/**
 * 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-brand);
  -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(--primary-blue); background: rgba(255,255,255,.12); }

/* 标签筛选栏（原创科普区内，不吸顶——吸顶位留给区块锚点导航，避免两条 sticky 冲突） */
.sci-filter-bar {
  background: var(--bg-card); border-bottom: 1px solid var(--border-light);
  padding: 14px 0;
}
.sci-filter-inline {
  border: 1px solid var(--border-light); border-radius: var(--r-md);
  padding: 12px 16px; margin-bottom: 28px;
}
.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(--primary-blue); color: var(--primary-blue); }
.sci-tag.active {
  background: var(--gradient-brand); color: #fff; border-color: transparent;
  box-shadow: 0 4px 12px rgba(91,108,255,.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(91,108,255,.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(--primary-blue); background: rgba(91,108,255,.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; }
}

/* ============ 基于文献 · 6 篇 PMID ============ */
.sci-evidence { background: #FAFBFE; }
.sci-evidence .section-eyebrow { color: var(--primary-blue); }
.sci-evidence-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
}
.sci-evidence-hero {
  margin: 0; position: sticky; top: calc(var(--nav-h) + 24px);
  border-radius: 18px; overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(91,108,255,0.18);
  aspect-ratio: 4/5;
}
.sci-evidence-hero img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.sci-evidence-hero figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 22px 24px;
  background: linear-gradient(180deg, transparent 0%, rgba(6,9,26,0.92) 60%);
  color: #fff;
}
.sei-title {
  font-size: 22px; font-weight: 800; line-height: 1.35; letter-spacing: 0.5px;
  margin-bottom: 6px;
  background: linear-gradient(135deg, #00E5C7 0%, #5B6CFF 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.sei-meta {
  font-size: 13px; color: rgba(255,255,255,0.78);
  letter-spacing: 0.5px;
}
.sci-evidence-list {
  display: flex; flex-direction: column; gap: 14px;
}
.sci-paper {
  display: block; text-decoration: none; color: inherit;
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 14px;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s, border-color 0.25s;
}
.sci-paper:hover {
  transform: translateY(-2px);
  border-color: rgba(91,108,255,0.4);
  box-shadow: 0 8px 24px rgba(91,108,255,0.1);
}
.sci-paper-tag {
  display: inline-block;
  font-size: 12px; font-weight: 600;
  color: var(--primary-blue);
  background: rgba(91,108,255,0.08);
  border: 1px solid rgba(91,108,255,0.2);
  padding: 3px 10px; border-radius: 999px;
  margin-bottom: 10px;
}
.sci-paper-title {
  font-family: var(--font-en);
  font-size: 15px; font-weight: 700; line-height: 1.5;
  color: var(--text-dark);
  margin-bottom: 6px;
}
.sci-paper-authors {
  font-size: 12.5px; color: var(--text-mid); margin-bottom: 8px;
  font-family: var(--font-en);
}
.sci-paper-meta {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 6px;
  font-size: 12px; color: var(--text-light);
  margin-bottom: 8px;
}
.sci-paper-meta .journal {
  font-weight: 600; color: var(--text-mid);
  font-family: var(--font-en);
}
.sci-paper-meta .dot { color: var(--border-light); }
.sci-paper-meta .pmid {
  font-family: var(--font-en);
  color: var(--primary-blue); font-weight: 600;
}
.sci-paper-quote {
  font-size: 13.5px; line-height: 1.6;
  color: var(--text-mid); font-style: italic;
  padding-top: 8px;
  border-top: 1px dashed var(--border-light);
}
.sci-evidence-foot {
  margin-top: 36px;
  display: flex; flex-wrap: wrap; gap: 16px;
  align-items: center; justify-content: center;
}
.sefp {
  font-size: 13px; color: var(--text-mid);
  padding: 10px 18px;
  background: rgba(91,108,255,0.05);
  border-radius: 999px;
  border: 1px solid rgba(91,108,255,0.12);
}

@media (max-width: 900px) {
  .sci-evidence-grid { grid-template-columns: 1fr; }
  .sci-evidence-hero { position: relative; top: auto; aspect-ratio: 16/9; }
}
@media (max-width: 560px) {
  .sci-paper-title { font-size: 14px; }
}

/* ============ 基于文献 · 三段式 ============ */
.evidence-block { margin-top: 64px; }
.evidence-block:first-of-type { margin-top: 48px; }

