@import url('/fonts.css');
:root{font-family:ui-rounded,'Arial Rounded MT Bold','Trebuchet MS','PingFang SC','Microsoft YaHei',sans-serif;color:#173c38;background:#f5f8f6;font-synthesis:none;--green:#087f70;--dark:#14594f;--mint:#e0f4e9;--yellow:#ffda67;--ink:#173c38;--muted:#647a75;--line:#dce8e2;--shadow:0 6px 0 #076556}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled{cursor:default;opacity:.48}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:4px solid #eea832;outline-offset:4px}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{border:0}h1,h2,h3,p{margin:0}h1,h2,h3{letter-spacing:-.03em}p{line-height:1.7}a{color:var(--green)}.loading{min-height:90vh;display:grid;place-content:center;text-align:center;gap:20px}.loading span{font-size:60px}.wrap{max-width:1200px;margin:auto;padding:0 36px}.topbar{height:96px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;background:none;color:var(--ink);text-align:left}.brand-icon{font-size:32px;width:54px;height:54px;display:grid;place-items:center;background:#e4f3dd;border-radius:18px}.brand b{display:block;font-size:21px;letter-spacing:-.6px}.brand small{display:block;font-size:13px;color:#647a75;letter-spacing:1.7px;margin-top:4px}.topright{display:flex;align-items:center;gap:14px}.pill{display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--line);padding:10px 15px;border-radius:40px;font-weight:700;font-size:15px;white-space:nowrap}.pill.gold{background:#fff6d7;border-color:#f2e4b3;color:#735712}.quiet{background:none;color:var(--muted);font-size:14px;padding:12px}.primary,.secondary,.danger{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:56px;padding:14px 27px;border-radius:17px;font-size:18px;font-weight:800;line-height:1.35}.primary{background:var(--green);color:white;box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s}.primary:active:not(:disabled){transform:translateY(4px);box-shadow:0 2px 0 #076556}.primary.yellow{background:var(--yellow);color:#433911;box-shadow:0 5px 0 #dcb447}.secondary{background:#fff;border:2px solid var(--line);color:var(--ink);box-shadow:0 3px 0 var(--line)}.danger{background:#fff0eb;color:#a64231;font-size:15px;min-height:44px}.eyebrow{font-size:13px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--green)}.subtle{color:var(--muted);font-size:15px}.hero{min-height:360px;position:relative;overflow:hidden;border-radius:32px;background:#c5eddf url('/assets/island.webp') right 46%/cover no-repeat;isolation:isolate}.hero:before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#d9f2e9 0%,#d9f2e9ed 25%,#d9f2e918 60%);z-index:-1}.hero-content{max-width:56%;padding:43px 44px}.hero h1{font-size:43px;line-height:1.22;margin:15px 0 12px;font-weight:900}.hero p{font-size:16px;color:#426d62;margin-bottom:25px}.hero .small-note{font-size:13px;margin:16px 0 0}.hero-tag{display:inline-flex;background:#ffffffb8;border:1px solid #fff9;border-radius:20px;padding:7px 13px;font-size:13px;font-weight:700;gap:7px}.homegrid{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:25px;margin:30px 0 40px}.section-head{display:flex;align-items:center;justify-content:space-between;margin:7px 0 20px;gap:12px}.section-head h2{font-size:23px}.section-head span{color:var(--muted);font-size:14px}.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.lesson{position:relative;border:2px solid var(--line);background:white;min-height:173px;padding:19px 16px 16px;border-radius:22px;text-align:left;color:var(--ink);box-shadow:0 4px 0 #e7eeea;transition:transform .15s,border-color .15s}.lesson:hover{transform:translateY(-3px);border-color:#83b9a4}.lesson.active{border-color:var(--green);background:#eef9f1;box-shadow:0 4px 0 #badcca}.lesson-num{position:absolute;top:17px;right:14px;font-size:12px;color:var(--muted);background:#f1f5f2;border-radius:8px;padding:3px 7px}.lesson-emoji{font-size:36px;display:block;margin-bottom:15px}.lesson