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

:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --text-color: #333;
    --text-light: #777;
    --white: #fff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

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

ul {
    list-style: none;
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 15px;
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--secondary-color);
    color: var(--white);
}

.btn-secondary:hover {
    background: #27ae60;
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
    font-size: 0.9rem;
    color: var(--text-light);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 15px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.nav-logo i {
    margin-right: 8px;
}

.nav-menu {
    display: flex;
}

.nav-link {
    margin: 0 15px;
    font-weight: 600;
    color: var(--dark-color);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.nav-menu li.active a {
    color: var(--primary-color);
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background: var(--dark-color);
    transition: var(--transition);
}

.subnav {
    text-align: center;
    display: none;
}

/* Banner部分 */
.banner {
    display: flex;
    align-items: center;
    min-height: 100vh;
    padding: 100px 0 50px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.banner-content {
    flex: 1;
    padding: 0 30px;
}

.banner-content h1 {
    font-size: 3.5rem;
    color: var(--dark-color);
    margin-bottom: 20px;
    line-height: 1.2;
}

.banner-content p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
    max-width: 500px;
}

.banner-buttons {
    display: flex;
    gap: 15px;
}

.banner-image {
    flex: 1;
    text-align: center;
}

.banner-image img {
    border-radius: 10px;
    box-shadow: var(--shadow);
    max-height: 300px;
    object-fit: cover;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background: var(--white);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-light);
}

.stats {
    display: flex;
    margin-top: 30px;
    gap: 30px;
}

.stat {
    text-align: center;
}

.stat h4 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat p {
    font-size: 1rem;
    color: var(--text-light);
}

.about-image {
    flex: 1;
}

.about-image img {
    border-radius: 10px;
    box-shadow: var(--shadow);
}

/* 课程服务 */
.courses {
    padding: 100px 0;
    background: #f8f9fa;
}

.course-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.course-card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.course-icon {
    text-align: center;
}

.course-icon img {
    width: 30%;
}

.course-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.course-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.course-card ul {
    text-align: left;
    margin-bottom: 25px;
}

.course-card ul li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
    color: var(--text-light);
}

.course-card ul li:last-child {
    border-bottom: none;
}

/* 师资团队 */
.teachers {
    padding: 100px 0;
    background: var(--white);
}

.teacher-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.teacher-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.teacher-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.teacher-image {
    height: 250px;
    overflow: hidden;
}

.teacher-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.teacher-card:hover .teacher-image img {
    transform: scale(1.1);
}

.teacher-card h3 {
    font-size: 1.5rem;
    margin: 20px 0 5px;
    color: var(--dark-color);
}

.teacher-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.teacher-card p {
    padding: 0 20px 20px;
    color: var(--text-light);
}

/* 新闻动态 */
.news {
    padding: 100px 0;
    background: #f8f9fa;
}

.news-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.news-image {
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-content {
    padding: 25px;
}

.news-date {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.news-content h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.news-content p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--dark-color);
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: var(--white);
}

.contact-content {
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
    justify-content: flex-start;
}

.contact-item img {
    width: 30px;
    margin: 20px;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 15px;
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.contact-item p {
    color: var(--text-light);
}

.contact-form {
    flex: 1;
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
}

.contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

/* 页脚 */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 70px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: var(--white);
}

.footer-section h3 i {
    margin-right: 10px;
    color: var(--primary-color);
}

.footer-section p {
    color: #bdc3c7;
    margin-bottom: 20px;
    font-size: 14px;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: #bdc3c7;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
}

.subscribe-form {
    display: flex;
    margin-top: 15px;
}

.subscribe-form input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 30px 0 0 30px;
    font-size: 1rem;
}

.subscribe-form .btn {
    border-radius: 0 30px 30px 0;
    padding: 12px 20px;
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #bdc3c7;
}

/* 页面标题区域 - 通用样式 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #2c3e50 100%);
    color: var(--white);
    padding: 120px 0 80px;
    text-align: center;
    margin-top: 70px;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.page-header p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
}

/* 面包屑导航 - 通用样式 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--white);
}

.breadcrumb .current {
    color: var(--white);
    font-weight: 600;
}

.breadcrumb i {
    font-size: 0.7rem;
    opacity: 0.7;
}

/* 分页 - 通用样式 */
.teachers-pagination,
.news-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 30px;
}

.teachers-pagination li,
.news-pagination li {
    padding: 10px 15px;
    background: var(--white);
    border: 1px solid #ddd;
    border-radius: 5px;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.teachers-pagination li:hover,
.teachers-pagination li.active,
.news-pagination li:hover,
.news-pagination li.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

/* 分类导航 - 通用样式 */
.categories-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 30px;
}

.category-btn {
    padding: 10px 20px;
    background: var(--white);
    border: 1px solid #ddd;
    border-radius: 30px;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
}

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

.search-filter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.search-box {
    display: flex;
    flex: 1;
    max-width: 400px;
}

.search-box input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 30px 0 0 30px;
    font-size: 1rem;
}

.search-btn {
    padding: 0 20px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 0 30px 30px 0;
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    background: #2980b9;
}

.filter-options {
    display: flex;
    gap: 15px;
}

.filter-options select {
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background: var(--white);
    font-size: 1rem;
}

/* 标签页 - 通用样式 */
.tabs-container {
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.tabs-header {
    display: flex;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
    overflow-x: auto;
}

.tab-btn {
    padding: 20px 30px;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    border-bottom: 3px solid transparent;
}

.tab-btn:hover {
    color: var(--primary-color);
    background: rgba(52, 152, 219, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: var(--white);
}

.tabs-content {
    padding: 0;
}

.tab-panel {
    display: none;
    padding: 40px;
}

.tab-panel.active {
    display: block;
}

/* 侧边栏 - 通用样式 */
.sidebar-widget {
    background: var(--white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.widget-title {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--dark-color);
    position: relative;
    padding-bottom: 10px;
}

.widget-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

/* FAQ - 通用样式 */
.faq-item {
    border: 1px solid #e9ecef;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    background: #f8f9fa;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: #e9ecef;
}

