@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap');
:root{--ink:#253a35;--muted:#84908a;--green:#286b5d;--dark:#205b50;--mint:#e8f0e9;--bg:#f7f8f5;--line:#e7eae4;--white:#fff;--gold:#b18e55;--font:'DM Sans','Noto Sans SC',system-ui,sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.7 var(--font);-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button{color:inherit}a{color:inherit;text-decoration:none}button{border:0;background:none}button:disabled{cursor:default;opacity:.65}a,button,input,select{outline-offset:4px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--green)}input:focus{outline:none}h1,h2,h3,p{margin:0}svg.icon{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;vertical-align:middle}button svg,a svg{pointer-events:none}.skip-link{position:absolute;top:-100px;left:20px;z-index:50;background:white;padding:10px}.skip-link:focus{top:10px}
.sidebar{width:228px;position:fixed;inset:0 auto 0 0;background:#fff;border-right:1px solid var(--line);padding:35px 21px 0;display:flex;flex-direction:column;z-index:20}.brand{display:flex;gap:11px;align-items:center;padding:0 8px 44px;font-size:32px;letter-spacing:-1.8px;font-weight:700;line-height:1}.brand-dot{color:#4d8a62}.brand small{display:block;font-size:10px;letter-spacing:.3px;color:#8a938b;font-weight:400;line-height:1.5;margin-top:9px}.brand-mark{display:flex;align-items:center;justify-content:center;width:37px;height:42px;border-radius:12px 12px 12px 3px;background:var(--green);color:white;letter-spacing:-1px;font-family:Georgia,serif;font-size:31px}.brand-mark span{color:#d7e3b4;font-size:27px;transform:translateY(3px)}.nav-label{font-size:10px;letter-spacing:1.6px;color:#9da49d;padding:0 14px;margin-bottom:15px}.sidebar nav{display:flex;flex-direction:column;gap:8px}.sidebar nav a{display:flex;align-items:center;gap:12px;border-radius:7px;padding:12px 14px;color:#758079;font-size:13px;position:relative;transition:background .2s,color .2s}.sidebar nav a:hover{background:#f5f7f3;color:var(--green)}.sidebar nav a.active{background:#eaf2ed;color:var(--green);font-weight:600}.nav-small{margin-left:auto;font-size:10px;line-height:20px;min-width:21px;text-align:center;border-radius:4px;background:#f0f3ee;color:#7a8c7e}.nav-active-dot{margin-left:auto;width:5px;height:5px;background:var(--green);border-radius:100%;display:none}.active .nav-active-dot{display:block}.sidebar-bottom{margin-top:auto}.little-note{margin:28px 7px 26px;border:1px solid #e8ece3;background:#f9faf6;border-radius:9px;padding:19px 17px}.little-note>.icon{color:#698774;width:28px;height:28px;margin-bottom:10px}.little-note p{font-family:Georgia,serif;font-style:italic;line-height:1.6;font-size:15px;color:#627762}.little-note small{display:block;font-size:10px;color:#9aa391;margin-top:10px}.profile{border-top:1px solid var(--line);display:flex;align-items:center;gap:10px;padding:21px 2px}.avatar{width:34px;height:34px;display:grid;place-items:center;background:#e9eee0;color:#7a8a53;border-radius:50%;font-family:Georgia,serif}.profile strong{font-size:11px;font-weight:500;display:block}.profile small{font-size:9px;color:#9ba498;display:block}.online-dot{width:5px;height:5px;background:#76a185;border-radius:50%;margin-left:auto}.workspace{margin-left:228px}.topbar{height:79px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 44px;background:rgba(255,255,255,.7)}.breadcrumb{display:flex;gap:13px;font-size:11px;color:#8e9690}.breadcrumb strong{font-weight:500;color:#4d5d53}.slash{color:#c3c9c1}.topbar-right{display:flex;gap:23px;align-items:center}.date{font-size:11px;color:#8f998f}.streak{display:flex;align-items:center;gap:5px;font-size:11px;color:#b18c54}.streak