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

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

#backToTop {
    position: fixed;
    right: 20px;
    bottom: 20px;
    width: 30px;
    height: 30px;
    border-radius: 100%;
    background: #000;
    border: 0;
    color: #fff;
    font-size: 20px;
    line-height: 1;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 页面头部 */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo h1 {
    font-size: 24px;
    color: #2c3e50;
    font-weight: 700;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-size: 18px;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

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

nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #e74c3c;
}

/* 页面标题区域 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
    margin-bottom: 40px;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 首页英雄区域 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero p {
    font-size: 1.3rem;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    background-color: #e74c3c;
    color: white;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.btn:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
}

.btn-outline {
    display: inline-block;
    background-color: transparent;
    color: #e74c3c;
    border: 2px solid #e74c3c;
    padding: 10px 25px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-outline:hover {
    background-color: #e74c3c;
    color: white;
}

/* 首页宣传语区域 */
.slogan-section {
    padding: 80px 0;
    background-color: #fff;
}

.slogan-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.slogan-content h2 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

.slogan-content p {
    font-size: 1.2rem;
    color: #7f8c8d;
}

/* 首页新闻动态区域 */
.news-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.news-section h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 50px;
}

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

.news-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.news-item h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.news-item p {
    color: #7f8c8d;
    margin-bottom: 20px;
}

.read-more {
    color: #e74c3c;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

.read-more:hover {
    text-decoration: underline;
}

.read-more::after {
    content: "→";
    margin-left: 5px;
}

/* 首页业务范围区域 */
.services-section {
    padding: 80px 0;
    background-color: #fff;
}

.services-section h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 50px;
}

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

.service-item {
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    transition: all 0.3s;
}

.service-item:hover {
    background-color: #f8f9fa;
    transform: translateY(-5px);
}

.service-item i {
    color: #e74c3c;
    margin-bottom: 20px;
}

.service-item h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.service-item p {
    color: #7f8c8d;
}

/* 首页成功案例区域 */
.cases-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.cases-section h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 50px;
}

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

.case-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

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

.case-icon {
    width: 70px;
    height: 70px;
    background-color: #e74c3c;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.case-icon i {
    color: white;
    font-size: 1.8rem;
}

.case-item h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.case-item p {
    color: #7f8c8d;
    margin-bottom: 20px;
}

/* 首页人才发展区域 */
.careers-section {
    padding: 80px 0;
    background-color: #fff;
}

.careers-section h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 50px;
}

.careers-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.careers-content p {
    font-size: 1.2rem;
    color: #7f8c8d;
    margin-bottom: 40px;
}

.careers-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #e74c3c;
}

.stat-label {
    font-size: 1.1rem;
    color: #7f8c8d;
}

/* 关于我们页面样式 */
.about-content {
    margin-bottom: 60px;
}

.about-text h2 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin: 40px 0 20px;
}

.about-text p {
    color: #7f8c8d;
    margin-bottom: 20px;
    line-height: 1.8;
}

.timeline {
    position: relative;
    padding-left: 30px;
    margin: 30px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: #e74c3c;
}

.timeline-item {
    position: relative;
    margin-bottom: 30px;
}

.timeline-year {
    position: absolute;
    left: -70px;
    top: 0;
    width: 60px;
    height: 30px;
    background-color: #e74c3c;
    color: white;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.timeline-content h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.timeline-content p {
    color: #7f8c8d;
}

.culture-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.value-item {
    text-align: center;
    padding: 20px;
    border-radius: 10px;
    background-color: #f8f9fa;
    transition: all 0.3s;
}

.value-item:hover {
    background-color: #e74c3c;
    color: white;
}

.value-item:hover h3,
.value-item:hover p {
    color: white;
}

.about-sidebar .sidebar-widget {
    background-color: #fff;
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.about-sidebar .sidebar-widget h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f8f9fa;
}

.about-sidebar .sidebar-widget ul {
    list-style: none;
}

.about-sidebar .sidebar-widget ul li {
    padding: 10px 0;
    border-bottom: 1px solid #f8f9fa;
}

.about-sidebar .sidebar-widget ul li:last-child {
    border-bottom: none;
}

.about-sidebar .sidebar-widget ul li i {
    color: #e74c3c;
    margin-right: 10px;
}

