/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1e293b;
    background-color: #ffffff;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

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

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

.nav-brand img {
    height: 40px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
}

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

.nav-link {
    text-decoration: none;
    color: #475569;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #1e40af;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #1e40af;
}

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

.bar {
    width: 25px;
    height: 3px;
    background: #1e293b;
    margin: 3px 0;
    transition: 0.3s;
}

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
    margin-top: 70px;
}

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

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

/* Solutions Section Styles */
.solutions-hero {
    padding: 4rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    overflow: hidden;
}

.solutions-hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: url('images/gongsi3.png') no-repeat center center;
    background-size: contain;
    opacity: 0.1;
    z-index: 0;
}

.solutions-hero .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero-text h2 {
    font-size: 2.8rem;
    margin-bottom: 2rem;
    color: #1e40af;
    font-weight: 700;
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
}

.hero-text h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, #1e40af, #3b82f6);
    border-radius: 2px;
}

/* Hero Description Styles */
.hero-description {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-description:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.hero-description p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    color: #333;
}

.hero-description .feature-list {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.hero-description .feature-list li {
    position: relative;
    padding-left: 1.8rem;
    margin-bottom: 0.8rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #555;
}

.hero-description .feature-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #3b82f6;
    font-size: 1.5rem;
    line-height: 1;
}

/* Equipment Config Styles */
.equipment-config {
    margin-top: 2rem;
}

.equipment-config h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #1e40af;
    font-weight: 600;
}

.equipment-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.equipment-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    transition: background 0.3s ease;
}

.equipment-list li:hover {
    background: #e3f2fd;
}

.equipment-item {
    font-weight: 500;
    color: #333;
}

.equipment-count {
    font-weight: 600;
    color: #1e40af;
}

/* Case Study Styles */
.case-study {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    margin-bottom: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.case-study::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, #1e40af, #3b82f6);
}

.case-study h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #1e40af;
    font-weight: 600;
    padding-left: 1rem;
}

.case-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.case-stat {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.case-stat:hover {
    transform: translateY(-5px);
}

.case-stat .stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 0.5rem;
}

.case-stat .stat-label {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.3;
}

.case-content p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: #333;
    margin-bottom: 1rem;
}

.note {
    font-style: italic;
    color: #666;
    font-size: 0.95rem;
    background: #f8f9fa;
    padding: 0.8rem;
    border-radius: 6px;
    margin-top: 1rem;
}

/* Recommendations Styles */
.recommendations {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.recommendations h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #1e40af;
    font-weight: 600;
}

.recommendation-content p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: #333;
    margin-bottom: 1.5rem;
}

.recommendation-highlight {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border-left: 4px solid #3b82f6;
}

.recommendation-highlight h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #1e40af;
    font-weight: 600;
}

.benefits-list {
    list-style: none;
    padding: 0;
}

.benefits-list li {
    position: relative;
    padding-left: 1.8rem;
    margin-bottom: 0.8rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #333;
}

.benefits-list li i {
    position: absolute;
    left: 0;
    color: #10b981;
}

.additional-equipment {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 1.5rem;
}

.additional-equipment h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #1e40af;
    font-weight: 600;
}

.additional-equipment ul {
    list-style: none;
    padding: 0;
    margin-bottom: 1rem;
}

.additional-equipment ul li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: 1rem;
    color: #555;
}

.additional-equipment ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #3b82f6;
    font-size: 1.2rem;
    line-height: 1;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .solutions-hero {
        padding: 3rem 0;
    }
    
    .hero-text h2 {
        font-size: 2rem;
    }
    
    .case-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .equipment-list {
        grid-template-columns: 1fr;
    }
    
    .case-study, .recommendations {
        padding: 1.5rem;
    }
}

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

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e40af;
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    color: #64748b;
    margin-top: 0.5rem;
}

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

.image-placeholder {
    width: 400px;
    height: 300px;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    box-shadow: 0 10px 30px rgba(30, 64, 175, 0.3);
}

.image-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.image-placeholder span {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Solutions Section */
.solutions-section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: #64748b;
}

