/* 全局样式 */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --text-dark: #2d3748;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 
                 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--white);
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* 头部导航 */
.header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav a {
    color: var(--text-dark);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.3s;
}

.nav a:hover,
.nav a.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s;
}

/* Banner轮播 */
.hero-banner {
    position: relative;
    height: 600px;
    overflow: hidden;
}

.banner-slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.banner-slide.active {
    opacity: 1;
}

.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white);
    z-index: 10;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.banner-content h2 {
    font-size: 52px;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
}

.banner-content p {
    font-size: 24px;
    margin-bottom: 30px;
    animation: fadeInUp 1.2s ease;
}

.banner-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
    transform: translateY(-50%);
    z-index: 11;
}

.banner-prev,
.banner-next {
    background: rgba(255, 255, 255, 0.3);
    border: none;
    color: var(--white);
    font-size: 24px;
    padding: 15px 20px;
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s;
}

.banner-prev:hover,
.banner-next:hover {
    background: rgba(255, 255, 255, 0.6);
}

.banner-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 11;
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s;
}

.banner-dot.active {
    background: var(--white);
    width: 30px;
    border-radius: 6px;
}

/* 按钮样式 */
.btn-primary,
.btn-secondary,
.btn-link {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-link {
    background: none;
    color: var(--primary-color);
    padding: 0;
}

.btn-link:hover {
    color: var(--secondary-color);
}

/* 通用区块样式 */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 40px;
    text-align: center;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    color: var(--text-light);
    margin-bottom: 50px;
}

/* 优势区块 */
.advantages {
    background: var(--bg-light);
}

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

.advantage-card {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    text-align: center;
}

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

.advantage-icon {
    width: 100%;
    height: 200px;
    margin-bottom: 20px;
    border-radius: 8px;
    overflow: hidden;
}

.advantage-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.advantage-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.advantage-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 产品区块 */
.products-grid {
    display: grid;
    gap: 40px;
}

.product-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
}

.product-card:nth-child(even) {
    grid-template-columns: 1fr 1fr;
}

.product-card:nth-child(even) .product-image {
    order: 2;
}

.product-image {
    height: 100%;
    min-height: 350px;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-info h3 {
    font-size: 28px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.product-info > p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

.product-features {
    list-style: none;
    margin: 20px 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.product-features li {
    padding-left: 20px;
    position: relative;
    color: var(--text-dark);
}

.product-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

/* 解决方案区块 */
.solutions-preview {
    background: var(--bg-light);
}

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

.solution-item {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

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

.solution-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.solution-item h3 {
    padding: 20px 20px 10px;
    font-size: 22px;
}

.solution-item p {
    padding: 0 20px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.solution-item a {
    padding: 0 20px 20px;
    display: block;
    color: var(--primary-color);
    font-weight: 600;
}

.solution-item a:hover {
    color: var(--secondary-color);
}

/* 案例区块 */
.cases-slider {
    display: grid;
    gap: 30px;
}

.case-card {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 30px;
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.case-card:hover {
    box-shadow: var(--shadow-lg);
}

.case-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-content {
    padding: 40px;
}

.case-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 15px;
}

.case-content h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.case-content p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

/* 客户评价 */
.testimonials {
    background: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.testimonial-text {
    font-style: italic;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-author h4 {
    color: var(--text-dark);
    margin-bottom: 5px;
}

.testimonial-author p {
    color: var(--text-light);
    font-size: 14px;
}

/* 新闻区块 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.news-item {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

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

.news-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.news-info {
    padding: 25px;
}

.news-date {
    color: var(--text-light);
    font-size: 14px;
    display: block;
    margin-bottom: 10px;
}

.news-info h3 {
    font-size: 20px;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-info p {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.6;
}

.news-info a {
    color: var(--primary-color);
    font-weight: 600;
}

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

/* CTA区块 */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 合作伙伴 */
.partners {
    background: var(--bg-light);
}

.partners-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 30px;
    align-items: center;
}

