/* Global Styles */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-color: #1f2937;
    --light-text: #6b7280;
    --background: #ffffff;
    --light-background: #f3f4f6;
    --border-color: #e5e7eb;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    padding-top: 80px; /* 为固定导航栏留出空间 */
}

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

/* Navigation */
.navbar {
    background: var(--background);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

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

.logo img {
    height: 40px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-color);
    transition: 0.3s;
}

/* Hero Sections */
.hero,
.about-hero,
.services-hero,
.contact-hero,
.terms-hero,
.privacy-hero {
    background: linear-gradient(rgba(37, 99, 235, 0.9), rgba(30, 64, 175, 0.9)),
                url('../images/hero-bg.jpg') center/cover;
    height: 50vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: white;
    padding-top: 80px;
}

.hero h1,
.about-hero h1,
.services-hero h1,
.contact-hero h1,
.terms-hero h1,
.privacy-hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero p,
.about-hero p,
.services-hero p,
.contact-hero p,
.terms-hero p,
.privacy-hero p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

/* Contact Page Styles */
.contact-info {
    padding: 5rem 0;
    background: var(--light-background);
}

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

.info-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.info-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-form-section {
    padding: 5rem 0;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
}

.submit-button {
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.submit-button:hover {
    background: var(--secondary-color);
}

/* Terms and Privacy Pages Styles */
.terms-content,
.privacy-content {
    padding: 5rem 0;
}

.terms-section,
.privacy-section {
    margin-bottom: 3rem;
}

.terms-section h2,
.privacy-section h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.terms-section h3,
.privacy-section h3 {
    color: var(--text-color);
    margin: 1.5rem 0 1rem;
}

.terms-section ul,
.privacy-section ul {
    list-style-position: inside;
    margin-left: 1rem;
}

.terms-section li,
.privacy-section li {
    margin-bottom: 0.5rem;
}

/* Map Section */
.map-section {
    padding: 5rem 0;
    background: var(--light-background);
}

.map-container {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Notification Styles */
.notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 1rem 2rem;
    border-radius: 5px;
    color: white;
    font-weight: 500;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

.notification.success {
    background: #10b981;
}

.notification.error {
    background: #ef4444;
}

/* Footer */
footer {
    background: var(--text-color);
    color: white;
    padding: 4rem 0 2rem;
}

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

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

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

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

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

.footer-section a:hover {
    color: var(--accent-color);
}

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

.social-links a {
    color: white;
    font-size: 1.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero h1,
    .about-hero h1,
    .services-hero h1,
    .contact-hero h1,
    .terms-hero h1,
    .privacy-hero h1 {
        font-size: 2.5rem;
    }

    .hero p,
    .about-hero p,
    .services-hero p,
    .contact-hero p,
    .terms-hero p,
    .privacy-hero p {
        font-size: 1.2rem;
    }

    .form-container {
        padding: 2rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.service-card,
.feature,
.info-card {
    animation: fadeIn 0.5s ease-out forwards;
}

/* Services Overview Section */
.services-overview {
    padding: 5rem 0;
    background: var(--light-background);
}

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

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Why Choose Us Section */
.why-us {
    padding: 5rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    text-align: center;
    padding: 2rem;
}

.feature i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Company Overview Section */
.company-overview {
    padding: 5rem 0;
    background: var(--light-background);
}

.overview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.overview-text h2 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.overview-text p {
    margin-bottom: 1rem;
}

.overview-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Our Values Section */
.our-values {
    padding: 5rem 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.value-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.value-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Team Section */
.team-section {
    padding: 5rem 0;
    background: var(--light-background);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.team-member {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.team-member img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin-bottom: 1rem;
    object-fit: cover;
}

/* Service Details Section */
.service-details {
    padding: 5rem 0;
}

.service-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 5rem;
    align-items: center;
}

.service-item.reverse {
    direction: rtl;
}

.service-item.reverse .service-content {
    direction: ltr;
}

.service-content h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.service-content ul {
    list-style-position: inside;
    margin: 1rem 0;
}

.service-content li {
    margin-bottom: 0.5rem;
}

.service-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Process Section */
.process-section {
    padding: 5rem 0;
    background: var(--light-background);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: bold;
}

/* Section Headers */
section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

section p {
    text-align: center;
    color: var(--light-text);
    max-width: 800px;
    margin: 0 auto;
}

/* Responsive Design */
@media (max-width: 768px) {
    .overview-content,
    .service-item {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .service-item.reverse {
        direction: ltr;
    }

    section h2 {
        font-size: 2rem;
    }

    .service-card,
    .feature,
    .value-card,
    .team-member,
    .step {
        padding: 1.5rem;
    }
}

/* Call to Action Section */
.cta-section {
    padding: 5rem 0;
    background: linear-gradient(rgba(37, 99, 235, 0.9), rgba(30, 64, 175, 0.9)),
                url('../images/hero-bg.jpg') center/cover;
    color: white;
    text-align: center;
    margin-bottom: 5rem; /* 添加底部间距 */
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: white;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    padding: 1rem 2.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: 2px solid white;
}

.cta-button:hover {
    background: transparent;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .cta-section {
        padding: 4rem 0;
        margin-bottom: 3rem;
    }

    .cta-section h2 {
        font-size: 2rem;
    }

    .cta-section p {
        font-size: 1.1rem;
    }

    .cta-button {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
}