main {
	font-family: Arial, sans-serif;
	/* line-height: 1.0; */
	color: #333;
	background-color: #f9fffd;
}

main nav {
	margin-bottom: 60px;
}

main nav ul {
	list-style: none;
	display: flex;
}

main nav ul li {
	margin: 0 5px;
}

main nav ul li a {
	text-decoration: none;
	font-size: 20px;
	color: #000;
}

main nav ul li a:hover {
	text-decoration: none;
	color: #007bff;
}

main nav ul li a:visited,
main nav ul li a:active {
	text-decoration: none;
	color: #007bff;
	font-weight: 500;
}

.currentpage {
	text-decoration: none;
	color: #007bff;
	font-weight: 500;
}

.hero {
	justify-content: space-between;
	align-items: flex-start;
	background-color: #eff6f4;
}

.b1 {
	width: 100%;
	object-fit: cover;
}

.center {
	width: 80%;
	margin: 0 auto;
}

.left-column {
	width: 45%;
	margin: 80px 0 0 0;
	padding-left: 40px;
	float: left;
}

.left-column h2 {
	font-size: 86px;
	margin-top: 0;
	margin-bottom: 80px;
	font-weight: 400;
}

.left-column p {
	font-size: 22px;
	margin-bottom: 20px;
	font-weight: 500;
	align-items: center;
	display: flex;
}

.p1 {
	margin-top: 50px;
}

.left-column p::before {
	content: "";
	display: inline-block;
	width: 30px;
	height: 22px;
	background-image: url("../image/gou.png");
	background-repeat: no-repeat;
	background-position: center;
	margin-right: 10px;
}

.pspan {
	display: block;
	font-size: 22px;
	margin-bottom: 20px;
	margin-left: 38px;
}

.cta-buttons {
	margin-top: 40px;
}

.cta-buttons .button {
	display: inline-block;
	font-size: 22px;
	letter-spacing: 3px;
	padding: 10px 20px;
	margin-right: 30px;
	background-color: #007bff;
	color: #fff;
	text-decoration: none;
	border-radius: 25px;
	transition: background-color 1s ease;
	border: 2px solid #007bff;
}

.button:hover::after {
	content: " ";
	display: inline-block;
	width: 0;
	height: 0;
	border-left: 10px solid transparent;
	border-right: 10px solid transparent;
	border-top: 10px solid #007bff;
	margin-left: 10px;
	transition: background-color 0.5s ease;
}

.cta-buttons .button:hover {
	background-color: transparent;
	color: #007bff;
	border: 2px solid #007bff;
}

.right-column {
	width: 55%;
	float: right;
}

.right-column img {
	width: 100%;
	object-fit: cover;
}

.product-section {
	background-image: url('../image/doctor.jpg');
	padding-top: 80px;
	background-size: cover;
	background-position: center;
	position: relative;
	padding-bottom: 40px;
}

.product-section h2 {
	text-align: center;
	font-size: 86px;
	font-weight: 400;
	letter-spacing: 3px;
}

.product-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	/* 如果浏览器支持 minmax，则使用 minmax */
	/* grid-template-columns: repeat(2, minmax(0, 1fr)); */
	grid-gap: 60px;
	align-items: start;
	margin: 4% 15%;
	margin-bottom: 4%;
}.product-4grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	/* 如果浏览器支持 minmax，则使用 minmax */
	/* grid-template-columns: repeat(4, minmax(0, 1fr)); */
	grid-gap: 60px;
	align-items: start;
	margin: 4% 4%;
	margin-bottom: 4%;
}

 #video5::-webkit-media-controls-volume-control-container {
                 display: none !important;
	         }
 #video5::-internal-media-controls-overflow-button {
                display: none !important;
   			 }
 #video6::-webkit-media-controls-volume-control-container {
                 display: none !important;
	         }
 #video6::-internal-media-controls-overflow-button {
                display: none !important;
   			 }
 #video7::-webkit-media-controls-volume-control-container {
                 display: none !important;
	         }
 #video7::-internal-media-controls-overflow-button {
                display: none !important;
   			 }
.product-item {
	padding: 20px;
	position: relative;
	z-index: 1;
	box-sizing: border-box;
	text-align: center;
	min-height: 358px;
	overflow: visible;
	background-color: #333;
}