h3{font-size:16px;margin-bottom:6px}.lesson p{font-size:13px;color:var(--muted)}.lesson-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:12px;font-size:12px;font-weight:700;color:#73857c}.starline{letter-spacing:2px;color:#d5dfd7;font-size:16px}.starline .earned{color:#c69814}.sidecard{border:1px solid var(--line);background:white;border-radius:24px;padding:22px;margin-bottom:18px}.sidecard h3{font-size:18px}.dailytitle{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px}.dailytitle span{font-size:23px}.goal-row{display:flex;justify-content:space-between;margin-bottom:9px;font-size:14px}.sidecard progress{width:100%;height:12px}.sidecard .subtle{font-size:13px;margin-top:12px}.sidecard.review{background:#fff6da;border-color:#f0e2b7}.review .secondary{font-size:15px;width:100%;min-height:46px;margin-top:15px;background:#fffdf5;border-color:#e8dcaf}.buddy{font-size:38px;margin-bottom:12px}.sticker-preview{display:flex;gap:12px;margin-top:19px;font-size:29px}.faded{filter:grayscale(1);opacity:.35}.footer{padding:20px 0 30px;text-align:center;color:var(--muted);font-size:12px}.nav-tabs{display:flex;gap:8px;background:white;padding:6px;border:1px solid var(--line);border-radius:16px}.nav-tabs button{background:none;padding:10px 19px;color:var(--muted);border-radius:10px;font-weight:700;font-size:14px}.nav-tabs button.selected{background:var(--mint);color:var(--green)}.login-layout{max-width:1150px;min-height:calc(100svh - 100px);display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:70px;margin:auto;padding:30px 36px 65px}.login-art{min-height:600px;border-radius:38px;background:#c5eddf url('/assets/island.webp') center/cover no-repeat;display:flex;flex-direction:column;align-items:flex-start;padding:34px}.login-art h1{font-size:44px;line-height:1.15;max-width:260px;margin-top:20px}.login-art p{font-size:15px;max-width:220px;margin-top:15px;color:#3e675e}.login-panel .eyebrow{margin-bottom:18px}.login-panel h2{font-size:34px;margin-bottom:12px}.login-panel>p{color:var(--muted);margin-bottom:29px}.login-panel label,.dialog-form label{display:block;font-size:14px;font-weight:700;margin-bottom:9px}.field{width:100%;border:2px solid var(--line);border-radius:15px;background:#fff;padding:15px 16px;color:var(--ink);font-size:18px;margin-bottom:20px;min-height:57px}.login-panel .primary{width:100%;margin-top:5px}.login-note{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-top:25px;line-height:1.6}.error{color:#a13c29;background:#fff0ec;border-radius:12px;font-size:14px;padding:12px;margin:12px 0}.hidden{display:none!important}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);max-width:min(92vw,530px);padding:14px 22px;border-radius:16px;color:white;background:#173c38;box-shadow:0 6px 25px #0002;z-index:50;opacity:0;pointer-events:none;transition:opacity .2s;text-align:center;font-size:15px}#toast.show{opacity:1}dialog{border:0;border-radius:25px;padding:30px;max-width:440px;width:calc(100% - 36px);box-shadow:0 24px 100px #173c3833;color:var(--ink)}dialog::backdrop{background:#103e3577;backdrop-filter:blur(5px)}dialog h2{font-size:25px;margin-bottom:12px}dialog p{font-size:15px;color:var(--muted);margin-bottom:20px}.dialog-actions{display:flex;gap:12px;justify-content:flex-end}.dialog-actions button{font-size:15px}.dialog-form .field{margin-top:12px}.game-wrap{max-width:850px;margin:auto;padding:25px 30px 45px}.game-head{display:flex;align-items:center;gap:22px}.iconbtn{width:48px;height:48px;border-radius:50%;background:white;border:2px solid var(--line);font-size:23px;color:var(--ink);flex-shrink:0}.game-head progress{flex:1;height:15px;min-width:0}.game-head span{font-size:14px;font-weight:700;white-space:nowrap}progress{appearance:none;border:none;border-radius:20px;background:#e0eae3;overflow:hidden}progress::-webkit-progress-bar{background:#e0eae3;border-radius:20px}progress::-webkit-progress-value{background:#0aa485;border-radius:20px}progress::-moz-progress-bar{background:#0aa485;border-radius:20px}.game-meta{display:flex;justify-content:space-between;align-items:center;margin:25px 