:root{color-scheme:light;--paper:#f8f6ed;--ink:#334f3d;--muted:#74806c;--green:#3e664b;--line:#e1e3d5;--peach:#f5dfcd;font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-synthesis:none;color:var(--ink);background:var(--paper)}
*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer;touch-action:manipulation}button:disabled{cursor:default}button,a{outline-offset:5px}button:focus-visible,a:focus-visible,[tabindex="-1"]:focus-visible{outline:3px solid #d17c45}button{border:0}a{color:inherit}button svg{pointer-events:none}[hidden]{display:none!important}.topbar{height:103px;max-width:1180px;margin:auto;padding:0 34px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-size:19px;font-weight:750;letter-spacing:1px}.brand-mark{width:45px;height:45px;border-radius:15px;display:grid;place-items:center;background:#e6ebd9;color:var(--green);font-size:35px;line-height:1}.brand small{display:block;font-size:11px;font-weight:400;letter-spacing:2px;margin-top:4px;color:var(--muted)}.top-actions{display:flex;gap:25px;align-items:center}.age-label{font-size:12px;color:var(--muted)}.help-button{background:transparent;min-height:44px;font-size:13px;display:flex;align-items:center;gap:9px}.help-button>span{display:grid;place-items:center;border:1px solid #b7beab;border-radius:50%;width:22px;height:22px;font-weight:700}main{max-width:1112px;margin:auto;padding:0 24px}.hero{min-height:395px;display:grid;grid-template-columns:.9fr 1.1fr;align-items:center;position:relative;padding-top:23px}.hero-copy{padding:10px 0 16px 22px;z-index:1}.eyebrow{font-size:12px;letter-spacing:2px;color:var(--muted);display:inline-flex;align-items:center;gap:9px}.eyebrow i,footer i{width:6px;height:6px;background:#90a579;border-radius:50%;display:inline-block}h1,h2,p{margin:0}h1{font-size:64px;line-height:1.2;letter-spacing:3px;font-weight:800;margin:21px 0}h1 span{color:#cc8054}.hero p{font-size:15px;line-height:1.9;color:#75816e}.hero-chip{font-size:11px;color:#7a8069;display:flex;align-items:center;gap:8px;margin-top:23px}.hero-chip>span{font-size:18px}.hero-art svg{width:100%;display:block}.floating-note{position:absolute;right:35px;bottom:23px;font-size:11px;letter-spacing:2px;color:#677d58;transform:rotate(-4deg)}.start-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:15px 22px 38px}.start-button{display:flex;align-items:center;gap:20px;text-align:left;min-height:96px;padding:20px 27px;border-radius:21px;background:var(--green);color:#fffdf3;box-shadow:0 6px 0 #2c513d;transition:transform .18s,box-shadow .18s}.start-button:hover{transform:translateY(-2px)}.start-button:active{transform:translateY(3px);box-shadow:0 3px 0 #2c513d}.start-symbol{font-size:35px;width:42px;text-align:center}.start-button strong{display:block;font-size:23px;letter-spacing:2px}.start-button small{display:block;font-size:12px;opacity:.77;margin-top:7px}.arrow{margin-left:auto;font-size:29px}.challenge{background:#ede6cd;color:#5e6446;box-shadow:0 6px 0 #dcd4b9}.challenge:active{box-shadow:0 3px 0 #dcd4b9}.section-title{display:flex;justify-content:space-between;align-items:flex-end;padding:0 22px;margin:0 0 22px}.section-title .eyebrow{font-size:10px;letter-spacing:2px}.section-title h2{font-size:21px;letter-spacing:1px;margin-top:8px}.quiet-note{font-size:12px;color:#8a907c}.animal-library{display:grid;grid-template-columns:repeat(5,1fr);gap:15px;margin:0 22px}.animal-card{border:2px solid transparent;background:var(--card-color);border-radius:23px;padding:8px 11px 13px;transition:transform .18s,border-color .18s;position:relative;min-width:0}.animal-card:hover{transform:translateY(-4px)}.animal-card svg{display:block;width:100%;max-height:145px}.animal-name{display:flex;align-items:center;justify-content:center;gap:7px;font-size:16px;font-weight:650}.mini-sound{display:inline-flex;width:16px}.mini-sound svg{width:16px;height:16px}.animal-card.is-playing{border-color:var(--green);box-shadow:0 0 0 4px #3e664b12}.library-status{font-size:12px;text-align:center;min-height:36px;padding:14px 0 0;color:var(--muted)}footer{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:18px 22px 24px;color:#87907b;font-size:11px}footer>span{display:flex;align-items:center;gap:7px}footer