:root{font-family:'Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;color:#edf7ff;background:#071b2d;font-synthesis:none}*{box-sizing:border-box}html{min-height:100%}body{margin:0;min-height:100vh;background:radial-gradient(circle at 52% -12%,#174866 0,#0c2b43 34%,#071b2d 69%);overflow-x:hidden}button,input{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible{outline:3px solid #ffd66c;outline-offset:3px}.game-shell{width:min(1160px,calc(100% - 36px));margin:0 auto;padding:27px 0 32px}.masthead{text-align:center;margin-bottom:24px}.eyebrow{display:flex;align-items:center;justify-content:center;gap:11px;color:#6bd9e5;font-size:12px;font-weight:800;letter-spacing:.22em}.eyebrow-line{width:26px;height:1px;background:#40b8cc;opacity:.7}.masthead h1{font-size:clamp(28px,4.2vw,48px);letter-spacing:.05em;line-height:1.2;margin:9px 0 5px;font-weight:900}.masthead h1 span{color:#ffd66c}.masthead p{margin:0;color:#9cbbca;font-size:13px;letter-spacing:.14em}.game-panel{position:relative;background:#0d2940;border:1px solid #2c566b;border-radius:24px;box-shadow:0 30px 75px #00101f8c, inset 0 1px #ffffff19;overflow:hidden}.topbar{padding:20px 25px 14px;display:flex;justify-content:space-between;align-items:center;gap:20px}.identity{display:flex;gap:12px;align-items:center}.identity b{display:block;font-size:15px;letter-spacing:.04em}.identity small{display:block;color:#89b2c6;font-size:11px;margin-top:3px}.pulse-dot{width:13px;height:13px;border-radius:50%;background:#53e6c1;box-shadow:0 0 0 5px #53e6c120,0 0 16px #53e6c1;flex:none;animation:pulse 2s infinite}@keyframes pulse{50%{box-shadow:0 0 0 9px #53e6c10a,0 0 20px #53e6c1}}.score-box{display:flex;align-items:baseline;gap:5px;background:#143c54;border:1px solid #286276;border-radius:12px;padding:6px 13px}.score-box span{font-size:11px;color:#98c5d4;margin-right:4px}.score-box strong{font-size:24px;color:#63e7c9;line-height:1}.score-box small{font-size:11px;color:#98c5d4}.route{padding:7px 31px 19px}.route-line{position:relative;height:8px;border-radius:20px;background:#264457;margin:11px 25px 10px}.route-line:before,.route-line:after{content:'';position:absolute;top:-5px;width:18px;height:18px;border-radius:50%;background:#56d9d0;border:3px solid #0c2b43;box-shadow:0 0 0 2px #50cbd0;z-index:2}.route-line:before{left:-6px}.route-line:after{right:-6px;background:#ffd66c;box-shadow:0 0 0 2px #ffd66c}.route-fill{width:0;height:100%;border-radius:20px;background:linear-gradient(90deg,#40d4cc,#b9f39c,#ffd66c);box-shadow:0 0 12px #40d4cc88}.route-train{position:absolute;left:0;top:-25px;font-size:23px;transform:translateX(-50%);z-index:3;filter:drop-shadow(0 3px 4px #041e2e)}.route-stops{display:flex;justify-content:space-between;color:#91b8ca;font-size:11px;font-weight:700}.route-stops span:last-child{color:#ffde86}.play-grid{display:grid;grid-template-columns:minmax(0,1.9fr) minmax(270px,.88fr);gap:15px;padding:0 20px}.scene-card{position:relative;min-width:0;aspect-ratio:900/470;border-radius:16px;overflow:hidden;border:1px solid #437386;background:#66b7c9}.scene-card canvas{width:100%;height:100%;display:block}.scene-shade{position:absolute;inset:0;background:linear-gradient(180deg,#06203853,transparent 28%,transparent 62%,#04233bc9);pointer-events:none}.scene-top,.scene-bottom{position:absolute;left:19px;right:19px;display:flex;justify-content:space-between;align-items:center}.scene-top{top:17px;gap:10px}.scene-top