:root {
	--primary-color: #004ea2;
	--primary-light: #2c80ff;
	--primary-dark: #003b7a;
	--secondary-color: #1f2833;
	--light-bg: #f8fafc;
	--dark-bg: #111827;
	--text-dark: #1f2937;
	--text-medium: #4b5563;
	--border-color: #e5e7eb;
	--gradient-tech: linear-gradient(135deg, #1a2980 0%, #26d0ce 100%);
	--gradient-tech2: linear-gradient(to right, #004ea2 0%, #175daa 40%, #26d0ce 100%);
	--module-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
	--gradient-main: linear-gradient(135deg, #004ea2 0%, #2c80ff 100%);
	--gradient-dark: linear-gradient(rgba(17, 24, 39, 0.85), rgba(17, 24, 39, 0.92));
	--hover-shadow: 0 8px 24px rgba(0, 78, 162, 0.15);
	--edu-gradient: linear-gradient(135deg, #2e5bff 0%, #2ec4ff 100%);
}

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
}

body {
	color: var(--text-dark);
	background-color: var(--light-bg);
	line-height: 1.6;
	scroll-behavior: smooth;
}

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

ul {
	list-style: none;
}

.container {
	width: 1152px;
	margin: 0 auto;
	padding: 0 15px;
}

/* 导航栏 */
.header-nav {
	background-color: #ffffff;
	border-bottom: 1px solid var(--border-color);
	box-shadow: var(--module-shadow);
	position: sticky;
	top: 0;
	z-index: 999;
}

.nav-content {
	display: flex;
	justify-content: space-between;
	align-items: center;
	height: 70px;
}

.logo {
	display: flex;
	align-items: center;
	gap: 10px;
}

.logo-img {
	width: 160px;
	height: 54px;
	object-fit: contain;
}

.nav-menu {
	display: flex;
	gap: 35px;
	align-items: center;
}

.nav-item {
	font-size: 15px;
	font-weight: 500;
	color: var(--text-dark);
	transition: color 0.3s;
	cursor: pointer;
	position: relative;
	padding: 20px 0;
}

.nav-item.active {
	color: #004ea2 !important;
	font-weight: 500 !important;
}

.nav-item.has-dropdown {
	padding-right: 15px;
}

.nav-item.has-dropdown::after {
	content: "\f078";
	font-family: "Font Awesome 6 Free";
	font-weight: 600;
	font-size: 10px;
	position: absolute;
	right: 0;
	top: 50%;
	transform: translateY(-50%);
}

.dropdown-menu {
	position: absolute;
	top: 100%;
	left: 0;
	background-color: white;
	min-width: 250px;
	border-radius: 6px;
	box-shadow: var(--module-shadow);
	border: 1px solid var(--border-color);
	padding: 8px 0;
	display: none;
	z-index: 9999;
}

.nav-item.has-dropdown:hover .dropdown-menu {
	display: block;
}

.dropdown-menu:hover {
	display: block;
}

.dropdown-menu li a {
	display: block;
	padding: 12px 20px;
	font-size: 14px;
	color: var(--text-dark);
	transition: all 0.3s;
}

.dropdown-menu li a:hover {
	background-color: var(--light-bg);
	color: var(--primary-color);
	padding-left: 24px;
}

/* 右侧功能区 */
.nav-right {
	display: flex;
	align-items: center;
	gap: 25px;
	font-size: 15px;
	font-weight: 500;
}

/* 课程咨询按钮 */
.contact-phone {
	background: var(--gradient-main);
	color: white;
	padding: 10px 20px;
	border-radius: 30px;
	font-weight: 600;
	display: flex;
	align-items: center;
	gap: 8px;
	transition: all 0.3s ease;
	box-shadow: 0 4px 12px rgba(0, 78, 162, 0.2);
	position: relative;
}

.contact-phone:hover {
	transform: translateY(-2px);
	box-shadow: 0 6px 18px rgba(0, 78, 162, 0.3);
	background: var(--primary-dark);
	color: white;
}

/* 二维码悬停弹出效果 */
.qr-popup {
	position: absolute;
	top: 100%;
	right: 0;
	background: white;
	padding: 15px;
	border-radius: 8px;
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
	display: none;
	z-index: 1000;
	margin-top: 10px;
	width: 180px;
	text-align: center;
	border: 1px solid var(--border-color);
}