button{background:none;color:#718164;font-size:11px;min-height:44px}.text-button{background:none;min-height:48px;padding:8px 13px;font-size:14px}.play-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:22px}.mode-pill{background:#e9eddf;border-radius:30px;font-size:12px;padding:9px 18px}.round-count{font-size:13px;min-width:110px;text-align:right;color:var(--muted)}.progress{display:flex;justify-content:center;gap:13px;margin:8px 0 20px}.progress span{font-size:25px;color:#dce1ce;line-height:1.2}.progress .complete{color:#dba958}.progress .current{color:#6b9360}.play-heading{text-align:center}.play-heading h1{font-size:34px;letter-spacing:1px;margin:12px 0}.play-heading p{font-size:14px;color:var(--muted)}.listen-area{position:relative;text-align:center;margin:20px auto;width:300px}.listen-button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;width:137px;height:137px;margin:auto;background:var(--green);color:#fff9e9;border-radius:50%;box-shadow:0 0 0 10px #e8ecdc,0 0 0 22px #f0f1e4;transition:transform .15s}.listen-button:hover{transform:scale(1.04)}#listen-icon{display:block;width:39px;height:39px}#listen-icon svg{width:100%;height:100%}#listen-label{font-size:16px;font-weight:700;letter-spacing:1px}.listen-button.is-playing{animation:breathe 1.2s ease-in-out infinite}.sound-sprig{position:absolute;left:26px;top:50px;font-size:23px;color:#c4ab68;transform:rotate(-16deg)}.sound-sprig.other{right:26px;left:auto;top:33px;color:#8caa7f;transform:rotate(16deg)}#audio-status{margin-top:24px;font-size:12px;line-height:1.5;color:var(--muted);min-height:18px}.choices{display:grid;grid-template-columns:repeat(var(--choice-count,2),minmax(0,1fr));gap:22px;max-width:720px;margin:24px auto 0}.choices[data-count="2"]{max-width:540px}.choice{border:3px solid transparent;padding:9px 15px 14px}.choice svg{max-height:166px}.choice .animal-name{font-size:21px}.choice:disabled{opacity:.65}.choice.correct{border-color:#53804c;opacity:1;box-shadow:0 4px 0 #bdcdb1}.choice.wrong{border-color:#c9a56f}.choice .answer-mark{position:absolute;right:11px;top:10px;color:#3e664b;border-radius:50%;width:30px;height:30px;background:#fff7dc;display:grid;place-items:center;font-size:19px}.feedback-row{min-height:111px;padding:20px 10px 25px;display:flex;flex-direction:column;align-items:center;gap:14px}.feedback-row p{text-align:center;min-height:24px;font-size:15px;line-height:1.6}.primary-button{background:var(--green);color:#fffdf3;border-radius:15px;min-height:51px;padding:13px 30px;font-size:16px;font-weight:650;box-shadow:0 4px 0 #2c513d}.primary-button:hover{background:#32583f}.finish{max-width:700px;margin:50px auto 0;text-align:center}.finish-badge{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;font-size:76px;color:#c6943b;width:168px;height:168px;background:#f5e7b6;border:8px solid #faf0cf;outline:1px dashed #d2bd7e;outline-offset:-17px;border-radius:50%;margin:0 auto 30px;line-height:1}.finish-badge span{font-size:11px;letter-spacing:2px}.finish h1{font-size:33px;margin:16px 0}.finish p{line-height:1.9;color:var(--muted);font-size:15px}.finish-friends{display:flex;justify-content:center;margin:16px auto 20px;max-width:550px}.finish-friends svg{width:20%}.finish-actions{display:flex;align-items:center;justify-content:center;gap:16px;margin:29px 0}.close-button{position:absolute;right:16px;top:12px;width:44px;height:44px;background:#edf0e4;border-radius:50%;font-size:27px}dialog{border:1px solid var(--line);border-radius:26px;background:var(--paper);color:var(--ink);width:min(540px,calc(100vw - 32px));max-height:85dvh;padding:42px 30px 30px}dialog::backdrop{background:#203a2c70;backdrop-filter:blur(4px)}dialog h2{font-size:26px;margin:13px 0 20px}dialog p{font-size:14px;line-height:1.9;margin:0 0 15px;color:#63735d}dialog a{font-size:13px}dialog .primary-button{display:block;width:100%;margin-top:24px}.credits{max-width:760px;margin:36px auto;padding:0 24px}.credits h1{font-size:32px}.credits p,.credits li{line-height:1.8;margin:15px 0}.credits li{margin-bottom:22px}.credits a{overflow-wrap:anywhere}.credits small{color:var(--muted)}@keyframes breathe{50%{box-shadow:0 0 0 14px #e8ecdc,0 0 0 28px #f0f1e4}}
@media(min-width:1300px){.hero{min-height:425px}.hero-art{max-width:570px}.hero h1{font-size:71px}}