span{display:inline-flex;align-items:center;border-radius:20px;padding:7px 12px;background:#072439b9;border:1px solid #b5ecf044;backdrop-filter:blur(6px);font-size:11px;font-weight:800;white-space:nowrap}#system-chip i{display:inline-block;width:7px;height:7px;background:#5befcf;border-radius:50%;margin-right:6px;box-shadow:0 0 9px #5befcf}.scene-bottom{bottom:14px;align-items:end}.speed-display,.distance-display{display:flex;align-items:baseline;gap:5px;text-shadow:0 2px 8px #06283d}.speed-display span,.distance-display span{font-size:11px;color:#d3edf5;font-weight:600;display:block}.speed-display{display:block}.speed-display strong{font-size:clamp(34px,5vw,58px);line-height:1;font-weight:900;font-variant-numeric:tabular-nums}.speed-display small{font-size:11px;color:#d3edf5}.distance-display{text-align:right;display:block}.distance-display strong{font-size:22px;color:#ffdf87}.distance-display strong b{font-size:27px;font-variant-numeric:tabular-nums}.mission-card{background:linear-gradient(155deg,#164157,#103148);border:1px solid #285a6f;border-radius:16px;padding:20px;display:flex;flex-direction:column;min-height:0}.mission-label{font-size:11px;font-weight:800;color:#6fe2e2;letter-spacing:.13em;display:flex;justify-content:space-between}.mission-label span{color:#8cbdc9}.mission-card h2{font-size:22px;line-height:1.25;margin:18px 0 8px}.mission-card>p{margin:0;color:#b6d1db;font-size:12px;line-height:1.75}.event-box{display:flex;gap:12px;align-items:center;margin-top:auto;background:#0a2d43;border:1px solid #317083;border-radius:12px;padding:13px 11px;min-height:86px}.event-icon{width:48px;height:48px;border-radius:12px;background:#155366;color:#7aece8;display:grid;place-items:center;font-size:30px;flex:none}.event-box small,.event-box strong,.event-box span{display:block}.event-box small{font-size:10px;color:#71d2dd}.event-box strong{font-size:14px;margin:2px 0}.event-box span{font-size:10px;color:#a6c7d2}.event-box.warning{border-color:#eec063}.event-box.warning .event-icon{color:#ffd771;background:#5b4d36}.tip-line{display:flex;gap:8px;align-items:start;margin-top:13px;color:#9fcbda}.tip-line span{font-size:18px;color:#ffdd83;line-height:1}.tip-line p{font-size:11px;line-height:1.6;margin:0}.control-panel{margin:15px 20px 20px;padding:14px 17px 16px;background:#082439;border:1px solid #2d5c71;border-radius:16px}.control-head{display:flex;justify-content:space-between;margin-bottom:12px;color:#9fd6df;font-size:11px;font-weight:800;letter-spacing:.08em}.control-head span:last-child{color:#ffd683;letter-spacing:0}.controls{display:grid;grid-template-columns:1.05fr 1.65fr 1.05fr 1.05fr;gap:11px;align-items:stretch}.action{min-width:0;display:flex;gap:10px;align-items:center;justify-content:center;background:#153f54;color:#eaf9fc;border:1px solid #32748a;border-radius:12px;padding:11px 8px;text-align:left;transition:transform .15s,border-color .15s,background .15s;touch-action:none}.action:hover{transform:translateY(-2px);border-color:#6ed9e0}.action:active,.action.pressed{transform:translateY(1px);background:#276071}.action-icon{width:36px;height:36px;display:grid;place-items:center;flex:none;border-radius:11px;background:#1c6471;color:#7ce9df;font-size:23px;font-weight:800}.action b,.action small{display:block;white-space:nowrap}.action