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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f7fa;
}

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

a {
    color: inherit;
    text-decoration: none;
}

/* 头部导航 */
.header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 22px;
    margin: 0;
}

.logo .tagline {
    font-size: 12px;
    opacity: 0.9;
    margin-top: 3px;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    color: white;
    opacity: 0.85;
    transition: opacity 0.3s;
    font-size: 15px;
}

.nav a:hover,
.nav a.active {
    opacity: 1;
    border-bottom: 2px solid white;
}

/* 英雄区 */
.hero {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.hero p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 30px;
}

/* 页面横幅 */
.page-banner {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 50px 0;
    text-align: center;
}

.page-banner h2 {
    font-size: 32px;
    margin-bottom: 10px;
}

.page-banner p {
    font-size: 16px;
    opacity: 0.9;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

.btn-primary {
    background: #1e3c72;
    color: white;
}

.btn-primary:hover {
    background: #2a5298;
}

.btn-white {
    background: white;
    color: #1e3c72;
}

.btn-white:hover {
    background: #f5f5f5;
}

/* 统计区 */
.stats-section {
    margin-top: -40px;
    position: relative;
    z-index: 10;
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    padding: 30px;
}

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

.stat-item h3 {
    font-size: 36px;
    color: #1e3c72;
    margin-bottom: 5px;
}

.stat-item p {
    color: #666;
    font-size: 14px;
}

/* 通用区块 */
.section {
    padding: 60px 0;
}

.section.bg-light {
    background: white;
}

.section-title {
    font-size: 28px;
    color: #1e3c72;
    text-align: center;
    margin-bottom: 40px;
}

.section-desc {
    text-align: center;
    color: #666;
    margin-top: -30px;
    margin-bottom: 30px;
}

/* 产品卡片 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.product-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.product-card .icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.product-card h3 {
    font-size: 18px;
    color: #1e3c72;
    margin-bottom: 10px;
}

.product-card p {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.link-more {
    color: #2a5298;
    font-size: 14px;
}

.link-more:hover {
    text-decoration: underline;
}

/* 优势区块 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.advantage-item {
    background: linear-gradient(145deg, #f0f4f8 0%, #ffffff 100%);
    border-radius: 10px;
    padding: 25px;
}

.advantage-item h4 {
    color: #1e3c72;
    margin-bottom: 10px;
}

.advantage-item p {
    color: #666;
    font-size: 14px;
}

/* 合作伙伴 */
.partners {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.partner-category {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
}

.partner-category h4 {
    color: #1e3c72;
    margin-bottom: 10px;
    font-size: 14px;
}

.partner-category p {
    color: #666;
    font-size: 13px;
}

/* CTA区块 */
.cta-section {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 28px;
    margin-bottom: 10px;
}

.cta-section p {
    opacity: 0.9;
    margin-bottom: 25px;
}

/* 时间线 */
.timeline {
    margin-top: 20px;
}

.timeline-item {
    display: flex;
    margin-bottom: 20px;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.timeline-year {
    min-width: 100px;
    font-weight: bold;
    color: #1e3c72;
    font-size: 18px;
}

.timeline-content h4 {
    margin-bottom: 5px;
    color: #333;
}

.timeline-content p {
    color: #666;
    font-size: 14px;
}

/* 企业文化 */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.culture-item {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    border-radius: 12px;
    padding: 40px 25px;
    text-align: center;
    color: white;
}

.culture-item .icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.culture-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.culture-item p {
    opacity: 0.9;
    font-size: 14px;
}

/* 详细优势 */
.advantages-detailed {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.advantage-card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.advantage-card h4 {
    color: #1e3c72;
    margin-bottom: 10px;
}

.advantage-card p {
    color: #666;
    font-size: 14px;
}

/* 产品详情 */
.product-detail-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.product-detail-card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.product-detail-card h4 {
    color: #1e3c72;
    margin-bottom: 10px;
    font-size: 16px;
}

.product-detail-card p {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
}

.product-detail-card ul {
    list-style: none;
    padding: 0;
}

.product-detail-card li {
    color: #555;
    font-size: 13px;
    padding: 5px 0;
    border-bottom: 1px dashed #eee;
}

.product-detail-card li:last-child {
    border-bottom: none;
}

/* 服务卡片 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.service-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.service-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.service-card h3 {
    color: #1e3c72;
    margin-bottom: 10px;
}

