[data-theme=light]{--lang-zh:#7c3aed;--lang-zh-strong:#6d28d9;--lang-en:#111827;--lang-am:#1e40af}[data-theme=dark]{--lang-zh:#c4b5fd;--lang-zh-strong:#a78bfa;--lang-en:#f8fafc;--lang-am:#60a5fa}.chinese,.lang-zh,[data-lang=zh],[lang=zh-CN],[lang=zh],[lang^=zh-]{color:var(--lang-zh)!important;-webkit-text-fill-color:var(--lang-zh)!important}.english,.lang-en,[data-lang=en],[lang=en]{color:var(--lang-en)!important;-webkit-text-fill-color:var(--lang-en)!important}.amharic,.lang-am,[data-lang=am],[lang=am]{color:var(--lang-am)!important;-webkit-text-fill-color:var(--lang-am)!important;text-shadow:none!important;opacity:1!important}.auth-phone b,.basic-card p span,.example-card b,.grammar-example strong,.practice-card>strong,.sheet-example strong,.sheet-word strong,.speaker-right b,.street-sign,.translation-bubble b,.voice-result>span,.word-copy strong,.word-main strong{color:var(--lang-zh)!important;-webkit-text-fill-color:var(--lang-zh)!important}.practice-card>em,.sheet-word>span,.word-copy>div>span,.word-main>span{color:var(--lang-zh-strong)!important;-webkit-text-fill-color:var(--lang-zh-strong)!important}.auth-phone small,.example-card>div>em,.practice-card .meaning-grid>div:first-child b,.sheet-translations>div:first-child b,.speaker-left b,.translation-bubble>span,.voice-result>b,.word-en{color:var(--lang-en)!important;-webkit-text-fill-color:var(--lang-en)!important;opacity:1!important}.basic-card em[lang=am],.category-card small[lang=am],.challenge-list em[lang=am],.grammar-grid-new em[lang=am],.practice-card .meaning-grid>div:last-child b,.quiz-card em[lang=am],.sheet-translations>div:last-child b,.translation-bubble strong[lang=am],.translation-bubble>em,.voice-result>em,.word-am{color:var(--lang-am)!important;-webkit-text-fill-color:var(--lang-am)!important;text-shadow:none!important;opacity:1!important}[data-theme=light] .practice-card{color:var(--lang-en)!important}[data-theme=light] .practice-card .meaning-grid small,[data-theme=light] .practice-card .practice-label{color:#5b21b6!important;-webkit-text-fill-color:#5b21b6!important}[data-theme=dark] .practice-card .meaning-grid small,[data-theme=dark] .practice-card .practice-label{color:#ddd6fe!important;-webkit-text-fill-color:#ddd6fe!important}:root{--motion-fast:120ms;--motion-normal:190ms;--motion-slow:280ms;--ease-out:cubic-bezier(.2,.8,.2,1);--brand-purple:#7c3aed;--brand-purple-deep:#5b21b6;--brand-purple-soft:#f3e8ff;--brand-blue-deep:#1e40af;--brand-black:#111827;--success:#00897b;--warning:#b45309}[data-theme=dark]{--brand-purple:#c4b5fd;--brand-purple-deep:#ddd6fe;--brand-purple-soft:#2e1f4f;--brand-blue-deep:#93c5fd;--brand-black:#f8fafc;--success:#5eead4;--warning:#fcd34d}html{scroll-behavior:smooth;text-rendering:optimizeLegibility}body{overscroll-behavior-y:none}a,button,input,select,textarea{touch-action:manipulation}button{-moz-user-select:none;user-select:none;-webkit-user-select:none}.auth-card,.category-card,.cyber-modes>button,.detail-sheet,.grammar-grid-new>button,.quiz-card,.settings-list button,.word-row-new,button{transition:transform var(--motion-fast) var(--ease-out),box-shadow var(--motion-normal) var(--ease-out),border-color var(--motion-normal) var(--ease-out),background-color var(--motion-normal) var(--ease-out),color var(--motion-normal) var(--ease-out),opacity var(--motion-fast) ease!important}.category-card:active,.cyber-modes>button:active,.grammar-grid-new>button:active,.quiz-card:active,.settings-list button:active,.word-row-new:active,button:active{transform:scale(.975)!important}@media (hover:hover){.category-card:hover,.cyber-modes>button:hover,.grammar-grid-new>button:hover,.quiz-card:hover,.settings-list button:hover,.word-row-new:hover{transform:translateY(-2px)!important}}.basic-grid,.category-cards,.challenge-list,.conversation-preview,.grammar-grid-new,.learning-section,.quiz-grid,.settings-list,.word-list{content-visibility:auto;contain-intrinsic-size:auto 480px}img,svg{max-width:100%}.screen-wrap{animation-duration:var(--motion-slow)!important;will-change:opacity,transform}.bottom-nav,.desktop-sidebar,.menu-drawer,.mobile-header{transform:translateZ(0);-webkit-backface-visibility:hidden;backface-visibility:hidden}.auth-card,.basic-card,.category-card,.challenge-list article,.conversation-preview,.example-card,.grammar-grid-new>button,.practice-card,.profile-hero,.quiz-card,.settings-list button,.voice-console,.weekly-card,.word-row-new{box-shadow:0 10px 30px rgba(28,38,65,.08)!important}[data-theme=dark] .auth-card,[data-theme=dark] .basic-card,[data-theme=dark] .category-card,[data-theme=dark] .challenge-list