:root{font-family:Microsoft YaHei,PingFang SC,Noto Sans SC,sans-serif;color:#293c32;background:#f8f9f5;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--green: #285840;--deep: #214b38;--muted: #80877c;--border: #e8eae1;--cream: #f3f1e6;--gold: #a98b4a;--serif: Georgia, "Times New Roman", serif}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{cursor:pointer;border:0;background:none;color:inherit}button:disabled{cursor:default;opacity:.5}button,a,input,select{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #477b60}button{transition:background .18s,transform .18s,color .18s}a{color:var(--green);text-underline-offset:4px}h1,h2,h3,h4,p{margin:0}button svg{flex-shrink:0}button:hover:not(:disabled){filter:brightness(.97)}button:active:not(:disabled){transform:translateY(1px)}.app-shell{min-height:100vh}.sidebar{position:fixed;top:0;bottom:0;left:0;width:236px;background:#f0f2e9;border-right:1px solid #e2e6da;padding:35px 23px 0;display:flex;flex-direction:column;z-index:10}.brand{display:flex;text-align:left;align-items:center;gap:11px;padding:0;margin-bottom:54px}.brand-mark{height:44px;width:42px;display:grid;place-items:center;color:#fbfbef;background:var(--deep);border-radius:14px 14px 14px 3px}.brand strong{display:flex;gap:8px;align-items:baseline;font-size:25px;letter-spacing:2px;font-weight:600}.brand strong span{font-family:var(--serif);font-size:15px;font-weight:500;letter-spacing:-.4px}.brand small{font-size:10px;letter-spacing:1.4px;color:#7b8573;display:block;margin-top:6px}.nav-caption{font-size:10px;letter-spacing:1.6px;color:#8b9381;margin:0 14px 17px}.nav-item{display:flex;align-items:center;gap:13px;width:100%;padding:15px 16px;text-align:left;border-radius:9px;color:#717c6c;font-size:13px;position:relative;margin-bottom:7px}.nav-item svg{stroke-width:1.7}.nav-item.active{color:var(--deep);background:#dfe7d5;font-weight:600}.nav-item.active:before{content:"";position:absolute;left:-23px;width:3px;height:22px;background:var(--green);border-radius:0 2px 2px 0}.nav-item:hover{background:#e5eade}.nav-item small{margin-left:auto;font-size:10px;background:#cad8c3;border-radius:6px;padding:3px 6px}.sidebar-bottom{margin-top:auto;padding-top:40px}.sidebar-note{background:#e9eddf;border:1px solid #e0e5d4;border-radius:12px;padding:20px;margin:0 5px 32px;position:relative;overflow:hidden}.sidebar-note:after{content:"";position:absolute;width:70px;height:100px;border:1px solid #d4ddc5;border-radius:100% 0;transform:rotate(25deg);bottom:-30px;right:-20px}.little-leaf{color:#719064;display:block;margin-bottom:13px}.sidebar-note p{font-size:14px;line-height:1.9;color:#607452;letter-spacing:1px}.sidebar-note>span:last-of-type{font-family:var(--serif);font-style:italic;font-size:11px;display:block;margin-top:14px;color:#8e997f}.profile{display:flex;align-items:center;gap:10px;margin:18px -23px 0;border-top:1px solid #e1e6d7;padding:22px;background:#edf0e5}.avatar{display:grid;place-items:center;width:33px;height:33px;flex-shrink:0;background:#d7dfc6;border-radius:50%;font-size:14px;color:#5f7454}.profile b{font-size:11px;font-weight:500}.profile small{font-size:9px;display:block;color:#8b9381;margin-top:5px}.online-dot{height:6px;width:6px;background:#6d916b;border-radius:50%;margin-left:auto}.main{margin-left:236px;padding:0 40px 30px;max-width:1680px}.topbar{height:85px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:10px}.breadcrumb{display:flex;align-items:center;gap:12px;font-size:11px;color:#90988a}.breadcrumb span{color:#57644f}.topbar-right{display:flex;align-items:center;gap:22px;font-size:11px}.date{display:flex;gap:8px;color:#899181;align-items:center}.streak-pill{display:flex;align-items:center;gap:6px;color:#897849;font-size:10px;background:#f0eddd;border-radius:20px;padding:7px 11px}.streak-pill svg{stroke-width:1.6}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:7px;color:#8a9381;flex-shrink:0}.icon-btn:hover{background:#edf0e7;color:var(--green)}.greeting{display:flex;justify-content:space-between;align-items:center;margin:31px 0 25px}.eyebrow{font-size:9px;letter-spacing:2px;font-weight:500;color:#8c947e;display:inline-block}.greeting h1,.section-heading h1{font-size:26px;letter-spacing:1.2px;line-height:1.6;font-weight:500;margin-top:7px}.title-dot{color:#9aab7b}.greeting p,.section-heading p{font-size:11px;color:#8b9182;margin-top:9px;line-height:1.9}.greeting-flower{color:#a5b394;transform:rotate(-12deg);padding-right:14px}.hero{border:1px solid #e2e7d7;background:#eef2e5;border-radius:14px;min-height:290px;display:grid;grid-template-columns:1.18fr 1fr;overflow:hidden;position:relative}.hero:after{content:"";position:absolute;width:220px;height:220px;border:1px solid #dde5cf;border-radius:50%;right:-125px;top:-120px;pointer-events:none}.hero-copy{padding:30px 0 31px 33px;position:relative;z-index:1}.label{display:flex;align-items:center;gap:7px;font-size:10px;color:#758264;letter-spacing:.4px}.label>span{width:5px;height:5px;background:#78925d;border-radius:50%}.hero h2{font-size:30px;letter-spacing:1px;line-height:1.55;margin:15px 0 11px;font-weight:500;color:#344b36}.hero h2 em{font-family:var(--serif);font-weight:400;font-style:italic;color:#34613f;font-size:39px;margin:0 4px}.hero p{font-size:11px;line-height:1.95;color:#819071}.hero-actions{display:flex;gap:15px;align-items:center;margin-top:23px;flex-wrap:wrap}.primary{display:inline-flex;align-items:center;justify-content:center;gap:18px;background:var(--green);color:#fffef3;border-radius:7px;min-height:43px;padding:12px 20px;font-size:12px;letter-spacing:.5px;box-shadow:0 3px 6px #214b3810}.primary:hover:not(:disabled){background:#1c4832;box-shadow:0 4px 12px #214b3820}.hero-actions>span{display:flex;align-items:center;gap:5px;font-size:9px;color:#8a947c}.hero-art{display:flex;align-items:center;flex-direction:column;justify-content:center;position:relative}.botanical{width:100%;max-width:390px;margin-top:-8px}.art-caption{position:absolute;bottom:30px;font-family:var(--serif);font-style:italic;font-size:13px;letter-spacing:1px;color:#8c997c;transform:rotate(-5deg)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0 25px}.stat-card{min-height:99px;border:1px solid var(--border);border-radius:10px;background:#fffefa;display:flex;gap:12px;padding:20px 17px;align-items:center;position:relative}.stat-icon{display:grid;place-items:center;flex-shrink:0;width:36px;height:36px;border-radius:10px}.green{background:#edf1e6;color:#789166}.gold{background:#f5efe1;color:#b0975e}.clay{background:#f6ede4;color:#c29673}.sage{background:#eaf0e9;color:#739588}.stat-card>div>span{font-size:10px;color:#848b7c}.stat-card p{margin-top:9px;display:flex;align-items:baseline;gap:5px;white-space:nowrap}.stat-card p b{font-family:var(--serif);font-size:27px;font-weight:400;color:#364832;line-height:1}.stat-card p small{font-size:9px;color:#9b9f93}.mini-indicator{position:absolute;right:13px;top:15px;font-size:8px;background:#f1f4e9;color:#91a17a;border-radius:4px;padding:3px 5px}.stat-card>.icon-btn{margin-left:auto;width:20px;color:#b4bdaa}.stat-decor{margin-left:auto;color:#c3b493;font-size:21px}.tiny-ring{width:37px;height:37px;margin-left:auto;border-radius:50%;display:grid;place-items:center;flex-shrink:0}.tiny-ring>span{background:#fffefa;width:31px;height:31px;display:grid;place-items:center;border-radius:50%;font-size:8px;color:#829071}.dashboard-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:22px}.panel{background:#fffefa;border:1px solid var(--border);border-radius:12px;padding:23px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.panel-heading h3{font-size:14px;font-weight:500;letter-spacing:.6px;display:flex;align-items:center;gap:10px}.panel-heading