/* 初始化所有样式 */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: Helvetica, "PingFang SC", "Microsoft Yahei", sans-serif;
	font-size: 14px;
}

img {
	width: 100%;
}
body::-webkit-scrollbar {
            display: none; /* 隐藏滚动条 */
        }
:root {
	--primary-color: #ff434f;
	--secondary-color: #e3e3e3;
	--text-color-lightest: #e7e9ec;
	--text-color-darker: #2e2e2e;
	--text-color-dark: #494949;
	--text-color-gray: #8b8b8b;
	--text-color-dark-gray: #727272;
	--text-color-light-gray: #c6c6c6;
	--backdrop-color: rgba(80, 80, 80, 0.4);
}

/* 栅格布局 */
header {
	width: 100vw;
	height: 80px;
	display: grid;
	padding: 0 40px;

	grid-template-columns: 1fr 2fr;
	align-content: center;
	position: relative;
	z-index: 200;
}

.logo {
	font-size: 24px;
	font-weight: 600;
	color: var(--text-color-lightest);
}

header nav {
	justify-self: end;
	margin-right: 100px;
}

header nav i {
	color: var(--text-color-lightest);
}

header nav a {
	color: var(--text-color-lightest);
	text-decoration: none;
	margin: 0 24px;
}

header.burger {
	display: none;
}

header.sticky {
	position: fixed;
	background-color: white;
	box-shadow: 0 0 18px rgba(0, 0, 0, 0.2);
	animation: dropDown 0.5s ease-in-out forwards;
}

header.sticky .logo,
header.sticky nav a,
header.sticky nav i {
	color: var(--text-color-darker);
}

.title-img {
	width: 30px;
}


@keyframes dropDown {
	from {
		transform: translateY(-100px);
	}

	to {
		transform: translateY(0);
	}
}

/* 轮播图 */
.glide {
	position: relative;
	top: -80px;
	z-index: 50;
}

.glide__slide img,
.glide__slide video {
	width: 100vw;
	height: 100vh;
	/* 自动等比例缩放 */
	object-fit: cover;
}

.slide-caption {
	position: absolute;
	z-index: 70;
	color: var(--text-color-lightest);
	text-align: center;
	max-width: 60vw;
}

.glide__slide {
	display: flex;
	align-items: center;
	justify-content: center;
}

.slide-caption h1 {
	font-size: 54px;
	font-weight: 600;
}

.slide-caption h3 {
	font-size: 24px;
	margin: 48px 0px;
}

.slide-caption.left {
	max-width: 80vw;
	text-align: left;
}

.slide-caption>* {
	opacity: 0;
}

.backdrop {
	background: var(--backdrop-color);
	z-index: 60;
	position: absolute;
	width: 100%;
	height: 100%;
	left: 0;
	top: 0;
	opacity: 0.5;
}

.explore-btn {
	padding: 14px 32px;
	background-color: var(--primary-color);
	border: 0;
	border-radius: 4px;
	color: var(--text-color-lightest);
	font-size: 18px;
	cursor: pointer;
	outline: none;
}

/* 内容区域 */
/* 通用样式 */
.content-wrapper {
	/* 一维排版 */
	display: flex;
	align-items: center;
	justify-content: center;
	flex-direction: column;
}

section {
	/* 二维 */
	display: grid;
	/* 每个列的对齐方式 */
	justify-items: center;
	max-width: 1280px;
	padding: 0 80px;
}

.section-bg {
	position: relative;
}

.section-bg::before {
	content: "";
	display: block;
	position: absolute;
	background-color: #f9fbfb;
	width: 100vw;
	height: 100%;
	z-index: -1;
}

.title1 {
	font-size: 34px;
	color: var(--text-color-darker);
}

.title1::after {
	content: "";
	display: block;
	width: 80%;
	height: 4px;
	background-color: var(--primary-color);
	margin-top: 14px;
	transform: translateX(10%);
}

.intro {
	margin: 28px 0 60px 0;
	/* text-indent: 2em; */
	font-size: 18px;
	color: var(--text-color-dark-gray);
}

/* 关于我们 */
.about-us {
	padding-bottom: 32px;
}

.features {
	display: grid;
	/* 重复几次，重复的值  1fr：容器宽度的1/3*/
	grid-template-columns: repeat(3, 1fr);
	grid-template-rows: 126px 126px;
	column-gap: 5vw;
}

.feature {
	display: grid;
	grid-template-areas:
		"icon title"
		"icon content";
	grid-template-columns: 60px 1fr;
	grid-template-rows: 1fr 3fr;
}

