/* 现代化CSS样式 - 湖南奕元科技官网 */

/* 基础变量定义 */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #06b6d4;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --text-muted: #94a3b8;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    --transition: all 0.3s ease;
}

/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* 文本样式 */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight-text {
    color: var(--text-dark);
    font-weight: 800;
}

/* 通用类 */
.section-padding {
    padding: 5rem 0;
}

.section-header {
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    padding: 1rem 0;
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-md);
}

.navbar-brand img {
    height: 40px;
    transition: var(--transition);
}

.navbar-nav .nav-link {
    font-weight: 500;
    color: var(--text-dark);
    margin: 0 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.1);
}

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius);
    margin-top: 0.5rem;
}

.dropdown-item {
    padding: 0.75rem 1.5rem;
    transition: var(--transition);
}

.dropdown-item:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
}

/* 首页头部 */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, #4f46e5 0%, #06b6d4 50%, #10b981 100%);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 40% 80%, rgba(255, 255, 255, 0.06) 0%, transparent 50%);
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.7) 0%, rgba(6, 182, 212, 0.65) 50%, rgba(16, 185, 129, 0.6) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    color: #ffffff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.9);
    letter-spacing: -0.5px;
    color: #ffffff;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 1;
    line-height: 1.6;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8);
    font-weight: 500;
    color: #ffffff;
}

.hero-buttons {
    margin-bottom: 3rem;
}

.hero-buttons .btn {
    padding: 0.875rem 2rem;
    font-weight: 600;
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border: none;
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.8);
    color: white;
    background: rgba(255, 255, 255, 0.15);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 1);
    transform: translateY(-2px);
    color: white;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.6);
}

.hero-stats {
    display: flex;
    gap: 2rem;
}

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

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: #fbbf24;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.stat-item p {
    font-size: 0.875rem;
    opacity: 1;
    margin: 0;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
    font-weight: 500;
    color: #ffffff;
}

.hero-image {
    position: relative;
    z-index: 3;
}

.hero-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    transform: perspective(1000px) rotateY(-10deg);
    transition: var(--transition);
}

.hero-image:hover img {
    transform: perspective(1000px) rotateY(0deg);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-down {
    color: white;
    font-size: 1.5rem;
    animation: bounce 2s infinite;
    text-decoration: none;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* 关于我们 */
.about-images {
    position: relative;
}

.image-gallery {
    position: relative;
}

.main-image {
    margin-bottom: 1rem;
}

.main-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.small-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.small-images img {
    width: 100%;
    height: 140px;
    object-fit: cover;
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 8px;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: var(--shadow-md);
}

.timeline-year {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.timeline-content {
    color: var(--text-light);
    line-height: 1.6;
}

/* 优势卡片 */
.advantage-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    height: 100%;
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.advantage-icon {
    margin-bottom: 1.5rem;
}

.advantage-icon img {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

.advantage-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

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

/* 产品卡片 */
.product-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    height: 100%;
    border: 1px solid var(--border-color);
}

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

.product-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

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

.product-content {
    padding: 1.5rem;
}

.product-content h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.product-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.feature-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.feature-list li {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.feature-list i {
    color: var(--success-color);
    margin-right: 0.5rem;
}

.product-content .btn {
    width: 100%;
    padding: 0.75rem;
    font-weight: 600;
    border-radius: var(--border-radius);
}

/* 硬件卡片 */
.hardware-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    height: 100%;
}

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

.hardware-image {
    margin-bottom: 1.5rem;
}

.hardware-image img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    border-radius: var(--border-radius);
}

.hardware-content h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.hardware-content p {
    color: var(--text-light);
    margin: 0;
    font-size: 0.875rem;
}

/* 案例卡片 */
.case-card {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    height: 300px;
    transition: var(--transition);
}

.case-image {
    position: relative;
    width: 100%;
    height: 100%;
}

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

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.8) 0%, rgba(6, 182, 212, 0.8) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    opacity: 0;
    transition: var(--transition);
    text-align: center;
    padding: 2rem;
}

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

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

.case-overlay h4 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.case-overlay p {
    font-size: 1rem;
    margin: 0;
}

/* 合作伙伴轮播 */
.partners-carousel {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

.partner-item {
    flex: 0 0 auto;
    width: 220px;
    height: 130px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    padding: 1rem;
}

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

.partner-item img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    filter: none;
    transition: var(--transition);
}

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

/* 联系我们 */
.contact-section {
    padding: 3rem 0;
    background: linear-gradient(135deg, #64748b 0%, #475569 100%);
}

.contact-info {
    padding: 1rem 0;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.contact-icon {
    flex: 0 0 auto;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
}

.contact-icon i {
    font-size: 1.25rem;
    color: white;
}

.contact-details h5 {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;
}

.contact-details p {
    margin: 0;
    color: rgba(255, 255, 255, 0.8);
}

.contact-cta {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    backdrop-filter: blur(10px);
}

.contact-logo img {
    max-height: 60px;
}

.contact-cta h4 {
    color: white;
    margin-bottom: 1rem;
}

.contact-cta p {
    color: rgba(255, 255, 255, 0.8);
}

.btn-light {
    background: white;
    color: var(--primary-color);
    border: none;
    font-weight: 600;
}

