*,
*::before,
*::after {
	box-sizing: border-box;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
dl,
dd,
ol,
ul,
figure,
hr,
fieldset,
legend {
	margin: 0;
	padding: 0;
}

ol,
ul {
	list-style: none;
}

table {
	border-collapse: collapse;
	border-spacing: 0;
}

input,
button,
textarea,
select {
	font: inherit;
	margin: 0;
	padding: 0;
	background: none;
	border: none;
	outline: none;
}

a {
	text-decoration: none;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	line-height: 1.5;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	max-width: 2000px;
	margin: 0 auto;
	letter-spacing: 1px;
}

/* 3. 段落间距 */
p+p {
	margin-top: 1em;
}

.banner {
	width: 100%;
	margin-top: 8px;
}

.banner img {
	width: 100%;
}

.part {
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
}

.box_shadow {
	box-shadow: 0px 0px 8px #d8d8d8;
	border-radius: 10px;
	margin: 30px auto;
}


.ranks {
	box-sizing: border-box;
	margin: 0 auto;
	transition: width 0.2s ease;
	width: 80%;
}

.ranks_list {
	display: grid;
	gap: 25px;
}

.module {
	display: flex;
	flex-direction: column;
}

.Two_columns {
	grid-template-columns: repeat(2, 1fr);
}

.Three_columns {
	grid-template-columns: repeat(3, 1fr);
}

.Four_columns {
	grid-template-columns: repeat(4, 1fr);
}

@media screen and (max-width:1000px) {
	.Four_columns {
		grid-template-columns: repeat(2, 1fr);
	}
}

/* 当屏幕宽度 < 750px */
@media (max-width: 750px) {
	.Two_columns {
		grid-template-columns: repeat(1, 1fr);
	}

	.Three_columns {
		grid-template-columns: repeat(1, 1fr);
	}

	.Four_columns {
		grid-template-columns: repeat(1, 1fr);
	}
}




@media screen and (max-width:1620px) {
	.ranks {
		width: 90%;
	}
}

@media screen and (max-width:1200px) {
	.ranks {
		width: 98%;
	}

	.ranks_list {
		gap: 16px;
	}
}





/* 标题 */
.t_title {
	text-align: center;
	margin: 10px auto;
}

.t_title h3 {
	font-size: 1.25rem;
	color: #313d49;
                font-weight: 500;
}





/* 相关产品 */
#Related_products {
	padding: 20px 0;
}

#Related_products>a {
	box-shadow: 0px 0px 8px #d8d8d8;
	text-align: center;
	padding: 10px;
	border-radius: 10px;
}

#Related_products>a img {
	width: 100%;
	border-radius: 10px;
	display: flex;
}

#Related_products>a p {
	font-size: 14px;
	color: #666;
	margin: 15px 0 10px;
}

/* 面包屑 */
.crumbs {
	padding-top: 30px;
}

.crumbs ul {
	display: flex;
	align-items: center;
}

.crumbs ul li {
	padding-left: 10px;
}

.crumbs ul li a {
	color: #444;
}

.crumbs ul img {
	width: 25px;
	display: flex;
	align-items: center;
}

@media screen and (max-width: 700px) {
	.crumbs {
		padding: 20px 0;
	}

	.ranks {
		padding: 0 8px;
	}
}

/* 轮播 */
.lb-box {
	width: 100%;
	margin: 0 auto;
	position: relative;
	overflow: hidden;
}

.lb-content {
	width: 100%;
	height: 100%;
}

.lb-item {
	width: 100%;
	display: none;
	position: relative;
}

.lb-item>a {
	width: 100%;
	height: 100%;
	display: block;
}

.lb-item>a>img {
	width: 100%;
	height: 100%;
}

.lb-item.active {
	display: block;
	left: 0%;
}

.lb-item.active.left {
	left: -100%;
}

.lb-item.active.right {
	left: 100%;
}

.lb-item.next,
.lb-item.prev {
	display: block;
	position: absolute;
	top: 0px;
}

