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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #343a40;
    background-color: #ffffff;
}

.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);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 123, 255, 0.1);
}

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

.nav-logo h2 {
    color: #007bff;
    font-weight: 700;
    font-size: 1.8rem;
}

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

.nav-link {
    text-decoration: none;
    color: #343a40;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #007bff;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #007bff;
    transition: width 0.3s ease;
}

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

.nav-cta .cta-button {
    background: #007bff;
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-cta .cta-button:hover {
    background: #0056b3;
    transform: translateY(-2px);
}

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

.bar {
    width: 25px;
    height: 3px;
    background-color: #343a40;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主页区域样式 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.brand-name {
    color: #007bff;
    display: block;
}

.hero-subtitle {
    color: #343a40;
    display: block;
    font-size: 2.5rem;
}

.hero-description {
    font-size: 1.2rem;
    color: #6c757d;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #007bff;
    font-weight: 500;
}

.feature-item i {
    font-size: 1.2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.primary-button {
    background: #007bff;
    color: white;
    padding: 1rem 2rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.primary-button:hover {
    background: #0056b3;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 123, 255, 0.3);
}

.secondary-button {
    background: transparent;
    color: #007bff;
    padding: 1rem 2rem;
    border: 2px solid #007bff;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.secondary-button:hover {
    background: #007bff;
    color: white;
    transform: translateY(-3px);
}

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

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 通用区域样式 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #343a40;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: #6c757d;
    max-width: 600px;
    margin: 0 auto;
}

/* 服务内容区域样式 */
.services {
    padding: 80px 0;
    background: #ffffff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.service-card {
    background: #f8f9fa;
    padding: 2.5rem 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    background: #ffffff;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.service-icon i {
    font-size: 2rem;
    color: white;
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #343a40;
    margin-bottom: 1rem;
}

.service-card p {
    color: #6c757d;
    line-height: 1.8;
}

.success-stories {
    margin-top: 4rem;
}

.success-stories h3 {
    text-align: center;
    font-size: 2rem;
    color: #343a40;
    margin-bottom: 2rem;
}

.stories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.story-card {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    padding: 2rem;
    border-radius: 15px;
    position: relative;
    overflow: hidden;
}

.story-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 6rem;
    opacity: 0.2;
    font-family: serif;
}

.story-content h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.story-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.story-stats {
    display: flex;
    gap: 1rem;
}

.stat {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

/* 关于我们区域样式 */
.about {
    padding: 80px 0;
    background: #f8f9fa;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-description p {
    margin-bottom: 1.5rem;
    color: #6c757d;
    line-height: 1.8;
}

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

.about-feature {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.about-feature i {
    font-size: 2.5rem;
    color: #007bff;
    margin-bottom: 1rem;
}

.about-feature h4 {
    font-weight: 700;
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: #343a40;
}

.about-feature p {
    color: #868e96;
    line-height: 1.6;
    font-size: 1rem;
}

/* 保持 .about-stats 不变 */
.about-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: #007bff;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #6c757d;
    font-weight: 500;
}

/* 联系我们区域样式 */
.contact {
    padding: 80px 0;
    background: #ffffff;
}

.contact-content {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: center;
}

.submit-button:hover {
    background: #0056b3;
    transform: translateY(-2px);
}

.faq {
    margin-top: 4rem;
}

.faq h3 {
    text-align: center;
    font-size: 2rem;
    color: #343a40;
    margin-bottom: 2rem;
}

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

.faq-item {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    border-left: 4px solid #007bff;
}

.faq-item h4 {
    color: #343a40;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.faq-item p {
    color: #6c757d;
    line-height: 1.8;
    margin: 0;
}

/* 底部样式 */
.footer {
    background: #343a40;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
    align-items: center;
}

.footer-logo h3 {
    color: #007bff;
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    color: #adb5bd;
}

.footer-links {
    display: flex;
    gap: 2rem;
    justify-content: center;
}

.footer-links a {
    color: #adb5bd;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #007bff;
}



.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #495057;
    color: #adb5bd;
}

.footer-bottom a {
    color: #007bff;
    text-decoration: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        /* left: -100%; */
        right: -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; */
        right: 0;
    }
    
    .nav-cta {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 2rem;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-features {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1rem;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .stories-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .primary-button,
    .secondary-button {
        width: 100%;
        text-align: center;
    }
}