.qr-popup::before {
	content: '';
	position: absolute;
	bottom: 100%;
	right: 20px;
	border-width: 8px;
	border-style: solid;
	border-color: transparent transparent white transparent;
}

.contact-phone:hover .qr-popup {
	display: block;
}

.qr-popup img {
	width: 150px;
	height: 150px;
	margin-bottom: 8px;
	border-radius: 4px;
}

.qr-popup p {
	font-size: 12px;
	color: var(--text-medium);
	margin: 0;
}

/* 移动端导航切换按钮 */
.mobile-toggle {
	display: none;
	background: none;
	border: none;
	font-size: 24px;
	color: var(--text-dark);
	cursor: pointer;
	z-index: 1000;
}

/* Banner区域 - 常见问题页面 */
.faq-hero {
	background: var(--gradient-main);
	color: white;
	padding: 50px 0 40px;
	text-align: center;
	margin-bottom: 40px;
	min-height: 200px;
	display: flex;
	align-items: center;
	justify-content: center;
}

.faq-hero-title {
	font-size: 36px;
	margin-bottom: 15px;
	color: white;
	line-height: 1.2;
	font-weight: 800;
	max-width: 900px;
	margin-left: auto;
	margin-right: auto;
}

.faq-hero-subtitle {
	font-size: 17px;
	margin-bottom: 25px;
	opacity: 0.9;
	max-width: 800px;
	margin-left: auto;
	margin-right: auto;
	line-height: 1.6;
}

/* 快速导航 - 用于桌面端 */
.quick-nav {
	background: white;
	border-radius: 12px;
	box-shadow: var(--module-shadow);
	border: 1px solid var(--border-color);
	padding: 25px;
	margin-bottom: 30px;
	display: none;
}

.quick-nav h3 {
	font-size: 18px;
	color: var(--primary-color);
	margin-bottom: 20px;
	display: flex;
	align-items: center;
	gap: 10px;
}

.quick-nav-links {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
}

.quick-nav-link {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 12px 20px;
	background: var(--light-bg);
	border: 1px solid var(--border-color);
	border-radius: 8px;
	font-size: 15px;
	color: var(--text-dark);
	transition: all 0.3s;
	flex: 1;
	min-width: 180px;
}

.quick-nav-link:hover {
	background: var(--primary-color);
	color: white;
	border-color: var(--primary-color);
	transform: translateY(-2px);
	box-shadow: var(--hover-shadow);
}

.quick-nav-link i {
	font-size: 16px;
}

/* 手风琴式FAQ设计 - 移动端友好 */
.faq-accordion {
	margin-bottom: 60px;
}

.faq-category {
	background: white;
	border-radius: 12px;
	box-shadow: var(--module-shadow);
	border: 1px solid var(--border-color);
	margin-bottom: 20px;
	overflow: hidden;
	transition: all 0.3s ease;
}

.faq-category.active {
	box-shadow: 0 8px 25px rgba(0, 78, 162, 0.15);
	border-color: var(--primary-light);
}

.category-header {
	padding: 20px 25px;
	background: white;
	display: flex;
	justify-content: space-between;
	align-items: center;
	cursor: pointer;
	border-bottom: 1px solid transparent;
	transition: all 0.3s;
}

.faq-category.active .category-header {
	background: linear-gradient(90deg, rgba(0, 78, 162, 0.05) 0%, rgba(0, 78, 162, 0.02) 100%);
	border-bottom-color: var(--border-color);
}

.category-title {
	display: flex;
	align-items: center;
	gap: 15px;
	font-size: 20px;
	font-weight: 600;
	color: var(--text-dark);
}

.category-title i {
	color: var(--primary-color);
	font-size: 22px;
	width: 30px;
	text-align: center;
}

.category-toggle {
	color: var(--primary-color);
	font-size: 18px;
	transition: transform 0.3s;
}

.faq-category.active .category-toggle {
	transform: rotate(180deg);
}

.category-content {
	padding: 0;
	max-height: 0;
	overflow: hidden;
	transition: all 0.3s ease;
}

.faq-category.active .category-content {
	padding: 25px;
	max-height: 5000px;
}

.category-description {
	color: var(--text-medium);
	font-size: 16px;
	margin-bottom: 25px;
	padding-bottom: 20px;
	border-bottom: 1px solid var(--border-color);
}

