:root{font-family:"Hiragino Kaku Gothic ProN",Meiryo,sans-serif;color:#fff;background:#08081c;font-synthesis:none;color-scheme:dark}*{box-sizing:border-box}body{margin:0}button{font:inherit;cursor:pointer}button:focus-visible{outline:3px solid #ffe12b;outline-offset:4px}button:disabled{cursor:default;opacity:.4}.game-layout{width:min(1020px,100% - 48px);margin:36px auto;display:grid;grid-template-columns:280px minmax(0,1fr);gap:48px;align-items:center}.game-brand>img{display:block;width:260px;max-width:100%;height:auto}.brand-copy{padding-top:24px}.test-tag{font:700 10px/1.4 Arial,sans-serif;letter-spacing:.12em;color:#ff7b61;margin:0 0 12px}h1{font:900 italic 46px/.95 Arial,sans-serif;letter-spacing:-.045em;margin:0 0 20px}.brand-description{font-size:14px;line-height:1.9;color:#d4d7e4}.event-date{font:900 italic 23px/1.4 Arial,sans-serif;margin:22px 0 0}.event-date span{display:block;font:700 10px/1.8 Arial,sans-serif;letter-spacing:.12em;color:#aeb7cf}.game-panel{min-width:0;border:1px solid #35415d;border-top:3px solid #ef4024;background:#10152a;box-shadow:0 18px 50px #0003}.game-hud{display:flex;justify-content:space-between;padding:12px 18px;background:#14234e}.game-hud>div{display:flex;align-items:baseline;gap:8px}.game-hud span{font:700 10px/1 Arial,sans-serif;letter-spacing:.08em;color:#bfcbe4}.game-hud strong{font:900 italic 27px/1 Arial,sans-serif;font-variant-numeric:tabular-nums}.game-hud small{font-size:12px}.track{height:clamp(250px,42svh,380px);position:relative;overflow:hidden;background:linear-gradient(#8ab5cf 0 27%,#537564 27% 31%,#708375 31% 100%);isolation:isolate}.landscape{position:absolute;inset:0 0 auto;height:24%;background:linear-gradient(#588db7,#b8d5e3);overflow:hidden}.mountain{position:absolute;width:48%;height:100%;left:26%;top:7%;background:#63768e;clip-path:polygon(46% 0,54% 0,100% 100%,0 100%)}.mountain-snow{position:absolute;width:48%;height:100%;left:26%;top:7%;background:#ecf3f5;clip-path:polygon(46% 0,54% 0,64% 26%,57% 20%,50% 33%,43% 22%,35% 30%)}.landscape>span{position:absolute;bottom:0;left:0;right:0;padding:5px;text-align:center;font:900 italic 11px/1 Arial,sans-serif;letter-spacing:.15em;background:#14234e;color:#fff}.road{position:absolute;left:14%;right:14%;top:24%;bottom:0;background:#424b57;border-inline:7px solid #efefed;box-shadow:inset 3px 0 #df3e36,inset -3px 0 #df3e36}.lane-lines{position:absolute;inset:-80px 33.333%;border-inline:2px dashed #d2d7dd;animation:road-drive .75s linear infinite;animation-play-state:paused}.is-running .lane-lines{animation-play-state:running}@keyframes road-drive{to{transform:translateY(80px)}}.finish-line{position:absolute;left:0;right:0;height:14px;top:0;background:repeating-conic-gradient(#f6f6f3 0 25%,#1b2432 0 50%) 0/20px 20px}.stands{position:absolute;top:25%;bottom:0;left:0;width:11%;background:repeating-linear-gradient(0deg,#657388 0 5px,#a6b1be 5px 9px);border-right:4px solid #c9d3db;transform:skewY(-12deg)}.pits{position:absolute;top:25%;bottom:0;right:0;width:11%;background:repeating-linear-gradient(0deg,#e2e4e1 0 26px,#505d6b 26px 32px);border-left:5px solid #c8cfd2;transform:skewY(12deg)}.pits span{position:absolute;top:10px;left:0;right:0;text-align:center;font:900 10px Arial,sans-serif;color:#14234e}.player{position:absolute;width:38px;height:63px;left:50%;top:78%;transform:translate(-50%,-50%);z-index:2;transition:left .13s ease-out;filter:drop-shadow(0 5px 3px #0006)}.player svg{width:100%;height:100%}.pickup{position:absolute;left:50%;width:clamp(66px,14vw,88px);height:42px;transform:translate(-50%,-50%);background:#fff;border:2px solid #fff;border-radius:5px;display:flex;align-items:center;justify-content:center;padding:6px;box-shadow:0 3px 10px #0005;color:#14234e;z-index:1}.pickup img{max-width:100%;max-height:100%;object-fit:contain}.pickup span{font:900 italic 12px/1 