/**
 * /zixun/ · /tiyu/redian/ 列表页新一代布局（与经典 .news-list 网格无关）
 * 作用域：.lv2-hub；紧随 theme.css。
 *
 * layout 资讯壳给 #main-content 浅色底：时间轴列表多为透明背景，若沿用「深色页」浅色字会叠在浅底上不可读。
 * 默认令牌面向浅色主内容（深色字）；仅 .lv2-hub__hero 深色顶块内单独恢复浅色字。
 */
.ac-root .lv2-hub {
  --lv2-fg: #0f172a;
  --lv2-muted: #64748b;
  --lv2-line: rgba(15, 23, 42, 0.12);
  --lv2-card-bg: rgba(255, 255, 255, 0.85);
  --lv2-accent: #0891b2;
  --lv2-accent2: #2563eb;
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(18px, 3vw, 28px) 18px clamp(40px, 6vw, 64px);
}

.ac-root .lv2-hub--hot {
  --lv2-accent: #ea580c;
  --lv2-accent2: #f97316;
}

.ac-root .lv2-hub__hero {
  /* 深色磨砂顶块：浅色前景（与子级时间轴的深色字令牌切割） */
  --lv2-fg: #f8fafc;
  --lv2-muted: #94a3b8;
  --lv2-line: rgba(165, 243, 252, 0.14);
  --lv2-accent: #67e8f9;
  --lv2-accent2: #38bdf8;
  position: relative;
  margin-bottom: clamp(22px, 4vw, 36px);
  padding: clamp(22px, 4vw, 32px) clamp(18px, 3vw, 28px);
  border-radius: 20px;
  border: 1px solid var(--lv2-line);
  background: linear-gradient(
    145deg,
    rgba(18, 36, 58, 0.88) 0%,
    rgba(10, 22, 40, 0.92) 48%,
    rgba(12, 28, 48, 0.85) 100%
  );
  box-shadow: 0 24px 56px rgba(0, 12, 32, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  overflow: hidden;
}

.ac-root .lv2-hub--hot .lv2-hub__hero {
  --lv2-accent: #fb923c;
  --lv2-accent2: #fbbf24;
}

.ac-root .lv2-hub__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 92% -10%, rgba(56, 189, 248, 0.18), transparent 52%),
    radial-gradient(ellipse 55% 45% at -5% 105%, rgba(251, 146, 60, 0.12), transparent 48%);
  pointer-events: none;
}

.ac-root .lv2-hub--zixun .lv2-hub__hero::before {
  background:
    radial-gradient(ellipse 70% 55% at 92% -10%, rgba(56, 189, 248, 0.22), transparent 52%),
    radial-gradient(ellipse 50% 40% at 0% 100%, rgba(34, 211, 238, 0.1), transparent 50%);
}

.ac-root .lv2-hub__hero-inner {
  position: relative;
  z-index: 1;
}

.ac-root .lv2-hub__crumb {
  font-size: 13px;
  color: var(--lv2-muted);
  margin-bottom: 14px;
}

.ac-root .lv2-hub__crumb a {
  color: var(--lv2-accent);
  text-decoration: none;
  font-weight: 650;
}

.ac-root .lv2-hub__crumb a:hover {
  text-decoration: underline;
}

.ac-root .lv2-hub__badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 12px;
  border: 1px solid rgba(34, 211, 238, 0.28);
  background: rgba(34, 211, 238, 0.1);
  color: #a5f3fc;
}

.ac-root .lv2-hub--hot .lv2-hub__badge {
  border-color: rgba(251, 146, 60, 0.35);
  background: rgba(251, 146, 60, 0.12);
  color: #fed7aa;
}

.ac-root .lv2-hub__title {
  margin: 0 0 10px;
  font-size: clamp(1.45rem, 3.2vw, 2rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--lv2-fg);
}

.ac-root .lv2-hub__lead {
  margin: 0;
  max-width: 56ch;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--lv2-muted);
}

/* 时间轴列表 */
.ac-root .lv2-stream {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
  padding: 0 0 8px;
}

.ac-root .lv2-stream--empty::before {
  display: none;
}

.ac-root .lv2-stream::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(
    180deg,
    rgba(34, 211, 238, 0.45),
    rgba(56, 189, 248, 0.15) 55%,
    rgba(251, 146, 60, 0.2)
  );
  opacity: 0.55;
}

@media (min-width: 720px) {
  .ac-root .lv2-stream::before {
    left: 21px;
  }
}

.ac-root .lv2-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 16px;
  align-items: stretch;
  padding: 16px 0 20px;
  margin-left: 0;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  transition:
    background 0.2s ease,
    transform 0.18s ease;
}

