.page-content[data-astro-cid-ykvwqlwz]{padding:30px 20px 80px;max-width:880px}.breadcrumbs[data-astro-cid-ykvwqlwz]{font-size:13.5px;color:var(--text-muted);display:flex;gap:8px;margin-bottom:24px}.breadcrumbs[data-astro-cid-ykvwqlwz] a[data-astro-cid-ykvwqlwz]:hover{color:var(--accent-cyan)}.breadcrumbs[data-astro-cid-ykvwqlwz] .current[data-astro-cid-ykvwqlwz]{color:var(--text-secondary)}.page-header[data-astro-cid-ykvwqlwz] h1[data-astro-cid-ykvwqlwz]{font-size:36px;font-weight:900;line-height:1.25;margin-bottom:14px}.page-header[data-astro-cid-ykvwqlwz] h1[data-astro-cid-ykvwqlwz] span[data-astro-cid-ykvwqlwz]{color:var(--accent-cyan)}.lead[data-astro-cid-ykvwqlwz]{color:var(--text-secondary);font-size:16.5px;margin-bottom:36px;line-height:1.6}.calc-box[data-astro-cid-ykvwqlwz]{background:var(--bg-card);border:1px solid 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26px;border-radius:var(--radius-sm);font-size:15px;font-weight:700;cursor:pointer}.solution-container[data-astro-cid-ykvwqlwz]{margin-top:28px;padding:22px;background:var(--bg-primary);border:1px solid rgba(56,189,248,.35);border-radius:var(--radius-md);border-left:4px solid var(--accent-cyan);width:100%}.solution-container[data-astro-cid-ykvwqlwz] h4[data-astro-cid-ykvwqlwz]{color:var(--accent-cyan);font-size:14px;text-transform:uppercase;margin-bottom:12px}.sol-step[data-astro-cid-ykvwqlwz]{margin-bottom:10px;font-size:14.5px;line-height:1.5}.final-ans[data-astro-cid-ykvwqlwz]{margin-top:14px;display:inline-block;background:#10b98126;border:1px solid rgba(16,185,129,.4);color:#34d399;padding:8px 16px;border-radius:8px;font-weight:800;font-size:16px}.rules-grid[data-astro-cid-ykvwqlwz]{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin:20px 0 40px}.rule-card[data-astro-cid-ykvwqlwz]{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:20px;display:flex;gap:16px;align-items:flex-start}.rule-num[data-astro-cid-ykvwqlwz]{background:#38bdf81f;border:1px solid rgba(56,189,248,.3);color:var(--accent-cyan);font-size:18px;font-weight:900;width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.rule-info[data-astro-cid-ykvwqlwz] h4[data-astro-cid-ykvwqlwz]{font-size:15px;font-weight:800;margin-bottom:6px}.math-expr[data-astro-cid-ykvwqlwz]{background:var(--bg-primary);border:1px solid var(--border-color);padding:6px 10px;border-radius:6px;color:var(--accent-cyan);font-weight:700;font-family:monospace;font-size:14px;margin-bottom:6px;display:inline-block}.rule-info[data-astro-cid-ykvwqlwz] p[data-astro-cid-ykvwqlwz]{font-size:13.5px;color:var(--text-secondary);line-height:1.4}.table-responsive[data-astro-cid-ykvwqlwz]{overflow-x:auto;margin:20px 0 40px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md)}.deriv-table[data-astro-cid-ykvwqlwz]{width:100%;border-collapse:collapse;text-align:left}.deriv-table[data-astro-cid-ykvwqlwz] th[data-astro-cid-ykvwqlwz],.deriv-table[data-astro-cid-ykvwqlwz] td[data-astro-cid-ykvwqlwz]{padding:14px 18px;border-bottom:1px solid var(--border-color);font-size:14.5px}.deriv-table[data-astro-cid-ykvwqlwz] th[data-astro-cid-ykvwqlwz]{background:var(--bg-secondary);color:var(--text-secondary);font-weight:700}.deriv-table[data-astro-cid-ykvwqlwz] code[data-astro-cid-ykvwqlwz]{background:#38bdf81a;color:var(--accent-cyan);padding:3px 