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

.solution-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.card-header {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: white;
    padding: 2rem;
    text-align: center;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.card-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.card-header p {
    opacity: 0.9;
}

.card-content {
    padding: 2rem;
}

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

.feature-list li {
    padding: 0.5rem 0;
    color: #475569;
    display: flex;
    align-items: center;
}

.feature-list li i {
    color: #10b981;
    margin-right: 0.75rem;
    font-size: 0.875rem;
}

.case-highlight {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 10px;
    border-left: 4px solid #1e40af;
}

.case-highlight h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 0.25rem;
}

.case-highlight p {
    font-size: 0.875rem;
    color: #64748b;
}

/* Advantages Section */
.advantages-section {
    padding: 80px 0;
    background: #f8fafc;
}

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

.advantage-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-3px);
}

.advantage-icon {
    font-size: 2.5rem;
    color: #1e40af;
    margin-bottom: 1rem;
}

.advantage-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.advantage-item p {
    color: #64748b;
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: white;
    text-align: center;
}

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

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

.cta-button {
    display: inline-flex;
    align-items: center;
    background: white;
    color: #1e40af;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.cta-button i {
    margin-right: 0.5rem;
}

/* Footer */
.footer {
    background: #1e293b;
    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;
    font-weight: 600;
}

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

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

.footer-section ul li a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #3b82f6;
}

.footer-section p {
    color: #cbd5e1;
    margin-bottom: 0.5rem;
}

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

.social-links a {
    color: #cbd5e1;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #3b82f6;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #334155;
    color: #64748b;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .solutions-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .image-placeholder {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .page-header {
        padding: 100px 0 60px;
    }
    
    .solutions-hero,
    .solutions-section,
    .advantages-section,
    .cta-section {
        padding: 60px 0;
    }
    
    .hero-text h2,
    .section-header h2,
    .cta-content h2 {
        font-size: 1.75rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* Contact Page Styles */
.contact-info {
    padding: 80px 0;
    background: #f8fafc;
}

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

.info-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.info-icon {
    font-size: 2.5rem;
    color: #1e40af;
    margin-bottom: 1.5rem;
}

.info-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.info-card p {
    color: #64748b;
    line-height: 1.8;
}

/* Contact Form */
.contact-form {
    padding: 80px 0;
    background: white;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
}

.form-header {
    text-align: center;
    margin-bottom: 3rem;
}

.form-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.form-header p {
    font-size: 1.125rem;
    color: #64748b;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1e40af;
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    margin-right: 0.5rem;
    width: auto;
}

.checkbox-label span {
    color: #64748b;
    font-size: 0.875rem;
}

.checkbox-label a {
    color: #1e40af;
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
    grid-column: 1 / -1;
    justify-self: center;
}

.form-message {
    margin-top: 2rem;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
}

.success-message {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
}

.success-message i {
    font-size: 3rem;
    color: #22c55e;
    margin-bottom: 1rem;
}

.success-message h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Regional Offices */
.regional-offices {
    padding: 60px 0;
    background-color: #f9f9f9;
}

.regional-offices h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 2.5rem;
    position: relative;
}

.regional-offices h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background-color: #3498db;
    margin: 15px auto 0;
}

.distribution-content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    align-items: center;
    justify-content: center;
}

.distribution-text {
    flex: 1;
    min-width: 300px;
    max-width: 600px;
}

.distribution-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    margin: 0;
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.distribution-map {
    flex: 1;
    min-width: 300px;
    max-width: 600px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.network-map {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.network-map:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .distribution-content {
        flex-direction: column;
    }
    
    .distribution-text,
    .distribution-map {
        max-width: 100%;
    }
    
    .distribution-text p {
        padding: 15px;
        font-size: 1rem;
    }
    
    .regional-offices h2 {
        font-size: 2rem;
    }
}

/* Service Support */
.service-support {
    padding: 80px 0;
    background: white;
}

.service-support h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 3rem;
}

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

.support-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.support-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.support-icon {
    font-size: 2.5rem;
    color: #1e40af;
    margin-bottom: 1.5rem;
}

