/* 首页样式 */
:root {
    --primary-color: #667eea;
    --primary-dark: #5a67d8;
    --secondary-color: #764ba2;
    --text-color: #333333;
    --text-light: #666666;
    --text-gray: #999999;
    --bg-white: #ffffff;
    --bg-gray: #f5f5f5;
    --bg-light: #f8f9fa;
    --success-color: #28a745;
    --error-color: #dc3545;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f0f2f5;
}

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

/* Header Styles */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    padding: 15px 0;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
}

.logo {
    height: 40px;
    margin-right: 10px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.navbar-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 5px;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
}

.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-color);
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    background: var(--bg-white);
    padding: 20px;
    box-shadow: var(--shadow-md);
}

.mobile-nav-link {
    display: block;
    padding: 10px 0;
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-link:hover {
    color: var(--primary-color);
}

.mobile-nav-link.active {
    color: var(--primary-color);
}

/* Hero Banner */
.hero-banner {
    position: relative;
    height: 25vh;
    min-height: 280px;
    max-height: 400px;
    overflow: hidden;
    margin-top: 0;
    margin-bottom: 60px;
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.hero-slide.active {
    display: block;
    opacity: 1;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    filter: brightness(0.7);
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--bg-white);
    z-index: 1;
    max-width: 800px;
    padding: 0 20px;
    background: none;
    border-radius: 0;
    animation: none;
}

.hero-content h1 {
    font-size: 2rem;
    margin-bottom: 12px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.cta-button {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary-color);
    color: var(--bg-white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Slider Controls */
.slider-prev,
.slider-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.8);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.5rem;
    transition: var(--transition);
    z-index: 10;
}

.slider-prev {
    left: 30px;
}

.slider-next {
    right: 30px;
}

.slider-prev:hover,
.slider-next:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
}

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

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

.dot.active {
    background: var(--bg-white);
    transform: scale(1.2);
}

/* Quick Navigation */
.quick-nav {
    margin-bottom: 60px;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--text-color);
}

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

.quick-nav-card {
    background: var(--bg-white);
    padding: 40px 30px;
    text-align: center;
    border-radius: 10px;
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

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

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.quick-nav-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.quick-nav-card p {
    color: var(--text-light);
    margin-bottom: 0;
}

/* Company Introduction */
.about-section {
    background: var(--bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 48px;
    align-items: start;
}

/* 左侧文字区域 */
.about-text h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 16px;
}

.about-desc {
    font-size: 0.95rem;
    line-height: 1.85;
    color: var(--text-light);
    text-align: justify;
}

.about-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 16px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: none;
    transition: gap 0.2s ease;
}

.about-link:hover {
    gap: 8px;
}

/* 右侧优势卡片 */
.about-advantages-card {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 24px;
}

.card-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 16px;
}

.card-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 18px;
    background: var(--primary-color);
    border-radius: 2px;
    flex-shrink: 0;
}

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

.card-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.88rem;
    color: #4b5563;
    line-height: 1.6;
}

.card-dot {
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 7px;
    opacity: 0.6;
}

.card-list strong {
    color: #111827;
    font-weight: 600;
}

.card-sep {
    color: #9ca3af;
    margin: 0 2px;
}

.card-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.card-btn {
    display: block;
    text-align: center;
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.card-btn-primary {
    background: var(--primary-color);
    color: #fff;
}

.card-btn-primary:hover {
    filter: brightness(1.1);
}

.card-btn-outline {
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.card-btn-outline:hover {
    background: var(--primary-color);
    color: #fff;
}

@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .about-text h2 {
        font-size: 1.25rem;
    }

    .card-actions {
        flex-direction: row;
    }

    .card-btn {
        flex: 1;
    }
}

/* Featured Products */
.featured-products {}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.view-all {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.view-all:hover {
    text-decoration: underline;
}

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

.product-card {
    background: var(--bg-white);
    border-radius: 10px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

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

.product-image {
    height: 250px;
    overflow: hidden;
    background: var(--bg-gray);
}

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

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-card h3 {
    padding: 20px 20px 10px;
    font-size: 1.3rem;
    color: var(--text-color);
}

