@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;600;700;900&display=swap');
:root{font-family:'Noto Sans SC',sans-serif;color:#254737;background:#f8f7ef;font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:4px solid #ffae48;outline-offset:5px}header{height:96px;padding:0 6%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #dfe5d8}.brand{text-decoration:none;color:inherit;font-size:23px;font-weight:900;display:flex;align-items:center;gap:12px}.brand>span{background:#d9ef90;border-radius:14px;padding:4px 11px;font-size:30px}.brand small{font-size:10px;letter-spacing:2px;margin-left:12px;font-weight:600}.quiet{background:transparent;border:1px solid #d3ddcd;border-radius:30px;padding:10px 18px;color:#45634e}main{max-width:1160px;margin:30px auto;padding:0 28px}.topline{display:flex;justify-content:space-between;color:#7b8976;font-size:13px;margin-bottom:23px}.topline b{margin:0 15px;color:#bbc6b4}.hero{display:grid;grid-template-columns:1fr 1fr;min-height:440px;border-radius:30px;background:#eaf0df;overflow:hidden}.intro{padding:48px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:700;color:#698253}.pill{display:inline-block;background:#fff9;border:1px solid #dae4cb;border-radius:30px;padding:8px 14px;font-size:12px}h1{font-size:54px;line-height:1.28;letter-spacing:-2px;margin:22px 0 18px}h1 em{font-style:normal;color:#6c8c42}p{line-height:1.9;color:#72806b;font-size:15px}.primary{background:#2c513c;color:white;border:0;border-radius:14px;padding:16px 28px;font-weight:700;box-shadow:0 5px 0 #193c28}.primary:hover{background:#3c6447;transform:translateY(-2px)}.intro .primary{margin-top:17px;min-width:200px}.art{display:flex;align-items:center;justify-content:center;position:relative;background:radial-gradient(circle,#d9e6bb 0 48%,transparent 49%)}.orbit{display:grid;grid-template-columns:repeat(3,100px);gap:13px;transform:rotate(-8deg)}.fruit-tile{height:105px;border:2px solid #fff;background:#fff9;border-radius:24px;display:grid;place-items:center;font-size:64px;box-shadow:0 8px 0 #71834c13}.orbit .fruit-tile:nth-child(2n){transform:translateY(-16px)}.art .sticker{position:absolute;bottom:30px;right:30px;background:#ffe59b;padding:12px 20px;border-radius:12px;transform:rotate(-7deg);font-weight:700}.rules{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}.rule{border:1px solid #dce3d4;padding:22px;border-radius:19px;display:flex;gap:16px}.rule i{font-style:normal;font-size:26px}.rule strong{font-size:15px}.rule p{font-size:12px;margin:6px 0 0}.hud{display:flex;gap:12px;align-items:center;margin-bottom:22px}.score{margin-left:auto;background:#e5efce;padding:11px 20px;border-radius:14px;font-weight:bold}.dots{display:flex;gap:7px}.dot{width:25px;height:7px;background:#dce2d4;border-radius:9px}.dot.done{background:#659352}.dot.active{background:#f3b94d}.game{text-align:center;border-radius:28px;background:white;border:1px solid #e1e6da;padding:32px}.prompt{font-size:50px;margin:6px 0 0;letter-spacing:7px}.pinyin{font-size:23px;color:#6e855a;letter-spacing:3px;margin:3px 0 20px}.timer{max-width:480px;margin:0 auto 25px;display:flex;gap:12px;align-items:center;font-size:13px}.track{height:7px;background:#e9eddf;flex:1;border-radius:10px;overflow:hidden}.fill{height:100%;background:#91b664;transition:width .1s linear}.choices,.