.product-item h2 {
	font-size: 30px;
	margin-top: 90px;
	margin-bottom: 10px;
	font-weight: 400;
	letter-spacing: 3px;
}
.swiper-slide h2 {
	font-size: 30px;
	margin-top: 60px;
	margin-bottom: 10px;
	font-weight: 400;
	letter-spacing: 3px;
}
.product-item h3 {
	font-size: 40px;
	margin-bottom: 10px;
	font-weight: 600;
	letter-spacing: 3px;
}

.swiper-slide h3 {
	font-size: 40px;
	margin-bottom: 10px;
	font-weight: 600;
	letter-spacing: 3px;
}

.product-item h3,
.swiper-slide h3,
.product-item h2{
	opacity: 1.5;
	color: #fff;
	overflow: visible;
	transition: all 0.3s ease-in-out;
}
.swiper-slide h2 {
	opacity: 1.5;
	color: #fff;
	overflow: visible;
	transition: all 0.3s ease-in-out;
}

.product-item:active h2,
.product-item:active h3,
.product-item:hover h2,
.product-item:hover h3
{
	opacity: 0;
}

.product-item video {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	opacity: 0.5;
	visibility: visible;
	transition: all 0.3s ease-in-out;
	max-width: 100%;
	/* 设置最大宽度为90% */
	max-height: 70vh;
	/* 设置最大高度为视口高度的70% */
	object-fit: contain;
	/* 保持宽高比 */
}

.product-item:hover video {
	opacity: 1;
	visibility: visible;
}

.swiper-container {
	height: 200px;
	position: relative;
	margin-top: 50px;
}

#investproSwiper .swiper-slide {
	width: 25%;
	height: 200px;
	margin-left: 35px;
	background-color: #003b7d;
	text-align: center;
}

#investproSwiper .swiper-slide .investpro {
	width: 38%;
	height: 200px;
	margin-left: 0.19rem;
	-webkit-transition: all 0.5s linear;
}

#investproSwiper .swiper-slide-active .investpro {
	width: 38%;
	height: 200px;
}

.swiper-container-horizontal>.swiper-pagination {
	height: .5rem;
	text-align: center;
	bottom: 0;
}

.swiper-pagination-bullet {
	background: #fff;
	border-radius: 50%;
	width: .12rem;
	height: .12rem;
	margin-left: .18rem;
	opacity: 1;
}

.swiper-pagination-bullet-active {
	background: #e04531;
}

.investproTab {
	width: 30%;
	height: 358px;
	position: absolute;
	z-index: 2;
	opacity: 0;
}

.investpro-prev {
	left: -3.6rem;
}

.investpro-next {
	right: -3.6rem;
}

.swiper-slide video {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	visibility: visible;
	transition: all 0.3s ease-in-out;
	opacity: 0.5;
	max-width: 100%;
	/* 设置最大宽度为90% */
	max-height: 37vh;
	/* 设置最大高度为视口高度的70% */
	object-fit: cover;
	/* 保持宽高比 */
}

.swiper-slide:hover video {
	opacity: 1;
	visibility: visible;
}
#investproSwiper .swiper-slide:hover {
	background-color: #007aff;
	transition: all 0.5s ease-in-out;	
}

/* 媒体查询 */
@media (max-width: 1024px) {
	.left-column {
		width: 100%;
		padding-left: 0;
		margin-top: 40px;
	}
	
	.left-column h2 {
		font-size: 60px;
		margin-bottom: 60px;
	}
	
	.left-column p {
		font-size: 18px;
	}
	
	.pspan {
		font-size: 18px;
		margin-left: 0;
	}
	
	.cta-buttons .button {
		font-size: 18px;
		padding: 8px 16px;
		margin-right: 20px;
	}
}

@media (max-width: 768px) {
	.left-column h2 {
		font-size: 35px;
		margin-bottom: 40px;
	}
	
	.left-column p {
		font-size: 16px;
	}
	
	.pspan {
		font-size: 16px;
	}
	
	.cta-buttons .button {
		font-size: 16px;
		padding: 6px 12px;
		margin-right: 15px;
	}
}

@media (max-width: 480px) {
	.left-column h2 {
		font-size: 36px;
		margin-bottom: 30px;
	}
	
	.left-column p {
		font-size: 14px;
	}
	
	.pspan {
		font-size: 14px;
	}
	
	.cta-buttons .button {
		font-size: 14px;
		padding: 5px 10px;
		margin-right: 10px;
	}
}