b{font-size:13px}.action small{font-size:10px;color:#a9cbd6;margin-top:3px}.action.scan.ready{border-color:#62dfdf;box-shadow:0 0 0 2px #62dfdf22}.action.brake{background:#443b44;border-color:#a27670}.action.brake .action-icon{background:#795452;color:#ffd39a}.action.brake.pressed{background:#9e614e}.action.door{background:#254a4b;border-color:#578e83}.action.door .action-icon{background:#34706a;color:#d1ffe5}.action:disabled{cursor:default;opacity:.5;transform:none;box-shadow:none}.action em{font-size:10px;font-style:normal;color:#ffe2a3}.toast{position:absolute;bottom:112px;left:50%;transform:translate(-50%,9px);max-width:min(90%,550px);padding:10px 15px;border-radius:10px;background:#092b42ed;border:1px solid #68d9dc;color:#effcff;text-align:center;font-size:12px;font-weight:700;box-shadow:0 8px 25px #001726bb;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:8}.toast.visible{opacity:1;transform:translate(-50%,0)}.page-footer{text-align:center;padding:18px 10px;color:#87adbd;font-size:11px}.page-footer span{color:#6ddada;font-weight:800;letter-spacing:.1em}.page-footer p{margin:5px 0 0}.overlay{position:fixed;inset:0;z-index:20;display:none;align-items:center;justify-content:center;padding:18px;background:#041622b9;backdrop-filter:blur(8px)}.overlay.visible{display:flex}.overlay-card{width:min(440px,100%);padding:28px 30px 24px;text-align:center;border-radius:24px;border:1px solid #4d9aa4;background:linear-gradient(160deg,#17465b,#0b2a40 67%);box-shadow:0 28px 80px #000b18cc,inset 0 1px #d2ffff33}.overlay-art{font-size:73px;line-height:1;filter:drop-shadow(0 9px 9px #031b2c);animation:bob 3s ease-in-out infinite}@keyframes bob{50%{transform:translateY(-5px)}}.overlay-tag{color:#6ee6df;font-size:11px;font-weight:900;letter-spacing:.16em;margin-top:18px}.overlay-card h2{font-size:30px;margin:9px 0 8px}.overlay-card p{color:#bdd8df;font-size:13px;line-height:1.8;margin:0 auto;max-width:330px}.overlay-steps{display:flex;justify-content:center;gap:8px;margin:22px 0}.overlay-steps span{background:#103b52;border:1px solid #367488;border-radius:9px;padding:9px 8px;font-size:10px;color:#d2e9ec;white-space:nowrap}.overlay-steps b{color:#7de7df;font-size:16px;margin-right:3px;vertical-align:middle}.primary-btn{width:100%;border:0;border-radius:12px;background:linear-gradient(90deg,#61e5d0,#a5f4bb);color:#083344;font-size:15px;font-weight:900;padding:15px 18px;box-shadow:0 7px 0 #0d6a71;transition:transform .15s,box-shadow .15s}.primary-btn:hover{transform:translateY(2px);box-shadow:0 5px 0 #0d6a71}.primary-btn:active{transform:translateY(6px);box-shadow:0 1px 0 #0d6a71}.primary-btn span{margin-left:10px}.overlay-card>small{display:block;color:#8fb8c7;font-size:10px;margin-top:18px}.overlay-steps.hidden{display:none}
@media(max-width:860px){.game-shell{width:min(680px,calc(100% - 24px));padding-top:18px}.play-grid{grid-template-columns:1fr}.mission-card{min-height:190px}.mission-card h2{margin-top:9px}.event-box{margin-top:12px}.controls{grid-template-columns:1fr 1fr}.scene-card{aspect-ratio:900/500}.toast{bottom:190px}}@media(max-width:520px){.masthead{margin-bottom:15px}.masthead h1{font-size:28px}.masthead p{font-size:11px}.topbar{padding:14px 14px 10px}.identity b{font-size:12px}.identity small{font-size:9px}.score-box{padding:5px 8px}.score-box span{font-size:9px}.score-box strong{font-size:20px}.route{padding:8px 