:root{--accent:#ffcf2e;--hot:#ff4d2e;--blue:#2ec5ff;--panel:#0c12248c;--font-num:"Russo One", "Arial Black", sans-serif;--font-cn:"Noto Sans SC", "Microsoft YaHei", sans-serif}*{box-sizing:border-box}html,body{height:100%;font-family:var(--font-cn);color:#fff;-webkit-user-select:none;user-select:none;background:#000;margin:0;overflow:hidden}#app canvas{display:block}.hidden{display:none!important}#hud-layer{pointer-events:none;z-index:3;position:fixed;inset:0}#split-line{z-index:4;background:linear-gradient(90deg,#ffcf2e,#ff6a2e,#2ec5ff);height:4px;margin-top:-2px;position:fixed;top:50%;left:0;right:0;box-shadow:0 0 12px #00000080}.hud{text-shadow:0 2px 6px #00000073;position:absolute;left:0;right:0;overflow:hidden}.hud.full{top:0;bottom:0}.hud.top{height:50%;top:0}.hud.bottom{height:50%;bottom:0}.hud .speedlines{width:100%;height:100%;position:absolute;inset:0}.hud-tl{position:absolute;top:20px;left:28px}.tag{font:900 20px var(--font-num);color:#3a1600;text-shadow:none;background:#ffcf2e;border-radius:8px;margin-bottom:6px;padding:2px 12px;display:inline-block}.bottom .tag{color:#04213a;background:#2ec5ff}.pos{font-family:var(--font-num);letter-spacing:-2px;background:linear-gradient(#fff 30%,#ffd84a 100%);color:#0000;filter:drop-shadow(0 3px #00000059);-webkit-background-clip:text;background-clip:text;font-size:84px;line-height:1}.pos sup{vertical-align:top;margin-left:2px;font-size:34px}.pos small{opacity:.85;font-size:32px}.lap{font-family:var(--font-num);margin-top:4px;font-size:26px}.lap b{color:var(--accent)}.time{font-family:var(--font-num);opacity:.95;margin-top:6px;font-size:22px}.best{opacity:.8;margin-top:2px;font-size:14px}.best span{font-family:var(--font-num)}.board{width:190px;margin:0;padding:0;list-style:none;position:absolute;top:230px;left:28px}.board li{background:var(--panel);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border-left:4px solid #0000;border-radius:8px;align-items:center;gap:8px;height:28px;margin-bottom:4px;padding:0 10px;font-size:14px;font-weight:700;display:flex}.board li.me{background:#ffcf2e59}.board li.human{background:#2ec5ff4d}.board li .n{font-family:var(--font-num);opacity:.8;width:18px}.board li .dot{border-radius:50%;width:10px;height:10px}.minimap{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:radial-gradient(circle,#0a14288c,#0a142859);border:1px solid #ffffff26;border-radius:18px;width:220px;height:220px;position:absolute;top:20px;right:24px}.hud-bl{width:300px;position:absolute;bottom:28px;left:28px}.nitro-label{font-family:var(--font-num);letter-spacing:2px;color:var(--blue);font-size:18px}.nitro-label .key{font-size:11px;font-family:var(--font-cn);color:#fff;opacity:.7;letter-spacing:0;margin-left:6px}.nitro-slots{align-items:flex-end;gap:10px;margin:8px 0;display:flex}.slot{background:var(--panel);border:2px solid #ffffff40;border-radius:14px;place-items:center;width:64px;height:64px;transition:all .2s;display:grid;position:relative}.slot.full{background:radial-gradient(circle at 50% 40%,#b8f3ff,#16a3ff 60%,#0a4bd6);border-color:#aef0ff;box-shadow:0 0 18px #2ec5ff,inset 0 0 10px #fff9}.slot.full:after{content:"N₂O";font-family:var(--font-num);color:#fff;place-items:center;font-size:18px;display:grid;position:absolute;inset:0}.slot.item{border-color:var(--c);box-shadow:0 0 14px var(--c), inset 0 0 12px #ffffff40;background:radial-gradient(circle at 50% 35%,#ffffff59,#0a122899)}.slot.item span{text-shadow:none;font-size:36px;animation:.35s cubic-bezier(.2,1.8,.4,1) itemIn}.slot.next{width:78px;height:78px}.slot.next span{font-size:44px}@keyframes itemIn{0%{transform:scale(0)rotate(-90deg)}to{transform:scale(1)}}.items .gauge{display:none}.gauge{background:var(--panel);border:1px