svg{width:16px;height:16px}.small-avatar{width:29px;height:29px;display:grid;place-items:center;border:3px solid white;border-radius:50%;background:#e6ebdd;color:#738553;font-size:11px}main{max-width:1390px;margin:auto;padding:35px 44px 0;min-height:calc(100vh - 150px)}.page-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}.greeting{font-size:11px;color:#98a18f;margin-bottom:5px;letter-spacing:1px}.page-heading h1{font-size:27px;font-weight:600;letter-spacing:.5px;line-height:1.5}.page-heading p{font-size:12px;color:#8c958b;margin-top:6px}.edition{font-size:9px;letter-spacing:2px;color:#9bA793;border:1px solid #e1e6dc;border-radius:20px;padding:5px 12px;white-space:nowrap}.hero{position:relative;overflow:hidden;background:#e9f0e7;border:1px solid #e2ebdf;border-radius:12px;min-height:244px;padding:28px 33px 27px;margin-bottom:28px}.eyebrow{color:#688772;letter-spacing:2px;font-size:9px;font-weight:600}.hero h2{font-size:26px;letter-spacing:.7px;font-weight:600;margin:7px 0 6px;line-height:1.5}.hero h2 span{color:var(--green)}.hero-description{font-size:11px;color:#85907e}.hero-content{position:relative;z-index:1;max-width:620px;width:76%}.search-form{display:flex;align-items:center;gap:10px;background:white;border:1px solid #dfe7dc;border-radius:8px;box-shadow:0 4px 9px #38583b04;padding:7px 8px 7px 15px;margin-top:19px}.search-form>.icon{color:#869c8c;width:18px;height:18px}.search-form input{width:100%;min-width:0;border:0;background:transparent;color:var(--ink);font-size:12px;padding:7px 0}.search-form input::placeholder{color:#a2a99d}.search-form:focus-within{border-color:#88ac92;box-shadow:0 0 0 3px #286b5d0b}.search-submit{display:flex;align-items:center;gap:8px;padding:9px 17px;background:var(--green);color:white;border-radius:6px;white-space:nowrap;font-size:11px}.search-submit:hover,.primary:hover{background:#174a40}.search-submit .icon{width:14px;height:14px}.trending{display:flex;align-items:center;gap:10px;margin-top:12px;font-size:10px;color:#90a087;flex-wrap:wrap}.trending button{font-size:10px;border:1px solid #d9e2d2;border-radius:4px;padding:2px 9px;color:#758d6b;background:#f2f6ed}.trending button:hover{background:#fff}.hero-art{position:absolute;right:8px;top:5px;width:250px;height:235px;opacity:.93}.content-grid{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(260px,1fr);gap:23px;margin-bottom:30px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:13px}.section-heading h2{font-size:15px;letter-spacing:.3px;font-weight:600}.section-heading h2 small{margin-left:8px;font-size:9px;font-weight:400;letter-spacing:1px;color:#a5aca0}.text-link{display:inline-flex;align-items:center;gap:5px;color:#83917e;font-size:10px;white-space:nowrap}.text-link:hover{color:var(--green)}.text-link svg{width:13px;height:13px}.word-card{border:1px solid #e0e7da;border-radius:10px;background:#f0f3e9;padding:20px 25px 18px;position:relative;min-height:260px;overflow:hidden}.word-card-top{display:flex;align-items:center;justify-content:space-between}.small-label{font-size:9px;letter-spacing:1.7px;color:#8a9b79}.word-label{display:inline-flex;align-items:center;gap:5px;font-size:9px;color:#8a9b79}.word-label .icon{width:13px;height:13px}.word-title-row{display:flex;align-items:center;gap:13px;margin-top:4px}.word-title{font-family:Georgia,'Times New Roman',serif;font-size:37px;line-height:1.4;font-weight:400;letter-spacing:-.6px;color:#3c5140}.round-audio{display:inline-grid;place-items:center;border:1px solid #d7e0cb;width:31px;height:31px;border-radius:50%;color:#5f7c4f;background:#ffffff60;flex-shrink:0}.round-audio:hover{background:white;transform:scale(1.04)}.round-audio svg{width:15px;height:15px}.phonetic{font:12px/1.8 