:root{color-scheme:light;--paper:#f6f5ed;--ink:#324b42;--muted:#7a857a;--green:#527b65;--line:#dedfd4;--yellow:#f3c35e;font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);min-width:320px}button,a{-webkit-tap-highlight-color:transparent;touch-action:manipulation}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:default}button:focus-visible,a:focus-visible{outline:3px solid #377ab0;outline-offset:6px}button{user-select:none;-webkit-user-select:none}a{color:inherit;text-decoration:none}svg{display:block;width:100%;height:100%}[hidden]{display:none!important}.topbar{max-width:1280px;padding:25px 42px;display:flex;align-items:center;justify-content:space-between;margin:auto}.brand{display:flex;gap:12px;align-items:center;font-weight:750;font-size:18px;letter-spacing:1px}.brand-icon{display:grid;place-items:center;width:45px;height:45px;background:var(--yellow);border-radius:15px;transform:rotate(-7deg);font-size:30px;color:var(--green)}.brand small{display:block;font-size:10px;color:var(--muted);letter-spacing:3px;margin-top:4px;font-weight:500}.header-actions{display:flex;align-items:center;gap:12px}.age-tag{font-size:12px;color:var(--muted);margin-right:12px}.round-button{display:grid;place-items:center;width:48px;height:48px;border:1px solid var(--line);border-radius:50%;background:transparent;font-size:25px}.round-button svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.round-button:hover{background:#e9eddf}main{max-width:1280px;padding:10px 42px 0;margin:auto}.hero{min-height:352px;border-radius:28px;background:#e6edde;position:relative;overflow:hidden;display:grid;grid-template-columns:43% 57%;padding:40px 44px}.hero-copy{position:relative;z-index:1}.eyebrow{font-size:10px;font-weight:650;letter-spacing:2px;color:#647e68}.eyebrow i{display:inline-block;width:6px;height:6px;border-radius:50%;background:#79a380;margin-right:7px;vertical-align:middle}h1{font-size:56px;letter-spacing:1px;line-height:1.25;margin:20px 0 17px;font-weight:800}h1 span{color:#648966}.hero-copy p{font-size:14px;line-height:1.9;color:#788372;margin:0}.hero-note{display:inline-flex;align-items:center;gap:9px;font-size:11px;margin-top:24px;color:#65775f}.hero-note>span{font-size:19px;color:#bb9143}.hero-art{position:absolute;right:5px;bottom:6px;width:60%;height:100%;pointer-events:none}.scene-label{position:absolute;bottom:22px;right:35px;font-size:10px;letter-spacing:1px;color:#7c8b72}.scene-label span{display:inline-block;width:5px;height:5px;background:#91a781;border-radius:50%;margin-right:7px}.section-heading{display:flex;align-items:end;justify-content:space-between;margin:33px 0 19px}.section-heading .eyebrow{font-size:9px;letter-spacing:2.5px}.section-heading h2{font-size:24px;letter-spacing:.5px;margin:8px 0 0}.tap-note{font-size:12px;color:#899080;padding-bottom:3px}.tap-note>span{font-size:22px;margin-left:9px;vertical-align:middle}.game-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.game-card{border:1px solid #dce3d6;border-radius:22px;background:#eaf0e5;text-align:left;padding:20px 23px 22px;transition:transform .2s,box-shadow .2s;overflow:hidden}.game-card:hover{transform:translateY(-4px);box-shadow:0 9px 20px #344b4110}.game-card:active{transform:scale(.98)}.dig-card{background:#f8edd5;border-color:#eadebf}.repair-card{background:#e8eef2;border-color:#d6e1e8}.card-top{display:flex;justify-content:space-between;align-items:center}.skill-tag{font-size:10px;padding:6px 9px;border:1px solid #81957630;border-radius:20px;letter-spacing:1px;background:#ffffff35}.card-number{font-size:11px;color:#8a947d;font-variant-numeric:tabular-nums}.card-art{display:block;height:146px;margin:4px -5px 10px}.card-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px}.card-bottom strong{display:block;font-size:21px;font-weight:750;letter-spacing:.5px}.card-bottom small{display:block;font-size:11px;color:#7d8879;margin-top:8px;line-height:1.5}.go{display:grid;place-items:center;flex-shrink:0;border:1px solid #81957640;border-radius:50%;width:38px;height:38px;font-size:23px}.dig-card .go{border-color:#c8ac7255}.repair-card .go{border-color:#7f9caf55}footer{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#8a9283;padding:28px 2px 30px}footer i{display:inline-block;width:5px;height:5px;border-radius:50%;background:#8ba980;margin-right:8px}footer button{background:none;border:0;color:#788774;font-size:11px;min-height:44px}footer button span{margin-left:7px}