/* 问题列表样式 */
.question-item {
	margin-bottom: 30px;
	padding-bottom: 30px;
	border-bottom: 1px solid var(--border-color);
}

.question-item:last-child {
	border-bottom: none;
	margin-bottom: 0;
	padding-bottom: 0;
}

.question-title {
	font-size: 18px;
	font-weight: 600;
	color: var(--primary-color);
	margin-bottom: 15px;
	line-height: 1.4;
}

.question-answer {
	color: var(--text-medium);
	line-height: 1.8;
}

.question-answer ul,
.question-answer ol {
	margin-left: 20px;
	margin-top: 10px;
	margin-bottom: 15px;
}

.question-answer li {
	margin-bottom: 8px;
	position: relative;
	padding-left: 5px;
}

.question-answer strong {
	color: var(--text-dark);
}

.highlight-box {
	background-color: rgba(0, 78, 162, 0.05);
	border-left: 4px solid var(--primary-color);
	padding: 15px 20px;
	margin: 15px 0;
	border-radius: 0 8px 8px 0;
}

/* CTA区域 */
.cta-section {
	padding: 60px 0;
	background: var(--gradient-tech),
		radial-gradient(circle at 30% 20%, rgba(26, 41, 128, 0.4) 0%, transparent 50%),
		radial-gradient(circle at 70% 80%, rgba(38, 208, 206, 0.3) 0%, transparent 50%);
	color: white;
	text-align: center;
}

.cta-section .section-title {
	color: white;
	margin-bottom: 20px;
	font-size: 32px;
}

.cta-section .section-subtitle {
	color: rgba(255, 255, 255, 0.9);
	margin-bottom: 40px;
	font-size: 18px;
}

.cta-button {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	background: white;
	color: var(--primary-color);
	padding: 16px 35px;
	border-radius: 50px;
	font-weight: 600;
	font-size: 18px;
	text-decoration: none;
	transition: all 0.3s ease;
	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.cta-button:hover {
	transform: translateY(-3px);
	box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
	color: var(--primary-color);
}

/* 底部信息 */
.footer {
	background-color: var(--secondary-color);
	color: rgba(255, 255, 255, 0.8);
	padding: 50px 0 20px;
}

.footer-layout {
	display: grid;
	grid-template-columns: 1.2fr 1fr 1fr 1.5fr 1fr;
	gap: 30px;
	margin-bottom: 30px;
	padding-bottom: 30px;
	border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-col {
	/* 每列自动分配宽度 */
}

.footer-logo {
	font-size: 20px;
	font-weight: 700;
	color: white;
	display: flex;
	align-items: center;
	gap: 8px;
	margin-bottom: 15px;
}

.footer-desc {
	font-size: 13px;
	line-height: 1.7;
	margin-bottom: 20px;
}

.footer-contact {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 13px;
	margin-bottom: 10px;
}

.footer-title {
	font-size: 16px;
	font-weight: 600;
	color: white;
	margin-bottom: 15px;
}

.footer-list li {
	font-size: 13px;
	margin-bottom: 8px;
	cursor: pointer;
	transition: color 0.3s;
}

.footer-list li:hover {
	color: var(--primary-color);
}

/* 咨询热线列样式 */
.contact-column {
	display: flex;
	flex-direction: column;
}

.hotline-box {
	background: rgba(255, 255, 255, 0.05);
	padding: 15px;
	border-radius: 8px;
	margin-top: 10px;
	border: 1px solid rgba(255, 255, 255, 0.1);
}

.hotline-number {
	font-size: 18px;
	font-weight: 600;
	color: white;
	margin: 10px 0;
	display: flex;
	align-items: center;
	gap: 10px;
}

.hotline-number i {
	color: var(--primary-light);
}

/* 二维码样式 */
.qr-column {
	text-align: center;
}

.qr-code {
	margin-top: 0;
	text-align: center;
}

.qr-code img {
	width: 120px;
	height: 120px;
	border-radius: 8px;
	background: white;
	padding: 8px;
}

.qr-code p {
	font-size: 12px;
	margin-top: 8px;
	color: rgba(255, 255, 255, 0.7);
}

.copyright {
	text-align: center;
	font-size: 13px;
	color: rgba(255, 255, 255, 0.7);
	border-top: none;
}