.faq-question h4 {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin: 0;
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p,
.faq-answer ul {
    padding: 0 25px 25px;
    color: var(--text-light);
    line-height: 1.6;
}

.faq-answer ul {
    margin: 15px 0;
}

.faq-answer li {
    margin-bottom: 8px;
    position: relative;
    padding-left: 15px;
}

.faq-answer li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

/* 按钮样式扩展 */
.btn-large {
    padding: 18px 30px;
    font-size: 1.1rem;
    font-weight: 600;
}

.btn-block {
    width: 100%;
    text-align: center;
    justify-content: center;
}

/* 关于我们页面专用样式 */
.company-intro {
    padding: 100px 0;
    background: var(--white);
}

.intro-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.intro-text {
    flex: 1;
}

.intro-text h2 {
    font-size: 2.2rem;
    color: var(--dark-color);
    margin-bottom: 25px;
    position: relative;
}

.intro-text h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.intro-text p {
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 1.8;
}

.mission-vision {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 40px;
}

.mission,
.vision {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.mission h3,
.vision h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.mission h3 img,
.vision h3 img {
    width: 16%;
    margin-right: 10px;
    vertical-align: middle;
}

.mission p,
.vision p {
    color: var(--text-light);
    line-height: 1.6;
}

.intro-image {
    flex: 1;
}

.intro-image img {
    border-radius: 10px;
    box-shadow: var(--shadow);
    width: 100%;
}

/* 核心价值观 */
.core-values {
    padding: 100px 0;
    background: #f8f9fa;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.value-card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.value-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.value-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.value-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 教育理念 */
.education-philosophy {
    padding: 100px 0;
    background: var(--white);
}

.philosophy-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.philosophy-image {
    flex: 1;
}

.philosophy-image img {
    border-radius: 10px;
    box-shadow: var(--shadow);
    width: 100%;
}

.philosophy-text {
    flex: 1;
}

.philosophy-text h2 {
    font-size: 2.2rem;
    color: var(--dark-color);
    margin-bottom: 25px;
    position: relative;
}

.philosophy-text h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.philosophy-text>p {
    margin-bottom: 30px;
    color: var(--text-light);
    line-height: 1.8;
}

.principles {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.principle {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    transition: var(--transition);
}

.principle:hover {
    background: var(--primary-color);
    color: var(--white);
}

.principle:hover h4,
.principle:hover p {
    color: var(--white);
}

.principle h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.principle h4 i {
    margin-right: 10px;
    color: var(--primary-color);
}

.principle:hover h4 i {
    color: var(--white);
}

.principle p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 发展历程 */
.development-timeline {
    padding: 100px 0;
    background: #f8f9fa;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    width: 100%;
}

.timeline-item:nth-child(odd) {
    padding-right: calc(50% + 30px);
    text-align: right;
}

.timeline-item:nth-child(even) {
    padding-left: calc(50% + 30px);
}

.timeline-date {
    position: absolute;
    top: 0;
    width: 100px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    font-weight: 600;
    z-index: 1;
}

.timeline-item:nth-child(odd) .timeline-date {
    right: calc(50% - 50px);
}

.timeline-item:nth-child(even) .timeline-date {
    left: calc(50% - 50px);
}

.timeline-content {
    background: var(--white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content::after {
    content: '';
    position: absolute;
    top: 15px;
    left: 100%;
    border-width: 10px;
    border-style: solid;
    border-color: transparent transparent transparent var(--white);
}

.timeline-item:nth-child(even) .timeline-content::after {
    content: '';
    position: absolute;
    top: 15px;
    right: 100%;
    border-width: 10px;
    border-style: solid;
    border-color: transparent var(--white) transparent transparent;
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.timeline-content p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 数据统计 */
.stats-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #2c3e50 100%);
    color: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.load-more {
    text-align: center;
}

.faq-section {
    padding: 80px 0;
    background: var(--white);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.stat-numbers {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 团队风采 */
.team-showcase {
    padding: 100px 0;
    background: var(--white);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.team-member {
    text-align: center;
    transition: var(--transition);
}

.team-member:hover {
    transform: translateY(-10px);
}

.member-photo {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 20px;
    border: 5px solid #f8f9fa;
    transition: var(--transition);
}

.team-member:hover .member-photo {
    border-color: var(--primary-color);
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-member h3 {
    font-size: 1.4rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.member-role {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.member-desc {
    color: var(--text-light);
    line-height: 1.6;
}

.team-cta {
    text-align: center;
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
    max-width: 700px;
    margin: 0 auto;
}

.team-cta h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.team-cta p {
    margin-bottom: 25px;
    color: var(--text-light);
}

/* 合作伙伴 */
.partners {
    padding: 80px 0;
    background: #f8f9fa;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 40px;
    align-items: center;
}

.partner-logo {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    transition: var(--transition);
}

.partner-logo:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.partner-logo img {
    max-width: 100%;
    max-height: 80px;
}

/* 课程服务页面专用样式 */
.course-categories {
    padding: 40px 0;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

/* 热门课程推荐 */
.featured-courses {
    padding: 80px 0;
    background: var(--white);
}

.featured-courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.featured-course-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    position: relative;
}

.featured-course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.course-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 5px 12px;
    background: var(--secondary-color);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 1;
}

.course-image {
    height: 200px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.featured-course-card:hover .course-image img {
    transform: scale(1.05);
}

.course-content {
    padding: 25px;
}

.course-category {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.course-category.programming {
    background: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
}

.course-category.language {
    background: rgba(46, 204, 113, 0.1);
    color: var(--secondary-color);
}

.course-category.art {
    background: rgba(155, 89, 182, 0.1);
    color: #9b59b6;
}

.course-category.thinking {
    background: rgba(241, 196, 15, 0.1);
    color: #f1c40f;
}

.course-category.business {
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
}

.course-content h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--dark-color);
}

.course-description {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.course-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.course-rating {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.stars {
    color: #f1c40f;
}

