:root{--mpls-ingress: #d4380d;--mpls-transit: #1677ff;--mpls-egress: #389e0d;--mpls-ce: #8c8c8c}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:#f0f2f5}@keyframes mpls-ant-line{to{stroke-dashoffset:-1000}}.mpls-canvas{width:100%;height:100%;background:#fbfcfe;background-image:radial-gradient(#e4e8ef 1px,transparent 1px);background-size:16px 16px}.label-stack{display:inline-flex;flex-direction:column;gap:2px;align-items:stretch;min-width:92px}.label-cell{border:1px solid #91caff;background:#e6f4ff;color:#0958d9;border-radius:4px;padding:2px 8px;font-family:SF Mono,Menlo,Consolas,monospace;font-size:12px;text-align:center;white-space:nowrap}.label-cell.top{border-color:#ffa39e;background:#fff1f0;color:#cf1322;font-weight:600}.label-cell.ip{border-color:#d9d9d9;background:#fafafa;color:#595959}.explain-body{white-space:pre-wrap;line-height:1.85;font-size:13px;color:#262626}.explain-body code{background:#f5f5f5;padding:1px 4px;border-radius:3px;font-size:12px}.cli-block{background:#1f1f1f;color:#d3f261;padding:12px 14px;border-radius:6px;font-family:SF Mono,Menlo,Consolas,monospace;font-size:12px;line-height:1.7;white-space:pre-wrap;overflow-x:auto;margin:0}.hop-chain{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-family:SF Mono,Menlo,Consolas,monospace;font-size:12px}.mono{font-family:SF Mono,Menlo,Consolas,monospace}.clickable{cursor:pointer}.bitfield{display:flex;border:1px solid #d9d9d9;border-radius:6px;overflow:hidden}.bitfield>div{padding:10px 6px;text-align:center;border-right:1px solid #d9d9d9;font-size:12px}.bitfield>div:last-child{border-right:none}