/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* 头部样式 */
header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: all 0.3s ease;
}

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

.logo h1 {
    color: #e74c3c;
    font-size: 24px;
    transition: all 0.3s;
}

.logo h1:hover {
    transform: scale(1.05);
}

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

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

nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 600;
    font-size: 1.2rem;
    transition: color 0.3s, transform 0.3s;
    position: relative;
    padding: 5px 0;
}

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

nav ul li a:hover {
    transform: translateY(-2px);
}

nav ul li a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #e74c3c;
    transition: width 0.3s;
}

nav ul li a:hover:after,
nav ul li a.active:after {
    width: 100%;
}

/* 主要内容样式 */
main {
    min-height: calc(100vh - 200px);
}

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.9), rgba(231, 76, 60, 0.7)), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%23e74c3c"/></svg>');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 100px 0;
    animation: fadeIn 1s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-header h1 {
    font-size: 42px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-header p {
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* 首页横幅 */
.hero {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.6)), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%23e74c3c"/></svg>');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 150px 0;
    animation: fadeIn 1s ease;
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero p {
    font-size: 22px;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 14px 35px;
    background: #e74c3c;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    transition: all 0.4s;
    border: 2px solid #e74c3c;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
    position: relative;
    overflow: hidden;
}

.btn:hover {
    background: transparent;
    color: #e74c3c;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(231, 76, 60, 0.4);
}

.btn:active {
    transform: translateY(-1px);
}

.btn-large {
    padding: 18px 45px;
    font-size: 18px;
}

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

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

/* 公司介绍 */
.intro {
    padding: 100px 0;
    background: linear-gradient(to bottom, #f9f9f9, #ffffff);
}

.intro h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 40px;
    color: #e74c3c;
    position: relative;
}

.intro h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.intro-content {
    align-items: center;
}

.intro-text {
    flex: 2;
}

.intro-text p {
    margin-bottom: 25px;
    font-size: 18px;
    line-height: 1.8;
    color: #555;
}

.intro-stats {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.stat-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.stat-item h3 {
    font-size: 42px;
    color: #e74c3c;
    margin-bottom: 15px;
}

/* 关于我们页面 */
.about-content {
    padding: 100px 0;
}

.about-text h2 {
    color: #e74c3c;
    margin: 40px 0 20px;
    font-size: 32px;
}

.about-text p {
    margin-bottom: 25px;
    font-size: 17px;
    line-height: 1.9;
    color: #555;
}

.about-text ul {
    list-style: none;
    margin: 30px 0;
}

.about-text ul li {
    padding: 12px 0;
    border-bottom: 1px dashed #eee;
    position: relative;
    padding-left: 30px;
}

.about-text ul li:before {
    content: "•";
    color: #e74c3c;
    position: absolute;
    left: 0;
    top: 12px;
    font-size: 24px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.stat-card {
    text-align: center;
    padding: 40px 20px;
    background: #ffffff;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.stat-card h3 {
    font-size: 42px;
    color: #e74c3c;
    margin-bottom: 15px;
}

.team {
    padding: 100px 0;
    background: linear-gradient(to bottom, #ffffff, #f9f9f9);
}

.team h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 40px;
    color: #e74c3c;
    position: relative;
}

.team h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
}

.team-member {
    text-align: center;
    background: white;
    padding: 40px 20px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.team-member:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.member-avatar {
    font-size: 72px;
    margin-bottom: 25px;
    transition: all 0.3s;
}

.team-member:hover .member-avatar {
    transform: scale(1.1);
}

/* 新闻动态 */
.news {
    padding: 100px 0;
    background: linear-gradient(to bottom, #f9f9f9, #ffffff);
}

.news h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 40px;
    color: #e74c3c;
    position: relative;
}

.news h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.news-item {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 40px;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.news-item:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 0;
    background: #e74c3c;
    transition: height 0.4s;
}

.news-item:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.news-item:hover:before {
    height: 100%;
}