.rating-value {
    font-weight: 600;
    color: var(--dark-color);
}

.review-count {
    color: var(--text-light);
    font-size: 0.9rem;
}

.course-price {
    margin-bottom: 20px;
}

.current-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.original-price {
    font-size: 1rem;
    color: var(--text-light);
    text-decoration: line-through;
    margin-left: 10px;
}

.course-actions {
    display: flex;
    gap: 10px;
}

.course-actions .btn {
    flex: 1;
    padding: 10px 15px;
    font-size: 0.9rem;
}

/* 全部课程展示 */
.all-courses {
    padding: 80px 0;
    background: #f8f9fa;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

/* 学习路径推荐 */
.learning-paths {
    padding: 80px 0;
    background: var(--white);
}

.paths-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.path-card {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid #e9ecef;
}

.path-card:hover {
    background: var(--white);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.path-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.path-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.path-description {
    color: var(--text-light);
    margin-bottom: 25px;
}

.path-courses {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 25px;
}

.path-course {
    padding: 8px 15px;
    background: var(--white);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.path-duration {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 25px;
    color: var(--text-light);
}

/* 学员评价 */
.student-reviews {
    padding: 80px 0;
    background: #f8f9fa;
}

.reviews-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.review-card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.review-content {
    margin-bottom: 25px;
}

.review-content p {
    font-style: italic;
    color: var(--text-color);
    line-height: 1.6;
    position: relative;
}

.review-content p::before {
    content: '"';
    font-size: 3rem;
    color: var(--primary-color);
    position: absolute;
    top: -15px;
    left: -10px;
    opacity: 0.3;
}

.reviewer {
    display: flex;
    align-items: center;
    gap: 15px;
}

.reviewer-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
}

.reviewer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.reviewer-info h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.reviewer-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 师资团队页面专用样式 */
.teacher-stats {
    padding: 60px 0;
    background: #f8f9fa;
}

.teacher-categories {
    padding: 40px 0;
    background: var(--white);
    border-bottom: 1px solid #e9ecef;
}

/* 核心教师团队 */
.core-teachers {
    padding: 80px 0;
    background: #f8f9fa;
}

.teachers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.teacher-badges {
    position: absolute;
    top: 15px;
    right: 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    text-align: center;
}

.badge.expert {
    background: var(--primary-color);
    color: var(--white);
}

.badge.popular {
    background: var(--secondary-color);
    color: var(--white);
}

.teacher-content {
    padding: 25px;
}

.teacher-content h3 {
    font-size: 1.5rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.teacher-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 1rem;
}

.teacher-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.teacher-description {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.teacher-expertise {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.expertise-tag {
    padding: 5px 12px;
    background: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.teacher-rating {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.teacher-actions {
    display: flex;
    gap: 10px;
}

.teacher-actions .btn {
    flex: 1;
    padding: 10px 15px;
    font-size: 0.9rem;
}

/* 教学特色 */
.teaching-features {
    padding: 80px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--white);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 教师成就 */
.teacher-achievements {
    padding: 80px 0;
    background: #f8f9fa;
}

.achievements-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.achievement-card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.achievement-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.achievement-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.achievement-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.achievement-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 加入我们 */
.join-us {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #2c3e50 100%);
    color: var(--white);
    text-align: center;
}

.join-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.join-content>p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

.join-features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 40px;
}

.join-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
}

.join-feature i {
    font-size: 1.5rem;
}

/* 新闻动态页面专用样式 */
.news-categories {
    padding: 40px 0;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

/* 主要内容区域 */
.news-main {
    padding: 60px 0;
    background: var(--white);
}

.news-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

/* 左侧新闻列表 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e9ecef;
}

.section-title h2 {
    font-size: 1.8rem;
    color: var(--dark-color);
    position: relative;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -17px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--primary-color);
}

.view-all {
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
}

.view-all:hover {
    color: var(--dark-color);
}

/* 特色新闻 */
.featured-news-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.featured-news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.featured-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.featured-news-card:hover .featured-image img {
    transform: scale(1.05);
}

.news-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--white);
}

.news-badge.featured {
    background: var(--secondary-color);
}

.featured-content {
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 15px;
}

.news-category {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--white);
}

.news-category.company {
    background: var(--primary-color);
}

.news-category.industry {
    background: var(--secondary-color);
}

.news-category.education {
    background: #9b59b6;
}

.news-category.activity {
    background: #f39c12;
}

.news-category.media {
    background: #e74c3c;
}

.news-date,
.news-views {
    color: var(--text-light);
    font-size: 0.9rem;
}

.news-date i,
.news-views i {
    margin-right: 5px;
}

.news-title {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--dark-color);
    line-height: 1.3;
}

.news-excerpt {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.news-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 25px;
}

.news-tag {
    padding: 4px 12px;
    background: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* 新闻列表项 */
.news-items {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.news-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 25px;
    background: var(--white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid #f8f9fa;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    border-color: var(--primary-color);
}

.news-image {
    height: 150px;
    border-radius: 8px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.news-content {
    display: flex;
    flex-direction: column;
}

.news-content .news-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.news-content .news-excerpt {
    margin-bottom: 15px;
    flex-grow: 1;
}

.news-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* 右侧边栏 */
.news-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* 热门新闻 */
.popular-news {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.popular-news-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 12px 0;
    border-bottom: 1px solid #e9ecef;
    transition: var(--transition);
}

.popular-news-item:last-child {
    border-bottom: none;
}

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

.popular-rank {
    width: 25px;
    height: 25px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    flex-shrink: 0;
}

.popular-news-item:nth-child(1) .popular-rank {
    background: #e74c3c;
}

.popular-news-item:nth-child(2) .popular-rank {
    background: #f39c12;
}

.popular-news-item:nth-child(3) .popular-rank {
    background: #f1c40f;
}

.popular-content h4 {
    font-size: 0.95rem;
    margin-bottom: 5px;
    line-height: 1.4;
}

.popular-content h4 a {
    color: var(--dark-color);
    transition: var(--transition);
}