p{font-size:10px;color:#929788;margin-top:8px;line-height:1.8}.small-tag{font-family:var(--serif);font-size:8px!important;color:#9da68d;letter-spacing:.8px;font-weight:400}.text-btn{font-size:10px;display:inline-flex;align-items:center;gap:5px;color:#78916b;padding:4px 0;white-space:nowrap}.text-btn:hover{color:#214b38}.task-row{display:flex;align-items:center;gap:15px;width:100%;text-align:left;padding:19px 0;border-bottom:1px solid #eef0e7}.task-row:hover{background:#f7f8f0}.task-number{font-family:var(--serif);font-size:11px;color:#b7bea9}.task-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:10px;background:#eef2e7;color:#839675;flex-shrink:0}.task-icon svg{stroke-width:1.6}.task-row b{font-size:12px;font-weight:500;letter-spacing:.3px}.task-row p{font-size:9px;margin-top:7px;color:#969d8a}.task-count{font-family:var(--serif);font-size:21px;color:#6e805d;margin-left:auto;white-space:nowrap}.task-count small{font:9px Microsoft YaHei,sans-serif;color:#a0a591}.task-row>svg{color:#a9b298}.task-label{margin-left:auto;font-size:9px;background:#f5f0e4;color:#ab935d;padding:5px 8px;border-radius:4px;white-space:nowrap}.gentle-note{display:flex;align-items:center;gap:7px;font-size:9px;color:#9aa58c;padding-top:18px}.goal-panel{background:#f0f2e8;border:1px solid #e3e8d9;border-radius:12px;padding:23px 25px;position:relative;overflow:hidden}.goal-panel:after{content:"";position:absolute;right:-23px;bottom:25px;width:110px;height:130px;border:1px solid #dce4d0;border-radius:100% 0;transform:rotate(25deg);pointer-events:none}.goal-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}.goal-heading>span:first-child{font-size:12px;display:flex;gap:8px;align-items:center;color:#718462}.goal-score{font-family:var(--serif);font-size:68px;line-height:1;margin-top:23px;color:#476444;display:flex;align-items:baseline;gap:3px}.goal-score>span{font-size:35px;align-self:flex-start;margin-top:8px}.goal-score small{font-family:Microsoft YaHei,sans-serif;font-size:10px;letter-spacing:1px;color:#99a488;margin-left:auto}.goal-panel>p{font-size:10px;color:#95a083;margin-top:9px}.goal-divider{height:1px;background:#dfe5d4;margin:22px 0 18px}.goal-progress{display:flex;justify-content:space-between;font-size:10px;color:#849478;margin-bottom:10px}.goal-progress b{font-family:var(--serif);font-size:13px;font-weight:400}.progress-track{height:5px;background:#e0e7d6;border-radius:5px;overflow:hidden}.progress-track i{display:block;height:100%;background:#769467;border-radius:5px;transition:width .5s}.goal-sub{display:flex;justify-content:space-between;font-size:8px;color:#a1ac92;margin-top:8px}.goal-quote{margin-top:23px;font-size:12px;line-height:1.9;letter-spacing:1px;color:#8d9b7f}.goal-footnote{font-size:8px;color:#a7b198;margin-top:13px;display:block}.moment-panel .panel-heading{margin-bottom:17px}.moment-title{display:flex;align-items:center;gap:10px}.moment-title h2{font-family:var(--serif);font-size:32px;font-weight:400;letter-spacing:-.6px}.audio-btn{width:31px;height:31px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:#eff3e7;color:#7f936d;flex-shrink:0}.audio-btn:hover{background:#e2e9d7}.word-tier{font-size:8px;padding:5px 8px;color:#879b73;background:#f0f4e8;border:1px solid #e8eddc;border-radius:5px;display:inline-block;white-space:nowrap}.moment-title .word-tier{margin-left:auto}.phonetic{display:block;font-family:var(--serif);font-size:12px;color:#979f8b;margin-top:7px}.moment-meaning{font-size:12px;line-height:1.9;color:#65715b;margin-top:15px}.moment-meaning span{color:#a0a590;font-family:var(--serif);font-style:italic;font-size:12px;margin-right:10px}.moment-example{font-family:var(--serif);font-style:italic;font-size:13px;line-height:1.8;color:#909a82;padding:14px 0}.moment-bottom{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #edf0e6;padding-top:12px;gap:10px}.moment-bottom>span{font-size:8px;color:#a1ab91;display:flex;align-items:center;gap:4px}.muted{color:#919987;font-size:10px;line-height:1.9}.activity-summary{display:flex;align-items:baseline;gap:12px;margin:24px 0}.activity-summary>b{font-family:var(--serif);font-size:32px;font-weight:400;color:#617856}.activity-summary small{font-family:Microsoft YaHei,sans-serif;font-size:9px;color:#a0aa91}.activity-summary>span{font-size:9px;color:#a0a892}.heatmap{display:grid;grid-template-rows:repeat(7,1fr);grid-template-columns:repeat(12,1fr);grid-auto-flow:column;gap:5px}.heatmap>span{height:13px;border-radius:2px;background:#edf0e6}.heat-1{background:#c0d2a7!important}.heat-2{background:#8eac71!important}.heat-3{background:#527b4d!important}.heatmap-footer{margin-top:15px;display:flex;align-items:center;justify-content:space-between;font-size:8px;color:#a4ad95}.heatmap-footer>div{display:flex;gap:4px;align-items:center}.heatmap-footer i{width:9px;height:9px;background:#edf0e6;border-radius:2px}.page-footer{display:flex;justify-content:space-between;margin-top:23px;color:#a4ad98;font-size:8px;letter-spacing:.5px}.page-footer>span:first-child{display:flex;gap:5px;align-items:center}.page-footer>span:last-child{font-family:var(--serif);letter-spacing:1px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:34px 0 28px}.section-heading h1{font-size:25px}.study-page{max-width:900px;margin:auto}.session-meta{display:flex;justify-content:space-between;font-size:11px;color:#87977b;margin:3px 5px 13px}.session-meta>span:first-child{display:flex;gap:7px;align-items:center}.live-dot{width:6px;height:6px;border-radius:50%;background:#749666}.session-track{margin-bottom:21px;height:4px}.study-card{background:#fffefa;border:1px solid #e3e8db;border-radius:16px;padding:27px 38px;box-shadow:0 8px 40px #3d583208;animation:arrive .35s ease both}.study-card-top{display:flex;justify-content:space-between;align-items:center}.study-word{text-align:center;padding:38px 0 30px}.study-word>.eyebrow{font-size:10px;letter-spacing:1px}.study-word h2{font:normal 70px var(--serif);letter-spacing:-2px;margin:20px 0;color:#2a4934;overflow-wrap:anywhere}.pronunciation{display:flex;align-items:center;justify-content:center;gap:15px;font-family:var(--serif);font-size:18px;color:#8a9880}.reveal-cta{text-align:center;padding:12px 0 34px}.reveal-cta p{font-size:12px;color:#939c88;margin:20px 0}.reveal-cta .primary{min-width:205px}.key-hint,kbd{font-size:9px;color:#c6d3bc;background:#ffffff15;border:1px solid #ffffff20;padding:3px 6px;border-radius:4px;letter-spacing:0}.study-hint{display:flex;justify-content:center;align-items:center;gap:7px;font-size:10px;color:#9ba78d;margin:23px 0;line-height:1.8}.is-favorite{color:#b39451}.word-content{font-size:13px;line-height:1.9}.meaning-line{display:flex;align-items:baseline;gap:12px;padding:18px 0 24px;border-top:1px solid #edf0e6}.meaning-line h3{font-size:16px;font-weight:500}.pos{font:italic 14px var(--serif);color:#9ba38c;flex-shrink:0}.insight{display:flex;align-items:flex-start;gap:11px;background:#f1f4e9;padding:17px;border-radius:8px;color:#6b8258;margin-bottom:24px}.insight svg{margin-top:4px;flex-shrink:0}.insight b{font-size:11px;font-weight:500}.insight p{font-size:12px;margin-top:5px;line-height:1.9}.example{border-left:2px solid #b9c9a4;padding:3px 0 3px 17px;margin-bottom:23px}.example .eyebrow{font-size:9px;letter-spacing:.5px}.english-example{font-family:var(--serif);font-size:19px;color:#56664b;line-height:1.7;margin:9px 0}.english-example>.icon-btn{display:inline-flex;vertical-align:middle;margin-left:5px}.example>p:last-child{font-size:11px;color:#8c967e}.phrase-list{margin:20px 0}.phrase-list p{display:flex;align-items:baseline;gap:16px;margin:6px 0;font-size:11px;color:#909980}.phrase-list b{font-family:var(--serif);font-size:15px;font-weight:400;color:#67765b;min-width:150px}.phrase-list .eyebrow,.distinction .eyebrow,.synonyms .eyebrow{font-size:9px;letter-spacing:.5px}.distinction p{font-size:12px;color:#8b957e;margin:7px 0 20px}.synonyms>div{display:flex;gap:7px;flex-wrap:wrap;margin:7px 0}.synonyms>div>span{font-family:var(--serif);font-size:13px;background:#f1f3eb;color:#819170;border-radius:5px;padding:2px 9px}.source-note{font-size:8px!important;color:#a6af9b;margin-top:22px!important}.grade-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:27px 0 5px}.grade-actions button{display:flex;align-items:center;justify-content:center;gap:15px;border:1px solid #eadfd5;background:#f9f2eb;color:#b68b6c;border-radius:7px;padding:14px 10px;font-size:12px}.grade-actions button:nth-child(2){background:#f5f1e4;color:#a18d59;border-color:#e9e2cd}.grade-actions button:last-child{background:var(--green);color:#fffef2;border-color:var(--green)}.grade-actions kbd{color:inherit;border-color:currentColor;opacity:.6}.study-word .prompt-heading{font-family:Microsoft YaHei,sans-serif;font-size:22px;letter-spacing:.5px;line-height:1.8}.context-prompt{font-family:var(--serif);font-size:23px;color:#687a57;line-height:1.8;margin:20px 0}.answer-form{display:flex;justify-content:center;gap:10px;margin-top:30px}.answer-form input{min-width:0;width:290px;border:1px solid #dce4d1;border-radius:7px;background:#f7f9f2;padding:12px 15px;font-family:var(--serif);font-size:19px;color:#3b5934}.skip-answer{margin-top:15px}.answer-feedback{display:flex;align-items:center;justify-content:center;gap:7px;background:#faf0e5;color:#a88863;font-size:12px;border-radius:6px;padding:12px;margin-bottom:22px}.answer-feedback.correct{background:#edf3e6;color:#76915f}.completion{text-align:center;margin-top:30px;padding:60px 25px}.completion-icon{background:#e8f0df;display:grid;place-items:center;color:#6a925b;width:90px;height:90px;border-radius:50%;margin:0 auto 28px}.completion>.eyebrow{display:block}.completion h2{font-size:25px;font-weight:500;margin:17px 0}.completion>p{font-size:12px;color:#909b81}.completion-stats{display:flex;justify-content:center;gap:60px;margin:35px 0}.completion-stats>div{display:flex;flex-direction:column;gap:10px}.completion-stats b{font:32px var(--serif);color:#57764b}.completion-stats span{font-size:10px;color:#919d82}.completion>.text-btn{display:flex;margin:17px auto 0}.empty-state{text-align:center;padding:65px 20px;color:#8a9c7a}.empty-state>svg{margin-bottom:18px}.empty-state h2{font-size:19px;font-weight:500;color:#687d56}.empty-state p{font-size:12px;margin:12px 0 23px;color:#9aa58d}.review-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:24px}.review-summary>div{padding:28px;background:#f1f4e9;border:1px solid #e1e8d7;border-radius:12px;display:flex;align-items:center;gap:15px;color:#849b72}.review-summary b{font:34px var(--serif);color:#476a3c}.review-summary span{font-size:11px;color:#879a78;margin-left:auto}.review-page>.panel{margin-bottom:22px}.review-start{padding:28px}.review-start h3{font-size:17px;font-weight:500}.review-start p{font-size:11px;color:#949f87;margin-top:10px;line-height:1.8}.mode-options{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:25px 0}.mode-options>button{display:flex;flex-direction:column;align-items:flex-start;gap:14px;border:1px solid #e3e8da;border-radius:10px;padding:23px;background:#fcfcf7;color:#93a581;position:relative;text-align:left}.mode-options>button.selected{border-color:#8ea87a;background:#f0f5e8}.mode-options b{font-weight:500;font-size:14px;color:#647d52}.mode-options span{font-size:10px;line-height:1.7;color:#99a58c}.mode-check{position:absolute;right:16px;top:20px}.review-empty-note{display:inline-block;margin-left:20px}.week-chart{display:flex;justify-content:space-around;align-items:end;height:155px;gap:15px}.week-chart>div{width:11%;display:flex;align-items:center;flex-direction:column;gap:10px}.week-chart span{font-size:10px;color:#91a281}.week-chart i{width:100%;background:#afc39a;border-radius:5px 5px 0 0;min-height:4px;max-width:55px}.week-chart b{font-weight:400;font-size:10px;color:#9ca98e}.weak-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 30px}.weak-list>button{display:flex;gap:13px;align-items:center;text-align:left;border-bottom:1px solid #edf0e5;padding:12px 0;font-family:var(--serif);font-size:19px}.weak-list span{font-family:Microsoft YaHei,sans-serif;font-size:10px;color:#99a88a;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.weak-list svg{color:#a6b298}.secondary{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 17px;border:1px solid #dfe6d5;border-radius:7px;font-size:11px;color:#7b9368;background:#f5f7ef;white-space:nowrap}.secondary:hover{background:#eaf0e0}.library-tools{display:flex;gap:14px;margin-bottom:22px}.search-box{display:flex;gap:12px;align-items:center;padding:0 16px;background:#fffefa;border:1px solid #e3e8da;border-radius:8px;flex:1;color:#9ca98e}.search-box input{width:100%;border:0;background:none;padding:14px 0;outline:none;color:#5c7550;font-size:12px}.search-box input::placeholder{color:#abb49f}.search-box:focus-within{border-color:#87a272}.library-tools select{border:1px solid #e3e8da;background:#fffefa;color:#879974;border-radius:8px;font-size:12px;padding:0 16px;min-width:125px}.tier-tabs{display:flex;align-items:center;gap:9px;border-bottom:1px solid #e2e8d7;padding-bottom:14px;flex-wrap:wrap}.tier-tabs button{padding:9px 15px;font-size:11px;border-radius:7px;color:#8d9d7c}.tier-tabs button span{margin-left:7px;font-size:9px;color:#a3b093}.tier-tabs button.active{background:#e3ecd9;color:#4b7040}.library-count{display:flex;justify-content:space-between;font-size:10px;color:#8c9d7a;margin:22px 0 16px}.library-count>span{color:#abb69e}.word-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.word-tile{background:#fffefa;border:1px solid #e3e8da;border-radius:10px;padding:17px 20px;transition:border .2s,box-shadow .2s;min-width:0}.word-tile:hover{border-color:#b9cba7;box-shadow:0 4px 15px #3b592707}.word-tile>div{display:flex;justify-content:space-between;align-items:center}.tier-拓展{color:#ad945e;background:#f5f0e4;border-color:#efe6d0}.tier-自定义{color:#8a90a0;background:#f0f1f5;border-color:#e5e7ed}.tile-content{display:block;text-align:left;width:100%;padding:0}.tile-content h3{font:25px var(--serif);color:#405b35;margin-top:12px;overflow-wrap:anywhere}.tile-content .phonetic{font-size:11px;margin-top:6px}.tile-content p{font-size:11px;color:#8d9c7c;line-height:1.9;margin-top:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;height:42px}.tile-bottom{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #edf0e5;padding-top:12px;margin-top:14px;font-size:9px;color:#a1b090;gap:5px}.tile-bottom>span{display:flex;align-items:center;gap:3px;margin-left:auto;font-size:8px}.tile-bottom>svg{margin-left:auto}.load-more{display:flex;margin:27px auto}.settings-page{max-width:960px;margin:auto}.settings-page>.panel{margin-bottom:22px;padding:27px}.settings-page .panel-heading h3{font-size:15px}.settings-page .panel-heading svg{color:#91a17e;flex-shrink:0}.settings-page .panel-heading p{font-size:11px}.daily-setting{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:#7d926b;padding:15px 0}.daily-setting>div{display:flex;align-items:center;gap:12px;color:#99a68a;font-size:11px}.daily-setting input{width:90px;border:1px solid #dce6d0;padding:12px;border-radius:7px;background:#f8faf3;color:#658254;font-family:var(--serif);font-size:22px}.settings-plan>.primary{margin-top:23px}.data-actions{display:flex;gap:13px;margin:25px 0 15px}.file-input{display:none}.import-example{white-space:pre-wrap;word-break:break-all;border:1px solid #e5eadc;background:#f4f7ec;padding:16px;font-size:11px;line-height:1.9;border-radius:7px;color:#80956c;margin-bottom:22px}.settings-page .panel>.muted{margin-top:15px}.import-report{background:#f7f4e9;border:1px