.partners-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.partner-logo {
    background-color: #f8f9fa;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    font-weight: 600;
    color: #7f8c8d;
    transition: all 0.3s;
}

.partner-logo:hover {
    background-color: #e74c3c;
    color: white;
}

/* 新闻动态页面样式 */
.news-content {
    margin-bottom: 60px;
}

.news-article {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.article-image {
    height: 300px;
    background-color: #f8f9fa;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7f8c8d;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    color: #7f8c8d;
}

.article-meta span {
    display: flex;
    align-items: center;
}

.article-meta span i {
    margin-right: 5px;
}

.news-article h2 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

.news-article p {
    color: #7f8c8d;
    margin-bottom: 20px;
    line-height: 1.8;
}

.news-sidebar {
    margin-top: 3rem;
}

.news-sidebar .sidebar-widget {
    background-color: #fff;
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.news-sidebar .sidebar-widget h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f8f9fa;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tags a {
    background-color: #f8f9fa;
    color: #7f8c8d;
    padding: 5px 15px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.tags a:hover {
    background-color: #e74c3c;
    color: white;
}

.popular-item {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f8f9fa;
}

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

.placeholder-image-small {
    width: 60px;
    height: 60px;
    background-color: #f8f9fa;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7f8c8d;
    font-size: 0.8rem;
}

.popular-content h4 {
    font-size: 1rem;
    margin-bottom: 5px;
}

.popular-content h4 a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s;
}

.popular-content h4 a:hover {
    color: #e74c3c;
}

.popular-content span {
    font-size: 0.8rem;
    color: #7f8c8d;
}

.archive-list {
    list-style: none;
}

.archive-list li {
    padding: 10px 0;
    border-bottom: 1px solid #f8f9fa;
}

.archive-list li:last-child {
    border-bottom: none;
}

.archive-list li a {
    color: #7f8c8d;
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: color 0.3s;
}

.archive-list li a:hover {
    color: #e74c3c;
}

.archive-list li a i {
    margin-right: 10px;
    font-size: 0.8rem;
}

/* 业务范围页面样式 */
.services-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.services-intro h2 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

.services-intro p {
    font-size: 1.2rem;
    color: #7f8c8d;
    line-height: 1.8;
}

.service-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

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

.service-icon {
    width: 80px;
    height: 80px;
    background-color: #f8f9fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.service-icon i {
    color: #e74c3c;
    font-size: 2rem;
}

.service-card h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.service-card p {
    color: #7f8c8d;
    margin-bottom: 20px;
    min-height: 80px;
}

.service-list {
    list-style: none;
    text-align: left;
    margin: 20px 0;
}

.service-list li {
    padding: 5px 0;
    color: #7f8c8d;
    display: flex;
    align-items: center;
}

.service-list li i {
    color: #e74c3c;
    margin-right: 10px;
}

.service-process {
    background-color: #f8f9fa;
    padding: 80px 0;
    margin: 80px 0;
}

.service-process h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 50px;
}

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

.process-step {
    text-align: center;
    position: relative;
}

.process-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 40px;
    right: -15px;
    width: 30px;
    height: 30px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23e74c3c'%3E%3Cpath d='M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

.step-number {
    width: 80px;
    height: 80px;
    background-color: #e74c3c;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.process-step h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.process-step p {
    color: #7f8c8d;
}

/* 成功案例页面样式 */
.cases-filter {
    background-color: #fff;
    padding: 20px 0;
    margin-bottom: 40px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 80px;
    z-index: 999;
}

.cases-filter ul {
    display: flex;
    justify-content: center;
    list-style: none;
    flex-wrap: wrap;
    gap: 15px;
}

.cases-filter ul li a {
    display: block;
    padding: 8px 20px;
    background-color: #f8f9fa;
    color: #7f8c8d;
    text-decoration: none;
    border-radius: 20px;
    transition: all 0.3s;
}

.cases-filter ul li a:hover,
.cases-filter ul li a.active {
    background-color: #e74c3c;
    color: white;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.case-item {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

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

.case-image {
    height: 200px;
    background-color: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7f8c8d;
}