.lb-item.next {
	left: 100%;
}

.lb-item.prev {
	left: -100%;
}

.lb-item.next.left,
.lb-item.prev.right {
	left: 0%;
}

.lb-sign {
	position: absolute;
	left: 50%;
	bottom: 15px;
	transform: translateX(-50%);
	padding: 5px 3px;
	border-radius: 6px;
	list-style: none;
	user-select: none;
	background-color: rgba(0, 0, 0, 0.3);
	display: flex;
	justify-content: center;
	margin: 0;
}

.lb-sign li {
	width: 22px;
	height: 20px;
	font-size: 14px;
	font-weight: 500;
	line-height: 20px;
	text-align: center;
	float: left;
	color: #aaa;
	margin: auto 4px;
	border-radius: 3px;
	cursor: pointer;
}

.lb-sign li:hover {
	color: #fff;
}

.lb-sign li.active {
	color: #000;
	background-color: #EBEBEB;
}

.lb-ctrl {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	font-weight: 900;
	user-select: none;
	background-color: rgba(0, 0, 0, 0.3);
	color: #fff;
	border-radius: 50%;
	width: 45px;
	height: 45px;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	transition: all 0.1s linear;
}

.lb-ctrl.left {
	left: -50px;
}

.lb-ctrl.right {
	right: -50px;
}

.lb-box:hover .lb-ctrl.left {
	left: 10px;
}

.lb-box:hover .lb-ctrl.right {
	right: 10px;
}

.lb-ctrl:hover {
	background-color: #000;
}

/* 在线咨询-电话 */
.consulting_service {
	display: flex;
	margin-top: 30px;
	justify-content: center;
}

.consulting_service>a {
	width: 45%;
	margin: 0 20px;
	background-color: #3974af;
	padding: 10px 0;
}

.consulting_service a {
	display: flex;
	justify-content: center;
	align-items: center;
	color: #ffffff;
	border-radius: 10px;
}

.consulting_service a img {
	width: 23px;
}

.consulting_service a h4 {
	margin-left: 5px;
	font-size: 15px;
}

@media (max-width: 1300px) {
	.consulting_service {
		margin-top: 20px;
	}
}

@media (max-width: 700px) {
	.consulting_service>a {
		width: 50%;
		margin: 0 5px;
	}
}

/* 内容左右 */
.content_module {
	display: flex;
	justify-content: space-between;
	padding: 20px;
	box-shadow: 0 0 10px rgba(148, 148, 148, 0.2);
	border-radius: 10px;
	margin: 30px auto;
	letter-spacing: 2px;
}

.content_module .content_module_left {
	width: 49%;
	display: flex;
	align-items: center;
}

.content_module .content_module_right {
	width: 50%;
	padding: 10px 20px;
}

.content_module .content_module_left img {
	width: 100%;
	border-radius: 10px;
	display: flex;
}

.content_module .content_module_right h3 {
	font-size: 1.25rem;
	letter-spacing: 2px;
	color: #313d49;
         
}

.content_module .content_module_right h5 {
	color: #555555;
	margin: 5px 0;
	font-size: 15px;
}

.content_module .content_module_right p {
	font-size: 0.875rem;
	color: #666;
	margin-top: 10px;
	line-height: 24px;
}

@media (max-width: 1400px) {
	.content_module .content_module_right p {
		line-height: 22px;
	}
}

@media (max-width: 1300px) {
	.content_module .content_module_right p {
		line-height: 20px;
	}
}

@media (max-width: 1100px) {
	.content_module .content_module_left {
		width: 31%;
	}

	.lb-sign {
		display: none;
	}

	.lb-ctrl {
		display: none;
	}

	.content_module .content_module_right {
		width: 68%;
	}

	.content_module .content_module_right p {
		line-height: 20px;
		margin-top: 5px;
	}

	.content_module .content_module_right h3 {
		font-size: 18px;
		padding: 0;
	}
}

@media (max-width: 800px) {
	.content_module {
		display: block;
		margin: 0px auto 20px;
                                 padding: 10px;
	}

	.content_module .content_module_left {
		width: 100%;
		margin: 0 auto;
	}

	.content_module .content_module_right {
		width: 100%;
		margin: 0 auto;
		padding: 0;
	}

	.content_module .content_module_right h3 {
		margin-top: 15px;
	}

	.content_module .content_module_right p {
		line-height: 24px;
		margin-top: 10px;
	}
}