.btn-light:hover {
    background: var(--bg-light);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

.footer p {
    margin: 0;
    line-height: 1.6;
}

.text-muted {
    color: var(--text-muted) !important;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

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

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* 按钮样式 */
.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
    font-weight: 600;
    transition: var(--transition);
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-padding {
        padding: 3rem 0;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .stat-item h3 {
        font-size: 2rem;
    }
    
    .partners-carousel {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .partner-item {
        width: 200px;
        height: 110px;
        padding: 0.8rem;
    }
    
    .contact-section {
        padding: 2.5rem 0;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
        margin-bottom: 1.5rem;
    }
    
    .contact-icon {
        margin: 0 auto 1rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin-bottom: 1rem;
    }
    
    .product-content {
        padding: 1rem;
    }
    
    .advantage-card,
    .hardware-card {
        padding: 1.5rem;
    }
    
    .contact-section {
        padding: 2rem 0;
    }
    
    .contact-info {
        padding: 0.5rem 0;
    }
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* AOS动画覆盖 */
[data-aos] {
    pointer-events: none;
}

[data-aos].aos-animate {
    pointer-events: auto;
}

/* 加载动画 */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 打印样式 */
@media print {
    .navbar,
    .back-to-top,
    .scroll-indicator {
        display: none !important;
    }
    
    .hero-section {
        height: auto;
        min-height: auto;
        padding: 2rem 0;
    }
    
    .section-padding {
        padding: 1rem 0;
    }
} 

/* 首页头部样式优化 - 参考smart-lab.html风格 */
.product-hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 20%, #0369a1 60%, #0284c7 80%, #0ea5e9 100%);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.product-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 15% 25%, rgba(14, 165, 233, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 85% 15%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 85%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 25% 75%, rgba(168, 85, 247, 0.08) 0%, transparent 50%);
    z-index: 1;
}

.product-hero .badge {
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.product-hero .display-4 {
    line-height: 1.2;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.product-hero .text-warning {
    color: #fbbf24 !important;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

.product-hero .lead {
    font-size: 1.2rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 400;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.product-hero .btn-light {
    background: linear-gradient(135deg, #ffffff 0%, #e0f2fe 100%);
    color: #0369a1;
    font-weight: 600;
    padding: 0.875rem 2rem;
    border-radius: 0.75rem;
    border: none;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.2);
    transition: all 0.3s ease;
}

.product-hero .btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.3);
    color: #0369a1;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.product-hero .btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.7);
    color: white;
    background: rgba(255, 255, 255, 0.12);
    font-weight: 600;
    padding: 0.875rem 2rem;
    border-radius: 0.75rem;
    backdrop-filter: blur(15px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.product-hero .btn-outline-light:hover {
    border-color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.product-hero .hero-stats {
    margin-top: 3rem;
}

.product-hero .stat-item {
    text-align: center;
    margin-bottom: 1rem;
}

.product-hero .stat-item h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 800;
    color: #fbbf24;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

.product-hero .stat-item p {
    font-size: 0.9rem;
    margin: 0;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.product-hero .hero-image-container {
    position: relative;
    text-align: center;
    z-index: 2;
}

.product-hero .hero-image {
    max-width: 100%;
    height: auto;
    border-radius: 1rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: float 6s ease-in-out infinite;
    transition: all 0.3s ease;
}

.product-hero .hero-image:hover {
    transform: scale(1.02);
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px); 
    }
    50% { 
        transform: translateY(-15px); 
    }
}

/* 响应式优化 */
@media (max-width: 768px) {
    .product-hero .display-4 {
        font-size: 2.5rem;
    }
    
    .product-hero .lead {
        font-size: 1.1rem;
    }
    
    .product-hero .btn-light,
    .product-hero .btn-outline-light {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .product-hero .stat-item h3 {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .product-hero .display-4 {
        font-size: 2rem;
    }
    
    .product-hero .hero-stats .row > div {
        margin-bottom: 1.5rem;
    }
} 

/* 关于我们部分样式优化 */
.section-badge {
    display: inline-block;
    background: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.2);
}

.about-intro-row {
    margin-top: 4rem;
}

.about-subtitle {
    font-size: 1.75rem;
    font-weight: 700;
    color: #0369a1;
    margin-bottom: 2rem;
    position: relative;
    line-height: 1.4;
}

.about-subtitle:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #0ea5e9, #3b82f6);
    border-radius: 2px;
}

.about-intro .lead {
    line-height: 1.7;
    margin-bottom: 2rem;
}

.about-intro p {
    line-height: 1.6;
    margin-bottom: 2rem;
}

.about-stats {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    padding-top: 2.5rem;
    margin-top: 2.5rem;
}

.about-stat-item {
    text-align: center;
    padding: 1rem;
}

.about-stat-item .stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: #0284c7;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-stat-item .stat-label {
    font-size: 0.9rem;
    color: #64748b;
    font-weight: 500;
}

