/* 全局样式 */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-color: #333;
    --light-gray: #f5f6fa;
    --white: #ffffff;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

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

/* 导航栏样式 */
.navbar {
    background-color: var(--white);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo img {
    height: 50px;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li a {
    color: var(--primary-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.nav-links li a:hover {
    color: var(--secondary-color);
}

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 主页横幅样式 */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--white);
}

.hero-content {
    width: 100%;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.2s;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--secondary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
    animation: fadeInUp 1s ease 0.4s;
}

.cta-button:hover {
    background-color: #2980b9;
}

/* 产品展示样式 */
.products {
    padding: 5rem 0;
    background-color: var(--light-gray);
}

.products h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
    color: var(--primary-color);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 0 20px;
}

.product-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-card h3 {
    padding: 1rem;
    color: var(--primary-color);
}

.product-card p {
    padding: 0 1rem;
    margin-bottom: 1rem;
}

.product-link {
    display: inline-block;
    margin: 1rem;
    padding: 0.5rem 1rem;
    background-color: var(--secondary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.product-link:hover {
    background-color: #2980b9;
}

/* 解决方案样式 */
.solutions {
    padding: 5rem 0;
}

.solutions h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
    color: var(--primary-color);
}

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

.solution-item {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.solution-item i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.solution-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* 关于我们样式 */
.about {
    padding: 5rem 0;
    background-color: var(--light-gray);
}

.about h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
    color: var(--primary-color);
}

.about-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.about-text {
    flex: 1;
}

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

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

.stat-item h4 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

/* 联系我们样式 */
.contact {
    padding: 5rem 0;
    background-color: var(--light-gray);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.section-desc {
    color: #666;
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    max-width: 1100px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.info-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.info-icon {
    width: 50px;
    height: 50px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.info-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.info-content h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
}

.info-content .primary-info {
    color: var(--secondary-color);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.info-content .primary-info a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.info-content .primary-info a:hover {
    color: #2980b9;
}

.info-content .secondary-info {
    color: #666;
    font-size: 0.9rem;
}

.map-wrapper {
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.map-container {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 450px;
}

.location-map {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.map-overlay {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.95);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.map-info {
    text-align: center;
}

.map-info i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.map-info h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.map-info p {
    color: #666;
    margin-bottom: 1rem;
}

.map-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background-color: var(--secondary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.map-link:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.map-link i {
    font-size: 1rem;
    color: var(--white);
    margin: 0;
}

/* 页脚样式 */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
}

.footer-top {
    padding: 4rem 0 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer-logo img {
    height: 60px;
    margin-bottom: 1rem;
}

.brand-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    font-size: 0.95rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
}

.social-link {
    color: var(--white);
    font-size: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.social-link:hover {
    color: var(--secondary-color);
    transform: translateY(-3px);
}

.social-link .tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--white);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.social-link .tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--white);
}

.social-link:hover .tooltip {
    opacity: 1;
    visibility: visible;
    bottom: 140%;
}

.footer-links-group {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer-section h4 {
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background-color: var(--secondary-color);
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.footer-section ul li a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.contact-info ul li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.contact-info i {
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin-top: 0.2rem;
}

.contact-info p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    margin-bottom: 0.2rem;
}

.contact-info a,
.contact-info span {
    color: var(--white);
    text-decoration: none;
    font-size: 0.95rem;
}

.contact-info a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    padding: 1.5rem 0;
    background-color: rgba(0, 0, 0, 0.1);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.copyright {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-bottom-links a:hover {
    color: var(--secondary-color);
}

.icp {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-links-group {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-bottom-links {
        flex-direction: column;
        gap: 1rem;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }

    .map-container {
        min-height: 350px;
    }
    
    .map-overlay {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 480px) {
    .stats {
        grid-template-columns: 1fr;
    }

    .map-overlay {
        position: relative;
        top: 0;
        left: 0;
        transform: none;
        border-radius: 0;
    }
    
    .map-container {
        min-height: 300px;
    }
}