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.choice{position:relative;background:#faf9f2;border:2px solid #e5e8dd;border-radius:22px;min-height:185px;font-size:85px;transition:.2s;color:#254737}.choice:hover:not(:disabled){transform:translateY(-6px);border-color:#9ab979;background:#eff6df}.choice .key{position:absolute;left:12px;top:12px;font-size:12px;border:1px solid #dce3d5;border-radius:7px;padding:3px 7px}.choice.correct{border-color:#70a751;background:#e6f3da}.choice.wrong{border-color:#da8580;background:#fff0ed}.choice:disabled{cursor:default}.feedback{min-height:65px;padding:19px 0 8px;font-weight:600}.game h2{font-size:32px;margin:12px 0}.cards{margin:30px 0}.card{height:230px;border:0;border-radius:20px;background:#e9efde;color:#31503a;font-weight:900;transition:transform .35s,background .35s;box-shadow:0 6px 0 #cbd6bd}.card strong{font-size:37px;display:block}.card span{display:block;font-size:14px;margin:13px}.card.back{background:repeating-linear-gradient(45deg,#31573f,#31573f 12px,#365e44 12px,#365e44 24px);color:#ebf4d6;border:7px solid #e1e9d4}.card.back strong{font-size:65px}.card.shuffle{animation:shake .35s infinite alternate}.card.selected{outline:4px solid #e6b751;transform:translateY(-10px)}@keyframes shake{to{transform:translateX(12px) rotate(5deg)}}.statrow{display:flex;justify-content:center;gap:40px;margin:30px}.statrow strong{font-size:38px;display:block}.review{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:24px}.review span{padding:10px;border-radius:10px;background:#f0f3e8}.lime{display:inline-block;width:1.1em;height:.8em;background:radial-gradient(ellipse at 35% 30%,#aad64d,#62a021 60%,#3b761c);border-radius:50%;transform:rotate(-25deg);border:2px solid #59952b;box-shadow:inset 0 0 8px #c4e779}.lime:after{content:'';display:block;width:.27em;height:.14em;background:#347a31;border-radius:100% 0;margin:-.05em 0 0 .6em;transform:rotate(35deg)}footer{max-width:1104px;margin:35px auto;padding:20px 0;border-top:1px solid #dfe5d8;display:flex;justify-content:space-between;color:#909c86;font-size:12px}button:disabled{cursor:default}@media(max-width:750px){header{height:78px;padding:0 20px}.brand{font-size:18px}.brand small{display:none}main{padding:0 16px;margin:20px auto}.hero{grid-template-columns:1fr}.intro{padding:30px}h1{font-size:42px}.art{min-height:300px}.orbit{grid-template-columns:repeat(3,78px)}.fruit-tile{height:78px;font-size:49px}.rules{grid-template-columns:1fr;gap:10px}.choices,.cards{grid-template-columns:repeat(2,1fr);gap:12px}.choice{min-height:140px;font-size:70px}.card{height:160px}.game{padding:22px 14px}.hud{flex-wrap:wrap}.dots{gap:4px}.dot{width:18px}footer{margin:25px 20px;gap:20px}.statrow{gap:20px}.prompt{font-size:42px}}
/* Fruit Club: warm paper, forest-green stage, citrus accents. */
:root{background:#f8f3e7;color:#203f35}body{background-image:radial-gradient(#bab6a338 .8px,transparent .8px);background-size:12px 12px}header{background:#f8f3e7dd;border-bottom:1px solid #243f3520}.brand>span{background:#e5ef87;border:1px solid #254737;box-shadow:3px 3px 0 #254737}.brand small{letter-spacing:2.5px}.topline{font-size:11px;letter-spacing:1px;text-transform:uppercase}.hero{background:#1f493b;border:1px solid #15372c;box-shadow:0 12px 0 #dfdfcb;position:relative;border-radius:26px}.intro{position:relative;z-index:1;padding:48px 42px}.hero h1{color:#fff9e9;font-size:58px;line-height:1.22}.hero h1 em{color:#e3ee8e}.hero p{color:#c2d3bc}.hero .pill{background:#ffffff10;color:#e7efbd;border-color:#ffffff35;font-size:11px;letter-spacing:1px}.primary{background:#e5ef8e;color:#203f35;border:1px solid #203f35;box-shadow:0 5px 0 #203f35;border-radius:12px;transition:transform .16s,box-shadow .16s}.primary:hover{background:#f1f7ba;transform:translateY(-3px);box-shadow:0 8px 0 #203f35}.primary:active{transform:translateY(3px);box-shadow:0 2px 0 #203f35}.hero .primary{box-shadow:0 5px 0 #102e24}.art{background:radial-gradient(circle,transparent 53%,#d4e7b925 53.3% 