.case-category {
    display: inline-block;
    background-color: #e74c3c;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    margin: 20px 0 10px;
}

.case-item h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin: 0 20px 15px;
}

.case-item p {
    color: #7f8c8d;
    margin: 0 20px 20px;
}

.client-testimonials {
    background-color: #f8f9fa;
    padding: 80px 0;
}

.client-testimonials h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 50px;
}

.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.testimonial-content p {
    font-size: 1.2rem;
    font-style: italic;
    color: #7f8c8d;
    margin-bottom: 30px;
    line-height: 1.8;
}

.author-info h4 {
    color: #2c3e50;
    margin-bottom: 5px;
}

.author-info p {
    color: #7f8c8d;
    margin: 0;
    font-style: normal;
}

/* 人才发展页面样式 */
.careers-intro {
    text-align: center;
    margin-bottom: 60px;
}

.careers-intro h2 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

.careers-intro p {
    font-size: 1.2rem;
    color: #7f8c8d;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

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

.benefit-item {
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    background-color: #fff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

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

.benefit-icon {
    width: 70px;
    height: 70px;
    background-color: #f8f9fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.benefit-icon i {
    color: #e74c3c;
    font-size: 1.8rem;
}

.benefit-item h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.benefit-item p {
    color: #7f8c8d;
}

.current-openings {
    margin: 80px 0;
}

.current-openings h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 50px;
}

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

.job-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.job-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

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

.job-header h3 {
    font-size: 1.4rem;
    color: #2c3e50;
}

.job-location {
    background-color: #f8f9fa;
    color: #7f8c8d;
    padding: 3px 10px;
    border-radius: 10px;
    font-size: 0.9rem;
}

.job-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    color: #7f8c8d;
    font-size: 0.9rem;
}

.job-meta span {
    display: flex;
    align-items: center;
}

.job-meta span i {
    margin-right: 5px;
}

.job-item p {
    color: #7f8c8d;
    margin-bottom: 20px;
}

.campus-recruitment {
    margin: 80px 0;
}

.campus-recruitment h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

.campus-recruitment p {
    text-align: center;
    font-size: 1.2rem;
    color: #7f8c8d;
    max-width: 800px;
    margin: 0 auto 40px;
}

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

.program-item {
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    background-color: #f8f9fa;
}

.program-item h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.program-item p {
    color: #7f8c8d;
}

.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 80px 0;
    margin-top: 80px;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.3rem;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.cta-section .btn {
    background-color: white;
    color: #667eea;
}

.cta-section .btn:hover {
    background-color: #f8f9fa;
}

/* 联系我们页面样式 */
.contact-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-item i {
    color: #e74c3c;
    font-size: 1.5rem;
    margin-top: 5px;
}

.contact-item h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.contact-item p {
    color: #7f8c8d;
}

.department-contacts h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 50px;
}

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

.contact-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.contact-avatar {
    width: 80px;
    height: 80px;
    background-color: #f8f9fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: #7f8c8d;
    font-size: 2rem;
}

.contact-card h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.contact-card p {
    color: #7f8c8d;
    margin-bottom: 10px;
}

.contact-card a {
    color: #e74c3c;
    text-decoration: none;
    font-weight: 600;
}

.contact-card a:hover {
    text-decoration: underline;
}

.map-section {
    margin: 80px 0;
}

.map-section h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 30px;
}

.map-placeholder {
    height: 400px;
    background-color: #f8f9fa;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #7f8c8d;
}

.map-placeholder p {
    text-align: center;
    margin: 10px 0;
}

.map-placeholder p:first-child {
    font-size: 3rem;
}

/* 常见问题页面样式 */
.faq-search {
    max-width: 600px;
    margin: 0 auto 40px;
    position: relative;
}

.faq-search input {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #f8f9fa;
    border-radius: 30px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.faq-search input:focus {
    border-color: #e74c3c;
}

.faq-search button {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #7f8c8d;
    cursor: pointer;
    font-size: 1.2rem;
}

.faq-categories {
    margin-bottom: 40px;
}

.faq-categories ul {
    display: flex;
    justify-content: center;
    list-style: none;
    flex-wrap: wrap;
    gap: 15px;
}

