/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

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

/* 导航栏 */
.navbar {
    background: linear-gradient(135deg, #4CAF50 0%, #2E7D32 100%);
    color: white;
    padding: 1rem 0;
    position: sticky;
    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;
}

.logo a {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
}

.logo svg {
    transition: transform 0.3s ease;
}

.logo a:hover svg {
    transform: scale(1.1) rotate(5deg);
}

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

.nav-menu a {
    color: white;
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: rgba(255, 255, 255, 0.2);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: white;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主横幅 */
.hero {
    position: relative;
    color: white;
    padding: 150px 20px;
    text-align: center;
    background-size: cover;
    background-position: center;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(46, 125, 50, 0.7);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    animation: fadeInDown 1s;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    animation: fadeIn 1.5s;
    flex-wrap: wrap;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 14px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: bold;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: white;
    color: #4CAF50;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

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

.btn-secondary:hover {
    background: white;
    color: #4CAF50;
}

.btn-link {
    color: #4CAF50;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-link:hover {
    color: #2E7D32;
    transform: translateX(5px);
}

/* 章节标题 */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #4CAF50 0%, #2E7D32 100%);
    border-radius: 2px;
}

/* 特色服务 */
.features {
    padding: 80px 20px;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    text-align: center;
    padding: 2.5rem 2rem;
    border-radius: 15px;
    background: white;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    border-color: #4CAF50;
}

.feature-card .icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #4CAF50;
}

.feature-card p {
    color: #666;
    line-height: 1.8;
}

/* 服务项目 */
.services-section {
    padding: 80px 20px;
    background: #f8f9fa;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.service-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.service-image {
    width: 100%;
    height: 280px;
    object-fit: cover;
    display: block;
}

.service-info {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.service-info p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
    flex-grow: 1;
}

.service-info .price {
    font-size: 1.8rem;
    font-weight: bold;
    color: #4CAF50;
    display: block;
    margin-bottom: 1.5rem;
}

/* 案例展示 */
.cases-preview {
    padding: 80px 20px;
    background: white;
}

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

.case-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.case-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.case-info {
    padding: 1.5rem;
}

.case-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: #333;
}

.case-tags {
    margin-bottom: 0.8rem;
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    background: #E8F5E9;
    color: #4CAF50;
    border-radius: 15px;
    font-size: 0.85rem;
    margin-right: 0.5rem;
}

.case-desc {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 服务流程 */
.process-section {
    padding: 80px 20px;
    background: #f8f9fa;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    flex-wrap: wrap;
    gap: 1rem;
}

.process-step {
    text-align: center;
    flex: 1;
    min-width: 150px;
    padding: 1.5rem;
}

.step-number {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #4CAF50 0%, #2E7D32 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: bold;
    margin: 0 auto 1rem;
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.3);
}

.process-step h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.process-step p {
    color: #666;
    font-size: 0.95rem;
}

.process-arrow {
    font-size: 2rem;
    color: #4CAF50;
    font-weight: bold;
}

/* 客户评价 */
.testimonials {
    padding: 80px 20px;
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.testimonial-card {
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.rating {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: #FFC107;
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: #555;
    line-height: 1.8;
}

.customer {
    display: flex;
    flex-direction: column;
}

.customer strong {
    color: #333;
    font-size: 1.1rem;
}

.customer span {
    color: #888;
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

/* 合作伙伴 */
.partners {
    padding: 80px 20px;
    background: #f8f9fa;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
}

.partner-item {
    background: white;
    padding: 2rem;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    font-size: 1.2rem;
    font-weight: bold;
    color: #333;
    transition: all 0.3s ease;
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    color: #4CAF50;
}

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, #4CAF50 0%, #2E7D32 100%);
    color: white;
    padding: 100px 20px 80px;
    text-align: center;
}

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

.page-header p {
    font-size: 1.3rem;
}

/* 关于我们页面 */
.about-intro {
    padding: 80px 20px;
    background: white;
}

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

.about-image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about-text h2 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    color: #4CAF50;
}

.about-text p {
    margin-bottom: 1.2rem;
    line-height: 1.9;
    color: #555;
    font-size: 1.05rem;
}

/* 企业文化 */
.company-culture {
    padding: 80px 20px;
    background: #f8f9fa;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.culture-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: all 0.3s ease;
}

.culture-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.culture-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.culture-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #4CAF50;
}

.culture-card p {
    color: #666;
    line-height: 1.8;
}

/* 发展历程 */
.timeline {
    padding: 80px 20px;
    background: white;
}

.timeline-container {
    max-width: 900px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 70px;
    top: 50px;
    width: 2px;
    height: calc(100% + 3rem);
    background: linear-gradient(135deg, #4CAF50 0%, #2E7D32 100%);
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-year {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    background: linear-gradient(135deg, #4CAF50 0%, #2E7D32 100%);
    padding: 12px 24px;
    border-radius: 30px;
    min-width: 110px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.3);
}

.timeline-content {
    flex: 1;
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
}

.timeline-content h3 {
    margin-bottom: 0.8rem;
    color: #4CAF50;
    font-size: 1.3rem;
}

.timeline-content p {
    color: #666;
    line-height: 1.8;
}

/* 企业优势 */
.advantages {
    padding: 80px 20px;
    background: #f8f9fa;
}

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

.advantage-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.advantage-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.advantage-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: #4CAF50;
}

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

/* 荣誉资质 */
.certificates {
    padding: 80px 20px;
    background: white;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.certificate-item {
    background: #f8f9fa;
    padding: 2.5rem 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.certificate-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    background: white;
}

.certificate-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.certificate-item h3 {
    color: #333;
    font-size: 1.1rem;
    line-height: 1.6;
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 60px 20px 20px;
}

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

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: #bbb;
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

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

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

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

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #444;
    color: #bbb;
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

/* 响应式设计 */
@media (max-width: 968px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .process-steps {
        flex-direction: column;
    }
    
    .process-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .page-header h1 {
        font-size: 2.2rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
}