/* 水平时间线样式 */
.timeline-horizontal {
    position: relative;
    padding: 3rem 0;
    overflow: hidden;
    margin-top: 2rem;
}

.timeline-horizontal:before {
    content: '';
    position: absolute;
    top: 100px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0ea5e9 0%, #3b82f6 50%, #0ea5e9 100%);
    z-index: 0;
}

.timeline-block {
    position: relative;
    text-align: center;
    padding: 0 1rem;
    margin-bottom: 2rem;
}

.timeline-year {
    font-size: 1.5rem;
    font-weight: 800;
    color: #0284c7;
    margin-bottom: 1rem;
}

.timeline-icon {
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    position: relative;
    z-index: 1;
    box-shadow: 0 0 0 5px rgba(14, 165, 233, 0.1), 0 5px 15px rgba(0, 0, 0, 0.1);
}

.timeline-icon i {
    font-size: 1.5rem;
    color: #0284c7;
}

.timeline-content {
    background: white;
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.timeline-content h5 {
    font-size: 1.125rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.75rem;
}

.timeline-content p {
    font-size: 0.9rem;
    color: #64748b;
    margin: 0;
}

@media (max-width: 768px) {
    .timeline-horizontal:before {
        display: none;
    }
    
    .timeline-block {
        margin-bottom: 2.5rem;
    }
}

/* 解决方案部分样式 */
.solution-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #0369a1;
    line-height: 1.4;
    margin-bottom: 2rem;
}

.solution-content {
    padding: 1rem 0;
}

.solution-features .feature-item {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
}

.solution-features .feature-item h5 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.solution-features .feature-item p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #64748b;
    margin: 0;
}

.solution-image {
    margin-bottom: 2rem;
}

@media (max-width: 992px) {
    .solution-content {
        margin-top: 2rem;
    }
    
    .solution-features .feature-item {
        margin-bottom: 2rem;
    }
}

/* Banner轮播图文本覆盖层样式 - 覆盖其他样式 */
.carousel-item {
    position: relative !important;
    height: 600px !important;
}

.hero-slide-wrapper {
    position: relative !important;
    width: 100% !important;
    height: 600px !important;
    overflow: hidden !important;
    display: block !important;
}

.hero-slide-link {
    display: block !important;
    width: 100% !important;
    height: 100% !important;
    text-decoration: none !important;
    overflow: hidden !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    z-index: 1 !important;
}

.hero-slide-img {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    object-position: center !important;
    transition: transform 0.3s ease !important;
    display: block !important;
}

.hero-slide-content {
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    text-align: center !important;
    z-index: 100 !important;
    max-width: 80% !important;
    padding: 40px 60px !important;
    background: rgba(0, 0, 0, 0.4) !important;
    border-radius: 15px !important;
    backdrop-filter: blur(5px) !important;
    -webkit-backdrop-filter: blur(5px) !important;
    pointer-events: none !important;
    width: fit-content !important;
}

.hero-slide-title {
    color: #ffffff !important;
    font-size: 2.5rem !important;
    font-weight: 700 !important;
    margin-bottom: 20px !important;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7) !important;
    line-height: 1.2 !important;
}

.hero-slide-description {
    color: #ffffff !important;
    font-size: 1.1rem !important;
    line-height: 1.6 !important;
    margin: 0 !important;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.7) !important;
    opacity: 0.95 !important;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .carousel-item {
        height: 550px !important;
    }
    
    .hero-slide-wrapper {
        height: 550px !important;
    }
    
    .hero-slide-title {
        font-size: 2.2rem !important;
    }
    
    .hero-slide-description {
        font-size: 1rem !important;
    }
}

@media (max-width: 992px) {
    .carousel-item {
        height: 500px !important;
    }
    
    .hero-slide-wrapper {
        height: 500px !important;
    }
    
    .hero-slide-content {
        max-width: 85% !important;
        padding: 30px 40px !important;
    }
    
    .hero-slide-title {
        font-size: 2rem !important;
        margin-bottom: 15px !important;
    }
    
    .hero-slide-description {
        font-size: 0.95rem !important;
    }
}

@media (max-width: 768px) {
    .carousel-item {
        height: 450px !important;
    }
    
    .hero-slide-wrapper {
        height: 450px !important;
    }
    
    .hero-slide-content {
        max-width: 90% !important;
        padding: 25px 30px !important;
    }
    
    .hero-slide-title {
        font-size: 1.6rem !important;
        margin-bottom: 12px !important;
    }
    
    .hero-slide-description {
        font-size: 0.9rem !important;
        line-height: 1.4 !important;
    }
}

@media (max-width: 576px) {
    .carousel-item {
        height: 400px !important;
    }
    
    .hero-slide-wrapper {
        height: 400px !important;
    }
    
    .hero-slide-content {
        max-width: 95% !important;
        padding: 20px 25px !important;
    }
    
    .hero-slide-title {
        font-size: 1.4rem !important;
        margin-bottom: 10px !important;
    }
    
    .hero-slide-description {
        font-size: 0.85rem !important;
        line-height: 1.3 !important;
    }
}