@media(max-width:800px){.topbar{height:86px;padding:0 24px}.top-actions{gap:10px}.age-label{display:none}.hero{min-height:330px;grid-template-columns:1fr 1.1fr}.hero-copy{padding-left:5px}.hero h1{font-size:53px}.hero p{font-size:13px}.hero-chip{font-size:10px;margin-top:15px}.floating-note{right:17px;bottom:27px;font-size:10px}.start-row{margin:13px 0 33px;gap:17px}.start-button{padding:18px;gap:13px;min-height:92px}.start-button strong{font-size:21px}.start-symbol{font-size:30px;width:30px}.animal-library{margin:0;gap:10px}.animal-card{border-radius:18px;padding:6px 5px 11px}.animal-card svg{max-height:126px}.animal-name{font-size:14px}.section-title{padding:0}footer{padding:15px 0 20px}.choices{gap:15px}.choice svg{max-height:160px}.choice .animal-name{font-size:21px}}
@media(max-width:540px){.topbar{height:78px;padding:0 18px}.brand{font-size:16px;gap:9px}.brand-mark{width:39px;height:39px;font-size:30px}.brand small{font-size:9px;letter-spacing:1px}.help-button{font-size:12px;gap:5px}main{padding:0 19px}.hero{display:flex;flex-direction:column;align-items:stretch;padding-top:28px;min-height:0}.hero-copy{padding:0 5px}.hero .eyebrow{font-size:10px}.hero h1{font-size:51px;margin:13px 0;letter-spacing:2px}.hero h1 br{display:none}.hero p{font-size:13px;line-height:1.8}.hero p br{display:none}.hero-chip{font-size:10px;margin-top:10px}.hero-art{width:93%;margin:6px auto -2px}.floating-note{bottom:6px;right:17px;font-size:9px}.start-row{gap:12px;margin-top:15px;margin-bottom:32px}.start-button{padding:17px 12px;gap:7px;min-height:100px;border-radius:16px}.start-symbol{display:none}.start-button strong{font-size:19px;letter-spacing:1px}.start-button small{font-size:10px;line-height:1.6;max-width:105px}.arrow{font-size:20px}.section-title{margin-bottom:16px}.section-title h2{font-size:18px}.quiet-note{display:none}.animal-library{grid-template-columns:repeat(3,1fr);gap:10px}.animal-card svg{max-height:104px}.animal-name{font-size:14px}.library-status{font-size:11px;line-height:1.8;padding:14px 0 0}footer{font-size:10px;align-items:flex-start;padding-top:12px}footer>span{line-height:1.9;max-width:180px}footer button{font-size:10px;white-space:nowrap;padding:0;min-height:30px}.play-toolbar{padding-top:12px;gap:4px}.play-toolbar .text-button{font-size:12px;padding:5px 0}.mode-pill{font-size:10px;padding:7px 10px}.round-count{min-width:80px;font-size:11px}.progress{margin:8px 0 14px;gap:10px}.progress span{font-size:23px}.play-heading h1{font-size:24px;margin:10px 0;letter-spacing:0}.play-heading p{font-size:12px}.play-heading .eyebrow{font-size:10px}.listen-area{margin:24px auto 19px}.listen-button{width:116px;height:116px}.listen-button #listen-icon{width:32px;height:32px}#listen-label{font-size:14px}#audio-status{font-size:11px}.choices{gap:10px;margin-top:20px}.choice{padding:5px 4px 11px;border-radius:19px}.choice svg{max-height:132px}.choices[data-count="3"] .choice svg{max-height:103px}.choice .animal-name{font-size:18px}.choices[data-count="3"] .animal-name{font-size:16px}.choice .answer-mark{top:4px;right:4px;width:24px;height:24px;font-size:15px}.feedback-row{min-height:120px;padding-top:17px}.feedback-row p{font-size:13px}.finish{margin-top:38px}.finish-badge{width:145px;height:145px;font-size:60px}.finish h1{font-size:25px;letter-spacing:0}.finish .eyebrow{font-size:10px}.finish p{font-size:13px}.finish-actions{flex-direction:column;gap:10px}.finish-friends{margin:20px 0}dialog{padding:39px 24px 24px}dialog h2{font-size:23px}}
@media(max-height:780px) and (min-width:700px){.topbar{height:75px}.play-toolbar{padding-top:8px}.progress{margin:0 0 9px}.play-heading h1{font-size:28px;margin:8px 0}.listen-area{margin:18px auto 12px}.listen-button{width:105px;height:105px}#listen-icon{width:29px;height:29px}#listen-label{font-size:14px}#audio-status{margin-top:20px}.choices{margin-top:14px;max-width:620px}.choices[data-count="2"]{max-width:430px}.choice svg{max-height:128px}.choice .animal-name{font-size:18px}.feedback-row{padding-top:14px;gap:10px;min-height:101px}}
@media(max-width:540px){.hero h1 br{display:initial}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@supports(padding:max(0px)){body{padding-bottom:env(safe-area-inset-bottom)}}