.callout p:last-child{margin-bottom:0}.equation{overflow-x:auto;padding:16px 20px;margin:23px 0;background:#f8f8fa;border-radius:12px;font-size:17px}.equation .explain{font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;margin-top:12px}.steps{counter-reset:step;display:grid;gap:14px;margin:28px 0}.step{position:relative;padding:20px 23px 20px 68px;background:var(--bg);border-radius:16px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:22px;top:20px;width:29px;height:29px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:white;font-size:13px;font-weight:700}.step b{display:block;margin-bottom:5px}.table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--line);border-radius:14px}