var(--font);color:#8c987f;letter-spacing:.6px}.word-meaning{font-size:13px;margin:11px 0 12px;color:#5c6d4f}.word-meaning .pos{font-family:Georgia,serif;font-size:14px;font-style:italic;color:#849272;margin-right:8px}.word-example{font-family:Georgia,serif;font-size:13px;line-height:1.8;color:#6a795d;padding-right:5px}.word-example-cn{font-size:10px;color:#97a18a;margin-top:3px}.word-card-bottom{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #e0e5d7;padding-top:13px;margin-top:17px}.save-word{display:inline-flex;align-items:center;gap:6px;font-size:10px;color:#718161;padding:0}.save-word svg{width:14px;height:14px}.save-word.saved{color:#276b5d}.word-number{font-size:9px;letter-spacing:1px;color:#a7b099}.plan-card{background:white;border:1px solid var(--line);border-radius:10px;padding:21px 22px 18px;min-height:260px}.plan-summary{display:flex;align-items:center;justify-content:space-between;margin-bottom:19px}.plan-summary strong{font-size:23px;font-weight:500;line-height:1}.plan-summary strong small{font-size:11px;color:#aaaFA7;font-weight:400;margin-left:4px}.plan-summary p{font-size:10px;color:#9ea699;margin-top:7px}.progress-ring{width:45px;height:45px;display:grid;place-items:center;border-radius:50%;background:conic-gradient(var(--green) var(--progress),#edf0e7 0);position:relative;font-size:10px;color:#809473}.progress-ring:before{content:'';position:absolute;inset:4px;background:#fff;border-radius:50%}.progress-ring span{z-index:1}.task-row{width:100%;display:flex;align-items:center;gap:10px;padding:10px 0;border-top:1px solid #f0f2ed;text-align:left}.task-icon{display:grid;place-items:center;width:27px;height:27px;border-radius:7px;background:#f2f5ec;color:#879672}.task-icon .icon{width:14px;height:14px}.task-row strong{font-size:11px;font-weight:400;display:block}.task-row small{font-size:9px;color:#a4ac9e;display:block}.task-row>.icon{margin-left:auto;width:13px;color:#b3bba9}.task-row.done strong{color:var(--green)}.task-row:hover strong{color:var(--green)}.grammar-section{margin-bottom:24px}.category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.category-card{text-align:left;border:1px solid var(--line);background:white;border-radius:9px;padding:21px 20px 16px;position:relative;transition:transform .2s,border-color .2s;width:100%}.category-card:hover{transform:translateY(-3px);border-color:#b7c9b3}.category-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.category-icon{width:35px;height:35px;border-radius:9px;display:grid;place-items:center;background:#edf3ed;color:#739475}.category-icon.amber{background:#faf2e7;color:#bf9c60}.category-icon.lavender{background:#f1edf7;color:#a093b9}.category-icon.blue{background:#ecf3f6;color:#7698a9}.category-icon.rose{background:#f8eeea;color:#b88e7c}.category-icon.sage{background:#eff2e3;color:#a0a66d}.category-level{font-size:9px;border:1px solid #e8ece4;border-radius:4px;padding:1px 6px;color:#98a38d}.category-card h3{font-size:13px;font-weight:500;margin-bottom:2px}.category-english{font-size:10px;color:#a8afa3}.category-desc{font-size:10px;color:#8d9886;margin-top:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.category-bottom{display:flex;align-items:center;justify-content:space-between;font-size:9px;color:#a2ad98;margin-top:18px}.category-bottom>.icon{width:14px;height:14px}.mini-progress{width:55px;height:3px;background:#edf0e9;border-radius:3px;overflow:hidden;margin-left:auto;margin-right:10px}.mini-progress span{display:block;height:100%;background:#79a285}.quote-strip{display:flex;align-items:center;gap:19px;padding:16px 24px;border:1px solid #e8e9e1;background:#f6f4ed;border-radius:8px;margin-bottom:14px}.quote-mark{font-family:Georgia,serif;font-size:45px;line-height:1;color:#c3c4ab;transform:translateY(7px)}.quote-en{font-family:Georgia,serif;font-size:14px;letter-spacing:.2px;color:#6f765d}.quote-cn{font-size:10px;color:#a4aa94;margin-top:2px}.quote-strip button{margin-left:auto;color:#9fa888}.quote-strip .icon{width:17px;height:17px}.footer{padding:22px 44px 25px;display:flex;justify-content:space-between;max-width:1390px;margin:auto;font-size:9px;color:#a8b09f}.footer>span:first-child{font-size:13px;font-weight:600;color:#94a388}.footer-message{font-size:9px;font-weight:400;margin-left:10px;color:#aeb5a5}.footer-spark{margin-left:8px}
.primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--green);color:#fff;padding:10px 19px;border-radius:7px;font-size:12px;transition:background .2s}.primary svg{width:16px;height:16px}.secondary{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line);background:white;border-radius:6px;padding:8px 14px;font-size:12px}.secondary:hover{border-color:#a6b99a;background:#f5f8f1}.secondary svg{width:15px;height:15px}.dictionary-search{background:#e9f0e7;border:1px solid #e1e9dc;border-radius:11px;padding:23px 27px;margin-bottom:26px}.dictionary-search .search-form{margin-top:0;max-width:100%;box-shadow:none}.dictionary-search .trending{margin-top:13px}.dictionary-layout{display:grid;grid-template-columns:minmax(0,1fr) 245px;gap:24px}.definition-card{background:white;border:1px solid var(--line);border-radius:11px;padding:29px 31px;margin-bottom:20px}.definition-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.definition-word{font-family:Georgia,serif;font-size:39px;font-weight:400;line-height:1.3;overflow-wrap:anywhere}.badge{display:inline-block;font-size:9px;background:#f1f5ec;color:#88a078;border-radius:4px;padding:2px 7px;vertical-align:middle;margin-left:7px}.pronunciations{display:flex;align-items:center;gap:16px;margin-top:13px;flex-wrap:wrap}.pronunciation{display:flex;align-items:center;gap:6px;color:#7e8a74;font-size:11px;padding:4px 0}.pronunciation svg{color:var(--green);width:15px;height:15px}.definition-section{padding-top:24px;margin-top:23px;border-top:1px solid var(--line)}.definition-section h3{font-size:12px;font-weight:600;margin-bottom:12px}.definition-meaning{font-size:17px;font-weight:500;margin-bottom:7px}.definition-meaning i{font-family:Georgia,serif;font-weight:400;color:#91a384;margin-right:10px}.definition-en{font-size:13px;color:#899680;line-height:1.8}.example-box{position:relative;border-left:3px solid #bdd0b1;background:#f6f8f2;padding:16px 39px 16px 18px;border-radius:0 5px 5px 0;margin-top:12px}.example-box p{font-size:14px;line-height:1.8}.example-box small{font-size:11px;display:block;color:#99a28e;margin-top:5px}.example-box button{position:absolute;right:12px;top:18px;color:#8eA17e}.example-box .icon{width:15px;height:15px}.word-chips{display:flex;flex-wrap:wrap;gap:9px}.word-chip{border:1px solid #e3e9dd;border-radius:6px;padding:8px 12px;text-align:left;background:#fafbf7;font-size:12px}.word-chip small{display:block;font-size:10px;color:#919d85}.word-chip:hover{border-color:#a1ba94}.data-source{font-size:10px;color:#aab29e;margin-top:19px}.side-panel{background:white;border:1px solid var(--line);border-radius:10px;padding:19px;margin-bottom:18px}.side-panel h3{font-size:12px;margin-bottom:14px;font-weight:500;display:flex;align-items:center;gap:7px}.side-panel h3 svg{width:15px;height:15px;color:#93a285}.recent-word{display:flex;align-items:center;justify-content:space-between;width:100%;padding:10px 0;border-top:1px solid #f0f2eb;font-size:12px;text-align:left}.recent-word