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.subject-tile:hover{border-color:var(--subject-line)}.learning-page .subject-glyph{border-radius:var(--ds-radius-sm);width:40px;height:40px;font-size:25px}.learning-page .subject-tile-copy{gap:2px}.learning-layout{grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:24px;display:grid}.learning-panel,.side-panel{border:1px solid var(--ds-border);border-radius:var(--ds-radius-sm);background:var(--ds-surface);box-shadow:var(--ds-shadow-sm)}.learning-panel{padding:22px}.learning-panel__heading,.side-panel__heading{justify-content:space-between;align-items:center;gap:16px;display:flex}.learning-panel__heading{border-bottom:1px solid var(--ds-border);padding-bottom:18px}.learning-panel__heading h2{font-size:var(--ds-font-lg);margin-top:4px}.unit-count{border-radius:var(--ds-radius-full);color:var(--ds-text-muted);background:var(--ds-surface-muted);font-size:var(--ds-font-xs);white-space:nowrap;padding:6px 10px;font-weight:650}.resume-card{border:1px solid var(--subject-line);border-radius:var(--ds-radius-sm);background:var(--subject-soft);align-items:center;gap:12px;margin-top:18px;padding:12px 14px;display:flex}.resume-card__icon{border-radius:var(--ds-radius-sm);width:38px;height:38px;color:var(--subject);background:#fff;place-items:center;display:grid}.resume-card>span:nth-child(2){flex:1;min-width:0}.resume-card strong,.resume-card small{display:block}.resume-card small{color:var(--ds-text-muted);font-size:var(--ds-font-xs);margin-top:2px}.lesson-list{gap:10px;margin-top:18px;display:grid}.lesson-card{border:1px solid var(--ds-border);border-radius:var(--ds-radius-sm);background:var(--ds-surface);grid-template-columns:44px minmax(0,1fr) auto auto;align-items:center;gap:14px;min-height:84px;padding:12px 14px;transition:border-color .15s,background-color .15s,box-shadow .15s;display:grid}.lesson-card:hover{border-color:var(--ds-border-strong);box-shadow:var(--ds-shadow-sm)}@supports (color:color-mix(in lab, red, red)){.lesson-card.is-current{background:color-mix(in srgb, var(--subject-soft) 62%, white)}}.lesson-card__icon{border-radius:var(--ds-radius-sm);color:#7d9185;background:var(--ds-surface-muted);place-items:center;width:44px;height:44px;display:grid}.lesson-card.is-current .lesson-card__icon{color:#fff;background:var(--subject)}.lesson-card.is-complete .lesson-card__icon{color:#56803c;background:#edf6e8}.lesson-card__copy{min-width:0}.lesson-card__meta{color:var(--ds-text-muted);font-size:var(--ds-font-xs);align-items:center;gap:8px;font-weight:650;display:flex}.lesson-card__meta span{border-radius:var(--ds-radius-full);color:var(--subject);background:var(--subject-soft);padding:2px 7px}.lesson-card.is-complete .lesson-card__meta span{color:#668348;background:#edf5e8}.lesson-card h3{font-size:var(--ds-font-md);margin-top:4px;line-height:1.35}.lesson-card p{color:var(--ds-text-muted);font-size:var(--ds-font-sm);margin-top:3px}.lesson-card__preview{border-radius:var(--ds-radius-sm);color:#72847a;font-family:ui-monospace,monospace;font-size:var(--ds-font-xs);white-space:nowrap;background:#f5f8f5;padding:5px 9px}.lesson-card__action{min-width:82px}.learning-sidebar{gap:16px;display:grid}.side-panel{padding:18px}.side-panel__heading h2{font-size:var(--ds-font-md);align-items:center;gap:7px;display:flex}.side-panel__heading>span{color:var(--ds-warning);font-size:var(--ds-font-xs);font-weight:700}.side-panel__heading>span.is-done{color:var(--ds-primary)}.goal-panel .goal-count{align-items:baseline;gap:6px;margin-top:16px;display:flex}.goal-panel .goal-count strong{font-size:34px;line-height:1}.goal-panel .goal-count>span:not(.goal-star){color:var(--ds-text-muted);font-size:var(--ds-font-sm)}.goal-panel .goal-star{color:#c49b35;margin-left:auto}.goal-panel .meter{margin-top:14px}.goal-panel>p{color:var(--ds-text-muted);font-size:var(--ds-font-xs);margin-top:10px;line-height:1.55}.review-panel{grid-template-columns:42px minmax(0,1fr);gap:0 