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12px;font-size:12px;font-weight:600;display:flex}.translate-button{color:#fff;background:linear-gradient(145deg,#2f84d7,#5d68c9);border:0;border-radius:999px;align-items:center;gap:8px;min-height:40px;padding:8px 14px;font-size:11px;font-weight:600;transition:opacity .18s;display:inline-flex}.translate-button:hover:not(:disabled){background:#315f9f}.translate-button:disabled{cursor:wait;opacity:.55}.assistant-card{background:linear-gradient(105deg,#ffffffeb 8%,#d7e9ffb3 54%,#e2dcffc2 100%);min-height:112px}.feature-icon{border:1px solid #ffffffb3;border-radius:18px;flex:none;justify-content:center;align-items:center;width:50px;height:50px;display:flex;box-shadow:0 8px 18px #8cad9e1f}.arrow-button{border-radius:18px;width:48px;height:48px}.action-card:first-child{background:linear-gradient(145deg,#fffffff5,#d5eaffdb)}.action-card:nth-child(2){background:linear-gradient(145deg,#fffffff5,#e0dcffd1)}.action-card:nth-child(3){background:linear-gradient(145deg,#daf1fff0,#ffffffe6)}.action-card:nth-child(4){background:linear-gradient(145deg,#ebe6ffe6,#fffffff0)}.action-card h4{font-size:19px;line-height:1.1}.action-card p,.earn-card p{margin-top:5px}.voice-card-listening{border-color:#2f84d79e;box-shadow:0 0 0 4px #2f84d71a,0 14px 30px #2f76be29}.voice-card-listening .feature-icon{color:#1d78bd;background:#bee5ffe6;animation:1.4s ease-in-out infinite listening-pulse}.voice-card-active{border-color:#2f84d761}.voice-controls{border-radius:22px;gap:14px;margin-top:12px;padding:16px;display:grid}.voice-controls-heading,.voice-control-row,.voice-control-actions{align-items:center;display:flex}.voice-controls-heading{justify-content:space-between}.voice-control-row{color:#31516f;gap:10px;font-size:12px;font-weight:700}.voice-control-row label{flex:1}.voice-control-row output{color:#2f84d7;text-align:right;min-width:25px}.voice-control-row input{accent-color:#2f84d7;width:120px}.voice-control-hint{color:#7890aa;margin-top:-7px;font-size:11px}.voice-control-actions{gap:8px}.voice-start-button,.voice-stop-button{border:0;border-radius:12px;justify-content:center;align-items:center;gap:7px;padding:9px 13px;font-size:12px;font-weight:700;transition:opacity .18s,transform .18s;display:inline-flex}.voice-start-button{color:#fff;background:#2f84d7}.voice-stop-button{color:#526b83;background:#dce8f5b8}.voice-start-button:hover:not(:disabled),.voice-stop-button:hover:not(:disabled){transform:translateY(-1px)}.voice-start-button:disabled,.voice-stop-button:disabled{cursor:not-allowed;opacity:.45}@keyframes listening-pulse{0%,to{box-shadow:0 0 #2f84d73d}50%{box-shadow:0 0 0 9px #2f84d700}}.earn-card{background:linear-gradient(100deg,#fffffff0,#e2efffcc);min-height:88px}.bottom-nav{z-index:20;background:#ffffffb8;border-radius:24px;justify-content:space-around;align-items:center;width:min(100% - 48px,300px);height:66px;padding:7px;display:flex;position:fixed;bottom:18px;left:50%;transform:translate(-50%);box-shadow:0 12px 35px #426ca933}.bottom-nav-item{color:#35516f;background:0 0;border:0;border-radius:18px;justify-content:center;align-items:center;width:54px;height:52px;transition:all .18s;display:flex}.bottom-nav-item.active{color:#fff;background:#143b70;box-shadow:0 5px 12px #143b7038}@media (width>=640px){.app-shell{padding-left:2rem;padding-right:2rem}}@media (width<=900px){.app-layout{grid-template-columns:minmax(0,1fr) minmax(270px,.72fr);gap:2rem}.learning-heading h1{font-size:1.4rem}.learning-orbit{border-radius:22px;width:58px;height:58px}}@media (width<=700px){.app-layout{display:block}.learning-panel{min-height:0;margin-top:32px;padding:32px 22px;position:relative;top:auto}.learning-heading h1{font-size:clamp(2rem,12vw,2.5rem)}}body.dark-page{background:radial-gradient(circle at 12% 0,#1942758f,#0000 34%),radial-gradient(circle at 96% 18%,#42387d5c,#0000 30%),linear-gradient(145deg,#0b1628 0%,#111d32 52%,#0c192c 100%)}.app-shell.dark-mode{color:#e5efff}.dark-mode .glass-panel{background:linear-gradient(135deg,#1a304fdb,#12223cc7);border-color:#97beef2e;box-shadow:0 18px 40px #020a1847}.dark-mode .glass-card{background:#1a2f4cdb;border-color:#97beef29;box-shadow:0 12px 28px #020a183d}.dark-mode .app-content:before{background-image:radial-gradient(#66acef2e 1px,#0000 1px),radial-gradient(#977deb24 1px,#0000 1px)}.dark-mode .theme-toggle,.dark-mode .icon-button{color:#c6e2ff;background:#2c4a7194;border-color:#97beef47}.dark-mode .account-avatar{color:#d3eaff;background:linear-gradient(145deg,#335b8be6,#403b7ed1);border-color:#97beef4d}.dark-mode .text-slate-900,.dark-mode .text-slate-800,.dark-mode .text-slate-700{color:#e7f1ff!important}.dark-mode .text-slate-600,.dark-mode .text-slate-500,.dark-mode .text-slate-400{color:#abc2df!important}.dark-mode .language-select{color:#b6cbe5}.dark-mode .language-select option{color:#152943;background:#dceaff}.dark-mode .assistant-card,.dark-mode .action-card:first-child,.dark-mode .action-card:nth-child(2),.dark-mode .action-card:nth-child(3),.dark-mode .action-card:nth-child(4),.dark-mode .earn-card{background:linear-gradient(145deg,#264469e6,#213057e0)}.dark-mode .action-card:first-child .feature-icon{color:#8be8ff;background:linear-gradient(145deg,#2c81a694,#235484b8);border-color:#67ddff47;box-shadow:0 0 24px #47cdf629}.dark-mode .action-card:nth-child(2) .feature-icon{color:#d0baff;background:linear-gradient(145deg,#6851a39e,#364284bf);border-color:#bea4ff47;box-shadow:0 0 24px #9d79ff2b}.dark-mode .action-card:nth-child(3) .feature-icon{color:#a8d2ff;background:linear-gradient(145deg,#3670b8a8,#30498bc2);border-color:#76b8ff4d;box-shadow:0 0 24px #569dff2e}.dark-mode .action-card:nth-child(4) .feature-icon{color:#93f0d7;background:linear-gradient(145deg,#2a878b9e,#235b7dc2);border-color:#64e7cc47;box-shadow:0 0 24px #45d7bf29}.dark-mode .learning-panel{background:radial-gradient(circle at 88% 8%,#687bc673,#0000 30%),radial-gradient(circle at 8% 92%,#2b7aae4d,#0000 36%),linear-gradient(145deg,#203d69 0%,#2d4e80 52%,#3f4d88 100%);border-color:#a0c3f33d}.dark-mode .lesson-card{background:linear-gradient(135deg,#233e62f5,#26335deb)}.dark-mode .lesson-card-header,.dark-mode .lesson-meaning,.dark-mode .lesson-note{color:#b8cce6}.dark-mode .lesson-phrase{color:#f0f6ff}.dark-mode .learning-tip{background:#0e1f3847}.dark-mode .progress-card{background:#233d62c7}.dark-mode .bottom-nav{background:#192d49e0}.dark-mode .bottom-nav-item{color:#b8d0ec}.dark-mode .bottom-nav-item.active{color:#0d233f;background:#75baf3}.dark-mode .translation-input{color:#e7f1ff;background:#10233db8;border-color:#97beef47}.dark-mode .translation-input:focus{background:#142c4be6;border-color:#75baf3b8;box-shadow:0 0 0 4px #75baf324}.dark-mode .feature-notice{color:#b9ddff;background:#1e476f94;border-color:#75baf347}.dark-mode .voice-control-row{color:#c3d9ef}.dark-mode .voice-control-hint{color:#91abc6}.dark-mode .voice-stop-button{color:#d1e3f5;background:#45608094}.dark-mode .translation-input::placeholder{color:#8fa9c7}.dark-mode .modal-content{color:#e7f1ff}.hover\:border-emerald-500:hover{--tw-border-opacity:1;border-color:rgb(16 185 129/var(--tw-border-opacity,1))}.hover\:bg-blue-50:hover{--tw-bg-opacity:1;background-color:rgb(239 246 255/var(--tw-bg-opacity,1))}.hover\:bg-blue-500\/20:hover{background-color:#3b82f633}.hover\:bg-emerald-700:hover{--tw-bg-opacity:1;background-color:rgb(4 120 87/var(--tw-bg-opacity,1))}.hover\:bg-slate-100:hover{--tw-bg-opacity:1;background-color:rgb(241 245 249/var(--tw-bg-opacity,1))}.hover\:bg-slate-50:hover{--tw-bg-opacity:1;background-color:rgb(248 250 252/var(--tw-bg-opacity,1))}.hover\:bg-slate-800:hover{--tw-bg-opacity:1;background-color:rgb(30 41 59/var(--tw-bg-opacity,1))}.hover\:bg-white:hover{--tw-bg-opacity:1;background-color:rgb(255 255 255/var(--tw-bg-opacity,1))}.hover\:text-blue-600:hover{--tw-text-opacity:1;color:rgb(37 99 235/var(--tw-text-opacity,1))}.hover\:text-slate-700:hover{--tw-text-opacity:1;color:rgb(51 65 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(width>=768px){.md\:flex-row{flex-direction:row}.md\:flex-col{flex-direction:column}.md\:items-start{align-items:flex-start}.md\:items-center{align-items:center}.md\:gap-0{gap:0}}