8px;border-radius:4px;font-weight:700;font-family:monospace;font-size:14px}.deriv-table[data-astro-cid-ykvwqlwz] tr[data-astro-cid-ykvwqlwz]:hover td[data-astro-cid-ykvwqlwz]{background:#ffffff05}.article-section[data-astro-cid-ykvwqlwz] h2[data-astro-cid-ykvwqlwz]{font-size:26px;margin:40px 0 16px}.article-section[data-astro-cid-ykvwqlwz] p[data-astro-cid-ykvwqlwz]{color:var(--text-secondary);line-height:1.6;margin-bottom:16px}.formula-card[data-astro-cid-ykvwqlwz]{background:var(--bg-secondary);border:1px solid var(--border-color);padding:14px 20px;border-radius:var(--radius-sm);font-size:18px;color:var(--accent-cyan);font-weight:700;margin-bottom:24px}.example-box[data-astro-cid-ykvwqlwz]{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:20px;margin-bottom:20px}.example-box[data-astro-cid-ykvwqlwz] h4[data-astro-cid-ykvwqlwz]{font-size:16px;color:#fff;margin-bottom:10px}.example-box[data-astro-cid-ykvwqlwz] p[data-astro-cid-ykvwqlwz]{margin-bottom:8px;font-size:14.5px}.faq-section[data-astro-cid-ykvwqlwz]{margin-top:40px;border-top:1px solid var(--border-color);padding-top:30px}.faq-item[data-astro-cid-ykvwqlwz]{margin-bottom:18px}.faq-item[data-astro-cid-ykvwqlwz] strong[data-astro-cid-ykvwqlwz]{display:block;color:var(--text-primary);font-size:15.5px;margin-bottom:4px}.calc-btn-group[data-astro-cid-ykvwqlwz]{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:14px}.btn-sub[data-astro-cid-ykvwqlwz]{background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-secondary);padding:12px 18px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.btn-sub[data-astro-cid-ykvwqlwz]:hover{color:var(--text-primary);border-color:var(--accent-cyan)}.final-row[data-astro-cid-ykvwqlwz]{margin-top:14px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}.copy-btn[data-astro-cid-ykvwqlwz]{display:inline-flex;align-items:center;gap:6px;background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-secondary);padding:9px 16px;border-radius:8px;font-size:14px;font-weight:700;cursor:pointer;transition:all .2s}.copy-btn[data-astro-cid-ykvwqlwz]:hover{border-color:var(--accent-cyan);color:var(--accent-cyan)}.related-section[data-astro-cid-ykvwqlwz]{margin-top:50px;padding-top:36px;border-top:1px solid var(--border-color)}.related-section[data-astro-cid-ykvwqlwz] h3[data-astro-cid-ykvwqlwz]{font-size:20px;margin-bottom:20px}.related-grid[data-astro-cid-ykvwqlwz]{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}.related-card[data-astro-cid-ykvwqlwz]{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:20px;display:flex;gap:16px;align-items:flex-start;transition:transform .2s,border-color .2s}.related-card[data-astro-cid-ykvwqlwz]:hover{transform:translateY(-2px);border-color:var(--accent-cyan);background:var(--bg-card-hover)}.rel-icon[data-astro-cid-ykvwqlwz]{font-size:26px;line-height:1}.related-card[data-astro-cid-ykvwqlwz] strong[data-astro-cid-ykvwqlwz]{display:block;font-size:15px;color:var(--text-primary);margin-bottom:4px}.related-card[data-astro-cid-ykvwqlwz] p[data-astro-cid-ykvwqlwz]{font-size:13px;color:var(--text-secondary);line-height:1.4;margin:0}