.eb-header {
  display: flex; align-items: flex-start; gap: 18px;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-light);
}
.eb-num {
  flex-shrink: 0;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #5B6CFF 0%, #8B5CF6 100%);
  color: #fff;
  font-size: 18px; font-weight: 800;
  border-radius: 12px;
  letter-spacing: 0.5px;
  box-shadow: 0 6px 18px rgba(91,108,255,0.28);
}
.eb-title {
  font-size: 22px; font-weight: 800; line-height: 1.3;
  color: var(--text-dark);
  margin-bottom: 6px;
}
.eb-desc {
  font-size: 14.5px; color: var(--text-mid);
  line-height: 1.6;
}

/* Section A · 三栏网格 */
.paper-grid {
  display: grid;
  gap: 18px;
}
.paper-grid-3 { grid-template-columns: repeat(3, 1fr); }
.paper-grid-2 { grid-template-columns: repeat(2, 1fr); }

/* Section B · 按激素分类 */
.hormone-group {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px dashed var(--border-light);
}
.hormone-group:first-of-type { border-top: 0; padding-top: 0; margin-top: 12px; }
.hormone-name {
  display: flex; align-items: center; gap: 10px;
  font-size: 18px; font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 6px;
}
.horm-dot {
  display: inline-block;
  width: 12px; height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot-cortisol  { background: #00E5C7; box-shadow: 0 0 8px rgba(0,229,199,0.6); }
.dot-dhea      { background: #5B6CFF; box-shadow: 0 0 8px rgba(91,108,255,0.6); }
.dot-melatonin { background: #8B5CF6; box-shadow: 0 0 8px rgba(139,92,246,0.6); }
.dot-estradiol { background: #F472B6; box-shadow: 0 0 8px rgba(244,114,182,0.6); }
.dot-testosterone { background: #FF8A65; box-shadow: 0 0 8px rgba(255,138,101,0.6); }
.dot-crp       { background: #FFC857; box-shadow: 0 0 8px rgba(255,200,87,0.6); }

.hormone-context {
  font-size: 13.5px; color: var(--text-mid);
  margin-bottom: 16px; padding-left: 22px;
  line-height: 1.55;
}

/* 论文卡片 */
.paper-card {
  display: block; text-decoration: none; color: inherit;
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 14px;
  margin-bottom: 14px;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s, border-color 0.25s;
}
.paper-card:hover {
  transform: translateY(-2px);
  border-color: rgba(91,108,255,0.4);
  box-shadow: 0 8px 24px rgba(91,108,255,0.12);
}
.pc-tag {
  display: inline-block;
  font-size: 11.5px; font-weight: 700;
  color: var(--primary-blue);
  background: rgba(91,108,255,0.08);
  border: 1px solid rgba(91,108,255,0.2);
  padding: 4px 10px; border-radius: 999px;
  margin-bottom: 10px;
  letter-spacing: 0.3px;
}
.pc-title {
  font-family: var(--font-en);
  font-size: 14.5px; font-weight: 700; line-height: 1.5;
  color: var(--text-dark);
  margin-bottom: 6px;
}
.pc-authors {
  font-size: 12px; color: var(--text-mid); margin-bottom: 8px;
  font-family: var(--font-en);
  font-style: italic;
}
.pc-meta {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 6px;
  font-size: 11.5px; color: var(--text-light);
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--border-light);
}
.pc-meta .journal {
  font-weight: 600; color: var(--text-mid);
  font-family: var(--font-en);
}
.pc-meta .dot { color: var(--border-light); }
.pc-meta .pmid {
  font-family: var(--font-en);
  color: var(--primary-blue); font-weight: 700;
}
.pc-takehome {
  font-size: 13px; line-height: 1.65;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.pc-takehome strong {
  color: var(--primary-blue);
  font-weight: 700;
}
.pc-why {
  font-size: 13px; line-height: 1.65;
  color: var(--text-mid);
  padding: 10px 12px;
  background: rgba(0,229,199,0.06);
  border-left: 3px solid var(--accent-teal, #00E5C7);
  border-radius: 0 8px 8px 0;
}
.pc-why strong {
  color: var(--accent-teal, #00E5C7);
  font-weight: 700;
}

/* 响应式 */
@media (max-width: 1024px) {
  .paper-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .paper-grid-3, .paper-grid-2 { grid-template-columns: 1fr; }
  .eb-header { gap: 12px; }
  .eb-num { width: 38px; height: 38px; font-size: 16px; }
  .eb-title { font-size: 19px; }
  .pc-title { font-size: 13.5px; }
}

