@charset "UTF-8";
:root{--ink:#304637;--muted:#768074;--green:#426b45;--lime:#deedaf;--cream:#f7f8ee;--border:#e4e8d8;--orange:#d68b4b;--paper:#fffef9;--red:#a84936;--shadow:0 8px 0 #e8ecdb; font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);background:var(--cream);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;line-height:1.65}button,input,textarea,select{font:inherit}button,a,input,textarea,summary,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button:disabled{cursor:default;opacity:.48}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #c3853e;outline-offset:4px}input:focus,textarea:focus{outline:3px solid #d5e9a6;border-color:var(--green)}a{color:var(--green);text-underline-offset:4px}header{max-width:1100px;margin:auto;height:108px;padding:18px 38px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.brand{background:none;border:0;padding:0;display:flex;align-items:center;gap:12px;text-align:left;font-weight:800;font-size:22px;letter-spacing:1px}.brand img{width:49px;height:49px}.brand small{display:block;font-size:9px;letter-spacing:3.2px;font-weight:700;color:#849074;margin-top:-1px}.header-right{display:flex;align-items:center;gap:20px}.stars{background:#f8edc8;border:1px solid #eedeab;border-radius:30px;padding:6px 17px;font-weight:800;color:#a87927}.plain{border:0;background:none;padding:12px 8px;color:var(--muted);font-size:14px}.plain:hover{color:var(--green)}main{max-width:1024px;padding:0 30px;margin:0 auto;min-height:75vh}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:center;max-width:880px;margin:60px auto 42px}.eyebrow{font-size:10px;letter-spacing:2px;color:#7d8a6a;font-weight:800;margin:0 0 15px}.hero h1{font-size:44px;line-height:1.4;letter-spacing:1px;margin:0 0 18px}.hero h1 span{color:var(--green)}.hero p:not(.eyebrow){font-size:16px;line-height:1.9;color:var(--muted);margin-bottom:24px}.primary{background:var(--green);color:white;border:1px solid #355c37;box-shadow:0 4px 0 #2d4e30;border-radius:15px;padding:14px 28px;font-weight:750;min-height:53px;transition:transform .15s,box-shadow .15s}.primary:hover{background:#355d38;transform:translateY(-1px)}.primary:active{transform:translateY(3px);box-shadow:0 1px 0 #2d4e30}.primary:disabled{transform:none}.secondary,.audio-button{border:1.5px solid #dbe2c9;background:#fffef8;border-radius:13px;padding:11px 18px;min-height:49px;color:var(--green);font-weight:700}.audio-button{background:#eff4db}.audio-button:hover,.secondary:hover{border-color:#91ad65}.hero-note{display:block;color:#8d967e;font-size:11px;margin-top:15px}.hero-art{position:relative;max-width:340px;width:100%;height:308px;display:flex;align-items:end;justify-content:center;background:#e9efcf;border-radius:49% 49% 43% 50%;margin-left:auto}.hero-art>svg{width:255px;filter:drop-shadow(0 8px 0 #e0e5be);margin-bottom:15px}.art-bubble{position:absolute;top:15px;left:65px;background:var(--paper);padding:8px 20px;font-family:Georgia,serif;font-style:italic;font-weight:bold;border:1px solid #d6ddbb;border-radius:18px 18px 18px 0;transform:rotate(-5deg)}.floating{position:absolute;font-family:Georgia,serif;font-weight:bold;font-size:25px;border-radius:14px;padding:8px 16px;background:#fae6c4;box-shadow:0 5px 0 #eadcbb}.floating.a{left:-10px;top:95px;transform:rotate(-10deg)}.floating.b{right:-5px;top:100px;transform:rotate(8deg);background:#e9e4f3}.journey-status{border:1px solid var(--border);background:#fffef8;border-radius:20px;padding:22px 27px;display:grid;grid-template-columns:46px 1fr 65px;gap:18px;align-items:center;max-width:880px;margin:0 auto 46px;box-shadow:0 5px 0 #edf0df}.progress-icon{font-size:30px}.status-title{display:flex;justify-content:space-between;font-size:14px;margin-bottom:10px}.status-title>span{font-size:12px;color:var(--muted)}.progress{height:8px;border-radius:10px;background:#e9eddd;overflow:hidden}.progress