:root {
    --primary-color: #0066cc;
    --primary-dark: #004d99;
    --primary-light: #3399ff;
    --secondary-color: #ff6600;
    --text-color: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    --bg-color: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a2e;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
    --radius: 8px;
    --radius-lg: 16px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

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

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

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

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

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 18px;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-color);
    box-shadow: var(--shadow);
}

.top-bar {
    background: var(--bg-dark);
    color: #fff;
    padding: 8px 0;
    font-size: 14px;
}

.top-bar .container {
    display: flex;
    justify-content: flex-end;
}

.top-info {
    display: flex;
    gap: 30px;
}

.top-info span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-info i {
    color: var(--primary-light);
}

.navbar {
    padding: 15px 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo a {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 2px;
}

.logo-sub {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 3px;
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-menu a {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
    position: relative;
    padding: 5px 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.cart-btn {
    position: relative;
    font-size: 20px;
    color: var(--text-color);
}

.cart-btn:hover {
    color: var(--primary-color);
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--secondary-color);
    color: #fff;
    font-size: 12px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-color);
}

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    margin-top: 90px;
    overflow: hidden;
}

.hero-slider {
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
    max-width: 700px;
    padding-top: 150px;
}

.hero-content h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

.hero-btns .btn-outline {
    color: #fff;
    border-color: #fff;
}

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

.slider-dots {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    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: #fff;
    transform: scale(1.2);
}

.features {
    background: var(--bg-light);
    padding: 80px 0;
    margin-top: -50px;
    position: relative;
    z-index: 10;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-item {
    background: var(--bg-color);
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 36px;
    color: #fff;
}

.feature-item h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-color);
}

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

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

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
}

.products-section {
    padding: 100px 0;
}

.product-categories {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.category-btn {
    padding: 10px 25px;
    background: var(--bg-light);
    border: none;
    border-radius: 30px;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-color);
}

.category-btn:hover,
.category-btn.active {
    background: var(--primary-color);
    color: #fff;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.product-card {
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e0e5ec 0%, #f5f7fa 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-image i {
    font-size: 60px;
    color: var(--primary-color);
    opacity: 0.3;
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 102, 204, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

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

.product-overlay .btn:hover {
    background: var(--secondary-color);
    color: #fff;
}

.product-info {
    padding: 20px;
}

.product-info h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-color);
}

.product-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: 5px;
}

.product-price .price {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary-color);
}

.product-price .unit {
    font-size: 14px;
    color: var(--text-muted);
}

.section-footer {
    text-align: center;
    margin-top: 50px;
}

.about-section {
    padding: 100px 0;
    background: var(--bg-light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content h2 {
    font-size: 36px;
    margin-bottom: 25px;
    color: var(--text-color);
}

.about-content .lead {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 20px;
    font-weight: 500;
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 30px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

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

.stat-number {
    display: block;
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 14px;
    color: var(--text-light);
}

.about-image {
    position: relative;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.image-placeholder i {
    font-size: 80px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.image-placeholder span {
    font-size: 18px;
    opacity: 0.7;
}

.partners {
    padding: 80px 0;
}

.partners-slider {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 30px;
}

.partner-item {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
}

.partner-item:hover {
    background: var(--bg-color);
    box-shadow: var(--shadow);
}

.partner-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.partner-logo i {
    font-size: 40px;
    color: var(--text-muted);
}

.partner-logo span {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
}

.news-section {
    padding: 100px 0;
    background: var(--bg-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    position: relative;
    height: 200px;
}

.news-image .placeholder-image {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.news-image .placeholder-image i {
    color: #fff;
    opacity: 0.3;
}

.news-date {
    position: absolute;
    bottom: 15px;
    left: 15px;
    background: var(--primary-color);
    color: #fff;
    padding: 5px 12px;
    border-radius: var(--radius);
    font-size: 13px;
}

.news-content {
    padding: 25px;
}

.news-content h4 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-color);
    line-height: 1.4;
}

.news-content p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.read-more {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.read-more:hover {
    color: var(--primary-dark);
}

.read-more i {
    transition: var(--transition);
}

.read-more:hover i {
    transform: translateX(5px);
}

.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    text-align: center;
}

.cta-content h2 {
    font-size: 42px;
    color: #fff;
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

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

.cta-btns .btn-primary {
    background: #fff;
    color: var(--primary-color);
    border-color: #fff;
}

