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24px;color:var(--ink);text-decoration:none;border-top:1px solid var(--border)}.th-row:first-child{border-top:0}.th-row:hover{background:var(--row-hover-bg,var(--accent-subtle))}.th-row strong{font-size:15px;font-weight:600}.th-row span{font-size:14px;color:var(--ink-secondary)}.th-sub{margin-top:32px}.th-sub h2{font-size:18px;font-weight:600;margin:0 0 12px}.th-sub h2 a{color:var(--ink);text-decoration:none}.th-sub h2 a:hover{color:var(--accent-text)}.th-article-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:24px}.th-article-grid.has-toc{grid-template-columns:minmax(0,1fr) 240px}.th-article{background:var(--surface);border-radius:var(--radius-area,16px);box-shadow:var(--shadow-area);padding:40px 48px;min-width:0}.th-article h1{font-size:28px;font-weight:700;margin:0 0 8px;letter-spacing:-.01em}.th-lead{font-size:16px;margin:0 0 8px}.th-lead,.th-meta{color:var(--ink-secondary)}.th-meta{font-size:13px;margin:0 0 24px;padding-bottom:24px;border-bottom:1px solid var(--border)}.th-toc{position:sticky;top:24px;align-self:start;display:flex;flex-direction:column;gap:6px;font-size:13px;background:var(--surface);border-radius:var(--radius-area,16px);box-shadow:var(--shadow-area);padding:16px}.th-toc strong{font-size:13px;margin-bottom:4px}.th-toc a{color:var(--ink-secondary);text-decoration:none;line-height:1.4}.th-toc a.is-sub{padding-left:12px}.th-toc a:hover{color:var(--accent-text)}.th-body{font-size:15px;line-height:1.65;color:var(--ink);overflow-wrap:anywhere}.th-body p{margin:0 0 12px}.th-body .th-gap{height:8px}.th-body a{color:var(--accent-text)}.th-body b,.th-body strong{font-weight:600}.th-body code{font-size:13px;background:var(--surface-sunken);padding:1px 4px;border-radius:4px}.th-h2{font-size:21px;font-weight:700;margin:32px 0 12px}.th-h2,.th-h3{scroll-margin-top:24px}.th-h3{font-size:17px;font-weight:600;margin:24px 0 8px}.th-center{text-align:center}.th-right{text-align:right}.th-img{margin:16px 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18px;border-radius:var(--radius-control,9px);background:var(--accent);color:#fff!important;font-weight:600;font-size:14px;text-decoration:none}.th-button:hover{background:var(--accent-hover)}.th-related{margin-top:32px}.th-related h2{font-size:18px;font-weight:600;margin:0 0 12px}.th-ask{margin-top:32px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;background:var(--surface);border-radius:var(--radius-area,16px);box-shadow:var(--shadow-area);padding:20px 24px}.th-ask p{margin:0;font-weight:600}.th-empty{text-align:center;padding:64px 16px}.th-empty h1{font-size:24px;margin:0 0 8px}.th-empty p{color:var(--ink-secondary);margin:0 0 20px}.th-footer{padding:24px 0 32px;font-size:13px}.th-footer .th-wrap{display:flex;flex-wrap:wrap;gap:20px;justify-content:center}.th-footer a{color:var(--accent-text);text-decoration:none}.th-footer a:hover{text-decoration:underline}@media (max-width:860px){.th-article-grid.has-toc{grid-template-columns:minmax(0,1fr)}.th-toc{display:none}.th-article{padding:24px 20px}.th-hero h1{font-size:26px}.th-card{padding:20px}.th-row{padding:14px 18px}}