/* 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: #f8f9fa;
}

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

/* 头部样式 */
header {
    background: linear-gradient(135deg, #2c3e50, #1a2a3a);
    color: white;
    padding: 15px 0;
    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;
    flex-wrap: wrap;
}

.logo h1 {
    font-size: 24px;
    font-weight: bold;
}

nav ul {
    display: flex;
    list-style: none;
    margin-top: 20px;
    margin-bottom: 10px;
}

nav ul li {
    margin-right: 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 18px;
}

nav ul li a:hover,
nav ul li a.active {
    background-color: rgba(255, 255, 255, 0.2);
}

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

/* 首页横幅 */
.hero {
    background: linear-gradient(rgba(44, 62, 80, 0.8), rgba(26, 42, 58, 0.9)), 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="%232c3e50"/><path d="M20,20 Q50,5 80,20 T80,80 Q50,95 20,80 T20,20" fill="none" stroke="%233498db" stroke-width="0.5"/></svg>');
    background-size: cover;
    color: white;
    text-align: center;
    padding: 100px 20px;
}

.hero h2 {
    font-size: 42px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    color: #fff;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 内页横幅 */
.about-hero,
.news-hero,
.products-hero,
.services-hero,
.knowledge-hero,
.cases-hero,
.faq-hero,
.contact-hero {
    background: linear-gradient(135deg, #3498db, #2c3e50);
    color: white;
    text-align: center;
    padding: 80px 20px;
}

.about-hero h2,
.news-hero h2,
.products-hero h2,
.services-hero h2,
.knowledge-hero h2,
.cases-hero h2,
.faq-hero h2,
.contact-hero h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.about-hero p,
.news-hero p,
.products-hero p,
.services-hero p,
.knowledge-hero p,
.cases-hero p,
.faq-hero p,
.contact-hero p {
    font-size: 18px;
    max-width: 800px;
    margin: 0 auto;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    background: linear-gradient(to right, #3498db, #2980b9);
    color: white;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.btn:hover {
    background: linear-gradient(to right, #2980b9, #3498db);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

/* 内容区块通用样式 */
section {
    padding: 80px 0;
}

section h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #2c3e50;
    position: relative;
}

section h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, #3498db, #2c3e50);
    margin: 15px auto;
    border-radius: 2px;
}

/* 公司简介 */
.intro {
    background-color: white;
}

.intro-content p {
    font-size: 18px;
    margin-bottom: 20px;
    text-align: center;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    color: #555;
}

/* 发展历程时间线 */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 40px auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    background: #3498db;
    left: 50%;
    margin-left: -2px;
}

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

.timeline-year {
    position: absolute;
    width: 80px;
    height: 80px;
    background: #2c3e50;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    left: 50%;
    margin-left: -40px;
    z-index: 1;
}

.timeline-content {
    width: 45%;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    position: absolute;
}

.timeline-item:nth-child(odd) .timeline-content {
    left: 0;
}

.timeline-item:nth-child(even) .timeline-content {
    right: 0;
}

/* 宣传文案 */
.slogan {
    background: linear-gradient(135deg, #3498db, #2c3e50);
    color: white;
}

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

.slogan-item {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.slogan-item:hover {
    transform: translateY(-10px);
}

.slogan-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

/* 新闻动态 */
.news {
    background-color: #f8f9fa;
}

.news-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

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

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

.news-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.date {
    color: #3498db;
    font-weight: bold;
    display: block;
}

/* 业务范围 */
.services {
    background: white;
}

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

.service-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.service-item:hover {
    border-color: #3498db;
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.15);
    transform: translateY(-5px);
}

.service-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #2c3e50;
}

/* 成功案例 */
.cases {
    background: linear-gradient(135deg, #f8f9fa, #eef2f7);
}

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

.case-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.case-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, #3498db, #2c3e50);
}

.case-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c3e50;
    padding-left: 15px;
}

/* 人才发展 */
.careers {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: white;
    text-align: center;
}

.careers-content p {
    font-size: 18px;
    margin-bottom: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.careers .btn {
    background: white;
    color: #2c3e50;
}