.news-item h3 {
    margin-bottom: 20px;
    color: #333;
    font-size: 22px;
    transition: color 0.3s;
}

.news-item:hover h3 {
    color: #e74c3c;
}

.date {
    color: #e74c3c;
    font-weight: bold;
    margin-bottom: 20px;
    display: block;
}

/* 新闻列表页面 */
.news-filter {
    margin-bottom: 40px;
    text-align: center;
}

.news-filter select {
    padding: 12px 25px;
    border: 2px solid #e74c3c;
    border-radius: 30px;
    font-size: 16px;
    background: white;
    color: #333;
    outline: none;
    transition: all 0.3s;
}

.news-filter select:hover {
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.2);
}

.news-list {
    padding: 50px 0;
}

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

.news-image {
    font-size: 64px;
    text-align: center;
    margin-bottom: 25px;
    color: #e74c3c;
}

.news-content .news-tag {
    display: inline-block;
    background: #e74c3c;
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    margin-bottom: 15px;
    font-weight: bold;
}

.read-more {
    color: #e74c3c;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    margin-top: 20px;
    position: relative;
    transition: all 0.3s;
}

.read-more:after {
    content: '→';
    margin-left: 5px;
    transition: all 0.3s;
}

.read-more:hover {
    letter-spacing: 1px;
}

.read-more:hover:after {
    transform: translateX(5px);
}

.pagination {
    text-align: center;
    margin-top: 60px;
}

.page-link {
    display: inline-block;
    padding: 12px 20px;
    margin: 0 5px;
    text-decoration: none;
    color: #333;
    border: 2px solid #ddd;
    border-radius: 8px;
    transition: all 0.3s;
}

.page-link.active,
.page-link:hover {
    background: #e74c3c;
    color: white;
    border-color: #e74c3c;
    transform: translateY(-3px);
}

/* 业务范围 */
.services {
    padding: 100px 0;
    background: linear-gradient(135deg, #f9f9f9, #ffffff);
}

.services h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 40px;
    color: #e74c3c;
    position: relative;
}

.services h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
}

.service-item {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 50px 30px;
    text-align: center;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.service-item:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.service-item:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: #e74c3c;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s;
}

.service-item:hover:before {
    transform: scaleX(1);
}

.icon {
    font-size: 64px;
    margin-bottom: 25px;
    color: #e74c3c;
    transition: all 0.3s;
}

.service-item:hover .icon {
    transform: scale(1.2);
}

.service-item h3 {
    margin-bottom: 20px;
    color: #333;
    font-size: 24px;
}

/* 业务详情页面 */
.services-detail {
    padding: 100px 0;
}

.service-category {
    margin-bottom: 80px;
}

.service-category h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
    color: #e74c3c;
    position: relative;
}

.service-category h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.service-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 40px;
    transition: all 0.4s;
    margin-bottom: 30px;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 64px;
    text-align: center;
    margin-bottom: 25px;
    color: #e74c3c;
}

.service-card h3 {
    text-align: center;
    margin-bottom: 20px;
    color: #e74c3c;
    font-size: 26px;
}

.service-card p {
    color: #666;
    margin-bottom: 25px;
    line-height: 1.8;
}

.service-card ul {
    list-style: none;
    margin: 30px 0;
}

.service-card ul li {
    padding: 12px 0;
    border-bottom: 1px dashed #eee;
    position: relative;
    padding-left: 30px;
}

.service-card ul li:before {
    content: "✓";
    color: #e74c3c;
    position: absolute;
    left: 0;
    top: 12px;
    font-weight: bold;
}

/* CTA区域 */
.cta-section {
    padding: 120px 0;
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.95), rgba(231, 76, 60, 0.85)), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%23333"/></svg>');
    color: white;
    text-align: center;
    background-size: cover;
}

.cta-section h2 {
    font-size: 42px;
    margin-bottom: 25px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.cta-section p {
    font-size: 22px;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* 成功案例 */
.cases {
    padding: 100px 0;
    background: linear-gradient(to bottom, #ffffff, #f9f9f9);
}

