.bg-one {
	background: url(../img/case-bg.png) no-repeat center center;
	height: 1177px;
	position: relative;
}

.con-title {
	position: absolute;
	top: 15%;
	left: 50%;
	transform: translateX(-50%);
	font-size: 60px;
	font-weight: bold;
	color: #006BFF;
	display: flex;
	flex-direction: column;
	align-items: center;
}

.con-san {
	width: 0;
	height: 0;
	border-right: 10px solid transparent;
	border-left: 10px solid transparent;
	border-top: 10px solid rgba(0, 107, 255, 1);
	margin-top: 6px;
	-webkit-animation: bounce-in-top 5s infinite;
	animation: bounce-in-top 2s infinite;
}

.con-san:nth-child(2) {
	margin-top: 49px;
}

.con-san:nth-child(3) {
	opacity: 0.5;
	animation-delay:0.1s;
	-webkit-animation-delay:0.1s; /* Safari 和 Chrome */
}

.con-san:nth-child(4) {
	opacity: 0.2;
	animation-delay:0.2s;
	-webkit-animation-delay:0.2s; /* Safari 和 Chrome */
}

@-webkit-keyframes bounce-in-top {

	38% {
		-webkit-transform: translateY(0);
		transform: translateY(0);
		-webkit-animation-timing-function: ease-out;
		animation-timing-function: ease-out;
		opacity: 1;
	}


	95% {
		-webkit-transform: translateY(-8px);
		transform: translateY(-8px);
		-webkit-animation-timing-function: ease-in;
		animation-timing-function: ease-in;
	}

	100% {
		-webkit-transform: translateY(0);
		transform: translateY(0);
		-webkit-animation-timing-function: ease-out;
		animation-timing-function: ease-out;
	}
}

@keyframes bounce-in-top {

	38% {
		-webkit-transform: translateY(0);
		transform: translateY(0);
		-webkit-animation-timing-function: ease-out;
		animation-timing-function: ease-out;
		opacity: 1;
	}

	95% {
		-webkit-transform: translateY(-8px);
		transform: translateY(-8px);
		-webkit-animation-timing-function: ease-in;
		animation-timing-function: ease-in;
	}

	100% {
		-webkit-transform: translateY(0);
		transform: translateY(0);
		-webkit-animation-timing-function: ease-out;
		animation-timing-function: ease-out;
	}
}


nav>ul li:nth-child(3)::after {
	content: '';
	color: black;
	width: 40px;
	height: 2px;
	background: #7C7C7C;
	border-radius: 1px;
	position: absolute;
	bottom: -10px;
	left: calc(50% - 20px);
}

.nav-bg {
	width: 100%;
	height: 60px;
	background-color: #006BFF;
	position: absolute;
	top: 0;
	left: 0;
	z-index: -10;
}

@media screen and (max-width: 1279px) {
	.bg-one {
		height: 800px;
		background-size: contain;

	}
}

@media screen and (max-width: 1174px) {
	.nav-bg {
		height: 90px;
	}
	.logo{
		margin-top: 20px;
	}
}

@media screen and (max-width: 1075px) {
	.bg-one {
		height: 650px;
		background-size: contain;

	}
}

@media screen and (max-width: 802px) {
	.bg-one {
		height: 550px;
		background-size: contain;

	}
}

.case-bg {
	max-width: 1324px;
	margin: 0 auto;
}

.lable-bg {
	width: 50%;
	height: 150px;
	line-height: 150px;
	background: #006BFF;
	font-size: 60px;
	font-weight: bold;
	color: #FFFFFF;
	text-align: right;
	padding-right: 69px;
	position: relative;
	margin-top: 65px;
	margin-bottom: 117px;
}

.lable-bg::after {
	content: '';
	width: 20px;
	height: 150px;
	background: #006BFF;
	position: absolute;
	top: 0;
	right: -30px;
}

.case-bg2 {
	max-width: 1115px;
	margin: 0 auto;
	position: relative;
	margin-top: 65px;
}

.case-bg2>div {
	position: absolute;
	top: 21px;
	right: 27px;
}

.case-bg3>div {
	position: absolute;
	top: 21px;
	left: 27px;
}

.case-bg2>div>div:nth-child(1) {
	font-size: 24px;
	font-weight: bold;
	color: #444444;
}

.case-bg2>div>div:nth-child(2) {
	width: 46px;
	height: 5px;
	background: #006BFF;
	margin-top: 10px;
}

.case-bg2>div>div:nth-child(3) {
	font-size: 18px;
	font-weight: 400;
	color: #444444;
	margin-top: 20px;
}