article,[data-theme=dark] .conversation-preview,[data-theme=dark] .example-card,[data-theme=dark] .grammar-grid-new>button,[data-theme=dark] .practice-card,[data-theme=dark] .profile-hero,[data-theme=dark] .quiz-card,[data-theme=dark] .settings-list button,[data-theme=dark] .voice-console,[data-theme=dark] .weekly-card,[data-theme=dark] .word-row-new{box-shadow:0 14px 34px rgba(0,0,0,.24)!important}.basic-card p span,.chinese,.grammar-example strong,.lang-zh,.practice-card>strong,.sheet-example strong,.sheet-word strong,.speaker-right b,.street-sign,.translation-bubble b,.voice-result>span,.word-copy strong,.word-main strong,[data-lang=zh],[lang=zh]{color:var(--brand-purple)!important;-webkit-text-fill-color:var(--brand-purple)!important}.english,.example-card em,.lang-en,.meaning-grid>div:first-child b,.sheet-translations>div:first-child b,.speaker-left b,.translations>span:first-child,.voice-result>b,.word-copy .word-en,[data-lang=en]{color:var(--brand-black)!important;-webkit-text-fill-color:var(--brand-black)!important}.amharic,.lang-am,.meaning-grid>div:last-child b,.sheet-translations>div:last-child b,.translations>span:last-child,.voice-result em,.word-am,[data-lang=am],[lang=am]{color:var(--brand-blue-deep)!important;-webkit-text-fill-color:var(--brand-blue-deep)!important;text-shadow:none!important}.practice-card>em,.sheet-word>span,.word-copy>div span,.word-main>span{color:var(--brand-purple-deep)!important;-webkit-text-fill-color:var(--brand-purple-deep)!important}.auth-submit,.bottom-nav button.active .nav-icon,.category-scroll button.active,.desktop-nav button.active,.menu-avatar,.primary-action,.profile-avatar,.quiz-card>i{background:linear-gradient(135deg,var(--brand-purple),var(--brand-purple-deep))!important;border-color:transparent!important}.auth-submit,.category-scroll button.active,.menu-avatar,.primary-action,.profile-avatar,.quiz-card>i{color:#fff!important;-webkit-text-fill-color:#fff!important}[data-theme=dark] .auth-submit,[data-theme=dark] .category-scroll button.active,[data-theme=dark] .primary-action{color:#160b2c!important;-webkit-text-fill-color:#160b2c!important}.avatar-button,.bottom-nav button,.category-scroll button,.desktop-nav button,.hamburger-button,.icon-button,.menu-list button,.save-button,.theme-switch,.word-audio{min-height:44px}input,select,textarea{font-size:16px!important}.search-box input{font-size:14px!important}@media (max-width:560px){.screen-wrap{padding-left:14px!important;padding-right:14px!important}.auth-card,.conversation-preview,.practice-card,.voice-console{border-radius:22px!important}.category-cards{gap:9px!important}.word-row-new{min-height:76px}}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}@media (update:slow){.auth-orbit,.neural-grid,.orbit-line,.particle,.scan-line{animation:none!important}.bottom-nav,.copilot,.desktop-sidebar,.menu-drawer,.mobile-header,.translation-bubble{-webkit-backdrop-filter:none!important;backdrop-filter:none!important}}:root{--lb-ink:#08111f;--lb-navy:#0b1730;--lb-navy-2:#10264a;--lb-blue:#3578ff;--lb-cyan:#38d9d2;--lb-violet:#8b72ff;--lb-amber:#f4b85a;--lb-bg:#f3f7fc;--lb-card:#fff;--lb-text:#102039;--lb-muted:#6b7a90;--lb-line:#dde6f1;--lb-shadow:0 24px 70px rgba(18,43,77,.12)}.lb-icon{fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}.lb-kicker{display:block;color:#1b8d83;font-size:10px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.lb-brand{display:flex;align-items:center;gap:12px;color:inherit}.lb-brand-mark{display:grid;place-items:center;width:45px;height:45px;border-radius:15px;background:linear-gradient(145deg,var(--lb-cyan),var(--lb-blue) 58%,var(--lb-violet));color:#061322;font:900 25px Noto Sans SC,sans-serif;box-shadow:0 14px 32px rgba(56,181,218,.26)}.lb-brand strong{font-size:18px;letter-spacing:-.04em}.lb-brand strong span{color:#43d9cb}.lb-brand small{display:block;margin-top:3px;color:rgba(226,237,251,.58);font-size:10px}.lb-brand.compact .lb-brand-mark{width:40px;height:40px;border-radius:13px}.lb-brand.compact strong{font-size:16px}.lb-loading{min-height:100svh;display:grid;place-content:center;justify-items:center;grid-gap:17px;gap:17px;background:radial-gradient(circle at 20% 0,rgba(53,120,255,.16),transparent 32%),linear-gradient(145deg,#071120,#0a1d39);color:#dce9fa}.lb-loader-mark{display:grid;place-items:center;width:68px;height:68px;border-radius:22px;background:linear-gradient(145deg,var(--lb-cyan),var(--lb-blue),var(--lb-violet));color:#07111d;font:900 34px Noto Sans SC,sans-serif;box-shadow:0 24px 60px rgba(55,162,221,.3);animation:lbPulse 1.4s ease-in-out infinite}.lb-loading