0 16px;font-size:14px;color:var(--muted);gap:14px}.game-meta b{color:var(--green)}.activity{background:white;border:1px solid var(--line);border-radius:30px;padding:29px 40px 34px;text-align:center;box-shadow:0 7px 0 #e5eee7;min-height:470px;position:relative}.step-pill{display:inline-flex;padding:8px 14px;background:#eaf6ee;border-radius:20px;font-size:13px;color:var(--green);font-weight:800;gap:8px}.activity h1{font-size:29px;margin:18px 0 8px}.hint{font-size:15px;color:var(--muted);display:flex;justify-content:center;gap:7px;align-items:center}.hint button{font-size:17px;background:#f1f7f3;color:var(--green);border-radius:30px;width:34px;height:34px}.word-card{background:#f1f8ec;border:1px solid #e0edda;border-radius:25px;padding:25px 15px;margin:24px auto 20px;max-width:430px}.word-art{font-size:83px;line-height:1.3;display:block;margin:5px 0 18px}.word-text{font-size:35px;font-weight:900;line-height:1.25;margin-bottom:8px}.word-zh{font-size:15px;color:var(--muted)}.listen-buttons{display:flex;justify-content:center;gap:12px;margin-top:22px}.listen-buttons .primary,.listen-buttons .secondary{min-height:53px;padding:12px 20px;font-size:16px}.sound-big{width:82px;height:82px;border-radius:26px;background:var(--yellow);box-shadow:0 5px 0 #d7b34f;font-size:36px;margin-top:22px}.choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;max-width:530px;margin:25px auto 16px}.choice{display:flex;flex-direction:column;gap:12px;align-items:center;justify-content:center;background:#f9fbf7;border:2px solid var(--line);border-radius:22px;min-height:143px;padding:18px 10px;color:var(--ink)}.choice .emoji{font-size:47px;line-height:1.15}.choice .choice-zh{font-size:14px;color:#4e7164}.choice:hover{border-color:#9fcbb4;background:#eef8f0}.choice.correct{background:#def5db;border-color:#69b65d}.choice.wrong{background:#fff4db;border-color:#f0c757}.feedback{min-height:30px;font-size:16px;font-weight:700;color:var(--green);margin:18px 0 7px;line-height:1.6}.feedback.amber{color:#936514}.game-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:25px}.game-bottom p{color:var(--muted);font-size:14px;max-width:450px}.game-bottom .primary{min-width:170px}.record-controls{display:flex;flex-direction:column;align-items:center;gap:15px}.record-button{width:100%;max-width:310px;min-height:60px;border-radius:20px;background:#ed7960;box-shadow:0 5px 0 #c95641;color:white;font-size:19px;font-weight:800}.record-button.recording{background:#d24b3f;animation:pulse 1.5s infinite}.recording meter{width:160px}.recording-row{display:flex;align-items:center;gap:10px;color:#b54537;font-size:14px}meter{height:16px;width:160px}.replay{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.replay .secondary{font-size:15px;min-height:45px;padding:10px 15px}.skip{background:none;color:var(--muted);text-decoration:underline;text-underline-offset:5px;padding:12px;font-size:14px}.mic-note{font-size:12px;color:var(--muted);margin-top:13px}.complete{max-width:650px;margin:35px auto;text-align:center;background:white;border:1px solid var(--line);border-radius:32px;padding:38px 40px}.trophy{font-size:83px;animation:float 3s ease-in-out infinite}.complete h1{font-size:34px;margin:17px 0 12px}.complete .starline{font-size:38px;margin-bottom:18px}.complete .subtle{margin-bottom:24px}.complete-stats{display:flex;justify-content:center;gap:30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:21px 0;margin:24px 0}.complete-stats b{font-size:24px;display:block;margin-bottom:5px}.complete-stats span{font-size:13px;color:var(--muted)}.moods{display:flex;gap:10px;justify-content:center;margin:17px 0 28px}.moods button{background:#f6f8f1;border:2px solid var(--line);border-radius:17px;padding:11px 17px;font-size:14px;color:var(--ink)}.moods