.faq-categories ul li a {
    display: block;
    padding: 8px 20px;
    background-color: #f8f9fa;
    color: #7f8c8d;
    text-decoration: none;
    border-radius: 20px;
    transition: all 0.3s;
}

.faq-categories ul li a:hover,
.faq-categories ul li a.active {
    background-color: #e74c3c;
    color: white;
}

.faq-item {
    background-color: #fff;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.faq-question {
    padding: 20px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s;
}

.faq-question:hover {
    background-color: #f8f9fa;
}

.faq-question h3 {
    color: #2c3e50;
    font-size: 1.2rem;
    margin: 0;
}

.faq-question i {
    transition: transform 0.3s;
}

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

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s, padding 0.3s;
}

.faq-item.active .faq-answer {
    padding: 0 30px 30px;
    max-height: 1000px;
}

.faq-answer p,
.faq-answer ul,
.faq-answer ol {
    color: #7f8c8d;
    line-height: 1.8;
    margin-bottom: 15px;
}

.faq-answer ul,
.faq-answer ol {
    padding-left: 20px;
}

.faq-answer li {
    margin-bottom: 10px;
}

.faq-answer strong {
    color: #2c3e50;
}

.faq-cta {
    text-align: center;
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 60px;
    margin-top: 60px;
}

.faq-cta h2 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

.faq-cta p {
    font-size: 1.2rem;
    color: #7f8c8d;
    margin-bottom: 30px;
}

/* 产品中心页面样式 */
.products-filter {
    background-color: #fff;
    padding: 20px 0;
    margin-bottom: 40px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 80px;
    z-index: 999;
}

.products-filter ul {
    display: flex;
    justify-content: center;
    list-style: none;
    flex-wrap: wrap;
    gap: 15px;
}

.products-filter ul li a {
    display: block;
    padding: 8px 20px;
    background-color: #f8f9fa;
    color: #7f8c8d;
    text-decoration: none;
    border-radius: 20px;
    transition: all 0.3s;
}

.products-filter ul li a:hover,
.products-filter ul li a.active {
    background-color: #e74c3c;
    color: white;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.product-item {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

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

.product-image {
    height: 200px;
    background-color: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7f8c8d;
}

.product-category {
    display: inline-block;
    background-color: #e74c3c;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    margin: 20px 0 10px 20px;
}

.product-item h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin: 0 20px 15px;
}

.product-item p {
    color: #7f8c8d;
    margin: 0 20px 20px;
}

.product-meta {
    display: flex;
    gap: 20px;
    margin: 0 20px 20px;
    color: #7f8c8d;
    font-size: 0.9rem;
}

.product-meta span {
    display: flex;
    align-items: center;
}

.product-meta span i {
    margin-right: 5px;
}

.featured-products {
    background-color: #f8f9fa;
    padding: 80px 0;
}

.featured-products h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 50px;
}

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

.featured-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.featured-image {
    height: 250px;
    background-color: #f8f9fa;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7f8c8d;
    margin-bottom: 20px;
}

.featured-item h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.featured-item p {
    color: #7f8c8d;
    margin-bottom: 20px;
}

/* 服务中心页面样式 */
.support-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.support-intro h2 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

.support-intro p {
    font-size: 1.2rem;
    color: #7f8c8d;
    line-height: 1.8;
}

.support-services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.service-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

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

.service-icon {
    width: 80px;
    height: 80px;
    background-color: #f8f9fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.service-icon i {
    color: #e74c3c;
    font-size: 2rem;
}

.service-card h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.service-card p {
    color: #7f8c8d;
    margin-bottom: 20px;
    min-height: 60px;
}

.support-process {
    background-color: #f8f9fa;
    padding: 80px 0;
    margin: 80px 0;
    border-radius: 10px;
}

.support-process h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 50px;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.step-icon {
    width: 70px;
    height: 70px;
    background-color: #e74c3c;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.step-icon i {
    color: white;
    font-size: 1.8rem;
}

.process-step h3 {
    text-align: center;
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.process-step p {
    text-align: center;
    color: #7f8c8d;
}

.support-resources {
    margin: 80px 0;
}

.support-resources h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 50px;
}

