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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
}

.brand-name {
    font-size: 24px;
    font-weight: 600;
    color: #1a73e8;
    text-decoration: none;
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-size: 16px;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #1a73e8;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #1a73e8;
    transition: width 0.3s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 首页轮播区域 */
.hero-section {
    height: 100vh;
    position: relative;
    overflow: hidden;
    margin-top: 80px;
}

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

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    z-index: -1;
}

.slide-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.hero-left {
    flex: 1;
    max-width: 600px;
}

.hero-right {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-graphics {
    position: relative;
    width: 400px;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    font-weight: 500;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    animation: float 3s ease-in-out infinite;
    transition: all 0.3s ease;
}

.floating-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
}

.floating-card i {
    font-size: 24px;
    color: #ffd700;
}

.card-1 {
    top: 20px;
    right: 20px;
    animation-delay: 0s;
}

.card-2 {
    top: 100px;
    left: 20px;
    animation-delay: 1s;
}

.card-3 {
    bottom: 80px;
    right: 40px;
    animation-delay: 2s;
}

.central-graphic {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
}

.pulse-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.center-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: #ffd700;
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    animation: rotate 10s linear infinite;
}

.orbit-1 {
    width: 120px;
    height: 120px;
    animation-duration: 8s;
}

.orbit-2 {
    width: 160px;
    height: 160px;
    animation-duration: 12s;
    animation-direction: reverse;
}

.orbit-3 {
    width: 200px;
    height: 200px;
    animation-duration: 16s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.2); opacity: 0; }
}

@keyframes rotate {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.slide-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
}

.slide-content p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

.btn-primary,
.btn-secondary {
    padding: 15px 40px;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: #fff;
    color: #1a73e8;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

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

.btn-secondary:hover {
    background: #fff;
    color: #1a73e8;
    transform: translateY(-2px);
}

/* 通用区域样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 18px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 产品服务区域 */
.products-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.product-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    transition: all 0.3s ease;
}

.product-card:nth-child(1) .product-icon {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
}

.product-card:nth-child(2) .product-icon {
    background: linear-gradient(135deg, #4ecdc4, #44a08d);
}

.product-card:nth-child(3) .product-icon {
    background: linear-gradient(135deg, #45b7d1, #2196f3);
}

.product-card:nth-child(4) .product-icon {
    background: linear-gradient(135deg, #f9ca24, #f0932b);
}

.product-card:nth-child(5) .product-icon {
    background: linear-gradient(135deg, #6c5ce7, #a55eea);
}

.product-card:nth-child(6) .product-icon {
    background: linear-gradient(135deg, #00b894, #00cec9);
}

.product-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.product-card p {
    color: #666;
    line-height: 1.6;
}

/* 核心优势区域 */
.advantages-section {
    padding: 100px 0;
    background: white;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.advantage-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 30px;
    border-radius: 15px;
    background: #f8f9fa;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    background: linear-gradient(135deg, #1a73e8, #4285f4);
    color: white;
    transform: translateY(-5px);
}

.advantage-card:hover h3,
.advantage-card:hover p {
    color: white;
}

.advantage-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.advantage-card:nth-child(1) .advantage-icon {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.advantage-card:nth-child(2) .advantage-icon {
    background: linear-gradient(135deg, #3498db, #2980b9);
}

.advantage-card:nth-child(3) .advantage-icon {
    background: linear-gradient(135deg, #2ecc71, #27ae60);
}

.advantage-card:nth-child(4) .advantage-icon {
    background: linear-gradient(135deg, #f39c12, #e67e22);
}

.advantage-card:nth-child(5) .advantage-icon {
    background: linear-gradient(135deg, #9b59b6, #8e44ad);
}

.advantage-card:nth-child(6) .advantage-icon {
    background: linear-gradient(135deg, #1abc9c, #16a085);
}

.advantage-card:hover .advantage-icon {
    background: white;
    color: #1a73e8;
}

.advantage-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.advantage-card p {
    color: #666;
    line-height: 1.6;
}

/* 关于我们区域 */
.about-section {
    padding: 100px 0;
    background: #f8f9fa;
}

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

.about-text h2 {
    font-size: 36px;
    font-weight: 600;
    color: #333;
    margin-bottom: 30px;
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 20px;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

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

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: #1a73e8;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    color: #666;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    color: #1a73e8;
}

/* 页脚样式 */
.footer {
    background: #1a1a1a;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

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

.footer-logo {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    margin-bottom: 15px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.brand-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

.brand-text h3 {
    margin: 0 0 5px 0;
    color: #1a73e8;
    font-size: 20px;
}

.brand-text p {
    margin: 0;
    color: #666;
    font-size: 14px;
}

.footer-brand p {
    color: #ccc;
    margin-bottom: 20px;
}

.footer-info p {
    color: #ccc;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-info i {
    color: #1a73e8;
    width: 20px;
}

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #fff;
}

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

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

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #1a73e8;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.icp-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #333;
}

.icp-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #ccc;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.icp-link:hover {
    color: #1a73e8;
    background: rgba(26, 115, 232, 0.1);
    border-color: rgba(26, 115, 232, 0.3);
    transform: translateY(-2px);
}

.icp-link i {
    font-size: 16px;
    color: #1a73e8;
}

.icp-link:hover i {
    color: #1a73e8;
    transform: scale(1.1);
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #1a73e8;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .slide-content {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }
    
    .hero-left {
        max-width: 100%;
        margin-bottom: 30px;
    }
    
    .hero-right {
        width: 100%;
        height: 300px;
    }
    
    .hero-graphics {
        width: 300px;
        height: 300px;
    }
    
    .floating-card {
        padding: 15px;
        font-size: 14px;
    }
    
    .card-1 {
        top: 10px;
        right: 10px;
    }
    
    .card-2 {
        top: 60px;
        left: 10px;
    }
    
    .card-3 {
        bottom: 40px;
        right: 20px;
    }
    
    .central-graphic {
        width: 150px;
        height: 150px;
    }
    
    .slide-content h1 {
        font-size: 32px;
    }
    
    .slide-content p {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        justify-content: space-around;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .icp-links {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 0 15px;
        height: 70px;
    }
    
    .hero-section {
        margin-top: 70px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .product-card,
    .advantage-card {
        padding: 25px 20px;
    }
}