53.6%,transparent 54%),radial-gradient(circle,#d4e7b919 0 43%,transparent 43.4%)}.art:before,.art:after{content:'✳';position:absolute;color:#e5ee87;font-size:48px;top:24px;right:38px}.art:after{content:'✦';top:auto;right:auto;left:30px;bottom:32px;font-size:34px}.fruit-tile{background:#fff9e9;border:1px solid #183f31;box-shadow:5px 7px 0 #102f2580;border-radius:22px}.fruit-tile:nth-child(3n){background:#f7d2b5}.fruit-tile:nth-child(3n+1){background:#e5edaf}.art .sticker{background:#f9b186;border:1px solid #203f35;box-shadow:3px 4px 0 #122f25;color:#203f35;font-size:14px}.rules{margin-top:32px;gap:16px}.rule{background:#fffaf0;border:1px solid #293f3530;border-radius:16px}.rule i{background:#ebedcf;width:44px;height:44px;flex-shrink:0;display:grid;place-items:center;border-radius:50%}.rule:nth-child(2) i{background:#f8d9c0}.rule:nth-child(3) i{background:#e1dfef}.rule p{color:#6d7668}.hud .pill{background:#fffaf0;border-color:#b8c4ad}.score{background:#e5ed9c;border:1px solid #7e9465;box-shadow:3px 3px 0 #bac5a7;font-size:18px}.dot{height:9px}.dot.done{background:#2c654b}.game{background:#fffdf6;border:1px solid #d7d8c5;box-shadow:0 9px 0 #e4e3d3;position:relative;overflow:hidden;padding:34px}.game:before{content:'';position:absolute;top:0;left:0;right:0;height:7px;background:repeating-linear-gradient(90deg,#294f3d 0 32px,#e5ee96 32px 64px,#f4bd96 64px 96px)}.game .eyebrow{font-size:10px;letter-spacing:3px;font-weight:900;margin-top:8px}.game h2.prompt{font-size:54px;margin:14px 0 0;line-height:1.35}.pinyin{font-size:24px;margin-bottom:22px}.timer{background:#f0f1e5;border-radius:30px;padding:10px 16px;max-width:550px}.track{background:#dbe0cc;height:8px}.fill{background:#618c46}.choice{border:1px solid #cfD3be;background:radial-gradient(ellipse at center,#e9efcc 0 35%,#f5f6e9 36%);box-shadow:0 6px 0 #e1e4d3;border-radius:18px;min-height:195px}.choice:nth-child(2){background:radial-gradient(ellipse at center,#f7dfc7 0 35%,#fcf1e5 36%)}.choice:nth-child(3){background:radial-gradient(ellipse at center,#dce8e2 0 35%,#edf3ed 36%)}.choice:nth-child(4){background:radial-gradient(ellipse at center,#e9def1 0 35%,#f4eef8 36%)}.choice .key{border:1px solid #bdc8b2;background:#fff9ef;border-radius:50%;width:26px;height:26px;display:grid;place-items:center;padding:0;font-weight:bold}.choice.correct{background:#dceec6;border:3px solid #5b8a3e}.choice.wrong{background:#f9dfd7;border:3px solid #cb7d70}.feedback{font-size:14px}.bonus-stage{background:#244c3f;color:#fff6df;border-color:#183a2e;overflow:visible}.bonus-stage:before{border-radius:25px 25px 0 0}.bonus-stage .eyebrow{color:#e4ec9c}.bonus-stage h2{font-size:36px;letter-spacing:1px;margin-top:13px}.bonus-stage p{color:#c5d5c6}.bonus-steps{display:flex;justify-content:center;gap:16px;font-size:11px;color:#b7c8b9;margin-top:22px}.bonus-steps span{padding:7px 12px;border-bottom:2px solid #ffffff20}.bonus-steps .on{color:#ecf2a5;border-color:#e3ec93}.cards{position:relative;gap:20px;margin:44px 0 40px;perspective:1000px}.card{position:relative;border:1px solid #f9f6dc;border-radius:16px;background:#e5eea8;color:#234537;box-shadow:0 7px 0 #112f27,0 16px 26px #102b2440;height:235px;transition:box-shadow .2s;transform-origin:center;isolation:isolate}.card:before{content:'';position:absolute;inset:8px;border:1px solid currentColor;border-radius:10px;opacity:.28;pointer-events:none}.card small{display:block;font-size:9px;letter-spacing:1.6px;margin:14px 0 24px}.card strong{font-size:43px;letter-spacing:-2px}.card span{font-size:15px;margin:10px}.card