.percentage-formula-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:28px 0}.percentage-formula-card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:22px}.percentage-formula-card h3{margin:0 0 9px}.percentage-formula-card p{margin:0}.percentage-formula{color:var(--navy)!important;background:var(--blue-soft);border-radius:8px;margin:12px 0!important;padding:11px 13px;font-weight:700}.percentage-example{font-size:14px!important}.percentage-formula-card:last-child{grid-column:1/-1}.percentage-note{border-left:4px solid var(--blue);background:var(--paper);padding:18px 20px}.percentage-input-note{color:var(--muted);margin:13px 0 0;font-size:13px;line-height:1.5}.result.percentage-result-error{background:#9b2525}.percentage-error{color:#fff!important;font-weight:700}.related-tools .tool-grid{margin-top:18px}@media(max-width:800px){.percentage-formula-grid{grid-template-columns:1fr}.percentage-formula-card:last-child{grid-column:auto}}