.popular-content h4 a:hover {
    color: var(--primary-color);
}

.popular-meta {
    display: flex;
    gap: 10px;
    font-size: 0.8rem;
    color: var(--text-light);
}

/* 分类列表 */
.category-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background: var(--white);
    border-radius: 5px;
    transition: var(--transition);
    color: var(--text-color);
}

.category-item:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateX(5px);
}

.category-name {
    font-weight: 600;
}

.category-count {
    background: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 600;
}

.category-item:hover .category-count {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

/* 标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 6px 12px;
    background: var(--white);
    color: var(--text-color);
    border-radius: 20px;
    font-size: 0.8rem;
    transition: var(--transition);
}

.tag:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

/* 订阅小部件 */
.subscribe-widget {
    background: linear-gradient(135deg, var(--primary-color) 0%, #2c3e50 100%);
    color: var(--white);
}

.subscribe-widget .widget-title {
    color: var(--white);
}

.subscribe-widget .widget-title::after {
    background: var(--white);
}

.subscribe-widget p {
    margin-bottom: 20px;
    opacity: 0.9;
}

.subscribe-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.subscribe-form img {
    width: 50%;
}

.subscribe-form input {
    padding: 12px 15px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
}

.subscribe-form .btn {
    border-radius: 5px;
}

/* 新闻通讯 */
.newsletter {
    padding: 60px 0;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
}

.newsletter-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.newsletter-text h2 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.newsletter-text p {
    color: var(--text-light);
}

.newsletter-form {
    display: flex;
    gap: 10px;
    flex: 1;
    max-width: 500px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.newsletter-form .btn {
    border-radius: 5px;
}

/* 联系我们页面专用样式 */
.contact-info {
    padding: 80px 0 80px 40px;
    background: #f8f9fa;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.info-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid #f8f9fa;
}

.info-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.info-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.info-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.info-card p {
    color: var(--text-light);
    margin-bottom: 10px;
    line-height: 1.6;
}

.info-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 600;
    margin-top: 15px;
    transition: var(--transition);
}

.info-link:hover {
    color: var(--dark-color);
    gap: 12px;
}

/* 主要内容区域 */
.contact-main {
    padding: 80px 0;
    background: var(--white);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-form {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.error-message {
    display: block;
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 5px;
    min-height: 20px;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 5px;
}

.checkbox-group label {
    margin-bottom: 0;
    font-weight: normal;
    line-height: 1.5;
}

.submit-btn {
    position: relative;
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    transition: var(--transition);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* 联系详情 */
.contact-details {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.details-section h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--dark-color);
    position: relative;
    padding-bottom: 10px;
}

.details-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary-color);
}

.campus-list,
.department-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.campus-item,
.department-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.campus-item h4,
.department-item h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.campus-item p,
.department-item p {
    color: var(--text-light);
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.campus-item i,
.department-item i {
    color: var(--primary-color);
    width: 16px;
}

/* 社交媒体链接 */
.social-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    color: var(--text-color);
    transition: var(--transition);
    border: 1px solid transparent;
}

.social-link:hover {
    background: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-3px);
    color: var(--primary-color);
}

.social-link i {
    font-size: 1.5rem;
}

.social-link.wechat:hover {
    color: #07c160;
    border-color: #07c160;
}

.social-link.weibo:hover {
    color: #e6162d;
    border-color: #e6162d;
}

.social-link.qq:hover {
    color: #12b7f5;
    border-color: #12b7f5;
}

.social-link.linkedin:hover {
    color: #0077b5;
    border-color: #0077b5;
}

/* 地图区域 */
.map-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.map-container {
    margin-bottom: 40px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.map-placeholder {
    background: linear-gradient(135deg, var(--primary-color) 0%, #2c3e50 100%);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
}

.map-content i {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.8;
}

.map-content h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.map-content p {
    font-size: 1.1rem;
    margin-bottom: 25px;
    opacity: 0.9;
}

.map-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.location-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.location-card {
    background: var(--white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.location-card:hover,
.location-card.active {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.location-card h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.location-card p {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.5;
}

.location-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.location-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.location-meta i {
    color: var(--primary-color);
    width: 16px;
}

/* 预约咨询 */
.appointment-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #2c3e50 100%);
    color: var(--white);
}

.appointment-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.appointment-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.appointment-text>p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.appointment-features {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
}

.feature i {
    font-size: 1.5rem;
    opacity: 0.9;
}

.appointment-form {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.quick-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.quick-form .form-group input,
.quick-form .form-group select {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    padding: 15px;
    border-radius: 5px;
    width: 100%;
}

.quick-form .btn {
    margin-top: 10px;
}

/* 课程详情页面专用样式 */
.course-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 100px 0 60px;
    margin-top: 70px;
}

.course-hero {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.course-basic-info .course-category {
    display: inline-block;
    padding: 6px 15px;
    background: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.course-basic-info h1 {
    font-size: 2.8rem;
    margin-bottom: 15px;
    color: var(--dark-color);
    line-height: 1.2;
}

.course-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.5;
}

.course-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 25px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.meta-item i {
    width: 30px;
    height: 30px;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.meta-item i.time_i {
    background: url(../images/time_i.png) no-repeat;
    background-size: 90%;
}

.meta-item i.human_i {
    background: url(../images/human_i.png) no-repeat;
    background-size: 98%;
}

.meta-item i.teacher_i {
    background: url(../images/teacher_i.png) no-repeat;
    background-size: 99%;
}

.meta-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 5px;
}

.meta-value {
    display: block;
    font-weight: 600;
    color: var(--dark-color);
}

.course-rating {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.rating-stars {
    display: flex;
    align-items: center;
    gap: 5px;
}

.rating-stars i {
    color: #f1c40f;
}

.rating-value {
    font-weight: 700;
    color: var(--dark-color);
    margin-left: 5px;
}

.review-count,
.student-count {
    color: var(--text-light);
    font-size: 0.9rem;
}