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

.cta-btns .btn-outline {
    color: #fff;
    border-color: #fff;
}

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

.footer {
    background: var(--bg-dark);
    color: #fff;
}

.footer-main {
    padding: 80px 0 50px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 50px;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-logo .logo-text {
    color: #fff;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #fff;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-col h4 {
    font-size: 18px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary-light);
    padding-left: 5px;
}

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.contact-info li i {
    color: var(--primary-light);
    margin-top: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
}

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

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow);
}

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

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

.page-banner {
    height: 300px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    margin-top: 90px;
}

.page-banner h1 {
    font-size: 42px;
    margin-bottom: 10px;
}

.page-banner .breadcrumb {
    font-size: 16px;
    opacity: 0.8;
}

.page-banner .breadcrumb a {
    color: #fff;
}

.page-banner .breadcrumb a:hover {
    text-decoration: underline;
}

@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .partners-slider {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-color);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        box-shadow: var(--shadow);
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-menu a {
        display: block;
        padding: 15px 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        margin-top: 70px;
    }
    
    .hero-content h1 {
        font-size: 32px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .hero-btns {
        flex-direction: column;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-slider {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-content h2 {
        font-size: 28px;
    }
    
    .cta-btns {
        flex-direction: column;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
}

.shop-filters {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.filter-group select {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 14px;
    background: var(--bg-color);
    cursor: pointer;
}

.product-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.product-actions .btn {
    flex: 1;
    padding: 10px;
    font-size: 14px;
}

.add-to-cart {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    color: #fff;
}

.add-to-cart:hover {
    background: #e65c00;
    border-color: #e65c00;
}

.cart-page {
    padding: 60px 0;
}

.cart-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 30px;
}

.cart-table th,
.cart-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.cart-table th {
    background: var(--bg-light);
    font-weight: 600;
}

.cart-product {
    display: flex;
    align-items: center;
    gap: 15px;
}

.cart-product-image {
    width: 80px;
    height: 80px;
    background: var(--bg-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cart-product-image i {
    font-size: 30px;
    color: var(--text-muted);
}

.quantity-input {
    display: flex;
    align-items: center;
    gap: 10px;
}

.quantity-input button {
    width: 30px;
    height: 30px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    cursor: pointer;
    font-size: 16px;
    border-radius: var(--radius);
}

.quantity-input input {
    width: 50px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 5px;
}

.cart-summary {
    background: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-lg);
}

.cart-summary h3 {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
}

.summary-row.total {
    font-size: 20px;
    font-weight: 700;
    color: var(--secondary-color);
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.checkout-btn {
    width: 100%;
    margin-top: 20px;
}

.contact-section {
    padding: 80px 0;
}

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

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius-lg);
}

.contact-form h3 {
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 15px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.contact-info-box {
    padding: 40px;
}

.contact-info-box h3 {
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.info-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-icon i {
    font-size: 24px;
    color: #fff;
}

.info-content h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

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

.map-container {
    margin-top: 40px;
    height: 300px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-placeholder {
    text-align: center;
    color: var(--text-muted);
}

.map-placeholder i {
    font-size: 60px;
    margin-bottom: 15px;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.lazy-img {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lazy-img.loaded {
    opacity: 1;
}

.loading-placeholder {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.logo-img {
    height: 50px;
    width: auto;
    vertical-align: middle;
}

.logo-text-wrapper {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.hero-slider .slide {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    animation: bgScroll 30s linear infinite;
}

@keyframes bgScroll {
    0% {
        background-position: center top;
    }
    50% {
        background-position: center bottom;
    }
    100% {
        background-position: center top;
    }
}

.partner-item {
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
}

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

.partner-logo img {
    max-width: 60px;
    max-height: 40px;
    object-fit: contain;
    margin-bottom: 10px;
}

.product-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.product-actions .btn {
    flex: 1;
    padding: 10px;
    font-size: 14px;
}

.product-actions .btn i {
    margin-right: 5px;
}

.wechat-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 10000;
    justify-content: center;
    align-items: center;
}

.wechat-modal-content {
    background: #fff;
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    max-width: 320px;
    position: relative;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.wechat-modal-content img {
    border: 3px solid #07c160;
}

.footer-qrcode {
    margin-top: 15px;
}

.footer-qrcode img {
    border: 2px solid rgba(255,255,255,0.2);
}

.footer-logo-img {
    height: 50px;
    margin-bottom: 15px;
}

@media (max-width: 768px) {
    .hero-slider .slide {
        background-attachment: scroll;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .wechat-modal-content {
        margin: 20px;
        max-width: 280px;
    }
}