/* 全局样式 */
:root {
    --primary-color: #000;
    --secondary-color: #666;
    --text-color: #333;
    --light-bg: #f5f5f5;
    --white: #fff;
    --dark: #000;
    --accent-color: #ff6b00;
    --gradient-primary: linear-gradient(135deg, #000, #333);
    --gradient-dark: linear-gradient(135deg, #000, #333);
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
    font-size: 14px;
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 0;
    height: 80px;
    transition: all 0.3s;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 50px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 45px;
    transition: transform 0.3s;
}

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

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
    padding: 15px 0;
    display: flex;
    align-items: center;
    font-size: 16px;
    white-space: nowrap;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #007bff, #00ff88);
    transition: width 0.3s ease;
}

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

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

.nav-actions {
    display: flex;
    gap: 30px;
    align-items: center;
}

.search-btn {
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--text-color);
    transition: all 0.3s;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
}

.search-btn:hover {
    background-color: var(--light-bg);
    color: var(--primary-color);
}

/* 响应式导航 */
@media (max-width: 1200px) {
    .nav-links {
        gap: 35px;
    }
    
    .navbar .container {
        padding: 0 40px;
    }
}

@media (max-width: 992px) {
    .navbar {
        height: 70px;
    }
    
    .nav-links {
        display: none;
    }
    
    .nav-mobile-toggle {
        display: block;
        background: none;
        border: none;
        font-size: 1.5rem;
        color: var(--text-color);
        cursor: pointer;
        padding: 5px;
    }
    
    .mobile-nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        padding: 20px;
        transform: translateX(-100%);
        transition: transform 0.3s;
        z-index: 999;
        overflow-y: auto;
    }
    
    .mobile-nav.active {
        transform: translateX(0);
    }
    
    .mobile-nav .nav-links {
        display: flex;
        flex-direction: column;
        gap: 0;
    }
    
    .mobile-nav .nav-link {
        padding: 15px 0;
        border-bottom: 1px solid var(--light-bg);
        font-size: 16px;
    }
    
    .nav-actions {
        gap: 20px;
    }
}

@media (max-width: 576px) {
    .navbar {
        height: 64px;
    }
    
    .logo img {
        height: 40px;
    }
    
    .nav-actions {
        gap: 15px;
    }
    
    .search-btn {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .navbar .container {
        padding: 0 25px;
    }
}

/* 主内容区域 */
main {
    margin-top: 60px;
    padding-top: 0;
}

/* 轮播图样式优化 */
.hero {
    width: 100%;
    position: relative;
    background: #000;
    height: 100vh;
    overflow: hidden;
}

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

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: all 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide.active {
    opacity: 1;
    visibility: visible;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 100%);
    z-index: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7) contrast(1.1);
    transform: scale(1.2);
    transition: transform 8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide.active img {
    transform: scale(1);
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    z-index: 2;
    width: 90%;
    max-width: 1400px;
}

.slide-content h1 {
    font-size: 5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s cubic-bezier(0.4, 0, 0.2, 1) 0.3s;
    letter-spacing: 2px;
    background: linear-gradient(45deg, #fff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.slide-content h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #fff, transparent);
    opacity: 0;
    transition: all 1s ease 0.6s;
}

.slide.active .slide-content h1 {
    opacity: 1;
    transform: translateY(0);
}

.slide.active .slide-content h1::after {
    opacity: 1;
    width: 200px;
}

.slide-content p {
    font-size: 2rem;
    margin-bottom: 3rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s cubic-bezier(0.4, 0, 0.2, 1) 0.5s;
    font-weight: 300;
    letter-spacing: 1px;
}

.slide.active .slide-content p {
    opacity: 1;
    transform: translateY(0);
}

.slide-content .btn {
    display: inline-block;
    padding: 20px 50px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.4rem;
    font-weight: 600;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s cubic-bezier(0.4, 0, 0.2, 1) 0.7s;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    position: relative;
    overflow: hidden;
}

.slide-content .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.5s ease;
}

.slide-content .btn:hover::before {
    left: 100%;
}

.slide.active .slide-content .btn {
    opacity: 1;
    transform: translateY(0);
}

.slide-content .btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* 轮播图控制按钮优化 */
.prev-btn,
.next-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 3;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.prev-btn::before,
.next-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    transition: all 0.3s ease;
}

.prev-btn:hover::before,
.next-btn:hover::before {
    transform: rotate(225deg);
}

.prev-btn:hover,
.next-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #fff;
    transform: translateY(-50%) scale(1.1);
}

.prev-btn {
    left: 50px;
}

.next-btn {
    right: 50px;
}

/* 轮播图指示点优化 */
.slider-dots {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 20px;
    z-index: 3;
}

.dot {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.dot::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.8) 0%, transparent 70%);
    opacity: 0;
    transition: all 0.3s ease;
}

.dot:hover::before {
    border-color: rgba(255, 255, 255, 0.5);
}

.dot.active {
    background: #fff;
    transform: scale(1.2);
}

.dot.active::after {
    opacity: 1;
    animation: pulse 2s infinite;
}

.dot.active::before {
    border-color: rgba(255, 255, 255, 0.8);
}

@keyframes pulse {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.8;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.8;
    }
}

