:root {
	--primary-color: #2c3e50;
	--secondary-color: #3498db;
	--accent-color: #e74c3c;
	--light-color: #ecf0f1;
	--dark-color: #34495e;
	--text-color: #333;
	--shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
	background-color: #f8f9fa;
	color: var(--text-color);
	line-height: 1.6;
}

.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
}

header {
	background: linear-gradient(135deg, var(--primary-color), var(--dark-color));
	color: white;
	padding: 2rem 0;
	text-align: center;
	box-shadow: var(--shadow);
}

.logo {
	font-size: 2.5rem;
	font-weight: bold;
	margin-bottom: 0.5rem;
}

.subtitle {
	font-size: 1.2rem;
	opacity: 0.9;
	margin-bottom: 1rem;
}

.contact-info {
	background-color: rgba(255, 255, 255, 0.1);
	display: inline-block;
	padding: 1rem 2rem;
	border-radius: 5px;
	margin-top: 1rem;
}

.contact-info div {
	margin: 0.5rem 0;
}

section {
	padding: 3rem 0;
}

h2 {
	color: var(--primary-color);
	text-align: center;
	margin-bottom: 2rem;
	position: relative;
	padding-bottom: 0.5rem;
}

h2:after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 50%;
	transform: translateX(-50%);
	width: 80px;
	height: 3px;
	background-color: var(--secondary-color);
}

h3 {
	color: var(--dark-color);
	margin: 1.5rem 0 1rem;
}

.card-container {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	gap: 2rem;
	margin-top: 2rem;
}

.card {
	background-color: white;
	border-radius: 8px;
	padding: 1.5rem;
	box-shadow: var(--shadow);
	transition: transform 0.3s ease;
}

.card:hover {
	transform: translateY(-5px);
}

.card i {
	font-size: 2.5rem;
	color: var(--secondary-color);
	margin-bottom: 1rem;
}

.card h3 {
	color: var(--primary-color);
	margin-bottom: 1rem;
}

ul {
	list-style-type: none;
	padding-left: 1rem;
}

ul li {
	margin-bottom: 0.8rem;
	position: relative;
	padding-left: 1.5rem;
}

ul li:before {
	content: '•';
	color: var(--secondary-color);
	font-weight: bold;
	position: absolute;
	left: 0;
}

.features-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
	gap: 1.5rem;
}

.feature-item {
	background-color: white;
	padding: 1.5rem;
	margin-bottom: 5px;
	border-radius: 8px;
	box-shadow: var(--shadow);
}

.feature-item h4 {
	color: var(--secondary-color);
	margin-bottom: 0.5rem;
}

.image-placeholder {
	background-color: #ddd;
	height: 200px;
	border-radius: 8px;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 1.5rem 0;
	color: #777;
}

.integration {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-around;
	margin-top: 2rem;
}

.integration-box {
	background-color: white;
	padding: 1.5rem;
	border-radius: 8px;
	box-shadow: var(--shadow);
	width: 45%;
	min-width: 300px;
	margin-bottom: 2rem;
}

.integration-box h3 {
	color: var(--primary-color);
	text-align: center;
	margin-bottom: 1.5rem;
}

.indent-text {
	text-indent: 2em; /* 使用em单位，大约是字符的宽度 */
}

footer {
	background-color: var(--primary-color);
	color: white;
	text-align: center;
	padding: 2rem 0;
	margin-top: 2rem;
}

@media (max-width: 768px) {
	.integration-box {
		width: 100%;
	}
	
	.card-container {
		grid-template-columns: 1fr;
	}
}