/* ========== ai-tool-website.html - 灵感广场 ========== */

/* Fluid Typography & Spacing */
:root {
  --text-xs: clamp(0.8125rem, 0.75rem + 0.3vw, 0.875rem);
  --text-sm: clamp(0.9375rem, 0.875rem + 0.3vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(2rem, 1.75rem + 1.25vw, 2.375rem);

  --space-xs: clamp(0.25rem, 0.2rem + 0.25vw, 0.5rem);
  --space-sm: clamp(0.5rem, 0.4rem + 0.5vw, 0.75rem);
  --space-md: clamp(1rem, 0.8rem + 1vw, 1.5rem);
  --space-lg: clamp(1.5rem, 1.2rem + 1.5vw, 2.5rem);
  --space-xl: clamp(2rem, 1.5rem + 2.5vw, 4rem);
}

.page-title {
  text-align: center;
  font-size: 26px;
  font-weight: 700;
  font-family: "Microsoft YaHei", sans-serif;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.page-description {
  text-align: center;
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-top: 12px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
  padding: 0 8px;
}

/* Categories */
.categories-section {
  margin-top: 28px;
  overflow: hidden;
}

.categories-wrapper {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 0 12px;
  scrollbar-width: none;
  -ms-overflow-style: none;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
}

.categories-wrapper::-webkit-scrollbar {
  display: none;
}

.category-tag {
  flex-shrink: 0;
  padding: 10px 20px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  font-size: 15px;
  line-height: 1.25rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  user-select: none;
  border: none;
  -webkit-tap-highlight-color: transparent;
}

.category-tag:hover {
  color: var(--color-primary);
  background: #f5f3ff;
}

.category-tag.active {
  background: var(--color-primary);
  color: white;
}

/* Content Cards Grid */
.cards-section {
  margin-top: 24px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.card-item {
  container-type: inline-size;
  container-name: card;
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  -webkit-tap-highlight-color: transparent;
}

.card-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.card-item:active {
  transform: scale(0.98);
}

.card-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.card-images.single {
  grid-template-columns: 1fr;
}

.card-images img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
  background: linear-gradient(135deg, #f0f0f0, #e0e0e0);
}

.card-item:hover .card-images img {
  transform: scale(1.03);
}

.card-info {
  padding: 12px 14px;
}

.card-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 13px;
  color: var(--color-text-muted);
}

/* Container query for cards */
@container card (min-width: 280px) {
  .card-info {
    padding: 14px 16px;
  }
  .card-title {
    font-size: 16px;
  }
}

/* ========== Responsive: Tablet ========== */
@media (min-width: 768px) {
  .page-title {
    font-size: 32px;
  }

  .page-description {
    font-size: 17px;
    margin-top: 16px;
  }

  .categories-section {
    margin-top: 48px;
  }

  .categories-wrapper {
    flex-wrap: wrap;
    justify-content: center;
    overflow-x: visible;
  }

  .category-tag {
    font-size: .875rem;
    padding: 8px 18px;
  }

  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .cards-section {
    margin-top: 36px;
  }

  .card-images {
    aspect-ratio: 16/9;
  }
}

/* ========== Responsive: Desktop ========== */
@media (min-width: 1024px) {
  .content-area {
    padding: 80px 48px 48px;
    margin: 0 auto;
  }

  .page-title {
    font-size: 38px;
  }

  .page-description {
    font-size: 18px;
    margin-top: 18px;
  }

  .categories-section {
    margin-top: 80px;
  }

  .category-tag {
    font-size: .875rem;
    line-height: 1.25rem;
    padding: 8px 18px;
  }

  .cards-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
  }

  .card-item {
    border-radius: var(--radius-lg);
  }

  .card-images {
    aspect-ratio: 16/9;
  }
}

/* ========== Responsive: Large Desktop ========== */
@media (min-width: 1536px) {
  .content-area {
    padding: 80px 64px 48px;
  }

  .cards-grid {
    gap: 24px;
  }
}

/* Touch-friendly */
@media (pointer: coarse) {
  .category-tag {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .card-item:active {
    transform: scale(0.97);
  }
}

/* Small phones */
@media (max-width: 374px) {
  .page-title {
    font-size: 22px;
  }

  .page-description {
    font-size: 14px;
  }

  .category-tag {
    padding: 8px 14px;
    font-size: 14px;
  }

  .card-title {
    font-size: 13px;
  }

  .cards-grid {
    gap: 10px;
  }
}