button.selected{border-color:var(--green);background:var(--mint)}.moods span{display:block;font-size:29px;margin-bottom:6px}.album{margin:20px 0 45px}.album-head{text-align:center;padding:25px 10px 35px}.album-head h1{font-size:32px;margin-bottom:12px}.album-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.sticker{background:white;border:2px solid var(--line);border-radius:24px;padding:27px 17px;text-align:center}.sticker .emoji{display:block;font-size:59px;margin-bottom:20px}.sticker h3{font-size:17px;margin-bottom:9px}.sticker p{font-size:13px;color:var(--muted)}.sticker.unearned{background:#f0f3ef}.sticker.unearned .emoji{filter:grayscale(1);opacity:.35}.report{padding:12px 0 40px}.report-title{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:5px 0 25px}.report-title h1{font-size:30px;margin-bottom:8px}.report-title .secondary{font-size:14px;min-height:46px}.report-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.metric{background:white;border:1px solid var(--line);border-radius:19px;padding:23px}.metric span{color:var(--muted);font-size:14px}.metric b{display:block;font-size:33px;margin:12px 0 6px}.metric small{font-size:12px;color:var(--muted)}.report-block{background:white;border:1px solid var(--line);border-radius:23px;padding:25px;margin-top:22px}.report-block h2{font-size:21px;margin-bottom:17px}.week{display:grid;grid-template-columns:repeat(7,1fr);gap:14px;text-align:center;padding:5px 0}.day{font-size:12px;color:var(--muted)}.day b{display:block;color:var(--green);font-size:16px;margin-bottom:10px}.day meter{width:100%;height:15px;display:block;margin-bottom:10px}.report-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px}.report-columns .report-block{min-width:0}.report-list{display:flex;flex-direction:column;gap:13px}.report-row{display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid #edf2ee;padding:9px 0 16px;font-size:14px}.report-row:last-child{border-bottom:0}.report-row b{font-size:15px}.report-row small{display:block;font-size:12px;color:var(--muted);margin-top:6px}.report-row button{background:#eef6ee;border-radius:12px;padding:10px;color:var(--green);font-size:14px}.audio-row{border-bottom:1px solid var(--line);padding:16px 0;display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}.audio-row audio{display:block;width:100%;height:38px;grid-column:1/-1}.audio-row button{background:none;color:#a14d3c;font-size:13px;padding:10px}.audio-row p{font-size:15px}.audio-row small{font-size:12px;color:var(--muted)}.report-block textarea{min-height:100px;font-size:15px;margin-bottom:12px;resize:vertical}.report-block .primary{min-height:44px;font-size:15px;padding:10px 20px}.note{background:#f4f8f3;border-radius:15px;padding:13px 15px;margin-top:13px}.note p{font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere}.note small{font-size:12px;color:var(--muted)}.empty{padding:25px 10px;text-align:center;color:var(--muted);font-size:15px}.learning-note{margin-top:18px;padding:17px 20px;background:#fff7de;border-radius:15px;font-size:14px;line-height:1.8;color:#6d622b}.offline-banner{background:#fff0bf;color:#655321;text-align:center;padding:12px;font-size:14px}.busy{pointer-events:none;opacity:.7}@keyframes float{50%{transform:translateY(-7px)}}@keyframes pulse{50%{box-shadow:0 0 0 10px #ed796022}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}@media(min-width:1400px){.wrap{max-width:1280px}.hero{min-height:385px}.hero-content{padding-top:50px}.homegrid{grid-template-columns:minmax(0,1fr) 320px}.lesson{min-height:183px}}@media(max-width:950px){.wrap{padding:0 24px}.topbar{height:85px}.topright .nav-tabs{display:none}.homegrid{grid-template-columns:minmax(0,1fr) 245px;gap:20px}.