/* business.css */
main {
    font-family: "Open Sans", sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

 /* 页面横幅 */
.page-banner {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;   
}

.page-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.page-banner:hover img {
    transform: scale(1.02);
}

.page-banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.1));
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    text-align: center;
    z-index: 1;
    max-width: 800px;
    width: 90%;
}

.banner-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;    
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.banner-content p {
    font-size: 1.4rem;   
    opacity: 0.95;    
}

/* 全局样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;    
}

.business {
    display: flex;
    gap: 30px;
    padding: 20px 0;
}

/* 左侧业务导航样式 */
.business-nav {
    flex: 0 0 250px;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
}

.business-nav h3 {
    color: #004a8d;
    border-bottom: 2px solid #EA3200;
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-list li {
    margin: 8px 0;
}

.nav-list a {
    display: block;
    padding: 12px;
    color: #333;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s;
}

.nav-list a:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.nav-list a.active {
    background: #004a8d;
    color: white;
}

/**右侧内容样式**/
.business-content {
    flex: 1;
}


/* 全印展模块样式 */
.exhibition-section {
    padding: 30px 0;
}

.section-title {
    font-size: 2rem;
    color: #004a8d;
    border-left: 4px solid #EA3200;
    padding-left: 1rem;
    margin: 2rem 0;
}

.section-intro {
    font-size: 16px;
    color: #666;
    margin-bottom: 30px;
    text-align: center;
}

.exhibition-row {
    display: flex;
    margin-bottom: 40px;
    align-items: center;
}

.exhibition-img, .exhibition-text {
    flex: 1;
    padding: 0 15px;
}

.exhibition-img img {
    width: 100%;
    height: auto;
    border-radius: 5px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.exhibition-text h3 {
    color: #2a5caa;
    margin-bottom: 15px;
    font-size: 22px;
}

.exhibition-text p {
    line-height: 1.6;
    color: #555;
}

/* 响应式设计 */
@media (max-width: 768px) {

    .page-banner {
        height: 200px;
    }

    .banner-content h1 {
        font-size: 2.5rem;
    }

    .banner-content p {
        font-size: 1.2rem;
    }

    .business {
        flex-direction: column;
    }

    .business-nav {
        flex: none;
    }

    .exhibition-row, .exhibition-row.reverse {
        flex-direction: column;
    }
    
    .exhibition-img, .exhibition-text {
        width: 100%;
        padding: 0;
        margin-bottom: 20px;
    }
    
    .exhibition-row.reverse .exhibition-text {
        order: 1;
    }
    
    .exhibition-row.reverse .exhibition-img {
        order: 2;
    }
}

/* 如果需要更小的屏幕适配 */
@media (max-width: 480px) {
    .exhibition-text h3 {
        font-size: 18px;
    }
    
    .exhibition-text p {
        font-size: 14px;
    }
}