small{font-size:10px;color:#9ca78e;max-width:108px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.recent-word:hover{color:var(--green)}.tip-panel{background:#f0f3e8;border-color:#e5eadd}.tip-panel p{font-size:11px;color:#8b977b;line-height:1.9}.empty-state{padding:60px 25px;text-align:center;background:white;border:1px solid var(--line);border-radius:10px}.empty-state .empty-icon{width:62px;height:62px;border-radius:50%;display:grid;place-items:center;background:#edf3e8;color:#86a276;margin:0 auto 15px}.empty-icon svg{width:27px;height:27px}.empty-state h2{font-size:18px;margin-bottom:9px;font-weight:500}.empty-state p{font-size:12px;color:#98a08e;max-width:450px;margin:0 auto 23px}.loading-dots{display:inline-flex;gap:6px;margin:20px}.loading-dots span{width:8px;height:8px;background:#80a586;border-radius:50%;animation:pulse 1s infinite}.loading-dots span:nth-child(2){animation-delay:.15s}.loading-dots span:nth-child(3){animation-delay:.3s}@keyframes pulse{50%{opacity:.2;transform:translateY(-4px)}}
.grammar-intro{display:flex;align-items:center;justify-content:space-between;padding:24px 29px;border:1px solid #e0e9dd;border-radius:10px;background:#eaf1e7;margin-bottom:26px;gap:20px}.grammar-intro h2{font-size:19px;font-weight:500;margin:5px 0}.grammar-intro p{font-size:11px;color:#8b9980}.grammar-intro .progress-ring{width:62px;height:62px;flex-shrink:0}.grammar-intro .progress-ring:before{background:#eaf1e7;inset:5px}.filter-bar{display:flex;gap:7px;align-items:center;flex-wrap:wrap;margin-bottom:22px}.filter-button{font-size:11px;padding:7px 15px;border:1px solid transparent;border-radius:6px;color:#8f9b83}.filter-button:hover{background:#edf2e9}.filter-button.active{color:var(--green);background:#e6eee2;border-color:#dce7d5}.lesson-list{margin-top:25px}.lesson-group-title{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:500;margin-bottom:12px}.lesson-group-title .category-icon{width:27px;height:27px;border-radius:6px}.lesson-group-title svg{width:15px;height:15px}.lesson-group{background:white;border:1px solid var(--line);border-radius:9px;margin-bottom:25px;overflow:hidden}.lesson-row{display:flex;align-items:center;width:100%;gap:16px;text-align:left;padding:17px 22px;border-bottom:1px solid #edf0e8}.lesson-row:last-child{border:0}.lesson-row:hover{background:#f8faf5}.lesson-number{font-size:12px;color:#b0baa4;width:24px;flex-shrink:0}.lesson-info{flex:1}.lesson-info strong{display:block;font-size:13px;font-weight:500}.lesson-info small{display:block;font-size:10px;color:#a3ad97;margin-top:2px}.lesson-meta{display:flex;align-items:center;gap:14px;color:#9ca78e;font-size:10px}.lesson-meta svg{width:16px;height:16px}.done-label{color:var(--green)}.grammar-search{border:1px solid #dfe6d7;background:#fff;padding:8px 12px;border-radius:6px;font-size:11px;margin-left:auto;max-width:170px}.notebook-toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:21px}.notebook-tools{display:flex;gap:10px;align-items:center}.notebook-tools input,.notebook-tools select{background:white;border:1px solid var(--line);border-radius:6px;padding:8px 11px;font-size:11px;min-width:0}.saved-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.saved-card{background:white;border:1px solid var(--line);border-radius:9px;padding:21px;position:relative}.saved-card .word-title{font-size:26px}.saved-card .word-meaning{font-size:12px;min-height:42px;margin-top:12px}.saved-card .word-card-bottom{margin-top:14px}.saved-card .phonetic{font-size:11px}.delete-button{position:absolute;right:13px;top:13px;color:#afbaa2;padding:5px}.delete-button svg{width:13px;height:13px}.delete-button:hover{color:#b36554}.saved-details{display:flex;align-items:center;gap:8px;font-size:10px;color:#95a387}.local-note{font-size:10px;color:#a6b097;margin-top:20px}.local-note svg{width:13px;height:13px;margin-right:5px}