solid #ffffff40;border-radius:10px;height:16px;overflow:hidden}.gauge-fill{background:linear-gradient(90deg,#1b8cff,#2ee6ff,#b5fbff);width:0%;height:100%;transition:width 80ms linear;box-shadow:0 0 12px #2ec5ff}.drift-tier{font-family:var(--font-num);letter-spacing:1px;height:24px;margin-top:8px;font-size:20px}.drift-tier.t1{color:#5fd4ff}.drift-tier.t2{color:#ff9d2e;text-shadow:0 0 10px #ff6a00}.hud-br{width:220px;height:220px;position:absolute;bottom:16px;right:24px}.speedo{width:100%;height:100%}.speed-num{font-family:var(--font-num);flex-direction:column;justify-content:center;align-items:center;padding-top:10px;font-size:56px;line-height:1;display:flex;position:absolute;inset:0}.speed-num small{opacity:.8;margin-top:4px;font-size:14px}.wrongway,.lockon{color:#fff;white-space:nowrap;background:#dc1e1ecc;border-radius:12px;padding:8px 28px;font-size:36px;font-weight:900;animation:.4s infinite alternate blink;position:absolute;top:24%;left:50%;transform:translate(-50%)}.lockon{background:#ff5a14d9;top:12%}@keyframes blink{0%{opacity:1}to{opacity:.4}}.center-msg{font-family:var(--font-num);color:#fff;text-shadow:0 6px #00000040,0 0 40px #ffc82899;white-space:nowrap;opacity:0;font-size:150px;position:absolute;top:38%;left:50%;transform:translate(-50%,-50%)}.center-msg.pop{animation:.9s cubic-bezier(.2,1.6,.4,1) both pop}@keyframes pop{0%{opacity:0;transform:translate(-50%,-50%)scale(2.2)}25%{opacity:1;transform:translate(-50%,-50%)scale(1)}80%{opacity:1}to{opacity:0;transform:translate(-50%,-50%)scale(.9)}}.center-msg.go{color:#ffe03a}.center-msg.stay{animation:.6s cubic-bezier(.2,1.6,.4,1) both popStay}@keyframes popStay{0%{opacity:0;transform:translate(-50%,-50%)scale(2.2)}to{opacity:1;transform:translate(-50%,-50%)scale(1)}}.toast{opacity:0;font-family:var(--font-num), var(--font-cn);white-space:nowrap;font-size:38px;font-weight:900;position:absolute;top:22%;left:50%;transform:translate(-50%)}.toast.show{animation:1.4s ease-out both toast}@keyframes toast{0%{opacity:0;transform:translate(-50%,20px)scale(.8)}15%{opacity:1;transform:translate(-50%)scale(1.05)}25%{transform:translate(-50%)scale(1)}80%{opacity:1}to{opacity:0;transform:translate(-50%,-20px)}}.hud.split .hud-tl{top:12px;left:18px}.hud.split .pos{font-size:52px}.hud.split .pos sup{font-size:22px}.hud.split .pos small{font-size:20px}.hud.split .lap{font-size:18px}.hud.split .time{margin-top:2px;font-size:16px}.hud.split .best,.hud.split .board{display:none}.hud.split .minimap{width:140px;height:140px;top:12px;right:16px}.hud.split .hud-bl{bottom:14px;left:18px}.hud.split .slot{width:48px;height:48px}.hud.split .slot.next{width:58px;height:58px}.hud.split .slot.item span{font-size:28px}.hud.split .gauge{width:200px;height:12px}.hud.split .drift-tier{height:18px;margin-top:4px;font-size:15px}.hud.split .hud-br{width:140px;height:140px;bottom:8px;right:16px}.hud.split .speed-num{font-size:34px}.hud.split .center-msg{font-size:90px;top:45%}.hud.split .toast{font-size:26px;top:18%}.hud.split .wrongway,.hud.split .lockon{padding:5px 18px;font-size:22px}.hud.split .tag{font-size:16px}.overlay{z-index:10;padding-block:20px;background:linear-gradient(90deg,#050a1ec7 0%,#050a1e59 45%,#050a1e00 70%);justify-content:flex-start;align-items:safe center;padding-left:7vw;display:flex;position:fixed;inset:0;overflow-y:auto}#pause,#results{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#050a1e8c;justify-content:center;padding:0}.menu-card{width:min(500px,90vw)}.menu-card.small{text-align:center;width:320px}.menu-card h2{margin:0 0 20px;font-size:40px;font-weight:900}.logo{margin-bottom:18px}.logo-main{font-family:var(--font-num);letter-spacing:-1px;background:linear-gradient(#fff 0%,#ffe066 