p{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:#9eb3ce}@keyframes lbPulse{50%{transform:scale(.94);opacity:.75}}.lb-auth-page{position:relative;min-height:100svh;display:grid;place-items:center;overflow:hidden;padding:28px;background:linear-gradient(135deg,#06101e,#0b1e3c 46%,#102b55);color:#fff;isolation:isolate}.lb-auth-page:before{content:"";position:absolute;inset:0;z-index:-2;background-image:linear-gradient(hsla(0,0%,100%,.024) 1px,transparent 0),linear-gradient(90deg,hsla(0,0%,100%,.024) 1px,transparent 0);background-size:46px 46px;-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent);mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent)}.lb-auth-orb{position:absolute;z-index:-1;border-radius:50%;filter:blur(3px);opacity:.7;animation:lbFloat 13s ease-in-out infinite}.lb-auth-orb.one{width:520px;height:520px;left:-220px;top:-220px;background:radial-gradient(circle,rgba(54,220,211,.58),rgba(55,121,255,.08) 70%,transparent)}.lb-auth-orb.two{width:560px;height:560px;right:-250px;bottom:-250px;background:radial-gradient(circle,rgba(89,112,255,.62),rgba(144,78,223,.09) 70%,transparent);animation-delay:-5s}@keyframes lbFloat{50%{transform:translate3d(22px,-16px,0) scale(1.04)}}.lb-auth-shell{display:grid;grid-template-columns:minmax(360px,.92fr) minmax(470px,1.08fr);width:min(1180px,100%);min-height:min(780px,calc(100svh - 56px));overflow:hidden;border:1px solid hsla(0,0%,100%,.13);border-radius:34px;background:hsla(0,0%,100%,.08);box-shadow:0 46px 120px rgba(0,0,0,.42),inset 0 1px hsla(0,0%,100%,.13);-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px)}.lb-auth-shell.otp-shell{width:min(1020px,100%);min-height:min(670px,calc(100svh - 56px))}.lb-auth-story{position:relative;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;padding:44px;background:linear-gradient(155deg,rgba(11,35,72,.97),rgba(8,24,51,.92));color:#fff}.lb-auth-story:after{content:"";position:absolute;width:380px;height:380px;right:-200px;top:25%;border-radius:50%;border:1px solid hsla(0,0%,100%,.12);box-shadow:0 0 0 44px hsla(0,0%,100%,.026),0 0 0 92px hsla(0,0%,100%,.017)}.lb-story-copy{position:relative;z-index:2;max-width:510px}.lb-badge{display:inline-flex;align-items:center;gap:9px;padding:8px 12px;border:1px solid rgba(114,236,218,.22);border-radius:999px;background:rgba(55,219,197,.09);color:#b7faef;font-size:10px;font-weight:900;letter-spacing:.07em;text-transform:uppercase}.lb-badge i{width:7px;height:7px;border-radius:50%;background:#51e3c9;box-shadow:0 0 0 5px rgba(81,227,201,.12)}.lb-auth-story h1{max-width:620px;margin:25px 0 18px;font-size:clamp(40px,4.7vw,67px);line-height:.99;letter-spacing:-.06em}.lb-auth-story p{max-width:520px;margin:0;color:rgba(227,238,252,.72);font-size:15px;line-height:1.8}.lb-auth-story p strong{color:#fff}.lb-story-features{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px;margin-top:38px}.lb-story-features>div{display:grid;grid-template-columns:38px 1fr;grid-template-rows:auto auto;grid-gap:2px 11px;gap:2px 11px;padding:15px;border:1px solid hsla(0,0%,100%,.09);border-radius:17px;background:hsla(0,0%,100%,.05)}.lb-story-features span{grid-row:1/3;display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,rgba(57,218,201,.18),rgba(53,120,255,.2));color:#72ead8;font-size:10px;font-weight:900}.lb-story-features strong{font-size:12px}.lb-story-features small{color:rgba(222,234,249,.55);font-size:9px}.lb-story-footer{position:relative;z-index:2;color:rgba(222,234,249,.5);font-size:9px;font-weight:800;letter-spacing:.13em}.lb-auth-card{display:flex;flex-direction:column;justify-content:center;padding:42px 50px;background:rgba(252,254,255,.98);color:var(--lb-text);overflow:auto}.lb-mobile-brand{display:none}.lb-auth-card h2{margin:8px 0 9px;color:#0a1729;font-size:clamp(31px,3vw,45px);line-height:1.04;letter-spacing:-.05em}.lb-auth-intro{margin:0 0 22px;color:#64758c;font-size:13px;line-height:1.65}.lb-auth-tabs{display:grid;grid-template-columns:1fr 1fr;grid-gap:7px;gap:7px;margin-bottom:17px;padding:5px;border:1px solid #dce6ef;border-radius:15px;background:#f3f7fa}.lb-auth-tabs button{border:0;border-radius:11px;background:transparent;color:#748298;padding:10px;font-weight:800;cursor:pointer}.lb-auth-tabs button.active{background:#fff;color:#0d755f;box-shadow:0 6px 18px rgba(31,74,95,.09)}.lb-social-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px}.lb-social-grid button{display:flex;align-items:center;justify-content:center;gap:10px;min-height:50px;border:1px solid #d9e2eb;border-radius:14px;background:#fff;color:#182537;font-size:11px;font-weight:800;cursor:pointer;transition:.2s}.lb-social-grid