* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
body {
	font-family: "Microsoft Yahei", sans-serif;
	color: #333;
	overflow-x: hidden;
}

/* 顶部Banner样式 - 全屏无边距 */
.banner {
	position: relative;
	height: 700px;
	background: url('/static/img/index_top_backgroup_1.jpg') no-repeat center center; /* 星空背景图 */
	background-size: cover;
	display: flex;
	align-items: center;
	justify-content: center;
	color: white;
	text-align: center;
	width: 100vw;
	margin: 0 !important;
	padding: 0 !important;
}
.banner::before {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.7); /* 全局透明黑色背景 */
	z-index: 1;
}
.banner-content {
	position: relative;
	z-index: 2;
	padding: 20px;
	max-width: 1200px;
	width: 100%;
}
.banner h1 {
	font-size: 3.5rem;
	font-weight: 700;
	margin-bottom: 2rem;
}
.banner h2 {
	font-size: 2rem;
	margin-bottom: 1.5rem;
	color: #fff;
}
.banner .contact-info {
	font-size: 1.2rem;
	margin-top: 2rem;
	padding: 15px 30px;
	background: rgba(255, 255, 255, 0.1);
	border-radius: 50px;
	display: inline-block;
}

/* 通用标题样式 */
.section-title {
	text-align: center;
	margin: 80px 0 50px;
	position: relative;
}
.section-title h2 {
	font-size: 2.8rem;
	font-weight: 700;
	color: #2c3e50;
	position: relative;
	display: inline-block;
	padding-bottom: 15px;
}
.section-title h2::after {
	content: "";
	position: absolute;
	bottom: 0;
	left: 50%;
	transform: translateX(-50%);
	width: 80px;
	height: 4px;
	background: #007bff;
}
.section-title p {
	color: #7f8c8d;
	margin-top: 20px;
	font-size: 1.1rem;
}

/* 卡片样式 */
.card {
	border: none;
	box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
	transition: all 0.3s ease;
	margin-bottom: 30px;
	border-radius: 10px;
	overflow: hidden;
}
.card:hover {
	transform: translateY(-8px);
	box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}
.card img {
	height: 220px;
	object-fit: cover;
	transition: transform 0.5s ease;
}
.card:hover img {
	transform: scale(1.05);
}
.card-body {
	padding: 20px;
}
.card-title {
	font-weight: 600;
	color: #2c3e50;
	margin-bottom: 10px;
}
.card-text {
	color: #666;
	font-size: 0.95rem;
}

/* 数据展示板块 */
.data-show {
	background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
	padding: 80px 0;
	margin: 50px 0;
	border-radius: 15px;
}
.data-item {
	text-align: center;
	padding: 20px 15px;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
}
.data-item i {
	font-size: 3rem;
	color: #007bff;
	margin-bottom: 20px;
	background: white;
	width: 80px;
	height: 80px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
	flex-shrink: 0;
	line-height: 80px;
}
.data-item h3 {
	font-size: 2.5rem;
	font-weight: 700;
	color: #2c3e50;
	margin-bottom: 10px;
	text-align: center;
}
.data-item p {
	color: #666;
	font-size: 1.1rem;
	text-align: center;
	margin: 0;
}

/* 案例板块 */
.case-card {
	height: 100%;
}
.case-card img {
	height: 180px;
}

/* 右侧浮动联系窗口 */
.contact-float {
	position: fixed;
	top: 50%;
	right: 0;
	transform: translateY(-50%);
	z-index: 9999;
	background: #fff;
	border-radius: 30px 0 0 30px;
	box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
	padding: 15px 10px;
	width: 75px;
	text-align: center;
	border: 1px solid #eee;
	pointer-events: auto;
}
.qrcode-container {
	position: relative;
	margin-bottom: 10px;
}
.qrcode-small {
	width: 55px;
	height: 55px;
	border-radius: 5px;
	border: 1px solid #eee;
	margin: 0 auto;
	display: block;
}
.qrcode-large {
	position: absolute;
	right: 60px;
	top: 50%;
	transform: translateY(-50%);
	width: 150px;
	height: auto;
	border-radius: 8px;
	border: 2px solid #eee;
	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
	display: none;
	z-index: 10000;
}
.qrcode-container:hover .qrcode-large {
	display: block;
}
.contact-float .avatar {
	width: 50px;
	height: 50px;
	border-radius: 50%;
	background: #007bff;
	margin: 0 auto 10px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: white;
	font-weight: bold;
	font-size: 18px;
}
.contact-float .name {
	font-weight: 600;
	margin-bottom: 8px;
	font-size: 14px;
	color: #333;
}
.contact-float .phone {
	margin-top: 10px;
	font-size: 14px;
	color: #666;
}
.contact-float .phone i {
	font-size: 16px;
	color: #007bff;
	margin-bottom: 5px;
	display: block;
}
.contact-float .tel {
	font-size: 15px;
	line-height: 1.2;
	color: #333;
	font-weight: 600;
	white-space: pre-line;
}