.student-count i {
    margin-right: 5px;
    color: var(--primary-color);
}

/* 报名卡片 */
.course-enrollment {
    position: sticky;
    top: 100px;
}

.enrollment-card {
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.course-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pricing-info {
    padding: 25px;
    border-bottom: 1px solid #e9ecef;
}

.price {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.current-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.original-price {
    font-size: 1.2rem;
    color: var(--text-light);
    text-decoration: line-through;
}

.discount {
    background: #e74c3c;
    color: var(--white);
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.sale-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #e74c3c;
    font-size: 0.9rem;
}

.enrollment-actions {
    padding: 25px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.btn-enroll,
.btn-try {
    padding: 15px;
    font-size: 1.1rem;
    font-weight: 600;
}

.btn-enroll i,
.btn-try i {
    margin-right: 8px;
}

.course-features {
    padding: 20px 25px;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
}

.feature {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.feature:last-child {
    margin-bottom: 0;
}

.feature i {
    color: var(--secondary-color);
    width: 20px;
}

.feature span {
    color: var(--text-color);
    font-size: 0.9rem;
}

/* 课程内容区域 */
.course-content {
    background: var(--white);
}

.content-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

/* 课程概述样式 */
.course-intro h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.course-intro>p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-light);
    margin-bottom: 40px;
}

.highlight-features {
    margin-bottom: 50px;
}

.highlight-features h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.highlight-feature {
    text-align: center;
    padding: 30px 20px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: var(--transition);
}

.highlight-feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.highlight-feature i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.highlight-feature h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.highlight-feature p {
    color: var(--text-light);
    line-height: 1.6;
}

.learning-outcomes {
    margin-bottom: 50px;
}

.learning-outcomes h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--dark-color);
}

.outcomes-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
}

.outcome-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 0;
}

.outcome-item i {
    color: var(--secondary-color);
    font-size: 1.1rem;
}

.outcome-item span {
    color: var(--text-color);
    font-weight: 500;
}

.target-audience h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--dark-color);
}

.audience-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.audience-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 10px;
}

.audience-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-top: 5px;
}

.audience-item h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.audience-item p {
    color: var(--text-light);
    line-height: 1.5;
}

/* 课程大纲样式 */
.curriculum-section h2 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.curriculum-section>p {
    color: var(--text-light);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.modules-container {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.module {
    border: 1px solid #e9ecef;
    border-radius: 10px;
    overflow: hidden;
}

.module-header {
    background: #f8f9fa;
    padding: 20px 25px;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.module-header h3 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin: 0;
}

.module-duration {
    color: var(--text-light);
    font-size: 0.9rem;
}

.module-duration i {
    margin-right: 5px;
}

.lessons-list {
    padding: 0;
}

.lesson {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 25px;
    border-bottom: 1px solid #f8f9fa;
    transition: var(--transition);
}

.lesson:last-child {
    border-bottom: none;
}

.lesson:hover {
    background: #f8f9fa;
}

.lesson i {
    color: var(--primary-color);
    width: 20px;
}

.lesson span:first-of-type {
    flex: 1;
    color: var(--text-color);
}

.lesson-duration {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 授课老师样式 */
.instructor-section h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.instructor-profile {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 40px;
    align-items: start;
}

.instructor-avatar {
    text-align: center;
}

.instructor-avatar img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid #f8f9fa;
}

.instructor-info h3 {
    font-size: 1.8rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.instructor-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.instructor-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 25px;
}

.stat {
    text-align: center;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

.instructor-bio {
    margin-bottom: 25px;
}

.instructor-bio p {
    line-height: 1.7;
    color: var(--text-light);
}

.instructor-expertise h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

/* 学员评价样式 */
.reviews-section h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.reviews-summary {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 50px;
    margin-bottom: 40px;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 10px;
}

.overall-rating {
    text-align: center;
}

.rating-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.rating-count {
    color: var(--text-light);
}

.rating-distribution {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.distribution-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.star-label {
    width: 40px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.distribution-bar {
    flex: 1;
    height: 8px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
}

.distribution-fill {
    height: 100%;
    background: #f1c40f;
    border-radius: 4px;
}

.distribution-percent {
    width: 40px;
    text-align: right;
    color: var(--text-light);
    font-size: 0.9rem;
}

.reviews-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 30px;
}

.review-item {
    display: flex;
    gap: 20px;
    padding: 25px;
    border: 1px solid #e9ecef;
    border-radius: 10px;
}

.reviewer-avatar {
    flex-shrink: 0;
}

.reviewer-avatar img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.review-content {
    flex: 1;
}

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.review-header h4 {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin: 0;
}

.review-date {
    color: var(--text-light);
    font-size: 0.9rem;
}

.review-text {
    line-height: 1.6;
    color: var(--text-color);
    margin-bottom: 15px;
}

.review-helpful {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.helpful-btn {
    background: none;
    border: 1px solid #ddd;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
}

.helpful-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.load-more-reviews {
    text-align: center;
}

/* 侧边栏样式 */
.sidebar {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 0;
    border-bottom: 1px solid #f8f9fa;
}

.feature-item:last-child {
    border-bottom: none;
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    width: 30px;
}

.feature-title {
    display: block;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 3px;
}

.feature-desc {
    display: block;
    font-size: 0.9rem;
    color: var(--text-light);
}

.related-course-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.related-course {
    display: flex;
    gap: 15px;
    padding: 15px;
    border: 1px solid #f8f9fa;
    border-radius: 8px;
    transition: var(--transition);
}

.related-course:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.course-thumb {
    flex-shrink: 0;
}

.course-thumb img {
    width: 80px;
    height: 60px;
    border-radius: 6px;
    object-fit: cover;
}

.course-info h4 {
    font-size: 0.95rem;
    margin-bottom: 8px;
    color: var(--dark-color);
    line-height: 1.3;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.course-meta .price {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1rem;
}

.course-meta .rating {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.course-meta .rating i {
    color: #f1c40f;
    font-size: 0.8rem;
}

