/* 本提示词适用的业务方样式 */
.business-applicable-section {
    background: white;
    padding: 60px 0;
    margin-top: 60px;
    border-top: 1px solid #e2e8f0;
}

/* 区域标题 */
.section-main-title {
    font-size: 28px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 48px;
    text-align: center;
}

/* 卡片容器 */
.business-cards-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* 业务卡片 */
.business-card {
    width: 100%;
    max-width: 100%;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: all 0.3s ease;
}

.business-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

/* 卡片头部 */
.card-header {
    padding: 24px;
    background: #f8fafc;
    cursor: pointer;
    position: relative;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
}

.card-description {
    font-size: 14px;
    color: #64748b;
    margin-bottom: 0;
    line-height: 1.5;
    padding-right: 40px; /* 为按钮留出空间 */
}

/* 展开按钮 */
.expand-btn {
    background: #667eea;
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    position: absolute;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.expand-btn:hover {
    background: #5a6fd8;
    transform: translateY(-50%) scale(1.1);
}

/* 卡片内容 */
.card-content {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: white;
}

.card-content-inner {
    padding: 24px 0;
}

/* 展开内容样式 */
.card-content-inner h4 {
    font-size: 16px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 16px;
}

.card-content-inner h5 {
    font-size: 14px;
    font-weight: 600;
    color: #334155;
    margin: 20px 0 12px;
}

.card-content-inner p {
    font-size: 14px;
    color: #475569;
    line-height: 1.6;
    margin-bottom: 16px;
}

.card-content-inner ul,
.card-content-inner ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.card-content-inner li {
    font-size: 14px;
    color: #475569;
    line-height: 1.6;
    margin-bottom: 8px;
}

/* 工具链接列表 */
.tool-links {
    list-style: none;
    padding-left: 0 !important;
}

.tool-links li {
    margin-bottom: 12px;
}

.tool-links a {
    color: #3b82f6;
    text-decoration: none;
    transition: color 0.3s ease;
}

.tool-links a:hover {
    color: #2563eb;
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .business-cards-container {
        gap: 20px;
    }
}

@media (max-width: 992px) {
    .business-cards-container {
        align-items: center;
    }
}

@media (max-width: 768px) {
    .business-applicable-section {
        padding: 40px 0;
    }

    .section-main-title {
        font-size: 24px;
        margin-bottom: 32px;
    }

    .card-header {
        padding: 20px;
    }

    .card-content {
        padding: 0 20px;
    }
    
    .expand-btn {
        top: 24px;
        transform: none;
    }
    
    .expand-btn:hover {
        transform: scale(1.1);
    }
    
    .card-description {
        margin-top: 8px;
        padding-right: 0;
    }
}