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

.resource-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.resource-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.resource-icon {
    width: 70px;
    height: 70px;
    background-color: #f8f9fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.resource-icon i {
    color: #e74c3c;
    font-size: 1.8rem;
}

.resource-item h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.resource-item p {
    color: #7f8c8d;
    margin-bottom: 20px;
}

.resource-item a {
    color: #e74c3c;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.resource-item a:hover {
    color: #c0392b;
    text-decoration: underline;
}

.emergency-support {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 80px 0;
    border-radius: 10px;
}

.emergency-support h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.emergency-support p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.emergency-contact {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-size: 2rem;
    font-weight: 700;
}

/* 知识库页面样式 */
.knowledge-search {
    max-width: 600px;
    margin: 0 auto 40px;
    position: relative;
}

.knowledge-search input {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #f8f9fa;
    border-radius: 30px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.knowledge-search input:focus {
    border-color: #e74c3c;
}

.knowledge-search button {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #7f8c8d;
    cursor: pointer;
    font-size: 1.2rem;
}

.knowledge-categories {
    margin-bottom: 40px;
}

.knowledge-categories ul {
    display: flex;
    justify-content: center;
    list-style: none;
    flex-wrap: wrap;
    gap: 15px;
}

.knowledge-categories ul li a {
    display: block;
    padding: 8px 20px;
    background-color: #f8f9fa;
    color: #7f8c8d;
    text-decoration: none;
    border-radius: 20px;
    transition: all 0.3s;
}

.knowledge-categories ul li a:hover,
.knowledge-categories ul li a.active {
    background-color: #e74c3c;
    color: white;
}

.knowledge-articles {
    margin-bottom: 60px;
}

.article-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.article-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

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

.category {
    background-color: #e74c3c;
    color: white;
    padding: 3px 10px;
    border-radius: 10px;
    font-size: 0.8rem;
}

.date {
    color: #7f8c8d;
    display: flex;
    align-items: center;
    font-size: 0.9rem;
}

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

.article-item h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.article-item p {
    color: #7f8c8d;
    margin-bottom: 20px;
    line-height: 1.8;
}

.article-stats {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    color: #7f8c8d;
}

.article-stats span {
    display: flex;
    align-items: center;
}

.article-stats span i {
    margin-right: 5px;
}

.knowledge-contribution {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 80px 0;
    border-radius: 10px;
    margin-top: 80px;
}

.knowledge-contribution h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.knowledge-contribution p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.knowledge-contribution .btn {
    background-color: white;
    color: #667eea;
}

.knowledge-contribution .btn:hover {
    background-color: #f8f9fa;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #fff;
    color: #7f8c8d;
    text-decoration: none;
    border-radius: 50%;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.pagination a:hover,
.pagination a.active {
    background-color: #e74c3c;
    color: white;
}

/* 页面底部 */
footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 60px 0 30px;
    margin-top: 80px;
}

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

.footer-section h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    padding: 8px 0;
    float: left;
    width: 20%;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: #e74c3c;
}

.footer-section p {
    color: #bdc3c7;
    margin-bottom: 10px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 20px;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }

    nav ul li {
        margin: 5px 10px;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .about-content,
    .news-content {
        grid-template-columns: 1fr;
    }

    .careers-stats {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }

    .faq-categories ul,
    .knowledge-categories ul,
    .cases-filter ul,
    .products-filter ul {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 10px;
    }

    .faq-categories ul::-webkit-scrollbar,
    .knowledge-categories ul::-webkit-scrollbar,
    .cases-filter ul::-webkit-scrollbar,
    .products-filter ul::-webkit-scrollbar {
        height: 5px;
    }

    .faq-categories ul::-webkit-scrollbar-thumb,
    .knowledge-categories ul::-webkit-scrollbar-thumb,
    .cases-filter ul::-webkit-scrollbar-thumb,
    .products-filter ul::-webkit-scrollbar-thumb {
        background-color: #e74c3c;
        border-radius: 5px;
    }

    .process-steps,
    .benefits-grid,
    .campus-programs,
    .resources-grid,
    .service-process .process-steps {
        grid-template-columns: 1fr;
    }

    .emergency-contact {
        flex-direction: column;
        gap: 10px;
    }

    .faq-cta {
        padding: 40px 20px;
    }
}