.mt-100 {
	margin-top: 100rem;
}

.w-80 {
	width: 80%;
}

.box {
	margin: 100rem auto;
}

.banner {
	width: 800rem;
	height: 360rem;
	margin: 0 auto;
	position: relative;
}

.banner img {
	width: 800rem;
	height: 360rem;
}

.banner-title-box {
	width: 1200rem;
	font-size: 40rem;
	color: #000;
	margin: 30rem auto;
	font-weight: 600;
}

.banner-title-box .title {
	text-align: center;
	font-weight: 500;
}

.banner-title-box .sub-title {
	text-align: center;
	font-size: 30rem;
}

.case-item {
	width: 1600rem;
	margin: 0 auto;
	background: rgba(225, 234 , 255,.3);
	display: flex;
	/* padding: 60rem 0; */
	box-sizing: border-box;
}

.tags {
	display: flex;
}

.tag-item {
	width: 120rem;
	height: 30rem;
	text-align: center;
	line-height: 30rem;
	border-radius: 6px;
	font-family: PingFang SC;
	font-weight: 500;
	margin-right: 10rem;
	font-size: 16rem;
	color: rgb(220, 155, 4);
	background: rgba(255, 198, 10, 0.2);
}

.case-item .case-item-left {
	flex: 1;
	padding: 60rem;
	box-sizing: border-box;
}

.case-item .case-item-right {
	flex: 1;
	padding: 60rem;
	box-sizing: border-box;
	display: flex;
}

.case-item .case-item-right img {
	width: 100%;
}



.case-item .case-item-left .title {
	font-size: 30rem;
	box-sizing: border-box;
	margin-top: 30rem;
	font-family: PingFang SC;
	font-weight: 600;
	line-height: 40rem;
	color: #1f2329;
	white-space: pre-wrap;
}

.case-item .case-item-left .company {
	font-size: 18rem;
	padding: 10rem 20rem;
	box-sizing: border-box;
}

.case-item .case-item-left .background-title {
	font-size: 24rem;
	font-family: PingFang SC;
	color: #646a73;
	margin-top: 30rem;
}

.case-item .case-item-left .company-background {
	font-size: 18rem;
	font-family: PingFang SC;
	color: #646a73;
	line-height: 40rem;
	margin-top: 30rem;
}

.btn-box {
	width: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 20rem auto;
}

.btn {
	width: 100%;
	height: 50rem;
	font-size: 20rem;
	border: 1px solid #419EFE;
	color: #419EFE;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: all 0.3s;
}

.btn a {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	height: 50rem;
}

.btn:hover {
	background-color: #419EFE;
	color: white;
}

.banner2 {
	position: relative;
	margin: 30rem auto 340rem auto;
}

.video2 {
	width: 400rem; 
	height: 700rem; 
	margin: 0 auto;
}


 /* 屏幕小于768 */
 	
 @media screen and (max-width: 768px) {
	 
	 .mt-100 {
	 	margin-top: 700rem;
	 }
	 
	.banner {
		width: 1800rem;
		margin: 0 auto;
		position: relative;
	}
	
	
	
	.banner img {
		width: 1800rem;
	}
	
	.banner-title-box {
		width: 1800rem;
		font-size: 80rem;
		color: #000;
		margin: 100rem auto;
		font-weight: 600;
	}
	
	.banner-title-box .title {
		text-align: center;
		font-weight: 600;
	}
	
	.banner-title-box .sub-title {
		text-align: center;
		font-size: 76rem;
	}
	
	.box {
		width: 1800rem;
	}
	
	.tag-item {
		width: 360rem;
		height: 100rem;
		text-align: center;
		line-height: 100rem;
		border-radius: 6px;
		font-family: PingFang SC;
		font-weight: 500;
		margin-right: 30rem;
		font-size: 60rem;
		color: rgb(220, 155, 4);
		background: rgba(255, 198, 10, 0.2);
	}
	
	.case-item {
		width: 1800rem;
		margin: 0 auto;
		display: block;
		
	}
	
	.case-item .case-item-left {
		width: 1800rem;
		/* padding: 30rem 60rem; */
		box-sizing: border-box;
	}
	
	.case-item .case-item-right {
		width: 1800rem;
		display: flex;
	}
	
	.case-item .case-item-right img {
		width: 100%;
	}
	
	
	
	.case-item .case-item-left .title {
		font-size: 70rem;
		padding: 30rem;
		box-sizing: border-box;
	}
	
	.case-item .case-item-left .company {
		font-size: 60rem;
		padding: 10rem 20rem;
		box-sizing: border-box;
	}
	
	.case-item .case-item-left .background-title {
		font-size: 60rem;
		padding: 0 30rem;
		box-sizing: border-box;
	}
	
	.case-item .case-item-left .company-background {
		font-size: 60rem;
		line-height: 100rem;
		padding: 60rem;
		box-sizing: border-box;
	}
	
	.btn-box {
		width: 100%;
		height: 200rem;
		display: flex;
		align-items: center;
		justify-content: center;
	}
	
	.btn {
		width: 100%;
		height: 160rem;
		font-size: 60rem;
		border: 1px solid #419EFE;
		color: #419EFE;
		display: flex;
		align-items: center;
		justify-content: center;
		transition: all 0.3s;
	}
	
	.btn:hover {
		background-color: #419EFE;
		color: white;
	}
	
	.banner2 {
		width: 100%;
		height: 2200rem;
		margin: 60rem auto 60rem auto;
	}
	
	.video2 {
		width: 60%;
		height: 2200rem;
	}
	
	
 }