transform-origin: left;
        -moz-transform-origin: left;
        -ms-transform-origin: left;
        -o-transform-origin: left;
        transform-origin: left;
    }
}

@media screen and (max-width:1400px) {
    .content {
        -webkit-transform: scale(.65);
        -moz-transform: scale(.65);
        -ms-transform: scale(.65);
        -o-transform: scale(.65);
        transform: scale(.65);
        -webkit-transform-origin: left;
        -moz-transform-origin: left;
        -ms-transform-origin: left;
        -o-transform-origin: left;
        transform-origin: left;
    }
}

@media screen and (max-width:1300px) {
    .content {
        -webkit-transform: scale(.65);
        -moz-transform: scale(.65);
        -ms-transform: scale(.65);
        -o-transform: scale(.65);
        transform: scale(.65);
        -webkit-transform-origin: left;
        -moz-transform-origin: left;
        -ms-transform-origin: left;
        -o-transform-origin: left;
        transform-origin: left;
        margin-top: 0;
    }
}

@media screen and (max-width:1150px) {
    .content {
        -webkit-transform: scale(.55);
        -moz-transform: scale(.55);
        -ms-transform: scale(.55);
        -o-transform: scale(.55);
        transform: scale(.55);
        -webkit-transform-origin: left;
        -moz-transform-origin: left;
        -ms-transform-origin: left;
        -o-transform-origin: left;
        transform-origin: left;
    }
}

@media screen and (max-width:1000px) {
    .content {
        -webkit-transform: scale(.45);
        -moz-transform: scale(.45);
        -ms-transform: scale(.45);
        -o-transform: scale(.45);
        transform: scale(.45);
        -webkit-transform-origin: top left;
        -moz-transform-origin: top left;
        -ms-transform-origin: top left;
        -o-transform-origin: top left;
        transform-origin: top left;
        margin-top: 10% !important;
    }

    #move_div {
        transform: scale(.85);
    }
}

@media screen and (max-width:800px) {
    .content {
        -webkit-transform: scale(.33);
        -moz-transform: scale(.33);
        -ms-transform: scale(.33);
        -o-transform: scale(.33);
        transform: scale(.33);
        -webkit-transform-origin: top left;
        -moz-transform-origin: top left;
        -ms-transform-origin: top left;
        -o-transform-origin: top left;
        transform-origin: top left;
        margin-top: 10% ;
    }
}

@media screen and (max-width:1178px){
    .in_btn {
        display:none;
    }
    .word{
        transform: scale(.9);
        bottom:4vh !important;
    }
}
@media screen and (max-width:1081px){
    .wechat_btn {
        display:none;
    }
    .word{
        transform: scale(.8);
        bottom:3vh !important;
    }
}
@media screen and (max-width:1020px){
    .join_btn {
        display:none;
    }
    .word{
        transform: scale(.7);
        bottom:2vh !important;
    }
}
@media screen and (max-width:980px){
    .logo{
        display: none;
    }
    .word{
        transform: scale(.6);
        bottom:1vh !important;
    }
    .nav{
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: center;
    }
}