/* =============================================
   MindCanvas 产品页 — 统一风格
   渐变蓝主基调 · 柔和圆角
   ============================================= */

.product-page {
  padding-top: 70px;
}

/* ========== Product Hero ========== */
.product-hero {
  background: linear-gradient(160deg, var(--blue-deep) 0%, var(--blue-primary) 50%, var(--blue-light) 100%);
  padding: var(--space-lg) var(--space-lg);
  position: relative;
  overflow: hidden;
}

.product-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 70% 20%, rgba(212, 168, 75, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.product-hero-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.product-hero-visual {
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.product-hero-visual-placeholder {
  font-size: 4rem;
  opacity: 0.6;
}

.product-hero-logo {
  background: rgba(255, 255, 255, 0.95);
  padding: var(--space-lg);
}

.product-hero-logo .app-logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.download-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.store-badge {
  display: inline-block;
  transition: opacity 0.2s;
}

.store-badge:hover {
  opacity: 0.85;
}

.store-badge img {
  display: block;
  height: 40px;
  width: auto;
  border-radius: 4px;
}

.product-hero-content h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-xs);
}

.product-hero-content .product-tagline {
  font-size: 1.1rem;
  color: var(--gold-soft);
  font-weight: 500;
  margin-bottom: var(--space-md);
}

.product-hero-content .product-overview {
  color: var(--gray-200);
  line-height: 1.8;
  font-size: 1rem;
}

@media (max-width: 768px) {
  .product-hero-inner {
    grid-template-columns: 1fr;
  }

  .product-hero-visual {
    order: -1;
    max-height: 200px;
  }
}

/* ========== Core Features ========== */
.product-features {
  padding: var(--space-lg) var(--space-lg);
  background: var(--white);
}

.product-features .section-title {
  color: var(--blue-deep);
}

.feature-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.feature-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid rgba(13, 148, 136, 0.15);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s var(--ease-out);
}

.feature-card:hover {
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--teal-healing), var(--teal-soft));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

.feature-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ========== Product Value ========== */
.product-value {
  padding: var(--space-lg) var(--space-lg);
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-deep));
  color: white;
}

.product-value-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.product-value h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.product-value p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--gray-200);
}

/* ========== Ecosystem ========== */
.product-ecosystem {
  padding: var(--space-lg) var(--space-lg);
  background: var(--gray-100);
}

.product-ecosystem .section-title {
  color: var(--blue-deep);
}

.ecosystem-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.ecosystem-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  text-decoration: none;
  color: inherit;
  border: 2px solid transparent;
  transition: all 0.3s var(--ease-out);
}

.ecosystem-card:hover {
  border-color: var(--teal-soft);
  transform: translateY(-2px);
}

.ecosystem-card.current {
  border-color: var(--gold-soft);
  background: rgba(212, 168, 75, 0.08);
}

.ecosystem-card .eco-icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.ecosystem-card h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: var(--space-xs);
}

.ecosystem-card p {
  font-size: 0.85rem;
  color: var(--gray-600);
}

@media (max-width: 800px) {
  .ecosystem-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}