/* 业务中心页面样式 */

/* 横幅 */
.banner {
    background: linear-gradient(135deg, rgba(0, 120, 255, 0.9) 0%, rgba(0, 86, 179, 0.9) 100%),
                url('../images/business-banner-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: #fff;
    padding: 160px 0 100px;
    text-align: center;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

/* 背景装饰元素 */
.banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: moveBackground 20s linear infinite;
    z-index: 1;
}

/* 调整遮罩层透明度，确保背景图片可见 */
.banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0,120,255,0.4) 0%, rgba(0,86,179,0.4) 100%);
    z-index: 2;
}

.banner .container {
    position: relative;
    z-index: 3;
}

/* 背景动画 */
@keyframes moveBackground {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

.banner h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}

.banner p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

/* 业务内容 */
.business-content {
    padding: 100px 0;
    background-color: #fff;
}

/* 锚点偏移，避免被固定导航栏覆盖 */
.business-section {
    position: relative;
    margin-bottom: 100px;
}

.business-section::before {
    content: '';
    display: block;
    height: 80px;
    margin-top: -80px;
    visibility: hidden;
}

.business-section h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 40px;
    color: #333;
    border-bottom: 2px solid #0078FF;
    padding-bottom: 15px;
}

.business-details {
    display: flex;
    gap: 50px;
    align-items: center;
}

.business-info {
    flex: 1;
}

.business-info h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.business-info p {
    font-size: 16px;
    margin-bottom: 20px;
    color: #666;
    line-height: 1.6;
}

.business-info ul {
    list-style: none;
    margin-bottom: 20px;
}

.business-info ul li {
    font-size: 16px;
    margin-bottom: 10px;
    color: #666;
    position: relative;
    padding-left: 25px;
}

.business-info ul li:before {
    content: "•";
    color: #0078FF;
    font-size: 20px;
    position: absolute;
    left: 0;
    top: -2px;
}

.business-image {
    flex: 1;
}

.business-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .business-details {
        flex-direction: column;
        text-align: center;
    }
    
    .business-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .banner h2 {
        font-size: 36px;
    }
    
    .banner p {
        font-size: 16px;
    }
    
    .business-section h3 {
        font-size: 24px;
    }
    
    .business-info ul li {
        text-align: left;
    }
}