button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 25px rgba(32,54,83,.1)}.lb-social-grid button.apple{background:#090909;border-color:#090909;color:#fff}.lb-social-grid button:disabled{opacity:.45;cursor:not-allowed}.lb-social-icon{width:20px;height:20px}.lb-divider{display:flex;align-items:center;gap:10px;margin:17px 0;color:#8a98aa;font-size:9px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.lb-divider:after,.lb-divider:before{content:"";height:1px;flex:1 1;background:#e1e8ef}.lb-auth-form{display:grid;grid-gap:13px;gap:13px}.lb-auth-form label{display:grid;grid-gap:7px;gap:7px}.lb-auth-form label>span{color:#2f4058;font-size:10px;font-weight:850;letter-spacing:.035em}.lb-phone-grid{display:grid;grid-template-columns:minmax(180px,.82fr) minmax(220px,1.18fr);grid-gap:12px;gap:12px}.lb-field{position:relative;display:flex;align-items:center;min-height:51px;border:1px solid #d9e3ed;border-radius:14px;background:#fff;box-shadow:0 5px 18px rgba(16,31,55,.035);transition:.2s}.lb-field:focus-within{border-color:#35baa2;box-shadow:0 0 0 4px rgba(53,186,162,.11),0 12px 26px rgba(25,117,101,.07);transform:translateY(-1px)}.lb-field input,.lb-field select{width:100%;min-width:0;border:0;outline:0;background:transparent;color:#13223a;padding:14px;font:inherit;font-size:13px}.lb-field input::placeholder{color:#a0adbd}.lb-country-field{padding-left:39px}.lb-country-field>b{position:absolute;left:13px;font-size:17px}.lb-country-field select{-webkit-appearance:none;-moz-appearance:none;appearance:none;padding-right:32px;font-weight:750}.lb-country-field:after{content:"⌄";position:absolute;right:13px;color:#7a8798}.lb-phone-field{padding-left:65px}.lb-phone-field>b{position:absolute;left:13px;color:#187766;font-size:12px}.lb-phone-field:after{content:"";position:absolute;left:55px;width:1px;height:23px;background:#e0e8ef}.lb-phone-field input{padding-left:15px;letter-spacing:.045em;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.lb-phone-help{margin-top:-7px;color:#77879a;font-size:9px;line-height:1.5}.lb-password-toggle{position:absolute;right:8px;border:0;border-radius:9px;background:#eef5f5;color:#1d7969;padding:7px 9px;font-size:9px;font-weight:850;cursor:pointer}.lb-valid{position:absolute;right:13px;display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:#dcf7ef;color:#12806b}.lb-primary-button{display:flex;align-items:center;justify-content:space-between;min-height:53px;margin-top:2px;border:0;border-radius:15px;background:linear-gradient(110deg,#11967d,#2874ed 64%,#785fe8);color:#fff;padding:0 18px;font-size:12px;font-weight:900;letter-spacing:.02em;box-shadow:0 16px 30px rgba(23,120,155,.22);cursor:pointer;transition:.2s}.lb-primary-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 21px 38px rgba(23,120,155,.28)}.lb-primary-button:disabled{opacity:.48;cursor:not-allowed}.lb-auth-error,.lb-auth-warning{margin-bottom:13px;padding:11px 13px;border-radius:12px;font-size:10px;line-height:1.55}.lb-auth-error{border:1px solid #fecdd6;background:#fff1f3;color:#b82443}.lb-auth-warning{border:1px solid #fed7aa;background:#fff8ea;color:#9a5414}.lb-legal{margin:15px 0 0;color:#8a98a8;font-size:9px;line-height:1.5;text-align:center}.lb-back-button{align-self:flex-start;margin-bottom:28px;border:0;background:transparent;color:#187966;font-size:10px;font-weight:850;cursor:pointer}.lb-otp-input{text-align:center;font-size:28px!important;font-weight:900!important;letter-spacing:.35em;padding-left:calc(14px + .35em)!important}.lb-app-shell{min-height:100svh;display:grid;grid-template-columns:252px minmax(0,1fr);background:radial-gradient(circle at 11% 0,rgba(53,120,255,.13),transparent 30%),radial-gradient(circle at 92% 7%,rgba(56,217,210,.11),transparent 27%),linear-gradient(180deg,#edf4fb,#f7f9fc 48%,#f1f5f9);color:var(--lb-text)}.lb-sidebar{position:-webkit-sticky;position:sticky;top:0;z-index:40;display:flex;flex-direction:column;height:100svh;padding:25px 18px 20px;background:linear-gradient(180deg,#071525,#0a1c34 58%,#0a203d);color:#fff;border-right:1px solid hsla(0,0%,100%,.07);box-shadow:18px 0 50px rgba(5,17,32,.12)}.lb-sidebar-head{display:flex;align-items:center;justify-content:space-between;padding:3px 6px 24px;margin-bottom:16px;border-bottom:1px solid hsla(0,0%,100%,.075)}.lb-sidebar-head>button{display:none;border:0;background:none;color:#fff;font-size:28px}.lb-sidebar nav{display:grid;grid-gap:6px;gap:6px}.lb-sidebar nav button{position:relative;display:flex;align-items:center;gap:13px;min-height:47px;border:1px solid transparent;border-radius:13px;background:transparent;color:#9dafc7;padding:0 