.product-card p {
    padding: 0 20px 20px;
    color: var(--text-light);
    font-size: 1rem;
}

.product-link {
    display: block;
    padding: 0 20px 20px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.product-link:hover {
    text-decoration: underline;
}

/* Latest News */
.latest-news {
    margin-bottom: 60px;
}

.news-list {
    background: var(--bg-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.news-item {
    padding: 30px;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.news-item:last-child {
    border-bottom: none;
}

.news-item:hover {
    background: var(--bg-light);
}

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

.news-date {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.news-item h3 {
    margin-bottom: 15px;
}

.news-item h3 a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.news-item h3 a:hover {
    color: var(--primary-color);
}

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

/* Newsletter */
.newsletter {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-white);
    padding: 60px 0;
    margin-bottom: 60px;
    text-align: center;
}

.newsletter-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.newsletter-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    gap: 10px;
}

.newsletter-form input {
    flex: 1;
    padding: 15px 20px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    outline: none;
}

.newsletter-button {
    padding: 15px 30px;
    background: var(--bg-white);
    color: var(--primary-color);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.newsletter-message {
    margin-top: 20px;
    padding: 10px;
    border-radius: 5px;
    display: none;
}

.newsletter-message.success {
    background: rgba(40, 167, 69, 0.2);
    display: block;
}

.newsletter-message.error {
    background: rgba(220, 53, 69, 0.2);
    display: block;
}

/* CTA Section */
.cta-section {
    background: var(--bg-white);
    padding: 60px 0;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.cta-content p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button-large {
    display: inline-block;
    padding: 15px 40px;
    background: var(--primary-color);
    color: var(--bg-white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.cta-button-large:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Footer */
.footer {
    background: #2c3e50;
    color: var(--bg-white);
    padding: 60px 0 30px;

}

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

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

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--bg-white);
}

.footer-logo img {
    height: 40px;
    margin-bottom: 15px;
}

.company-description h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.company-description p {
    font-size: 0.9rem;
    line-height: 1.6;
    opacity: 0.8;
    margin-bottom: 10px;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--bg-white);
    text-decoration: underline;
}

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

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-icon {
    margin-right: 10px;
    font-size: 1.2rem;
}

.contact-text {
    font-size: 0.9rem;
    opacity: 0.8;
}

.qr-code-container {
    text-align: center;
}

.qr-code {
    width: 150px;
    height: 150px;
    margin-bottom: 10px;
    background: var(--bg-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
}

.qr-text {
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.copyright p {
    margin: 5px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
    }

    .navbar-toggle {
        display: block;
    }

    .mobile-menu {
        display: block;
    }

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

    .hero-content p {
        font-size: 1rem;
    }

    .quick-nav-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 20px;
    }

    .intro-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-button {
        width: 100%;
    }

    .slider-prev {
        left: 10px;
    }

    .slider-next {
        right: 10px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }

    .hero-content p {
        font-size: 0.95rem;
    }

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

    .intro-text h2,
    .newsletter-content h2,
    .cta-content h2 {
        font-size: 2rem;
    }
}

/* Homepage composition aligned with the shared public-site design system. */
:root { --primary-color: var(--brand); --primary-dark: var(--brand-dark); }
body { background: var(--surface); }
.container { width: min(100% - 48px, var(--page-width)); max-width: none; padding: 0; }
.header { background: rgba(255, 255, 255, 0.96); border-bottom: 1px solid var(--line); box-shadow: none; }

.hero-banner {
    height: min(680px, calc(100svh - 130px));
    min-height: 520px;
    max-height: 680px;
    margin: 0;
    background: #20302d;
}

.hero-bg {
    filter: none;
    background-position: center;
    animation: heroImageIn 900ms ease-out both;
}

.hero-bg::after {
    position: absolute;
    inset: 0;
    content: "";
    background: linear-gradient(90deg, rgba(12, 24, 22, 0.78) 0%, rgba(12, 24, 22, 0.5) 48%, rgba(12, 24, 22, 0.08) 78%);
}