/* 移动端联系人按钮 */
.mobile-contact-btn {
	display: none;
	position: fixed;
	bottom: 20px;
	right: 20px;
	background: var(--gradient-main);
	color: white;
	width: 60px;
	height: 60px;
	border-radius: 50%;
	align-items: center;
	justify-content: center;
	box-shadow: 0 4px 15px rgba(0, 78, 162, 0.3);
	z-index: 997;
	font-size: 24px;
	text-decoration: none;
	transition: transform 0.3s;
}

.mobile-contact-btn:hover {
	transform: scale(1.1);
}

/* 响应式设计 */
@media (max-width: 1200px) {
	.container {
		width: 95%;
	}

	.footer-layout {
		grid-template-columns: repeat(3, 1fr);
		gap: 20px;
	}

	.faq-hero-title {
		font-size: 30px;
	}
}

@media (max-width: 992px) {
	.quick-nav {
		display: block;
	}
}

@media (max-width: 768px) {

	/* 移动端导航样式 */
	.mobile-toggle {
		display: block;
	}

	.nav-menu {
		position: fixed;
		top: 70px;
		left: -100%;
		width: 100%;
		height: calc(100vh - 70px);
		background: white;
		flex-direction: column;
		align-items: flex-start;
		padding: 30px;
		transition: left 0.3s ease;
		box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
		overflow-y: auto;
		z-index: 998;
		gap: 0;
	}

	.nav-menu.active {
		left: 0;
	}

	.nav-item {
		margin: 0 0 15px 0;
		width: 100%;
		padding: 10px 0;
	}

	.dropdown-menu {
		position: static;
		box-shadow: none;
		border: none;
		padding-left: 20px;
		display: none;
		margin-top: 10px;
	}

	.nav-item.has-dropdown.active .dropdown-menu {
		display: block;
	}

	.nav-item.has-dropdown::after {
		right: 20px;
	}

	/* Banner区域优化 */
	.faq-hero {
		padding: 40px 0 30px;
		min-height: 180px;
	}

	.faq-hero-title {
		font-size: 26px;
	}

	.faq-hero-subtitle {
		font-size: 16px;
	}

	/* 快速导航 - 移动端样式 */
	.quick-nav {
		padding: 20px;
		margin-bottom: 20px;
	}

	.quick-nav-links {
		flex-direction: column;
	}

	.quick-nav-link {
		width: 100%;
		min-width: auto;
	}

	/* 手风琴优化 */
	.category-header {
		padding: 18px 20px;
	}

	.category-title {
		font-size: 18px;
		gap: 12px;
	}

	.category-title i {
		font-size: 20px;
	}

	.faq-category.active .category-content {
		padding: 20px;
	}

	.category-description {
		font-size: 15px;
		margin-bottom: 20px;
	}

	.question-title {
		font-size: 17px;
	}

	.question-answer {
		font-size: 15px;
	}

	/* 底部布局优化 */
	.footer-layout {
		grid-template-columns: repeat(2, 1fr);
	}

	.nav-right {
		display: none;
	}

	/* 移动端显示简易咨询按钮 */
	.mobile-contact-btn {
		display: flex;
	}
}

@media (max-width: 576px) {
	.faq-hero-title {
		font-size: 24px;
	}

	.faq-hero-subtitle {
		font-size: 15px;
	}

	.quick-nav h3 {
		font-size: 16px;
	}

	.category-header {
		padding: 16px 18px;
	}

	.category-title {
		font-size: 16px;
		gap: 10px;
	}

	.category-title i {
		font-size: 18px;
	}

	.faq-category.active .category-content {
		padding: 18px;
	}

	.question-item {
		margin-bottom: 25px;
		padding-bottom: 25px;
	}

	.question-title {
		font-size: 16px;
	}

	.highlight-box {
		padding: 12px 16px;
	}

	/* CTA区域优化 */
	.cta-section {
		padding: 50px 0;
	}

	.cta-section .section-title {
		font-size: 26px;
	}

	.cta-section .section-subtitle {
		font-size: 16px;
	}

	.cta-button {
		padding: 14px 28px;
		font-size: 16px;
	}

	/* 底部5列布局小屏响应式 */
	.footer-layout {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 480px) {
	.faq-hero-title {
		font-size: 22px;
	}

	.faq-hero {
		padding: 35px 0 25px;
	}

	.category-header {
		padding: 14px 16px;
	}

	.category-title {
		font-size: 15px;
	}
}