/* ============================================
   慧软企业官网 - 产品服务页面样式
   ============================================ */

/* 产品导航 */
.product-nav {
    background: white;
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    position: sticky;
    top: 70px;
    z-index: 100;
}

.product-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.tab-item {
    padding: 10px 24px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

.tab-item:hover {
    color: var(--primary-color);
    background: var(--bg-light);
}

.tab-item.active {
    color: white;
    background: var(--primary-color);
}

/* 产品详情 */
.product-detail {
    padding: 80px 0;
}

.product-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 80px;
}

.product-intro.reverse {
    direction: rtl;
}

.product-intro.reverse > * {
    direction: ltr;
}

.product-intro-content .section-tag {
    margin-bottom: 20px;
}

.product-intro-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.product-subtitle {
    font-size: 20px;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 20px;
}

.product-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 30px;
}

.product-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.badge {
    padding: 8px 16px;
    background: var(--bg-light);
    color: var(--text-secondary);
    font-size: 13px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.product-actions {
    display: flex;
    gap: 16px;
}

.product-intro-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card {
    width: 320px;
    height: 320px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.visual-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: rotate 20s linear infinite;
}

.visual-card.blue {
    background: linear-gradient(135deg, #3b82f6, #06b6d4);
}

.visual-card.cyan {
    background: linear-gradient(135deg, #06b6d4, #10b981);
}

.visual-icon {
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.visual-card h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.visual-card p {
    font-size: 14px;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 功能区块 */
.features-section {
    padding-top: 40px;
}

.section-title {
    font-size: 28px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-primary);
}

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

.feature-card {
    background: white;
    padding: 35px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-icon.blue {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(6, 182, 212, 0.1));
    color: #3b82f6;
}

.feature-icon.cyan {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(16, 185, 129, 0.1));
    color: #06b6d4;
}

.feature-card h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 定制开发 */
.custom-dev {
    padding: 100px 0;
}

.custom-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.custom-card {
    background: white;
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.custom-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.custom-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    margin: 0 auto 24px;
}

.custom-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.custom-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .product-intro {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }

    .product-intro.reverse {
        direction: ltr;
    }

    .product-badges {
        justify-content: center;
    }

    .product-actions {
        justify-content: center;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .custom-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-tabs {
        flex-wrap: wrap;
    }

    .tab-item {
        padding: 8px 16px;
        font-size: 14px;
    }

    .product-intro-content h2 {
        font-size: 32px;
    }

    .visual-card {
        width: 260px;
        height: 260px;
    }

    .features-grid,
    .custom-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: 25px;
    }
}