.hero-content {
    top: 50%;
    left: max(24px, calc((100% - var(--page-width)) / 2));
    width: min(620px, calc(100% - 48px));
    max-width: 620px;
    padding: 0;
    transform: translateY(-50%);
    text-align: left;
    animation: heroCopyIn 650ms 120ms ease-out both;
}

.hero-brand {
    display: block;
    margin-bottom: 18px;
    color: #a9e5df;
    font-size: 15px;
    font-weight: 700;
}

.hero-content h1 {
    max-width: 620px;
    margin: 0 0 20px;
    color: #fff;
    font-size: 48px;
    font-weight: 720;
    line-height: 1.18;
    text-shadow: none;
}

.hero-content p {
    display: -webkit-box;
    max-width: 580px;
    margin: 0 0 30px;
    overflow: hidden;
    color: rgba(255, 255, 255, 0.84);
    font-size: 18px;
    line-height: 1.8;
    text-shadow: none;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.hero-content .cta-button {
    min-width: 128px;
    text-align: center;
}

.slider-prev,
.slider-next {
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: rgba(20, 36, 33, 0.48);
    color: #fff;
    box-shadow: none;
}

.slider-prev:hover,
.slider-next:hover { background: rgba(20, 36, 33, 0.82); box-shadow: none; }
.dot { width: 28px; height: 3px; border: 0; border-radius: 0; }
.dot.active { transform: none; }

.about-section,
.featured-products,
.featured-solutions,
.latest-news,
.faq-section {
    padding: 56px 0;
    margin: 0;
}

.featured-solutions,
.faq-section { background: var(--surface-soft); }

.about-content {
    grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
    gap: 80px;
    align-items: start;
}

.about-text h2 {
    margin: 0 0 24px;
    color: var(--ink);
    font-size: 38px;
    line-height: 1.3;
}

.about-desc {
    color: var(--muted);
    font-size: 16px;
    line-height: 1.9;
    text-align: left;
}

.about-link { margin-top: 24px; color: var(--brand-dark); font-size: 15px; }
.about-advantages-card {
    padding: 6px 0 6px 28px;
    border: 0;
    border-left: 1px solid var(--line);
    border-radius: 0;
    background: transparent;
}

.card-title { margin-bottom: 22px; color: var(--ink); font-size: 16px; }
.card-title::before { width: 3px; height: 20px; background: var(--brand); }
.card-list li { padding: 8px 0; color: var(--muted); font-size: 14px; }
.card-actions { flex-direction: row; margin-top: 22px; }
.card-btn { flex: 1; border-radius: 6px; }

.featured-products .product-grid,
.latest-news .news-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
    margin-bottom: 36px;
}

.featured-products .product-card,
.latest-news .news-card {
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: none;
    transition: border-color 180ms ease, transform 180ms ease;
}

.featured-products .product-card:hover,
.latest-news .news-card:hover {
    border-color: #adc8c4;
    box-shadow: none;
    transform: translateY(-3px);
}

.featured-products .product-image,
.latest-news .news-image {
    height: auto;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--surface-soft);
}

.latest-news .news-image { aspect-ratio: 16 / 10; }
.featured-products .product-image img,
.latest-news .news-image img { width: 100%; height: 100%; object-fit: cover; }

.featured-products .product-info,
.latest-news .news-info { padding: 22px; }

.featured-products h3,
.latest-news h3 {
    display: -webkit-box;
    margin: 0 0 10px;
    overflow: hidden;
    color: var(--ink);
    font-size: 19px;
    line-height: 1.4;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.featured-products .product-info p,
.latest-news .news-info p {
    display: -webkit-box;
    min-height: 3.4em;
    margin: 0 0 18px;
    overflow: hidden;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

/* Solutions list layout */
.solutions-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 36px;
}

.solution-row {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 56px;
    align-items: center;
    padding: 36px 0;
    border-bottom: 1px solid var(--line);
}

.solution-row:first-child { padding-top: 0; }

.solution-row.reverse {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.solution-row.reverse .solution-row-image { order: 2; }
.solution-row.reverse .solution-row-body { order: 1; }

