.first_box {
	height: 100%;
	background-image: url('../img/bg.jpg');
	background-size: 100%;
	background-repeat: no-repeat;
	background-position: center top;
	color: #fff;
	padding: 1px;
	position: relative;
}

.first_box .title_box {
	margin-top: .8rem;
	height: calc(100% - 5rem);
	position: relative;
}

.first_box .align_box {
	position: absolute;
	top: 45%;
	left: 0;
	width: 100%;
	margin-top: -.65rem
}

.first_box .title {
	font-size: .52rem;
}

.first_box .small_title {
	font-size: .24rem;
	margin-top: .3rem;
}

.first_box .more_box {
	height: 4.2rem;
	width: 100%;
	position: absolute;
	bottom: 0;
	left: 0;
	background: rgba(0, 0, 0, 0.5);
	padding: .88rem 0;
}

.more_box .more_big_text {
	font-size: .36rem;
}

.more_box .more_small_text {
	font-size: .18rem;
	margin-top: .2rem;
}

.more_box .btn {
	display: inline-block;
	width: 1.5rem;
	height: .5rem;
	line-height: .5rem;
	background: #3586ea;
	font-size: .16rem;
	margin-top: .4rem;
}

.more_box .mouse img {
	width: .24rem;
	margin-top: .3rem;
}

.content {
	padding-top: 0;
}

.message_box {
	padding: 1rem 2.1rem;
}

.message_box .message_item {
	padding: .3rem .2rem;
	box-shadow: 0 0 .2rem rgba(0, 0, 0, 0.2);
	margin: 0 .3rem;
	width: calc(33% - .6rem);
	height: 6.2rem;
	opacity: 0;
}

.message_box.active .message_item {
	opacity: 1;
}

.message_box.active .message_item.latest {
	transition: opacity .5s .2s;
}

.message_box.active .message_item.news {
	transition: opacity .5s .4s;
}

.message_box.active .message_item.share {
	transition: opacity .5s .6s;
}

.message_box .message_item .item_title {
	font-size: .24rem;
	font-weight: bold;
	padding: 0 .1rem;
}

.message_box .message_item .item_small_title {
	font-size: .16rem;
	color: #666;
	padding: 0 .1rem;
	margin-top: .1rem;
	margin-bottom: .25rem;
}

.message_box .message_item .img {
	width: 100%;
	height: 1.8rem;
	overflow: hidden;
}

.message_box .message_item .message_text {
	height: 2.1rem;
	overflow: hidden;
	font-size: .16rem;
}

.message_box .message_item .message_text .message_title {
	padding-left: .1rem;
	line-height: .54rem;
}

.message_box .message_item .message_text .message_detail {
	padding-left: .1rem;
	color: #666;
	line-height: .26rem;
}

.message_box .message_item .message_text li {
	line-height: .42rem;
	height: .42rem;
	border-bottom: 1px solid #eee;
	background-image: url(../img/arrow.png);
	background-size: .11rem;
	background-repeat: no-repeat;
	background-position: .1rem center;
	padding-left: .36rem;
}

.message_box .message_item .message_text li:last-child {
	border-bottom: 0;
}

.message_box .message_item .message_text li:hover {
	background-image: url(../img/arrow_hover.png);
}

.message_box .message_item .message_text li a {
	display: block;
	color: #666;
}

.message_box .message_item .message_text li:hover a {
	text-decoration: underline;
	color: #3586ea;
}

.message_box .message_item .message_btn {
	display: inline-block;
	width: 1.2rem;
	height: .5rem;
	text-align: center;
	line-height: .5rem;
	color: #3586ea;
	font-size: .16rem;
	border: 1px solid #3586ea;
	margin-top: .35rem;
	margin-left: .1rem;
}

.message_box .message_item .message_btn:hover {
	color: #fff;
	background-color: #3586ea;
	border: 1px solid #3586ea;
}