/* 添加科技感装饰元素 */
.slide::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(45deg, transparent 48%, rgba(255,255,255,0.1) 49%, rgba(255,255,255,0.1) 51%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(255,255,255,0.1) 49%, rgba(255,255,255,0.1) 51%, transparent 52%);
    background-size: 30px 30px;
    opacity: 0.1;
    z-index: 1;
}

/* 响应式优化 */
@media (max-width: 1200px) {
    .slide-content h1 {
        font-size: 4rem;
    }
    
    .slide-content p {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .slide-content h1 {
        font-size: 3rem;
    }
    
    .slide-content p {
        font-size: 1.4rem;
    }
    
    .slide-content .btn {
        padding: 15px 40px;
        font-size: 1.2rem;
    }
    
    .prev-btn,
    .next-btn {
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 480px) {
    .slide-content h1 {
        font-size: 2.5rem;
    }
    
    .slide-content p {
        font-size: 1.2rem;
    }
    
    .prev-btn,
    .next-btn {
        width: 40px;
        height: 40px;
    }
}

/* 解决方案区域优化 */
.solutions {
    padding: 100px 0;
    background: #f8f9fa;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    padding: 0 20px;
}

.solution-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.solution-image {
    height: 250px;
    overflow: hidden;
}

.solution-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.solution-info {
    padding: 30px;
}

.solution-info h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #2d3436;
}

.solution-info p {
    color: #636e72;
    margin-bottom: 25px;
    line-height: 1.6;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-item i {
    color: #007bff;
    font-size: 1.2rem;
}

.solution-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
    text-align: center;
}

.stat-item {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #007bff;
    margin-bottom: 5px;
}

.stat-label {
    color: #636e72;
    font-size: 0.9rem;
}

/* 产品展示区域优化 */
.products {
    padding: 100px 0;
    background: #fff;
}

.section-title {
    font-size: 3.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: #007bff;
}

.product-categories {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.category-item {
    text-align: center;
    padding: 20px 30px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.category-item:hover,
.category-item.active {
    background: #007bff;
    color: #fff;
    transform: translateY(-5px);
}

.category-item h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    padding: 0 20px;
}

.product-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.product-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-tag {
    position: absolute;
    top: 20px;
    right: 20px;
    background: #ff4757;
    color: #fff;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.product-info {
    padding: 30px;
}

.product-info h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: #2d3436;
}

.product-info p {
    color: #636e72;
    margin-bottom: 25px;
    line-height: 1.6;
}

.btn-outline {
    display: inline-block;
    padding: 12px 30px;
    border: 2px solid #007bff;
    color: #007bff;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: #007bff;
    color: #fff;
}

/* 联系我们 */
.contact {
    padding: 120px 0;
    background-color: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.info-item i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.info-item h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary-color);
    font-weight: 600;
}

.info-item p {
    color: var(--secondary-color);
    line-height: 1.6;
}

.contact-form {
    background-color: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.form-group {
    margin-bottom: 25px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.3s;
    background-color: var(--light-bg);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: var(--white);
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

/* 页脚样式 */
.footer {
    background-color: #000;
    color: #fff;
    padding: 80px 0 30px;
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    font-size: 14px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    margin-bottom: 50px;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-logo {
    max-width: 160px;
}

.footer-logo img {
    width: 100%;
    margin-bottom: 25px;
    filter: brightness(0) invert(1);
    transition: transform 0.3s ease;
}

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

.footer-logo p {
    color: #999;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 50px;
}

.link-group h3 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 25px;
    font-weight: 500;
    position: relative;
    padding-bottom: 10px;
}

.link-group h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #007bff, #00ff88);
    transition: width 0.3s ease;
}

.link-group:hover h3::after {
    width: 50px;
}

.link-group a {
    display: block;
    color: #999;
    font-size: 14px;
    margin-bottom: 15px;
    transition: all 0.3s ease;
    text-decoration: none;
    line-height: 1.6;
    position: relative;
    padding-left: 0;
}

.link-group a:hover {
    color: #fff;
    padding-left: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    max-width: 1440px;
    margin: 0 auto;
    padding: 30px 20px 0;
}

.footer-subscribe h3 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 20px;
    font-weight: 500;
}

.footer-subscribe p {
    color: #999;
    font-size: 14px;
    margin-bottom: 25px;
    line-height: 1.6;
}

.subscribe-form {
    display: flex;
    gap: 10px;
    max-width: 400px;
}

.subscribe-form input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.05);
    color: #fff;
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.subscribe-form input:focus {
    outline: none;
    border-color: rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.1);
}

.subscribe-form button {
    padding: 12px 25px;
    background: linear-gradient(135deg, #007bff, #00ff88);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
}

.subscribe-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,123,255,0.3);
}

.footer-contact p {
    color: #999;
    font-size: 14px;
    margin-bottom: 12px;
    line-height: 1.6;
}