.partner-logo {
    background: var(--white);
    padding: 30px;
    text-align: center;
    border-radius: 8px;
    box-shadow: var(--shadow);
    font-size: 18px;
    font-weight: 600;
    color: var(--text-light);
    transition: all 0.3s;
}

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

/* 页脚 */
.footer {
    background: #1a202c;
    color: #cbd5e0;
    padding: 60px 0 20px;
}

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

.footer-section h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 18px;
}

.footer-section p {
    line-height: 1.8;
    margin-bottom: 15px;
}

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

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

.footer-section ul li a {
    color: #cbd5e0;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.social-links a {
    padding: 8px 16px;
    background: #2d3748;
    border-radius: 6px;
    transition: all 0.3s;
}

.social-links a:hover {
    background: var(--primary-color);
    color: var(--white);
}

.contact-info li {
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: 20px;
    text-align: center;
    color: #718096;
}

.footer-bottom a {
    color: #cbd5e0;
}

.footer-bottom a:hover {
    color: var(--white);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
}

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

/* 内页Banner */
.page-banner {
    position: relative;
    height: 350px;
    overflow: hidden;
}

.page-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.6);
}

.page-banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white);
    z-index: 10;
}

.page-banner-content h1 {
    font-size: 48px;
    margin-bottom: 15px;
}

.page-banner-content p {
    font-size: 20px;
}

/* 产品页样式 */
.product-section {
    padding: 80px 0;
}

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

.product-section h2 {
    font-size: 36px;
    margin-bottom: 40px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.product-layout.reverse {
    grid-template-columns: 1fr 1fr;
}

.product-layout.reverse .product-image {
    order: 2;
}

.product-layout.reverse .product-info {
    order: 1;
}

.product-image-large {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.product-description .lead {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 30px;
}

.product-description h3 {
    font-size: 24px;
    margin: 30px 0 15px;
    color: var(--text-dark);
}

.feature-list {
    list-style: none;
    margin: 20px 0;
}

.feature-list li {
    padding: 12px 0;
    padding-left: 30px;
    position: relative;
    line-height: 1.8;
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 20px;
}

.feature-list strong {
    color: var(--text-dark);
}

/* 解决方案页样式 */
.solution-section {
    padding: 80px 0;
}

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

.solution-section h2 {
    font-size: 36px;
    margin-bottom: 40px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.solution-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.solution-layout.reverse .solution-image {
    order: 2;
}

.solution-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.solution-content .lead {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 30px;
}

.solution-content h3 {
    font-size: 24px;
    margin: 30px 0 20px;
    color: var(--text-dark);
}

.solution-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 25px 0;
}

.solution-card {
    background: var(--white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.solution-section.alt-bg .solution-card {
    background: var(--bg-light);
}

.solution-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.solution-card h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.solution-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

.value-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 25px 0;
}

.value-list li {
    padding: 10px 15px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 8px;
    color: var(--text-dark);
    font-weight: 500;
}

.more-solutions {
    background: var(--bg-light);
    padding: 80px 0;
}

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

.industry-item {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    text-align: center;
}

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

.industry-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.industry-item h3 {
    padding: 20px 20px 10px;
    font-size: 20px;
}

.industry-item p {
    padding: 0 20px 25px;
    color: var(--text-light);
}

/* 案例页样式 */
.cases-stats {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item h3 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-item p {
    font-size: 18px;
    opacity: 0.95;
}

.case-detail {
    padding: 80px 0;
}

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

.case-header {
    text-align: center;
    margin-bottom: 50px;
}

.case-header h2 {
    font-size: 36px;
    margin: 15px 0;
    color: var(--text-dark);
}

.case-subtitle {
    font-size: 18px;
    color: var(--text-light);
}

.case-content-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
}

.case-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.case-info h3 {
    font-size: 24px;
    margin: 30px 0 15px;
    color: var(--text-dark);
}

.case-info p {
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 20px;
}

.solution-points {
    list-style: none;
    margin: 20px 0;
}

.solution-points li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    line-height: 1.8;
}