.support-widget p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.5;
}

.support-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* 课程行动号召 */
.course-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #2c3e50 100%);
    color: var(--white);
}

.cta-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.cta-text h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.cta-text p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.cta-actions {
    display: flex;
    gap: 20px;
}

/* 新闻详情页面专用样式 */
.news-detail {
    padding: 60px 0;
    background: var(--white);
}

/* 新闻内容 */
.news-content {
    background: var(--white);
    border-radius: 10px;
}

.news-article {
    margin-bottom: 60px;
}

.article-header {
    margin-bottom: 30px;
}

.article-title {
    font-size: 2.5rem;
    line-height: 1.3;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.article-excerpt {
    font-size: 1.2rem;
    line-height: 1.6;
    color: var(--text-light);
}

.article-featured-image {
    margin-bottom: 30px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.article-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

.image-caption {
    padding: 10px 15px;
    background: #f8f9fa;
    color: var(--text-light);
    font-size: 0.9rem;
    text-align: center;
    font-style: italic;
}

.article-body {
    line-height: 1.8;
    color: var(--text-color);
}

.article-body h2 {
    font-size: 1.8rem;
    margin: 40px 0 20px;
    color: var(--dark-color);
    position: relative;
    padding-bottom: 10px;
}

.article-body h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--primary-color);
}

.article-body p {
    margin-bottom: 20px;
}

.article-highlight {
    background: #f8f9fa;
    border-left: 4px solid var(--primary-color);
    padding: 30px;
    margin: 30px 0;
    border-radius: 0 8px 8px 0;
    position: relative;
}

.article-highlight i.fa-quote-left {
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.3;
    position: absolute;
    top: 20px;
    left: 20px;
}

.article-highlight p {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--dark-color);
    margin-bottom: 15px;
    padding-left: 30px;
}

.quote-author {
    color: var(--text-light);
    font-size: 0.9rem;
    padding-left: 30px;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin: 30px 0;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-top: 5px;
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.feature-item p {
    color: var(--text-light);
    margin: 0;
}

.article-gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 30px 0;
}

.gallery-item {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin: 40px 0 30px;
    padding-top: 30px;
    border-top: 1px solid #e9ecef;
}

.tag-label {
    color: var(--text-light);
    font-weight: 600;
}

/* 新闻导航 */
.news-navigation {
    display: flex;
    justify-content: space-between;
    margin-bottom: 60px;
    padding: 30px 0;
    border-top: 1px solid #e9ecef;
    border-bottom: 1px solid #e9ecef;
}

.nav-prev,
.nav-next {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 20px;
    border-radius: 8px;
    transition: var(--transition);
    max-width: 45%;
}

.nav-prev {
    align-items: flex-start;
    text-align: left;
}

.nav-next {
    align-items: flex-end;
    text-align: right;
}

.nav-prev:hover,
.nav-next:hover {
    background: #f8f9fa;
}

.nav-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

.nav-title {
    font-weight: 600;
    color: var(--dark-color);
    line-height: 1.4;
}

/* 相关新闻 */
.related-news {
    margin-bottom: 60px;
}

.related-news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.related-news-item {
    display: flex;
    flex-direction: column;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.related-news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.related-image {
    height: 180px;
    overflow: hidden;
}

.related-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.related-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.related-content .news-category {
    align-self: flex-start;
    margin-bottom: 10px;
}

.related-content h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    line-height: 1.4;
}

.related-content h4 a {
    color: var(--dark-color);
    transition: var(--transition);
}

.related-content h4 a:hover {
    color: var(--primary-color);
}

.related-content p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 15px;
    flex: 1;
}

.related-meta {
    display: flex;
    justify-content: space-between;
    color: var(--text-light);
    font-size: 0.8rem;
}

/* 评论区 */
.comments-section {
    margin-bottom: 60px;
}

.comments-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e9ecef;
}

.comments-count {
    color: var(--primary-color);
    font-weight: 600;
}

.comment-form {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 40px;
}

.form-actions {
    text-align: right;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 30px;
}

.comment-item {
    display: flex;
    gap: 20px;
    padding: 25px;
    border: 1px solid #e9ecef;
    border-radius: 10px;
    transition: var(--transition);
}

.comment-item:hover {
    border-color: var(--primary-color);
}

.comment-avatar {
    flex-shrink: 0;
}

.comment-avatar img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.comment-content {
    flex: 1;
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.comment-header h4 {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin: 0;
}

.comment-date {
    color: var(--text-light);
    font-size: 0.9rem;
}

.comment-text {
    line-height: 1.6;
    color: var(--text-color);
    margin-bottom: 15px;
}

.comment-actions {
    display: flex;
    gap: 15px;
}

.comment-actions .action-btn {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.load-more-comments {
    text-align: center;
}

/* 作者信息 */
.author-info {
    text-align: center;
}

.author-avatar {
    margin-bottom: 20px;
}

.author-avatar img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #f8f9fa;
}

.author-details h4 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.author-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.author-bio {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.9rem;
}

/* 师资团队详情页面专用样式 */
.teacher-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 100px 0 60px;
    margin-top: 70px;
}

.teacher-hero {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.teacher-basic-info .teacher-category {
    display: inline-block;
    padding: 6px 15px;
    background: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.teacher-basic-info h1 {
    font-size: 2.8rem;
    margin-bottom: 5px;
    color: var(--dark-color);
    line-height: 1.2;
}

.teacher-title {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    font-weight: 600;
}

.teacher-description {
    margin-bottom: 30px;
}

.teacher-description p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-color);
}

.teacher-expertise h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

/* 教师档案卡片 */
.teacher-profile {
    position: sticky;
    top: 100px;
}

.profile-card {
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    text-align: center;
}

.teacher-avatar {
    position: relative;
    padding: 30px 30px 20px;
}

.teacher-avatar img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid #f8f9fa;
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    padding: 0 30px 20px;
    border-bottom: 1px solid #e9ecef;
}

.profile-actions {
    padding: 25px 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.btn-consult,
.btn-follow {
    padding: 12px;
    font-weight: 600;
}

