.topic-main{max-width:1100px;margin:0 auto;padding:16px 24px 72px}.topic-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--fg-faint);margin:4px 0 18px}.topic-crumb a{color:var(--fg-muted);text-decoration:none}.topic-crumb a:hover{color:var(--accent)}.topic-crumb .sep{color:var(--line-strong)}.topic-crumb b{color:var(--fg);font-weight:var(--fw-medium)}.topic-hero{margin-bottom:22px}.topic-eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--fg-faint);margin-bottom:8px}.topic-h1{font-size:var(--fs-4xl);font-weight:var(--fw-bold);color:var(--fg-strong);line-height:1.15;margin:0 0 12px;display:flex;flex-wrap:wrap;align-items:baseline;gap:10px}.topic-h1-en{font-family:var(--font-mono);font-size:var(--fs-md);font-weight:var(--fw-regular);color:var(--fg-faint);letter-spacing:.01em}.topic-intro{font-size:var(--fs-md);line-height:var(--lh-relaxed);color:var(--fg-muted);max-width:760px;margin:0}.topic-chips{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 16px}.topic-chip{font-size:13px;color:var(--fg-muted);background:var(--bg-elev);border:1px solid var(--line);border-radius:8px;padding:6px 12px}.topic-chip b{color:var(--fg-strong);font-weight:var(--fw-semibold)}.topic-grid{display:grid;grid-template-columns:1fr;grid-gap:12px;gap:12px}@media (min-width:880px){.topic-grid{grid-template-columns:1fr 1fr}}.topic-empty{color:var(--fg-faint);padding:40px 0;text-align:center}.topic-stats-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:12px;gap:12px;margin:20px 0}@media (min-width:720px){.topic-stats-grid{grid-template-columns:repeat(4,1fr)}}.topic-stat{background:var(--bg-elev);border:1px solid var(--line);border-radius:12px;padding:18px 16px;display:flex;flex-direction:column;gap:4px}.topic-stat b{font-family:var(--font-display);font-size:var(--fs-3xl);font-weight:var(--fw-bold);color:var(--fg-strong);line-height:1}.topic-stat span{font-size:13px;color:var(--fg-faint)}.topic-ranking{margin:28px 0}.topic-ranking h2{font-size:var(--fs-lg);font-weight:var(--fw-semibold);color:var(--fg-strong);margin:0 0 14px}.topic-rank-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.topic-rank-row{display:grid;grid-template-columns:28px minmax(120px,1.4fr) 3fr auto;align-items:center;grid-gap:12px;gap:12px;padding:9px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg-elev);text-decoration:none}.topic-rank-row.is-link:hover{border-color:var(--accent)}.topic-rank-row .rk-no{font-family:var(--font-mono);font-size:13px;color:var(--fg-faint)}.topic-rank-row .rk-name{font-size:14px;color:var(--fg);font-weight:var(--fw-medium);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.topic-rank-row .rk-bar{height:8px;background:var(--bg-inset);border-radius:999px;overflow:hidden}.topic-rank-row .rk-bar i{display:block;height:100%;background:var(--accent);border-radius:999px}.topic-rank-row .rk-count{font-family:var(--font-mono);font-size:14px;color:var(--fg-strong);font-weight:var(--fw-semibold);text-align:right}.topic-related{margin-top:40px;border-top:1px solid var(--line-faint);padding-top:24px}.topic-related h2{font-size:var(--fs-lg);font-weight:var(--fw-semibold);color:var(--fg-strong);margin:0 0 14px}.topic-related-grid{display:grid;grid-template-columns:1fr;grid-gap:10px;gap:10px}@media (min-width:720px){.topic-related-grid{grid-template-columns:repeat(3,1fr)}}.topic-related-card{display:flex;flex-direction:column;gap:6px;padding:14px 16px;border:1px solid var(--line);border-radius:10px;background:var(--bg-elev);text-decoration:none}.topic-related-card:hover{border-color:var(--accent)}.trc-title{font-size:15px;font-weight:var(--fw-semibold);color:var(--fg-strong)}.trc-blurb{font-size:13px;color:var(--fg-muted);line-height:1.4}.trc-count{font-family:var(--font-mono);font-size:12px;color:var(--fg-faint)}.topic-index-grid{display:grid;grid-template-columns:1fr;grid-gap:12px;gap:12px}@media (min-width:720px){.topic-index-grid{grid-template-columns:1fr 1fr}}.topic-index-card{display:flex;flex-direction:column;gap:8px;padding:20px;border:1px solid var(--line);border-radius:12px;background:var(--bg-elev);text-decoration:none;transition:border-color var(--dur-fast) var(--ease-out)}.topic-index-card:hover{border-color:var(--accent)}.tic-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.tic-title{font-size:var(--fs-xl);font-weight:var(--fw-bold);color:var(--fg-strong)}.tic-count{font-size:12px;white-space:nowrap}.tic-count,.tic-en{font-family:var(--font-mono);color:var(--fg-faint)}.tic-en{font-size:13px}.tic-blurb{font-size:14px;color:var(--fg-muted);line-height:1.5}