#nav_scroll {
	position: fixed;
	top: 68px;
}

.part_one {
	padding: 0;
	position: relative;
}

.part_text {
	position: absolute;
	left: 22%;
	top: 35%;
	color: #ffffff;
}

.part_text h1 {
	font-size: 0.625rem;
	font-weight: bold;
}

.part_one img {
	width: 100%;
	max-width: 1920px;
	margin: 0 auto;
	display: block;
}

.part_text p {
	font-size: 0.375rem;
}

.text_p1 {
	padding: 0.46rem 0;
}

.nedd_btn,
.nedd_btn2 {
	display: block;
	width: 3.43rem;
	height: 0.93rem;
	line-height: 0.93rem;
	border: 1px solid #ffffff;
	border-radius: 30px;
	text-decoration: none;
	text-align: center;
	font-size: 0.3125rem;
	color: #ffffff;
	margin-top: 1.4rem;
}

.nedd_btn:hover,
.nedd_btn2:hover {
	background: #ffffff;
	border: 1px solid #ffffff;
	color: #038fee;
	text-decoration: none;
}

.nav_list {
	position: relative;
	margin-top: -0.605rem;
	z-index: 99;
}

.nav_list a {
	float: left;
	display: block;
	width: 33.33%;
	line-height: 1rem;
	text-align: center;
	font-size: 0.3rem;
	color: #038fee;
	text-decoration: none;
	background: #ffffff;
	box-shadow: 1px 1px 5px #ccc;
}

.a_radius {
	border-top-left-radius: 8px;
	border-bottom-left-radius: 8px;
}

.a_radius2 {
	border-top-right-radius: 8px;
	border-bottom-right-radius: 8px;
}

.nav_list a:hover {
	background: #038fee;
	color: #ffffff;
}

.no_border {
	border-left: none!important;
	border-right: none!important;
}

.part_three {
	text-align: center;
	background: url(../img/part3_bg.png) no-repeat #57768f;
	background-size: 100%;
}

.part_three .container {
	overflow: hidden;
}

.list img {
	display: block;
	margin: 20px auto;
	width: 100%;
	max-width: 44px;
}

.list {
	color: #ffffff;
	overflow-x: hidden;
}

.list p {
	margin-top: 15px;
	font-size: 0.21rem;
}

.list .item_box {
	float: left;
	background: rgba(0, 0, 0, 0.5);
	padding: 0.3rem 0.6rem 0.6rem;
	margin-top: 0.85rem;
	position: relative;
	min-height: 341px;
}

.mask_box {
	width: 100%;
	height: 0;
	background: rgba(3, 143, 238, 0.8);
	position: absolute;
	top: 0;
	left: 0;
	z-index: -1;
}

.item_box:hover .mask_box {
	transition: .5s;
	height: 100%;
}

.item_box:hover {
	background: none;
}

.list h4 {
	font-size: 0.28rem;
}

.line {
	width: 40%;
	height: 1px;
	background: #ffffff;
	margin: 0.7rem auto;
}

.part_two,
.part_three,
.part_five {
	text-align: center;
}
.part_two h1,
.part_five h1 {
	font-size: 0.46rem;
	color: #038fee;
	font-weight: bold;
	padding-bottom:0.78rem;
}

.part_three h1 {
	font-size: 0.46rem;
	color: #fff;
	font-weight: bold;
	padding-bottom: 0.78rem;
}
.part_three .title_p {
	color: #c8d0d6;
}
.contact_form h1 {
	font-size: 0.46rem;
	font-weight: bold;
	padding: 1.95rem 0 0.78rem 0;
	color: #ffffff;
}

.contact_form p {
	color: #ffffff;
	line-height: 0.5rem;
}

.part_two p,
.part_three p,
.part_five p {
	line-height: 0.5rem;
}

.empty_box {
	display: none;
	height: 0.9rem;
	width: 100%;
}

.why_box {
	width: 65%;
	margin: 0 auto;
}

.why_box .tongyong,
.why_box2 .tongyong {
	width: 4.4rem;
	height: 4.75rem;
}

.tongyong {
	background: url("../img/liubianxing.png") no-repeat;
	transition: background .5s;
}

.tongyong {
	background-size: 100%;
	text-align: center;
	margin-top: 0.46rem;
}

.tongyong:hover {
	background: url("../img/liubianxing2.png") no-repeat;
	background-size: 100%;
}

.tongyong:hover .img_change {
	display: none;
}

.tongyong:hover {
	color: #ffffff;
}

.tongyong:hover .dis_none2 {
	display: block;
}

.tongyong:hover .empty_box {
	display: block;
}

.why_box img,
.why_box2 img {
	display: block;
	width: 100%;
	max-width: 80px;
	margin: 1.2rem auto 0.4rem;
}

.why_box h4,
.why_box2 h4 {
	font-size: 0.3125rem;
	text-align: center;
	font-weight: bold;
}

.title_p {
	font-size: 0.25rem;
	color: #666666;
}

.line {
	width: 80%;
	height: 1px;
	background: #ffffff;
	margin: 15px auto;
}

.dis_none2 {
	display: none;
	background: none;
	padding: 0.2rem;
	color: #ffffff;
	transition: all .5s;
}

.why_box2 {
	width: 42%;
	margin: -50px auto 0;
}

.chengben_box,
.qiye_box {
	margin-top: -50px;
}

.part_five img {
	width: 100%;
	max-width: 380px;
	display: block;
	margin: 0 auto;
}