.feature i.fas {
	grid-area: icon;
	font-size: 34px;
	color: var(--primary-color);
}

.feature-title {
	grid-area: title;
	font-size: 18px;
	color: var(--text-color-darker);
}

.feature-content {
	grid-area: content;
	color: var(--text-color-gray);
	margin-top: 8px;
}

/* 成功案例 */
.showcases {
	max-width: unset;
	padding: 0px;
	padding-top: 72px;
}

.filter-btns {
	margin-top: 54px;
	margin-bottom: 38px;
}

.filter-btn {
	margin: 0 7px;
	background-color: var(--secondary-color);
	border: 0;
	color: var(--text-color-dark-gray);
	padding: 8px 18px;
	border-radius: 4px;
	cursor: pointer;
	transition: 0.4s;
}

.filter-btn:focus,
.filter-btn:active {
	outline: none;
}

.filter-btn.active,
.filter-btn:hover {
	background-color: var(--primary-color);
	color: white;
}

.showcases .cases {
	width: 100vw;
}

.showcases .case-item {
	width: 25vw;
	height: 20vw;
	overflow: hidden;
}

.case-item img {
	height: 100%;
	object-fit: cover;
}

/* 服务流程 */
.service {
	padding-top: 131px;
}

.services {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	grid-template-rows: 1fr 1fr;
	column-gap: 38px;
	row-gap: 34px;
}

.service-item {
	display: grid;
	grid-template-areas:
		"icon title"
		"icon content";
	grid-template-columns: 70px 1fr;
	grid-template-rows: 1fr 3fr;
	padding: 24px;
	box-shadow: 0px 0px 18px rgba(0, 0, 0, 0.06);
}

.service-item i.fas {
	grid-area: icon;
	font-size: 42px;
	color: var(--primary-color);
	padding-top: 6px;
}

.service-item .service-title {
	grid-area: title;
	color: var(--text-color-darker);
	font-size: 24px;
	text-decoration: none
}

.service-title:hover {
	color: #ff434f;
}

.service-item .service-content {
	grid-area: content;
	color: var(--text-color-gray);
	line-height: 30px;
	font-size: 16px;
	margin-top: 8px;
}

/* 团队介绍 */
.team-intro {
	margin-top: 48px;
	padding-top: 62px;
	padding-bottom: 52px;
}

.team-members {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	column-gap: 24px;
	margin-top: 86px;
}

.team-member {
	background-color: white;
	box-shadow: 0px 0px 24px rgba(0, 0, 0, 0.2);
	text-align: center;
	padding-bottom: 28px;
	transition: 0.4s;
	display: grid;
	justify-items: center;
}

.profile-image {
	overflow: hidden;
}

.profile-image img {
	width: 100%;
	height: 264px;
	object-fit: cover;
	object-position: top center;
}

.team-member .name {
	margin-top: 18px;
	font-size: 18px;
	font-weight: 500;
	color: var(--text-color-dark);
}

.team-member .position {
	color: var(--text-color-dark-gray);
	margin-top: 20px;
	margin-bottom: 18px;
}

.social-links {
	width: 100%;
	max-width: 200px;
	display: flex;
	justify-content: space-between;
	padding: 0 42px;
}

.social-links li {
	list-style: none;
}

.social-links li a {
	color: var(--text-color-dark);
	text-decoration: none;
}

.team-member:hover {
	transform: translateY(-20px) scale(1.05);
	box-shadow: 0px 0px 36px rgba(0, 0, 0, 0.1);
}

/* 数据部分 */
.data-section {
	max-width: unset;
	width: 100vw;
	height: 255px;
	background-image: url(./images/adult-business-computer-contemporary-380769.jpg);
	background-size: cover;
	background-position: center;
	display: grid;
	grid-template-columns: repeat(4, minmax(auto, 220px));
	justify-content: center;
	align-items: center;
	/* 子元素绝对定位时需要有相对的父级元素 */
	position: relative;
	z-index: 20;
}

.data-section::before {
	content: "";
	display: block;
	position: absolute;
	background-color: var(--backdrop-color);
	width: 100%;
	height: 100%;
	z-index: 1;
}

.data-piece {
	width: 250px;
	display: grid;
	grid-template-rows: repeat(3, 1fr);
	justify-items: center;
	color: white;
	position: relative;
	z-index: 40;
}

.data-piece i.fas {
	font-size: 44px;
}

.data-piece .num {
	margin-top: 7px;
	font-size: 41px;
	font-weight: 600;
}

.data-piece .data-desc {
	font-size: 18px;
	font-weight: 500;
}

/* 公司动态 */
.company-activities {
	margin-top: 80px;
}

.activities {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	column-gap: 24px;
}