.careers .btn:hover {
    background: #f8f9fa;
}

/* 页脚 */
footer {
    background: #1a2a3a;
    color: #ddd;
    padding: 50px 0 20px;
}

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

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

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

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

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

.footer-section ul li a:hover {
    color: #3498db;
}

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

/* 关于我们页面 */
.about-content {
    background: white;
    padding: 60px 0;
}

.about-text h2 {
    color: #2c3e50;
    margin: 40px 0 20px;
    font-size: 28px;
}

.about-text p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: #555;
}

.about-text ul {
    margin: 20px 0 30px 20px;
}

.about-text ul li {
    margin-bottom: 10px;
    color: #555;
}

/* 新闻详情页面 */
.news-main {
    background: #f8f9fa;
    padding: 60px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.news-detail {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.news-detail h1 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 32px;
    line-height: 1.3;
}

.news-meta {
    color: #777;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.news-meta .date,
.news-meta .author {
    margin-right: 20px;
}

.news-content p {
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 16px;
    color: #444;
}

.sidebar-section {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.sidebar-section h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 22px;
}

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

.sidebar-list li {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.sidebar-list li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.sidebar-list li a {
    color: #555;
    text-decoration: none;
    transition: color 0.3s;
}

.sidebar-list li a:hover {
    color: #3498db;
}

.news-pagination {
    text-align: center;
    margin-top: 40px;
}

.page-link {
    display: inline-block;
    padding: 10px 15px;
    margin: 0 5px;
    background: white;
    color: #2c3e50;
    text-decoration: none;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.page-link.active,
.page-link:hover {
    background: #3498db;
    color: white;
}

/* 产品中心页面 */
.products-main {
    background: #f8f9fa;
    padding: 60px 0;
}

.category-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.tab-btn {
    background: white;
    border: 1px solid #ddd;
    padding: 12px 25px;
    margin: 5px;
    cursor: pointer;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.tab-btn.active,
.tab-btn:hover {
    background: #3498db;
    color: white;
    border-color: #3498db;
}

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

.product-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
}

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

.placeholder-icon {
    font-size: 18px;
    font-weight: bold;
    color: #777;
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 20px;
}

.product-desc {
    color: #777;
    margin-bottom: 20px;
    font-size: 14px;
}

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

.price {
    font-weight: bold;
    color: #e74c3c;
    font-size: 18px;
}

/* 服务中心页面 */
.services-content {
    background: #f8f9fa;
    padding: 60px 0;
}

.services-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
}

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

.services-intro p {
    font-size: 18px;
    color: #555;
    line-height: 1.8;
}

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

.service-icon {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-item h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 22px;
    text-align: center;
}

.service-item p {
    text-align: center;
    color: #777;
}

.process-steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-bottom: 60px;
}

.step {
    text-align: center;
    max-width: 200px;
}

.step-number {
    width: 50px;
    height: 50px;
    background: #3498db;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 20px;
    margin: 0 auto 20px;
}

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

.commitment-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.commitment-content ul {
    list-style: none;
}

.commitment-content ul li {
    padding: 15px 0;
    border-bottom: 1px solid #eee;
    color: #555;
}

.commitment-content ul li:last-child {
    border-bottom: none;
}

.commitment-content ul li strong {
    color: #2c3e50;
}

/* 知识库页面 */
.knowledge-main {
    background: #f8f9fa;
    padding: 60px 0;
}

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

.category-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.category-card:hover {
    transform: translateY(-10px);
}

.category-card h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 22px;
}

.category-card p {
    color: #777;
    margin-bottom: 20px;
}

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

.knowledge-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.knowledge-item h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 22px;
}

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

.date,
.category {
    background: #3498db;
    color: white;
    padding: 5px 10px;
    border-radius: 3px;
    font-size: 14px;
    margin-right: 10px;
}

.category {
    background: #2c3e50;
}

.knowledge-item p {
    color: #555;
    margin-bottom: 20px;
    line-height: 1.8;
}

.read-more {
    color: #3498db;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.read-more:hover {
    color: #2980b9;
}

.download-center {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

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

.download-item {
    display: flex;
    align-items: center;
}

.download-icon {
    width: 80px;
    height: 80px;
    background: #3498db;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
    border-radius: 10px;
    margin-right: 20px;
}