solid #eae3cc;border-radius:8px;padding:17px;margin-top:20px;max-height:260px;overflow:auto}.import-report h4{font-size:12px;color:#9c885a;margin-bottom:9px}.import-report p{font-size:11px;line-height:1.9;color:#a2926c}.source-stats{display:flex;gap:12px;margin-bottom:20px}.source-stats span{font-size:11px;border:1px solid #e2e8d6;background:#f3f6ec;border-radius:6px;padding:8px 12px;color:#8a9c77}.source-panel>p{font-size:11px;line-height:2;color:#9aa68c;margin-bottom:10px}.source-panel h4{font-size:12px;font-weight:500;color:#778d62;margin:23px 0 13px}.source-panel a{font-size:11px;color:#7b9366;display:inline-flex;align-items:center;gap:4px}.word-dialog{border:1px solid #dce5d0;border-radius:16px;background:#fffefa;color:inherit;padding:27px 32px;width:min(640px,calc(100vw - 30px));max-height:85vh;box-shadow:0 24px 100px #173d3125}.word-dialog::backdrop{background:#253b2b45;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.dialog-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.dialog-heading>div{display:flex;gap:7px}.dialog-word{display:flex;align-items:center;gap:17px}.dialog-word h2{font:43px var(--serif);color:#405b35;overflow-wrap:anywhere}.word-dialog .word-content{margin-top:24px}.word-dialog .meaning-line h3{font-size:15px}.word-dialog .source-note{font-size:9px}.toast{position:fixed;left:calc(50% + 118px);bottom:28px;transform:translate(-50%);display:flex;align-items:center;gap:10px;padding:12px 14px 12px 18px;background:#2c503b;color:#f2f5e9;font-size:12px;border-radius:10px;box-shadow:0 8px 35px #214b3830;z-index:100;max-width:calc(100vw - 35px);line-height:1.7}.toast>.icon-btn{color:#c6d6b8}.loading{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;color:#6e8e5a;background:#f1f4e8}.loading h1{font:30px var(--serif);font-weight:400}.loading p{font-size:12px;color:#94a183}.mobile-nav{display:none}@keyframes arrive{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.home-page,.library-page,.review-page,.settings-page{animation:arrive .45s ease both}@media(min-width:1500px){.main{padding-left:50px;padding-right:50px}.hero{min-height:330px}.hero-copy{padding:39px 0 39px 40px}.hero h2{font-size:36px}.botanical{max-width:420px}.stat-card{padding:23px}.dashboard-grid{grid-template-columns:1.6fr 1fr}.panel{padding:27px}.task-row{padding:22px 0}.goal-panel{padding:27px 30px}.goal-score{font-size:76px}.heatmap>span{height:16px}}@media(max-width:1200px){.sidebar{width:210px;padding-left:18px;padding-right:18px}.brand strong{font-size:23px}.brand strong span{font-size:13px}.brand{gap:8px}.main{margin-left:210px;padding:0 28px 28px}.nav-item.active:before{left:-18px}.profile{margin-left:-18px;margin-right:-18px;padding:20px 18px}.hero h2{font-size:26px}.hero-actions>span{font-size:8px}.stat-card{gap:9px;padding:18px 11px}.stat-card p b{font-size:25px}.stat-icon{width:31px;height:31px}.tiny-ring{width:32px;height:32px}.tiny-ring>span{width:27px;height:27px}.stat-decor{display:none}.mini-indicator{top:10px;right:9px;font-size:7px}.dashboard-grid{grid-template-columns:1.5fr 1fr;gap:17px}.panel{padding:20px}.task-row{gap:10px}.task-row p,.goal-score small{font-size:8px}.moment-bottom>span{font-size:7px}.toast{left:calc(50% + 105px)}}@media(max-width:1000px){.sidebar{width:185px;padding:29px 14px 0}.main{margin-left:185px;padding:0 24px 26px}.brand strong span{display:none}.brand{margin-bottom:44px}.nav-item{padding:14px 12px;font-size:12px;gap:9px}.nav-item.active:before{left:-14px}.sidebar-note{padding:17px 14px;margin-left:0;margin-right:0}.sidebar-note>span:last-of-type{font-size:9px}.profile{margin-left:-14px;margin-right:-14px;padding:18px 14px}.profile small{font-size:8px}.greeting h1{font-size:22px}.hero-copy{padding:27px 0 27px 25px}.hero h2{font-size:24px}.hero h2 em{font-size:32px}.hero-actions>span{display:none}.hero-art .art-caption{font-size:10px}.stats-grid{grid-template-columns:repeat(2,1fr);gap:12px;margin:18px 0}.stat-card{min-height:86px;padding:16px}.stat-card p b{font-size:27px}.stat-decor{display:block}.tiny-ring{width:37px;height:37px}.tiny-ring>span{width:31px;height:31px}.dashboard-grid{grid-template-columns:1.3fr 1fr}.panel-heading h3{font-size:12px}.panel-heading h3 .small-tag{font-size:7px!important}.panel-heading .text-btn{font-size:8px}.task-row{gap:8px}.task-number{display:none}.task-icon{width:29px;height:32px}.task-row p{max-width:150px;line-height:1.7}.task-row .task-count{font-size:19px}.task-label{font-size:7px;padding:5px}.goal-panel{padding:20px}.goal-score{font-size:61px}.goal-score small{display:none}.moment-title h2{font-size:30px}.moment-example{font-size:12px}.moment-bottom{flex-wrap:wrap}.activity-summary{flex-wrap:wrap;gap:8px}.activity-summary>span{font-size:8px}.heatmap{gap:4px}.heatmap>span{height:11px}.heatmap-footer>span{font-size:7px}.heatmap-footer{gap:10px}.word-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.section-heading h1{font-size:23px}.review-summary{gap:12px}.review-summary>div{padding:20px;flex-wrap:wrap;gap:10px}.review-summary span{width:100%;margin-left:0}.mode-options{gap:12px}.mode-options>button{padding:20px 15px}.review-empty-note{margin-left:0;display:block}.toast{left:calc(50% + 92px)}}@media(max-width:760px){.sidebar{display:none}.main{margin-left:0;padding:0 22px 95px}.topbar{height:65px}.topbar-right{gap:10px}.date{font-size:9px}.breadcrumb{font-size:10px;gap:7px}.streak-pill{font-size:9px;padding:5px 8px}.topbar-right>.icon-btn{width:26px}.greeting{margin:25px 0 20px}.greeting h1{font-size:24px}.greeting p{font-size:10px}.greeting-flower{display:none}.hero{grid-template-columns:1.1fr 1fr;min-height:265px}.hero-copy{padding:25px 0 25px 25px}.hero h2{font-size:25px}.hero-art .art-caption{bottom:28px}.hero h2 em{font-size:35px}.stats-grid{gap:12px;margin:17px 0 20px}.stat-card{padding:17px}.dashboard-grid{gap:17px}.panel-heading h3{font-size:13px}.task-number{display:block}.goal-panel{padding:23px}.goal-score{font-size:69px}.goal-score small{display:block;font-size:8px}.goal-quote{font-size:11px}.task-row{gap:10px}.task-icon{width:33px}.task-row p{max-width:none}.task-row b{font-size:12px}.task-label{font-size:8px}.panel-heading .text-btn{font-size:9px}.page-footer>span:last-child{font-size:7px}.mobile-nav{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:space-around;align-items:center;padding:8px 10px max(10px,env(safe-area-inset-bottom));background:#f6f8efee;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border-top:1px solid #e3e8d8;z-index:20}.mobile-nav>button{display:flex;align-items:center;flex-direction:column;gap:6px;padding:7px 15px;color:#a0ad8f;border-radius:8px;font-size:9px}.mobile-nav>button.active{color:#436d36;background:#e9efdd}.toast{left:50%;bottom:85px;width:max-content;font-size:11px}.section-heading{padding:26px 0}.section-heading h1{font-size:23px}.study-card{padding:22px 27px}.study-word h2{font-size:60px}.study-hint{font-size:9px}.word-dialog{padding:23px}.review-summary>div{padding:20px}.settings-page>.panel{padding:23px}.mode-options span{font-size:9px}.grade-actions button{font-size:11px;gap:9px}.review-summary span{font-size:10px}.word-grid{gap:13px}.settings-page .panel-heading p{font-size:10px}}@media(max-width:540px){.main{padding:0 17px 95px}.topbar{height:59px}.topbar-right .date{display:none}.greeting h1{font-size:22px;letter-spacing:.2px;margin-top:8px}.greeting p{line-height:1.9;font-size:10px;max-width:315px;margin-top:7px}.eyebrow{font-size:8px;letter-spacing:1.7px}.hero{min-height:300px;grid-template-columns:1fr;overflow:hidden}.hero-copy{padding:25px 23px 26px}.hero .label{font-size:9px}.hero h2{font-size:25px;line-height:1.5;position:relative;z-index:2;margin-top:16px}.hero h2 em{font-size:34px}.hero