/* ============================================================
   yq-insights.css — 研究院洞察：文章列表 + 文章详情
   视觉语言对齐 umi6 设计层（浅蓝灰底、白卡片、蓝色渐变强调）
   ============================================================ */
.yqi {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: #1e293b;
  background: #f6f8fc;
}
.yqi-container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ---------- 头部 ---------- */
.yqi-hero {
  padding: 68px 0 40px;
  background:
    radial-gradient(900px 320px at 12% -10%, rgba(59, 130, 246, .16), transparent 70%),
    radial-gradient(700px 300px at 88% 0%, rgba(139, 92, 246, .14), transparent 72%),
    #f6f8fc;
}
.yqi-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: #94a3b8;
  margin-bottom: 18px;
}
.yqi-crumb a { color: #94a3b8; text-decoration: none; }
.yqi-crumb a:hover { color: #2563eb; }

.yqi-kicker {
  display: inline-block;
  padding: 5px 12px;
  margin-bottom: 14px;
  font-size: 12px;
  font-weight: 600;
  color: #2563eb;
  background: #e8f1ff;
  border-radius: 999px;
}
.yqi-title {
  margin: 0 0 12px;
  font-size: 38px;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -.02em;
  color: #0f172a;
}
.yqi-lead {
  margin: 0;
  max-width: 720px;
  font-size: 15px;
  line-height: 1.75;
  color: #64748b;
}

/* ---------- 筛选 ---------- */
.yqi-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 18px 0 26px;
}
.yqi-chip {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: #475569;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  cursor: pointer;
  transition: all .15s;
}
.yqi-chip:hover { border-color: #bfdbfe; color: #2563eb; }
.yqi-chip.is-on {
  color: #fff;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(59, 130, 246, .28);
}
.yqi-count { margin-left: auto; font-size: 12.5px; color: #94a3b8; }

/* ---------- 卡片网格 ---------- */
.yqi-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  padding-bottom: 72px;
}
.yqi-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e8eef7;
  border-radius: 18px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.yqi-card:hover {
  transform: translateY(-3px);
  border-color: #dbeafe;
  box-shadow: 0 16px 40px rgba(37, 99, 235, .12);
}
.yqi-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #dbeafe 0%, #ede9fe 100%);
  background-size: cover;
  background-position: center;
}
.yqi-cover--t1 { background-image: linear-gradient(135deg, #3b82f6, #8b5cf6); }
.yqi-cover--t2 { background-image: linear-gradient(135deg, #0ea5e9, #22d3ee); }
.yqi-cover--t3 { background-image: linear-gradient(135deg, #6366f1, #a855f7); }
.yqi-cover--t4 { background-image: linear-gradient(135deg, #10b981, #0ea5e9); }
.yqi-cover__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  font-size: 11.5px;
  font-weight: 600;
  color: #fff;
  background: rgba(15, 23, 42, .38);
  border-radius: 999px;
  backdrop-filter: blur(4px);
}
.yqi-body { display: flex; flex-direction: column; flex: 1; padding: 18px 20px 20px; }
.yqi-card-title {
  margin: 0 0 8px;
  font-size: 16.5px;
  line-height: 1.5;
  font-weight: 700;
  color: #0f172a;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.yqi-card-desc {
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.7;
  color: #64748b;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.yqi-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: #94a3b8;
}
.yqi-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: #cbd5e1; }
.yqi-more { margin-left: auto; color: #2563eb; font-weight: 600; }

.yqi-skel { height: 300px; border-radius: 18px; background: #fff; border: 1px solid #eef2f7; }
.yqi-empty {
  grid-column: 1 / -1;
  padding: 60px 20px;
  text-align: center;
  color: #94a3b8;
  font-size: 14px;
}

/* ---------- 文末 CTA ---------- */
.yqi-cta {
  margin: 0 0 80px;
  padding: 34px 36px;
  background: linear-gradient(135deg, #1e3a8a 0%, #4c1d95 100%);
  border-radius: 20px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.yqi-cta h3 { margin: 0 0 8px; font-size: 20px; font-weight: 700; }
.yqi-cta p { margin: 0; font-size: 13.5px; color: #c7d2fe; }
.yqi-cta .yqi-cta-btns { margin-left: auto; display: flex; gap: 12px; }
.yqi-cta-btn {
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  color: #1e3a8a;
  background: #fff;
  border: none;
  border-radius: 12px;
  cursor: pointer;
}
.yqi-cta-btn--ghost {
  color: #fff;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .32);
}

