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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* 容器 */
.container {
    width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.header {
    background-color: #6B7280;
    color: white;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(107, 114, 128, 0.3);
}

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

.logo h1 {
    font-size: 24px;
    font-weight: bold;
}

.nav ul {
    display: flex;
    list-style: none;
}

.nav ul li {
    margin-left: 30px;
}

.nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
    position: relative;
}

.nav ul li a:hover,
.nav ul li a.active {
    opacity: 0.8;
    transform: translateY(-2px);
}

.nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #38BDF8;
}

/* Banner */
.banner {
    background-color: #6B7280;
    color: white;
    padding: 120px 0;
    text-align: center;
    background-image: url('../images/banner.jpg');
    background-size: cover;
    background-position: center;
    position: relative;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(107, 114, 128, 0.8);
}

.banner .container {
    position: relative;
    z-index: 1;
}

.banner h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.banner p {
    font-size: 20px;
    opacity: 0.9;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

/* 业务入口 */
.business-entries {
    padding: 80px 0;
    background-color: white;
}

.business-entries h3 {
    font-size: 32px;
    text-align: center;
    margin-bottom: 60px;
    color: #6B7280;
    position: relative;
}

.business-entries h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: #38BDF8;
}

.entries-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 30px;
}

.entry-item {
    background-color: #f5f5f5;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    text-align: center;
}

.entry-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(107, 114, 128, 0.2);
}

.entry-icon {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background-color: #E0F2FE;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.entry-item:hover .entry-icon {
    background-color: #38BDF8;
}

.entry-icon .icon {
    font-size: 32px;
    transition: all 0.3s ease;
}

.entry-icon .hover-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 32px;
    opacity: 0;
    transition: all 0.3s ease;
}

.entry-item:hover .entry-icon .icon {
    opacity: 0;
}

.entry-item:hover .entry-icon .hover-icon {
    opacity: 1;
}

.entry-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #6B7280;
}

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

/* 公司全业务介绍 */
.business-overview {
    padding: 80px 0;
    background-color: #f5f5f5;
}

.business-overview h3 {
    font-size: 32px;
    text-align: center;
    margin-bottom: 40px;
    color: #6B7280;
    position: relative;
}

.business-overview h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: #38BDF8;
}

.overview-content {
    max-width: 800px;
    margin: 0 auto;
}

.overview-content p {
    font-size: 16px;
    margin-bottom: 20px;
    color: #666;
    line-height: 1.8;
}

.overview-content ul {
    list-style: none;
    padding-left: 20px;
}

.overview-content ul li {
    font-size: 16px;
    margin-bottom: 10px;
    color: #666;
    position: relative;
    line-height: 1.6;
}

.overview-content ul li::before {
    content: '•';
    color: #38BDF8;
    font-weight: bold;
    position: absolute;
    left: -20px;
}

/* 一站式服务流程 */
.service-process {
    padding: 80px 0;
    background-color: white;
}

.service-process h3 {
    font-size: 32px;
    text-align: center;
    margin-bottom: 60px;
    color: #6B7280;
    position: relative;
}

.service-process h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: #38BDF8;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    gap: 30px;
}

.process-item {
    flex: 1;
    background-color: #f5f5f5;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    text-align: center;
}

.process-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(107, 114, 128, 0.2);
}

.process-icon {
    width: 60px;
    height: 60px;
    background-color: #38BDF8;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
    margin: 0 auto 20px;
}

.process-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #6B7280;
}

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

/* 行业整体解决方案 */
.industry-solutions {
    padding: 80px 0;
    background-color: #f5f5f5;
}

.industry-solutions h3 {
    font-size: 32px;
    text-align: center;
    margin-bottom: 60px;
    color: #6B7280;
    position: relative;
}

.industry-solutions h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: #38BDF8;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.solution-item {
    background-color: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.solution-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(107, 114, 128, 0.2);
}

.solution-item h4 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #6B7280;
}

.solution-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 合作客户墙 */
.client-wall {
    padding: 80px 0;
    background-color: white;
}

.client-wall h3 {
    font-size: 32px;
    text-align: center;
    margin-bottom: 60px;
    color: #6B7280;
    position: relative;
}

.client-wall h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: #38BDF8;
}

.client-scroll {
    overflow: hidden;
    position: relative;
}

.client-track {
    display: flex;
    animation: scroll 30s linear infinite;
}

.client-item {
    flex: 0 0 200px;
    margin: 0 30px;
    text-align: center;
}

.client-item img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 10px;
    border: 2px solid #38BDF8;
}

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

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

/* 页脚 */
.footer {
    background-color: #6B7280;
    color: white;
    padding: 40px 0;
}

.footer .container {
    display: flex;
    justify-content: space-between;
}

.footer-info h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: white;
}

.footer-info p {
    margin-bottom: 10px;
    opacity: 0.8;
}

.footer-links ul {
    list-style: none;
    display: flex;
    gap: 30px;
}

.footer-links ul li a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    margin-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    opacity: 0.7;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        width: 95%;
    }
    
    .entries-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .process-steps {
        flex-wrap: wrap;
    }
    
    .process-item {
        flex: 0 0 calc(50% - 15px);
    }
    
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav ul li {
        margin: 0 10px;
    }
    
    .banner h2 {
        font-size: 36px;
    }
    
    .entries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-item {
        flex: 0 0 100%;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .footer .container {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-links ul {
        flex-direction: column;
        gap: 10px;
    }
}