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero h1{font-size:36px}.hero-content{padding:34px 30px;max-width:62%}.hero{min-height:330px}.sidecard{padding:19px}.login-layout{gap:35px}.login-art{min-height:550px;padding:25px}.login-art h1{font-size:36px}.album-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:680px){.wrap{padding:0 18px}.topbar{height:83px;gap:10px}.brand{gap:8px;padding:0}.brand-icon{width:43px;height:43px;border-radius:14px;font-size:27px}.brand b{font-size:17px}.brand small{font-size:10px;letter-spacing:1.3px}.topright{gap:4px}.topright .pill{font-size:13px;padding:8px 10px}.topright .quiet{font-size:12px;padding:9px 5px}.hero{border-radius:25px;min-height:415px;background-size:auto 112%;background-position:65% 10%}.hero:before{background:linear-gradient(90deg,#daf3e9ee 0%,#daf3e978 44%,#daf3e900 70%)}.hero-content{max-width:85%;padding:27px 23px}.hero h1{font-size:32px;max-width:240px;margin:19px 0 11px}.hero p{font-size:14px;max-width:205px;line-height:1.65}.hero .primary{margin-top:105px;min-height:52px;font-size:17px;padding:12px 23px}.hero .small-note{font-size:12px;margin-top:14px}.hero-tag{font-size:12px;padding:6px 10px}.homegrid{display:flex;flex-direction:column;margin-top:24px;gap:20px}.lesson-grid{gap:13px}.lesson{min-height:173px;padding:18px 15px}.section-head h2{font-size:21px}.section-head span{font-size:12px}.side-area{display:grid;grid-template-columns:1fr 1fr;gap:13px}.sidecard{margin:0;padding:18px}.sidecard:last-child{grid-column:1/-1}.sidecard h3{font-size:16px}.review .secondary{padding:10px;font-size:14px}.footer{font-size:11px}.login-layout{display:block;padding:0 23px 38px;min-height:initial}.login-art{min-height:235px;background-size:cover;background-position:center 45%;border-radius:25px;padding:24px;margin-bottom:30px}.login-art h1{font-size:30px;max-width:180px;margin-top:10px}.login-art p{font-size:13px;max-width:145px;margin-top:10px}.login-panel h2{font-size:29px}.login-panel .eyebrow{margin-bottom:12px}.login-panel>p{margin-bottom:22px;font-size:14px}.login-note{font-size:12px}.game-wrap{padding:17px 16px 35px}.game-head{gap:13px}.game-head span{font-size:12px}.game-head .iconbtn{width:43px;height:43px}.game-meta{margin:21px 0 13px;font-size:12px}.activity{padding:23px 18px;border-radius:25px;min-height:440px}.activity h1{font-size:25px;margin-top:16px}.hint{font-size:13px}.word-card{padding:20px 10px;margin:20px auto}.word-art{font-size:70px;margin-bottom:15px}.word-text{font-size:29px}.word-zh{font-size:14px}.listen-buttons{gap:9px}.listen-buttons .primary,.listen-buttons .secondary{font-size:15px;padding:12px 16px}.game-bottom{align-items:stretch;flex-direction:column;gap:17px;text-align:center;margin-top:22px}.game-bottom .primary{width:100%}.game-bottom p{font-size:13px}.choices{gap:11px}.choice{min-height:133px;padding:15px 8px}.choice .emoji{font-size:43px}.choice .choice-zh{font-size:13px}.feedback{font-size:14px}.complete{margin:20px 0;padding:29px 22px;border-radius:25px}.complete h1{font-size:29px}.complete-stats{gap:25px}.complete-stats b{font-size:22px}.album-head h1{font-size:28px}.album-grid{grid-template-columns:repeat(2,1fr);gap:13px}.sticker{padding:24px 10px}.sticker h3{font-size:16px}.sticker .emoji{font-size:50px}.report-title{align-items:flex-start}.report-title h1{font-size:25px}.report-title .subtle{font-size:13px}.report-title .secondary{padding:10px 12px;white-space:nowrap;font-size:13px}.report-grid{grid-template-columns:repeat(2,1fr);gap:12px}.metric{padding:20px}.metric b{font-size:29px}.report-columns{display:block}.report-block{padding:20px;margin-top:17px}.week{gap:5px}.day b{font-size:14px}.day{font-size:11px}.report-row{font-size:13px}.report-block h2{font-size:19px}.learning-note{font-size:13px}.topright .album-button{display:none}}@media(max-width:370px){.brand b{font-size:15px}.brand small{font-size:9px}.wrap{padding:0 13px}.hero h1{font-size:29px}.topright .pill{font-size:12px}.hero-content{padding:24px 20px}.lesson h3{font-size:15px}.word-text{font-size:25px}.side-area{display:block}.sidecard{margin-bottom:15px}}