14px;text-align:left;font-size:12px;font-weight:750;cursor:pointer;transition:.2s}.lb-sidebar nav button:hover{transform:translateX(2px);background:hsla(0,0%,100%,.055);color:#fff}.lb-sidebar nav button.active{border-color:rgba(88,221,198,.15);background:linear-gradient(90deg,rgba(42,191,164,.18),rgba(52,116,240,.13));color:#fff;box-shadow:inset 3px 0 #46d8bd}.lb-sidebar nav button>i{position:absolute;right:13px;width:6px;height:6px;border-radius:50%;background:#56e0c6;box-shadow:0 0 0 5px rgba(86,224,198,.09)}.lb-daily-card{margin-top:auto;padding:16px;border:1px solid hsla(0,0%,100%,.085);border-radius:18px;background:linear-gradient(145deg,rgba(38,183,162,.14),rgba(55,112,232,.13))}.lb-daily-card>span{display:grid;place-items:center;width:35px;height:35px;border-radius:11px;background:hsla(0,0%,100%,.09);color:#69e6d0}.lb-daily-card small,.lb-daily-card strong{display:block}.lb-daily-card strong{margin-top:12px;font-size:12px}.lb-daily-card small{margin-top:4px;color:#90a7c2;font-size:9px}.lb-daily-card>i{display:block;height:4px;margin-top:13px;border-radius:99px;background:hsla(0,0%,100%,.1);overflow:hidden}.lb-daily-card>i b{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#4bddc4,#4a85ff)}.lb-sidebar-profile{display:grid;grid-template-columns:39px 1fr 18px;align-items:center;grid-gap:10px;gap:10px;margin-top:12px;border:0;border-radius:14px;background:hsla(0,0%,100%,.045);color:#fff;padding:10px;text-align:left;cursor:pointer}.lb-sidebar-profile>span{display:grid;place-items:center;width:39px;height:39px;border-radius:12px;background:linear-gradient(145deg,#dff9f3,#dfe9ff);color:#137766;font-size:10px;font-weight:900}.lb-sidebar-profile small,.lb-sidebar-profile strong{display:block}.lb-sidebar-profile strong{font-size:11px}.lb-sidebar-profile small{margin-top:3px;color:#8098b4;font-size:8px}.lb-workspace{min-width:0;padding:18px 28px 40px}.lb-topbar{position:-webkit-sticky;position:sticky;top:14px;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px;padding:16px 18px 16px 21px;border:1px solid rgba(198,213,229,.86);border-radius:21px;background:rgba(250,253,255,.86);box-shadow:0 18px 48px rgba(26,49,78,.1);-webkit-backdrop-filter:blur(22px) saturate(1.3);backdrop-filter:blur(22px) saturate(1.3)}.lb-topbar-copy h1{margin:4px 0 0;color:#0a1728;font-size:clamp(24px,2.4vw,35px);line-height:1;letter-spacing:-.045em}.lb-topbar-actions{display:flex;align-items:center;gap:9px}.lb-live-status{display:flex;align-items:center;gap:7px;padding:8px 11px;border:1px solid #d7e7e4;border-radius:999px;background:#f2faf8;color:#267365;font-size:9px;font-weight:850}.lb-live-status i{width:7px;height:7px;border-radius:50%;background:#23b997;box-shadow:0 0 0 5px rgba(35,185,151,.1)}.lb-avatar-button,.lb-menu-button,.lb-search-button{display:grid;place-items:center;width:41px;height:41px;border:1px solid #dce5ee;border-radius:12px;background:#fff;color:#4d6076;cursor:pointer}.lb-avatar-button{border-color:#cfe5e2;background:linear-gradient(145deg,#e1faf5,#e6edff);color:#167666;font-size:10px;font-weight:900}.lb-menu-button{display:none}.lb-menu-button span{width:17px;height:2px;border-radius:9px;background:#17334d}.lb-content{width:min(1240px,100%);margin:auto}.lb-hero-panel{position:relative;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(240px,.5fr);align-items:center;min-height:315px;overflow:hidden;padding:38px;border:1px solid hsla(0,0%,100%,.18);border-radius:28px;background:linear-gradient(135deg,#07172b,#0c2a4d 55%,#153d73);color:#fff;box-shadow:0 30px 70px rgba(10,35,72,.2)}.lb-hero-panel:after{content:"";position:absolute;right:-160px;top:-150px;width:460px;height:460px;border-radius:50%;border:1px solid hsla(0,0%,100%,.1);box-shadow:0 0 0 52px hsla(0,0%,100%,.025),0 0 0 102px hsla(0,0%,100%,.017)}.lb-hero-copy{position:relative;z-index:2}.lb-hero-copy h2{max-width:720px;margin:10px 0 12px;font-size:clamp(36px,4.6vw,64px);line-height:1;letter-spacing:-.06em}.lb-hero-copy p{max-width:560px;color:#aebdd0;font-size:14px;line-height:1.7}.lb-hero-actions{display:flex;gap:11px;margin-top:25px}.lb-hero-actions button{display:flex;align-items:center;gap:10px;min-height:48px;border:0;border-radius:14px;background:linear-gradient(110deg,#42dbc2,#397cff);color:#071523;padding:0 17px;font-size:11px;font-weight:900;cursor:pointer}.lb-hero-actions button.secondary{border:1px solid hsla(0,0%,100%,.13);background:hsla(0,0%,100%,.07);color:#fff}.lb-hero-orbit{position:relative;z-index:2;display:grid;justify-items:center}.lb-hero-orbit>div{position:relative;display:grid;place-items:center;width:170px;height:170px;border:1px