.activity {
	box-shadow: 0px 0px 24px rgba(0, 0, 0, 0.1);
	padding: 24px;
	transition: 0.4s;
}

.act-image-wrapper {
	height: 255px;
	overflow: hidden;
	margin: -24px;
	margin-bottom: 0;
}

.act-image-wrapper img {
	min-height: 300px;
	object-fit: cover;
}

.activity .meta {
	margin-top: 20px;
	margin-bottom: 12px;
	color: var(--text-color-light-gray);
	font-size: 12px;
	display: flex;
}

.activity .meta>p:last-child {
	margin-left: 36px;
}

.act-title {
	color: var(--text-color-dark);
	font-size: 18px;
	margin-bottom: 16px;
}

.activity article {
	color: var(--text-color-gray);
	letter-spacing: 0.54px;
	line-height: 24px;
}

.read-more-btn {
	border: 0;
	color: white;
	background-color: var(--primary-color);
	padding: 6px 14px;
	margin-top: 24px;
	border-radius: 4px;
}

.activity:hover {
	transform: translateY(-20px) scale(1.05);
	box-shadow: 0px 0px 36px rgba(0, 0, 0, 0.1);
}

/* 底部信息 */
footer {
	margin-top: 124px;
	background-color: #181818;
	display: grid;
	justify-items: center;
	padding-top: 72px;
	padding-bottom: 24px;
}

.footer-menus {
	width: 100%;
	max-width: 1280px;
	display: grid;
	grid-template-columns: 2fr repeat(4, 1fr);
	padding: 0 80px;
	position: relative;
}

.menu-title {
	font-size: 16px;
	color: white;
	font-weight: 500;
	margin-bottom: 20px;
}

.contact-us {
	justify-self: start;
	color: var(--text-color-lightest);
}

.contact-us p:not(:first-child) {
	padding-bottom: 16px;
}

.menu-items li {
	list-style: none;
	padding-bottom: 8px;
}

.menu-items li a {
	text-decoration: none;
	font-weight: 300;
	color: var(--text-color-lightest);
}

.icp-info {
	margin-top: 24px;
	margin-bottom: 16px;
}

.icp-info,
.rights {
	grid-column: 1 / -1;
	justify-self: center;
	color: white;
}

.scroll-to-top {
	display: none;
	position: relative;
	z-index: 300;
}

.scroll-to-top a {
	width: 32px;
	height: 32px;
	border-radius: 4px;
	display: flex;
	align-items: center;
	justify-content: center;
	background-color: var(--primary-color);
	color: white;
	text-decoration: none;
	position: fixed;
	bottom: 60px;
	right: 30px;
}

@media (max-width: 1100px) {
	header nav {
		display: none;
	}

	header .burger {
		display: block;
		position: relative;
		width: 20px;
		height: 6px;
		justify-self: end;
		cursor: pointer;
	}

	.burger-line1,
	.burger-line2,
	.burger-line3 {
		width: 20px;
		height: 2px;
		background-color: var(--text-color-lightest);
	}

	.burger-line1 {
		position: absolute;
		top: -6px;
	}

	.burger-line3 {
		position: absolute;
		top: 6px;
	}

	header.open nav {
		display: grid;
		position: absolute;
		left: 0;
		top: 0;
		width: 100vw;
		height: 100vh;
		background-color: white;
		grid-auto-rows: max-content;
		justify-items: end;

		padding: 0 40px;
		opacity: 0;
		animation: slideDown 0.6s ease-out forwards;
	}

	header.open nav>* {
		font-size: 18px;
		margin: 4px 0;
		opacity: 0;
		color: var(--text-color-darker);
		animation: showMenu 0.5s linear forwards 0.4s;
	}

	header.opem nav>i.fas {
		margin-top: 10px;
	}

	header.open .burger-line1,
	header.open .burger-line2,
	header.open .burger-line3,
	header.sticky .burger-line1,
	header.sticky .burger-line2,
	header.sticky .burger-line3 {
		background-color: var(--text-color-darker);
		transform: 0.4s ease;
	}

	header.open .burger-line1 {
		transform: rotate(45deg) translate(3px, 5px);
	}

	header.open .burger-line2 {
		transform: translateX(5px);
		opacity: 0;
	}

	header.open .burger-line3 {
		transform: rotate(-45deg) translate(3px, -5px);
	}

	header.open .logo {
		z-index: 40;
		color: var(--text-color-darker);
	}

	@keyframes slideDown {
		from {
			height: 0;
			opacity: 0;
		}

		to {
			height: 100vh;
			padding-top: 80px;
			opacity: 1;
		}
	}

	@keyframes showMenu {
		from {
			opacity: 0;
			transform: translateY(-1vh);
		}

		to {
			opacity: 1;
			transform: translateY(0);
		}
	}

	.service-item .service-title {
		font-size: 20px;
	}

	.service-item .service-content {
		font-size: 14px;
		line-height: 24px;
	}

	.team-members {
		grid-template-columns: repeat(2, 1fr);
		row-gap: 36px;
		column-gap: 6vw;
	}