.cases h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 40px;
    color: #e74c3c;
    position: relative;
}

.cases h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.case-item {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 40px;
    border-left: 5px solid #e74c3c;
    transition: all 0.3s;
}

.case-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.case-item h3 {
    margin-bottom: 20px;
    color: #333;
    font-size: 22px;
}

.case-item p {
    color: #666;
    line-height: 1.8;
}

.careers {
    padding: 100px 0;
    background: linear-gradient(to bottom, #ffffff, #f9f9f9);
}

.careers h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 40px;
    color: #e74c3c;
    position: relative;
}

.careers .careers-content {
    text-align: center;
}

.careers .careers-content ul {
    list-style: none;
    margin-bottom: 20px;
}

.careers .careers-content li {
    margin-top: 15px;
}

/* 案例页面 */
.cases-filter {
    padding: 50px 0;
    background: linear-gradient(to bottom, #f9f9f9, #ffffff);
}

.filter-buttons {
    text-align: center;
}

.filter-btn {
    padding: 12px 25px;
    margin: 0 8px 15px;
    background: white;
    border: 2px solid #ddd;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background: #e74c3c;
    color: white;
    border-color: #e74c3c;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
}

.cases-gallery {
    padding: 100px 0;
}

.case-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.4s;
}

.case-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.case-image {
    height: 220px;
    background: linear-gradient(45deg, #f9f9f9, #eeeeee);
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-icon {
    font-size: 80px;
    color: #e74c3c;
}

.case-content {
    padding: 30px;
}

.case-category {
    display: inline-block;
    background: #e74c3c;
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    margin-bottom: 15px;
    font-weight: bold;
}

.case-content h3 {
    margin-bottom: 15px;
    font-size: 22px;
}

.case-desc {
    color: #666;
    margin-bottom: 25px;
    min-height: 70px;
    line-height: 1.7;
}

.case-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: 25px;
    padding: 20px 0;
    border-top: 1px dashed #eee;
    border-bottom: 1px dashed #eee;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-weight: bold;
    color: #e74c3c;
    font-size: 20px;
}

.stat-label {
    font-size: 13px;
    color: #999;
    margin-top: 5px;
}

/* 客户评价 */
.testimonials {
    padding: 100px 0;
    background: linear-gradient(135deg, #f9f9f9, #ffffff);
}

.testimonials h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 40px;
    color: #e74c3c;
    position: relative;
}

.testimonials h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.testimonial {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    position: relative;
    transition: all 0.3s;
}

.testimonial:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.testimonial-content {
    margin-bottom: 25px;
    font-style: italic;
    position: relative;
    line-height: 1.8;
    color: #555;
}

.testimonial-content:before {
    content: "" ";
 font-size: 80px;
    color: #e74c3c;
    position: absolute;
    left: -30px;
    top: -40px;
    opacity: 0.2;
    font-family: Georgia, serif;
}

.testimonial-author {
    display: flex;
    align-items: center;
    border-top: 1px solid #eee;
    padding-top: 20px;
}

.author-avatar {
    font-size: 50px;
    margin-right: 20px;
}

.author-info h4 {
    color: #333;
    margin-bottom: 5px;
}

.author-info p {
    color: #999;
    font-size: 14px;
}

/* 知识库 */
.knowledge-categories {
    padding: 100px 0;
    background: linear-gradient(to bottom, #ffffff, #f9f9f9);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.category-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 50px 30px;
    text-align: center;
    transition: all 0.4s;
}

.category-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.category-icon {
    font-size: 64px;
    margin-bottom: 25px;
    color: #e74c3c;
}

.category-card h3 {
    margin-bottom: 20px;
    color: #e74c3c;
    font-size: 24px;
}

.category-card p {
    color: #666;
    margin-bottom: 25px;
    line-height: 1.7;
}