i{display:block;font-style:normal;margin:18px;font-size:20px}.card.reward-1:not(.back){background:#f5c5b4}.card.reward-2:not(.back){background:#f7db88}.card.reward-3:not(.back){background:#dfd7f2}.card.back{background:repeating-linear-gradient(45deg,#365f4e 0 5px,#315846 5px 10px);color:#eff4c5;border:3px solid #e6e8c1;box-shadow:0 7px 0 #102b23,0 15px 25px #102b2440}.card.back strong{border:1px solid #dce7a67a;border-radius:50%;width:78px;height:78px;line-height:78px;font-size:54px;margin:auto;background:#244b3a}.card.back small{margin-bottom:15px}.card.back span{font-size:11px;letter-spacing:2px}.card.back i{margin:10px}.card.back:not(:disabled):hover{box-shadow:0 7px 0 #102b23,0 0 0 4px #dfe99a;cursor:pointer}.card.selected{outline:4px solid #eaf397;outline-offset:5px;transform:none;box-shadow:0 0 40px #eff99840}.watch-label{display:inline-block;color:#edf3ad;letter-spacing:2px;padding:16px;font-size:13px}.bonus-note{font-size:11px!important;opacity:.8;margin-top:24px}.statrow>div{border:1px solid #d4ddbf;background:#f0f3dc;border-radius:18px;padding:20px 30px}.statrow strong{color:#315c40}footer{color:#7a8573}.quiet{background:#fffaf0;border-color:#bac5ac}@media(max-width:750px){.hero h1{font-size:43px}.intro{padding:32px 26px}.game{padding:26px 14px}.game h2.prompt{font-size:46px}.choice{min-height:145px}.bonus-stage h2{font-size:27px}.bonus-steps{gap:3px;font-size:10px}.bonus-steps span{padding:7px}.cards{gap:18px;margin:30px 0}.card{height:190px}.card small{font-size:8px;margin:12px 0}.card strong{font-size:37px}.card i{margin:10px}.card.back strong{width:62px;height:62px;line-height:62px;font-size:45px}.card span{font-size:13px}.statrow>div{padding:16px}.art{margin-bottom:14px}}

.audio-controls{display:flex;gap:8px;align-items:center}#music[aria-pressed="true"]{background:#e8edbd;border-color:#99ac71}@media(max-width:750px){.audio-controls{gap:5px}.audio-controls .quiet{padding:8px 9px;font-size:11px}header{padding:0 14px}.brand{gap:7px;font-size:16px}.brand>span{font-size:24px;padding:4px 8px}}

/* English interface spacing, with Chinese retained in the question. */
.brand small{font-size:9px}.hero h1{font-size:52px;letter-spacing:-1.8px}.hero h1 em{font-size:48px}.game h2:not(.prompt){line-height:1.25}.card span{font-size:13px}.bonus-stage h2{font-size:34px}.timer{font-size:12px}.intro p{font-size:14px}.rule p{line-height:1.7}.audio-controls{flex-shrink:0}@media(max-width:750px){.hero h1{font-size:42px}.hero h1 em{font-size:40px}.bonus-stage h2{font-size:27px}.brand{font-size:15px}.audio-controls .quiet{font-size:10px;padding:8px}.topline{font-size:9px;letter-spacing:.4px}.timer{gap:7px;padding:10px;font-size:10px}.bonus-steps{font-size:10px}.card span{font-size:12px}.watch-label{font-size:11px;letter-spacing:.5px}}

.review-session{max-width:680px;margin:32px auto;padding:30px;background:#edf1dc;border:1px solid #becba5;border-radius:24px}.review-session h3{font-size:24px;margin:10px 0}.review-session>p{margin:8px 0 22px}.review-count{font-size:11px;letter-spacing:2px;color:#68804e}.review-fruit{font-size:112px;line-height:1.35;margin:16px auto;width:170px;height:165px;display:grid;place-items:center;background:#fffbee;border-radius:32px}.review-session h4{font-size:56px;line-height:1.3;letter-spacing:5px;margin:18px 0 5px}.review-pinyin{font-size:30px;color:#527541;letter-spacing:2px}.review-meaning{font-size:18px;color:#738067;margin:10px 0 25px}.review-finished{font-size:64px;color:#6b8c3c;margin:25px}.review-session h4.review-done{font-size:32px;letter-spacing:0}.review-session [hidden]{display:none}@media(max-width:750px){.review-session{padding:24px 15px}.review-session h3{font-size:21px}.review-session h4{font-size:50px}.review-pinyin{font-size:27px}}