dialog{padding:0;border:1px solid #e1e9d9;border-radius:14px;width:min(710px,calc(100% - 32px));max-height:90vh;overflow:auto;color:var(--ink);background:#fafbf7;box-shadow:0 30px 100px #203b3426}dialog::backdrop{background:#203c355c;backdrop-filter:blur(4px)}.dialog-header{padding:24px 30px 20px;border-bottom:1px solid #e4eadc;background:#eef3e8;position:relative}.close-button{position:absolute;right:17px;top:15px;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#ffffff70;color:#809372}.close-button:hover{background:#fff}.close-button svg{width:17px;height:17px}.dialog-header .eyebrow{margin-bottom:7px}.dialog-header h2{font-size:24px;padding-right:15px;line-height:1.5;font-weight:500}.dialog-header p{font-size:12px;color:#8da07e;margin-top:5px}.dialog-body{padding:25px 30px 28px}.lesson-intro{color:#718367;font-size:13px;line-height:1.9;margin-bottom:23px}.rule{margin-bottom:23px}.rule h3{font-size:14px;font-weight:500;margin-bottom:6px;display:flex;align-items:center;gap:8px}.rule h3 span{display:grid;place-items:center;background:#e9f0e0;color:#8b9d7b;width:21px;height:21px;border-radius:5px;font-size:10px}.rule>p{font-size:12px;color:#8a977e;line-height:1.9}.rule .example-box{margin-top:10px}.rule .example-box p{font-size:13px}.lesson-tip{padding:15px 17px;border-radius:7px;background:#f4f0e3;font-size:12px;color:#a39469;line-height:1.9;margin-bottom:25px}.quiz{border:1px solid #e0e9d7;padding:20px;border-radius:9px;background:white}.quiz h3{font-size:13px;font-weight:500;display:flex;gap:7px;align-items:center;margin-bottom:10px}.quiz h3 svg{width:16px;color:#95a87e}.quiz>p{font-size:13px;white-space:pre-line}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:14px}.quiz-option{border:1px solid #e3e9db;border-radius:6px;text-align:left;padding:10px 13px;font-size:12px;background:#fafbf6}.quiz-option span{font-size:10px;margin-right:9px;color:#a0ae90}.quiz-option:hover{border-color:#98b488}.quiz-option.correct{color:#2a7250;background:#eaf4e6;border-color:#b4d0a4}.quiz-option.wrong{color:#a0654f;background:#f8ece4;border-color:#e0c0ad}.quiz-feedback{font-size:12px;line-height:1.9;margin-top:14px;color:#7d9468}.lesson-actions{display:flex;justify-content:flex-end;margin-top:22px;gap:10px}.review-body{text-align:center;padding:35px 32px}.review-body .word-title{font-size:39px;overflow-wrap:anywhere}.review-counter{color:#9eab90;font-size:11px;margin-bottom:25px}.review-answer{margin-top:22px}.review-meaning{font-size:18px;margin-bottom:12px}.review-actions{display:flex;gap:12px;justify-content:center;margin-top:28px}.review-body .round-audio{margin-left:10px}.toast{position:fixed;bottom:28px;left:calc(50% + 114px);transform:translate(-50%,20px);background:#294f43;color:#fff;border-radius:8px;padding:11px 21px;font-size:12px;box-shadow:0 8px 30px #18362f20;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:100;max-width:calc(100% - 32px);text-align:center}.toast.visible{opacity:1;transform:translate(-50%,0)}.audio-playing{background:#d4e7cc!important;animation:audio-pulse 1s infinite}.audio-playing svg{color:#286b5d}@keyframes audio-pulse{50%{box-shadow:0 0 0 4px #92b97b22}}.muted{color:#99a58e}.only-mobile{display:none}
@media(min-width:1500px){main{padding-top:42px}.hero{padding:34px 38px;min-height:258px}.hero-content{max-width:760px}.hero-art{right:35px;width:280px;height:254px}.hero h2{font-size:30px}.word-card,.plan-card{min-height:272px}.category-card{padding:24px}.content-grid{gap:25px}}