Arial,sans-serif;white-space:nowrap}.game-overlay{position:absolute;inset:0;z-index:4;display:grid;place-items:center;padding:18px;background:#08081ca8}.game-overlay[hidden]{display:none}.overlay-card{text-align:center;width:100%;max-width:380px;padding:22px 14px;background:#101b3beb;border:1px solid #ffffff40;box-shadow:0 12px 24px #0002}.overlay-eyebrow{font:700 10px/1.3 Arial,sans-serif;letter-spacing:.12em;color:#ffb399}.overlay-card h2{font-size:26px;line-height:1.3;margin:12px 0}.overlay-card p{font-size:13px;line-height:1.7;margin:10px 0}.overlay-card .instructions{font-size:11px;color:#c6d0e5}.start-button{background:#ef4024;color:#fff;border:0;min-height:44px;padding:11px 26px;margin-top:10px;font-size:15px;font-weight:700}.start-button:hover{background:#d4321b}.collection-heading{display:flex;justify-content:space-between;gap:10px;padding:14px 14px 8px}.collection-heading>span{font:700 10px/1.5 Arial,sans-serif;letter-spacing:.07em}.collection-heading small{font-size:10px;color:#aeb7cf}.collection{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;list-style:none;padding:0 14px;margin:0}.collection li{display:flex;align-items:center;justify-content:center;min-width:0;height:38px;border:1px dashed #57627a;color:#8f9cb7;position:relative;font:700 10px/1.3 Arial,sans-serif;letter-spacing:.04em}.collection li.is-collected{border:2px solid #ffe12b;background:#fff;color:#14234e}.collection li img{max-width:calc(100% - 24px);max-height:26px;object-fit:contain}.collection li.is-collected::after{content:"✓";position:absolute;right:3px;top:1px;color:#14234e;font-size:12px}.controls{display:grid;grid-template-columns:100px minmax(0,1fr) 100px;align-items:center;gap:10px;padding:12px 14px 6px}.controls button{touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;border:1px solid #8795b2;background:#243961;color:#fff;min-height:48px;font-size:23px;font-weight:700;border-radius:3px}.controls button:active{background:#ef4024}.controls button span{font:700 11px/1 Arial,sans-serif}.controls p{font-size:11px;line-height:1.6;text-align:center;margin:0;color:#d3dbee;overflow-wrap:anywhere}.preview-note{font-size:10px;line-height:1.7;color:#94a0b9;padding:0 14px 12px;margin:6px 0 0}@media(max-width:800px){.game-layout{width:min(520px,100% - 24px);display:block;margin:12px auto 16px}.game-brand{display:flex;gap:18px;align-items:center;margin-bottom:12px}.game-brand>img{width:112px;flex-shrink:0}.brand-copy{padding:0}.test-tag{font-size:8px;margin-bottom:5px}h1{font-size:23px;margin:0 0 5px}h1 br{display:none}h1 br::after{content:" "}.brand-description{font-size:11px;line-height:1.5;margin:0}.event-date{display:none}.track{height:clamp(210px,36svh,300px)}.game-hud{padding:10px 14px}.game-hud strong{font-size:23px}.game-hud span{font-size:9px}.overlay-card{padding:14px 10px}.overlay-card h2{font-size:22px;margin:8px 0}.overlay-card p{font-size:12px;margin:6px 0}.overlay-card .instructions{font-size:10px}.start-button{margin-top:6px;font-size:14px}.collection-heading{padding-top:10px}.collection li{height:32px}.collection li img{max-height:22px}.controls{grid-template-columns:82px minmax(0,1fr) 82px;padding-top:10px}.controls button{min-height:44px}.controls p{font-size:10px}.preview-note{font-size:9px}.player{width:31px;height:52px}.pickup{height:34px;padding:4px}.geibun-name{font-size:30px}}@media(max-width:360px){.game-brand>img{width:96px}.game-brand{gap:12px}.test-tag{font-size:7px}h1{font-size:21px}.controls{grid-template-columns:72px minmax(0,1fr) 72px;gap:6px}.collection-heading small{font-size:9px}}@media(prefers-reduced-motion:reduce){.lane-lines{animation:none}.player{transition:none}}
:root .controls button{min-height:66px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;background:#ffe12b;color:#14234e;border:0;border-bottom:4px solid #b29a19;border-radius:7px}
.track{overflow:clip;height:clamp(340px,52svh,500px)}
@media(max-width:800px){.track{height:clamp(280px,44svh,420px)}.game-panel{display:flex;flex-direction:column}.controls{order:1}.collection-heading{order:2}.collection{order:3}.preview-note{order:4}}