.contact-info {
    padding: 20px 30px;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-item i {
    color: var(--primary-color);
    width: 16px;
}

/* 教师详情内容 */
.teacher-content {
    /* padding: 80px 0; */
    background: var(--white);
}


/* 教师介绍样式 */
.about-section h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.about-section>p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-light);
    margin-bottom: 40px;
}

.education-section,
.experience-section,
.publications-section {
    margin-bottom: 50px;
}

.education-section h3,
.experience-section h3,
.publications-section h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--dark-color);
    position: relative;
    padding-bottom: 10px;
}

.education-section h3::after,
.experience-section h3::after,
.publications-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary-color);
}

.education-timeline,
.experience-timeline {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.education-item,
.experience-item {
    display: flex;
    gap: 30px;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: var(--transition);
}

.education-item:hover,
.experience-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.edu-year,
.exp-period {
    flex-shrink: 0;
    width: 120px;
    font-weight: 600;
    color: var(--primary-color);
}

.edu-content h4,
.exp-content h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.edu-degree,
.exp-position {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 8px;
}

.edu-desc,
.exp-desc {
    color: var(--text-light);
    line-height: 1.6;
}

.publications-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.publication-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: var(--transition);
}

.publication-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.pub-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 5px;
}

.pub-content h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.pub-content p {
    color: var(--text-light);
    line-height: 1.5;
}

/* 主讲课程样式 */
.courses-section h2 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.courses-section>p {
    color: var(--text-light);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.course-card.featured {
    border: 2px solid var(--primary-color);
}

/* 教学特色样式 */
.teaching-section h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.teaching-philosophy {
    margin-bottom: 50px;
}

.teaching-philosophy h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--dark-color);
}

.quote {
    background: #f8f9fa;
    border-left: 4px solid var(--primary-color);
    padding: 30px;
    border-radius: 0 8px 8px 0;
    position: relative;
}

.quote i.fa-quote-left {
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.3;
    position: absolute;
    top: 20px;
    left: 20px;
}

.quote p {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--dark-color);
    margin-bottom: 15px;
    padding-left: 30px;
    line-height: 1.6;
}

.quote-author {
    color: var(--text-light);
    font-size: 0.9rem;
    padding-left: 30px;
}

.teaching-methods h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--dark-color);
}

.methods-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.method-item {
    padding: 25px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: var(--transition);
}

.method-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.method-item h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.method-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 教学成果样式 */
.achievements-section h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.achievements-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.stat-card {
    text-align: center;
    padding: 30px 20px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.stat-content h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-content p {
    color: var(--text-light);
    font-weight: 600;
}

.student-success {
    margin-bottom: 50px;
}

.student-success h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--dark-color);
}

.success-stories {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.story-card {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: var(--transition);
}

.story-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.student-avatar {
    flex-shrink: 0;
}

.student-avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}

.story-content h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.story-content p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 15px;
}

.story-meta {
    display: flex;
    gap: 20px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.course {
    color: var(--primary-color);
    font-weight: 600;
}

.awards-section h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--dark-color);
}

.awards-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.award-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: var(--transition);
}

.award-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.award-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 5px;
}

.award-content h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.award-content p {
    color: var(--text-light);
    line-height: 1.5;
    margin-bottom: 8px;
}

.award-year {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.review-course {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
}

/* 快速联系 */
.contact-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 相关教师 */
.related-teacher-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.related-teacher {
    display: flex;
    gap: 15px;
    padding: 15px;
    border: 1px solid #f8f9fa;
    border-radius: 8px;
    transition: var(--transition);
}

.related-teacher:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.teacher-thumb {
    flex-shrink: 0;
}

.teacher-thumb img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.teacher-info h4 {
    font-size: 1rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.teacher-info p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.teacher-meta {
    display: flex;
    gap: 15px;
    font-size: 0.8rem;
    color: var(--text-light);
}

.teacher-meta .rating {
    color: #f1c40f;
    font-weight: 600;
}

/* 教学荣誉 */
.honors-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.honor-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    background: #f8f9fa;
    border-radius: 5px;
    transition: var(--transition);
}

.honor-item:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateX(5px);
}

.honor-item i {
    color: var(--primary-color);
    width: 20px;
}

.honor-item:hover i {
    color: var(--white);
}

/* 关注教师 */
.follow-widget p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.5;
    font-size: 0.9rem;
}

.follow-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* 教师行动号召 */
.teacher-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #2c3e50 100%);
    color: var(--white);
}

/* 响应式设计 */


@media screen and (min-width: 763px){
.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
}

@media screen and (max-width: 992px) {
    .banner {
        flex-direction: column;
        text-align: center;
        padding-top: 10rem;
    }

    .banner-content h1 {
        font-size: 2.8rem;
    }

    .about-content {
        flex-direction: column;
    }
    .sidebar-widget{
        padding: 0;
    }
    .contact-content {
        flex-direction: column;
    }

    .search-filter {
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        max-width: 100%;
    }

    .filter-options {
        justify-content: center;
    }

    .intro-content,
    .philosophy-content {
        flex-direction: column;
    }

    .mission-vision {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 30px;
    }
    .footer_dsp{
        display: none;
    }
    .breadcrumbs{
        display: none;
    }
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        padding-left: 80px;
        padding-right: 0;
        text-align: left;
    }

    .timeline-item:nth-child(odd) .timeline-date,
    .timeline-item:nth-child(even) .timeline-date {
        left: 0;
        right: auto;
    }

    .timeline-item:nth-child(odd) .timeline-content::after,
    .timeline-item:nth-child(even) .timeline-content::after {
        left: -20px;
        right: auto;
        border-color: transparent var(--white) transparent transparent;
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .appointment-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .appointment-features {
        justify-content: center;
    }
    .course-meta {
    flex-wrap: wrap;
}
    .form-row {
        grid-template-columns: 1fr;
    }