12px;display:grid}.review-panel__icon{border-radius:var(--ds-radius-sm);width:42px;height:42px;color:var(--ds-primary);background:var(--ds-primary-soft);place-items:center;display:grid}.review-panel p{color:var(--ds-text-muted);font-size:var(--ds-font-xs);margin-top:3px}.review-panel .ds-button{grid-column:1/-1;justify-content:space-between;margin-top:14px}.companion-card{border-radius:var(--ds-radius-sm);background:#f7faf2;border:1px solid #e2e9d8;grid-template-columns:96px minmax(0,1fr);align-items:center;gap:10px;padding:8px 12px;display:grid}.companion-card p{color:var(--ds-text-muted);font-size:var(--ds-font-xs);margin-top:4px;line-height:1.6}@media (width<=980px){.learning-layout{grid-template-columns:minmax(0,1fr)}.learning-sidebar{grid-template-columns:repeat(2,minmax(0,1fr))}.companion-card{grid-column:1/-1}}@media (width<=700px){.ds-button{min-height:var(--ds-control-md)}.learning-hero{flex-direction:column;align-items:stretch;gap:16px}.learning-hero__goal{width:100%}.subject-picker{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-page .subject-tile{gap:8px;height:70px;padding:10px}.learning-page .subject-tile small{display:none}.learning-page .subject-glyph{width:36px;height:36px;font-size:22px}.learning-panel{padding:16px}.lesson-card{grid-template-columns:42px minmax(0,1fr) auto;gap:10px}.lesson-card__preview{display:none}.lesson-card__action{width:44px;min-width:44px;padding:0;font-size:0}.lesson-card__action svg{width:18px;height:18px}.english-options .answer-option{font-size:22px}.learning-sidebar{grid-template-columns:minmax(0,1fr)}.companion-card{grid-column:auto}}.subject-hanzi{--subject-dark:#24664f}.subject-pinyin{--subject-dark:#b75b47}.subject-math{--subject-dark:#3d6f9c}.subject-english{--subject:#a76d17;--subject-soft:#fff5dd;--subject-line:#e8ce94;--subject-dark:#7f500c}.page-content{max-width:1180px}.learning-page{gap:22px}.learning-hero{border-radius:var(--ds-radius-sm);background:#edf8f1;border:1px solid #d4e7da;align-items:center;padding:26px 28px 26px 34px;position:relative}.learning-hero:before{content:"";background:var(--ds-primary);width:2px;position:absolute;top:0;bottom:0;left:0}.learning-kicker{color:#3f765e;font-size:var(--ds-font-body);font-weight:750}.learning-hero h1{color:#183229;margin-top:7px;font-size:clamp(32px,3.6vw,42px);line-height:1.16}.learning-hero p{color:#597066;font-size:var(--ds-font-md)}.learning-hero__stats{grid-template-columns:repeat(3,minmax(88px,1fr));gap:10px;display:grid}.learning-hero__stats>div{border-radius:var(--ds-radius-sm);background:#fff;border:1px solid #d3e6d9;min-width:96px;padding:11px 14px}.learning-hero__stats strong{color:var(--ds-primary);font-size:24px;line-height:1.1;display:block}.learning-hero__stats small{color:#7a8c83;font-size:var(--ds-font-xs)}.learning-hero__stats span{color:#6d7f76;font-size:var(--ds-font-xs);white-space:nowrap;margin-top:5px;display:block}.learning-page .subject-picker{gap:14px}.learning-page .subject-tile{border:2px solid var(--subject-line);border-radius:var(--ds-radius-sm);height:94px;box-shadow:0 4px 0 var(--subject-line);background:#fff;gap:14px;padding:14px 16px;transition:transform .14s,box-shadow .14s,background-color .14s}.learning-page .subject-tile:hover{box-shadow:0 6px 0 var(--subject-line);transform:translateY(-2px)}.learning-page .subject-tile.selected{color:#fff;border-color:var(--subject);background:var(--subject);box-shadow:0 4px 0 var(--subject-dark)}.learning-page .subject-glyph{width:48px;height:48px;color:var(--subject);border:1px solid var(--subject-line);background:var(--subject-soft);font-size:28px}.learning-page .subject-tile.selected .subject-glyph{color:var(--subject);background:#fff;border-color:#fff}.learning-page .subject-tile strong{color:var(--ds-text);font-size:var(--ds-font-md)}.learning-page .subject-tile small{color:#75867d;font-size:var(--ds-font-xs)}.learning-page .subject-tile.selected strong,.learning-page .subject-tile.selected small{color:#fff}.learning-page .subject-tile.selected