.why_box {
	height: 3.2rem;
	color: #fff;
	background-image: url('../img/blue_bg.jpg');
	background-size: 100% 100%;
	padding: .7rem 0;
}

.why_box .why_title {
	font-size: .36rem;
	margin-bottom: .2rem;
}

.why_box .line {
	display: inline-block;
	width: 1.4rem;
	height: 2px;
	background-color: #fff;
	margin-bottom: .3rem;
}

.why_box .text {
	font-size: .16rem;
	line-height: 1.8;
}

.box_row {
	position: relative;
}

.box_row .l {
	opacity: 0;
}

.box_row .r {
	opacity: 0;
}

.four_box.active .box_row .l {
	opacity: 1;
	transition: opacity .5s .2s;
}

.four_box.active .box_row .r {
	opacity: 1;
	transition: opacity .5s .4s;
}

.box_row_text {
	position: absolute;
	top: 0;
	height: 100%;
}

.box_row_text.r {
	right: 0;
}

.box_row_text.l {
	left: 0;
}

.four_box .about {
	padding: .7rem 1.5rem .5rem .7rem;
}

.four_box .industry {
	padding: 1rem;
	padding-left: 1.55rem;
}

.four_box .box_title {
	font-size: .24rem;
	font-weight: bold;
}

.four_box .box_text {
	font-size: .16rem;
	line-height: 1.8;
	margin-top: .5rem;
}

.small_box .box_item {
	width: 1.2rem;
	height: 1.5rem;
	box-shadow: 0 0 .2rem rgba(0, 0, 0, .2);
	text-align: center;
	padding-top: .18rem;
	margin-right: .35rem;
	margin-top: .4rem;
}

.small_box .box_item img {
	width: .6rem;
}

.small_box .box_item .box_item_text {
	font-size: .14rem;
	margin-top: .14rem;
}

.box_row .btn {
	display: inline-block;
	width: 1.2rem;
	height: .5rem;
	line-height: .5rem;
	text-align: center;
	border: 2px solid #3586ea;
	color: #3586ea;
	margin-top: .4rem;
	font-size: .16rem;
}

.box_row .btn:hover {
	border: 2px solid #3586ea;
	background-color: #3586ea;
	color: #fff;
}

.logo_box {
	height: 3.2rem;
	color: #fff;
	background-image: url('../img/red_bg.jpg');
	background-size: 100% 100%;
	padding: 1.1rem 0;
}

.logo_box img {
	width: 2.14rem;
	margin: 0 .5rem;
}

.content_banner_four {
	margin-top: 0.04rem;
	width: 100%;
	background-color: black;
	display: flex;
	padding-left: 15%;
	padding-right: 15%;
	padding-top: 0.46rem;
	padding-bottom: 0.6rem;
	color: white;
}

.content_banner_four .content_banner_four_item {
	width: 25%;
	cursor: pointer;
	text-align: center;
}

.content_banner_four_item :first-child {
	font-size: 0.42rem;
	font-weight: 800;
}

.content_banner_four_item .four_item_line {
	border-bottom: #fff solid 3px;
	width: 40%;
	margin-left: 30%;
	margin-bottom: 0.18rem;
	height: 0.08rem;
}

.content_banner_four_item :last-child {
	font-size: 0.18rem;
}

.content_grey {
	width: 100%;
	background-color: #d8d8d8;
}

.content_grey_first {
	width: 100%;
	padding-left: 35%;
	padding-right: 35%;
	text-align: center;
	padding-top: 0.9rem;
	padding-bottom: 0.9rem;
}

.content_grey_first :first-child {
	font-size: 0.36rem;
	font-weight: 800;
	padding-bottom: 0.06rem;
}

.content_grey_first :last-child {
	font-size: 0.18rem;
	font-weight: 600;
}

.grey_content_img {
	display: flex;
	width: 100%;
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
	color: white;
	padding-left: 0.1rem;
	padding-right: 0.1rem;
	height: 5rem;
}