15px 13px}.route-stops{font-size:9px}.play-grid{padding:0 10px;gap:10px}.scene-card{aspect-ratio:900/580}.scene-top,.scene-bottom{left:10px;right:10px}.scene-top{top:10px}.scene-top span{font-size:9px;padding:5px 7px}.scene-bottom{bottom:8px}.distance-display strong{font-size:15px}.distance-display strong b{font-size:19px}.speed-display strong{font-size:37px}.mission-card{padding:13px;min-height:0}.mission-card h2{font-size:18px}.mission-card>p{font-size:11px}.event-box{min-height:64px;padding:7px}.event-icon{width:38px;height:38px;font-size:23px}.tip-line{margin-top:8px}.control-panel{margin:10px 10px 12px;padding:10px}.controls{gap:7px}.action{padding:8px 5px;gap:5px}.action-icon{width:30px;height:30px;font-size:19px}.action b{font-size:11px}.action small{font-size:9px}.toast{bottom:174px}.overlay-card{padding:24px 18px}.overlay-card h2{font-size:25px}.overlay-steps{gap:4px}.overlay-steps span{padding:7px 5px;font-size:9px}}

/* Physical train controls and the cinematic failure panels. */
.speed-meter{display:flex;align-items:center;gap:10px;color:#91bdca;font-size:10px;font-weight:800;margin:-3px 0 12px}
.speed-meter-track{position:relative;flex:1;height:9px;border-radius:99px;background:#1a4256;overflow:hidden;border:1px solid #4b8091}
#speed-bar{height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,#62dfcc 0%,#d1ef9e 50%,#ffd271 78%,#ee8d77 100%);transition:width .08s linear}
.speed-tick{position:absolute;top:0;bottom:0;width:2px;background:#e8f9f2aa}.tick-40{left:50%}.tick-60{left:75%}
.controls{grid-template-columns:repeat(4,minmax(0,1fr))}
.action.accelerate{background:#164b52;border-color:#4dafaa}.action.accelerate .action-icon{background:#21766e;color:#d2ffe2}.action.accelerate.pressed{background:#258977}
.overlay-image{display:block;width:100%;aspect-ratio:900/500;object-fit:cover;border-radius:15px;border:2px solid #f4d59d;box-shadow:0 10px 25px #00172588}
.overlay-image[hidden],.overlay-art[hidden]{display:none}
@media(max-width:860px){.controls{grid-template-columns:repeat(2,minmax(0,1fr))}.toast{bottom:168px}}
@media(max-width:520px){.speed-meter{margin-bottom:8px}.overlay-card:has(.overlay-image:not([hidden])){padding:15px}.overlay-card:has(.overlay-image:not([hidden])) h2{font-size:22px}.overlay-card:has(.overlay-image:not([hidden])) p{font-size:11px}.overlay-card:has(.overlay-image:not([hidden])) .primary-btn{padding:11px}}

.action.scan{position:relative;overflow:hidden;padding-bottom:15px}
.scan-progress{position:absolute;left:8px;right:8px;bottom:6px;height:4px;border-radius:6px;background:#0a2e3e;overflow:hidden}
.scan-progress i{display:block;width:0;height:100%;border-radius:6px;background:linear-gradient(90deg,#57dcd2,#d0ffab);box-shadow:0 0 7px #78eecf}
.action.scan.scanning{background:#1d5f67;border-color:#a1f5e4;box-shadow:0 0 20px #68f6de55}
.action.scan.scanning .action-icon{animation:scan-beat .55s ease-in-out infinite alternate}
@keyframes scan-beat{to{transform:scale(1.14);box-shadow:0 0 13px #a4ffe7}}
.scan-result{position:absolute;left:50%;top:48%;transform:translate(-50%,-40%);display:flex;align-items:center;gap:10px;max-width:80%;min-width:235px;padding:11px 15px;border-radius:14px;background:#073348e8;border:1px solid #92f4d9;box-shadow:0 12px 32px #001c2ca6;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;z-index:3}
