.block1 {
	width: 100%;
	height: 817px;
	padding-top: 181px;
	color: #FFFFFF;
	background: url('../image/bg12.png') no-repeat center / cover;
}

.block1-title {
	font-size: 64px;
	line-height: 88px;
	margin-bottom: 32px;
}

.block1-desc {
	font-size: 20px;
	line-height: 32px;
}

.block2 {
	width: 100%;
	height: 895px;
	padding-top: 80px;
}

.block2-title {
	text-align: center;
}

.block2-desc {
	width: 100%;
	max-width: 1200px;
	font-size: 24px;
	color: #000000;
	line-height: 33px;
	text-align: center;
	margin: 24px auto 80px;
}

.block-left-block {
	width: 289px;
}

.block2-img {
	height: 576px;
	background: url('../image/bao1.png') no-repeat center;
}

.block3 {
	width: 100%;
	height: 817px;
	position: relative;
	background: url('../image/bao2.png') no-repeat 290px bottom / 872px 552px;
	padding-top: 100px;
}

/* .block3::before {
	content: '';
	display: block;
	width: 829px;
	height: 128px;
	background: #FFB700;
	position: absolute;
	left: 0;
	bottom: 0;
} */

.block3-title {

}

.block3-line {
	margin: 26px 0 66px;
}

.block3-desc {
	width: 500px;
	font-size: 20px;
	line-height: 30px;
	position: relative;
	margin-bottom: 24px;
}

.block3-desc::before {
	content: '';
	display: block;
	width: 16px;
	height: 16px;
	background: url('../image/dot.png') no-repeat center / contain;
	position: absolute;
	top: 8px;
	left: -24px;
}

.block4 {
	width: 100%;
	padding: 131px 0 148px;
	background: url('../image/bg16.png') repeat left top / 100%;
}

.block4-title {
	
}

.block4-line {
	margin: 26px 0 48px;
}

.block4-product-item {
	width: 100%;
	height: 500px;
	margin-bottom: 36px;
	padding: 88px 70px 0;
	margin-bottom: 36px;
}

.block4-product-item:nth-of-type(1) {
	background: #000 url('../image/X.png') no-repeat right top / auto 100%;
}

.block4-product-item:nth-of-type(2) {
	background: #000 url('../image/SUPER.png') no-repeat right top / auto 100%;
}

.block4-product-item:nth-of-type(3) {
	background: #000 url('../image/Ultra.png') no-repeat right top / auto 100%;
}
.block4-product-item:nth-of-type(4) {
	background: #000 url('../image/MATTE.png') no-repeat right top / auto 100%;
}
.block4-product-item:nth-of-type(5) {
	background: #000 url('../image/GB.png') no-repeat right top / auto 100%;
}

.block4-product-item:nth-last-of-type(1) {
	margin-bottom: 0;
}

.block4-product-item-title {
	font-size: 50px;
	color: #FFFFFF;
	line-height: 69px;
}

.block4-product-item-product {
	font-size: 32px;
	color: #ffffff;
	margin-bottom: 0;
}

.block4-product-item-desc {
	font-size: 24px;
	color: #FFFFFF;
	line-height: 40px;
	width: 628px;
	margin-top: 10px;
}

.block4-btn {
	margin-top: 48px;
	display: block;
	width: 180px;
	height: 64px;
	text-align: center;
	line-height: 64px;
	font-size: 24px;
	color: #FFFFFF;
	background: rgb(255, 80, 0);
	text-decoration: none;
	position: relative;
	cursor: pointer;
}
.block4-btn img {
	position: absolute;
	width: 100%;
	height: 100%;
	left: 0;
	top: 0;
	z-index: 2;
	opacity: 0;
}
.block4-product-item-special-wrap {

}
.block4-product-special {
	width: 162px;
	height: 56px;
	background: rgba(255,255,255,.14);
	margin-right: 20px;
	font-size: 24px;
	color: #FFFFFF;
}

@media screen and (max-width: 1300px) {
	.block-left-block {
		display: none;
	}
}

@media screen and (max-width: 850px) {
	.block3::before {
		display: none;
	}
	.block4-product-item-desc {
		width: 100%;
	}
}

@media screen and (max-width: 640px) {
	.index-block-title {
		font-size: 28px;
		line-height: 1.5;
	}
	/* block1 */
	.block1 {
		height: 100vw;
		padding-top: 30vw;
	}
	.block1-title {
		font-size: 30px;
		line-height: 1.5;
	}
	.block1-desc {
		font-size: 16px;
		line-height: 1.8;
	}
	
	/* block2 */
	.block2 {
		height: auto;
		padding: 10px 0 0;
	}
	.block2-desc {
		font-size: 16px;
		line-height: 1.8;
		margin-top: 10px;
		margin-bottom: 10px;
		padding: 0 10px;
	}
	.block2-img {
		height: 50vw;
		background-position: left top;
		background-size: cover;
	}
	
	/* block3 */
	.block3 {
		padding: 10px 0;
		height: auto;
		background-position: center bottom;
		background-size: contain;
	}
	.block3-line {
		margin: 10px 0 20px;
	}
	.block3-desc {
		width: 100%;
		font-size: 16px;
		line-height: 1.8;
		padding-left: 20px;
	}
	.block3-desc::before {
		left: 0;
	}
	.block3-desc-wrap {
		padding-bottom: 60vw;
	}
	/* .block4 */
	.block4 {
		padding: 10px 0;
		height: auto;
	}
	.block4-line {
		margin: 10px 0 20px;
	}
	.block4-product-item {
		padding: 10px;
		height: auto;
		margin-bottom: 10px;
	}
	.block4-product-item-title {
		font-size: 18px;
		line-height: 1.5;
	}
	.block4-product-item-desc {
		font-size: 12px;
		line-height: 1.5;
		margin-top: 5px;
	}
	.block4-product-item-product {
		font-size: 16px;
		margin-top: 5px;
	}
	.block4-btn {
		width: 80px;
		height: 32px;
		line-height: 32px;
		font-size: 14px;
		margin-top: 10px;
	}
	.block4-product-special {
		font-size: 12px;
		width: 80px;
		height: 32px;
		margin-top: 10px;
	}
}