55%,#ff9a1f 100%);color:#0000;filter:drop-shadow(0 5px #b3261e)drop-shadow(0 10px 20px #0006);-webkit-background-clip:text;background-clip:text;font-size:60px;font-style:italic;line-height:.9}.logo-main span{background:linear-gradient(#bff4ff 0%,#2ec5ff 60%,#1a6dff 100%);-webkit-background-clip:text;background-clip:text;margin-left:60px;display:block}.logo-sub{letter-spacing:18px;opacity:.95;margin-top:10px;font-size:18px;font-weight:900}.opt{margin-bottom:14px}.opt-row{flex-wrap:wrap;gap:18px;display:flex}.tracks{gap:10px;display:flex}.track-card{cursor:pointer;background:#ffffff14;border:2px solid #fff3;border-radius:12px;flex:1;padding:10px 12px;transition:all .15s}.track-card b{font-size:17px;display:block}.track-card small{opacity:.75;margin-top:3px;font-size:11px;line-height:1.4;display:block}.track-card .stripe{border-radius:3px;height:5px;margin-bottom:7px}.track-card.on{background:#fff3;border-color:#fff;box-shadow:0 0 16px #ffffff4d}.opt label{opacity:.75;letter-spacing:2px;margin-bottom:6px;font-size:13px;display:block}.swatches{gap:10px;display:flex}.swatch{cursor:pointer;border:3px solid #ffffff40;border-radius:50%;width:38px;height:38px;transition:all .15s}.swatch.on{border-color:#fff;transform:scale(1.15);box-shadow:0 0 16px #fff9}.seg{background:#ffffff1a;border-radius:12px;padding:4px;display:inline-flex}.seg button{color:#fff;font:700 15px var(--font-cn);cursor:pointer;background:0 0;border:0;border-radius:9px;padding:8px 20px}.seg button.on{color:#10182e;background:#fff}.big-btn{cursor:pointer;width:100%;font:900 24px var(--font-cn);color:#3a1600;letter-spacing:4px;background:linear-gradient(#ffe66b,#ffae1f);border:0;border-radius:16px;margin:14px 0 12px;padding:18px;transition:transform .1s,box-shadow .1s;display:block;box-shadow:0 6px #c9670a,0 12px 30px #ffa01473}.big-btn span{font:12px var(--font-num);letter-spacing:1px;opacity:.6;margin-left:8px}.big-btn:hover{transform:translateY(-2px)}.big-btn:active{transform:translateY(4px);box-shadow:0 2px #c9670a}.ghost-btn{cursor:pointer;color:#fff;width:100%;font:700 17px var(--font-cn);background:#ffffff1a;border:1px solid #ffffff4d;border-radius:14px;margin-bottom:10px;padding:13px;display:block}.ghost-btn:hover{background:#fff3}.row{align-items:center;gap:12px;display:flex}.row .big-btn{margin:20px 0 0}.row .ghost-btn{width:45%;margin:20px 0 0;padding:18px}.controls{opacity:.85;font-size:13px;line-height:1.9}.controls .who{width:30px;font:900 13px var(--font-num);color:#ffcf2e;display:inline-block}.controls .who.p2{color:#2ec5ff}kbd{text-align:center;min-width:22px;font:12px/20px var(--font-num);background:#ffffff26;border:1px solid #ffffff4d;border-bottom-width:3px;border-radius:5px;margin:0 2px;padding:0 6px;display:inline-block}.tips{background:#ffcf2e1f;border:1px solid #ffcf2e4d;border-radius:12px;margin-top:14px;padding:10px 14px;font-size:13px;line-height:1.6}#result-table{border-collapse:collapse;width:100%;font-size:18px}#result-table td{border-bottom:1px solid #ffffff1f;padding:10px 12px}#result-table td:first-child{font-family:var(--font-num);width:40px;font-size:22px}#result-table td:last-child{font-family:var(--font-num);text-align:right}#result-table tr.me{background:#ffcf2e40}#result-table tr.me2{background:#2ec5ff40}#result-table .dot{border-radius:50%;width:12px;height:12px;margin-right:10px;display:inline-block}#loading{z-index:20;font:32px var(--font-num);letter-spacing:6px;background:#0a1024;place-items:center;display:grid;position:fixed;inset:0}@media (width<=900px){.pos{font-size:56px}.board{display:none}.minimap{width:150px;height:150px}.hud-br{width:160px;height:160px}.speed-num{font-size:38px}.center-msg{font-size:90px}.logo-main{font-size:60px}}