.solution-row-image {
    aspect-ratio: 14 / 9;
    overflow: hidden;
    border-radius: 8px;
    background: var(--surface-soft);
}

.solution-row-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 400ms ease;
}

.solution-row:hover .solution-row-image img { transform: scale(1.04); }

.solution-row-body h3 {
    margin: 0 0 14px;
    color: var(--ink);
    font-size: 22px;
    line-height: 1.4;
}

.solution-row-body p {
    margin: 0 0 20px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.8;
}

.solution-row-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--brand-dark);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: gap 200ms ease;
}

.solution-row-link:hover { gap: 10px; }

.latest-news .news-date { display: block; margin-bottom: 10px; color: var(--muted); font-size: 13px; }
.text-center { text-align: left; }

.faq-container {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid var(--line);
}

.faq-item {
    padding: 24px 28px 24px 0;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.faq-item:nth-child(even) { padding-right: 0; padding-left: 28px; border-left: 1px solid var(--line); }
.faq-item h3 { margin: 0 0 10px; color: var(--ink); font-size: 17px; line-height: 1.45; }
.faq-answer { max-height: none; padding: 0; }
.faq-answer p {
    display: -webkit-box;
    overflow: hidden;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.75;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
}

.cta-section {
    padding: 88px 0;
    background: var(--ink);
    color: #fff;
}

.cta-content { text-align: left; }
.cta-content h2 { margin: 0 0 14px; color: #fff; font-size: 38px; }
.cta-content p { margin: 0 0 28px; color: #b9c6c3; font-size: 17px; }
.btn-light { border-color: var(--brand); background: var(--brand); color: #fff; }
.btn-light:hover { border-color: #51bdb8; background: #51bdb8; color: var(--ink); }

@keyframes heroCopyIn {
    from { opacity: 0; transform: translateY(calc(-50% + 22px)); }
    to { opacity: 1; transform: translateY(-50%); }
}

@keyframes heroImageIn {
    from { opacity: 0.65; transform: scale(1.025); }
    to { opacity: 1; transform: scale(1); }
}

@media (max-width: 900px) {
    .about-content { grid-template-columns: 1fr; gap: 44px; }
    .about-advantages-card { padding-left: 0; border-left: 0; }
    .featured-products .product-grid,
    .latest-news .news-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .solution-row { grid-template-columns: 1fr; gap: 28px; }
    .solution-row.reverse { grid-template-columns: 1fr; }
    .solution-row.reverse .solution-row-image { order: unset; }
    .solution-row.reverse .solution-row-body { order: unset; }
}

@media (max-width: 768px) {
    .container { width: min(100% - 32px, var(--page-width)); }
    .hero-banner {
        height: 520px;
        min-height: 520px;
        max-height: 520px;
    }

    .hero-bg { background-position: 58% center; }
    .hero-bg::after { background: rgba(12, 24, 22, 0.62); }
    .hero-content {
        top: auto;
        bottom: 48px;
        left: 16px;
        width: calc(100% - 32px);
        transform: none;
        animation-name: heroCopyInMobile;
    }

    .hero-brand { margin-bottom: 14px; font-size: 13px; }
    .hero-content h1 { margin-bottom: 16px; font-size: 32px; line-height: 1.25; }
    .hero-content p { margin-bottom: 22px; font-size: 15px; line-height: 1.7; -webkit-line-clamp: 3; }
    .slider-prev, .slider-next { display: none; }
    .slider-dots { bottom: 18px; }
    .about-section, .featured-products, .featured-solutions, .latest-news, .faq-section { padding: 64px 0; }
    .about-text h2, .cta-content h2 { font-size: 30px; }
    .featured-products .product-grid,
    .latest-news .news-grid,
    .faq-container { grid-template-columns: 1fr; }
    .faq-item, .faq-item:nth-child(even) { padding: 22px 0; border-left: 0; }
    .cta-section { padding: 64px 0; }
}

@keyframes heroCopyInMobile {
    from { opacity: 0; transform: translateY(22px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== 首页新样式（对齐 react，青绿主题） ===== */