.popular-articles {
    padding: 100px 0;
    background: linear-gradient(to bottom, #f9f9f9, #ffffff);
}

.popular-articles h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 40px;
    color: #e74c3c;
    position: relative;
}

.popular-articles h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
}

.article-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.4s;
}

.article-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.article-image {
    height: 180px;
    background: linear-gradient(45deg, #f9f9f9, #eeeeee);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    color: #e74c3c;
}

.article-content {
    padding: 30px;
}

.article-category {
    display: inline-block;
    background: #e74c3c;
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    margin-bottom: 15px;
    font-weight: bold;
}

.article-meta {
    color: #999;
    font-size: 14px;
    margin: 15px 0;
}

.article-content p {
    color: #666;
    line-height: 1.7;
}

/* FAQ预览 */
.faq-preview {
    padding: 100px 0;
    background: linear-gradient(to bottom, #ffffff, #f9f9f9);
}

.faq-preview h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 40px;
    color: #e74c3c;
    position: relative;
}

.faq-preview h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.faq-item {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 35px;
    transition: all 0.3s;
}

.faq-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.faq-item h3 {
    color: #e74c3c;
    margin-bottom: 20px;
    font-size: 20px;
}

.faq-item p {
    color: #666;
    line-height: 1.7;
}

/* 产品中心 */
.products-section {
    padding: 100px 0;
    background: linear-gradient(to bottom, #f9f9f9, #ffffff);
}

.products-filter {
    margin-bottom: 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

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

.products-section .filter-btn {
    padding: 10px 20px;
    margin: 0 5px 10px;
    background: white;
    border: 2px solid #ddd;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s;
}

.products-section .filter-btn.active,
.products-section .filter-btn:hover {
    background: #e74c3c;
    color: white;
    border-color: #e74c3c;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
}

.search-sort {
    display: flex;
    gap: 15px;
}

.search-sort input,
.search-sort select {
    padding: 12px 20px;
    border: 2px solid #ddd;
    border-radius: 30px;
    font-size: 16px;
    outline: none;
    transition: all 0.3s;
}

.search-sort input:focus,
.search-sort select:focus {
    border-color: #e74c3c;
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.2);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.product-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.4s;
}

.product-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.product-image {
    height: 220px;
    background: linear-gradient(45deg, #f9f9f9, #eeeeee);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-info {
    padding: 30px;
    text-align: center;
}

.product-info h3 {
    margin-bottom: 15px;
    color: #333;
    font-size: 22px;
}

.product-desc {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
    min-height: 60px;
}

.product-price {
    font-size: 24px;
    font-weight: bold;
    color: #e74c3c;
    margin-bottom: 15px;
}

.product-tags {
    margin-bottom: 20px;
}

.tag {
    display: inline-block;
    background: #e74c3c;
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

/* 联系我们 */
.contact-info {
    padding: 100px 0;
    background: linear-gradient(to bottom, #ffffff, #f9f9f9);
}

.contact-intro {
    text-align: center;
    margin-bottom: 60px;
}

.contact-intro h2 {
    font-size: 40px;
    color: #e74c3c;
    margin-bottom: 25px;
    position: relative;
}

.contact-intro h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.contact-intro p {
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.departments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.department-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 50px 30px;
    text-align: center;
    transition: all 0.4s;
}

.department-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.dept-icon {
    font-size: 64px;
    margin-bottom: 25px;
    color: #e74c3c;
}

.department-card h3 {
    margin-bottom: 20px;
    color: #e74c3c;
    font-size: 24px;
}

.department-card p {
    color: #666;
    margin-bottom: 25px;
    line-height: 1.7;
}

.contact-person {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 1px dashed #eee;
}

.contact-person p {
    margin-bottom: 10px;
}

.contact-person a {
    color: #e74c3c;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
}

.contact-person a:hover {
    text-decoration: underline;
    letter-spacing: 1px;
}