/* ---------- 文章详情 ---------- */
.yqa-wrap { padding: 108px 0 80px; }
.yqa-article {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}
.yqa-title {
  margin: 14px 0 16px;
  font-size: 34px;
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: -.02em;
  color: #0f172a;
}
.yqa-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-bottom: 22px;
  margin-bottom: 28px;
  border-bottom: 1px solid #e8eef7;
  font-size: 12.5px;
  color: #94a3b8;
}
.yqa-tag {
  padding: 4px 10px;
  color: #2563eb;
  background: #eff6ff;
  border-radius: 999px;
  font-weight: 600;
}
.yqa-cover {
  width: 100%;
  /* 竖图 / 长截图会被撑成几千像素高，这里按 16:9 裁一刀 */
  max-height: 400px;
  object-fit: cover;
  border-radius: 16px;
  margin-bottom: 28px;
  display: block;
  background: #f1f5f9;
}
.yqa-content { font-size: 16px; line-height: 1.9; color: #334155; }
.yqa-content > *:first-child { margin-top: 0; }
.yqa-content h2 { margin: 36px 0 14px; font-size: 22px; font-weight: 700; color: #0f172a; }
.yqa-content h3 { margin: 28px 0 12px; font-size: 18px; font-weight: 700; color: #0f172a; }
.yqa-content h4 { margin: 24px 0 10px; font-size: 16px; font-weight: 700; color: #0f172a; }
.yqa-content p { margin: 0 0 18px; }
.yqa-content ul, .yqa-content ol { margin: 0 0 18px; padding-left: 22px; }
.yqa-content li { margin-bottom: 8px; }
.yqa-content img {
  max-width: 100%;
  max-height: 520px;
  width: auto;
  border-radius: 12px;
  margin: 10px auto 20px;
  display: block;
}
.yqa-content strong { color: #0f172a; font-weight: 700; }
.yqa-content blockquote {
  margin: 0 0 20px;
  padding: 14px 18px;
  border-left: 3px solid #93c5fd;
  background: #f8fafc;
  border-radius: 0 10px 10px 0;
  color: #475569;
  font-size: 15px;
}
.yqa-content code {
  padding: 2px 6px;
  font-size: .9em;
  background: #f1f5f9;
  border-radius: 5px;
}
.yqa-content pre {
  margin: 0 0 20px;
  padding: 16px;
  overflow: auto;
  background: #0f172a;
  border-radius: 12px;
  color: #e2e8f0;
}
.yqa-content pre code { background: none; color: inherit; padding: 0; }
.yqa-content a { color: #2563eb; }
.yqa-content hr { margin: 32px 0; border: none; border-top: 1px solid #e8eef7; }

/* 图册：正文之外的多图（后台稿件「图册」字段） */
.yqa-gallery {
  margin: 30px 0 6px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.yqa-gallery figure { margin: 0; }
.yqa-gallery img {
  width: 100%; height: 160px; object-fit: cover; display: block;
  border-radius: 12px; border: 1px solid #e8eef7; background: #f8fafc;
}
.yqa-gallery figcaption { margin-top: 6px; font-size: 12.5px; color: #64748b; text-align: center; }

.yqa-foot {
  max-width: 800px;
  margin: 44px auto 0;
  padding: 26px 24px;
  background: #fff;
  border: 1px solid #e8eef7;
  border-radius: 18px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.yqa-foot h4 { margin: 0 0 6px; font-size: 16px; }
.yqa-foot p { margin: 0; font-size: 13px; color: #64748b; }
.yqa-foot-btns { margin-left: auto; display: flex; gap: 10px; }
.yqa-btn {
  padding: 11px 20px;
  font-size: 13.5px;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  border: none;
  border-radius: 11px;
  cursor: pointer;
}
.yqa-btn--ghost { color: #475569; background: #f1f5f9; }
.yqa-loading { padding: 80px 0; text-align: center; color: #94a3b8; font-size: 14px; }

@media (max-width: 980px) {
  .yqi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .yqi-title { font-size: 30px; }
}
@media (max-width: 640px) {
  .yqi-grid { grid-template-columns: 1fr; gap: 16px; }
  .yqi-hero { padding: 44px 0 26px; }
  .yqi-title { font-size: 25px; }
  .yqi-cta { padding: 26px 22px; }
  .yqi-cta .yqi-cta-btns { margin-left: 0; width: 100%; }
  .yqa-title { font-size: 25px; }
  .yqa-content { font-size: 15.5px; }
}