#nav{
	position: sticky;
	top: 0;
	left: 0;
	width: 100%;
	background-color: #fff;
	height: var(--nav-height-70);
	z-index: 2;
	box-shadow: 0px 1px 6px 0px rgba(0,0,0,0.05);
}

.middle-width{
	position: relative;
	width: 1280px;
	margin:  0 auto;
}
.web-menu-nav{
	text-decoration: none;
	color: var(--primary-color);
	padding-right: 80px;
	font-size: 16px;
}
.web-menu-nav:last-child{
	padding-right: 0;
}


#footer{
	padding: 80px  0 74px;
	background: #141821;
	cursor: pointer;
}
.footer{
	flex-wrap:wrap
}
.footer-left{
	margin-right: 20px;
}
.footer-left-img{
	margin-right: 15px;
}
.footer-left-title{
	font-size: 18px;
	color: #FFFFFF;
	font-weight: bold;
	line-height: 27px;
}

.footer-left-sub{
	font-size: 18px;
	color: #FFFFFF;
	line-height: 27px;
}
.footer-left-size{
	margin-bottom: 14px;
}

.footer-title{
	font-weight: bold;
	font-size: 24px;
	color: #FFFFFF;
	line-height: 36px;
	margin-bottom: 40px;
}

.footer-font{
	position: relative;
	display: inline-block;
	font-size: 18px;
	color: #FFFFFF;
	text-decoration: none;
	line-height: 27px;
	margin-bottom: 30px;
	cursor: pointer;
}

.footer-font:last-child{
	margin-bottom: 0;
}

.footer-font:after{
	position: absolute;
	content: "";
	bottom: -4px;
	left: 50%;
	width: 0;
	height: 3px;
	background: #fff;;
	border-radius: 2px;
	transform: translateX(-50%);
	transition: width 0.28s cubic-bezier(.37,.8,.69,.32); 
}
.footer-font:hover:after{
	width: 100%;
}
.footer-right-left{
	margin-right: 100px;
}


@media screen and (max-width: 1290px) {
  .middle-width{
		width: 90%;
	}
	
	.web-menu-nav{
		padding-right: 30px;
		font-size: 14px;
	}
	
	.footer-right-left{
		margin-right: 30px;
	}
	.footer-title{
		font-size: 20px;
	}
	.footer-font{
		font-size: 16px;
	}
	.footer-left-title{
		font-size: 16px;
	}
	.footer-left-sub{
		font-size: 16px;
	}
}
@media screen and (max-width: 930px) {
	.footer{
		display: block;
		text-align: center;
	}
	.footer-left{
		display: inline-block;
    margin-bottom: 40px;	
	  margin-right: 0;
		text-align: left;
	}
	.footer-right{
		display: block;
		text-align: center;
	}
	.footer-right-left{
		margin-bottom: 40px;
	}
}

@media screen and (max-width: 750px) {
  .middle-width{
		width: 90%;
	}
	.w490{
		width: 90%;
	}
	.font-title{
		text-align: center;
		font-size: 24px;
	}
	.font-sub{
		text-align: center;
		font-size: 14px;
	}
}