i,.mini-progress i{display:block;height:100%;background:#91ae63;border-radius:8px;transition:width .5s}.journey-status small{font-size:11px;color:#839074}.status-count{font-family:Georgia,serif;font-weight:bold;font-size:34px;text-align:right;color:var(--green)}.status-count small{font-size:16px}.route-heading{max-width:800px;margin:0 auto 26px;display:flex;align-items:end;justify-content:space-between}.route-heading .eyebrow{margin-bottom:4px}.route-heading h2{font-size:23px;margin:0}.route-heading>span{color:#929b86;font-size:11px}.roadmap{position:relative;max-width:690px;margin:0 auto}.roadmap:before{content:"";position:absolute;top:40px;bottom:50px;left:29px;border-left:3px dashed #d8dfc5}.route-stop{display:flex;position:relative;padding:0 0 24px;gap:22px;align-items:center}.route-node{flex:0 0 60px;z-index:1;width:60px;height:60px;border-radius:50%;background:#edf0e1;border:7px solid var(--cream);display:grid;place-items:center;color:#abb39d;font-size:15px;font-weight:800}.active .route-node{background:#486f47;color:white}.complete 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0}.stage-copy>span:not(.mini-progress){font-size:12px;color:#8a947e}.stage-arrow{font-size:22px;color:#8da16e}.locked .stage-arrow{font-size:16px}.here-tag{position:absolute;right:27px;top:-9px;padding:1px 10px;border-radius:9px;background:#dfeeb4;color:#52733b;font-size:10px}.mini-progress{max-width:140px;height:4px;background:#e1e8cf;border-radius:5px;margin-top:10px}.gentle-note{font-size:12px;text-align:center;color:#8b967b;padding:20px 0 35px}footer{max-width:1000px;margin:30px auto 0;padding:25px 30px 35px;border-top:1px solid var(--border);color:#97a087;display:flex;justify-content:space-between;font-size:10px}.lesson-top{display:flex;align-items:center;justify-content:space-between;font-size:14px;padding:25px 0 15px}.lesson-stars{color:#b98b38}.lesson-progress{display:flex;align-items:center;gap:15px;font-size:11px;color:#8b967d;max-width:800px;margin:0 auto 20px}.lesson-progress .progress{flex:1;height:6px}.lesson-panel{max-width:800px;margin:0 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20px;font-weight:750;overflow-wrap:anywhere}.order-answer{border:1px dashed #b8c49f;border-radius:15px;min-height:86px;padding:20px 12px;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;background:#f4f6e9;color:#879476;font-size:17px}.order-answer span{font-size:23px;color:#466d42}.order-answer b{font-weight:400}.order-options{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin:20px 0}.order-options button{min-width:66px}.order-options button:disabled{opacity:.3}.rule-inputs{margin:22px auto;max-width:480px;display:flex;flex-direction:column;gap:12px}.rule-inputs label{display:flex;align-items:center;gap:12px;text-align:left}.rule-inputs strong{border-radius:10px;padding:4px 12px;min-width:53px;font-size:23px;text-align:center}.rule-inputs span{font-size:12px;white-space:nowrap;color:#8b957e}.rule-inputs input{width:100%;min-width:0;font-size:22px}.ipa-entry{display:flex;flex-direction:column;text-align:left;gap:10px;color:#839274;font-size:13px;max-width:480px;margin:20px auto}.ipa-entry input{font-size:25px;min-height:60px}.ipa-keyboard{border:1px solid var(--border);border-radius:16px;background:#f3f5e9;padding:12px;margin:25px auto;text-align:left}.ipa-keyboard summary{font-size:13px;font-weight:700;color:#6d8657;cursor:pointer}.ipa-keyboard small{font-size:10px;margin-left:10px;color:#9ba28e}.ipa-keyboard>div{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;margin-top:15px}.ipa-key{border:1px solid #dce2cb;border-bottom-width:3px;min-height:43px;font-size:19px;border-radius:8px;background:#fffef8;padding:4px;color:#516949}.ipa-key:hover{background:#e7f1d0}.ipa-key.wide{grid-column:span 2;font-size:12px}.mic-button{background:#dff0bf;border:2px solid #a7c37b;border-bottom-width:4px;border-radius:16px;padding:14px 