.eq-display{font:28px/1.9 'Times New Roman',serif;padding:14px 0;overflow-wrap:anywhere}.eq-display .fraction{font-size:27px}.eq-highlight{background:#e7edff;color:#213ee6;border-radius:5px;padding:1px 6px}.eq-pink{background:#f3eafa;color:#7740a8;border-radius:5px;padding:1px 6px}.eq-buttons{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0}.eq-buttons .choice{display:flex;align-items:center;justify-content:center;min-height:102px;gap:7px;font-size:24px;font-weight:400;font-family:'Times New Roman',serif}.eq-small{font-size:14px;color:#63708a}.eq-chain{margin:12px 0;padding:13px 0;border-bottom:1px solid #e1e6f0}.eq-chain .label{display:block;font-size:14px;color:#586c88;margin-bottom:8px}.eq-chain .math{font-size:25px;line-height:1.7}.eq-result{background:#e8f7f1;color:#22684f;padding:18px;border-radius:10px;margin-top:18px}.eq-progress{font-size:14px;color:#576a85}.eq-summary{margin-top:20px}.eq-summary a{text-decoration:none}.eq-action-note{font-size:14px;color:#66758e;line-height:1.6}@media(max-width:760px){.lesson-nav{grid-template-columns:repeat(3,minmax(0,1fr))}.lesson-nav button{font-size:14px;padding:10px}.eq-display{font-size:24px}.eq-display .fraction{font-size:24px}.eq-chain .math{font-size:23px}.eq-buttons .choice{font-size:23px;padding:8px}}

.bar-row{grid-template-columns:34px 1fr 38px}.bar-label{font:600 14px Arial,sans-serif}