.grey_content_img .img_6_4 {
	position: relative;
	/* 确保伪元素定位基于该容器 */
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
	margin: 0.15rem;
	padding: 0.65rem;
	width: 60%;
	cursor: pointer;
}

.img_6_4::after {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 0, 0, 0.5);
	/* 半透明蒙版 */
	pointer-events: none;
	z-index: 1;
	/* 设置蒙版的层级 */
}

.grey_content_img .img_4_6 {
	position: relative;
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
	margin: 0.15rem;
	padding: 0.65rem;
	width: 40%;
	cursor: pointer;
}

.img_4_6::after {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 0, 0, 0.5);
	/* 半透明蒙版 */
	pointer-events: none;
	z-index: 1;
	/* 设置蒙版的层级 */
}

.grey_content_img .title {
	position: relative;
	/* 确保内容相对于父元素定位 */
	z-index: 2;
	/* 设置内容在蒙版之上 */
	/* 根据背景调整文字颜色 */
	padding-top: 1rem;
	color: #fff;
	font-size: 0.43rem;
	font-weight: 400;
	padding-bottom: 0.3rem;
}

.grey_content_img .desc {
	position: relative;
	z-index: 2;
	color: #fff;
	font-size: 0.24rem;
	font-weight: 400;
	padding-bottom: 0.3rem;
}

.grey_content_img .more {
	position: relative;
	z-index: 2;
	color: #fff;
	font-size: 0.24rem;
	font-weight: 400;
	padding-bottom: 0.3rem;
}

.grey_banner {
	padding-top: 0.8rem;
	background-color: #d8d8d8;
	color: white;
}

.grey_banner img {
	width: 100%;
}

.grey_banner .grey_banner_title {
	width: 30%;
	margin-left: 35%;
	text-align: center;
	position: absolute;
	font-size: 0.38rem;
	font-weight: 600;
	margin-top: 0.95rem;
}

.grey_banner .grey_banner_desc {
	position: absolute;
	width: 40%;
	margin-left: 30%;
	text-align: center;
	position: absolute;
	font-size: 0.22rem;
	font-weight: 400;
	margin-top: 1.7rem;
}

.grey_swiper {
	width: 100%;
	padding-left: 5%;
	padding-right: 5%;
	padding-top: 1.4rem;

}

.grey_swiper_title {
	width: 100%;
	text-align: center;
	font-size: 0.32rem;
	font-weight: 600;
}

.grey_swiper_desc {
	width: 100%;
	padding-top: 0.4rem;
	text-align: center;
	font-size: 0.22rem;
	font-weight: 600;
}


.grey_swiper_content {
	width: 100%;
	padding-top: 0.6rem;
	display: -webkit-box;
	padding-bottom: 0.6rem;
	overflow-x: scroll;
	scrollbar-width: none;
}

.grey_swiper_content::-webkit-scrollbar {
	display: none;
	/* 对于 Chrome, Safari 和 Opera 隐藏滚动条 */
}

.grey_swiper_content_item {
	padding-left: 0.1rem;
	padding-right: 0.1rem;
	width: 25%;
	cursor: pointer;
}

.swiper_item_logo {
	width: 100%;
	display: -webkit-box;
	padding: 0.25rem;
	height: 6rem;
	border-radius: 0.1rem;
	margin-top: 0.4rem;
	position: relative;
	overflow: hidden;
	/* 确保蒙层不溢出 */
	z-index: 0;
	/* 背景层 */
}


.o1 {
	background: url('../img/indexgrey/fullcar.jpeg');
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
}

.o2 {
	background: url('../img/indexgrey/carthing.jpeg');
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
}

.o3 {
	background: url('../img/indexgrey/ele.jpeg');
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
}

.o4 {
	background: url('../img/indexgrey/mark.jpg');
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
}

.o5 {
	background: url('../img/indexgrey/maching.jpg');
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
}

.o6 {
	background: url('../img/indexgrey/sun.jpg');
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
}