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0 0;line-height:1.3}.score small{font-size:24px;margin-left:5px}.result>.big-tip{text-align:center}.result>p:not(.big-tip):not(.score){font-size:12px;color:#939c84}.confetti{position:absolute;font-size:25px;color:#c99c4c;animation:float 2s ease-in-out infinite}.confetti.one{top:30px;left:15%}.confetti.two{top:90px;right:10%;color:#94b35f;animation-delay:.5s}.confetti.three{top:180px;left:5%;color:#c9aa92;animation-delay:.8s}.review-nav{text-align:center}.settings-panel{max-width:790px;margin:45px auto}.settings-panel h1{font-size:29px}.settings-panel h2{font-size:19px}.settings-panel>label{display:block;margin-bottom:20px}.settings-panel input{margin-left:12px}.settings-panel>p{font-size:14px;color:#849175}.settings-box{border:1px solid var(--border);border-radius:20px;background:var(--paper);padding:20px 25px;margin:20px 0}.settings-box p{font-size:13px;line-height:2;color:#839074}.settings-box label{font-size:12px;display:block;margin:12px 0}.settings-box select{display:block;max-width:100%;padding:10px;margin-top:8px;border:1px solid #d4ddc0;border-radius:10px;background:#f4f6eb;color:#587247}.settings-box .audio-button{font-size:13px;padding:10px;margin:4px 4px 4px 0}.settings-box .import-label input{display:block;margin:10px 0;padding:10px;max-width:100%;font-size:12px}.reset-box{border-color:#e4cdb4}.danger{border:1px solid #d2ab91;border-radius:12px;color:#a16b48;background:#fbefdf;padding:12px 18px}.warning{font-size:13px;background:#fae7c9;color:#975e32;padding:12px 18px;border-radius:10px}.skip{position:absolute;left:-1000px}.skip:focus{left:20px;top:20px;background:white;padding:10px;z-index:5}#toast{position:fixed;left:50%;bottom:35px;transform:translateX(-50%) translateY(25px);background:#344c35;color:white;padding:14px 23px;border-radius:15px;box-shadow:0 8px 30px #30463722;max-width:90vw;width:max-content;z-index:100;font-size:14px;opacity:0;pointer-events:none;transition:.2s}#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}audio{max-width:100%;width:100%}.sources{max-width:760px;margin:40px auto;padding:0 24px}.sources h1{font-size:29px}.sources h2{font-size:21px;margin-top:30px}.sources p,.sources li{font-size:14px;line-height:1.9}.sources table{border-collapse:collapse;font-size:12px;width:100%}.sources td,.sources th{text-align:left;padding:10px;border-bottom:1px solid var(--border)}
@keyframes pulse{50%{opacity:.6}}@keyframes float{50%{transform:translateY(-12px) rotate(10deg)}}
@media(min-width:900px){.route-stop:nth-child(2n) .stage-card{margin-left:30px}.roadmap:before{left:29px}.stage-card{transition:.15s}}
@media(max-width:680px){header{height:82px;margin:0 16px;padding:12px 0}.brand{font-size:18px;gap:8px}.brand img{width:41px;height:41px}.brand small{font-size:7px;letter-spacing:2.5px}.header-right{gap:8px}.stars{font-size:13px;padding:4px 12px}.parent-label{display:none}main{padding:0 18px}.hero{margin:35px auto 25px;grid-template-columns:1.2fr 1fr;gap:4px}.hero .eyebrow{font-size:7px;letter-spacing:1px;margin-bottom:12px}.hero h1{font-size:27px;margin-bottom:12px;line-height:1.45;letter-spacing:0}.hero p:not(.eyebrow){font-size:11px;line-height:1.9;margin:0 0 17px}.hero .primary{font-size:13px;padding:11px 17px;min-height:46px}.hero-note{font-size:8px;margin-top:12px}.hero-art{height:174px;max-width:156px;margin-right:0}.hero-art>svg{width:155px;margin-bottom:0}.art-bubble{font-size:11px;top:-10px;left:20px;padding:4px 12px}.floating{font-size:15px;padding:4px 8px;border-radius:8px}.floating.a{left:0;top:35px}.floating.b{right:0;top:56px}.journey-status{padding:16px 17px;grid-template-columns:27px 1fr 37px;gap:11px;border-radius:16px;margin-bottom:35px}.progress-icon{font-size:23px}.status-title{font-size:12px}.status-title>span{font-size:10px}.journey-status small{font-size:9px}.status-count{font-size:27px}.status-count