.play-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:10px 0 20px}.text-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:none;border:0;min-height:48px;padding:10px 14px;font-size:14px;color:#657b66;border-radius:12px}.text-button:hover{background:#e8edde}.text-button>span{font-size:23px}.progress{display:flex;gap:12px;color:#d7dccf;font-size:25px}.progress .complete{color:#dba943}.play-heading{text-align:center}.play-heading h1{font-size:34px;letter-spacing:1px;margin:10px 0 12px}.play-heading p{font-size:17px;line-height:1.6;color:#72806e;margin:0 0 20px}.playground{background:#e9efdf;border:1px solid #dce4d3;border-radius:28px;padding:20px 30px 25px;max-width:900px;margin:auto;position:relative;overflow:hidden}.playground.dig{background:#f6ebd3;border-color:#e9ddc1}.playground.repair{background:#e7eef1;border-color:#d9e2e6}.play-scene{height:214px;display:flex;align-items:center;justify-content:center;position:relative;gap:30px}.scene-vehicle{width:320px;height:200px;max-width:60%}.reference{width:135px;height:155px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px;border-radius:22px;background:#ffffff70;flex-shrink:0}.reference small{font-size:12px;color:#7f8775}.reference svg{width:112px;height:112px}.color-chip{height:34px;width:68px;background:var(--color);border:4px solid #fff9;border-radius:20px;margin:20px}.choices{display:flex;gap:20px;justify-content:center;align-items:stretch;max-width:680px;margin:4px auto 0}.choice{position:relative;flex:1;max-width:195px;min-width:0;min-height:168px;border:3px solid #ffffff90;background:#ffffff6b;border-radius:22px;padding:9px 12px 12px;box-shadow:0 5px 0 #c4cfb74d;transition:transform .18s,border-color .18s,background .18s}.choice svg{width:100%;height:130px}.choice small{display:block;font-size:12px;color:#727c6d;margin-top:4px}.choice:hover:not(:disabled){transform:translateY(-4px);border-color:#a2b796}.choice:active:not(:disabled){transform:scale(.96)}.choice.correct{border-color:#729c70;background:#fff;box-shadow:0 5px 0 #91ae7840}.choice.correct:after{content:'✓';position:absolute;top:-14px;right:-10px;border:4px solid var(--paper);background:#729c70;color:white;border-radius:50%;width:35px;height:35px;display:grid;place-items:center;font-size:20px}.choice.try-again{border-color:#d9b46e;background:#fff9}.choice:disabled:not(.correct){opacity:.5}.wheel-choice{display:flex;align-items:center;justify-content:center}.wheel-choice svg{width:112px;height:112px;flex-shrink:0}.feedback-row{min-height:109px;display:flex;align-items:center;justify-content:center;gap:24px;padding:18px 0 25px}.feedback-row p{font-size:15px;color:#73806b;margin:0;line-height:1.6}.feedback-row:has(.primary-button:not([hidden])) p{color:#537e54}.primary-button{display:inline-flex;justify-content:center;align-items:center;gap:22px;border:0;background:#547d65;color:#fff;border-radius:15px;min-height:54px;padding:14px 25px;font-weight:600;font-size:15px;box-shadow:0 4px 0 #3e614e;transition:transform .15s}.primary-button:hover{background:#426d55}.primary-button:active{transform:translateY(3px);box-shadow:none}.primary-button span{font-size:22px}.parked .scene-vehicle{animation:drive .8s ease both}.dug .scene-vehicle{animation:dig .8s ease both}.repaired .scene-vehicle{animation:bounce .7s ease both}.correct svg{animation:pop .4s ease}#finish{max-width:680px;text-align:center;margin:0 auto;padding:10px 0 45px}.finish-art{width:270px;height:180px;margin:auto}#finish h1{font-size:32px;margin:15px 0}#finish>p{color:#7c8677;line-height:1.8;font-size:15px}.finish-stars{font-size:39px;color:#dfb14b;letter-spacing:10px;margin:25px 0}.rest-note{background:#e8edde;border-radius:20px;padding:20px}.finish-actions{display:flex;align-items:center;flex-direction:column;gap:14px;margin-top:25px}dialog{border:1px solid #d7ddcd;background:var(--paper);color:var(--ink);border-radius:26px;padding:40px;width:min(480px,calc(100% - 32px));max-height:calc(100dvh - 32px);box-shadow:0 25px 100px #1e362839}dialog::backdrop{background:#20372b66;backdrop-filter:blur(5px)}dialog .close{position:absolute;right:14px;top:14px;width:40px;height:40px;border:0}dialog h2{font-size:25px;margin:18px 0}dialog p{font-size:14px;line-height:1.9;color:#6a7866}dialog .primary-button{width:100%;margin-top:15px}noscript{display:block;padding:25px;text-align:center;color:#a3482c}
