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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

/* 导航栏样式 */
.header {
    background: linear-gradient(135deg, #28a745 0%, #17a2b8 100%);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

/* 移动端菜单按钮 */
.nav-toggle {
    background: transparent;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    display: none;
    z-index: 1001;
}

/* 导航链接 - 桌面版 */
.nav {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1rem;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-links a:hover, .nav-links a.active {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

/* 英雄区样式 */
.hero {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="1000" height="1000" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.4s both;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    min-width: 120px;
    backdrop-filter: blur(10px);
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    animation: fadeInUp 1s ease 0.6s both;
}

.btn-primary {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.6);
}

.btn-secondary {
    background: linear-gradient(135deg, #fd7e14 0%, #ffc107 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(253, 126, 20, 0.4);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(253, 126, 20, 0.6);
}

/* section通用样式 */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #28a745 0%, #17a2b8 100%);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #718096;
    max-width: 600px;
    margin: 0 auto;
}

/* 专业服务样式 */
.services {
    padding: 5rem 0;
    background-color: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-item {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: #667eea;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #17a2b8 0%, #343a40 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
    color: white;
}

.service-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2d3748;
}

.service-item p {
    color: #718096;
    line-height: 1.7;
}

/* 关于我们样式 */
.about {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1rem;
    color: #4a5568;
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #667eea;
}

.stat-label {
    color: #718096;
    font-size: 0.9rem;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 核心优势样式 */
.advantages {
    padding: 5rem 0;
    background-color: white;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.advantage-item {
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
    border-left: 4px solid #667eea;
}

.advantage-item:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
    font-size: 1.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.advantage-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: #2d3748;
}

.advantage-item p {
    color: #718096;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 成功案例样式 */
.cases {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.cases .section-title {
    color: white;
}

.cases .section-title::after {
    background: white;
}

.cases .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.case-item {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.case-image {
    height: 200px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
}

.case-content {
    padding: 1.5rem;
}

.case-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.case-content p {
    margin-bottom: 1rem;
    opacity: 0.9;
    font-size: 0.95rem;
}

.case-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    opacity: 0.8;
}

/* 常见问题样式 */
.faq {
    padding: 5rem 0;
    background-color: white;
}

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

.faq-item {
    margin-bottom: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background-color: #f8f9fa;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    color: #2d3748;
}

.faq-question:hover {
    background-color: #edf2f7;
}

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

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

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

.faq-answer p {
    padding: 1.5rem;
    color: #718096;
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

/* 行业资讯样式 */
.news {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.news-item {
    background-color: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

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

.news-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
}

.news-content {
    padding: 1.5rem;
}

.news-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.news-content h3 a {
    color: #2d3748;
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-content h3 a:hover {
    color: #667eea;
}

.news-content p {
    margin-bottom: 1rem;
    color: #718096;
    font-size: 0.95rem;
    line-height: 1.6;
}

.news-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: #a0aec0;
}

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

/* 联系我们样式 */
.contact {
    padding: 5rem 0;
    background-color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #667eea;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    flex-shrink: 0;
}

.contact-text h3 {
    margin-bottom: 0.5rem;
    color: #2d3748;
    font-size: 1.1rem;
}

.contact-text p {
    color: #718096;
    margin: 0;
}

.contact-form {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.contact-form h3 {
    margin-bottom: 1.5rem;
    color: #2d3748;
    font-size: 1.3rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #e2e8f0;
    border-radius: 5px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* 面包屑导航样式 */
.breadcrumb {
    background-color: #f8f9fa;
    padding: 1rem 0;
    border-bottom: 1px solid #e2e8f0;
}

.breadcrumb ol {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.breadcrumb li {
    font-size: 0.9rem;
    color: #718096;
}

.breadcrumb li a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb li a:hover {
    color: #764ba2;
}

.breadcrumb li.active {
    color: #2d3748;
    font-weight: 600;
}

.breadcrumb li::after {
    content: '/';
    margin-left: 0.5rem;
    color: #cbd5e0;
}

.breadcrumb li:last-child::after {
    display: none;
}

/* 博客页面样式 */
.blog {
    padding: 3rem 0;
    background-color: white;
}

.blog-content {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 2rem;
}

.blog-main .blog-title {
    margin-bottom: 2rem;
    color: #2d3748;
    font-size: 2rem;
}

.blog-post {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.blog-post:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-color: #667eea;
}

.blog-post-image {
    width: 150px;
    height: 100px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    flex-shrink: 0;
}

.blog-post-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.blog-post-content h3 a {
    color: #2d3748;
    text-decoration: none;
    transition: color 0.3s ease;
}

.blog-post-content h3 a:hover {
    color: #667eea;
}

.blog-post-content p {
    margin-bottom: 1rem;
    color: #718096;
    font-size: 0.95rem;
    line-height: 1.6;
}

