/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #334155;
    background-color: #ffffff;
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #8B5CF6 0%, #3B82F6 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #7C3AED 0%, #2563EB 100%);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: #8B5CF6;
    border: 2px solid #8B5CF6;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #8B5CF6 0%, #3B82F6 100%);
    color: white;
}

.btn-white {
    background-color: white;
    color: #8B5CF6;
}

.btn-white:hover {
    background-color: #f8fafc;
    transform: translateY(-2px);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-logo img {
    height: 50px; /* 调大Logo尺寸 */
    width: auto;
}

.nav-logo h1 {
    color: #8B5CF6;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

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

.nav-link {
    text-decoration: none;
    color: #334155;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #8B5CF6;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #8B5CF6;
    transition: width 0.3s ease;
}

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

/* 下拉菜单 */
.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    padding: 1rem 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    list-style: none;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    padding: 0.5rem 1.5rem;
}

.dropdown-menu a {
    color: #334155;
    text-decoration: none;
    transition: color 0.3s ease;
}

.dropdown-menu a:hover {
    color: #8B5CF6;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #334155;
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区域 */
.hero {
    display: flex;
    align-items: center;
    min-height: 100vh;
    padding: 120px 20px 80px;
    max-width: 1200px;
    margin: 0 auto;
    gap: 4rem;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #8B5CF6 0%, #3B82F6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #6B7280;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

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

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 产品概览 */
.products-overview {
    padding: 80px 0;
    background-color: #F8FAFC;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #8B5CF6 0%, #3B82F6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: #6B7280;
    text-align: center;
    margin-bottom: 3rem;
}

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

.product-card {
    background-color: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.product-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

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

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(30, 58, 138, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.product-content {
    padding: 2rem;
}

.product-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 1rem;
}

.product-content p {
    color: #6B7280;
    line-height: 1.6;
}

/* 公司优势 */
/* 优势板块 */
.advantages {
    padding: 80px 0;
    background-color: #ffffff;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-item {
    text-align: center;
    padding: 2rem 1rem;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.15);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #8B5CF6 0%, #3B82F6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
}

.advantage-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1E293B;
    margin-bottom: 1rem;
}

.advantage-item p {
    color: #64748B;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 客户案例 */
.testimonials {
    padding: 80px 0;
    background-color: #F8F9FA;
}

.testimonials-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto 2rem;
}

.testimonial-item {
    display: none;
    text-align: center;
    padding: 2rem;
}

.testimonial-item.active {
    display: block;
}

.testimonial-content p {
    font-size: 1.25rem;
    color: #374151;
    font-style: italic;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.testimonial-author strong {
    color: #1E3A8A;
    font-weight: 600;
}

.testimonial-author span {
    color: #6B7280;
    display: block;
    margin-top: 0.5rem;
}

.testimonials-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background-color: #D1D5DB;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.nav-dot.active {
    background-color: #D2691E;
}

/* 联系信息 */
.contact-info {
    padding: 80px 0;
    background-color: #1E3A8A;
    color: white;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.contact-item h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.contact-item h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.contact-item p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

.contact-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.contact-list svg {
    color: #D2691E;
}

/* 页脚 */
.footer {
    background-color: #111827;
    color: white;
    padding: 60px 0 20px;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #D2691E;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.6;
}

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

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

.footer-section ul li a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section ul li a:hover {
    opacity: 1;
    color: #D2691E;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background-color: #374151;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: background-color 0.3s ease;
}

.social-links a:hover {
    background-color: #D2691E;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: white;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background-color: #f8f9fa;
        margin-top: 1rem;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
        padding: 100px 20px 60px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}



/* 关于我们页面样式 */
.page-header {
    background: linear-gradient(135deg, #A78BFA 0%, #C084FC 50%, #06B6D4 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.25rem;
    opacity: 0.9;
}

.company-intro {
    padding: 80px 0;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1E3A8A;
    margin-bottom: 2rem;
}

.intro-content p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #6B7280;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

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

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #D2691E;
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: #6B7280;
    font-weight: 500;
}

.intro-image img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.company-culture {
    padding: 80px 0;
    background-color: #F8F9FA;
}

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

.culture-item {
    background-color: white;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.culture-icon {
    width: 80px;
    height: 80px;
    background-color: #D2691E;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
}

.culture-item h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 1rem;
}

.culture-item p {
    color: #6B7280;
    line-height: 1.6;
}

.company-timeline {
    padding: 80px 0;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: #D2691E;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-year {
    width: 80px;
    height: 80px;
    background-color: #D2691E;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
    position: relative;
    z-index: 2;
}

.timeline-content {
    flex: 1;
    padding: 2rem;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin: 0 2rem;
}

.timeline-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: #6B7280;
    line-height: 1.6;
}

.team-section {
    padding: 80px 0;
    background-color: #F8F9FA;
}

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

.team-member {
    background-color: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.member-photo {
    width: 120px;
    height: 120px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    background-color: #D2691E;
    display: flex;
    align-items: center;
    justify-content: center;
}

.photo-placeholder {
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
}

.team-member h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 0.5rem;
}

.member-title {
    color: #D2691E;
    font-weight: 500;
    margin-bottom: 1rem;
}