p{font-size:10px;position:relative;z-index:2;max-width:170px}.hero-actions{margin-top:22px}.hero .primary{font-size:11px;padding:11px 16px;min-height:40px;gap:18px}.hero-art{position:absolute;width:225px;right:-43px;top:61px;pointer-events:none;opacity:.88}.botanical{margin-top:0}.art-caption{display:none}.stats-grid{gap:9px;margin:15px 0 19px}.stat-card{padding:17px 12px;gap:10px;min-height:86px}.stat-icon{width:31px;height:33px;border-radius:8px}.stat-card>div>span{font-size:9px}.stat-card p{margin-top:8px}.stat-card p b{font-size:27px}.stat-card p small{font-size:8px}.mini-indicator{display:none}.stat-card>.icon-btn{display:none}.stat-decor,.tiny-ring{display:none}.dashboard-grid{grid-template-columns:1fr;gap:17px}.panel{padding:20px}.panel-heading h3{font-size:13px}.panel-heading h3 .small-tag{font-size:7px!important}.panel-heading p{font-size:9px}.panel-heading{margin-bottom:12px}.task-row{gap:11px;padding:18px 0}.task-icon{width:35px;height:35px}.task-row p{font-size:9px;max-width:none}.task-row b{font-size:12px}.task-count{font-size:22px!important}.task-label,.gentle-note{font-size:8px}.goal-panel{grid-row:4;padding:23px}.goal-score{margin-top:22px}.goal-score small{font-size:10px}.goal-quote{font-size:12px}.goal-panel:after{right:10px;bottom:15px}.moment-title h2{font-size:34px}.moment-example{font-size:14px}.moment-bottom>span{font-size:8px}.activity-summary{margin:22px 0;flex-wrap:nowrap;gap:12px}.activity-summary>span{font-size:9px}.heatmap{gap:5px}.heatmap>span{height:14px}.heatmap-footer{margin-top:18px}.heatmap-footer>span{font-size:8px}.page-footer{gap:10px;font-size:8px;line-height:1.7}.page-footer>span:last-child{font-size:6px}.section-heading{align-items:flex-start;padding:26px 0 22px;flex-wrap:wrap;gap:13px}.section-heading h1{font-size:21px;letter-spacing:.3px}.section-heading p{font-size:10px}.section-heading>.secondary{font-size:10px;padding:9px 12px}.session-meta{font-size:10px}.study-card{padding:20px 19px}.study-word{padding:35px 0 27px}.study-word h2{font-size:54px}.study-word>.eyebrow{font-size:9px}.study-word .prompt-heading{font-size:19px;letter-spacing:0}.pronunciation{font-size:16px}.reveal-cta{padding-bottom:25px}.reveal-cta p{font-size:10px;line-height:1.9}.study-hint{align-items:flex-start;font-size:9px;line-height:1.9;padding:0 9px}.study-hint svg{flex-shrink:0;margin-top:3px}.meaning-line{gap:10px;padding:17px 0}.meaning-line h3{font-size:14px}.pos{font-size:12px}.insight{padding:14px;gap:9px;margin-bottom:20px}.insight p{font-size:11px}.english-example{font-size:17px}.example>p:last-child{font-size:10px;line-height:1.9}.phrase-list p{gap:10px;font-size:10px}.phrase-list b{min-width:0;font-size:13px;flex:1}.phrase-list p>span{flex:1}.distinction p{font-size:11px}.grade-actions{gap:7px}.grade-actions button{font-size:10px;gap:5px;padding:13px 5px}.grade-actions kbd{display:none}.answer-form{flex-direction:column;gap:12px}.answer-form input{width:100%;text-align:center}.answer-form .primary{width:100%}.context-prompt{font-size:19px}.completion{padding:40px 18px}.completion h2{font-size:21px}.completion-stats{gap:30px}.completion-stats span{font-size:9px}.review-summary{gap:9px}.review-summary>div{padding:17px 13px;gap:10px}.review-summary b{font-size:28px}.review-summary svg{width:20px}.review-summary span{font-size:8px;line-height:1.7}.review-start{padding:20px}.review-start h3{font-size:14px}.review-start p{font-size:10px}.mode-options{grid-template-columns:1fr;gap:10px;margin:22px 0}.mode-options>button{display:grid;grid-template-columns:27px 1fr;align-items:center;gap:6px 15px;padding:16px}.mode-options svg:first-child{grid-row:span 2}.mode-options b{font-size:13px}.mode-options span{font-size:10px}.mode-check{top:24px;right:15px}.review-start>.primary{width:100%}.week-chart{gap:8px}.week-chart span{font-size:9px}.weak-list{grid-template-columns:1fr}.library-tools{gap:9px;margin-bottom:17px}.search-box{padding:0 12px;gap:8px}.search-box input{font-size:11px}.library-tools select{font-size:10px;padding:0 8px;min-width:93px}.tier-tabs{gap:3px;padding-bottom:12px}.tier-tabs button{padding:8px 10px;font-size:10px}.tier-tabs button span{font-size:8px;margin-left:4px}.library-count{font-size:9px;margin:18px 0 13px}.library-count>span{font-size:8px}.word-grid{gap:11px}.word-tile{padding:12px 13px}.tile-content h3{font-size:22px;margin-top:10px}.tile-content .phonetic{font-size:10px;overflow-wrap:anywhere}.tile-content p{font-size:10px;margin-top:12px;height:38px}.word-tile .word-tier{padding:3px 6px;font-size:7px}.word-tile .icon-btn{width:23px;height:25px}.tile-bottom{font-size:8px;flex-wrap:wrap;padding-top:10px;margin-top:12px;gap:4px}.tile-bottom>span{font-size:7px}.tile-bottom>svg{display:none}.settings-page>.panel{padding:20px}.settings-page .panel-heading h3{font-size:14px}.settings-page .panel-heading p{font-size:10px}.data-actions{gap:10px;flex-wrap:wrap}.data-actions .secondary{font-size:10px;padding:11px 13px}.source-panel>p{font-size:10px}.source-panel a{font-size:10px}.source-stats{gap:8px}.source-stats span{font-size:10px;padding:7px 10px}.word-dialog{padding:20px;max-height:85vh}.dialog-word h2{font-size:36px}.dialog-word .audio-btn{margin-left:auto}.word-dialog .meaning-line h3{font-size:14px}.toast{padding:10px 11px 10px 14px;gap:8px}.toast>svg{flex-shrink:0}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}.nav-item,.profile small,.brand small,.sidebar-note>span:last-of-type,.date,.breadcrumb,.eyebrow,.greeting p,.section-heading p,.hero p,.hero-actions>span,.stat-card>div>span,.stat-card p small,.tiny-ring>span,.panel-heading p,.muted,.task-row p,.task-count small,.gentle-note,.goal-panel>p,.goal-progress,.goal-sub,.goal-quote,.goal-footnote,.moment-bottom>span,.activity-summary>span,.activity-summary small,.heatmap-footer,.page-footer,.phonetic,.study-hint,.reveal-cta p,.example>p:last-child,.phrase-list p,.distinction p,.source-note,.review-summary span,.review-start p,.mode-options span,.week-chart span,.week-chart b,.weak-list span,.library-count,.library-count>span,.tile-content p,.tile-bottom,.source-panel>p,.source-panel a,.daily-setting>div,.completion>p,.completion-stats span,.empty-state p{color:#5c6c53}.text-btn,.goal-heading>span:first-child,.word-tier,.insight,.library-tools select,.search-box input::placeholder,.tier-tabs button,.tier-tabs button span,.mode-options>button,.secondary,.review-summary,.source-stats span,.daily-setting,.empty-state{color:#526c43}.moment-example{color:#647758}.moment-meaning{color:#4e6443}.pos,.moment-meaning>span{color:#68795b}.synonyms>div>span{color:#536c43}.task-number,.small-tag{color:#5c6c53}.mini-indicator{color:#536c43}.gold,.task-label,.tier-拓展,.streak-pill{color:#80642c}.icon-btn,.audio-btn{color:#617a50}.art-caption{color:#536747}.nav-caption,.sidebar-note p,.goal-score small,.task-count,.review-summary>div,.mode-options b,.weak-list>button,.synonyms>div>span{color:#536747}.grade-actions button{color:#835930}.grade-actions button:nth-child(2){color:#756027}.grade-actions button:last-child{color:#fffef2}.grade-actions kbd{opacity:1}.answer-feedback{color:#805b32}.answer-feedback.correct{color:#4f6c37}.import-report h4,.import-report p{color:#78602f}.hero .label{color:#5b7249}.source-note,.page-footer{font-size:9px!important}.task-row p,.panel-heading p,.hero p,.stat-card>div>span,.goal-progress,.goal-sub,.goal-footnote{font-size:10px}.tile-content p{font-size:11px}.hero-art{z-index:0}.hero-copy{z-index:1}.daily-setting input,.import-example,.source-panel h4,.session-meta,.pronunciation{color:#536747}@media(max-width:540px){.hero-art{width:173px;right:-42px;top:111px;opacity:.65}.mobile-nav>button{padding:7px 8px;font-size:8px;color:#5c704f}.mobile-nav>button.active{color:#345b2b}.page-footer{flex-wrap:wrap}.task-row