@keyframes drive{50%{transform:translateX(45px)}100%{transform:translateX(0)}}@keyframes dig{40%{transform:rotate(7deg) translateY(9px)}75%{transform:rotate(-3deg)}}@keyframes bounce{30%,70%{transform:translateY(-7px)}}@keyframes pop{50%{transform:scale(1.08)}}
@media(min-width:1500px){.topbar{padding-top:32px}main{padding-top:20px}.hero{min-height:390px}.card-art{height:165px}.section-heading{margin-top:38px}}
@media(max-width:900px){.topbar{padding:22px 28px}main{padding:6px 28px 0}.hero{padding:32px;min-height:330px}.hero h1{font-size:48px}.hero-copy .eyebrow{font-size:8px;letter-spacing:1.2px}.hero-art{right:-25px;width:62%}.game-cards{gap:14px}.game-card{padding:17px}.card-art{height:126px;margin:7px -10px}.card-bottom strong{font-size:18px}.card-bottom small{font-size:10px}.go{width:31px;height:31px;font-size:19px}.age-tag{font-size:10px}.scene-label{font-size:9px}.choices{gap:15px}}
@media(max-width:640px){.topbar{padding:18px 20px}.brand{font-size:15px;gap:9px}.brand small{font-size:9px}.brand-icon{width:39px;height:39px}.header-actions{gap:8px}.age-tag{display:none}.round-button{width:44px;height:44px}main{padding:5px 18px 0}.hero{display:block;min-height:392px;padding:26px}.hero h1{font-size:41px;margin:18px 0 12px}.hero-copy p{font-size:12px}.hero-note{font-size:10px;margin-top:14px}.hero-art{height:230px;bottom:0;right:-20px;width:90%;opacity:.95}.hero-copy{pointer-events:none}.hero-copy p{max-width:230px}.hero-note{position:absolute;top:316px;left:0;white-space:nowrap;z-index:2}.scene-label{display:none}.section-heading{margin:28px 2px 17px}.section-heading h2{font-size:21px}.tap-note{font-size:10px}.game-cards{grid-template-columns:1fr;gap:14px}.game-card{min-height:156px;padding:19px 20px;position:relative}.card-top{width:47%}.card-number{display:none}.card-art{position:absolute;right:6px;top:5px;width:47%;height:140px;margin:0}.card-bottom{margin-top:24px;justify-content:flex-start}.card-bottom strong{font-size:21px}.card-bottom small{font-size:11px}.go{display:none}footer{font-size:9px;padding-top:18px;gap:10px}footer button{font-size:10px}.play-toolbar{gap:5px;margin:4px -7px 15px}.text-button{font-size:12px;gap:6px;padding:8px}.progress{font-size:19px;gap:5px}.play-heading h1{font-size:27px}.play-heading p{font-size:14px;margin-bottom:17px}.playground{padding:12px 12px 18px;border-radius:23px}.play-scene{height:180px;gap:5px}.scene-vehicle{height:160px;max-width:65%}.reference{width:98px;height:126px;border-radius:18px}.reference small{font-size:10px}.reference svg{width:90px;height:90px}.repair .reference{width:112px;height:143px}.repair .reference svg{width:112px;height:112px}.repair .scene-vehicle{max-width:60%}.choices{gap:9px}.choice{min-height:127px;padding:5px 5px 8px;border-radius:17px}.choice svg{height:99px}.choice small{font-size:10px}.wheel-choice{padding:0;min-height:126px}.wheel-choice svg{width:92px;height:112px;overflow:visible}.wheel-choice svg circle,.wheel-choice svg path{transform-origin:center}.repair .choices{gap:6px}.repair .choice{border-width:2px}.feedback-row{flex-direction:column;gap:15px;padding-top:20px}.feedback-row p{font-size:14px}.feedback-row .primary-button{min-width:190px}#finish h1{font-size:25px}.finish-art{height:155px}.finish-stars{font-size:31px;letter-spacing:7px}dialog{padding:33px 24px}}
@media(max-width:640px){.repair .reference svg{width:92px;height:112px}}
@media(max-width:380px){.hero-copy .eyebrow{font-size:7px}.hero{padding:23px}.hero-art{right:-34px}.play-toolbar .text-button{font-size:11px}.progress{gap:3px}.playground{padding-left:8px;padding-right:8px}.choices{gap:6px}.wheel-choice svg{width:84px}.repair .reference svg{width:84px;height:112px}.repair .reference{width:90px}.repair .scene-vehicle{max-width:62%}}
@media(orientation:landscape) and (max-height:900px) and (min-width:641px){.topbar{padding-top:14px;padding-bottom:10px}.play-toolbar{margin:0 0 5px}.play-heading h1{font-size:25px;margin:6px 0}.play-heading p{font-size:14px;margin-bottom:10px}.playground{max-width:850px;display:flex;align-items:center;gap:20px;padding:15px 22px}.play-scene{width:42%;height:220px;gap:4px}.scene-vehicle{max-width:65%}.reference{width:100px;height:140px}.choices{width:58%;gap:12px;margin:0}.choice{min-height:150px}.choice svg{height:112px}.feedback-row{min-height:85px;padding:12px 0}.repair .reference{width:112px}.repair .scene-vehicle{max-width:60%}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}