/* 顶部banner */
.header-banner {
	width: 100vw;
	height: 100%;
	background-size: 100%;
	background-position: center;
	/* background-image: url(../img/video_banner.png); */
	background-repeat: no-repeat;
	position: relative;
	/* z-index: 1; */
}
/* 顶部导航相关样式 */
.content {
	padding-top: 76px;
}

.nav-header {
	position: fixed;
	left: 0;
	top: 0;
	width: 100vw;
	z-index: 99;
	box-sizing: border-box;
}

.navbar {
	padding: 12px;
	background-color: white;
	margin-bottom: 0px;
	user-select: none;
}

.navbar-nav a {
	color: #000000;
	cursor: pointer;
	margin-right: 10px;
}

.navbar-container {
	padding: 0 340px;
}

.navbar-toggle {
	margin: 0;
}

.nav-item a:hover {
	background: white !important;
	color: #277FFF;
}

.nav-childs {
	position: absolute;
	background-color: white;
	left: 0px;
	top: 60px;
	z-index: 9;
	box-shadow: none;
	border-radius: 5px;
	width: 100px;
	padding: 0;
	text-align: center;
}
.nav-childs.solutions {
	width: 150px;
	left: -30px;
}

.nav-childs li {
	list-style: none;
	height: 0;
	overflow: hidden;
	transition: height .2s;
}
.nav-childs li a {
	padding: 10px;
}

.nav-childs li a:hover {
	color: #277FFF;
	text-decoration: none;
}

.nav-item:hover .nav-childs li {
	height: 36px;
	line-height: 36px;
	box-sizing: border-box;
}

.nav-item:hover .nav-childs {
	box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.5);
}

.nav-item:hover .nav-childs::before {
	box-sizing: content-box;
	width: 0px;
	height: 0px;
	position: absolute;
	top: -15px;
	left: calc(50% - 6px);
	padding: 0;
	border-bottom: 8px solid #FFFFFF;
	border-top: 8px solid transparent;
	border-left: 8px solid transparent;
	border-right: 8px solid transparent;
	display: block;
	content: '';
	z-index: 2;
}

.nav-item:hover .nav-childs::after {
	box-sizing: content-box;
	width: 0px;
	height: 0px;
	position: absolute;
	top: -17px;
	left: calc(50% - 6px);
	padding: 0;
	border-bottom: 8px solid #dedede;
	border-top: 8px solid transparent;
	border-left: 8px solid transparent;
	border-right: 8px solid transparent;
	display: block;
	content: '';
	z-index: 1;
}

.nav-childs li a {
	margin-right: 0;
}

/* .nav-item a:hover:before, */
.first-nav.active {
	color: #277FFF;
}

.first-nav.active:before {
	position: absolute;
	content: "";
	height: 3px;
	width: 100%;
	background-color: #277FFF;
	left: 0;
	bottom: 0;
}

.nav-childs li a.active {
	color: #277FFF;
}

.nav-childs li a.active:hover {
	color: #277FFF;
}

.nav-login-btn {
	background-color: #277FFF;
	padding: 6px 12px;
	font-family: Source Han Sans CN,Arial, Helvetica, sans-serif;
	font-weight: 400;
	border-radius: 5px;
	color: #FFFFFF;
	cursor: pointer;
	margin: 8px;

}

.nav-login-btn:hover {
	opacity: 0.8;
}

/* 小屏幕电脑展示 */
@media screen and (min-width:1024px) and (max-width:1600px) {
	.navbar-container {
		padding: 0 94px;
	}
}

/* 平板 */
@media screen and (min-width:500px) and (max-width:1024px) {
	.navbar-container {
		padding: 0 10px !important;
		display: flex;
		align-items: center;
	}

	.logo img {
		width: 316px;
	}
}

/* 手机 */
@media screen and (min-width:310px) and (max-width:500px) {
	.navbar-container {
		padding: 0;
	}

	.nav-childs {
		left: 0px !important;
	}

	.navbar-header {
		display: flex;
		align-items: center;
	}
	.logo {
		width: 100%;
	}

	.logo img {
		width: 286px;
	}

	.navbar {
		padding: 5px;
	}

	.product-banner {
		min-height: 144px;
	}
}