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

.part_one img {
	width: 100%;
}

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

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

.intr_p {
	padding-bottom: 0.8rem;
	font-size: 0.625rem;
	font-weight: bold;
}

.mar_t_40 {
	margin-top: 0.625rem;
}

.intr_p2 {
	font-size: 0.31rem;
	color: #888888;
	padding-bottom: 1rem;
}

.case_dl {
	padding-bottom: 0.61rem;
	box-shadow: 0 0 20px #ccc;
	border-radius: 8px;
	min-height: 440px;
}

.case_dl img {
	width: 100%;
	max-width: 570px;
	border-radius: 8px;
}

.title_dd {
	font-size: 0.38rem;
	text-align: center;
	padding: 0.4rem;
	font-weight: bold;
}

.title_dd2 {
	padding-bottom: 0.2rem;
}

.title_dd2 {
	padding-bottom: 0.2rem;
}

.case_one {
	color: #038fee;
}

.case_two {
	color: #eab45e;
}

.case_three {
	color: #f7674a;
}

.case_four {
	color: #ff7302;
}

.case_five {
	color: #01c192;
}

.case_six {
	color: #167fd8;
}

.case_seven {
	color: #ffb401;
}

.case_eight {
	color: #4f76ec;
}

.content_dd {
	line-height: 0.5rem;
	color: #555555;
	text-align: center;
	font-size: 0.26rem;
	padding: 0 0.7rem;
}
.part_text {
	position: absolute;
	left: 22%;
	top: 35%;
	color: #ffffff;
}

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

.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;
}

.nedd_btn2 {
	position: absolute;
	right: 10%;
	top: 0;
	z-index: 1;
	display: none;
}

@media screen and (max-width: 1200px) {
	.part_text {
		left: 10%;
		top: 15%;
		font-size: 0.31rem;
	}
	.part_text h1 {
		font-size: 0.5rem;
	}
	.part_text p {
		font-size: 0.31rem;
	}
	.nedd_btn {
		display: none;
	}
	.nedd_btn2 {
		display: block;
	}
	.case_dl{
		min-height: 390px;
	}
}

@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;
	}
	.part_one {
		margin-top: 100px;
	}
	li.nav_active>a {
		color: #ffffff!important;
	}
	.nedd_btn2 {
		width: 2.43rem;
		top: -20px;
	}
}

@media screen and (max-width: 500px) {
	.case_dl {
		min-height: 229px;
		padding-bottom: 0;
	}
	.part_one {
		margin-top: 50px;
	}
	.part_text {
		left: 5%;
		top: 12%;
		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: 320px) {
	.case_dl {
		min-height: 300px;
		padding-bottom: 0;
	}
	.part_one {
		margin-top: 50px;
	}
	.part_text {
		top: 12%;
	}
	.text_p1 {
		padding: 0.1rem 0;
	}
	.nedd_btn2 {
		width: 2rem;
		top: -30px;
		right: 0;
	}
}