.footer-legal {
    color: #999;
    font-size: 12px;
    line-height: 1.6;
}

.footer-legal a {
    color: #999;
    margin-right: 25px;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-legal a:hover {
    color: #fff;
}

.footer-legal p {
    margin: 12px 0 0;
}

.footer-language {
    text-align: right;
}

.footer-language a {
    color: #999;
    margin-left: 25px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 14px;
    position: relative;
}

.footer-language a:hover {
    color: #fff;
}

.footer-language a.active {
    color: #fff;
    font-weight: 500;
}

.footer-language a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #007bff, #00ff88);
}

@media (max-width: 1200px) {
    .footer-content {
        gap: 60px;
        padding: 0 40px;
    }
    
    .footer-links {
        gap: 40px;
    }
    
    .footer-bottom {
        padding: 30px 40px 0;
    }
}

@media (max-width: 992px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .footer-bottom {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 20px 40px 0;
    }
    
    .footer-language {
        text-align: left;
    }
    
    .subscribe-form {
        max-width: 100%;
    }
}

@media (max-width: 576px) {
    .footer {
        padding: 60px 0 20px;
    }
    
    .footer-content {
        padding: 0 20px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .footer-content {
        gap: 30px;
    }
    
    .link-group h3 {
        margin-bottom: 20px;
    }
    
    .link-group a {
        margin-bottom: 12px;
    }
    
    .footer-bottom {
        padding: 20px 20px 0;
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .solution-grid,
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .solution-image,
    .product-image {
        height: 220px;
    }
}

@media (max-width: 992px) {
    .solutions,
    .products {
        padding: 80px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 0.95rem;
        margin-bottom: 35px;
    }
    
    .solution-image,
    .product-image {
        height: 200px;
    }
    
    .solution-info,
    .product-info {
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 8px 0;
        height: 50px;
    }
    
    .logo img {
        height: 30px;
    }
    
    .nav-links {
        gap: 15px;
    }
    
    .hero {
        padding: 80px 0 50px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat-item {
        min-width: 120px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .stat-label {
        font-size: 0.9rem;
    }
    
    .solution-grid,
    .product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .solution-info,
    .product-info {
        padding: 20px;
    }
    
    .solution-image,
    .product-image {
        height: 220px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    main {
        margin-top: 60px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 0.9rem;
    }
    
    .stat-number {
        font-size: 1.6rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
        margin-bottom: 30px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 13px;
    }
    
    .solution-image,
    .product-image {
        height: 200px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* 动画效果 */
[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
}

[data-aos="fade-up"] {
    transform: translateY(20px);
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-right"] {
    transform: translateX(-20px);
}

[data-aos="fade-right"].aos-animate {
    opacity: 1;
    transform: translateX(0);
}

[data-aos="fade-left"] {
    transform: translateX(20px);
}

[data-aos="fade-left"].aos-animate {
    opacity: 1;
    transform: translateX(0);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
}

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

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

/* 服务支持 */
.services {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-image {
    height: 250px;
    overflow: hidden;
}

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

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

.service-info {
    padding: 30px;
}

.service-info h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 15px;
}

.service-info p {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-features {
    margin: 20px 0;
}

.service-features .feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    color: #666;
    font-size: 14px;
}

.service-features .feature-item i {
    color: #28a745;
    font-size: 16px;
}

.service-info .btn {
    width: 100%;
    text-align: center;
    margin-top: 20px;
}

@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .services {
        padding: 60px 0;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .service-image {
        height: 200px;
    }
    
    .service-info {
        padding: 20px;
    }
    
    .service-info h3 {
        font-size: 20px;
    }
    
    .service-info p {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .service-image {
        height: 180px;
    }
    
    .service-features .feature-item {
        font-size: 13px;
    }
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background-color: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-top: 40px;
}

.about-text h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: 600;
}

.about-text p {
    color: var(--secondary-color);
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 1rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
    padding: 30px;
    background: var(--light-bg);
    border-radius: 15px;
}

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

.about-stats .stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.about-stats .stat-label {
    font-size: 1rem;
    color: var(--secondary-color);
}

.about-image {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

/* 响应式调整 */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .about-image {
        order: -1;
    }
    
    .about-text h3 {
        font-size: 1.8rem;
    }
    
    .about-stats {
        gap: 20px;
        padding: 20px;
    }
    
    .about-stats .stat-number {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .about-stats {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .about-text h3 {
        font-size: 1.5rem;
    }
    
    .about-stats .stat-number {
        font-size: 1.8rem;
    }
}

/* 新闻网格 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.news-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.news-card:hover {
    transform: translateY(-10px);
}

.news-image {
    height: 200px;
    overflow: hidden;
}

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

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

.news-content {
    padding: 20px;
}

.news-content h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.news-content p {
    color: var(--secondary-color);
    margin-bottom: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .solution-content,
    .product-content,
    .service-content,
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
}

/* 新闻中心 */
.news {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.news-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.news-card:hover {
    transform: translateY(-10px);
}

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

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

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

.news-tag {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
}

.news-content {
    padding: 30px;
}

.news-content h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
    line-height: 1.4;
}

.news-date {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.news-desc {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}