.racer-page{position:fixed;top:60px;right:0;bottom:0;left:0;background:#05010f;z-index:1}.racer-canvas{position:absolute;top:0;right:0;bottom:0;left:0}.racer-canvas canvas{display:block;touch-action:none}.racer-ui{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;font-family:inherit}.racer-topbar{position:absolute;top:16px;left:20px;right:20px;display:flex;justify-content:space-between;align-items:flex-start}.racer-stat{display:flex;flex-direction:column;gap:2px}.racer-stat.right{text-align:right}.racer-stat-label{font-size:10px;letter-spacing:2px;color:var(--text-muted)}.racer-stat-value{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;color:#fff;text-shadow:0 0 12px rgba(0,212,255,.6)}.racer-speedbox{text-align:center}.racer-speed{font-size:18px;font-weight:700;color:var(--accent-cyan);font-variant-numeric:tabular-nums;text-shadow:0 0 10px rgba(0,212,255,.5)}.racer-speed-unit{font-size:10px;color:var(--text-muted);letter-spacing:1px}.racer-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at center,#05010f40,#05010fc7);transition:opacity .45s ease;pointer-events:auto}.racer-overlay.hidden{opacity:0;pointer-events:none}.racer-panel{text-align:center;padding:40px 48px;background:#0d11178c;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border-bright);border-radius:16px;box-shadow:0 0 60px #4e9af126;animation:fadeInUp .5s 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4px;font-variant-numeric:tabular-nums}.racer-bestline{color:var(--text-secondary);font-size:13px;margin-top:18px;letter-spacing:1px}.racer-newbest{color:#ffe14d;text-shadow:0 0 14px rgba(255,225,77,.6);font-size:14px;font-weight:700;letter-spacing:2px;margin-top:10px;animation:pulse 1.2s ease-in-out infinite}.tool-card-icon--pink{background:linear-gradient(135deg,#ec489926,#a855f71a);border:1px solid rgba(236,72,153,.2)}.tool-card-icon--pink svg{fill:var(--accent-pink)}.tool-card:hover .tool-card-icon--pink{box-shadow:0 0 20px #ec48994d;border-color:var(--accent-pink)}.tool-card-icon--blue{background:linear-gradient(135deg,#4e9af126,#00d4ff14);border:1px solid rgba(78,154,241,.25)}.tool-card-icon--blue svg{fill:var(--accent-blue)}.tool-card:hover .tool-card-icon--blue{box-shadow:0 0 20px #4e9af14d;border-color:var(--accent-blue)}@media (max-width: 640px){.racer-title{font-size:30px}.racer-panel{padding:28px 22px}.racer-stat-value{font-size:20px}.racer-final{font-size:40px}}:root{--bg-deep: #0a0a14;--surface-color: rgba(22, 27, 46, .7);--border-color: rgba(78, 154, 241, .15);--border-bright: rgba(78, 154, 241, .4);--text-primary: #e8eaf0;--text-secondary: #8892b0;--text-muted: #5a6378;--accent-cyan: #00d4ff;--accent-blue: #4e9af1;--accent-purple: #a855f7;--glow-cyan: 0 0 20px rgba(0, 212, 255, .3);--glow-purple: 0 0 20px rgba(168, 85, 247, .3);--radius: 12px}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}body{font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif;background:var(--bg-deep);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased}.home{display:flex;flex-direction:column;align-items:center;min-height:100vh;padding:72px 24px 80px;background:radial-gradient(900px 480px at 70% -10%,rgba(78,154,241,.12),transparent 65%),radial-gradient(700px 420px at 15% 20%,rgba(168,85,247,.08),transparent 60%),linear-gradient(rgba(78,154,241,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(78,154,241,.045) 1px,transparent 1px);background-size:auto,auto,44px 44px,44px 44px;animation:fadeInUp .6s ease-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.home-hero{text-align:center;margin-bottom:56px}.home-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;background:#4e9af114;border:1px solid var(--border-color);color:var(--accent-cyan);font-size:12px;font-weight:500;letter-spacing:3px;margin-bottom:24px;animation:fadeIn .8s ease .1s both}.home-badge-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-cyan);box-shadow:0 0 8px var(--accent-cyan);animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.home-title{font-size:56px;font-weight:800;line-height:1.15;letter-spacing:-1px;background:linear-gradient(135deg,#e8eaf0 0%,var(--accent-cyan) 50%,var(--accent-purple) 100%);background-size:200% 200%;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;animation:gradientShift 6s ease-in-out infinite}@keyframes gradientShift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.demo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:24px;width:100%;max-width:760px}.demo-card{display:block;padding:32px;background:var(--surface-color);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--border-color);border-radius:var(--radius);text-decoration:none;color:inherit;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;opacity:0;animation:cardEnter .6s ease forwards}@keyframes cardEnter{0%{opacity:0;transform:translateY(30px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.demo-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at var(--mx, 50%) var(--my, 50%),rgba(78,154,241,.12) 0%,transparent 60%);opacity:0;transition:opacity .3s ease;pointer-events:none}.demo-card:hover:before{opacity:1}.demo-card:after{content:"";position:absolute;bottom:0;left:0;width:100%;height:2px;background:linear-gradient(90deg,var(--accent-cyan),var(--accent-blue),var(--accent-purple));transform:scaleX(0);transform-origin:left;transition:transform .4s ease}.demo-card:hover{border-color:var(--border-bright);transform:translateY(-6px);box-shadow:0 12px 40px #0006,0 0 30px #4e9af11a}.demo-card:hover:after{transform:scaleX(1)}.demo-card-icon{width:52px;height:52px;display:flex;align-items:center;justify-content:center;border-radius:14px;margin-bottom:20px;position:relative;transition:all .3s ease}.demo-card-icon svg{width:26px;height:26px;position:relative;z-index:1}.demo-card-icon--cyan{background:linear-gradient(135deg,#00d4ff26,#4e9af11a);border:1px solid rgba(0,212,255,.2)}.demo-card-icon--cyan svg{fill:var(--accent-cyan)}.demo-card-icon--purple{background:linear-gradient(135deg,#a855f726,#ec48991a);border:1px solid rgba(168,85,247,.2)}.demo-card-icon--purple svg{fill:var(--accent-purple)}.demo-card:hover .demo-card-icon--cyan{box-shadow:var(--glow-cyan);border-color:var(--accent-cyan)}.demo-card:hover .demo-card-icon--purple{box-shadow:var(--glow-purple);border-color:var(--accent-purple)}.demo-card-title{font-size:20px;font-weight:700;margin-bottom:8px;color:var(--text-primary);display:flex;align-items:center;gap:8px}.demo-card-arrow{display:inline-block;color:var(--text-muted);transition:transform .3s ease,color .3s ease;font-size:16px}.demo-card:hover .demo-card-arrow{transform:translate(6px);color:var(--accent-cyan)}.demo-card-desc{color:var(--text-secondary);font-size:14px;line-height:1.6;margin-bottom:16px}.demo-card-tags{display:flex;gap:8px;flex-wrap:wrap}.demo-card-tag{padding:4px 10px;border-radius:6px;font-size:11px;font-weight:500;color:var(--text-muted);background:#ffffff0a;border:1px solid rgba(255,255,255,.06);letter-spacing:.3px}.racer-back{position:fixed;top:16px;left:16px;z-index:20;color:#cfd8e6;background:#141a268c;border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:6px 14px;font-size:13px;text-decoration:none;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.racer-back:hover{color:#fff}@media (prefers-reduced-motion: reduce){.home,.home-badge,.home-title,.demo-card{animation:none;opacity:1}}