/**
 * 药智通产品详情页专属样式
 * 基于 style.css 变量，扩展产品页特有组件
 */

/* ===== 产品页 Hero ===== */
.product-hero {
    padding: 140px 20px 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #edf2f7 50%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.product-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(43,108,176,0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.product-hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.product-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.product-hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.25rem;
    color: var(--text);
}

.product-hero-title .gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.product-hero-subtitle strong {
    color: var(--primary);
    font-weight: 600;
}

.product-hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.product-hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.product-hero-stat {
    text-align: center;
}

.product-hero-stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.product-hero-stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ===== 痛点场景 ===== */
.pain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.pain-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
}

.pain-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow);
    transform: translateY(-3px);
}

.pain-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.pain-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.75rem;
}

.pain-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin: 0;
}

/* ===== 功能模块 ===== */
.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 5rem;
}

.feature-block:last-child {
    margin-bottom: 0;
}

.feature-block-reverse {
    direction: rtl;
}

.feature-block-reverse > * {
    direction: ltr;
}

.feature-block-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.feature-block-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.75rem;
}

.feature-block-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.feature-block-list {
    list-style: none;
}

.feature-block-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.feature-block-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.85rem;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* ===== 功能模块可视化 ===== */
.feature-block-visual {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow);
}

/* 备案流程 */
.feature-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.feature-flow-step {
    text-align: center;
    flex: 1;
}

.feature-flow-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-warm);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    margin: 0 auto 0.5rem;
    transition: var(--transition);
}

.feature-flow-step.active .feature-flow-number {
    background: var(--primary);
    color: white;
}

.feature-flow-step span {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.feature-flow-arrow {
    color: var(--text-muted);
    font-size: 1.25rem;
    flex-shrink: 0;
}

/* 佣金演示 */
.commission-demo-header {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.commission-demo-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.commission-demo-row span:first-child {
    font-size: 0.875rem;
    color: var(--text-secondary);
    width: 80px;
    flex-shrink: 0;
}

.commission-demo-bar {
    flex: 1;
    height: 8px;
    background: var(--bg-warm);
    border-radius: 4px;
    overflow: hidden;
}

.commission-demo-bar div {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 4px;
}

.commission-demo-row span:last-child {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary);
    width: 40px;
    text-align: right;
}

.commission-demo-total {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.9375rem;
    color: var(--text-secondary);
    text-align: center;
}

.commission-demo-total strong {
    color: var(--primary);
    font-size: 1.25rem;
    font-weight: 700;
}

/* 销售状态 */
.sales-status-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.sales-status-item {
    text-align: center;
}

.sales-status-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    margin: 0 auto 0.5rem;
}

.sales-status-dot.pending { background: #f6ad55; }
.sales-status-dot.processing { background: #63b3ed; }
.sales-status-dot.completed { background: #48bb78; }
.sales-status-dot.settled { background: var(--primary); }

.sales-status-item span {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.sales-status-line {
    width: 40px;
    height: 2px;
    background: var(--border);
}

/* 供应链 */
.supply-chain-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.sc-node {
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 600;
    text-align: center;
}

.sc-supplier { background: #fed7d7; color: #c53030; }
.sc-purchase { background: #feebc8; color: #c05621; }
.sc-warehouse { background: #c6f6d5; color: #276749; }
.sc-sale { background: var(--primary-light); color: var(--primary); }

.sc-arrow {
    color: var(--text-muted);
    font-weight: 700;
}

/* 财务卡片 */
.finance-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.finance-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background: var(--bg-warm);
    border-radius: var(--radius);
    border-left: 3px solid var(--primary);
}

.finance-card-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.finance-card-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
}

/* 审批流程 */
.approval-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.approval-node {
    text-align: center;
}

.approval-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-warm);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    margin: 0 auto 0.5rem;
}

.approval-node.active .approval-avatar {
    background: var(--primary);
    color: white;
}

.approval-node span {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.approval-arrow {
    color: var(--text-muted);
    font-size: 1.25rem;
}

/* ===== 更多功能 ===== */
.more-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.more-feature-item {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition);
}

.more-feature-item:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.more-feature-item svg {
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.more-feature-item h4 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.more-feature-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ===== 技术架构 ===== */
.tech-arch-diagram {
    max-width: 800px;
    margin: 0 auto 2rem;
}

.tech-layer {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    margin-bottom: 0.75rem;
}

.tech-layer-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
}

.tech-layer-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-item {
    padding: 0.375rem 0.875rem;
    background: var(--bg-warm);
    border-radius: var(--radius);
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.tech-item.tech-highlight {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}

.tech-connector {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 0.25rem 0;
}