.o7 {
	background: url('../img/indexgrey/food.jpg');
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
}

.o8 {
	background: url('../img/indexgrey/med.jpg');
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
}

.swiper_item_logo_img {
	width: 45%;
	margin: 0.07rem;
	border-radius: 0.08rem;
	display: none;
	position: relative;
	z-index: 2;
}

.swiper_item_logo_img.show {
	display: inline-block;
	/* 显示时更改为块级或行内块 */
}

.swiper_item_title {
	width: 100%;
	text-align: center;
	font-size: 0.18rem;
	font-weight: 600;
}

.swiper_item_bg {
	width: 100%;
	height: 6rem;
	border-radius: 0.1rem;
}

.grey_swiper_content {
	width: 100%;
	overflow: hidden;
	position: relative;
}

.grey_swiper_content_inner {
	width: 100%;
	will-change: transform;
	display: -webkit-box;
}

/* Hover 暂停动画 */
.grey_swiper_content_item:hover {
	animation-play-state: paused;
}

@keyframes scroll {
	0% {
		transform: translateX(0);
	}

	100% {
		transform: translateX(-100%);
	}
}

/* swiper_item_title 高亮样式 */
.swiper_item_title.highlight {
	color: #004098;
	/* 高亮颜色，可自定义 */
	font-weight: bold;
	text-shadow: 0px 0px 5px rgba(0, 64, 152, 0.4);
}

/* 半透明蒙层样式 */
.swiper_item_logo::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.5);
	/* 半透明黑色 */
	border-radius: inherit;
	z-index: 1;
	/* 蒙层层级在图片之下 */
	opacity: 0;
	transition: opacity 0.3s ease;
	/* 平滑过渡 */
}

/* 激活状态时显示蒙层 */
.swiper_item_logo.active::before {
	opacity: 1;
	/* 悬停时显示蒙层 */
}


.message_mid_title {
	width: 100%;
	height: 1rem;
	text-align: center;
	font-size: 0.32rem;
	font-weight: 600;
	margin-bottom: 0.6rem;
}

@media screen and (max-aspect-ratio:1920/1080) {
	.first_box {
		background-size: auto 100%;
	}
}

@media screen and (min-aspect-ratio:1920/1080) {
	.first_box {
		background-size: 100% auto;
	}
}

@media screen and (min-width: 1921px) {
	.first_box {
		background-size: 100% 100% !important;
	}
}

@media (max-width: 768px) {
	.first_box .more_box {
		height: 120px;
	}

	.more_box .btn {
		width: 120px;
		height: 30px;
		line-height: 30px;
	}

	.more_box .mouse img {
		display: none;
	}

	.message_box .message_item {
		width: calc(100% - .6rem);
		height: auto;
	}

	.message_box .message_item .img {
		height: auto;
	}

	.message_box .message_item .message_text {
		height: auto;
		font-size: 12px;
	}

	.message_box .message_item .message_text .message_title {
		line-height: 54px;
	}

	.message_box .message_item .message_text .message_detail {
		line-height: 26px;
	}

	.message_box .message_item .message_btn {
		width: 60px;
		height: 24px;
		line-height: 24px;
		font-size: 12px;
	}

	.message_box .message_item .message_text li {
		height: 34px;
		line-height: 34px;
	}

	.why_box {
		height: 160px;
	}

	.box_row_text {
		position: relative;
	}

	.small_box .box_item {
		width: 120px;
		height: 150px;
		box-shadow: 0 0 0.2rem rgba(0, 0, 0, .2);
		text-align: center;
		padding-top: 18px;
		margin-right: .35rem;
		margin-top: .4rem;
	}

	.small_box .box_item img {
		width: 60px;
	}

	.box_row .btn {
		width: 120px;
		height: 50px;
		line-height: 50px;
	}

	.four_box .about {
		padding: 1rem;
	}

	.four_box .industry {
		padding-left: 1rem;
	}
}