.solution-points li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 24px;
    font-weight: 700;
}

.solution-points strong {
    color: var(--text-dark);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 25px 0;
}

.result-item {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    padding: 25px;
    border-radius: 10px;
    text-align: center;
}

.result-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.result-item p {
    font-size: 14px;
    color: var(--text-dark);
    font-weight: 500;
}

.customer-quote {
    background: var(--bg-light);
    padding: 25px;
    border-left: 4px solid var(--primary-color);
    border-radius: 8px;
    font-style: italic;
    color: var(--text-light);
    line-height: 1.8;
    margin-top: 30px;
}

.customer-quote cite {
    display: block;
    margin-top: 15px;
    font-style: normal;
    font-weight: 600;
    color: var(--text-dark);
}

.more-cases {
    padding: 80px 0;
    background: var(--bg-light);
}

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

.case-card-content {
    padding: 25px;
}

.case-card-content h3 {
    font-size: 20px;
    margin: 15px 0;
}

.case-card-content p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 15px;
}

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

.case-highlights span {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 600;
}

/* 新闻页样式 */
.news-main {
    padding: 60px 0;
    background: var(--bg-light);
}

.news-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.news-article {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.news-image {
    width: 100%;
    height: 400px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.news-article:hover .news-image img {
    transform: scale(1.05);
}

.news-content {
    padding: 30px;
}

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

.news-category {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 13px;
}

.news-content h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.news-excerpt {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.news-detail {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 2px solid var(--bg-light);
}

.news-detail p {
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 15px;
}

.news-detail ul {
    margin: 20px 0;
    padding-left: 25px;
}

.news-detail ul li {
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 10px;
}

.news-detail strong {
    color: var(--text-dark);
    font-weight: 600;
}

.news-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-widget {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 25px;
}

.sidebar-widget h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.popular-posts {
    list-style: none;
}

.popular-posts li {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--bg-light);
}

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

.popular-posts a {
    color: var(--text-dark);
    font-size: 15px;
    line-height: 1.6;
}

.popular-posts a:hover {
    color: var(--primary-color);
}

.categories {
    list-style: none;
}

.categories li {
    margin-bottom: 10px;
}

.categories a {
    display: block;
    padding: 10px 15px;
    background: var(--bg-light);
    border-radius: 6px;
    color: var(--text-dark);
    transition: all 0.3s;
}

.categories a:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.cta-widget {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.cta-widget h3,
.cta-widget p {
    color: var(--white);
}

.subscribe-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 15px;
}

.subscribe-form input {
    padding: 12px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
}

.subscribe-form button {
    background: var(--white);
    color: var(--primary-color);
    border: none;
    padding: 12px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.subscribe-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* 响应式设计 */
@media (max-width: 968px) {
    .product-layout,
    .solution-layout,
    .case-content-layout,
    .news-layout {
        grid-template-columns: 1fr !important;
    }
    
    .product-layout.reverse .product-image,
    .solution-layout.reverse .solution-image {
        order: 0;
    }
    
    .solution-cards,
    .results-grid,
    .value-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: var(--shadow);
    }
    
    .nav.active {
        display: block;
    }
    
    .nav ul {
        flex-direction: column;
        padding: 20px;
        gap: 10px;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .page-banner {
        height: 250px;
    }
    
    .page-banner-content h1 {
        font-size: 32px;
    }
    
    .page-banner-content p {
        font-size: 16px;
    }
    
    .banner-content h2 {
        font-size: 32px;
    }
    
    .banner-content p {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .product-card,
    .case-card {
        grid-template-columns: 1fr !important;
    }
    
    .product-card:nth-child(even) .product-image {
        order: 0;
    }
    
    .product-info {
        padding: 25px;
    }
    
    .product-features {
        grid-template-columns: 1fr;
    }
    
    .cta-content h2 {
        font-size: 28px;
    }
    
    .cta-content p {
        font-size: 16px;
    }
    
    .news-sidebar {
        position: static;
    }
}