.tech-specs {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.tech-spec-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.tech-spec-item svg {
    color: var(--success);
    flex-shrink: 0;
}

.tech-spec-item span {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

/* ===== 安全合规 ===== */
.security-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.security-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition);
}

.security-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow);
}

.security-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.security-card h4 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.security-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ===== 定价卡片 ===== */
.pricing-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto 1.5rem;
}

.pricing-card {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2rem;
    position: relative;
    transition: var(--transition);
}

.pricing-card:hover {
    box-shadow: var(--shadow-lg);
}

.pricing-card-recommended {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.pricing-card-badge {
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 0.25rem 1.5rem;
    border-radius: 0 0 var(--radius) var(--radius);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-card-header {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.pricing-card-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.75rem;
}

.pricing-card-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
}

.price-currency {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.price-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.price-unit {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.pricing-card-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

.pricing-card-features {
    margin-bottom: 1.5rem;
}

.pricing-feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.pricing-feature-item svg {
    color: var(--success);
    flex-shrink: 0;
}

.pricing-feature-item.muted {
    color: var(--text-muted);
}

.pricing-feature-item.muted svg {
    color: var(--text-muted);
}

.pricing-note {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ===== 客户收益 ===== */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.benefit-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.benefit-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.benefit-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 0.75rem;
}

.benefit-card h4 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.benefit-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ===== 按钮扩展 ===== */
.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

.btn-outline-white {
    background: transparent;
    color: white;
    border: 2px solid rgba(255,255,255,0.5);
}

.btn-outline-white:hover {
    background: rgba(255,255,255,0.1);
    border-color: white;
}

/* ===== 导航激活状态 ===== */
.nav-link.active {
    color: var(--primary);
}

.nav-link.active::after {
    transform: scaleX(1);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .pain-grid,
    .more-features-grid,
    .security-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-block {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .feature-block-reverse {
        direction: ltr;
    }
}

@media (max-width: 768px) {
    .product-hero {
        padding: 120px 20px 60px;
    }
    
    .product-hero-title {
        font-size: 2.25rem;
    }
    
    .product-hero-stats {
        gap: 1.5rem;
    }
    
    .product-hero-stat-number {
        font-size: 2rem;
    }
    
    .pain-grid,
    .more-features-grid,
    .security-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .tech-specs {
        grid-template-columns: 1fr;
    }
    
    .feature-block {
        margin-bottom: 3rem;
    }
    
    .feature-flow {
        flex-direction: column;
        gap: 1rem;
    }
    
    .feature-flow-arrow {
        transform: rotate(90deg);
    }
    
    .approval-flow {
        flex-direction: column;
        gap: 1rem;
    }
    
    .approval-arrow {
        transform: rotate(90deg);
    }
    
    .supply-chain-diagram {
        flex-direction: column;
    }
    
    .sc-arrow {
        transform: rotate(90deg);
    }
}

/* ===== 功能卡片网格（v2.0新增模块） ===== */
.feature-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature-card-item {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card-item:hover {
    border-color: transparent;
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(26, 86, 219, 0.06);
    transform: translateY(-6px);
}

.feature-card-item:hover::before {
    transform: scaleX(1);
}

.feature-card-header {
    margin-bottom: 1rem;
}

.feature-card-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.feature-card-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
}

.feature-card-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.feature-card-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.feature-card-list li {
    padding: 0.375rem 0;
    padding-left: 1.25rem;
    position: relative;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.feature-card-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.65rem;
    width: 5px;
    height: 5px;
    background: var(--primary);
    border-radius: 50%;
}

.feature-card-visual {
    background: var(--bg-warm);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-top: auto;
}

/* 迷你供应链图 */
.supply-chain-diagram-mini {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.sc-node-mini {
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
}

.sc-arrow-mini {
    color: var(--text-muted);
    font-weight: 700;
    font-size: 0.875rem;
}

/* 迷你财务卡片 */
.finance-cards-mini {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.finance-card-mini {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0.875rem;
    background: white;
    border-radius: var(--radius);
    border-left: 3px solid var(--primary);
}

/* 迷你审批流 */
.approval-flow-mini {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.approval-node-mini {
    text-align: center;
}

.approval-avatar-mini {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-warm);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    margin: 0 auto 0.25rem;
}

.approval-node-mini.active .approval-avatar-mini {
    background: var(--primary);
    color: white;
}

.approval-node-mini span {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.approval-arrow-mini {
    color: var(--text-muted);
    font-size: 1rem;
}

@media (max-width: 1024px) {
    .feature-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .feature-cards-grid {
        grid-template-columns: 1fr;
    }
}