.support-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.support-card p {
    color: #64748b;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.support-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: #1e40af;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.support-btn:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

/* Responsive Design for Contact Page */
@media (min-width: 992px) {
    .info-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
    }
    
    .info-card {
        padding: 2.5rem 1.5rem;
    }
    
    .support-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
    }
    
    .support-card {
        padding: 2.5rem 1.5rem;
    }
}

@media (min-width: 1200px) {
    .info-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
    }
    
    .info-card {
        padding: 2.5rem;
    }
    
    .support-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
    }
    
    .support-card {
        padding: 2.5rem;
    }
}

@media (max-width: 991px) {
    .info-grid,
    .support-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 576px) {
    .info-grid,
    .support-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .info-card,
    .support-card {
        padding: 2rem;
    }
}
/* 首页专用样式 */
/* Hero区域样式 */
.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

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

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-slide.active {
    opacity: 1;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.8), rgba(59, 130, 246, 0.6));
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    animation: fadeInUp 1s ease-out;
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 4;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s ease;
}

.indicator.active {
    background: white;
}

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

/* 价值主张区域 */
.value-props {
    padding: 100px 0;
    background: #f8fafc;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: #64748b;
}

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

.value-item {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.value-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.value-icon {
    font-size: 3rem;
    color: #1e40af;
    margin-bottom: 1.5rem;
}

.value-item h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.value-item p {
    color: #64748b;
    line-height: 1.6;
}

/* 数据统计区域 */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: block;
}

.stat-label {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* 产品预览区域 */
.products-preview {
    padding: 100px 0;
    background: white;
}

.products-preview .products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.products-preview .product-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.products-preview .product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.products-preview .product-image {
    position: relative;
    overflow: hidden;
}

.products-preview .product-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.products-preview .product-content {
    padding: 2rem;
}

.products-preview .product-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.products-preview .product-content p {
    color: #64748b;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

/* 合作伙伴区域 */
.partners {
    padding: 80px 0;
    background: #f8fafc;
}

.partners-marquee {
    overflow: hidden;
    position: relative;
}

.partners-track {
    display: flex;
    gap: 3rem;
    animation: scroll 30s linear infinite;
}

.partner-logo {
    flex-shrink: 0;
    width: 170px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.partner-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* 产品页面专用样式 */
.product-nav {
    padding: 60px 0 0;
    background: white;
}

.product-categories {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.category-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid #e2e8f0;
    background: white;
    color: #64748b;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-btn:hover,
.category-btn.active {
    background: #1e40af;
    color: white;
    border-color: #1e40af;
}

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

.product-section.bg-light {
    background: linear-gradient(135deg, #83c5fc, #3b82f6);
    color: white;
}

.product-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 3rem;
}

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

.product-section .product-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-section .product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.product-section .product-image {
    position: relative;
    overflow: hidden;
}

.product-section .product-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: #ef4444;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.product-content {
    padding: 2rem;
}

.product-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.product-desc {
    color: #64748b;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

.product-features li {
    padding: 0.5rem 0;
    color: #475569;
    display: flex;
    align-items: center;
}

.product-features li::before {
    content: '✓';
    color: #10b981;
    margin-right: 0.75rem;
    font-weight: bold;
}

.product-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.spec-item {
    background: #f1f5f9;
    padding: 0.5rem 1rem;
    border-radius: 15px;
    font-size: 0.875rem;
    color: #475569;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: #1e40af;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #1e40af;
    border: 2px solid #1e40af;
}

.btn-outline:hover {
    background: #1e40af;
    color: white;
}

/* 动画效果 */
.product-card.animate-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: #1e40af;
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    transform: translateY(100px);
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.back-to-top.show {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content p {
        font-size: 1.25rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .product-categories {
        flex-direction: column;
        align-items: center;
    }
    
    .product-section .products-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-track {
        animation: scroll 20s linear infinite;
    }
    
    .back-to-top {
        bottom: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1.125rem;
    }
    
    .value-item,
    .product-section .product-content {
        padding: 1.5rem;
    }
    
    .back-to-top {
        bottom: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}