.calc-hero-header[data-astro-cid-lnr6julo]{text-align:center;max-width:860px;margin:10px auto 26px}.badge-tag[data-astro-cid-lnr6julo]{color:#059669;background:#10b9811a;border:1px solid #10b9814d;border-radius:9999px;margin-bottom:12px;padding:5px 14px;font-size:.82rem;font-weight:700;display:inline-block}.calc-hero-header[data-astro-cid-lnr6julo] h1[data-astro-cid-lnr6julo]{color:var(--text);margin-bottom:12px;font-size:2rem;line-height:1.25}.lead-text[data-astro-cid-lnr6julo]{color:var(--text-soft);font-size:1.02rem;line-height:1.6}.formula-guide-section[data-astro-cid-lnr6julo],.rebar-table-section[data-astro-cid-lnr6julo],.land-crosslink-section[data-astro-cid-lnr6julo]{margin:36px 0}.formula-guide-section[data-astro-cid-lnr6julo] h2[data-astro-cid-lnr6julo],.rebar-table-section[data-astro-cid-lnr6julo] h2[data-astro-cid-lnr6julo]{color:var(--text);margin-bottom:18px;font-size:1.35rem}.formula-grid[data-astro-cid-lnr6julo]{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;display:grid}.formula-card[data-astro-cid-lnr6julo]{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px}.formula-card[data-astro-cid-lnr6julo] h3[data-astro-cid-lnr6julo]{color:var(--text);margin-bottom:10px;font-size:1.05rem}.math-code[data-astro-cid-lnr6julo]{color:var(--primary);background:var(--bg);border:1px solid var(--border);border-radius:6px;margin-bottom:10px;padding:8px 12px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:1.05rem;font-weight:700;display:inline-block}.formula-card[data-astro-cid-lnr6julo] p[data-astro-cid-lnr6julo]{color:var(--text-soft);margin:0;font-size:.92rem;line-height:1.55}.table-responsive[data-astro-cid-lnr6julo]{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:8px;overflow-x:auto}.eng-table[data-astro-cid-lnr6julo]{border-collapse:collapse;width:100%;font-size:.94rem}.eng-table[data-astro-cid-lnr6julo] th[data-astro-cid-lnr6julo],.eng-table[data-astro-cid-lnr6julo] td[data-astro-cid-lnr6julo]{text-align:left;border-bottom:1px solid var(--border);padding:12px 16px}.eng-table[data-astro-cid-lnr6julo] th[data-astro-cid-lnr6julo]{background:var(--bg);color:var(--text-soft);font-weight:600}.eng-table[data-astro-cid-lnr6julo] tbody[data-astro-cid-lnr6julo] tr[data-astro-cid-lnr6julo]:hover{background:var(--result-bg)}.land-crosslink-card[data-astro-cid-lnr6julo]{background:linear-gradient(135deg,#2563eb0f 0%,#3b82f605 100%);border:1px solid #2563eb40;border-radius:16px;padding:26px}.land-crosslink-card[data-astro-cid-lnr6julo] h2[data-astro-cid-lnr6julo]{color:var(--text);margin-bottom:8px;font-size:1.35rem}.land-crosslink-card[data-astro-cid-lnr6julo] p[data-astro-cid-lnr6julo]{color:var(--text-soft);margin-bottom:18px;font-size:.96rem;line-height:1.55}.land-links-grid[data-astro-cid-lnr6julo]{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;display:grid}.land-link-pill[data-astro-cid-lnr6julo]{background:var(--card);border:1px solid var(--border);color:var(--text);border-radius:10px;flex-direction:column;gap:3px;padding:12px 14px;text-decoration:none;transition:transform .15s,border-color .15s;display:flex}.land-link-pill[data-astro-cid-lnr6julo]:hover{border-color:var(--primary);transform:translateY(-2px)}.land-link-pill[data-astro-cid-lnr6julo] strong[data-astro-cid-lnr6julo]{color:var(--primary);font-size:.92rem}.land-link-pill[data-astro-cid-lnr6julo] span[data-astro-cid-lnr6julo]{color:var(--text-soft);font-size:.82rem}.hub-btn[data-astro-cid-lnr6julo]{background:var(--card);border:1px solid var(--border);color:var(--primary);border-radius:8px;padding:10px 20px;font-size:.92rem;font-weight:600;text-decoration:none;transition:border-color .15s;display:inline-block}.hub-btn[data-astro-cid-lnr6julo]:hover{border-color:var(--primary)}@media (width<=640px){.calc-hero-header[data-astro-cid-lnr6julo] h1[data-astro-cid-lnr6julo]{font-size:1.45rem}.lead-text[data-astro-cid-lnr6julo]{font-size:.92rem}.formula-guide-section[data-astro-cid-lnr6julo],.rebar-table-section[data-astro-cid-lnr6julo],.land-crosslink-section[data-astro-cid-lnr6julo]{margin:24px 0}.land-links-grid[data-astro-cid-lnr6julo]{grid-template-columns:1fr}}