/*
模块（没有前缀，多个单词用 - 连接）
元素（元素在模块之后，可以有多个层级，以 __ 连接）
修饰（某元素、或者某模块特别的状态，必须有一个状态名和状态值，使用 _ 链接）

*/


.header{
	
	background-color: #f7f7f7;
}
.header__wrap{
	width:1200px;
	height: 80px;
	margin: 0 auto;
	position: relative;
}
.header__logo{
	width: 150px;
	height: 38px;
	line-height: 38px;
	font-size: 20px;
	color: #07111b;
	text-indent: 50px;
	background: url('../images/index/logo.png') left center no-repeat;
	background-size: 38px 38px;
	position: absolute;
	top: 50%;
	margin-top: -19px;
	left: 20px;
}

.header__nav{
	position: absolute;
	right: 20px;
	height: 38px;
	top: 50%;
	margin-top: -19px;
}
.header__nav-item{
	color: #292f35;
	font-size: 14px;
	display: block;
	height: 38px;
	line-height: 38px;
	float: left;
	position: relative;

	width: 30px;
	text-align: center;
/*	margin: 0;*/
	padding-left: 40px;
}
.header__nav-item:hover{
	color: #f01400;
}
.header__nav-item_status_active{
	color: #f01400;
}
.header__nav-item_status_active::after{
/*	content: ' ';
	display: block;
	width: 100%;
	height: 2px;
	position: absolute;
	background-color:#f01400; 
	left: 0;
	bottom: 0;*/
}
.header__nav-item_custom_button{
	background: #000;
	color: #f4f4f5;
	text-align: center;
	width: 90px;
	border-radius: 3px;

	/**/
	margin-left:40px;
	padding: 0;
}

/*第一屏*/
.screen-1{
	height: 800px;
	/*! background-color: #e7e7e7; */
	position: relative;
	overflow: hidden;
	/*! background:url(../images/index/bg-screen-1.png) no-repeat center; */
	background-size: cover;
}
.screen-1__heading{
	font-weight: normal;
	margin: 0;
	padding: 0;
	font-size:46px;
	color: #4d555d;
	text-align: center;
	padding-top: 80px;
}
.screen-1__heading b{
	color: #f01400;
	font-weight: normal;
}
.screen-1__phone{
	width: 1375px;
	height: 305px;
	background:url(../images/index/screen-1-phone.png) no-repeat center;
	position: absolute;
	left: 50%;
	margin-left: -687px;
	bottom: 180px;
	z-index: 2;
}
.screen-1__shadow{
	width: 1233;
	height: 411px;
	background:url(../images/index/screen-1-shadow.png) no-repeat center;
	position: absolute;
	left: 50%;
	margin-left: -616px;
	bottom: 30px;
	z-index: 1;
	opacity: .8;
}
/*第二屏*/
.screen-2{
	background-color: #fff;
	height: 800px;
	position: relative;
	overflow: hidden;
}

.screen-2__heading{
	font-weight: normal;
	margin: 0;
	padding: 0;
	font-size:46px;
	line-height: 46px;
	color: #f01400;
	text-align: center;
	padding-top: 56px;
}
.screen-2__subheading{
	font-weight: normal;
	margin: 0;
	padding: 0;
	font-size:14px;
	color: #2c3137;
	text-align: center;
	padding-top: 25px;
	line-height: 28px;
}
.screen-2__phone{
	width: 928px;
	height: 565px;
	background:url(../images/index/screen-2-phone.png) no-repeat center;
	position: absolute;
	left: 50%;
	margin-left: -464px;
	bottom: -10px;
	z-index: 2;
}

.screen-2__point{
	width: 128px;
	padding-right: 112px;
	height: 22px;
	font-size: 22px;
	line-height: 22px;
	color: #4d555d;
	position: absolute;
	background: url(../images/index/icon-point-right.png) no-repeat center right;
}

.screen-2__point_custom_right{
	padding: 0 0 0 112px;
	background: url(../images/index/icon-point-left.png) no-repeat center left;
}
.screen-2__point_i_1{
	top: 95px;
	left: -50px;
}
.screen-2__point_i_4{
	top: 160px;
	left: -175px;
}
.screen-2__point_i_5{
	top: 320px;
	left: -205px;
}
.screen-2__point_i_6{
	top: 455px;
	left: -60px;
}
.screen-2__point_i_2{
	top: 45px;
	right: 5px;
}
.screen-2__point_i_3{
	top: 210px;
	right: -95px;
}
.screen-2__point_i_7{
	top: 320px;
	right: -185px;
}
.screen-2__point_i_8{
	top: 455px;
	right: -45px;
}
/*第三屏*/
.screen-3{
	/*! background-color: red; */
	height: 800px;
	position: relative;
	overflow: hidden;
	/*! background:url(../images/index/bg-screen-3.png) no-repeat center; */
	background-size: cover;
}