small{opacity:.9}.learning-page .subject-selected-icon{color:#fff}.nav-link .mantine-Button-inner{justify-content:flex-start;gap:14px;width:100%}.learning-layout{grid-template-columns:minmax(0,1fr) 310px;gap:28px}.learning-panel{box-shadow:none;background:0 0;border:0;padding:0}.learning-panel__heading{border-bottom:0;padding:0 4px 14px}.section-kicker{color:var(--subject);font-size:var(--ds-font-sm);font-weight:800}.learning-panel__heading h2{color:#20352d;font-size:24px}.unit-count{color:var(--subject);background:var(--subject-soft)}.resume-card{border:2px solid var(--subject-line);box-shadow:0 4px 0 var(--subject-line);gap:14px;margin-top:0;padding:15px 16px}.resume-card__icon{color:#fff;background:var(--subject);width:44px;height:44px}.resume-card strong{font-size:15px}.lesson-list{gap:13px;margin-top:16px}.lesson-card{border-radius:var(--ds-radius-sm);background:#fff;border:2px solid #dfe8e2;grid-template-columns:52px minmax(0,1fr) auto auto;gap:15px;min-height:94px;padding:15px 16px;box-shadow:0 4px #e2eae5}.lesson-card:hover{border-color:var(--subject-line);box-shadow:0 6px 0 var(--subject-line);transform:translateY(-2px)}.lesson-card.is-current{border-color:var(--subject-line);background:var(--subject-soft)}@supports (color:color-mix(in lab, red, red)){.lesson-card.is-current{background:color-mix(in srgb, var(--subject-soft) 72%, white)}}.lesson-card.is-complete{background:#fbfdf8}.lesson-card__icon{width:52px;height:52px;color:var(--subject);border:1px solid var(--subject-line);background:var(--subject-soft)}.lesson-card.is-current .lesson-card__icon{box-shadow:0 3px 0 var(--subject-dark)}.lesson-card__meta{color:#72837a;font-size:var(--ds-font-xs)}.lesson-card__meta span{padding:3px 8px;font-weight:800}.lesson-card h3{color:#1f342c;font-size:18px}.lesson-card p{color:#697a72;font-size:var(--ds-font-body)}.lesson-card__preview{color:#52665c;font-size:var(--ds-font-sm);background:#fff;border:1px solid #e3eae6;padding:6px 10px}.learning-sidebar{gap:18px}.side-panel{border:2px solid #dce7e0;padding:20px;box-shadow:0 4px #e0e9e3}.side-panel__heading h2{color:#243a31;font-size:18px}.goal-panel{background:#fffdf6;border-color:#eddcae;box-shadow:0 4px #efe2ba}.goal-ring-row{align-items:center;gap:16px;margin-top:16px;display:flex}.goal-ring-label{text-align:center}.goal-ring-label strong{color:var(--ds-primary);font-size:24px;line-height:1;display:block}.goal-ring-label small{color:#78877e;margin-top:3px;font-size:11px;display:block}.goal-ring-copy{min-width:0}.goal-ring-copy>strong{font-size:15px}.goal-ring-copy>p{color:#6f7e75;font-size:var(--ds-font-xs);margin-top:5px;line-height:1.55}.goal-ring-copy>span{color:#aa7b1b;font-size:var(--ds-font-xs);align-items:center;gap:4px;margin-top:8px;font-weight:800;display:inline-flex}.goal-panel .week{margin-top:17px}.review-panel{background:#f8fcf9;border-color:#cfe1d8}.review-panel__icon{width:48px;height:48px;color:var(--ds-primary);background:#e1f1e8}.review-panel h3{font-size:17px}.review-panel p{font-size:var(--ds-font-sm)}.review-panel .ds-button{margin-top:16px}.companion-card{background:#f4faee;border:2px solid #d7e7ca;grid-template-columns:108px minmax(0,1fr);gap:14px;padding:12px 14px;box-shadow:0 4px #deead5}.companion-card img{width:108px;height:108px}.companion-card strong{font-size:15px}.companion-card p{font-size:var(--ds-font-sm)}@media (width<=980px){.learning-hero{flex-direction:column;align-items:stretch}.learning-hero__stats{max-width:420px}.learning-layout{grid-template-columns:minmax(0,1fr)}.learning-sidebar{grid-template-columns:repeat(2,minmax(0,1fr))}.companion-card{grid-column:1/-1}}@media (width<=700px){.learning-hero{padding:22px 18px 22px 24px}.learning-hero h1{font-size:30px}.learning-hero__stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.learning-hero__stats>div{min-width:0;padding:9px 8px}.learning-hero__stats strong{font-size:20px}.learning-page .subject-picker{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-page .subject-tile{height:82px;padding:11px}.learning-page .subject-glyph{width:40px;height:40px;font-size:24px}.learning-panel__heading h2{font-size:21px}.lesson-card{grid-template-columns:46px minmax(0,1fr) auto;min-height:86px;padding:13px 12px}.lesson-card__icon{width:46px;height:46px}.lesson-card h3{font-size:16px}.lesson-card p{font-size:var(--ds-font-sm)}.learning-sidebar{grid-template-columns:minmax(0,1fr)}.goal-ring-row{gap:12px}.companion-card{grid-column:auto}}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}:root{--ds-page:#fff;--ds-text:#25282d;--ds-text-muted:#606770;--ds-primary:#2766ce;--ds-primary-hover:#1d54b2;--ds-primary-soft:#edf3ff;--ds-border:#e2e7ee;--green:var(--ds-primary);--ink:var(--ds-text);--border:var(--ds-border);--ds-font-body:15px}.subject-chinese{--subject:#2f6f61;--subject-soft:#edf7f2;--subject-line:#bfded1}.subject-hanzi{--subject:#21876a;--subject-soft:#eaf7f0;--subject-line:#b7ddcd}.subject-pinyin{--subject:#cc564a;--subject-soft:#fff0eb;--subject-line:#eac2b9}.subject-math{--subject:#326ecb;--subject-soft:#edf3ff;--subject-line:#bdcfee}.subject-english{--subject:#9d701d;--subject-soft:#fff7da;--subject-line:#e9d99d}body{color:var(--ds-text);background:#fff}.app-shell{background:#fff}.sidebar{background:#f7f8fa;border-color:#e6eaf0;width:206px;padding:32px 20px 22px}.brand{color:#24334b;gap:9px;font-size:23px}.brand-icon{background:#2468cb;border-radius:8px;width:38px;height:42px}.brand small{color:#7b8799;font-size:10px}.sidebar nav{gap:10px;margin-top:45px}.nav-link{color:#647087;height:52px;padding-inline:17px;font-size:15px}.nav-link.active{color:#2464c8;background:#eaf2ff;border:1px solid #c9dafa}.nav-link .mantine-Button-inner{justify-content:flex-start;gap:12px}.sidebar-bottom .tiny-plant,.sidebar-bottom>p{display:none}.profile{border-color:#e1e6ef}.profile small{color:#7d8a9e}.avatar{color:#326ac5;background:#dceafa}.workspace{margin-left:206px}.topbar{border-color:#e8ecf3;height:76px;padding-inline:40px}.desktop-breadcrumb{color:#7e899a;font-size:13px}.topbar-stats{gap:23px}.topbar-stats .streak-stat{color:#d86d38}.topbar-stats .star-stat{color:#a37a18}.page-content{max-width:1340px;padding:32px 40px 40px}.app-footer{color:#8591a1;border-color:#e7ebf2;font-size:11px}.ds-button{border-radius:7px;min-height:44px;font-size:14px;font-weight:700}.ds-button .mantine-Button-inner{gap:9px}.ds-button .mantine-Button-label{align-items:center;gap:9px;display:flex}.nav-link .mantine-Button-label{gap:12px;width:100%}.button--primary{background:var(--ds-primary);color:#fff}.button--primary:hover:not(:disabled){background:var(--ds-primary-hover)}.button--outline{color:#4c607b;background:#fff;border:1.5px solid #dbe2eb}.button--ghost{color:#60728c}.button--primary:disabled{color:#8b97a8;box-shadow:none;background:#e7ebf0}.ds-button--icon{padding:0}.learn-greeting{justify-content:space-between;align-items:center;gap:18px;margin-bottom:25px;display:flex}.learn-greeting p{color:#738197;margin-bottom:7px;font-size:13px}.learn-greeting h1{font-size:29px;font-weight:800;line-height:1.4}.learning-level{color:#71816b;white-space:nowrap;align-items:center;gap:6px;font-size:12px;display:flex}.subject-tabs{margin-bottom:24px}.subject-tabs .mantine-Tabs-list{background:#f5f7fa;border:1px solid #e4e9ef;border-radius:16px;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;padding:5px;display:grid;overflow:hidden}.subject-tabs .mantine-Tabs-list:before{display:none}.subject-tabs .mantine-Tabs-tab{color:#6d7a8d;border:0;border-radius:11px;justify-content:center;min-height:48px;padding-inline:18px;font-size:15px;font-weight:700;transition:background .16s,color .16s,box-shadow .16s}.subject-tabs .mantine-Tabs-tab[data-active]{color:var(--subject);background:#fff;box-shadow:0 2px 9px #293a5014}.subject-tabs .mantine-Tabs-tab:focus-visible{outline:2px solid var(--subject);outline-offset:-3px}.home-columns{grid-template-columns:minmax(0,1fr) 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