    .content-layout {
        grid-template-columns: 1fr;
        gap: 40px;
        display: block;
    }
    .container{
        width: 100%;
    }
    .course-content{
        padding: 0;
    }
    .sidebar {
        order: -1;
        position: static;
    }

    .course-hero {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .course-enrollment {
        position: static;
    }

    .teacher-hero {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .teacher-profile {
        position: static;
    }

    .course-meta {
        grid-template-columns: 1fr;
    }

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

    .instructor-profile {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .reviews-summary {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .cta-content {
        flex-direction: column;
        text-align: center;
    }

    .education-item,
    .experience-item {
        flex-direction: column;
        gap: 15px;
    }

    .edu-year,
    .exp-period {
        width: auto;
    }

    .news-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .news-sidebar {
        order: -1;
    }

    .featured-news-card {
        grid-template-columns: 1fr;
    }

    .featured-image {
        height: 250px;
    }

    .newsletter-content {
        flex-direction: column;
        text-align: center;
    }

    .newsletter-form {
        max-width: 100%;
    }
    .teacher-content{
        padding: 0;
    }
}

@media screen and (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow);
        padding: 20px 0;
    }

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

    .nav-link {
        margin: 15px 0;
        font-size: 1.2rem;
    }

    .banner-content h1 {
        font-size: 2.5rem;
    }

    .banner-buttons {
        flex-direction: column;
        align-items: center;
    }

    .stats {
        flex-direction: column;
        gap: 20px;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .page-header h1 {
        font-size: 2.5rem;
    }

    .categories-nav {
        gap: 10px;
    }

    .category-btn {
        padding: 8px 15px;
        font-size: 0.9rem;
    }

    .featured-courses-grid,
    .courses-grid,
    .paths-container,
    .reviews-slider {
        grid-template-columns: 1fr;
    }

    .course-actions {
        flex-direction: column;
    }

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

    .stats-grid,
    .features-grid,
    .achievements-slider,
    .reviews-container {
        grid-template-columns: 1fr;
    }

    .join-features {
        flex-direction: column;
        gap: 20px;
    }

    .news-item {
        grid-template-columns: 1fr;
    }

    .news-image {
        height: 200px;
    }

    .news-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .news-pagination {
        flex-wrap: wrap;
    }

    .contact-form {
        padding: 30px 25px;
    }

    .map-actions {
        flex-direction: column;
        align-items: center;
    }

    .location-cards {
        grid-template-columns: 1fr;
    }

    .appointment-features {
        flex-direction: column;
        gap: 20px;
    }

    .appointment-form {
        padding: 30px 25px;
    }

    .course-header {
        padding: 80px 0 40px;
    }

    .course-basic-info h1 {
        font-size: 2.2rem;
    }

    .course-subtitle {
        font-size: 1.1rem;
    }

    .tabs-header {
        flex-direction: column;
    }

    .tab-btn {
        padding: 15px 20px;
        border-bottom: 1px solid #e9ecef;
        border-left: 3px solid transparent;
    }

    .tab-btn.active {
        border-bottom: 1px solid #e9ecef;
        border-left-color: var(--primary-color);
    }

    .tab-panel {
        padding: 30px 25px;
    }

    .module-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .review-item {
        flex-direction: column;
        text-align: center;
    }

    .review-header {
        justify-content: center;
    }

    .review-helpful {
        justify-content: center;
    }

    .cta-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn-large {
        width: 100%;
    }

    .article-title {
        font-size: 2rem;
    }

    .article-gallery {
        grid-template-columns: 1fr;
    }

    .article-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .news-navigation {
        flex-direction: column;
        gap: 20px;
    }

    .nav-prev,
    .nav-next {
        max-width: 100%;
    }

    .comments-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .comment-item {
        flex-direction: column;
        text-align: center;
    }

    .comment-header {
        justify-content: center;
    }

    .related-news-grid {
        grid-template-columns: 1fr;
    }

    .teacher-header {
        padding: 80px 0 40px;
    }

    .teacher-basic-info h1 {
        font-size: 2.2rem;
    }

    .teacher-title {
        font-size: 1.1rem;
    }

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

    .story-card {
        flex-direction: column;
        text-align: center;
    }
}

@media screen and (max-width: 480px) {
    .banner-content h1 {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .course-cards,
    .teacher-cards,
    .news-cards {
        grid-template-columns: 1fr;
    }

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

    .page-header h1 {
        font-size: 2rem;
    }

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

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

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

    .stat-number {
        font-size: 2.5rem;
    }

    .filter-options {
        /*flex-direction: column;*/
    }

    .teacher-meta {
        gap: 20px;
        flex-wrap: wrap;
    }

    .reviewer-info {
        flex-direction: column;
        text-align: center;
    }

    .section-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .newsletter-content {
        padding: 25px;
    }

    .newsletter-form {
        flex-direction: column;
    }

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

    .section-header h2 {
        font-size: 1.8rem;
    }

    .map-content h3 {
        font-size: 1.4rem;
    }

    .map-content p {
        font-size: 1rem;
    }

    .course-basic-info h1 {
        font-size: 1.8rem;
    }

    .price {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .enrollment-actions {
        padding: 20px;
    }

    .audience-list {
        grid-template-columns: 1fr;
    }

    .instructor-stats {
        grid-template-columns: 1fr;
    }

    .expertise-tags {
        justify-content: center;
    }

    .article-title {
        font-size: 1.6rem;
    }

    .article-highlight {
        padding: 20px;
    }

    .article-highlight p {
        padding-left: 0;
    }

    .quote-author {
        padding-left: 0;
    }

    .feature-item {
        flex-direction: column;
        text-align: center;
    }

    .social-share {
        flex-wrap: wrap;
        justify-content: center;
    }

    .action-buttons {
        width: 100%;
        justify-content: center;
    }

    .teacher-basic-info h1 {
        font-size: 1.8rem;
    }

    .profile-actions {
        padding: 20px;
    }

    .achievements-stats {
        grid-template-columns: 1fr;
    }

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

    .methods-list {
        grid-template-columns: 1fr;
    }
}