/* 基础样式重置 */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
	font-size: 16px;
	line-height: 1.6;
	color: #333;
	background-color: #fff;
}

.container {
	width: 100%;
	margin: 0 auto;
	padding: 0 20px;
}

a {
	text-decoration: none;
	color: inherit;
}

img {
	max-width: 100%;
	height: auto;
}

/* 导航栏 */
.header {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	background: transparent;
	z-index: 1000;
}

.header .container {
	display: flex;
	justify-content: space-between;
	align-items: center;
	height: 80px;
	max-width: 100%;
}

.logo {
	display: flex;
	margin-left: 111px;
	align-items: center;
	justify-content: center;
	gap: 12px;
}

.logo img {
	height: 54px;
	width: 65px;
	border-radius: 5px;
}

.logo span {
	font-weight: 600;
	font-size: 48px;
	color: #EB3D00;
	text-stroke: 1px #FFFFFF;
	text-align: left;
	font-style: normal;
	text-transform: none;
	-webkit-text-stroke: 1px #FFFFFF;
}

.nav {
	display: flex;
	gap: 50px;
	margin-right: 111px;
}

.nav a {
	font-size: 16px;
	color: #666;
	padding: 8px 4px;
	position: relative;
	transition: all 0.3s ease;
	font-weight: 600;
}

.nav a:hover,
.nav a.active {
	color: #e74c3c;
}

.nav a.active::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	height: 2px;
	background: #e74c3c;
}

/* 滚动后固定导航栏 */
.header-fixed {
	position: fixed;
	background: rgba(255, 255, 255, 0.98);
	box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
	animation: slideDown 0.3s ease;
}

@keyframes slideDown {
	from {
		transform: translateY(-100%);
	}

	to {
		transform: translateY(0);
	}
}

/* Hero区域 */
.hero {
	position: relative;
	width: 100%;
	height: 100vh;
	min-height: 600px;
	max-height: 800px;
	overflow: hidden;
}

.hero-bg {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: 0;
}

.hero-bg .bg-image {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center;
}

.hero-content-wrapper {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	display: flex;
	align-items: center;
	justify-content: space-between;
	z-index: 1;
	margin: 0 264px 0 188px;
	padding: 0 5%;
}

.hero-text {
	flex: 0 0 auto;
	padding-top: 60px;
}

.hero-text h1 {
	font-size: 100px;
	font-weight: bold;
	color: #EB0000;
	margin-bottom: 8px;
	line-height: 1.3;
	-webkit-text-stroke: 3px #FFFFFF;

	text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.5);
}

.hero-text h2 {
	font-size: 100px;
	font-weight: bold;
	color: #EB0000;
	-webkit-text-stroke: 3px #FFFFFF;
	line-height: 1.3;
	text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.5);
}

.hero-family {
	flex: 0 0 auto;
	display: flex;
	align-items: center;
	padding-top: 85px;
}

.hero-family .family-image {
	max-width: 860px;
	height: auto;
	filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.1));
}

/* 产品特点区域 */
.features {
	padding: 51px 0;
	background: url('../images/bg2.png') no-repeat center center;
	background-size: cover;
	position: relative;
	height: 1211px;
}

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

.section-title h2 {
	font-size: 64px;
	font-weight: bold;
	color: #333;
	margin-bottom: 12px;
}

.section-title p {
	font-size: 32px;
	color: #B4B4B4;
	margin: 0 auto;
}

.features-content {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	gap: 100px;
	margin: 0 auto;
}

.features-phone {
	/* flex: 0 0 400px; */
}

.features-phone img {
	width: 876px;
	height: 1028px;
	margin-left: 382px;
	margin-top: -35px;
	/* filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15)); */
}

.features-list {
	flex: 1;
	display: flex;
	flex-direction: column;
	gap: 107px;
	padding-top: 111px;
}

.feature-item {
	display: flex;
	align-items: flex-start;
	gap: 20px;
	padding: 0;
	transition: all 0.3s ease;
}

.feature-item:hover {
	transform: translateX(5px);
}

.feature-icon {
	flex: 0 0 40px;
	width: 40px;
	height: 40px;
	background: #e74c3c;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	margin-top: 5px;
}