small{font-size:12px}.route-heading{align-items:start;margin-bottom:20px}.route-heading .eyebrow{font-size:8px;letter-spacing:1.4px}.route-heading h2{font-size:20px}.route-heading>span{font-size:9px;width:76px;text-align:right;padding-top:10px}.route-stop{gap:8px;padding-bottom:20px}.route-node{flex-basis:34px;width:34px;height:34px;border-width:4px;font-size:11px}.roadmap:before{left:16px;border-width:2px}.stage-card{padding:17px 15px;gap:12px;min-height:108px;border-radius:17px}.stage-emoji{font-size:25px;flex-basis:43px;height:47px;border-radius:12px}.stage-copy>small{font-size:9px}.stage-copy>strong{font-size:18px}.stage-copy>span:not(.mini-progress){font-size:10px}.stage-arrow{font-size:18px}.here-tag{right:18px;font-size:9px}.gentle-note{font-size:10px}footer{font-size:9px;display:block;text-align:center;padding:20px 15px}footer>span{display:block;margin-top:6px}.lesson-top{padding:15px 0 12px;font-size:11px}.lesson-top .plain{font-size:11px;padding-left:0}.lesson-stars{display:none}.lesson-progress{font-size:10px;gap:10px}.lesson-panel{padding:23px 18px 21px;border-radius:20px}.task-heading h1{font-size:18px}.task-heading{padding-bottom:17px}.learn-card{padding-top:18px;min-height:310px}.letter-pair{font-size:88px;gap:36px}.sound-symbol{font-size:63px;margin:25px 0 20px}.big-tip{font-size:16px;line-height:1.9;margin:20px auto}.tip-box{padding:15px;margin:20px 0 16px}.tip-box p{font-size:15px}.example-row{padding:13px;gap:8px}.example-row strong{font-size:21px}.example-row span{font-size:18px}.example-row .audio-button{font-size:12px;padding:10px 12px}.task-nav .primary,.task-nav .secondary{font-size:14px;padding:12px 15px}.task-nav>span{font-size:11px}.listen-note{font-size:10px}.learn-card h2{font-size:21px}.rule-examples{gap:8px}.rule-word{flex-basis:120px;max-width:47%;padding:14px 7px}.rule-word strong{font-size:24px}.rule-word .ipa{font-size:20px}.word-title{font-size:40px}.word-ipa{font-size:25px}.chunks{gap:6px;margin-top:25px}.chunk{min-width:49px;padding:6px 9px;min-height:73px}.chunk strong{font-size:24px}.chunk span{font-size:17px}.blend-equation{font-size:17px}.audio-actions{gap:8px}.audio-actions>button{font-size:13px;padding:12px 15px}.question-prompt{font-size:18px}.options{gap:10px}.option{font-size:23px;padding:13px 10px;min-height:59px}.alphabet-grid{grid-template-columns:repeat(5,1fr);gap:7px}.alphabet-grid .option{font-size:22px;padding:7px}.question-word{font-size:43px}.rule-inputs label{gap:8px}.rule-inputs strong{min-width:46px;padding:4px 8px;font-size:22px}.rule-inputs input{font-size:21px;padding:8px;min-height:51px}.rule-inputs span{font-size:11px}.ipa-keyboard{padding:10px;margin-left:-5px;margin-right:-5px}.ipa-keyboard>div{grid-template-columns:repeat(6,1fr);gap:5px}.ipa-key{min-height:44px;font-size:20px}.oral-task .audio-actions{margin-top:23px}.mic-button{width:100%;font-size:17px!important}.privacy-note{font-size:10px}.feedback{padding:17px}.feedback h3{font-size:17px}.feedback p{font-size:13px}.result{padding:24px 0}.result h2{font-size:22px}.settings-panel{margin-top:30px}.settings-panel h1{font-size:24px}.settings-box{padding:15px 18px}.settings-panel>label input,.settings-box input{display:block;margin:10px 0}.settings-panel .primary{margin-top:12px}.order-options{gap:8px}.order-options .option{font-size:22px;min-width:61px}.mapping-line{gap:18px}.mapping-line>strong{font-size:65px}.mapping-line>b{font-size:36px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.privacy-note summary{cursor:pointer;font-size:11px}.privacy-note p{font-size:11px;line-height:1.9}
@media(max-width:680px){.hero p:not(.eyebrow){font-size:13px}.hero .primary{font-size:15px}.hero-note{font-size:10px}.stage-copy>small{font-size:10px}.stage-copy>span:not(.mini-progress){font-size:12px}.audio-actions>button{font-size:15px}.rule-word .audio-button{font-size:14px}}