.member-desc {
    color: #6B7280;
    line-height: 1.6;
}

/* 响应式设计 - 关于我们页面 */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .company-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline::before {
        left: 40px;
    }
    
    .timeline-item {
        flex-direction: row !important;
    }
    
    .timeline-year {
        width: 60px;
        height: 60px;
        font-size: 1rem;
    }
    
    .timeline-content {
        margin-left: 1rem;
        margin-right: 0;
    }
}

@media (max-width: 480px) {
    .company-stats {
        grid-template-columns: 1fr;
    }
    
    .timeline-content {
        padding: 1.5rem;
    }
}

/* 联系我们页面样式 */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: start;
}

.contact-methods {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.contact-method {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 1rem;
    padding: 2rem 1.5rem;
    background-color: #F8FAFC;
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-height: 180px;
}

.contact-method:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.1);
}

.method-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #8B5CF6 0%, #3B82F6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.method-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 0.5rem;
}

.method-content p {
    font-size: 1.125rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.25rem;
}

.method-content span {
    color: #6B7280;
    font-size: 0.9rem;
}

/* 表单样式 */
.contact-form {
    background-color: #F8F9FA;
    padding: 2rem;
    border-radius: 16px;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #E5E7EB;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background-color: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #D2691E;
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #EF4444;
}

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

.contact-form .btn {
    width: 100%;
    padding: 16px;
    font-size: 1.125rem;
}

/* 地图区域 */
.map-section {
    padding: 80px 0;
    background-color: #F8F9FA;
}

.map-container {
    margin-top: 2rem;
}

.map-placeholder {
    height: 400px;
    background-color: #E5E7EB;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.map-content {
    color: #6B7280;
}

.map-content svg {
    color: #D2691E;
    margin-bottom: 1rem;
}

.map-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 1rem;
}

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

/* 服务承诺 */
.service-promise {
    padding: 80px 0;
}

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

.promise-item {
    text-align: center;
    padding: 2rem;
    background-color: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.promise-icon {
    width: 80px;
    height: 80px;
    background-color: #D2691E;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
}

.promise-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 1rem;
}

.promise-item p {
    color: #6B7280;
    line-height: 1.6;
}

/* 响应式设计 - 联系我们页面 */
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-method {
        flex-direction: column;
        text-align: center;
    }
    
    .method-icon {
        margin: 0 auto;
    }
    
    .promise-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .contact-form {
        padding: 1.5rem;
    }
    
    .map-placeholder {
        height: 300px;
    }
}


/* 产品页面样式 */
.product-header {
    background: linear-gradient(135deg, #1E3A8A 0%, #D2691E 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.product-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.product-header p {
    font-size: 1.25rem;
    opacity: 0.9;
}

.product-intro {
    padding: 80px 0;
}

.product-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

/* 图片轮播样式 - 修复只显示一张图片 */
.product-gallery {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.main-image {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
}

.main-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.main-image img:first-child {
    opacity: 1; /* 只显示第一张图片 */
}

.image-thumbnails {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    justify-content: center;
}

.thumbnail {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.thumbnail:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

.thumbnail.active {
    opacity: 1;
    border: 2px solid #8B5CF6;
}

.product-content-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1E3A8A;
    margin-bottom: 2rem;
}

.product-content-section > p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: #6B7280;
    margin-bottom: 3rem;
}

.product-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.feature-item {
    padding: 1.5rem;
    background-color: #F8F9FA;
    border-radius: 12px;
    border-left: 4px solid #D2691E;
}

.feature-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: #6B7280;
    line-height: 1.6;
}

.product-specs {
    padding: 80px 0;
    background-color: #F8F9FA;
}

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

.spec-category {
    background-color: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.spec-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #D2691E;
}

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

.spec-category li {
    padding: 0.5rem 0;
    color: #6B7280;
    border-bottom: 1px solid #E5E7EB;
}

.spec-category li:last-child {
    border-bottom: none;
}

.application-scenarios {
    padding: 80px 0;
}

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

.scenario-item {
    text-align: center;
    padding: 2rem;
    background-color: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.scenario-item:hover {
    transform: translateY(-5px);
}

.scenario-icon {
    width: 80px;
    height: 80px;
    background-color: #D2691E;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
}

.scenario-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 1rem;
}

.scenario-item p {
    color: #6B7280;
    line-height: 1.6;
}

.product-advantages {
    padding: 80px 0;
    background-color: #F8F9FA;
}

.advantages-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    background-color: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.advantage-number {
    width: 60px;
    height: 60px;
    background-color: #D2691E;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.advantage-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 1rem;
}

.advantage-content p {
    color: #6B7280;
    line-height: 1.6;
}

.product-contact {
    padding: 80px 0;
    background-color: #1E3A8A;
    color: white;
}

.contact-cta {
    text-align: center;
}

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

.contact-cta p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

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

/* 响应式设计 - 产品页面 */
@media (max-width: 768px) {
    .product-header h1 {
        font-size: 2.5rem;
    }
    
    .product-intro-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .product-features {
        grid-template-columns: 1fr;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .advantage-item {
        flex-direction: column;
        text-align: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .product-header h1 {
        font-size: 2rem;
    }
    
    .contact-cta h2 {
        font-size: 2rem;
    }
}