.feature-icon .icon-text {
	font-size: 18px;
	color: white;
}

.feature-info h3 {
	font-size: 40px;
	font-weight: bold;
	color: #1A1A1A;
	margin-bottom: 5px;
}

.feature-info p {
	font-size: 32px;
	color: #B4B4B4;
	line-height: 1.6;
}

/* 成功案例区域 */
.cases {
	width: 100%;
	height: 1484px;
	padding: 43px 0;
	background: url('../images/bg3.png') no-repeat center center;
	background-size: cover;
	position: relative;
}

.cases .section-title h2 {
	color: #1A1A1A;
}

.cases-grid {
	display: grid;
	margin-top: 102px;
	grid-template-columns: repeat(3, 0fr);
	grid-row-gap: 84px;
	grid-column-gap: 102px;
	justify-content: center;
}

.case-item {
	background: #fff;
	border-radius: 25px;
	width: 467px;
	height: 476px;
	overflow: hidden;
	box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
	transition: all 0.3s ease;
}

.case-item:hover {
	transform: translateY(-10px);
	box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.case-image {
	width: 100%;
	height: 286px;
	overflow: hidden;
}

.case-image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.3s ease;
}

.case-item:hover .case-image img {
	transform: scale(1.05);
}

.case-info {
	padding: 20px;
}

.case-desc {
	font-size: 28px;
	color: #545454;
	margin-bottom: 8px;
}

.case-name {
	font-size: 28px;
	color: #545454;
	margin-bottom: 12px;
}

.case-result {
	font-size: 32px;
	color: #585858;
}

.case-result .highlight {
	color: #EB3D00;
	font-weight: bold;
}

/* 页脚 */
.footer {
	padding: 30px 0;
	background: #171E2B;
	border-top: 1px solid #eee;
}

.footer-content {
	text-align: center;
}

.footer-content p {
	font-size: 24px;
	color: #FFFFFF;
	margin-bottom: 8px;
}

.footer-content .company {
	color: #FFFFFF;
}

/* 响应式设计 */
@media (max-width: 992px) {
	.hero {
		height: auto;
		min-height: 500px;
		max-height: none;
	}

	.hero-content-wrapper {
		flex-direction: column;
		text-align: center;
		padding: 0 5%;
	}

	.hero-text {
		padding-top: 100px;
		margin-bottom: 30px;
	}

	.hero-text h1,
	.hero-text h2 {
		font-size: 38px;
	}

	.hero-family {
		padding-top: 0;
	}

	.hero-family .family-image {
		max-width: 400px;
	}

	.features-content {
		flex-direction: column;
		gap: 50px;
		text-align: center;
	}

	.features-phone {
		flex: none;
		order: -1;
		align-self: center;
	}

	.features-phone img {
		max-width: 300px;
	}

	.features-list {
		gap: 30px;
	}

	.feature-item {
		justify-content: center;
	}

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

@media () {
	.header .container {
		height: 60px;
	}

	.logo span {
		font-size: 20px;
	}

	.nav {
		gap: 20px;
	}

	.nav a {
		font-size: 14px;
	}

	.hero-content-wrapper {
		padding: 0 20px;
	}

	.hero-text {
		padding-top: 80px;
	}

	.hero-text h1,
	.hero-text h2 {
		font-size: 32px;
	}

	.hero-family .family-image {
		max-width: 300px;
	}

	.section-title h2 {
		font-size: 28px;
	}

	.features,
	.cases {
		padding: 60px 0;
	}

	.cases-grid {
		grid-template-columns: 1fr;
	}

	.feature-item {
		padding: 15px;
	}

	.feature-info h3 {
		font-size: 18px;
	}
}

@media (max-width: 480px) {
	.nav {
		gap: 15px;
	}

	.nav a {
		font-size: 12px;
	}

	.hero-text h1,
	.hero-text h2 {
		font-size: 26px;
	}

	.hero-family .family-image {
		max-width: 250px;
	}

	.section-title h2 {
		font-size: 22px;
	}

	.footer-content p {
		font-size: 12px;
	}
}