body {
  --color-bg: #181A1B;
  --color-surface: rgba(36,37,38,0.85);
  --color-border: rgba(255,255,255,0.08);
  --color-primary: #FFFFFF;
  --color-secondary: #B0B0B0;
  --color-tertiary: #888888;
  --color-accent: #3B82F6;
  --color-icon: #FFFFFF;
  --color-icon-active: #3B82F6;
  background: var(--color-bg);
  min-height: 100vh;
  font-family: 'Inter', 'Poppins', Arial, sans-serif;
}
.glass-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 24px;
  margin-bottom: 32px;
}
.hero-section {
  text-align: center;
  margin: 48px auto 40px auto;
  max-width: 700px;
}
.hero-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 18px;
  letter-spacing: 2px;
}
.hero-desc {
  font-size: 1.2rem;
  color: var(--color-secondary);
  margin-bottom: 32px;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
  font-size: 1.1rem;
  padding: 14px 36px;
  border-radius: 8px;
  font-weight: 600;
  border: none;
  box-shadow: 0 4px 15px rgba(0,0,0,0.12);
  transition: background 0.2s, color 0.2s;
  display: inline-block;
  text-align: center;
  text-decoration: none;
}
.btn-primary:hover {
  background: #2563eb;
  color: var(--color-primary);
}
.icon-btn {
  background: none;
  border: none;
  color: var(--color-icon);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: color 0.2s, background 0.2s;
  font-size: 1.3rem;
  cursor: pointer;
}
.icon-btn:hover, .icon-btn.active {
  color: var(--color-icon-active);
  background: rgba(59,130,246,0.08);
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 32px;
}
.product-card {
  background: rgba(24,26,27,0.98);
  border: 2px solid #60a5fa;
  border-radius: 18px;
  box-shadow: 0 8px 32px 0 rgba(59,130,246,0.18), 0 2px 8px rgba(0,0,0,0.18);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s, background 0.2s;
  margin-bottom: 24px;
}
.product-card:hover {
  border-color: #fff;
  box-shadow: 0 12px 36px 0 #3B82F6, 0 4px 16px #0008;
  background: rgba(36,37,38,1);
}
.product-card img {
  width: 100%;
  max-width: 180px;
  border-radius: 12px;
  margin-bottom: 16px;
  background: #232526;
}
.product-title {
  color: #fff;
  text-shadow:
    0 2px 12px #3B82F6,
    0 1px 8px #fff,
    0 0.5px 2px #000;
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
}
.product-price {
  font-size: 1rem;
  color: var(--color-accent);
  margin-bottom: 12px;
  font-weight: 600;
}
.category-tabs {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 24px;
  margin-bottom: 40px;
  display: flex;
  gap: 24px;
  justify-content: center;
}
.category-tab {
  color: var(--color-secondary);
  font-size: 1rem;
  font-weight: 500;
  padding: 8px 0px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-bottom 0.2s;
  text-decoration: none;
}
.category-tab.active, .category-tab:hover {
  color: var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
}
.section-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 24px;
  text-align: left;
}
/* Hero Section 专属设计 */
.glass-card.hero-section {
  background: linear-gradient(120deg, rgba(36,37,38,0.92) 60%, rgba(59,130,246,0.10) 100%);
  box-shadow: 0 8px 32px rgba(59,130,246,0.08), 0 2px 8px rgba(0,0,0,0.10);
  padding: 56px 32px 56px 32px;
  margin-top: 48px;
  margin-bottom: 48px;
  position: relative;
  overflow: hidden;
}
.glass-card.hero-section::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 2px;
  margin-bottom: 32px;
  top: 32px;
}
.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 18px;
  letter-spacing: 2px;
}
.hero-desc {
  font-size: 1.25rem;
  color: var(--color-secondary);
  margin-bottom: 40px;
}
.btn-primary {
  box-shadow: 0 2px 12px rgba(59,130,246,0.12);
}

/* Category Tabs 专属设计 */
.glass-card.category-tabs {
  background: var(--color-surface);
  border-radius: 999px;
  padding: 10px 32px;
  display: flex;
  gap: 8px;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(59,130,246,0.04), 0 1.5px 6px rgba(0,0,0,0.08);
  margin-bottom: 48px;
  position: relative;
}
.category-tab {
  color: var(--color-secondary);
  font-size: 1rem;
  font-weight: 500;
  padding: 8px 22px;
  border-radius: 999px;
  border: none;
  background: transparent;
  transition: color 0.2s, background 0.2s, box-shadow 0.2s;
  text-decoration: none;
  position: relative;
  z-index: 1;
}
.category-tab.active, .category-tab:hover {
  color: var(--color-primary);
  background: var(--color-accent);
  box-shadow: 0 2px 8px rgba(59,130,246,0.10);
}

@media (max-width: 900px) {
  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 18px;
  }
  .glass-card {
    padding: 12px;
  }
}
@media (max-width: 600px) {
  .hero-title {
    font-size: 2rem;
  }
  .product-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .glass-card {
    padding: 8px;
  }
}
@media (max-width: 700px) {
  .glass-card.hero-section {
    padding: 32px 8px 32px 8px;
    margin-top: 24px;
    margin-bottom: 32px;
  }
  .hero-title {
    font-size: 2rem;
  }
  .glass-card.category-tabs {
    padding: 6px 4px;
    gap: 4px;
  }
  .category-tab {
    padding: 6px 10px;
    font-size: 0.95rem;
  }
}