p,.goal-footnote{font-size:9px}.sidebar-note>span:last-of-type{font-size:10px}}:root{color-scheme:light}.word-read,.sentence-read{font:inherit;color:inherit;padding:0;text-align:inherit;letter-spacing:inherit;line-height:inherit;border-radius:4px;cursor:pointer}.word-read:hover,.sentence-read:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px;text-decoration-color:#9caf84}.word-read[aria-pressed=true],.sentence-read.is-speaking{color:#356a46}.audio-btn.is-speaking,.icon-btn.is-speaking{background:#dce9cc;color:#325d2d;box-shadow:0 0 0 3px #7a9c6320}.tile-buttons{display:flex;align-items:center;gap:5px;margin-left:auto}.theme-options{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.theme-options>button{display:flex;align-items:center;gap:15px;text-align:left;padding:20px;border:1px solid #e1e6d6;border-radius:9px;background:#f7f9f0;color:#526c43}.theme-options>button.selected{border-color:#85a46b;background:#edf3e2}.theme-options span{flex:1}.theme-options b{font-size:13px;font-weight:500;display:block}.theme-options small{font-size:10px;display:block;margin-top:7px;color:#5c6c53}:root[data-theme=dark]{color-scheme:dark;color:#e0e7d7;background:#151e19;--green: #8eae76;--deep: #a9c28c;--muted: #b1bea5;--border: #3a4b3a;--cream: #263529;--gold: #d2b67a}:root[data-theme=dark] :is(.sidebar,.profile){background:#1c2921;border-color:#354535}:root[data-theme=dark] .main{background:#151e19}:root[data-theme=dark] .breadcrumb>span{color:#c3d6af}:root[data-theme=dark] :is(.panel,.stat-card,.study-card,.word-tile,.word-dialog,.search-box,.library-tools select){background:#202e25;border-color:#3a4b3a;color:#e0e7d7;box-shadow:none}:root[data-theme=dark] :is(.hero,.goal-panel){background:#26372a;border-color:#3e503b}:root[data-theme=dark] :is(.sidebar-note,.review-summary>div,.insight,.import-example,.import-report){background:#2a3b2c;border-color:#3d5137}:root[data-theme=dark] :is(.nav-item.active,.nav-item:hover,.mobile-nav>button.active,.theme-options>button.selected,.mode-options>button.selected){background:#32492f;color:#d7e6c4;border-color:#80996a}:root[data-theme=dark] :is(.nav-item,.nav-caption,.brand small,.profile small,.sidebar-note p,.sidebar-note>span:last-of-type,.date,.breadcrumb,.eyebrow,.greeting p,.section-heading p,.hero p,.hero-actions>span,.stat-card>div>span,.stat-card p small,.tiny-ring>span,.panel-heading p,.muted,.task-row p,.task-count small,.gentle-note,.goal-panel>p,.goal-progress,.goal-sub,.goal-quote,.goal-footnote,.moment-bottom>span,.activity-summary>span,.activity-summary small,.heatmap-footer,.page-footer,.phonetic,.study-hint,.reveal-cta p,.example>p:last-child,.phrase-list p,.distinction p,.source-note,.review-summary span,.review-start p,.mode-options span,.week-chart span,.week-chart b,.weak-list span,.library-count,.library-count>span,.tile-content p,.tile-bottom,.source-panel>p,.source-panel a,.daily-setting>div,.completion>p,.completion-stats span,.empty-state p,.small-tag,.task-number,.goal-score small,.session-meta,.pronunciation,.theme-options small){color:#b3c1a6}:root[data-theme=dark] :is(.text-btn,.goal-heading>span:first-child,.word-tier,.insight,.library-tools select,.tier-tabs button,.tier-tabs button span,.mode-options>button,.secondary,.review-summary,.source-stats span,.daily-setting,.empty-state,.mini-indicator,.task-count,.source-panel h4,.daily-setting input,.import-example,.synonyms>div>span,.moment-meaning>span,.pos,.mode-options b,.weak-list>button){color:#c3d6af}:root[data-theme=dark] :is(.greeting h1,.section-heading h1,.hero h2,.brand strong,.moment-title h2,.study-word h2,.dialog-word h2,.tile-content h3,.stat-card p b,.moment-meaning,.english-example,.phrase-list b,.activity-summary>b,.goal-score,.review-summary b,.completion h2,.completion-stats b,.empty-state h2){color:#e0e8d0}:root[data-theme=dark] :is(.hero h2 em,.moment-example,.hero .label,.art-caption,.icon-btn,.audio-btn,.little-leaf){color:#b9cea1}:root[data-theme=dark] :is(.task-icon,.stat-icon,.word-tier,.synonyms>div>span,.mini-indicator,.secondary,.theme-options>button,.mode-options>button,.tier-tabs button.active,.audio-btn,.task-label,.streak-pill,.source-stats span){background:#30442e;border-color:#4b5e41;color:#c9dbb7}:root[data-theme=dark] :is(.gold,.task-label,.tier-拓展,.streak-pill){background:#423d29;color:#e5ce99;border-color:#625735}:root[data-theme=dark] .clay{background:#44382b;color:#ddbd95}:root[data-theme=dark] .sage{background:#2c4039;color:#b5d0c4}:root[data-theme=dark] :is(.primary,.grade-actions button:last-child){background:#92b17c;border-color:#92b17c;color:#172619;box-shadow:none}:root[data-theme=dark] .primary:hover:not(:disabled){background:#a6c18f}:root[data-theme=dark] :is(.icon-btn:hover,.task-row:hover){background:#32442d;color:#d9e6c7}:root[data-theme=dark] .is-favorite{color:#e4c788}:root[data-theme=dark] :is(.word-read[aria-pressed=true],.sentence-read.is-speaking){color:#aacc86}:root[data-theme=dark] :is(.audio-btn.is-speaking,.icon-btn.is-speaking){background:#49613a;color:#e4efcf;box-shadow:0 0 0 3px #b4cd9520}:root[data-theme=dark] :is(.topbar,.task-row,.meaning-line,.tile-bottom,.tier-tabs,.moment-bottom,.weak-list>button){border-color:#3a4b3a}:root[data-theme=dark] :is(.goal-divider,.progress-track){background:#44543a}:root[data-theme=dark] .progress-track i{background:#a3bd83}:root[data-theme=dark] :is(.heatmap>span,.heatmap-footer i){background:#34452f}:root[data-theme=dark] .heat-1{background:#526c40!important}:root[data-theme=dark] .heat-2{background:#85a366!important}:root[data-theme=dark] .heat-3{background:#bbd09b!important}:root[data-theme=dark] .tiny-ring>span{background:#202e25}:root[data-theme=dark] :is(.daily-setting input,.answer-form input){background:#19271d;border-color:#4b6242;color:#d8e4c7}:root[data-theme=dark] .search-box input{color:#e0e7d7}:root[data-theme=dark] :is(.search-box input::placeholder,.answer-form input::placeholder){color:#adbc9e}:root[data-theme=dark] .grade-actions button{background:#44372a;border-color:#66543d;color:#ecd4b5}:root[data-theme=dark] .grade-actions button:nth-child(2){background:#413d25;border-color:#645d33;color:#e8d79e}:root[data-theme=dark] .answer-feedback{background:#44372a;color:#ecd4b5}:root[data-theme=dark] .answer-feedback.correct{background:#30442e;color:#cfe0b6}:root[data-theme=dark] :is(.completion-icon,.avatar){background:#344b2f;color:#d6e4bc}:root[data-theme=dark] :is(.import-report h4,.import-report p){color:#e4d4ad}:root[data-theme=dark] .mobile-nav{background:#1c2921f5;border-color:#354535}:root[data-theme=dark] .mobile-nav>button{color:#b5c5a7}:root[data-theme=dark] .mobile-nav>button.active{color:#dbe9c8}:root[data-theme=dark] .loading{background:#151e19;color:#d0deb9}:root[data-theme=dark] .loading p{color:#b3c1a6}:root[data-theme=dark] .botanical{filter:brightness(.85) saturate(.8)}:root[data-theme=dark] :is(.hero:after,.goal-panel:after,.sidebar-note:after){border-color:#44593b}:root[data-theme=dark] .word-dialog::backdrop{background:#060b08b0}:root[data-theme=dark] .hero:after,:root[data-theme=dark] .goal-panel:after,:root[data-theme=dark] .sidebar-note:after{border-color:#44593b}:root[data-theme=dark] .brand-mark{background:#496638}.dialog-notice{font-size:11px;line-height:1.8;background:#f0f3e7;color:#526c43;padding:12px 14px;border-radius:7px;margin-top:17px}:root[data-theme=dark] .dialog-notice{background:#30442e;color:#d7e6c4}:root[data-theme=dark] :is(button,a,input,select):focus-visible{outline-color:#c0d997}:root[data-theme=dark] .toast{background:#385130;color:#f0f5e5}@media(max-width:540px){.theme-options{gap:9px}.theme-options>button{padding:16px 12px;gap:10px}.theme-options b{font-size:11px}.theme-options