.compare-add-button{color:#2563eb;cursor:pointer;background:#fff;border:1px solid #2563eb;border-radius:8px;flex-shrink:0;align-items:center;gap:.5rem;padding:.6rem 1.1rem;font-size:.9rem;font-weight:600;transition:background-color .2s;display:inline-flex}.compare-add-button:hover{background:#f9fafb}.compare-add-button.is-added{background:#eff6ff;border-color:#2563eb}.grade-compare-panel{z-index:1050;-webkit-backdrop-filter:blur(16px);background:#fffffffa;border:2px solid #fff3;border-radius:8px;width:300px;max-width:calc(100% - 2rem);position:fixed;bottom:2rem;right:11rem;overflow:hidden;box-shadow:0 12px 40px #00000026,0 4px 16px #0000001a,inset 0 1px #fff3}.grade-compare-panel[hidden]{display:none}.gcp-header{border-bottom:1px solid #e5e7eb;padding:.9rem 1.1rem}.gcp-title{color:#1f2937;font-size:.95rem;font-weight:700}.gcp-list{max-height:220px;margin:0;padding:.4rem 0;list-style:none;overflow-y:auto}.gcp-item{justify-content:space-between;align-items:center;gap:.6rem;padding:.85rem .6rem .85rem 1.1rem;display:flex}.gcp-item+.gcp-item{border-top:1px solid #f3f4f6}.gcp-item-code{color:#374151;font-size:.88rem;font-weight:600}.gcp-item-remove{cursor:pointer;background:0 0;border:none;border-radius:4px;flex-shrink:0;margin-left:auto;padding:.2rem;font-size:.95rem;line-height:1}.gcp-item-remove:hover{background:#dc26261a}.gcp-actions{border-top:1px solid #e5e7eb;gap:.6rem;padding:.8rem 1.1rem;display:flex}.gcp-btn{cursor:pointer;border-radius:6px;flex:1;padding:.55rem .6rem;font-size:.82rem;font-weight:600;transition:background-color .2s}.gcp-btn-clear{color:#374151;background:#fff;border:1px solid #d1d5db}.gcp-btn-clear:hover{background:#f9fafb}.gcp-btn-compare{color:#fff;background:#2563eb;border:1px solid #2563eb}.gcp-btn-compare:hover{background:#1d4ed8}@media (width<=768px){.grade-compare-panel{width:auto;bottom:6rem;left:1rem;right:1rem}}@media (width<=480px){.grade-compare-panel{bottom:5.5rem}}