/* 新增：企业简介板块 */
.company-intro {
	background-color: #f8f9fa;
	padding: 80px 0;
	margin: 50px 0;
	border-radius: 15px;
}
.intro-content {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 30px;
}
.intro-img {
	flex: 1;
	min-width: 300px;
}
.intro-img img {
	width: 100%;
	border-radius: 10px;
	box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}
.intro-text {
	flex: 1.5;
	min-width: 300px;
}
.intro-text h3 {
	font-size: 2rem;
	color: #2c3e50;
	margin-bottom: 20px;
	font-weight: 600;
}
.intro-text p {
	font-size: 1.05rem;
	color: #666;
	line-height: 1.8;
	margin-bottom: 15px;
}
.intro-features {
	display: flex;
	flex-wrap: wrap;
	margin-top: 30px;
	gap: 20px;
}
.intro-feature-item {
	display: flex;
	align-items: center;
	flex: 1;
	min-width: 180px;
}
.intro-feature-item i {
	color: #007bff;
	font-size: 1.5rem;
	margin-right: 10px;
}
.intro-feature-item span {
	color: #333;
	font-weight: 500;
}

/* 新增：技术优势板块 */
.tech-advantage {
	padding: 50px 0;
}
.advantage-item {
	background: white;
	padding: 30px;
	border-radius: 10px;
	box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
	margin-bottom: 30px;
	transition: all 0.3s ease;
	height: 100%;
}
.advantage-item:hover {
	transform: translateY(-5px);
	box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}
.advantage-item i {
	font-size: 2.5rem;
	color: #007bff;
	margin-bottom: 20px;
}
.advantage-item h3 {
	font-size: 1.5rem;
	color: #2c3e50;
	margin-bottom: 15px;
	font-weight: 600;
}
.advantage-item p {
	color: #666;
	line-height: 1.7;
}

/* 新增：服务保障板块 */
.service-guarantee {
	background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
	color: white;
	padding: 80px 0;
	margin: 50px 0;
	border-radius: 15px;
}
.service-guarantee .section-title h2 {
	color: white;
}
.service-guarantee .section-title h2::after {
	background: white;
}
.service-guarantee .section-title p {
	color: rgba(255, 255, 255, 0.8);
}
.guarantee-item {
	text-align: center;
	padding: 20px;
}
.guarantee-item i {
	font-size: 3rem;
	margin-bottom: 20px;
	background: rgba(255, 255, 255, 0.2);
	width: 80px;
	height: 80px;
	border-radius: 50%;
	display: inline-flex;
	align-items: center;
	justify-content: center;
}
.guarantee-item h3 {
	font-size: 1.5rem;
	margin-bottom: 15px;
	font-weight: 600;
}
.guarantee-item p {
	color: rgba(255, 255, 255, 0.8);
	line-height: 1.7;
}

/* 新增：客户评价板块 - 调整为一行四个，上图下文样式 */
.customer-reviews {
	padding: 80px 0;
	background-color: #f8f9fa;
	margin: 50px 0;
	border-radius: 15px;
}
.review-item {
	background: white;
	border-radius: 10px;
	box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
	margin-bottom: 30px;
	overflow: hidden;
	height: 100%;
}
.review-img {
	height: 180px;
	overflow: hidden;
}
.review-img img {
	width: 100%;
	object-fit: cover;
	transition: transform 0.3s ease;
}
.review-item:hover .review-img img {
	transform: scale(1.05);
}
.review-content {
	padding: 20px;
}
.review-text {
	color: #666;
	line-height: 1.8;
	margin-bottom: 15px;
	font-size: 0.95rem;
}
.review-user {
	display: flex;
	align-items: center;
}
.review-avatar {
	width: 40px;
	height: 40px;
	border-radius: 50%;
	background: #007bff;
	color: white;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1rem;
	font-weight: 600;
	margin-right: 10px;
}
.review-info h4 {
	font-size: 1rem;
	color: #2c3e50;
	margin-bottom: 3px;
}
.review-info p {
	font-size: 0.85rem;
	color: #999;
	margin: 0;
}

/* 新增：常见问题板块 */
.faq-section {
	padding: 80px 0;
	margin: 50px 0;
}
.accordion-item {
	border: 1px solid #eee;
	margin-bottom: 15px;
	border-radius: 8px !important;
	overflow: hidden;
}
.accordion-header {
	background-color: #f8f9fa;
}
.accordion-button {
	font-size: 1.1rem;
	font-weight: 500;
	color: #2c3e50;
	border: none;
	box-shadow: none !important;
	padding: 15px 20px;
}
.accordion-button:not(.collapsed) {
	background-color: #007bff;
	color: white;
}
.accordion-button:not(.collapsed)::after {
	filter: invert(1);
}
.accordion-body {
	padding: 20px;
	color: #666;
	line-height: 1.8;
}