.scan-result.visible{opacity:1;transform:translate(-50%,-50%)}
.scan-result-icon{width:33px;height:33px;display:grid;place-items:center;flex:none;border-radius:50%;background:#79e8c7;color:#0a4450;font-size:21px;font-weight:900}
.scan-result b,.scan-result small{display:block}.scan-result b{font-size:13px;color:#f2ffeb}.scan-result small{font-size:10px;line-height:1.45;color:#b6eadf;margin-top:3px}
.distance-display.overrun strong{color:#ffcc8a}
@media(max-width:520px){.scan-result{padding:8px 10px;min-width:190px;max-width:87%}.scan-result b{font-size:11px}.scan-result small{font-size:9px}.scan-result-icon{width:27px;height:27px;font-size:17px}}

.cctv-panel{position:absolute;left:9%;right:9%;top:57px;bottom:75px;z-index:4;display:none;overflow:hidden;border:2px solid #a3e4d4;border-radius:13px;background:#183e48;box-shadow:0 15px 42px #001824dd,0 0 0 5px #092d3f9c}
.cctv-panel.visible{display:block}
.scene-card.monitoring{aspect-ratio:900/520}
.cctv-panel canvas{display:block;width:100%;height:100%;filter:saturate(.76) contrast(1.05)}
.cctv-head,.cctv-foot{position:absolute;left:0;right:0;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:7px 11px;background:#062632dc;color:#e8fff4;font-size:10px;font-weight:800;z-index:1;letter-spacing:.04em}
.cctv-head{top:0}.cctv-foot{bottom:0;color:#d4eee5;font-size:9px}
.cctv-head span{white-space:nowrap}.cctv-head i{display:inline-block;width:7px;height:7px;margin-right:5px;border-radius:50%;background:#ff725e;box-shadow:0 0 7px #ff725e}
.cctv-head strong{color:#ffdc8a;white-space:nowrap}.cctv-head strong.clear{color:#89f4c2}
.cctv-foot span:last-child{color:#ff9f90;white-space:nowrap}
.action.door.clear{border-color:#88efbb;box-shadow:0 0 0 2px #88efbb31,0 0 16px #60ecaa28}
@media(max-width:520px){.scene-card.monitoring{aspect-ratio:900/660}.cctv-panel{left:7px;right:7px;top:40px;bottom:55px}.cctv-head,.cctv-foot{font-size:8px;padding:4px 6px}.cctv-foot{font-size:7px}}

/* Keep only useful status and action text, at a legible size. */
.masthead h1{margin:0}
.mission-card h2{margin:0 0 14px}
.route-stops,.scene-top span,.speed-display span,.distance-display span,.score-box span,.score-box small{font-size:12px}
.scene-top{justify-content:flex-end}
.event-box small,.event-box span,.action small,.scan-result small,.cctv-head,.cctv-foot{font-size:12px}
.event-box strong,.tip-line p,.control-head,.toast,.overlay-card p{font-size:13px}
.control-head{margin-bottom:10px}
.control-head span:last-child{color:#ffd683}
.overlay-steps{flex-wrap:wrap}
.overlay-steps span{font-size:12px}
@media(max-width:520px){
  .route-stops{font-size:11px}
  .scene-top span{font-size:11px}
  .score-box span,.score-box small,.speed-display span,.distance-display span{font-size:11px}
  .event-box small,.event-box span,.action small,.scan-result small,.cctv-head,.cctv-foot{font-size:11px}
  .event-box strong,.tip-line p,.control-head,.toast,.overlay-card p{font-size:12px}
  .action b{font-size:12px}
  .overlay-steps span{font-size:11px}
}
/* Stop mobile long-press copy/callout on hold controls */
html,body,*{
  -webkit-user-select:none;
  -moz-user-select:none;
  -ms-user-select:none;
  user-select:none;
  -webkit-touch-callout:none;
}
img,canvas,svg{-webkit-user-drag:none;pointer-events:auto}
.action,.primary-btn{
  touch-action:manipulation;
  -webkit-tap-highlight-color:transparent;
}
.action{touch-action:none}