small{font-size:9px;line-height:1.7}.theme-options>button>svg{width:19px}}:root{--text: #293c32;--surface: #fffef9;--bg: #f6f7f0;--muted: #626d60}[data-theme=dark]{--text: #e6ebe3;--surface: #202b24;--bg: #19231d;--muted: #b0beac;--border: #39483c}.feature-modal{width:min(600px,calc(100% - 32px));max-height:calc(100dvh - 40px);overflow:auto;padding:30px;border:1px solid var(--border);border-radius:24px;color:var(--text);background:var(--surface);box-shadow:0 25px 100px #0003}.feature-modal::backdrop{background:#15261c75;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.feature-heading{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:24px}.feature-heading h2{font-size:24px;line-height:1.5;margin:8px 0 0}.feature-heading .icon-btn{flex-shrink:0}.feature-form,.feature-stack{display:flex;flex-direction:column;gap:18px}.feature-form label,.feature-grid label{display:flex;flex-direction:column;gap:8px;font-size:13px;font-weight:600}.feature-form input,.feature-grid input{width:100%;min-width:0;border:1px solid var(--border);border-radius:12px;padding:12px 14px;background:var(--bg);color:var(--text);font:inherit;min-height:46px}.feature-form input:focus,.feature-grid input:focus{outline:2px solid var(--green);outline-offset:2px}.feature-form p,.feature-stack p,.feature-empty p,.personal-plan p,.migration-card p{font-size:14px;line-height:1.8;margin:0}.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.feature-links,.feature-tabs{display:flex;gap:16px;flex-wrap:wrap}.feature-tabs{padding:5px;border:1px solid var(--border);border-radius:12px;margin-bottom:24px;gap:4px}.feature-tabs button{flex:1;border:0;border-radius:8px;background:transparent;padding:10px;color:var(--text)}.feature-tabs .active{background:var(--green);color:#fff}.feature-message{padding:14px;border-radius:12px;background:var(--bg);border:1px solid var(--border);font-size:14px;line-height:1.7}.feature-muted{font-size:12px!important;color:var(--muted);line-height:1.8}.feature-steps{display:flex;gap:8px;justify-content:space-between;padding-bottom:24px;font-size:12px;color:var(--muted)}.feature-steps .active{color:var(--green);font-weight:700}.account-entry{background:transparent;border:1px solid var(--border);border-radius:50px;padding:8px 14px;color:var(--text);font-size:12px;white-space:nowrap}.personal-plan{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:26px;padding:24px 28px}.personal-plan h3{font-size:19px;margin:8px 0}.personal-plan .secondary{flex-shrink:0}.migration-card{padding:24px;margin-bottom:24px}.migration-card .feature-links{margin-top:16px}.assessment-invitation{padding:24px;border-radius:18px;background:var(--bg)}.assessment-number{display:block;color:var(--green);font:italic 54px Georgia,serif}.assessment-number span{font:12px sans-serif;margin-left:10px}.assessment-invitation h3{font-size:20px;line-height:1.6;margin:14px 0}.assessment-meta{display:flex;justify-content:space-between;font-size:13px}.assessment-meta b{color:var(--green);font-variant-numeric:tabular-nums}.assessment-track{height:4px;background:var(--border);margin-top:12px;border-radius:10px;overflow:hidden}.assessment-track span{display:block;height:100%;background:var(--green);transition:width .2s}.assessment-card h3{font:44px Georgia,serif;text-align:center;padding:18px 0 0;overflow-wrap:anywhere}.assessment-card>p{text-align:center;color:var(--muted);font-size:13px}.assessment-options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:24px 0}.assessment-options button{display:flex;align-items:center;gap:12px;text-align:left;min-height:65px;border:1px solid var(--border);border-radius:12px;background:var(--bg);color:var(--text);padding:14px;font-size:15px}.assessment-options button:hover{border-color:var(--green)}.assessment-options span{color:var(--green);font-size:12px;font-weight:700}.assessment-card>.text-btn{display:block;margin:auto}.assessment-result{background:var(--bg);padding:20px;border-radius:16px}.assessment-result h3{font-size:17px;margin:0 0 8px}.assessment-result-row{display:flex;justify-content:space-between;gap:10px;font-size:13px;padding:12px 0;border-bottom:1px solid var(--border)}.assessment-result-row small{color:var(--muted)}.plan-explanation{border-left:3px solid var(--green);padding-left:16px}.plan-explanation p+p{margin-top:10px}.recall-panel{padding-top:20px}.recall-panel>p{font-size:14px;color:var(--muted);text-align:center}.hint-panel{border-top:1px solid var(--border);text-align:left}.hint-panel h3{font-size:20px;margin:12px 0}.hint-panel .example{margin-bottom:18px}.hint-panel .english-example{font-family:Georgia,serif;font-size:20px;line-height:1.7;color:var(--text)}.recall-confirm{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin:28px 0 10px}.recall-confirm kbd{margin-left:12px;font-size:10px;opacity:.8}[data-theme=dark] .feature-tabs .active{color:#172619}.hint-phrases{font-family:Georgia,serif}.recall-panel .grade-actions{margin-top:22px}[data-theme=dark] .feature-modal{background:#202b24;color:#e6ebe3}[data-theme=dark] .feature-steps .active,[data-theme=dark] .assessment-number,[data-theme=dark] .assessment-meta b,[data-theme=dark] .assessment-options span{color:#afd0af}.recall-confirm kbd{color:inherit;opacity:1;border-color:currentColor}@media(max-width:650px){.feature-modal{padding:22px 18px;border-radius:18px}.feature-heading h2{font-size:21px}.personal-plan{flex-direction:column;align-items:stretch;padding:20px}.personal-plan .secondary{align-self:flex-start}.feature-steps{font-size:11px}.feature-grid{gap:12px}.account-entry{padding:8px 10px}.assessment-options{grid-template-columns:1fr}.assessment-options button{min-height:48px}.recall-confirm{flex-direction:column}.recall-confirm button{width:100%}}.landing{min-height:100dvh;background:var(--bg);color:var(--text);padding:0 clamp(24px,5vw,90px);overflow:hidden}.landing-nav{max-width:1400px;margin:auto;padding:30px 0;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);gap:20px}.landing-nav>div,.landing-brand{display:flex;align-items:center;gap:22px}.landing-brand{text-decoration:none;color:var(--text);gap:12px}.landing-brand strong{font-size:24px}.landing-brand small{display:block;font-family:Georgia,serif;font-weight:400;letter-spacing:2px;font-size:13px;margin-top:3px}.landing-motto{font-size:13px;color:var(--muted)}.landing-main{max-width:1300px;margin:60px auto 35px;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(340px,.85fr);align-items:center;gap:clamp(30px,6vw,95px)}.landing-kicker{display:flex;gap:8px;align-items:center;font-size:10px;letter-spacing:2px;color:var(--muted)}.landing-story h1{font-family:"Noto Serif SC",Songti SC,SimSun,serif;font-weight:500;font-size:clamp(40px,4.4vw,68px);letter-spacing:1px;line-height:1.4;margin:22px 0 18px}.landing-story h1 em{font-style:normal;color:var(--deep);position:relative}.landing-story h1 em:after{content:"";position:absolute;bottom:-7px;left:0;width:100%;height:7px;border:1px solid var(--gold);border-radius:50%;border-left:0;border-right:0;transform:rotate(-4deg)}.landing-lead{line-height:2;color:var(--muted);font-size:15px}.landing-cta{display:flex;align-items:center;gap:20px;margin-top:26px}.landing-cta span{font-size:12px;color:var(--muted)}.landing-cta .primary{min-height:48px;padding:14px 26px}.landing-garden{position:relative;height:265px;margin-top:15px}.landing-garden .botanical{position:absolute;width:390px;height:auto;right:-10px;bottom:0;opacity:.95}.sample-word{position:absolute;left:0;top:40px;width:235px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:21px;box-shadow:0 12px 35px #1835250c;transform:rotate(-4deg)}.sample-word>span{font-size:10px;color:var(--muted);display:flex;justify-content:space-between}.sample-word>strong{font:34px Georgia,serif;display:block;margin:14px 