.road{overflow:hidden}
:root .controls button:active{background:#ffc52b;transform:translateY(2px);border-bottom-width:2px}
.controls button svg{display:block;width:58px;height:36px}
.controls button span{font-size:12px;font-weight:800}
.overlay-card{position:relative;z-index:1}
#trophy{width:72px;height:72px;margin:6px auto 0}
#trophy[hidden]{display:none}
#trophy svg{display:block;width:100%;height:100%}
.is-perfect .overlay-card{border-color:#ffe12b;background:#101b3bf5;padding:12px 14px}
.is-perfect #overlay-title{font:900 italic clamp(18px,4.5vw,25px)/1.1 Arial,sans-serif;color:#ffe12b;letter-spacing:-.035em;margin:8px 0}
.is-perfect #overlay-copy{font-size:11px;line-height:1.5;margin:6px 0}
#confetti{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:2}
#confetti i{position:absolute;left:var(--x);top:-15px;width:7px;height:12px;background:var(--color);animation:confetti-fall var(--duration) var(--delay) ease-in forwards}
@keyframes confetti-fall{0%{transform:translate(0,-20px) rotate(0);opacity:1}100%{transform:translate(var(--drift),430px) rotate(650deg);opacity:0}}
@media(max-width:800px){.is-perfect .overlay-card{padding:8px 10px}#trophy{width:52px;height:52px;margin-top:3px}.is-perfect .start-button{min-height:40px;padding:8px 18px}.is-perfect #overlay-title{font-size:19px}.controls button svg{width:54px;height:34px}}
@media(prefers-reduced-motion:reduce){#confetti{display:none}}
.sound-controls{display:flex;align-items:center;gap:12px;padding:8px 14px;background:#101b3b;border-top:1px solid #ffffff1f;position:sticky;top:0;z-index:6}
.sound-controls button{flex-shrink:0;min-width:90px;min-height:44px;padding:8px 14px;border:1px solid #ffe12b;border-radius:5px;background:#ffe12b;color:#14234e;font-size:13px;font-weight:800}
.sound-controls button[aria-pressed="false"]{background:transparent;color:#d4dcef;border-color:#6b7894}
.sound-controls span{font-size:11px;line-height:1.6;color:#c6d0e5}
.track{height:clamp(600px,76svh,820px);touch-action:none}
.landscape{height:16%}
.road{top:16%}
.stands,.pits{top:17%}
.player{top:78%}
.operation-guide{margin:0;padding:12px 16px;background:#101b3b;text-align:center;font-size:13px;line-height:1.7}
.operation-guide strong{display:block;color:#ffe12b}
.operation-guide span{display:block;font-size:11px;color:#d4dcef}
.game-rules{font-size:12px;line-height:1.8;margin:10px 14px;color:#d4dcef;order:3}
.hazard{position:absolute;transform:translate(-50%,-50%);z-index:1;pointer-events:none}
.hazard-rock{width:76px;height:61px;background:url('../images/game-rock.webp') center/contain no-repeat}
.hazard-water{width:98px;height:56px;background:url('../images/game-puddle.webp') center/contain no-repeat}
.hazard-legend{display:flex;justify-content:center;align-items:center;gap:20px;padding:10px 12px;order:3;font-size:11px;color:#d4dcef}
.hazard-legend span{display:flex;align-items:center;gap:8px}
.hazard-legend img{width:42px;height:34px;object-fit:contain}
.is-delayed .lane-lines{animation-duration:2s}
.player.is-rock-hit svg{animation:rock-hit .15s linear 4}
.player.is-spinning svg{animation:water-spin .9s ease-out}
@keyframes rock-hit{50%{transform:translate(-4px,8px) rotate(-8deg)}}
@keyframes water-spin{50%{transform:translateY(15px) rotate(190deg)}100%{transform:rotate(360deg)}}
@media(max-width:800px){
 .track{height:clamp(500px,70svh,720px)}
 .controls{position:sticky;bottom:0;z-index:5;background:#10152af5;padding:10px 12px max(10px,env(safe-area-inset-bottom));border-top:1px solid #35415d}
 .controls button svg{width:62px;height:40px}
 .operation-guide{font-size:12px;padding:10px}
 .game-rules{font-size:11px}
 .hazard-rock{width:58px;height:47px}
 .hazard-water{width:72px;height:41px}
}
.collection{grid-template-columns:repeat(5,minmax(0,1fr))}
