.topic-shell {
  padding-bottom: 40px;
}

.topic-hero-strip {
  position: relative;
  min-height: 280px;
  display: flex;
  align-items: flex-end;
  padding: 48px 24px 36px;
  overflow: hidden;
}

.topic-hero-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.45);
}

.topic-hero-strip::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 20%, rgba(2, 6, 23, 0.92));
}

.topic-hero-strip .page-wrap {
  position: relative;
  z-index: 1;
  width: 100%;
}

.topic-rtp .topic-hero-strip::before {
  background-image: url("/images/decorative/decor_4.webp");
}

.topic-choose .topic-hero-strip::before {
  background-image: url("/images/decorative/decor_5.webp");
}

.topic-tips .topic-hero-strip::before {
  background-image: url("/images/decorative/decor_6.webp");
}

.topic-live .topic-hero-strip::before {
  background-image: url("/images/decorative/decor_7.webp");
}

.topic-layout {
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.topic-rtp .topic-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
}

.topic-rail {
  position: sticky;
  top: 24px;
  padding: 22px;
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.85);
}

.topic-rail h2 {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.topic-rail ul {
  list-style: none;
  padding: 0;
}

.topic-rail li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(190, 242, 100, 0.1);
  font-size: 0.88rem;
  color: var(--muted);
}

.topic-choose .topic-layout {
  display: block;
}

.stat-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 28px 0;
}

.stat-band div {
  padding: 20px;
  text-align: center;
  background: rgba(190, 242, 100, 0.06);
  border: 1px solid var(--border);
}

.stat-band strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 6px;
}

.stat-band span {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 300;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.criteria-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}

.criteria-grid article {
  padding: 20px;
  background: var(--surface);
  border-top: 2px solid var(--accent);
}

.criteria-grid h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--primary);
}

.topic-tips .topic-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 36px;
}

.tips-side {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: rgba(190, 242, 100, 0.35);
  letter-spacing: 0.08em;
  text-align: center;
  padding: 20px 0;
  border-right: 1px solid var(--border);
}

.tips-list {
  list-style: none;
  padding: 0;
  margin: 20px 0;
  display: grid;
  gap: 14px;
}

.tips-list li {
  padding: 16px 18px 16px 52px;
  position: relative;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border);
  color: rgba(248, 250, 252, 0.85);
}

.tips-list li::before {
  content: attr(data-n);
  position: absolute;
  left: 14px;
  top: 16px;
  font-family: var(--font-serif);
  color: var(--primary);
  font-size: 1.1rem;
}

.pull-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.5vw, 1.7rem);
  color: var(--primary);
  line-height: 1.35;
  margin: 28px 0;
  padding: 20px 0 20px 24px;
  border-left: 2px solid var(--accent);
}

.topic-live .live-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: start;
  margin-top: 28px;
}

.live-panel {
  padding: 24px;
  background: linear-gradient(160deg, rgba(190, 242, 100, 0.1), rgba(15, 23, 42, 0.9));
  border: 1px solid var(--border);
}

.live-panel h3 {
  margin-bottom: 10px;
  color: var(--accent);
}

.mini-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.9rem;
}

.mini-table th,
.mini-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: rgba(248, 250, 252, 0.85);
}

.mini-table th {
  color: var(--primary);
  font-weight: 500;
  font-family: var(--font-serif);
}

.topic-body p {
  color: rgba(248, 250, 252, 0.82);
  margin-bottom: 14px;
}

.topic-body h2 {
  margin: 28px 0 12px;
  color: var(--primary);
  font-size: 1.35rem;
}

.topic-body h3 {
  margin: 20px 0 10px;
}

.img-rail {
  overflow: hidden;
  max-width: 100%;
  margin: 24px 0;
}

.img-rail .decor-img {
  margin: 0 auto;
  border: 1px solid var(--border);
}

@media (max-width: 800px) {
  .topic-rtp .topic-layout,
  .topic-tips .topic-layout,
  .topic-live .live-split,
  .criteria-grid,
  .stat-band {
    grid-template-columns: 1fr;
  }

  .tips-side {
    writing-mode: horizontal-tb;
    transform: none;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
    font-size: 1.2rem;
  }

  .topic-rail {
    position: static;
  }

  .topic-hero-strip {
    max-width: 100%;
    overflow: hidden;
    min-height: 220px;
  }
}

@media (max-width: 480px) {
  .topic-hero-strip {
    min-height: 180px;
    max-height: 260px;
    padding: 32px 16px 28px;
    overflow: hidden;
  }

  .topic-layout {
    padding: 28px 16px 48px;
    max-width: 100%;
  }

  .img-rail {
    overflow: hidden;
    max-width: 100%;
  }

  .img-rail .decor-img {
    max-width: 100%;
    max-height: 180px;
  }
}