0 6px}.sample-word small{font-size:12px;color:var(--muted)}.sample-word p{font-size:12px;line-height:1.8;margin:8px 0 15px}.sample-word>div{display:flex;align-items:center;gap:8px;font-size:11px;border-top:1px solid var(--border);padding-top:12px;color:var(--deep)}.garden-caption{position:absolute;bottom:5px;right:15px;font:italic 15px Georgia,serif;color:var(--muted)}.landing-facts{display:flex;border-top:1px solid var(--border);padding-top:22px;gap:32px;margin-top:15px}.landing-facts>div{display:flex;flex-direction:column;gap:9px}.landing-facts b{font:26px Georgia,serif;color:var(--deep)}.landing-facts span{font-size:11px;color:var(--muted)}.landing-account{background:var(--surface);border:1px solid var(--border);border-radius:26px;padding:36px;box-shadow:0 22px 70px #203d3010;position:relative}.account-sprout{display:block;margin-bottom:20px;color:var(--deep)}.landing-account h2{font-family:"Noto Serif SC",SimSun,serif;font-size:24px;line-height:1.6;margin:12px 0}.landing-account-intro{font-size:13px;line-height:1.9;color:var(--muted);margin-bottom:26px}.inline-account .feature-empty{padding:0}.inline-account .feature-tabs{margin-bottom:20px}.landing-private{display:flex;align-items:center;justify-content:center;gap:8px;border-top:1px solid var(--border);margin-top:25px;padding-top:20px;color:var(--muted);font-size:11px}.landing-footer{max-width:1300px;margin:45px auto 0;padding:25px 0;display:flex;justify-content:space-between;font-size:11px;color:var(--muted);border-top:1px solid var(--border)}.landing-footer span:first-child{letter-spacing:2px}.test-mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.test-mode-grid .secondary{display:flex;flex-direction:column;align-items:flex-start;padding:20px;gap:8px}.test-mode-grid span{font-size:12px;font-weight:400;color:var(--muted)}.assessment-options button,.assessment-unknown{min-height:56px;touch-action:manipulation}.assessment-unknown{display:flex;align-items:center;justify-content:flex-start;gap:14px;width:100%;border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:12px;padding:16px 18px;margin:14px 0;font-size:15px;cursor:pointer}.assessment-unknown:hover{border-color:var(--green);background:var(--surface)}.assessment-unknown kbd{margin-left:auto;font-size:12px;color:var(--muted);border:1px solid var(--border);border-radius:5px;padding:4px 7px}.assessment-card .vst-prompt{font-family:Georgia,serif;color:var(--text);font-size:18px;line-height:1.8}.early-end{border:1px solid var(--gold);padding:18px;border-radius:12px;margin-top:20px}.early-end button{margin:12px 10px 0 0}.early-end p{line-height:1.8;font-size:14px}.vocabulary-total{margin:18px 0!important;color:var(--deep);font-size:16px!important}.vocabulary-total strong{font:48px Georgia,serif;letter-spacing:-1px}.vocabulary-total span{font-size:16px}.vocabulary-result details{font-size:12px;line-height:1.9;margin-top:18px}.vocabulary-result a{color:var(--deep);text-decoration:underline}.band-results{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:20px 0}.band-results>div{padding:12px;background:var(--bg);border-radius:10px;display:flex;flex-direction:column;gap:7px}.band-results b{font-size:13px}.band-results span{font-size:11px;color:var(--muted)}.band-results meter{width:100%;height:7px;accent-color:var(--green)}.home-vocabulary{display:flex;align-items:center;justify-content:space-between;padding:25px 30px;gap:22px}.home-vocabulary .assessment-result{padding:16px 0;border:none;background:none}.home-vocabulary .vocabulary-total strong{font-size:36px}.home-vocabulary>div>p{font-size:14px;color:var(--muted);line-height:1.8}.home-vocabulary .feature-links{flex-direction:column;flex-shrink:0}.personal-center{padding:30px 0 50px;display:flex;flex-direction:column;gap:24px}.personal-cover{position:relative;overflow:hidden;border:1px solid var(--border);padding:38px;border-radius:18px;background:var(--cream);color:var(--text)}.personal-cover h1{font: 34px/1.6 "Noto Serif SC",SimSun,serif;margin:15px 0}.personal-cover p{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:14px;position:relative;z-index:1}.cover-leaf{position:absolute;right:30px;top:40px;opacity:.16;transform:rotate(-25deg)}.personal-columns{display:grid;grid-template-columns:1fr 1fr;gap:24px}.personal-section{padding:30px}.personal-section h2{font-size:19px;margin:0 0 20px;display:flex;align-items:center;gap:9px}.personal-section h3{font-size:16px}.personal-section p{font-size:14px;line-height:1.9;color:var(--muted)}.personal-section>.secondary,.personal-section>.primary{margin:12px 0}.personal-section .assessment-result{background:none;border:none;padding:0}.personal-section hr{border:0;border-top:1px solid var(--border);margin:26px 0}.personal-section>.text-btn{margin-top:22px}.landing :is(button,input),.personal-center :is(button,input){min-height:44px}.landing :is(button,a):focus-visible,.assessment-card button:focus-visible,.personal-center button:focus-visible{outline:3px solid var(--green);outline-offset:4px}.landing button,.personal-center button{transition-property:transform,box-shadow}.auth-callback-message{position:relative;z-index:30;margin:0;padding:14px 25px;text-align:center;background:var(--surface);color:var(--text);border-bottom:1px solid var(--border)}@media(max-width:700px){.mobile-nav>button{padding-left:8px;padding-right:8px;min-width:0;min-height:48px;flex:1}.mobile-nav{gap:2px}}@media(max-width:1000px){.landing-main{gap:30px;grid-template-columns:1fr 1fr;margin-top:40px}.landing-account{padding:26px}.landing-garden .botanical{width:300px;right:-40px}.sample-word{width:210px}.landing-facts{gap:16px}.landing-story h1{font-size:45px}.landing-motto{display:none}}@media(max-width:700px){.landing-nav{padding:20px 0}.landing-nav>div{gap:8px}.landing-brand strong{font-size:21px}.landing-brand small{font-size:11px}.landing-main{grid-template-columns:1fr;margin-top:30px;gap:35px}.landing-story h1{font-size:43px}.landing-kicker{font-size:8px;letter-spacing:1.4px}.landing-garden{height:230px}.landing-garden .botanical{width:310px;right:-20px}.sample-word{top:25px;width:195px;padding:17px}.sample-word>strong{font-size:30px}.landing-account h2{font-size:23px}.landing-facts{justify-content:space-between;gap:8px}.landing-facts span{font-size:10px}.landing-footer{gap:20px;flex-direction:column;margin-top:30px}.personal-columns{grid-template-columns:1fr}.personal-cover{padding:25px}.personal-cover h1{font-size:27px}.personal-section{padding:24px}.cover-leaf{right:-35px}.home-vocabulary{flex-direction:column;align-items:stretch;padding:24px}.home-vocabulary .feature-links{flex-direction:row}.test-mode-grid{grid-template-columns:1fr}.band-results{grid-template-columns:1fr 1fr}.personal-cover p{overflow-wrap:anywhere}.vocabulary-total strong{font-size:40px}}@media(prefers-reduced-motion:no-preference){.landing-story,.landing-account{animation:entrance-rise .65s ease both}.landing-account{animation-delay:.12s}@keyframes entrance-rise{0%{transform:translateY(15px)}to{transform:none}}}.landing button,.personal-center button,.feature-modal button,.grade-actions button,.recall-confirm button,.sentence-read,.audio-btn,.icon-btn{min-height:48px}.audio-btn,.icon-btn{min-width:48px}@media(max-width:760px){input,select,textarea,.feature-form input,.feature-form select,.feature-form textarea{font-size:16px}.landing{width:auto;margin-left:16px;margin-right:16px}.landing-account{min-width:0;padding:22px 18px}.landing-story h1{font-size:clamp(32px,9vw,43px)}.landing-nav>div{gap:4px}.landing-brand strong{font-size:19px}.landing-story,.landing-account,.panel{min-width:0}.feature-form input{min-width:0;width:100%}.feature-links{flex-wrap:wrap}.feature-modal{max-height:calc(100dvh - 24px);overflow:auto}}