:root{--cyan:#19d7ff;--uv:#7b3fff;--red:#ff4a2a;--ink:#f4f7fa;--muted:#f4f7fa9e;--panel:#080a0e9e;--line:#19d7ff47;font-family:system-ui,-apple-system,Segoe UI,Helvetica,Arial,sans-serif}*{box-sizing:border-box}html,body{height:100%;color:var(--ink);background:#07080a;margin:0;overflow:hidden}#scene{width:100%;height:100%;display:block;position:fixed;inset:0}#hud{pointer-events:none;position:fixed;inset:0}#hud button,#hud input{pointer-events:auto}#loading{color:var(--muted);letter-spacing:.18em;text-transform:uppercase;z-index:10;text-align:center;background:#07080a;flex-direction:column;justify-content:center;align-items:center;gap:18px;padding:24px;font-size:12px;line-height:1.6;transition:opacity .6s;display:flex;position:fixed;inset:0}#loading.hide{opacity:0;pointer-events:none}.loader-mark{background:linear-gradient(90deg, var(--cyan), var(--uv));width:56px;height:2px;animation:1.4s ease-in-out infinite pulse}@keyframes pulse{0%,to{opacity:.4;transform:scaleX(.4)}50%{opacity:1;transform:scaleX(1)}}.hud-top-left{position:absolute;top:22px;left:24px}.hud-top-right{flex-direction:column;align-items:flex-end;gap:10px;display:flex;position:absolute;top:22px;right:24px}.brand{letter-spacing:.32em;color:var(--ink);align-items:center;gap:10px;font-size:12px;font-weight:700;display:flex}.brand .thin{margin-left:-6px;font-weight:300}.brand-mark{background:var(--cyan);width:10px;height:10px;box-shadow:0 0 14px var(--cyan);transform:skew(-18deg)}.tag{letter-spacing:.22em;color:var(--muted);border:1px solid var(--line);margin-left:6px;padding:3px 7px;font-size:9px}.clock{letter-spacing:-.02em;font-variant-numeric:tabular-nums;text-shadow:0 0 24px #19d7ff40;margin-top:14px;font-size:64px;font-weight:700;line-height:1}.phase{letter-spacing:.02em;margin-top:6px;font-size:20px;font-weight:600}.lap{letter-spacing:.3em;color:var(--cyan);margin-top:6px;font-size:11px;font-weight:600}.station-progress{opacity:0;width:320px;margin-top:12px;transition:all .4s;transform:translateY(-4px)}.station-progress.show{opacity:1;transform:none}.station-progress .label{letter-spacing:.12em;color:var(--muted);text-transform:uppercase;margin-top:6px;font-size:11px}.bar{background:#ffffff14;border-radius:1px;width:100%;height:6px;overflow:hidden}.bar.small{width:120px;height:5px;margin-top:8px}.bar .fill{background:linear-gradient(90deg, var(--cyan), var(--uv));width:0;height:100%;transition:width .2s linear}.bar .fill.red{background:linear-gradient(90deg, #ffb347, var(--red))}.stat{background:var(--panel);border-right:2px solid var(--line);text-align:right;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);min-width:150px;padding:8px 14px 9px 16px}.stat .k{letter-spacing:.26em;text-transform:uppercase;color:var(--muted);font-size:9px}.stat .v{font-variant-numeric:tabular-nums;margin-top:2px;font-size:30px;font-weight:700;line-height:1.05}.stat .v.small{font-size:20px}.stat .u{color:var(--muted);letter-spacing:.06em;font-size:10px}.hud-course{align-items:center;gap:4px;display:flex;position:absolute;top:22px;left:50%;transform:translate(-50%)}.node{letter-spacing:.12em;color:var(--muted);text-align:center;background:#080a0e80;border:1px solid #ffffff1f;min-width:28px;padding:5px 6px;font-size:9px;font-weight:700}.node.st{color:#d2beffd9;border-color:#7b3fff80}.node.done{color:#f4f7fa59;background:#080a0e4d;border-color:#ffffff0f}.node.active{color:#07080a;background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 18px #19d7ff8c}.node.st.active{background:var(--red);border-color:var(--red);box-shadow:0 0 18px #ff4a2a8c}.hud-bottom{flex-direction:column;gap:10px;display:flex;position:absolute;bottom:20px;left:24px;right:24px}.timeline{background:var(--panel);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--line);align-items:center;gap:14px;padding:10px 14px;display:flex}.timeline input[type=range]{appearance:none;background:#ffffff1f;outline:none;flex:1;height:4px}.timeline input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--cyan);width:14px;height:14px;box-shadow:0 0 10px var(--cyan);cursor:pointer;border-radius:50%}.timeline .time{font-variant-numeric:tabular-nums;color:var(--muted);text-align:right;min-width:120px;font-size:12px}.controls{flex-wrap:wrap;align-items:center;gap:22px;display:flex}.group{align-items:center;gap:4px;display:flex}.group .k{letter-spacing:.26em;text-transform:uppercase;color:var(--muted);margin-right:8px;font-size:9px}.btn{font:inherit;letter-spacing:.08em;color:var(--ink);cursor:pointer;background:#080a0eb3;border:1px solid #ffffff24;padding:6px 10px;font-size:11px;font-weight:600;transition:all .15s}.btn:hover{border-color:var(--cyan)}.btn.active{background:var(--cyan);color:#07080a;border-color:var(--cyan)}.hud-hint{letter-spacing:.12em;color:var(--muted);font-size:11px;transition:opacity 1.2s;position:absolute;bottom:112px;left:50%;transform:translate(-50%)}.hud-hint.fade{opacity:0}@media (max-width:900px){.hud-course{display:none}.clock{font-size:44px}.stat{min-width:120px}}