/* ============ 持续更新标识（文章数量不再展示） ============ */
.sci-count-suffix {
  font-weight: 600;
  color: var(--text-dark);
}
.sci-live {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-teal, #00E5C7);
  padding: 3px 10px;
  border: 1px solid rgba(0, 229, 199, 0.3);
  border-radius: 999px;
  background: rgba(0, 229, 199, 0.06);
  vertical-align: middle;
}
.sci-live-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #00E5C7;
  box-shadow: 0 0 0 0 rgba(0, 229, 199, 0.6);
  animation: sci-live-pulse 1.8s ease-out infinite;
}
@keyframes sci-live-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(0, 229, 199, 0.7); }
  70%  { box-shadow: 0 0 0 8px rgba(0, 229, 199, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 229, 199, 0); }
}
@media (max-width: 560px) {
  .sci-live { display: inline-flex; margin-top: 6px; }
  .page-hero-lead { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
}

/* ============ 区块锚点导航（科普/文献切换） ============ */
.sci-section-nav {
  position: sticky; top: var(--nav-h);
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  padding: 14px 0;
  margin-bottom: 24px;
}
.sci-section-nav .container {
  display: flex; gap: 12px; justify-content: center;
}
.sci-nav-tab {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 22px;
  border-radius: 999px;
  background: var(--bg-light);
  color: var(--text-mid);
  font-size: 14px; font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border-light);
  transition: all .25s var(--ease-out);
}
.sci-nav-tab:hover { color: var(--primary-blue); border-color: rgba(91,108,255,0.3); transform: translateY(-1px); }
.sci-nav-tab.active {
  background: linear-gradient(135deg, #5B6CFF 0%, #00E5C7 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(91,108,255,0.3);
}
.sci-nav-tab.active .sci-nav-icon { filter: drop-shadow(0 1px 2px rgba(0,0,0,0.15)); }
.sci-nav-icon { font-size: 16px; line-height: 1; }
@media (max-width: 640px) {
  .sci-nav-tab { padding: 8px 14px; font-size: 13px; }
  .sci-nav-tab .sci-nav-icon { font-size: 14px; }
}

/* ============================================================
   移动端收口（2026-09-16）—— 一律追加在文件末尾
   修复点：① .pc-tag/.pc-meta 11.5px 元信息在手机上过小；
          ② 768px 断点里把 .pc-title 从 14.5px 缩到 13.5px、.sci-tag
             内边距缩到 6px 14px（点击目标只剩约 30px），方向反了；
          ③ 搜索框 15px 在 iOS 上聚焦会自动放大页面。
   ============================================================ */
@media (max-width: 768px) {
  .sci-tag {
    padding: 10px 16px; font-size: 13px;
    display: inline-flex; align-items: center; min-height: 40px;
  }
  .sci-nav-tab { padding: 11px 18px; font-size: 13.5px; min-height: 44px; }
  .paper-card { padding: 18px 16px; }
  .pc-tag { font-size: 12.5px; padding: 5px 11px; }
  .pc-title { font-size: 14px; }
  .pc-authors { font-size: 12.5px; }
  .pc-meta { font-size: 12.5px; }
  .pc-takehome, .pc-why { font-size: 13.5px; }
  .sci-card-body { padding: 16px 16px 14px; }
  .sci-card-summary { font-size: 13.5px; }
  .sefp { font-size: 12.5px; padding: 9px 16px; }
  .eb-header { gap: 12px; }
  .eb-desc { font-size: 14px; }
}

@media (max-width: 560px) {
  /* iOS 聚焦放大阈值是 16px，搜索框必须给到 16px，否则输入时整页被缩放 */
  .sci-search input { width: 100%; box-sizing: border-box; padding: 13px 18px; font-size: 16px; }
  .page-hero-h1 { letter-spacing: -0.6px; }
  .sci-section-nav .container { gap: 8px; padding-left: 16px; padding-right: 16px; }
  .sci-nav-tab { padding: 10px 14px; font-size: 13px; }
  .sci-paper { padding: 16px; }
  .sci-tag { font-size: 12.5px; padding: 9px 14px; }
  .pc-why { padding: 9px 11px; }
  .sci-evidence-foot { gap: 10px; margin-top: 28px; }
}

/* ============================================================
   移动端收口（2026-09-16 · 二轮）
   ============================================================ */
@media (max-width: 768px) {
  /* 文献卡底部的期号/年份 + 分类胶囊：12px 在 375px 屏上偏小 */
  .sci-card-meta { font-size: 12.5px; }
}