.download-info h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.download-info p {
    color: #777;
    margin-bottom: 15px;
}

.download-btn {
    display: inline-block;
    background: #2c3e50;
    color: white;
    padding: 8px 20px;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.download-btn:hover {
    background: #3498db;
}

/* 成功案例页面 */
.cases-filter {
    background: linear-gradient(135deg, #3498db, #2c3e50);
    color: white;
    padding: 60px 0;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 12px 25px;
    margin: 5px;
    cursor: pointer;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.filter-btn.active,
.filter-btn:hover {
    background: white;
    color: #2c3e50;
}

.cases-gallery {
    background: #f8f9fa;
    padding: 60px 0;
}

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

.case-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.case-card:hover {
    transform: translateY(-10px);
}

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

.case-info {
    padding: 20px;
}

.case-info h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 20px;
}

.location {
    color: #3498db;
    font-weight: bold;
    margin-bottom: 10px;
}

.description {
    color: #777;
    margin-bottom: 20px;
    font-size: 14px;
}

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

.year {
    color: #2c3e50;
    font-weight: bold;
}

.testimonials {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: white;
    padding: 80px 0;
    text-align: center;
}

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

.testimonial-content {
    font-size: 20px;
    font-style: italic;
    margin-bottom: 30px;
    line-height: 1.6;
}

.testimonial-author .name {
    font-weight: bold;
    font-size: 18px;
    margin-bottom: 5px;
}

.testimonial-author .position {
    color: rgba(255, 255, 255, 0.8);
}

/* 常见问题页面 */
.faq-main {
    background: #f8f9fa;
    padding: 60px 0;
}

.faq-accordion {
    max-width: 800px;
    margin: 0 auto 60px;
}

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

.faq-question {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #2c3e50;
    color: white;
}

.faq-question h3 {
    font-size: 18px;
    margin: 0;
}

.faq-toggle {
    font-size: 24px;
    font-weight: bold;
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 20px;
}

.faq-answer ul {
    padding-left: 20px;
    margin: 15px 0;
}

.faq-answer ul li {
    margin-bottom: 10px;
    color: #555;
}

.faq-contact {
    text-align: center;
    background: white;
    padding: 50px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.faq-contact h2 {
    color: #2c3e50;
    margin-bottom: 20px;
}

.faq-contact p {
    color: #777;
    margin-bottom: 30px;
    font-size: 18px;
}

/* 联系我们页面 */
.contact-main {
    background: #f8f9fa;
    padding: 60px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 60px;
}

.contact-info,
.department-contacts {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-info h2,
.department-contacts h2 {
    color: #2c3e50;
    margin-bottom: 30px;
    text-align: center;
}

.info-item {
    margin-bottom: 30px;
}

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

.info-item p {
    color: #555;
    margin-bottom: 5px;
}

.map-container h3 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.map-placeholder {
    height: 200px;
    background: #eee;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: #777;
}

.contact-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.contact-person {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
}

.contact-person h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 18px;
}

.contact-person p {
    color: #555;
    margin-bottom: 5px;
}

.contact-message {
    background: white;
    padding: 50px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.contact-message h2 {
    color: #2c3e50;
    margin-bottom: 20px;
}

.contact-message p {
    color: #555;
    margin-bottom: 15px;
    font-size: 18px;
}

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

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

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

    .hero h2 {
        font-size: 32px;
    }

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

    section {
        padding: 50px 0;
    }

    section h2 {
        font-size: 28px;
    }

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

    .timeline::before {
        left: 30px;
    }

    .timeline-year {
        left: 30px;
        margin-left: -40px;
    }

    .timeline-content {
        width: calc(100% - 80px);
        float: right !important;
        text-align: left !important;
    }

    .process-steps {
        flex-direction: column;
        align-items: center;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 60px 20px;
    }

    .hero h2 {
        font-size: 26px;
    }

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

    .news-list,
    .services-list,
    .cases-list,
    .slogan-content,
    .products-grid,
    .category-grid {
        grid-template-columns: 1fr;
    }

    .tab-btn,
    .filter-btn {
        padding: 10px 15px;
        font-size: 14px;
    }

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