solid rgba(98,231,214,.25);border-radius:50%;box-shadow:0 0 0 28px rgba(76,206,195,.045),0 0 0 58px rgba(64,125,236,.025)}.lb-hero-orbit span{display:grid;place-items:center;width:88px;height:88px;border-radius:29px;background:linear-gradient(145deg,#45ddc3,#3b7cff,#8c6df1);color:#071423;font:900 46px Noto Sans SC,sans-serif;box-shadow:0 25px 55px rgba(34,140,195,.35)}.lb-hero-orbit i{position:absolute;right:12px;top:29px;width:11px;height:11px;border-radius:50%;background:#62ead5;box-shadow:0 0 0 7px rgba(98,234,213,.09)}.lb-hero-orbit small{margin-top:22px;color:#7f9ebd;font-size:8px;font-weight:900;letter-spacing:.14em}.lb-command-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:13px;gap:13px;margin-top:16px}.lb-command-grid>button{display:grid;grid-template-columns:46px 1fr 20px;align-items:center;grid-gap:12px;gap:12px;min-height:88px;border:1px solid rgba(207,220,234,.86);border-radius:19px;background:linear-gradient(145deg,hsla(0,0%,100%,.98),rgba(249,252,255,.91));box-shadow:0 14px 36px rgba(26,52,82,.06);padding:14px;text-align:left;color:var(--lb-text);cursor:pointer;transition:.22s}.lb-command-grid>button:hover{transform:translateY(-3px);box-shadow:0 22px 46px rgba(26,52,82,.1)}.lb-command-grid>button>span{display:grid;place-items:center;width:46px;height:46px;border-radius:14px}.lb-command-grid .cyan{background:#def8f5;color:#188576}.lb-command-grid .violet{background:#eeeaff;color:#735ad3}.lb-command-grid .amber{background:#fff2dd;color:#b6761d}.lb-command-grid small,.lb-command-grid strong{display:block}.lb-command-grid strong{font-size:12px}.lb-command-grid small{margin-top:4px;color:#718198;font-size:9px}.lb-section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:15px;margin:29px 2px 14px}.lb-section-title span{color:#218979;font-size:8px;font-weight:900;letter-spacing:.13em}.lb-section-title h3{margin-top:5px;font-size:22px;letter-spacing:-.04em}.lb-section-title button{display:flex;align-items:center;gap:6px;border:0;background:transparent;color:#2777d8;font-size:10px;font-weight:850;cursor:pointer}.lb-lesson-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:12px;gap:12px}.lb-lesson-grid>button{display:grid;grid-template-columns:46px 1fr;grid-gap:13px;gap:13px;min-height:166px;border:1px solid rgba(207,220,234,.84);border-radius:20px;background:hsla(0,0%,100%,.92);box-shadow:0 16px 40px rgba(24,49,79,.06);padding:17px;text-align:left;color:var(--lb-text);cursor:pointer;transition:.22s}.lb-lesson-grid>button:hover{transform:translateY(-4px);border-color:#badfd9;box-shadow:0 24px 48px rgba(24,49,79,.1)}.lb-lesson-icon{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;font:800 20px Noto Sans SC,sans-serif}.lb-lesson-icon.cyan{background:#ddf8f4;color:#168678}.lb-lesson-icon.violet{background:#eeeaff;color:#725bd2}.lb-lesson-icon.amber{background:#fff1dc;color:#b7761d}.lb-lesson-icon.blue{background:#e4efff;color:#3971cb}.lb-lesson-grid em,.lb-lesson-grid small,.lb-lesson-grid strong{display:block}.lb-lesson-grid strong{font-size:12px;line-height:1.35}.lb-lesson-grid small{min-height:32px;margin-top:6px;color:#78889c;font-size:9px;line-height:1.5}.lb-lesson-grid i{display:block;height:4px;margin-top:15px;border-radius:9px;background:#e7edf3;overflow:hidden}.lb-lesson-grid i b{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#37c9b1,#4a7ff2)}.lb-lesson-grid em{margin-top:7px;color:#8090a3;font-size:8px;font-style:normal}.lb-phrase-list{display:grid;grid-gap:9px;gap:9px}.lb-phrase-card{display:grid;grid-template-columns:44px minmax(110px,.7fr) minmax(180px,1.3fr) 38px;align-items:center;grid-gap:13px;gap:13px;min-height:75px;border:1px solid rgba(207,220,234,.85);border-radius:18px;background:hsla(0,0%,100%,.93);box-shadow:0 12px 30px rgba(24,49,79,.045);padding:12px 14px}.lb-save-button,.lb-sound-button{display:grid;place-items:center;width:39px;height:39px;border:0;border-radius:12px;background:#e1f7f3;color:#168576;cursor:pointer}.lb-save-button{background:#f1f4f7;color:#8a98a9}.lb-save-button.saved{background:#e8efff;color:#3872d4}.lb-phrase-main span,.lb-phrase-main strong,.lb-phrase-meaning b,.lb-phrase-meaning small{display:block}.lb-phrase-main strong{font:800 20px Noto Sans SC,sans-serif}.lb-phrase-main span{margin-top:2px;color:#198474;font-size:9px}.lb-phrase-meaning b{font-size:11px}.lb-phrase-meaning small{margin-top:4px;color:#687a90;font:700 10px Noto Sans Ethiopic,sans-serif;line-height:1.45}.lb-page-heading{margin:7px 0 24px}.lb-page-heading h2{max-width:720px;margin:8px 0;font-size:clamp(34px,4vw,55px);line-height:1;letter-spacing:-.055em}.lb-page-heading