/**
 * HormLab Portal · 科普中心页样式
 */

/* 页头 */
.page-hero-h1 { font-size: clamp(30px, 4.6vw, 44px); font-weight: 800; line-height: 1.25; margin: 18px 0 16px; letter-spacing: -1px; color: #fff; }
.page-hero-lead { color: var(--text-white-soft); font-size: 17px; margin: 0 auto; }
.page-hero-h1 .accent {
  background: var(--gradient-gold);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 搜索框 */
.sci-search { margin-top: 28px; }
.sci-search input {
  width: min(560px, 92%); padding: 14px 22px;
  border-radius: var(--r-pill); border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.08); color: #fff;
  font-size: 15px; outline: none; backdrop-filter: blur(8px);
  transition: border-color .25s ease, background .25s ease;
}
.sci-search input::placeholder { color: var(--text-white-muted); }
.sci-search input:focus { border-color: var(--gold); background: rgba(255,255,255,.12); }

/* 标签筛选栏 */
.sci-filter-bar {
  background: var(--bg-card); border-bottom: 1px solid var(--border-light);
  position: sticky; top: var(--nav-h); z-index: 50;
  padding: 14px 0;
}
.sci-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.sci-tag {
  padding: 8px 18px; border-radius: var(--r-pill);
  border: 1px solid var(--border-light); background: var(--bg-light);
  color: var(--text-mid); font-size: 13.5px; font-weight: 500; cursor: pointer;
  transition: all .2s ease;
}
.sci-tag:hover { border-color: var(--gold); color: var(--gold-deep); }
.sci-tag.active {
  background: var(--gradient-gold); color: #fff; border-color: transparent;
  box-shadow: 0 4px 12px rgba(212,162,78,.3);
}

/* 文章卡片 */
.sci-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}
.sci-card {
  background: var(--bg-card); border: 1px solid var(--border-light);
  border-radius: var(--r-lg); overflow: hidden; text-decoration: none;
  display: flex; flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.sci-card:hover {
  transform: translateY(-5px); box-shadow: var(--shadow-lg);
  border-color: rgba(212,162,78,.4);
}
.sci-card-cover { aspect-ratio: 16/9; overflow: hidden; background: var(--bg-light); }
.sci-card-cover img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
}
.sci-card:hover .sci-card-cover img { transform: scale(1.04); }
.sci-card-body { padding: 18px 20px 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.sci-card-title {
  font-size: 16px; font-weight: 700; color: var(--text-dark); line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.sci-card-summary {
  font-size: 13px; color: var(--text-light); line-height: 1.65;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  flex: 1;
}
.sci-card-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--text-light); padding-top: 10px;
  border-top: 1px dashed var(--border-light);
}
.sci-card-tag {
  color: var(--gold-deep); background: rgba(212,162,78,.1);
  padding: 2px 10px; border-radius: var(--r-pill); font-weight: 500;
}

/* 空状态 */
.sci-empty { text-align: center; padding: 60px 0 30px; }
.sci-empty-icon { font-size: 44px; margin-bottom: 12px; }
.sci-empty p { color: var(--text-light); font-size: 15px; }

/* 加载更多 */
.sci-more { text-align: center; margin-top: 36px; }
.sci-more button[hidden] { display: none; }

/* 响应式 */
@media (max-width: 768px) {
  .sci-grid { grid-template-columns: 1fr; }
  .sci-filter-bar { top: calc(var(--nav-h) - 8px); }
  .sci-tag { padding: 6px 14px; font-size: 12.5px; }
}

@media (prefers-reduced-motion: reduce) {
  .sci-card, .sci-card-cover img, .sci-tag { transition: none; }
}