/* 业务部分 */
.business-section {
    width: 100%;
    padding: var(--section-spacing) 0;
    background: var(--light-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section-title {
    text-align: center;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: clamp(2rem, 5vw, 3rem);
    color: var(--dark-blue);
}

/* 业务模块 */
.business-card {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto clamp(2rem, 5vw, 4rem);
    padding: clamp(1.5rem, 3vw, 2rem);
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
    display: flex;
    gap: clamp(2rem, 5vw, 3rem);
}

.business-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: clamp(1rem, 2vw, 1.5rem);
}

.business-title {
    color: var(--dark-blue);
    font-size: clamp(1.5rem, 3vw, 1.8rem);
    position: relative;
    padding-left: 2rem;
}

.business-title::before {
    content: "▶";
    position: absolute;
    left: 0;
    color: var(--primary-blue);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(0.5rem, 1vw, 1rem);
}

.tech-tag {
    background: var(--primary-blue);
    color: white;
    padding: clamp(0.3rem, 1vw, 0.5rem) clamp(0.8rem, 2vw, 1rem);
    border-radius: 20px;
    font-size: clamp(0.8rem, 1.5vw, 0.9rem);
}

.business-content-card-title {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: #333;
    line-height: 1.6;
}

.business-content ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.business-content li {
    font-size: clamp(0.9rem, 1.8vw, 1.1rem);
    color: #666;
    position: relative;
    padding-left: 1.5rem;
}

.business-content li::before {
    content: "•";
    color: var(--primary-blue);
    position: absolute;
    left: 0;
}

.highlight {
    color: var(--primary-blue);
    font-weight: 500;
    font-size: clamp(1rem, 2vw, 1.2rem);
    line-height: 1.6;
}

.business-image {
    flex: 1;
    min-height: clamp(250px, 40vh, 400px);
    border-radius: 8px;
    overflow: hidden;
}

.business-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.business-image:hover img {
    transform: scale(1.05);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .business-card {
        flex-direction: column;
    }

    .business-image {
        min-height: clamp(200px, 30vh, 300px);
        order: -1;
    }
}

@media (max-width: 768px) {
    .business-title {
        font-size: clamp(1.3rem, 2.5vw, 1.5rem);
        padding-left: 1.5rem;
    }

    .tech-tags {
        gap: 0.5rem;
    }

    .tech-tag {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .business-card {
        padding: clamp(1rem, 2vw, 1.5rem);
    }

    .business-title {
        font-size: 1.3rem;
        padding-left: 1.2rem;
    }

    .business-image {
        min-height: clamp(150px, 25vh, 200px);
    }
}