.blog-post-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: #a0aec0;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.pagination a {
    padding: 0.5rem 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 5px;
    color: #718096;
    text-decoration: none;
    transition: all 0.3s ease;
}

.pagination a:hover, .pagination a.active {
    background-color: #667eea;
    color: white;
    border-color: #667eea;
}

/* 侧边栏样式 */
.blog-sidebar, .article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-widget {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.sidebar-widget h3 {
    margin-bottom: 1rem;
    color: #2d3748;
    font-size: 1.1rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.sidebar-widget h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.sidebar-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-list li {
    margin-bottom: 0.5rem;
}

.sidebar-list li a {
    color: #718096;
    text-decoration: none;
    transition: all 0.3s ease;
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid #e2e8f0;
}

.sidebar-list li a:hover {
    color: #667eea;
    padding-left: 0.5rem;
}

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

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tags-cloud a {
    padding: 0.3rem 0.8rem;
    background-color: white;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    color: #718096;
    text-decoration: none;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.tags-cloud a:hover {
    background-color: #667eea;
    color: white;
    border-color: #667eea;
}

/* 文章页面样式 */
.article {
    padding: 3rem 0;
    background-color: white;
}

.article-content {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 2rem;
}

.article-main .article-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #e2e8f0;
}

.article-main .article-header h1 {
    color: #2d3748;
    font-size: 2rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: #a0aec0;
}

.article-body {
    margin-bottom: 2rem;
}

.article-body h2 {
    color: #2d3748;
    margin: 2rem 0 1rem;
    font-size: 1.5rem;
    line-height: 1.3;
}

.article-body p {
    margin-bottom: 1rem;
    color: #4a5568;
    line-height: 1.7;
}

.article-body ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    color: #4a5568;
}

.article-body li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.article-image {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 2rem 0;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.article-image i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.image-caption {
    color: #718096;
    font-size: 0.9rem;
    text-align: center;
    margin: 0;
}

.article-share {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.article-share h3 {
    margin-bottom: 1rem;
    color: #2d3748;
    font-size: 1.1rem;
}

.share-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.share-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.share-btn.weixin {
    background-color: #07c160;
}

.share-btn.weibo {
    background-color: #e6162d;
}

.share-btn.qq {
    background-color: #12b7f5;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.article-comments {
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.article-comments h3 {
    margin-bottom: 1.5rem;
    color: #2d3748;
    font-size: 1.3rem;
}

.comment-form {
    margin-bottom: 2rem;
}

.comment-form h4 {
    margin-bottom: 1rem;
    color: #4a5568;
    font-size: 1.1rem;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.comment-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background-color: white;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.comment-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    flex-shrink: 0;
}

.comment-content .comment-header {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 0.5rem;
}

.comment-content .comment-header h5 {
    margin: 0;
    color: #2d3748;
    font-size: 1rem;
}

.comment-content .comment-header span {
    font-size: 0.85rem;
    color: #a0aec0;
}

.comment-content p {
    margin: 0;
    color: #4a5568;
    line-height: 1.6;
}

/* 页脚样式 */
.footer {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-info h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.footer-info p {
    margin-bottom: 1rem;
    opacity: 0.8;
    line-height: 1.6;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.footer-links h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-links ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    display: block;
    padding: 0.25rem 0;
}

.footer-links a:hover {
    color: white;
    padding-left: 0.5rem;
}

.footer-contact h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-contact ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-contact li {
    margin-bottom: 0.5rem;
    display: flex;
    gap: 0.5rem;
    align-items: center;
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: 0.9rem;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
/* 移动端响应式设计 */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    /* 移动端导航默认隐藏 */
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        padding: 1rem;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        display: none;
        z-index: 1000;
    }
    
    /* 激活状态显示 */
    .nav.active {
        display: block;
    }
    
    /* 移动端导航链接垂直排列 */
    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
        position: static;
        max-height: none;
        overflow: visible;
        background: transparent;
        box-shadow: none;
        padding: 0;
    }
    
    .header-contact {
        display: none;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-features {
        gap: 1rem;
    }
    
    .feature-item {
        min-width: 100px;
        padding: 0.5rem;
    }
    
    .services-grid,
    .advantages-grid,
    .cases-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content,
    .contact-content,
    .blog-content,
    .article-content {
        grid-template-columns: 1fr;
    }
    
    .blog-post {
        grid-template-columns: 1fr;
    }
    
    .blog-post-image {
        width: 100%;
        height: 150px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .service-item,
    .advantage-item,
    .case-item,
    .news-item {
        padding: 1.5rem;
    }
    
    .about-image .image-placeholder {
        height: 250px;
        font-size: 3rem;
    }
}