/* 联系表单 */
.contact-form-section {
    padding: 100px 0;
    background: linear-gradient(to bottom, #f9f9f9, #ffffff);
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 50px;
    border-radius: 15px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.form-container h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #e74c3c;
    font-size: 36px;
    position: relative;
}

.form-container h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.form-container p {
    text-align: center;
    color: #666;
    margin-bottom: 40px;
    font-size: 18px;
}

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

.contact-form label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
    color: #333;
    font-size: 16px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 10px;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    font-size: 16px;
    transition: all 0.3s;
    outline: none;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: #e74c3c;
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.2);
}

.contact-form button {
    width: 100%;
    margin-top: 20px;
    font-size: 18px;
    padding: 16px;
}

/* FAQ页面 */
.faq-section {
    padding: 100px 0;
    background: linear-gradient(to bottom, #ffffff, #f9f9f9);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-search {
    display: flex;
    margin-bottom: 40px;
    gap: 15px;
}

.faq-search input {
    flex: 1;
    padding: 15px 25px;
    border: 2px solid #ddd;
    border-radius: 30px;
    font-size: 16px;
    outline: none;
    transition: all 0.3s;
}

.faq-search input:focus {
    border-color: #e74c3c;
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.2);
}

.faq-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 40px;
    justify-content: center;
}

.category-btn {
    padding: 12px 25px;
    background: white;
    border: 2px solid #ddd;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.category-btn.active,
.category-btn:hover {
    background: #e74c3c;
    color: white;
    border-color: #e74c3c;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
}

.faq-list {
    margin-top: 40px;
}

.faq-item {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.faq-question:hover {
    background: #fff9f9;
}

.faq-question h3 {
    margin: 0;
    color: #333;
    font-size: 18px;
    line-height: 1.5;
}

.faq-toggle {
    font-size: 24px;
    font-weight: bold;
    color: #e74c3c;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(231, 76, 60, 0.1);
    transition: all 0.3s;
}

.faq-question:hover .faq-toggle {
    background: rgba(231, 76, 60, 0.2);
    transform: rotate(90deg);
}

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
}

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

.faq-answer p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.faq-answer ul {
    padding-left: 20px;
    margin: 20px 0;
}

.faq-answer ul li {
    margin-bottom: 10px;
    color: #666;
    line-height: 1.7;
}

/* 服务中心页面 */
.services-overview {
    padding: 100px 0;
    background: linear-gradient(to bottom, #ffffff, #f9f9f9);
}

.services-intro {
    text-align: center;
    margin-bottom: 60px;
}

.services-intro h2 {
    font-size: 40px;
    color: #e74c3c;
    margin-bottom: 25px;
    position: relative;
}

.services-intro h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.services-intro p {
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.services-overview .services-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.service-overview-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 40px 20px;
    text-align: center;
    transition: all 0.4s;
}

.service-overview-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.service-overview-card .service-icon {
    font-size: 64px;
    margin-bottom: 25px;
    color: #e74c3c;
}

.service-overview-card h3 {
    margin-bottom: 20px;
    color: #e74c3c;
    font-size: 24px;
}

.service-overview-card p {
    color: #666;
    line-height: 1.7;
}

.service-details {
    padding: 100px 0;
    background: linear-gradient(to bottom, #f9f9f9, #ffffff);
}

.service-details h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 40px;
    color: #e74c3c;
    position: relative;
}

.service-details h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #e74c3c;
    margin: 15px auto;
    border-radius: 2px;
}

.accordion-item {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    overflow: hidden;
    transition: all 0.3s;
}

.accordion-item:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.accordion-header {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.accordion-header:hover {
    background: #fff9f9;
}

.accordion-header h3 {
    margin: 0;
    color: #333;
    font-size: 22px;
}

.accordion-toggle {
    font-size: 28px;
    font-weight: bold;
    color: #e74c3c;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(231, 76, 60, 0.1);
    transition: all 0.3s;
}

.accordion-header:hover .accordion-toggle {
    background: rgba(231, 76, 60, 0.2);
    transform: rotate(90deg);
}