/* 新增：联系咨询板块 */
.contact-section {
	padding: 80px 0;
	background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
	margin: 50px 0;
	border-radius: 15px;
}
.contact-form {
	background: white;
	padding: 40px;
	border-radius: 10px;
	box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}
.form-control {
	border-radius: 8px;
	border: 1px solid #eee;
	padding: 15px;
	margin-bottom: 20px;
}
.form-control:focus {
	border-color: #007bff;
	box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}
.submit-btn {
	background: #007bff;
	color: white;
	border: none;
	padding: 15px 30px;
	border-radius: 8px;
	font-size: 1.1rem;
	font-weight: 500;
	width: 100%;
	transition: all 0.3s ease;
}
.submit-btn:hover {
	background: #0056b3;
}
.contact-info-list {
	padding: 40px;
}
.contact-info-item {
	display: flex;
	align-items: flex-start;
	margin-bottom: 30px;
}
.contact-info-item i {
	font-size: 1.5rem;
	color: #007bff;
	margin-right: 15px;
	margin-top: 5px;
}
.contact-info-item h4 {
	font-size: 1.2rem;
	color: #2c3e50;
	margin-bottom: 10px;
}
.contact-info-item p {
	color: #666;
	margin: 0;
	line-height: 1.7;
}

/* 页脚样式 */
.footer {
	background-color: #2c3e50;
	color: white;
	padding: 80px 0 30px;
	margin-top: 80px;
	width: 100%;
	margin-left: 0;
	box-sizing: border-box;
}
.footer h4 {
	font-size: 1.5rem;
	margin-bottom: 25px;
	position: relative;
	padding-bottom: 10px;
}
.footer h4::after {
	content: "";
	position: absolute;
	bottom: 0;
	left: 0;
	width: 50px;
	height: 3px;
	background: #007bff;
}
.footer p {
	margin-bottom: 10px;
	color: #ddd;
}
.footer-contact {
	display: flex;
	align-items: center;
	margin-bottom: 15px;
}
.footer-contact i {
	font-size: 1.2rem;
	margin-right: 10px;
	color: #007bff;
}

/* 友链容器：限制宽度、居中、留出左右间距 */
.friend_h{
	color: #666;                   /* 灰色文字 */
	font-size: 14px;
}
.friend-links {
  list-style: none;
  padding: 0 20px;               /* 左右内边距，避免贴边 */
  margin: 24px auto;             /* 上下外边距 + 水平居中 */
  max-width: 1200px;             /* 宽屏下不撑满，例如限制在 1200px */
  display: flex;
  flex-wrap: wrap;
  gap: 20px;                     /* 控制每个链接之间的间距 */
}

.friend-links li {
  margin: 0;
}

.friend-links a {
  text-decoration: none;         /* 去掉下划线 */
  color: #666;                   /* 灰色文字 */
  font-size: 14px;
  padding: 6px 10px;
  border-radius: 4px;
  transition: color 0.2s, background-color 0.2s;
}

.friend-links a:hover {
  color: #333;                   /* 悬停时稍深一点的灰色 */
  background-color: #f5f5f5;     /* 轻微背景色提示 */
}
/* 响应式调整 */
@media (max-width: 992px) {
	/* 客户评价在中等屏幕下改为一行两个 */
	.customer-reviews .col-lg-3 {
		flex: 0 0 50%;
		max-width: 50%;
	}
}

@media (max-width: 768px) {
	.banner {
		height: 500px;
	}
	.banner h1 {
		font-size: 2.5rem;
	}
	.banner h2 {
		font-size: 1.5rem;
	}
	.section-title h2 {
		font-size: 2rem;
	}
	.data-item i {
		width: 70px;
		height: 70px;
		font-size: 2.5rem;
	}
	.data-item h3 {
		font-size: 2rem;
	}
	.contact-float {
		width: 65px;
		padding: 10px 5px;
	}
	.qrcode-small {
		width: 45px;
		height: 45px;
	}
	.qrcode-large {
		width: 120px;
		height: auto;
		right: 50px;
	}
	.contact-form, .contact-info-list {
		padding: 20px;
	}
}

@media (max-width: 576px) {
	.banner h1 {
		font-size: 2rem;
	}
	.banner h2 {
		font-size: 1.2rem;
	}
	.section-title h2 {
		font-size: 1.8rem;
	}
	.intro-content {
		flex-direction: column;
	}
	/* 客户评价在小屏幕下改为一行一个 */
	.customer-reviews .col-lg-3 {
		flex: 0 0 100%;
		max-width: 100%;
	}
}