.part_five h4 {
	color: #038fee;
	font-size: 0.3125rem;
	padding: 0.78rem 0 0.54rem 0;
}

.five_box p {
	padding: 0 0.6rem;
	text-align: left;
}

.five_box {
	border: 1px solid #eeeeee;
	padding-bottom: 0.6rem;
}

.contact_form {
	background: url(../img/contact_us.png) no-repeat #5a7991;
	background-size: 100%;
	text-align: center;
}

.contact_form select {
	display: block;
	background: rgba(0, 0, 0, 0.5);
	color: #60707c;
	width: 90%;
	height: 35px;
	border: none;
	text-indent: 24px;
}

.contact_form .title_p {
	margin-bottom: 0.7rem;
}

.select2 {
	margin: 0.6rem 0;
}

.input2 {
	margin: 0 20px;
}

.contact_form input {
	background: rgba(0, 0, 0, 0.5);
	border: none;
	height: 35px;
	width: 30%;
	text-indent: 24px;
	border-radius: 5px;
	color: #ffffff;
}

.contact_form button {
	border-radius: 5px;
	background: #9ca1a5;
	color: #ffffff;
	border: none;
	display: block;
	height: 35px;
	padding: 0 0.6rem;
}

.contact_form textarea {
	background: rgba(0, 0, 0, 0.5);
	width: 90%;
	height: 3.2rem;
	padding: 0.2rem 0.6rem;
	border: none;
	border-radius: 5px;
	color: #ffffff;
}

.contact_a {
	display: block;
	width: 4.06rem;
	height: 0.78rem;
	line-height: 0.78rem;
	text-align: center;
	border-radius: 20px;
	background: #038fee;
	color: #ffffff;
	font-size: 0.25rem;
	margin: 30px auto 0.74rem;
}

.part_five .title_p {
	padding-bottom: 20px;
}

.nav_active {
	background: #038fee;
	color: #ffffff;
}

.nedd_btn2 {
	position: absolute;
	right: 10%;
	top: 10%;
	z-index: 1;
	display: none;
}

.form_box {
	width: 50%;
}
a.nav_list_active{
	background: #038fee;
	color: #ffffff;
}
@media screen and (max-width: 1200px) {
	.why_box {
		width: 80%;
		margin: 0 auto;
	}
	.why_box2 {
		width: 56%;
		margin: -50px auto 0;
	}
	.nedd_btn {
		display: none;
	}
	.nedd_btn2 {
		display: block;
	}
	.part_text {
		left: 10%;
		top: 15%;
		font-size: 0.31rem;
	}
}

@media screen and (max-width: 992px) {
	.why_box {
		width: 100%;
		margin: 0 auto;
	}
	.why_box2 {
		width: 68%;
	}
}

@media screen and (max-width: 768px) {
	#nav_scroll {
		position: fixed;
		top: 0;
	}
	.navbar-default {
		position: absolute;
		top: 0;
		border: none;
		background: #ffffff!important;
		border-bottom: 1px solid #eeeeee!important;
	}
	.why_box2 {
		width: auto;
		margin: -50px auto 0;
	}
	.chengben_box,
	.qiye_box {
		margin-top: 0.46rem;
	}
	.why_box img,
	.why_box2 img {
		width: 40%;
	}
	.line {
		margin: 5px auto;
	}
	.contact_form button {
		margin-top: 20px;
	}
	.part_one {
		margin-top: 100px;
	}
	.part_two h1,
	.part_three h1,
	.part_five h1 {
		padding-top: 1rem;
	}
	li.nav_active>a {
		color: #ffffff!important;
	}
	.nedd_btn2 {
		width: 2.43rem;
		top: -20px;
	}
}

@media screen and (max-width: 500px) {
	.tongyong:hover {
		background: url("../img/liubianxing2.png") no-repeat;
		background-size: 100% 105%;
	}
	.why_box .tongyong,
	.why_box2 .tongyong {
		height: 5.5rem;
	}
	.qiye_box {
		margin-top: 0px;
		margin-right: 25px;
	}
	.contact_form input {
		float: none;
		width: 100%;
	}
	.input2 {
		margin: 20px 0;
	}
	.part_one {
		margin-top: 50px;
	}
	.dis_p {
		display: none;
	}
	.form_box {
		width: 100%;
	}
	.contact_form input {
		width: 30%;
	}
	.contact_form select {
		width: 100%;
	}
	.contact_form input {
		width: 30%;
	}
	.contact_form button {
		float: right;
	}
	.contact_form {
		text-align: left;
	}
	.five_box {
		margin-top: 20px;
	}
	.part_text {
		left: 5%;
		top: 18%;
		font-size: 0.31rem;
	}
	.part_text h1 {
		font-size: 0.4rem;
	}
	.part_text p {
		font-size: 0.24rem;
	}
	.text_p1 {
		padding: 0.3rem 0;
	}
}

@media screen and (max-width: 500px) {
	.chengben_box {
		margin-top: -175px;
	}
}

@media screen and (max-width: 375px) {
	.chengben_box {
		margin-top: -160px;
	}
}

@media screen and (max-width: 320px) {
	.chengben_box {
		margin-top: -130px;
	}
	.nedd_btn2 {
		width: 2rem;
		top: -30px;
		right: 0;
	}
	.text_p1 {
		padding: 0.1rem 0;
	}
}