p{color:#6c7e94;font-size:13px}.lb-search{display:flex;align-items:center;gap:11px;min-height:58px;margin-bottom:15px;border:1px solid #d7e2ec;border-radius:17px;background:#fff;box-shadow:0 12px 32px rgba(23,48,78,.06);padding:0 15px;color:#7d8da1}.lb-search input{min-width:0;flex:1 1;border:0;outline:0;background:transparent;color:#102039;font:inherit;font-size:12px}.lb-search button{border:0;border-radius:10px;background:#eef3f7;color:#53657b;padding:7px 10px;font-size:9px;font-weight:800;cursor:pointer}.lb-voice-studio{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-bottom:22px;padding:22px;border-radius:22px;background:linear-gradient(135deg,#0a1930,#102d52);color:#fff;box-shadow:0 20px 50px rgba(11,38,77,.16)}.lb-voice-studio h3{margin:6px 0;font-size:24px;letter-spacing:-.04em}.lb-voice-studio p{color:#91a6c0;font-size:10px}.lb-voice-studio>button{display:grid;grid-template-columns:45px auto;grid-template-rows:auto auto;align-items:center;grid-gap:2px 11px;gap:2px 11px;min-width:220px;border:1px solid hsla(0,0%,100%,.1);border-radius:15px;background:hsla(0,0%,100%,.06);color:#fff;padding:10px;text-align:left;cursor:pointer}.lb-voice-studio>button>span{grid-row:1/3;display:grid;place-items:center;width:45px;height:45px;border-radius:14px;background:linear-gradient(145deg,#40d8bf,#3b7cff)}.lb-voice-studio>button strong{font-size:11px}.lb-voice-studio>button small{color:#86a0bc;font-size:8px}.lb-result-meta{display:flex;justify-content:space-between;margin:18px 2px 10px;font-size:10px}.lb-result-meta span{color:#7c8b9d}.lb-learning-layout{display:grid;grid-template-columns:minmax(270px,.72fr) minmax(380px,1.28fr);grid-gap:16px;gap:16px}.lb-course-list{display:grid;align-content:start;grid-gap:9px;gap:9px}.lb-course-list>button{display:grid;grid-template-columns:45px 1fr auto;align-items:center;grid-gap:12px;gap:12px;border:1px solid #d8e3ed;border-radius:17px;background:hsla(0,0%,100%,.92);padding:13px;text-align:left;color:var(--lb-text);cursor:pointer}.lb-course-list>button.active{border-color:#9edbd0;background:linear-gradient(145deg,#f4fffc,#f5f8ff);box-shadow:0 14px 30px rgba(31,100,112,.08)}.lb-course-list small,.lb-course-list strong{display:block}.lb-course-list strong{font-size:11px}.lb-course-list small{margin-top:4px;color:#75869a;font-size:8px;line-height:1.4}.lb-course-list em{color:#2a8a78;font-size:9px;font-style:normal;font-weight:850}.lb-practice-panel{padding:27px;border-radius:25px;background:linear-gradient(145deg,#09182e,#102d52);color:#fff;box-shadow:0 24px 60px rgba(11,38,77,.2)}.lb-practice-top{display:flex;justify-content:space-between;color:#80a0be;font-size:8px;font-weight:850;text-transform:uppercase;letter-spacing:.08em}.lb-character{text-align:center;margin:30px 0 2px;font:900 clamp(70px,9vw,112px) Noto Sans SC,sans-serif}.lb-pinyin{text-align:center;color:#65dfca;font-size:15px}.lb-play-phrase{display:flex;align-items:center;gap:9px;margin:22px auto;border:1px solid hsla(0,0%,100%,.11);border-radius:13px;background:hsla(0,0%,100%,.06);color:#fff;padding:9px 13px;font-size:9px;font-weight:800;cursor:pointer}.lb-meaning-grid{display:grid;grid-template-columns:1fr 1fr;margin:20px 0;border-top:1px solid hsla(0,0%,100%,.1);border-bottom:1px solid hsla(0,0%,100%,.1)}.lb-meaning-grid>div{padding:17px;text-align:center}.lb-meaning-grid>div+div{border-left:1px solid hsla(0,0%,100%,.1)}.lb-meaning-grid small{display:block;color:#839bb5;font-size:7px;font-weight:900;letter-spacing:.12em}.lb-meaning-grid strong{display:block;margin-top:7px;font-size:11px;line-height:1.5}.lb-profile-grid{display:grid;grid-template-columns:minmax(280px,.72fr) minmax(420px,1.28fr);grid-gap:16px;gap:16px}.lb-profile-card,.lb-progress-card{border:1px solid #d7e2ec;border-radius:24px;background:hsla(0,0%,100%,.94);box-shadow:0 18px 45px rgba(23,48,78,.07);padding:27px}.lb-profile-card{text-align:center}.lb-profile-avatar{display:grid;place-items:center;width:82px;height:82px;margin:auto;border-radius:25px;background:linear-gradient(145deg,#dff9f4,#e1eaff);color:#167666;font-size:20px;font-weight:900}.lb-profile-card h3{margin:16px 0 5px;font-size:23px}.lb-profile-card p{color:#738398;font-size:10px}.lb-profile-card>span{display:inline-flex;align-items:center;gap:7px;margin-top:16px;padding:7px 10px;border-radius:999px;background:#eff9f7;color:#277567;font-size:8px;font-weight:850}.lb-profile-card>span i{width:7px;height:7px;border-radius:50%;background:#2aba99}.lb-profile-card button{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:46px;margin-top:22px;border:1px solid #f0ced5;border-radius:13px;background:#fff7f8;color:#b63e54;font-size:10px;font-weight:850;cursor:pointer}.lb-progress-card h3{margin:7px 0 24px;font-size:27px;letter-spacing:-.04em}.lb-progress-stats{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:10px;gap:10px}.lb-progress-stats>div{padding:15px;border:1px solid #e0e8f0;border-radius:15px;background:#f8fafc}.lb-progress-stats small,.lb-progress-stats strong{display:block}.lb-progress-stats strong{font-size:21px}.lb-progress-stats small{margin-top:4px;color:#7b8a9d;font-size:8px}.lb-week-bars{display:flex;align-items:flex-end;gap:10px;height:150px;margin-top:25px;border-bottom:1px solid #e1e8ef}.lb-week-bars>i{position:relative;flex:1 1;min-height:12px;border-radius:8px 8px 2px 2px;background:linear-gradient(180deg,#43d5bc,#3c7df1)}.lb-week-bars b{position:absolute;left:0;right:0;bottom:-22px;color:#8290a2;font-size:8px;font-style:normal;text-align:center}.lb-empty{padding:55px;border:1px dashed #cddae7;border-radius:23px;background:hsla(0,0%,100%,.65);text-align:center}.lb-empty>span{display:grid;place-items:center;width:65px;height:65px;margin:auto;border-radius:21px;background:linear-gradient(145deg,#e1faf5,#e3ebff);color:#167666;font:900 30px Noto Sans SC,sans-serif}.lb-empty h3{margin:16px 0 6px}.lb-empty p{color:#748499;font-size:10px}.lb-bottom-nav,.lb-menu-backdrop{display:none}@media(max-width:1120px){.lb-lesson-grid{grid-template-columns:repeat(2,1fr)}.lb-command-grid{grid-template-columns:1fr}.lb-auth-shell{grid-template-columns:minmax(320px,.8fr) minmax(440px,1.2fr)}}@media(max-width:900px){.lb-auth-page{padding:18px}.lb-auth-shell,.lb-auth-shell.otp-shell{grid-template-columns:1fr;width:min(700px,100%);min-height:auto}.lb-auth-story{display:none}.lb-auth-card{min-height:calc(100svh - 36px);padding:35px;border-radius:28px}.lb-mobile-brand{display:block;margin-bottom:30px;color:#0b1930}.lb-mobile-brand .lb-brand small{color:#718096}.lb-app-shell{display:block}.lb-sidebar{position:fixed;left:0;top:0;width:270px;transform:translateX(-105%);transition:.25s;box-shadow:30px 0 80px rgba(0,0,0,.3)}.lb-sidebar.open{transform:none}.lb-sidebar-head>button{display:block}.lb-menu-backdrop{position:fixed;inset:0;z-index:35;display:block;border:0;background:rgba(5,17,31,.46);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.lb-workspace{padding:14px 16px 95px}.lb-topbar{top:10px}.lb-menu-button{display:grid}.lb-hero-panel,.lb-learning-layout,.lb-profile-grid{grid-template-columns:1fr}.lb-hero-orbit{display:none}.lb-bottom-nav{position:fixed;left:12px;right:12px;bottom:12px;z-index:34;display:grid;grid-template-columns:repeat(5,1fr);padding:7px;border:1px solid rgba(198,213,229,.9);border-radius:19px;background:rgba(250,253,255,.92);box-shadow:0 20px 55px rgba(25,48,78,.18);-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px)}.lb-bottom-nav button{display:grid;justify-items:center;grid-gap:4px;gap:4px;border:0;border-radius:13px;background:transparent;color:#8291a3;padding:7px 3px;font-size:7px;font-weight:800}.lb-bottom-nav button.active{background:#eaf2ff;color:#2873d6}}@media(max-width:650px){.lb-auth-page{padding:0;background:#f8fbfd}.lb-auth-orb,.lb-auth-page:before{display:none}.lb-auth-shell,.lb-auth-shell.otp-shell{min-height:100svh;border:0;border-radius:0;background:#fff;box-shadow:none}.lb-auth-card{min-height:100svh;border-radius:0;padding:24px 18px 32px}.lb-auth-card h2{font-size:34px}.lb-phone-grid,.lb-social-grid{grid-template-columns:1fr}.lb-social-grid button{min-height:49px}.lb-workspace{padding:10px 11px 92px}.lb-topbar{top:7px;padding:12px;border-radius:17px}.lb-topbar-copy h1{font-size:22px}.lb-live-status,.lb-search-button{display:none}.lb-content{padding-top:4px}.lb-hero-panel{min-height:300px;padding:25px;border-radius:22px}.lb-hero-copy h2{font-size:40px}.lb-hero-actions{align-items:stretch;flex-direction:column}.lb-command-grid{gap:9px}.lb-lesson-grid{grid-template-columns:1fr}.lb-phrase-card{grid-template-columns:40px 1fr 38px}.lb-phrase-meaning{grid-column:2/4;padding-top:9px;border-top:1px solid #e7edf3}.lb-page-heading h2{font-size:40px}.lb-voice-studio{align-items:stretch;flex-direction:column}.lb-voice-studio>button{min-width:0}.lb-progress-stats{grid-template-columns:1fr 1fr}.lb-progress-stats>div:last-child{grid-column:1/-1}.lb-meaning-grid{grid-template-columns:1fr}.lb-meaning-grid>div+div{border-left:0;border-top:1px solid hsla(0,0%,100%,.1)}}@media(prefers-reduced-motion:reduce){.lb-auth-orb,.lb-loader-mark{animation:none}.lb-command-grid>button,.lb-field,.lb-lesson-grid>button,.lb-primary-button,.lb-sidebar{transition:none}}