@media(max-width:1150px){.sidebar{width:200px;padding-inline:15px}.workspace{margin-left:200px}.topbar{padding-inline:30px}main{padding:28px 30px 0}.footer{padding-inline:30px}.brand{font-size:30px}.hero-art{width:210px;right:-15px;top:18px}.hero-content{width:78%}.hero{padding-inline:25px}.content-grid{gap:17px;grid-template-columns:minmax(0,1.4fr) minmax(245px,1fr)}.word-card{padding-inline:21px}.category-grid{gap:13px}.category-card{padding-inline:16px}.category-desc{font-size:9px}.category-english{font-size:9px}.dictionary-layout{grid-template-columns:minmax(0,1fr) 210px;gap:17px}.definition-card{padding:24px}.saved-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.toast{left:calc(50% + 100px)}}
@media(max-width:900px){.sidebar{width:176px;padding-inline:12px}.brand{padding-left:4px;gap:9px;font-size:28px}.brand small{font-size:8px}.brand-mark{width:31px;height:36px}.workspace{margin-left:176px}.sidebar nav a{font-size:12px;gap:9px;padding-inline:11px}.nav-label{font-size:9px}.sidebar nav a .icon{width:17px}.little-note{padding-inline:12px;margin-inline:0}.little-note p{font-size:14px}.profile strong{font-size:10px}.profile small{font-size:8px}main{padding-inline:23px}.topbar{padding-inline:23px}.topbar-right{gap:13px}.date{font-size:10px}.content-grid{grid-template-columns:1fr 1fr;gap:15px}.word-title{font-size:31px}.word-card{padding:19px;min-height:280px}.plan-card{padding:21px 17px;min-height:280px}.section-heading h2 small{display:none}.word-example{font-size:12px}.word-card-bottom{margin-top:15px}.hero-content{width:100%}.hero-art{opacity:.12;right:-5px}.category-card{padding:17px 13px}.category-grid{gap:11px}.category-card h3{font-size:12px}.category-english{font-size:8px}.category-desc{font-size:9px}.mini-progress{width:32px}.dictionary-layout{grid-template-columns:1fr}.dictionary-side{display:grid;grid-template-columns:1fr 1fr;gap:15px}.category-bottom{font-size:8px}.footer{padding-inline:23px}.toast{left:calc(50% + 88px)}.grammar-search{margin-left:0;max-width:none;flex-grow:1}.filter-button{padding-inline:10px}.edition{font-size:8px}.page-heading h1{font-size:24px}}
@media(max-width:700px){.sidebar{position:fixed;top:auto;bottom:0;left:0;right:0;width:100%;height:68px;padding:0;border-right:0;border-top:1px solid var(--line);background:#fffffff5;backdrop-filter:blur(10px);z-index:25}.sidebar .brand,.sidebar .nav-label,.sidebar-bottom{display:none}.sidebar nav{flex-direction:row;justify-content:space-around;gap:0;height:100%}.sidebar nav a{flex:1;flex-direction:column;justify-content:center;gap:3px;padding:8px 3px;font-size:10px;border-radius:0}.sidebar nav a.active{background:transparent}.sidebar nav a.active:before{content:'';position:absolute;width:28px;height:3px;top:0;background:var(--green);border-radius:0 0 4px 4px}.sidebar nav a .icon{width:21px;height:21px}.nav-small,.nav-active-dot{display:none!important}.workspace{margin-left:0;padding-bottom:68px}.topbar{height:62px;padding:0 21px}.desktop-only{display:none}.breadcrumb:before{content:'lingua.';font-size:23px;color:var(--green);font-weight:700;letter-spacing:-1px}.breadcrumb{align-items:center;gap:14px}.breadcrumb strong{font-size:10px}.small-avatar{display:none}.date{display:none}.topbar-right{gap:13px}.streak{font-size:10px}main{padding:25px 20px 0}.page-heading{margin-bottom:22px}.page-heading h1{font-size:23px;letter-spacing:0}.page-heading p{font-size:11px}.greeting{font-size:9px}.edition{display:none}.hero{padding:23px 21px;min-height:233px;margin-bottom:24px;border-radius:10px}.hero h2{font-size:24px;margin-top:8px}.eyebrow{font-size:8px}.hero-description{font-size:10px}.hero-art{right:-35px;top:0;opacity:.13}.search-form{gap:7px;padding-left:10px;margin-top:20px}.search-form