:root{--bg:#fafaf7;--surface:#fff;--surface-soft:#f4f2ee;--ink:#0f172a;--ink-soft:#64748b;--mute:#64748b;--ink-faint:#94a3b8;--hairline:#e5e7eb;--indigo-900:#3d2b73;--indigo-700:#5741a0;--indigo-600:#6f5dae;--indigo-100:#ede7f8;--brand:#5741a0;--brand-deep:#3d2b73;--brand-soft:#ede7f8;--brand-on:#fff;--writing-bg:#fef3c7;--writing-fg:#a16207;--speaking-bg:#fce7f3;--speaking-fg:#be185d;--vocab-bg:#dcfce7;--vocab-fg:#166534;--listening-bg:#ede9fe;--listening-fg:#6d28d9;--grammar-bg:#fef3c7;--grammar-fg:#a16207;--fire-grad:linear-gradient(135deg,#f97316,#fbbf24);--fire-text:#92400e;--fire-stroke:#fcd34d;--dot-weak:#b91c1c;--dot-mid:#f59e0b;--dot-strong:#15803d;--success:#166534;--success-deep:#14532d;--success-soft:#dcfce7;--error:#c44545;--error-deep:#b33535;--error-soft:#fbe9e9;--shadow-card:0 0.025rem 0.075rem rgba(15,23,42,.06),0 0.1rem 0.4rem rgba(15,23,42,.04);--shadow-cta:0 0.2rem 0.6rem rgba(53,76,108,.3);--shadow-pop:0 0.3rem 0.8rem rgba(15,23,42,.12);--shadow-btn-3d:0 0.1rem 0 #c8d3e1;--shadow-btn-3d-tap:0 0.025rem 0 #c8d3e1;--r-pill:24.975rem;--r-xl:1.1rem;--r-lg:1rem;--r-md:0.6rem;--r-sm:0.4rem;--motion-fast:180ms cubic-bezier(0.2,0.7,0.2,1);--motion-mid:320ms cubic-bezier(0.2,0.7,0.2,1)}@font-face{font-display:swap;font-family:Noto Sans SC;font-style:normal;font-weight:900;src:url(/static/fonts/assets/fonts/NotoSansSC-Black.woff2) format("woff2");unicode-range:U+4e00-9fff,U+3000-303f,U+ff00-ffef,U+30??}@font-face{font-display:swap;font-family:Inter;font-style:normal;font-weight:100 900;src:url(/static/fonts/assets/fonts/InterVariable.woff2) format("woff2-variations")}body,html{background:#e8e6ec;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,system-ui,sans-serif;margin:0;padding:0;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{background:var(--bg);margin:0 auto;max-width:480PX;min-height:100vh;overflow-x:hidden;position:relative}*{-webkit-box-sizing:border-box;box-sizing:border-box}taro-button-core{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,system-ui,sans-serif}.taro-textarea-element > taro-textarea-core,taro-textarea-core{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Inter,Noto Sans SC,system-ui,sans-serif!important}.taro-textarea,taro-textarea{scroll-margin-bottom:.5rem}@-webkit-keyframes float-in{0%{opacity:0;-webkit-transform:translateY(.6rem);transform:translateY(.6rem)}100%{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}@keyframes float-in{0%{opacity:0;-webkit-transform:translateY(.6rem);transform:translateY(.6rem)}100%{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}@-webkit-keyframes sage-bob{0%,100%{-webkit-transform:translateY(0);transform:translateY(0)}50%{-webkit-transform:translateY(-.2rem);transform:translateY(-.2rem)}}@keyframes sage-bob{0%,100%{-webkit-transform:translateY(0);transform:translateY(0)}50%{-webkit-transform:translateY(-.2rem);transform:translateY(-.2rem)}}@-webkit-keyframes confetti-burst{0%{opacity:0;-webkit-transform:scale(.6);transform:scale(.6)}40%{opacity:1;-webkit-transform:scale(1.05);transform:scale(1.05)}100%{opacity:0;-webkit-transform:scale(1.6);transform:scale(1.6)}}@keyframes confetti-burst{0%{opacity:0;-webkit-transform:scale(.6);transform:scale(.6)}40%{opacity:1;-webkit-transform:scale(1.05);transform:scale(1.05)}100%{opacity:0;-webkit-transform:scale(1.6);transform:scale(1.6)}}