.accordion-content {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
}

.accordion-content.show {
    padding: 0 30px 30px;
    max-height: 1000px;
}

.accordion-content p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.accordion-content ul {
    padding-left: 20px;
    margin: 20px 0;
}

.accordion-content ul li {
    margin-bottom: 10px;
    color: #666;
    line-height: 1.7;
}

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

.price-card {
    background: #fff9f9;
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    border: 1px solid #f0e0e0;
}

.price-card h4 {
    color: #333;
    margin-bottom: 15px;
}

.price {
    font-size: 28px;
    font-weight: bold;
    color: #e74c3c;
    margin-bottom: 10px;
}

.price-card p {
    color: #666;
    font-size: 14px;
}

.booking-cta {
    padding: 120px 0;
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.95), rgba(231, 76, 60, 0.85)), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%23333"/></svg>');
    color: white;
    text-align: center;
    background-size: cover;
}

.booking-cta h2 {
    font-size: 42px;
    margin-bottom: 25px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.booking-cta p {
    font-size: 22px;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* 底部样式 */
footer {
    background: linear-gradient(135deg, #333, #222);
    color: white;
    padding: 70px 0 30px;
}

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

.footer-section h3 {
    margin-bottom: 25px;
    color: #e74c3c;
    font-size: 22px;
    position: relative;
    padding-bottom: 20px;
}

.footer-section h3:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: #e74c3c;
}

.footer-section ul {
    list-style: none;
    margin-top: 10px;
}

.footer-section ul li {
    margin-bottom: 15px;
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
}

.footer-section ul li a:hover {
    color: #e74c3c;
    transform: translateX(5px);
}

.footer-section p {
    color: #ccc;
    margin-bottom: 15px;
    line-height: 1.7;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #555;
    color: #999;
    font-size: 14px;
}

/* 文本对齐 */
.text-center {
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .intro-content {
        flex-direction: column;
    }

    .hero h2 {
        font-size: 40px;
    }

    .hero p {
        font-size: 20px;
    }

    .page-header h1 {
        font-size: 36px;
    }

    .page-header p {
        font-size: 18px;
    }

    .service-pricing {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        padding: 15px 0;
    }

    nav ul {
        margin-top: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }

    nav ul li {
        margin: 8px 10px;
    }

    .hero {
        padding: 100px 0;
    }

    .hero h2,
    .page-header h1 {
        font-size: 32px;
    }

    .hero p,
    .page-header p {
        font-size: 18px;
    }

    .intro,
    .services,
    .cases,
    .cases-gallery,
    .testimonials,
    .knowledge-categories,
    .popular-articles,
    .faq-preview,
    .contact-info,
    .contact-form-section,
    .faq-section,
    .products-section,
    .services-detail,
    .team,
    .about-content,
    .cta-section,
    .services-overview,
    .service-details,
    .booking-cta {
        padding: 60px 0;
    }

    .intro-content {
        gap: 30px;
    }

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

    .search-sort {
        flex-direction: column;
    }

    .faq-search {
        flex-direction: column;
    }

    .form-container {
        padding: 30px 20px;
    }

    .service-pricing {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }

    .hero h2,
    .page-header h1 {
        font-size: 28px;
    }

    .hero p,
    .page-header p {
        font-size: 16px;
    }

    .btn {
        padding: 12px 25px;
    }

    .btn-large {
        padding: 15px 30px;
        font-size: 16px;
    }

    .news-grid,
    .services-grid,
    .cases-grid,
    .team-grid,
    .category-grid,
    .articles-grid,
    .faq-grid,
    .testimonials-grid,
    .departments-grid,
    .products-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .stat-item,
    .stat-card,
    .service-item,
    .case-item,
    .testimonial,
    .category-card,
    .article-card,
    .faq-item,
    .department-card,
    .product-card,
    .service-overview-card,
    .accordion-item,
    .price-card {
        padding: 25px;
    }
}