@media(max-width:800px){.collection{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(prefers-reduced-motion:reduce){.player.is-rock-hit svg,.player.is-spinning svg{animation:none}.is-delayed .player{opacity:.55}}
.game-home{display:inline-flex;align-items:center;min-height:44px;margin-top:12px;color:#fff;font-size:13px;text-underline-offset:4px}
.game-logo-home{display:block;width:260px;max-width:100%;flex-shrink:0}
.game-logo-home img{display:block;width:100%;height:auto}
.game-logo-home:focus-visible,.game-home:focus-visible{outline:3px solid #ffe12b;outline-offset:4px}
@media(max-width:800px){
 .game-layout{width:min(520px,100% - 16px);margin:0 auto 16px}
 .game-brand{height:92px;margin:0;gap:12px}
 .game-logo-home{width:82px}
 .brand-copy{flex:1;min-width:0;position:relative}
 .test-tag{font-size:7px;margin:0 0 4px}
 .game-brand h1{font-size:22px;margin:0;line-height:1.1}
 .brand-description{display:none}
 .game-home{font-size:11px;min-height:44px;margin:0}
 .game-panel{display:grid;grid-template-columns:minmax(0,1fr) 76px;grid-template-rows:48px 38px auto 76px;align-items:stretch}
 .game-play{display:contents}
 .operation-guide{grid-column:1;grid-row:1;display:flex;align-items:center;padding:4px 8px;text-align:left}
 .operation-guide strong{display:none}
 .operation-guide span{font-size:10px;line-height:1.5;text-wrap:balance}
 .sound-controls{grid-column:2;grid-row:1;position:static;padding:2px 4px;border:0}
 .sound-controls button{min-width:0;width:100%;min-height:44px;font-size:12px;padding:4px}
 .sound-controls span{position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden}
 .game-hud{grid-column:1/-1;grid-row:2;padding:7px 10px}
 .game-hud strong{font-size:22px}
 .game-hud span{font-size:8px}
 .track{grid-column:1/-1;grid-row:3;height:max(260px,calc(100svh - 268px));min-height:0}
 .controls{grid-column:1/-1;grid-row:4;position:static;order:0;padding:5px 8px;grid-template-columns:72px minmax(0,1fr) 72px;gap:8px}
 :root .controls button{min-height:64px}
 .controls button svg{width:58px;height:34px}
 .controls p{font-size:10px;line-height:1.5}
 .collection-heading,.collection,.hazard-legend,.game-rules,.preview-note{grid-column:1/-1}
 .game-overlay{padding:10px}
 .overlay-card{padding:12px 8px}
 .overlay-card h2{font-size:20px;text-wrap:balance}
 .overlay-card .instructions{display:none}
}
@media(min-width:801px){
 .game-layout{width:min(1100px,100% - 40px);margin:12px auto;grid-template-columns:320px minmax(0,1fr);column-gap:28px;row-gap:8px;align-items:start}
 .game-panel{display:contents}
 .game-brand{grid-column:1;grid-row:1;display:flex;gap:14px;align-items:center}
 .game-logo-home{width:130px}
 .brand-copy{padding:0;min-width:0}
 .game-brand h1{font-size:28px;line-height:1;margin:6px 0}
 .test-tag{font-size:8px;margin:0}
 .brand-description{font-size:11px;line-height:1.6;margin:8px 0 0}
 .event-date{display:none}
 .game-home{margin-top:0;font-size:12px}
 .operation-guide{grid-column:1;grid-row:2;padding:9px;font-size:13px}
 .operation-guide span{display:none}
 .sound-controls{grid-column:1;grid-row:3;position:static;padding:4px 8px}
 .sound-controls span{font-size:10px}
 .collection-heading{grid-column:1;grid-row:4;padding:6px 0 0}
 .collection{grid-column:1;grid-row:5;padding:0}
 .collection li{height:30px}
 .collection li img{max-height:24px}
 .hazard-legend{grid-column:1;grid-row:6;padding:2px 0;order:0}
 .game-rules{grid-column:1;grid-row:7;margin:0;font-size:11px;order:0}
 .preview-note{grid-column:1;grid-row:8;margin:0;padding:0;font-size:9px}
 .game-play{grid-column:2;grid-row:1/9;position:sticky;top:12px;height:calc(100svh - 24px);min-height:360px;display:grid;grid-template-rows:46px minmax(0,1fr) 86px;background:#10152a;border:1px solid #35415d;border-top:3px solid #ef4024;overflow:hidden}
 .game-hud{padding:10px 14px}
 .track{height:auto;min-height:0}
 .controls{padding:8px 12px;position:static}
 .overlay-card .instructions{display:none}
 .overlay-card{padding:16px 12px}
}