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

:root {
    --primary-color: #1a56db;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

/* 导航栏 */
.navbar {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-cta .btn {
    font-size: 0.9rem;
    padding: 0.5rem 1.25rem;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--bg-light);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Hero区域 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 5rem 0;
}

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    max-width: 800px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    justify-content: center;
}

.hero-buttons .btn-secondary {
    background-color: var(--primary-color);
    border: 2px solid var(--primary-color);
    color: #fff;
}

.hero-buttons .btn-secondary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1100px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* 核心优势 */
.features {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 1.1rem;
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-item {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.feature-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.feature-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    opacity: 0.1;
    margin-bottom: 1rem;
}

.feature-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

/* 应用场景 */
.applications {
    padding: 5rem 0;
}

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

.application-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

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

.application-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.application-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.application-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 数据统计 */
.stats {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 客户评价 */
.testimonials {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

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

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
}

.testimonial-content {
    font-style: italic;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.author-info h4 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

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

/* 最新动态 */
.news {
    padding: 5rem 0;
}

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

.news-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.news-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.news-date {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.news-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.news-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* 合作伙伴 */
.partners {
    padding: 5rem 0;
    background-color: var(--bg-white);
}

.partners-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.partner-item {
    background: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    text-align: center;
    font-weight: 600;
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

/* CTA区域 */
.cta {
    padding: 5rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn-secondary {
    background-color: var(--primary-color);
    border: 2px solid var(--primary-color);
    color: #fff;
}

.cta-buttons .btn-secondary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
}

/* 页脚 */
.footer {
    background-color: #1f2937;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

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

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

.footer-section ul a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul a:hover {
    color: white;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0.35rem;
}

.footer-bottom p:last-child {
    margin-bottom: 0;
}

.footer-icp {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
}

.footer-icp:hover {
    color: rgba(255, 255, 255, 0.8);
}

.footer-app-download {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-weight: 500;
}

.footer-app-download:hover {
    color: #fff;
}

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.25rem;
    opacity: 0.95;
}

/* 产品页面 */
.products-overview {
    padding: 5rem 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.product-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.product-card.featured {
    border-top: 4px solid var(--primary-color);
}

.product-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.product-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.product-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.product-features {
    list-style: none;
    margin-bottom: 2rem;
}

.product-features li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.product-features li::before {
    content: "✓";
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 详细功能 */
.detailed-features {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.feature-block {
    margin-bottom: 4rem;
}

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

.feature-block-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-block-content > p {
    color: var(--text-light);
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.feature-list {
    display: grid;
    gap: 1.5rem;
}

.feature-list-item {
    display: flex;
    gap: 1rem;
    background: white;
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
}

.feature-check {
    font-size: 1.5rem;
    color: var(--secondary-color);
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

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

/* 技术规格 */
.tech-specs {
    padding: 5rem 0;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.spec-item {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
}

.spec-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.spec-item ul {
    list-style: none;
}

.spec-item ul li {
    padding: 0.5rem 0;
    color: var(--text-light);
    padding-left: 1.5rem;
    position: relative;
}

.spec-item ul li::before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 解决方案页面 */
.solution-detail {
    padding: 5rem 0;
}

.solution-detail.alt {
    background-color: var(--bg-light);
}

.solution-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.solution-icon {
    font-size: 4rem;
}

.solution-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.solution-header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

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

.solution-description h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.solution-description > p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.solution-feature {
    background: white;
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
}

.solution-feature .feature-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.solution-feature h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.solution-feature p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

.solution-scenarios {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.scenario-item {
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.9rem;
}

.solution-benefits {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 100px;
}

.solution-benefits h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.benefit-item {
    margin-bottom: 1.5rem;
}

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

.benefit-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    opacity: 0.2;
    margin-bottom: 0.5rem;
}

.benefit-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.benefit-item p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 成功案例 */
.case-studies {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.case-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.case-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.case-card p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

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

.tag {
    background: var(--bg-light);
    color: var(--text-light);
    padding: 0.25rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.85rem;
}

/* 关于我们页面 */
.company-intro {
    padding: 5rem 0;
}

.intro-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.intro-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.intro-text p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

.image-placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 3rem;
    border-radius: 1rem;
    text-align: center;
    color: white;
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.image-placeholder p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 使命愿景价值观 */
.mission-vision {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

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

.mv-card {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.mv-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.mv-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

/* 发展历程 */
.timeline {
    padding: 5rem 0;
}

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

.timeline-items::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

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

.timeline-year {
    width: 100px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    flex-shrink: 0;
    text-align: center;
}

.timeline-content {
    flex: 1;
    background: white;
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
}

.timeline-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

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

/* 核心团队 */
.team {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.team-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.team-avatar {
    margin-bottom: 1.5rem;
}

.avatar-placeholder {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin: 0 auto;
}

.team-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.team-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.team-bio {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 资质荣誉 */
.certifications {
    padding: 5rem 0;
}

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

.cert-item {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.cert-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.cert-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.cert-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.cert-item p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 企业文化 */
.culture {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.culture-item {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
}

.culture-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

/* 加入我们 */
.join-us {
    padding: 5rem 0;
}

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

.join-text p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.join-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-dark);
}

.benefit-icon {
    font-size: 1.5rem;
}

.join-cta {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
}

.join-cta h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.job-list {
    list-style: none;
    margin-bottom: 2rem;
}

.job-list li {
    padding: 0.75rem 0;
    color: var(--text-light);
    border-bottom: 1px solid var(--border-color);
}

