/* ========================================
   Life Emergence - Scene Page Styles
   ======================================== */

/* ---- Page Header ---- */
.page-header {
  padding: calc(64px + var(--spacing-2xl)) 0 var(--spacing-xl);
  text-align: center;
  background: linear-gradient(180deg, #f5f5f7 0%, white 100%);
}

.scene-search {
  max-width: 500px;
  margin: var(--spacing-lg) auto 0;
  position: relative;
}

.scene-search__input {
  width: 100%;
  padding: 14px 20px 14px 48px;
  font-size: 1rem;
  font-family: var(--font-sf);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--radius-xl);
  background: white;
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.04),
    0 1px 2px rgba(0, 0, 0, 0.02);
  color: var(--gray-1);
  outline: none;
  transition: all 0.2s ease;
  text-align: left;
}

.scene-search__input:focus {
  border-color: var(--apple-blue);
  box-shadow:
    0 4px 16px rgba(0, 122, 255, 0.12),
    0 2px 4px rgba(0, 0, 0, 0.04);
}

.scene-search__input::placeholder {
  color: var(--gray-5);
}

.scene-search__icon {
  position: absolute;
  left: 16px;
  top: 10px;
  font-size: 1.25rem;
  pointer-events: none;
}

.scene-filter {
  margin-top: -40px;  /* 筛选栏整体向上移动 40px */
}

.page-header__title {
  margin-bottom: var(--spacing-sm);
}

.page-header__subtitle {
  font-size: 1.125rem;
  color: var(--gray-4);
  max-width: 600px;
  margin: 0 auto;
}

/* ---- Scene Filter ---- */
.scene-filter {
  padding: var(--spacing-lg) 0;
  background: white;
  position: sticky;
  top: 64px;
  z-index: 100;
  border-bottom: var(--border-thin);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.filter-bar {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-3);
  background: var(--gray-8);
  border: none;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-sf);
}

.filter-btn:hover {
  background: var(--gray-7);
  color: var(--gray-1);
}

.filter-btn.active {
  background: var(--gray-1);
  color: white;
}

.filter-count {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 0.8em;
  margin-left: 4px;
}

.filter-btn:not(.active) .filter-count {
  background: var(--gray-7);
  color: var(--gray-3);
}

/* ---- Series Section ---- */
.series-section {
  padding: var(--spacing-2xl) 0;
}

.series-section:nth-child(odd) {
  background: white;
}

.series-section:nth-child(even) {
  background: var(--gray-9);
}

.series-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-md);
  border-bottom: var(--border-thin);
  justify-content: space-between;
}

.series-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
}

.series-icon--blue {
  background: linear-gradient(135deg, rgba(0, 122, 255, 0.12), rgba(0, 122, 255, 0.06));
}

.series-icon--green {
  background: linear-gradient(135deg, rgba(52, 199, 89, 0.12), rgba(52, 199, 89, 0.06));
}

.series-icon--orange {
  background: linear-gradient(135deg, rgba(255, 149, 0, 0.12), rgba(255, 149, 0, 0.06));
}

.series-icon--purple {
  background: linear-gradient(135deg, rgba(175, 82, 222, 0.12), rgba(175, 82, 222, 0.06));
}

.series-icon--cyan {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.12), rgba(6, 182, 212, 0.06));
}

.series-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-md);
  border-bottom: var(--border-thin);
}

.series-toggle {
  margin-left: auto;
}

.toggle-btn {
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--apple-blue);
  background: rgba(0, 122, 255, 0.08);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-sf);
}

.toggle-btn:hover {
  background: rgba(0, 122, 255, 0.15);
}

.toggle-btn:active {
  transform: scale(0.98);
}

.skill-hidden-items {
  display: contents;
}

.series-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--gray-1);
  letter-spacing: -0.02em;
}

.series-desc {
  color: var(--gray-4);
  font-size: 0.95rem;
  margin-top: 4px;
}

/* ---- Skill Cards ---- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--spacing-md);
}

.skill-card {
  background: white;
  border-radius: var(--radius-xl);
  border: var(--border-thin);
  padding: var(--spacing-lg);
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.skill-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--apple-blue), var(--apple-green));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.skill-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
  border-color: rgba(0, 122, 255, 0.15);
}

.skill-card:hover::after {
  opacity: 1;
}

.skill-card:hover .skill-card__desc {
  -webkit-line-clamp: unset;
  max-height: none;
}

.skill-card__header {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.skill-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  background: var(--gray-8);
}

.skill-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-1);
  line-height: 1.3;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.skill-card:hover .skill-card__title {
  white-space: normal;
  overflow: visible;
}

.skill-card__desc {
  color: var(--gray-4);
  font-size: 0.9rem;
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  max-height: calc(0.9rem * 1.6 * 4);
  margin-bottom: var(--spacing-md);
}

.skill-card__links {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: var(--spacing-sm);
  border-top: var(--border-thin);
}

.skill-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gray-3);
  background: var(--gray-8);
  border-radius: 100px;
  transition: all 0.2s ease;
}

.skill-link:hover {
  background: rgba(0, 122, 255, 0.08);
  color: var(--apple-blue);
  opacity: 1;
}

.skill-link__icon {
  font-size: 0.9rem;
}

/* 图标链接样式 */
.skill-link--icon {
  padding: 6px;
  min-width: 32px;
  min-height: 32px;
  justify-content: center;
}

.skill-link__img {
  width: 18px;
  height: 18px;
  object-fit: contain;
  vertical-align: middle;
  filter: grayscale(50%);
  opacity: 0.7;
  transition: all 0.2s ease;
}

.skill-link--icon:hover .skill-link__img {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.1);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-header {
    padding-top: calc(64px + var(--spacing-lg));
  }
  
  .series-header {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
  }
  
  .series-icon {
    width: 56px;
    height: 56px;
    font-size: 1.75rem;
  }
  
  .series-title {
    font-size: 1.35rem;
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-bar {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: var(--spacing-xs);
    -webkit-overflow-scrolling: touch;
  }
  
  .filter-btn {
    flex-shrink: 0;
  }
}

@media (max-width: 480px) {
  .skill-card {
    padding: var(--spacing-md);
  }
  
  .skill-card__header {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
}


/* ---- 卡片可点击 + 图标居中 ---- */
.skill-card--clickable {
  cursor: pointer;
}

/* 已经在上面改了 justify-content: center */