.screen-3__wrap{
	width: 1200px;
	height: auto;
	margin: 0 auto;
	position: relative;
}
.screen-3__heading{
	font-size:46px;
	line-height: 46px;
	color: #f01400;
	text-align: left;
	padding-top: 150px;
}
.screen-3__subheading{
	font-size:20px;
	color: #333;
	text-align: left;
	padding-top: 25px;
	line-height: 28px;
}
.screen-3__phone{
	width: 750px;
	height: 873px;
	background:url(../images/index/screen-3-phone.png) no-repeat center top;
	position: absolute;
	right: 0;
	top: 195px;
	z-index: 2;
}

.screen-3__features{
	position: absolute;
	top: 395px;
	left: 0;
	width: 320px;
	height: 280px;
}
.screen-3__features__item{
	width: 138px;
	height:118px;
	border: 1px solid #cb7173;
	margin: 0 20px 20px 0;
	float: left;
	border-radius: 3px;
	/*! color: #fff; */
	text-align: center;
}
.screen-3__features__item__number{
	height: 36px;
	font-size: 36px;
	line-height: 36px;
	padding: 28px 0 8px;
}
.screen-3__features__item__desc{
	height: 14px;
	font-size: 14px;
	line-height: 14px;
}

/*第四屏*/
.screen-4{
	background-color: #ffffff;
	height: 800px;
	position: relative;
	overflow: hidden;
}

.screen-4__wrap{
	width: 1200px;
	height: auto;
	margin: 0 auto;
	position: relative;
}
.screen-4__heading{
	font-size:46px;
	line-height: 46px;
	color: #f01400;
	text-align: center;
	padding-top: 135px;
}
.screen-4__subheading{
	font-size:14px;
	color: #464a4f;
	text-align: center;
	padding-top: 29px;
	line-height: 28px;
}
.screen-4__type{
	width: 1260px;
	height: 270px;
	position: absolute;
	top: 304px;
	margin-left: 30px;
}
.screen-4__type__item{
	width: 220px;
	margin-right: 90px;
	height: 270px;
	float: left;
	position: relative;
	text-align: center;
	background-size: cover;
}
.screen-4__type__item__color{
	width: 100%;
	height: 14px;
	line-height: 14px;
	font: 14px;
	color: #2c3238;
	position: absolute;	
	bottom: -44px;
}

.screen-4__type__item_i_1{
	background: url('../images/index/phone-1.png') no-repeat left top;
}
.screen-4__type__item_i_2{
	background: url('../images/index/phone-2.png') no-repeat left top;
}
.screen-4__type__item_i_3{
	background: url('../images/index/phone-3.png') no-repeat left top;
}
.screen-4__type__item_i_4{
	background: url('../images/index/phone-4.png') no-repeat left top;
}


.screen-4__type__item__storage{
	width: 100%;
	height: 12px;
	line-height: 12px;
	font: 12px;
	color: #a4a9ae;
	position: absolute;	
	bottom: -66px;
}
/*第五屏*/
.screen-5{
	height: 800px;
	position: relative;
	overflow: hidden;
	background-color: #d9dde1;
}
.screen-5__bg{
	width: 1920px;
	height: 433px;
	background:url(../images/index/bg-screen-5.png)  no-repeat center;	
	background-size: contain;
	position: absolute;
	left: 50%;
	margin-left: -960px;
	bottom: -100px;
}
.screen-5__heading{
	font-size:46px;
	line-height: 46px;
	color: #f01400;
	text-align: center;
	padding-top: 130px;
}
.screen-5__subheading{
	font-size:14px;
	color: #2c3137;
	text-align: center;
	padding-top: 25px;
	line-height: 28px;
}
/*立即购买*/
.screen-buy{
	height: 80px;
	padding: 120px 0;

	position: relative;
	overflow: hidden;
	background: #2b333b url('../images/index/bg-screen-buy.png') center no-repeat;
	text-align: center;
}
.screen-buy__button11{
	height: 80px;
	width: 240px;
	text-align: center;
	line-height: 80px;
	font-size: 24px;
	color: #fff;
	background-color: #f01414;
	display: inline-block;
	border-radius: 3px;
	transition: all .5s;
}
.screen-buy__button:hover{
	box-shadow: 0px 0px 10px rgba(0,0,0,.5);
}


.footer{
	height: 80px;
	line-height: 80px;
	text-align: center;
	color: #fff;
	font-size: 12px;
	background-color: #07111b;
}

/*大纲样式*/
.outline {
    position: fixed;
    padding: 5px 10px;
    bottom: 120px;
    right: 0;
    z-index: 1;
    background-color: #fff;
    box-shadow: 0px 4px 12px 0px rgba(7, 17, 27, 0.1);
    z-index: 3;
}

.outline__item {
    display: block;
    width: 40px;
    height: 30px;
    line-height: 30px;
    padding: 5px 0;
    background: rgb(255,255,255);
    margin: 5px 0px 0px;
    border-top: 1px solid #eee;
    text-align: center;
    color: #93999f;
}
.outline__item:first-child{
    border:none;
}
.outline__item:hover,
.outline__item_status_active{
    color: #f00;
}

.header__nav-item{
	/*width: 30px;
	text-align: center;
	margin: 0;
	padding-left: 40px;*/
}

.header__nav-tip{
	position: absolute;
	width: 30px;
	margin-left: 40px;
	height: 2px;
	background: #f00;
	left: 0;
	bottom: 0px;
	transition:  all .5s;
}