.service-card p {
    color: #666;
    margin-bottom: 15px;
}

.service-card ul {
    list-style: none;
    padding: 0;
}

.service-card li {
    color: #555;
    font-size: 14px;
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.service-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #2a5298;
}

/* 流程 */
.process-flow {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 15px;
}

.process-step {
    text-align: center;
    padding: 20px 10px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    font-weight: bold;
}

.process-step h4 {
    color: #1e3c72;
    font-size: 14px;
    margin-bottom: 5px;
}

.process-step p {
    color: #666;
    font-size: 12px;
}

/* 承诺 */
.commitment-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.commitment-item {
    background: linear-gradient(145deg, #f0f4f8 0%, #ffffff 100%);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
}

.commitment-item h4 {
    color: #1e3c72;
    margin-bottom: 10px;
}

.commitment-item p {
    color: #666;
    font-size: 14px;
}

/* 联系页面 */
.contact-grid-page {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 30px;
}

.contact-info-card,
.contact-form-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.contact-info-card h3,
.contact-form-card h3 {
    color: #1e3c72;
    margin-bottom: 20px;
    font-size: 20px;
}

.contact-item {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.contact-icon {
    font-size: 24px;
}

.contact-detail h4 {
    color: #333;
    margin-bottom: 5px;
    font-size: 15px;
}

.contact-detail p {
    color: #666;
    font-size: 14px;
}

/* 表单 */
.contact-form .form-group {
    margin-bottom: 20px;
}

.contact-form label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-size: 14px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #2a5298;
}

.contact-form textarea {
    resize: vertical;
}

/* 交通指引 */
.transport-guide {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.transport-item {
    background: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.transport-item h4 {
    color: #1e3c72;
    margin-bottom: 10px;
}

.transport-item p {
    color: #666;
    font-size: 14px;
}

/* 页脚 */
.footer {
    background: #1e3c72;
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-info h3 {
    margin-bottom: 15px;
}

.footer-info p {
    opacity: 0.85;
    font-size: 14px;
    margin-bottom: 8px;
}

.footer-links h4 {
    margin-bottom: 15px;
}

.footer-links a {
    display: block;
    opacity: 0.85;
    font-size: 14px;
    margin-bottom: 8px;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom a {
    opacity: 0.85;
    font-size: 13px;
}

.footer-bottom a:hover {
    opacity: 1;
}

/* 联系页面新样式 */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.contact-card {
    background: white;
    border-radius: 16px;
    padding: 35px 25px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.contact-card-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.contact-card h4 {
    color: #1e3c72;
    font-size: 18px;
    margin-bottom: 15px;
}

.contact-card p {
    color: #666;
    font-size: 14px;
    line-height: 1.8;
}

.contact-card .contact-note {
    display: inline-block;
    margin-top: 10px;
    padding: 5px 12px;
    background: #f0f4f8;
    border-radius: 20px;
    font-size: 12px;
    color: #2a5298;
}

/* 交通指引新样式 */
.transport-guide-new {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.transport-card {
    background: white;
    border-radius: 16px;
    padding: 35px 30px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border-top: 4px solid #1e3c72;
}

.transport-icon {
    font-size: 42px;
    margin-bottom: 20px;
}

.transport-card h4 {
    color: #1e3c72;
    font-size: 18px;
    margin-bottom: 15px;
}

.transport-card p {
    color: #666;
    font-size: 14px;
    line-height: 1.8;
}

/* 响应式 */
@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partners {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-detail-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-flow {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .advantages-detailed {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .commitment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid-page {
        grid-template-columns: 1fr;
    }
    
    .transport-guide {
        grid-template-columns: 1fr;
    }
    
    .contact-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .transport-guide-new {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        text-align: center;
    }
    
    .nav {
        margin-top: 15px;
        gap: 15px;
    }
    
    .hero h2 {
        font-size: 28px;
    }
    
    .stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .partners {
        grid-template-columns: 1fr;
    }
    
    .culture-grid {
        grid-template-columns: 1fr;
    }
    
    .product-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .process-flow {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-cards {
        grid-template-columns: 1fr;
    }
    
    .transport-guide-new {
        grid-template-columns: 1fr;
    }
}