@media (min-width: 720px) {
  .ac-root .lv2-card {
    gap: 0 22px;
    padding: 18px 14px 22px 8px;
    margin-left: -8px;
    border-radius: 16px;
    border-bottom: none;
  }

  .ac-root .lv2-card:hover {
    background: rgba(8, 145, 178, 0.08);
    transform: translateX(4px);
  }
}

.ac-root .lv2-card:last-child {
  border-bottom: none;
}

.ac-root .lv2-card__rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 6px;
  width: 36px;
  flex-shrink: 0;
}

@media (min-width: 720px) {
  .ac-root .lv2-card__rail {
    width: 44px;
  }
}

.ac-root .lv2-card__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-top: 6px;
  background: linear-gradient(145deg, var(--lv2-accent), var(--lv2-accent2));
  box-shadow: 0 0 0 4px rgba(15, 23, 42, 0.55), 0 0 18px rgba(34, 211, 238, 0.35);
}

.ac-root .lv2-hub--hot .lv2-card__dot {
  box-shadow: 0 0 0 4px rgba(15, 23, 42, 0.55), 0 0 18px rgba(251, 146, 60, 0.35);
}

.ac-root .lv2-card__time {
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.04em;
  color: var(--lv2-muted);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  max-height: 7.5rem;
  line-height: 1.35;
}

@media (max-width: 719px) {
  .ac-root .lv2-card__time {
    writing-mode: horizontal-tb;
    max-height: none;
    font-size: 12px;
  }
}

.ac-root .lv2-card__body {
  padding: 4px 0 0;
  min-width: 0;
}

.ac-root .lv2-card__title {
  margin: 0 0 8px;
  font-size: clamp(1.02rem, 2vw, 1.18rem);
  font-weight: 850;
  line-height: 1.38;
  color: var(--lv2-fg);
}

.ac-root .lv2-card__excerpt {
  margin: 0 0 12px;
  font-size: 0.9rem;
  line-height: 1.62;
  color: var(--lv2-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ac-root .lv2-card__more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--lv2-accent);
}

.ac-root .lv2-empty {
  padding: 36px 22px;
  border-radius: 16px;
  border: 1px dashed rgba(165, 243, 252, 0.22);
  background: rgba(12, 24, 42, 0.5);
  text-align: center;
}

.ac-root .lv2-empty__title {
  margin: 0 0 8px;
  font-weight: 850;
  font-size: 1.1rem;
  color: #f8fafc;
}

.ac-root .lv2-empty__desc {
  margin: 0;
  font-size: 0.92rem;
  color: #cbd5e1;
}

/* 推荐阅读：横向磁贴 */
.ac-root .lv2-reco {
  margin-top: clamp(32px, 5vw, 48px);
  padding-top: clamp(24px, 4vw, 32px);
  border-top: 1px solid var(--lv2-line);
}

.ac-root .lv2-reco__head {
  margin-bottom: 16px;
}

.ac-root .lv2-reco__title {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--lv2-fg);
}

.ac-root .lv2-reco__desc {
  margin: 0;
  font-size: 0.88rem;
  color: var(--lv2-muted);
  max-width: 52ch;
}

.ac-root .lv2-reco__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.ac-root .lv2-reco__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--lv2-line);
  background: rgba(18, 34, 54, 0.65);
  text-decoration: none;
  color: inherit;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.18s ease;
}

.ac-root .lv2-reco__item:hover {
  border-color: rgba(34, 211, 238, 0.35);
  box-shadow: 0 14px 36px rgba(0, 20, 45, 0.35);
  transform: translateY(-2px);
}

.ac-root .lv2-reco__item-title {
  font-weight: 800;
  font-size: 0.95rem;
  line-height: 1.45;
  color: #f8fafc;
}

.ac-root .lv2-reco__item-meta {
  font-size: 11px;
  font-weight: 650;
  color: #94a3b8;
}

/* 分页：胶囊条 */
.ac-root .lv2-pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: clamp(28px, 5vw, 40px);
  padding-top: 8px;
}

.ac-root .lv2-pager a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: rgba(255, 255, 255, 0.95);
  color: #475569;
  transition:
    background 0.18s ease,
    color 0.18s ease,
    border-color 0.18s ease;
}

.ac-root .lv2-pager a:hover {
  color: #0f172a;
  border-color: rgba(8, 145, 178, 0.35);
  background: rgba(236, 254, 255, 0.98);
}

.ac-root .lv2-pager a.lv2-pager__active {
  color: #042f2e;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent, #14b8a6), var(--accent-blue, #2563eb));
  box-shadow: 0 10px 28px rgba(34, 211, 238, 0.25);
}