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

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

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

    .section-title {
        font-size: 2rem;
    }

    .solution-content {
        grid-template-columns: 1fr;
    }

    .solution-benefits {
        position: static;
    }

    .intro-content {
        grid-template-columns: 1fr;
    }

    .join-content {
        grid-template-columns: 1fr;
    }

    .timeline-items::before {
        left: 25px;
    }

    .timeline-year {
        width: 50px;
        font-size: 1.2rem;
    }
}

@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .features-grid,
    .applications-grid,
    .products-grid,
    .specs-grid,
    .solution-features,
    .cases-grid,
    .mv-grid,
    .team-grid,
    .cert-grid,
    .culture-grid,
    .testimonials-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .page-header p {
        font-size: 1rem;
    }

    .cta h2 {
        font-size: 1.75rem;
    }

    .cta p {
        font-size: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }

    .cta-buttons .btn {
        width: 100%;
    }

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

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

    .hero {
        padding: 3rem 0;
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .features,
    .applications,
    .products-overview,
    .detailed-features,
    .tech-specs,
    .solution-detail,
    .case-studies,
    .company-intro,
    .mission-vision,
    .timeline,
    .team,
    .certifications,
    .culture,
    .join-us,
    .testimonials,
    .news {
        padding: 3rem 0;
    }

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

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

    .timeline-item {
        flex-direction: column;
        gap: 1rem;
    }

    .timeline-items::before {
        left: 15px;
    }

    .timeline-year {
        width: 30px;
        font-size: 1rem;
    }
}
/* 联系页面样式 */
.contact-section {
    padding: 5rem 0;
}

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

.contact-items {
    margin-bottom: 3rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.contact-details p {
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.contact-branches h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.branch-list {
    display: grid;
    gap: 1rem;
}

.branch-item {
    background: var(--bg-light);
    padding: 1rem;
    border-radius: 0.5rem;
}

.branch-item strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.branch-item p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
}

.contact-form-section {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-form button {
    margin-top: 1rem;
}

/* 地图区域 */
.map-section {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.map-placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 4rem;
    border-radius: 1rem;
    text-align: center;
    color: white;
}

.map-content {
    max-width: 600px;
    margin: 0 auto;
}

.map-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.map-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.map-content p {
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

/* 常见问题 */
.faq-section {
    padding: 5rem 0;
}

.faq-grid {
    display: grid;
    gap: 2rem;
}

.faq-item {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
}

.faq-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

/* 取证知识文档页 */
.doc-nav {
    padding: 1rem 0;
    background-color: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
}

.doc-nav-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1.5rem;
}

.doc-nav-label {
    font-weight: 600;
    color: var(--text-dark);
}

.doc-nav-inner a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.doc-nav-inner a:hover {
    text-decoration: underline;
}

.doc-section {
    padding: 4rem 0;
}

.doc-section.alt {
    background-color: var(--bg-light);
}

.doc-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--primary-color);
}

.doc-content {
    max-width: 800px;
}

.doc-content h3 {
    font-size: 1.25rem;
    margin: 2rem 0 0.75rem;
    color: var(--text-dark);
}

.doc-content p,
.doc-content ul {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.doc-content ul {
    padding-left: 1.5rem;
}

.doc-content li {
    margin-bottom: 0.5rem;
}

.doc-note {
    margin-top: 1.5rem;
    padding: 1rem 1.25rem;
    background: rgba(26, 86, 219, 0.08);
    border-left: 4px solid var(--primary-color);
    border-radius: 0 0.5rem 0.5rem 0;
    font-size: 0.95rem;
}

/* 首页：系统简介区块 */
.intro-block {
    padding: 4rem 0;
    background-color: var(--bg-white);
}

.intro-block .intro-text {
    max-width: 800px;
    margin: 0 auto;
}

.intro-block .intro-text p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

/* 首页：典型使用流程 */
.process-section {
    padding: 4rem 0;
    background-color: var(--bg-light);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.process-step {
    text-align: center;
    padding: 1.5rem 1rem;
    background: white;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
}

.process-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.process-step h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.process-step p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.5;
}

/* 首页：合规与标准 */
.compliance-block {
    padding: 4rem 0;
    background-color: var(--bg-white);
}

.compliance-block .compliance-text {
    max-width: 800px;
    margin: 0 auto 2rem;
}

.compliance-block .compliance-text p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.compliance-list {
    list-style: none;
    max-width: 600px;
    margin: 0 auto;
}

.compliance-list li {
    padding: 0.75rem 0 0.75rem 2rem;
    position: relative;
    color: var(--text-light);
    line-height: 1.6;
}

.compliance-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
}

.compliance-block .doc-link {
    display: inline-block;
    margin-top: 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}

.compliance-block .doc-link:hover {
    text-decoration: underline;
}

/* 首页：即将上线 */
.launch-notice {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.launch-notice h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.launch-notice p {
    font-size: 1.1rem;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto 1.5rem;
}

.launch-notice .btn-secondary {
    background-color: var(--primary-color);
    border: 2px solid var(--primary-color);
    color: #fff;
}

.launch-notice .btn-secondary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
}

/* 应用场景说明（解决方案页） */
.scenarios-desc {
    padding: 4rem 0;
    background-color: var(--bg-light);
}

.scenario-desc-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

.scenario-desc-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.scenario-desc-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* 联系页面响应式 */
@media (max-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .contact-item {
        flex-direction: column;
        gap: 1rem;
    }
    
    .map-placeholder {
        padding: 2rem;
    }
    
    .map-icon {
        font-size: 3rem;
    }
}