/* ============================================
   产品详情页 — 共享样式
   Product Detail Pages
   ============================================ */

/* Product Hero */
.product-hero {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 60px;
    overflow: hidden;
    background: var(--bg-deep);
}

.product-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(ellipse at 30% 30%, rgba(61, 127, 255, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 70%, rgba(139, 95, 255, 0.08) 0%, transparent 50%);
}

.product-hero-content {
    position: relative;
    z-index: 1;
    max-width: 1240px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.product-hero-text .product-tag {
    margin-bottom: 16px;
}

.product-hero-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--text-heading);
    margin-bottom: 20px;
    line-height: 1.3;
}

.product-hero-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 2;
    margin-bottom: 32px;
}

.product-hero-icon {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-hero-icon-wrap {
    width: 280px;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.product-hero-icon-wrap::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(61, 127, 255, 0.1) 0%, transparent 70%);
}

.product-hero-icon-wrap svg {
    width: 120px;
    height: 120px;
    color: var(--blue-light);
    position: relative;
    z-index: 1;
}

/* Product Body */
.product-body {
    padding: 80px 0;
    background: var(--bg-dark);
    border-top: 1px solid var(--border-subtle);
}

.product-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.feature-detail-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.4s ease;
}

.feature-detail-card:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.feature-detail-card .feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--grad-glow);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--blue-light);
    margin-bottom: 20px;
}

.feature-detail-card .feature-icon svg { width: 26px; height: 26px; }

.feature-detail-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 10px;
}

.feature-detail-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Product Scenarios */
.product-scenarios {
    background: var(--bg-deep);
    padding: 80px 0;
    border-top: 1px solid var(--border-subtle);
}

.scenario-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.scenario-item {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    padding: 28px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.scenario-item:hover {
    border-color: var(--border-strong);
    background: var(--bg-card-hover);
}

.scenario-num {
    font-family: var(--font-en);
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    flex-shrink: 0;
    min-width: 48px;
}

.scenario-body h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 8px;
}

.scenario-body p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Product Metrics */
.product-metrics {
    background: var(--bg-dark);
    padding: 80px 0;
    border-top: 1px solid var(--border-subtle);
}

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

.metric-card {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.metric-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-4px);
}

.metric-val {
    font-family: var(--font-en);
    font-size: 2.4rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.metric-label {
    font-size: 13px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

/* Product CTA */
.product-cta {
    padding: 80px 0;
    background: var(--bg-deep);
    border-top: 1px solid var(--border-subtle);
    text-align: center;
}

.product-cta h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 16px;
}

.product-cta p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.product-cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* Back nav */
.product-back-nav {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    transition: color 0.3s ease;
}

.product-back-nav:hover { color: var(--blue-light); }

/* Product Highlights */
.product-highlights {
    padding: 80px 0;
    background: var(--bg-deep);
    border-top: 1px solid var(--border-subtle);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.highlight-large-card {
    padding: 36px 28px;
    background: var(--gradient-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.highlight-large-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.highlight-large-card:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.highlight-large-card:hover::before { transform: scaleX(1); }

.highlight-large-card .hl-num {
    font-family: var(--font-en);
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
}

.highlight-large-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 12px;
}

.highlight-large-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Product Integration */
.product-integration {
    padding: 80px 0;
    background: var(--bg-dark);
    border-top: 1px solid var(--border-subtle);
}

.integration-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    max-width: 900px;
    margin: 0 auto;
}

.integration-node {
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all 0.3s ease;
}

.integration-node:hover {
    border-color: var(--border-strong);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.integration-node.current {
    border-color: var(--blue);
    background: rgba(61, 127, 255, 0.08);
}

.integration-node .node-icon {
    width: 36px;
    height: 36px;
    margin: 0 auto 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-light);
}

.integration-node .node-icon svg { width: 24px; height: 24px; }

.integration-node .node-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-heading);
}

.integration-node .node-desc {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

.integration-arrow {
    color: var(--text-muted);
    font-size: 20px;
    flex-shrink: 0;
}

/* Responsive */
@media (max-width: 1024px) {
    .product-hero-content { grid-template-columns: 1fr; gap: 40px; }
    .product-features-grid { grid-template-columns: repeat(2, 1fr); }
    .metrics-grid { grid-template-columns: repeat(2, 1fr); }
    .highlights-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .product-hero { padding: 100px 20px 40px; min-height: auto; }
    .product-features-grid { grid-template-columns: 1fr; }
    .metrics-grid { grid-template-columns: 1fr; }
    .scenario-item { flex-direction: column; gap: 12px; padding: 20px; }
    .product-cta-actions { flex-direction: column; align-items: center; }
    .highlights-grid { grid-template-columns: 1fr; }
    .integration-flow { flex-direction: column; }
    .integration-arrow { transform: rotate(90deg); }
}