/* Hero 全宽/限宽：非 banner_type=1 时限宽居中 */
.hero-banner:not(.hero-full) {
    max-width: 1216px;
    margin-left: auto;
    margin-right: auto;
}

/* 2. 快速导航 */
.quick-nav { padding: 14px 0 4px; }
.quick-nav-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.quick-nav-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    min-height: 42px;
    padding: 8px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-soft);
    color: var(--ink);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: border-color 180ms ease, background-color 180ms ease;
}
.quick-nav-card:hover {
    border-color: var(--brand);
    background: var(--brand-soft);
    color: var(--brand-dark);
}
.quick-nav-arrow { color: var(--muted); font-size: 12px; }

/* 3. 公司介绍区 */
.home-intro { padding-top: 40px; }
.home-intro-grid {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    gap: 28px;
    align-items: start;
}
.home-intro-title {
    margin: 0 0 18px;
    color: var(--ink);
    font-size: 30px;
    line-height: 1.3;
    font-weight: 700;
}
.home-intro-desc {
    color: var(--muted);
    font-size: 15px;
    line-height: 1.85;
    text-align: justify;
}
.home-intro-desc p { margin: 0 0 14px; }
.home-intro-links { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 16px; }
.intro-link { color: var(--brand); font-size: 13px; font-weight: 600; text-decoration: none; }
.intro-link:hover { color: var(--brand-dark); }
.intro-link-muted { color: var(--muted); }
.intro-link-muted:hover { color: var(--brand); }

/* 服务优势卡片 */
.home-intro-aside {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-soft);
    box-shadow: 0 4px 16px rgba(23, 35, 33, 0.04);
}
.sa-title {
    display: flex;
    align-items: center;
    margin: 0 0 16px;
    color: var(--ink);
    font-size: 15px;
    font-weight: 700;
}
.sa-bar { width: 4px; height: 16px; margin-right: 8px; border-radius: 2px; background: var(--brand); }
.sa-list { list-style: none; margin: 0 0 16px; padding: 0; }
.sa-item { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 10px; font-size: 14px; line-height: 1.65; }
.sa-dot { flex-shrink: 0; width: 6px; height: 6px; margin-top: 7px; border-radius: 50%; background: var(--brand); }
.sa-item-text { color: var(--muted); }
.sa-item-text strong { color: var(--ink); font-weight: 650; }
.sa-actions { display: flex; gap: 10px; }
.sa-btn {
    display: inline-flex;
    flex: 1;
    align-items: center;
    justify-content: center;
    padding: 9px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}
.sa-btn-primary { background: var(--brand); color: #fff; border: 1px solid var(--brand); }
.sa-btn-primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); }
.sa-btn-outline { background: #fff; color: var(--brand); border: 1px solid var(--brand); }
.sa-btn-outline:hover { background: var(--brand); color: #fff; }

/* 4. 核心优势 */
.home-advantages { background: var(--surface-soft); }
.home-advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}
.home-advantage-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: 0 2px 12px rgba(23, 35, 33, 0.05);
    transition: transform 180ms ease, box-shadow 180ms ease;
}
.home-advantage-card:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(23, 35, 33, 0.08); }
.advantage-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--brand-soft);
    font-size: 22px;
}
.advantage-name { color: var(--ink); font-size: 16px; font-weight: 700; line-height: 1.4; }
.advantage-desc { margin-top: 6px; color: var(--muted); font-size: 13px; line-height: 1.7; }

/* 5/7/8. 通用卡片网格 */
.home-cards-grid { display: grid; gap: 20px; }
.home-cards-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.home-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    text-decoration: none;
    box-shadow: 0 2px 12px rgba(23, 35, 33, 0.04);
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}
.home-card:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(23, 35, 33, 0.1); border-color: #c5ddd9; }
.home-card-thumb { aspect-ratio: 16 / 10; overflow: hidden; background: var(--surface-soft); }
.home-card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 300ms ease; }
.home-card:hover .home-card-thumb img { transform: scale(1.05); }
.home-card-body { display: flex; flex-direction: column; flex: 1; padding: 18px 20px; }
.home-card-body h3 {
    margin: 0 0 8px;
    color: var(--ink);
    font-size: 17px;
    font-weight: 650;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.home-card-body p {
    margin: 0 0 12px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.home-card-link { margin-top: auto; color: var(--brand); font-size: 13px; font-weight: 600; }
.home-section-more { margin-top: 40px; text-align: center; }
.btn-primary-round {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 999px;
    background: var(--brand);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 180ms ease, opacity 180ms ease;
}
.btn-primary-round:hover { background: var(--brand-dark); color: #fff; }