input{font-size:11px}.search-submit{padding:9px 12px;font-size:10px}.trending{gap:7px;font-size:9px}.trending button{font-size:9px;padding-inline:7px}.content-grid{grid-template-columns:1fr;gap:25px;margin-bottom:26px}.section-heading{margin-bottom:12px}.section-heading h2{font-size:14px}.section-heading h2 small{display:inline;font-size:8px}.word-card{min-height:0;padding:21px 23px}.word-title{font-size:36px}.word-example{font-size:14px}.word-meaning{font-size:14px}.word-example-cn{font-size:11px}.word-card-bottom{padding-top:15px;margin-top:20px}.plan-card{min-height:0;padding:20px 22px}.plan-summary{margin-bottom:17px}.task-row{padding:12px 0}.task-row strong{font-size:12px}.task-row small{font-size:10px}.category-grid{grid-template-columns:1fr;gap:12px}.category-card{padding:18px 19px;display:grid;grid-template-columns:48px 1fr auto;column-gap:12px}.category-top{margin:0;grid-row:1/4;display:block}.category-icon{width:40px;height:40px}.category-level{margin-top:9px;display:inline-block}.category-card h3{font-size:14px;grid-column:2}.category-english{font-size:10px;grid-column:2}.category-desc{font-size:10px;margin-top:6px;grid-column:2}.category-bottom{grid-column:3;grid-row:1/4;display:flex;flex-direction:column;justify-content:center;gap:7px;margin:0;font-size:9px}.category-bottom>.icon{display:none}.mini-progress{margin:0;width:40px}.quote-strip{padding:17px;gap:12px;margin-top:24px}.quote-en{font-size:12px}.quote-cn{font-size:9px}.quote-mark{font-size:38px}.footer{padding:24px 21px;font-size:8px}.footer>span:first-child{font-size:11px}.footer-message{font-size:8px;margin-left:6px}.footer>span:last-child{display:none}.dictionary-search{padding:17px;margin-bottom:20px}.definition-card{padding:24px 21px}.definition-word{font-size:34px}.definition-top .secondary{font-size:0;padding:9px;gap:0}.definition-top .secondary svg{width:18px;height:18px}.definition-meaning{font-size:16px}.dictionary-side{grid-template-columns:1fr}.side-panel{margin-bottom:0}.grammar-intro{padding:22px}.grammar-intro h2{font-size:17px}.grammar-intro p{font-size:10px}.filter-bar{gap:5px}.filter-button{font-size:10px;padding:6px 10px}.grammar-search{width:100%;margin-top:10px;font-size:12px}.lesson-row{padding:15px 14px;gap:10px}.lesson-info strong{font-size:12px}.lesson-meta{gap:7px;font-size:9px}.lesson-meta .duration{display:none}.lesson-number{width:21px;font-size:11px}.saved-grid{grid-template-columns:1fr}.notebook-toolbar{align-items:stretch;flex-direction:column}.notebook-tools input{flex:1;width:100px}.notebook-toolbar>.primary{align-self:flex-start}.notebook-tools select{max-width:130px}.saved-card .word-meaning{min-height:0}.toast{left:50%;bottom:88px;max-width:90%;width:max-content}.dialog-header{padding:23px 21px 20px}.dialog-header h2{font-size:21px}.dialog-body{padding:23px 21px}.quiz-options{grid-template-columns:1fr}.lesson-actions{justify-content:stretch}.lesson-actions button{flex:1}.review-body{padding:27px 23px}.review-body .word-title{font-size:33px}.lesson-tip{font-size:11px}dialog{max-height:85vh}.only-mobile{display:block}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
button.word-title{padding:0;text-align:left}.definition-meaning{white-space:pre-line}.definition-en{color:#687661;white-space:pre-line}.rule>p{color:#69795f}.lesson-intro{color:#617355}.example-box small{color:#76866a}.lesson-info small{color:#869378}.word-example-cn{color:#7d8b70}.hero-description{color:#718169}.page-heading p{color:#78846f}.category-desc{color:#79876e}.data-source a{text-decoration:underline;text-underline-offset:3px}.saved-card .word-title{overflow-wrap:anywhere}.saved-grid .saved-card{min-width:0}
.hero h2 span{display:inline-block}