	.activities {
		grid-template-columns: repeat(2, 1fr);
		row-gap: 36px;
	}

}

@media(max-width: 992px) {
	.slide-caption h1 {
		font-size: 48px;
	}

	.slide-caption h3 {
		font-size: 18px;
	}

	.features,
	.services {
		grid-template-columns: repeat(2, 1fr);
		grid-template-rows: unset;
	}

	.data-section {
		grid-template-columns: repeat(2, minmax(200px, auto));
		padding: 24px 0;
		height: auto;
		row-gap: 24px;
		background-size: 200%;
	}

	.showcases .case-item {
		width: calc(100vw/3);
	}
}

@media(max-width: 768px) {

	section,
	.footer-menus {
		padding: 0 40px;
	}

	.footer-menus {
		grid-template-columns: 2fr repeat(2, 1fr);
		row-gap: 24px;

	}

	.contact-us {
		grid-row: 1 / 3;
	}

	.footer-menus {
		text-align: right;
	}

	.activities {
		grid-template-columns: 1fr;

		row-gap: 36px;
	}

	.data-section {
		grid-template-columns: 1fr;
		background-size: 300%;
	}

	.team-members {
		grid-template-columns: minmax(200, 400);
	}

	.features,
	.services {
		grid-template-columns: 1fr;
	}

	.showcases .case-item {
		width: calc(100vw /2);
		height: 30vw;
	}
}

@media(max-width: 576px) {
	.slide-caption h1 {
		font-size: 28px;
	}

	.slide-caption h3 {
		font-size: 14px;
	}

	.explore-btn {
		font-size: 14px;
		padding: 8px 18px;
	}

	.showcases .case-item {
		width: 100vw;
		height: 60vw;
	}

	.footer-menus {
		grid-template-columns: 1fr;
	}

	.footer-menus {
		justify-self: start;
		text-align: left;
	}
}

.footer_img {
	display: flex;
	gap: 10px;
}

.footer_img img {
	width: 28px;
	height: 28px;
	border: 1px #c1c1c1 solid;
	padding: 3px;
	border-radius: 5px;
	transition: filter 0.3s ease;
	/* 添加过渡效果 */
}

.footer_img img:hover {
	border: 1px #000000 solid;
	padding: 3px;
	border-radius: 5px;
	background-color: #000000;
	filter: brightness(50%);
	/* 降低亮度至50% */
}

.tell {
	width: 100%;
	text-align: center;
}




/* 下拉框基础样式 */
.dropdown {
	position: relative;
	display: inline-block;
}


/* 下拉内容默认隐藏 */
.dropdown-content {
	display: none;
	position: absolute;
	background-color: #ffffff;
	min-width: 200px;
	box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
	z-index: 1;
	text-align: center;
	margin-left: -38px;
	border-radius: 10px;
	padding: 0;
}

/* 下拉内容中的链接样式 */
.a1 {
	color: #000000;
	padding: 12px 16px;
	display: block;
	margin: 5px;
	padding: 15px;
	font-size: 16px;
}
.a1:hover{
	color: #dfe0e3;
}

/* 链接悬停效果 */
.dropdown-content a:hover {
	background-color: #ff434f;
	border-radius: 10px;
}

/* 当鼠标悬停在.dropdown上时显示.dropdown-content */
.dropdown:hover .dropdown-content {
	display: block;
}


#header #title-right {
	position: relative;
	/* 确保下拉框能够相对于其父元素定位 */
}

#tbtn {
	background-color: inherit;
	/* 继承父元素的背景颜色 */
	color: gainsboro;
	/* 与其他导航链接颜色一致 */
	border: none;
	/* 去除按钮边框 */
	cursor: pointer;
	/* 鼠标悬停时显示为手形 */
	padding: 5px 10px;
	/* 可选：为按钮添加一些内边距 */
}

#tbtn:hover {
	color: skyblue;
	/* 鼠标悬停时按钮颜色变化 */
}