/* 6. 新闻横向卡片 */
.home-news-list { display: flex; flex-direction: column; gap: 20px; }
.home-news-item {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
    gap: 24px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
    text-decoration: none;
    box-shadow: 0 2px 12px rgba(23, 35, 33, 0.04);
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}
.home-news-item:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(23, 35, 33, 0.1); border-color: #c5ddd9; }
.home-news-thumb { min-height: 220px; overflow: hidden; background: var(--surface-soft); }
.home-news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 300ms ease; }
.home-news-item:hover .home-news-thumb img { transform: scale(1.04); }
.home-news-body { display: flex; flex-direction: column; justify-content: center; padding: 28px 28px 28px 0; }
.home-news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; color: var(--muted); font-size: 13px; }
.home-news-cat { color: var(--brand); font-weight: 600; }
.home-news-body h3 {
    margin: 0 0 10px;
    color: var(--ink);
    font-size: 21px;
    font-weight: 700;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.home-news-body p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 9. FAQ */
.home-faq { background: var(--surface-soft); }
.home-faq-list { display: flex; flex-direction: column; gap: 14px; }
.home-faq-item { padding: 20px 24px; border-radius: var(--radius); background: var(--surface); box-shadow: 0 2px 10px rgba(23, 35, 33, 0.04); }
.home-faq-item h3 { margin: 0 0 8px; color: var(--brand-dark); font-size: 16px; font-weight: 650; }
.home-faq-item p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }

/* 10. 订阅 */
.home-newsletter { text-align: center; }
.newsletter-inner { max-width: 560px; margin: 0 auto; }
.newsletter-inner h2 { margin: 0 0 12px; color: var(--ink); font-size: 28px; }
.newsletter-inner > p { margin: 0 0 28px; color: var(--muted); font-size: 15px; }
.newsletter-form { display: flex; max-width: 480px; margin: 0 auto; gap: 10px; }
.newsletter-form input {
    flex: 1;
    padding: 12px 20px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    font-size: 14px;
    outline: none;
    transition: border-color 180ms ease;
}
.newsletter-form input:focus { border-color: var(--brand); }
.newsletter-button {
    padding: 12px 24px;
    border: none;
    border-radius: 999px;
    background: var(--brand);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 180ms ease;
}
.newsletter-button:hover { background: var(--brand-dark); }
.newsletter-note { margin-top: 16px; color: var(--muted); font-size: 12px; }

/* 11. CTA 覆盖 */
.cta-actions { display: flex; gap: 14px; margin-top: 8px; }
.btn-outline-light { border: 1px solid rgba(255, 255, 255, 0.6); background: transparent; color: #fff; }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; color: #fff; }

/* 响应式 */
@media (max-width: 1024px) {
    .home-intro-grid { grid-template-columns: 1fr; }
    .home-cards-grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .home-advantages-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .home-news-item { grid-template-columns: 1fr; }
    .home-news-thumb { min-height: 200px; }
    .home-news-body { padding: 20px; }
}
@media (max-width: 768px) {
    .quick-nav-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .home-cards-grid-3 { grid-template-columns: 1fr; }
    .home-advantages-grid { grid-template-columns: 1fr; }
}

/* 首页区块统一留白与背景交替（提供模块隔离） */
.home-intro,
.home-products,
.home-solutions,
.home-faq {
    background: var(--surface);
    padding: 64px 0 88px;
}
.home-advantages,
.home-news,
.home-experts {
    background: var(--surface-soft);
    padding: 64px 0 88px;
}