.footer {
	position: relative !important;
}

ul {
	list-style: none;
}

.container-about {
	width: 100%;
	height: auto;
	margin: 0 auto;
	font-family: '思源黑体regular', 'Microsoft YaHei';
	padding-bottom: 5%;
}

.about-us {
	width: 100%;
	height: 100%;
	text-align: center;
	margin-left: auto;
	margin-right: auto;
}
.about-us .text {
	/* margin-top: 12%; */
	margin-left: 10%;
	/* text-indent: 1cm; */
	text-align: left;
	/* line-height: 40px; */
	/* letter-spacing: 2px;
			line-height: 2; */
	text-rendering: optimizeLegibility;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	font-kerning: auto;
	/* font-size: 1.5rem; */
	width: 90%;
}
.about-us .first {
	width: 80%;
	margin: 0 auto;
	margin-top: 17%;
	/* margin-top: 10%; */
	/* font-size: 1.75rem; */
}

 .about-us .first img {
	width: 70%;
	height: auto;
	margin-top: 25%;
}

.about-us .prd-nav {
	padding: 12px 0px;
}

.about-us .prd-nav ul {
	list-style: none;
	display: flex;
	margin: 0px;
	padding: 0px;
	font-size: 18px;
	font-weight: 600;
}

.about-usv .prd-nav ul li {}

.about-us .prd-nav ul li i {
	padding: 0px 6px;
}

.about-us .float-left {
	float: left;
}



.about-us .about-img {
	padding-top: 10px;
	padding-bottom: 10px;
}



.about-us .second {
	background-color: #e6ecfb;
	/* 	width: 80%;
			margin: 0 auto; */
	/* 	height: 50vw; */
	margin-top: 15%;
	padding-top: 10%;
	padding-bottom: 10%;
}

.about-us .second h2 {
	/* color: #0a46dc; */
	color: #C00000;
	margin-top: -5%;
	margin-bottom: 5%;
}

.about-us .second img {
	width: 80%;
	height: auto;
}

.about-us .second_right {
	padding-right: 10%;
}

.about-us .third {
	margin-top: 15%;
	display: flex;
}

.about-us .third .third-box {
	width: 27%;
	margin-left: 5%;
	background-color: #f3f6fd;
	padding-top: 5%;
	padding-bottom: 5%;
	box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}

.about-us .third .third-box h2 {
	margin-top: 10%;
	margin-bottom: 10%;
}

.about-us .third-box p {
	text-align: left;
	margin-left: 10%;
	font-size: 1.2rem;
}


.arrow {
	border: 9px solid transparent;
	border-bottom-color: #3DA0DB;
	width: 0px;
	height: 0px;
	top: 0px
}

.stick {
	width: 8px;
	height: 14px;
	border-radius: 1px;
	background-color: #3DA0DB;
	top: 15px;
}

#back_top div {
	position: absolute;
	margin: auto;
	right: 0px;
	left: 0px;
}

#back_top {
	background-color: #dddddd;
	height: 38px;
	width: 38px;
	border-radius: 3px;
	display: block;
	cursor: pointer;
	position: fixed;
	right: 50px;
	bottom: 100px;
	display: none;
	z-index: 9;
}