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0}.btn-ghost:active{background:var(--bg-secondary)}.progress-bar{background:var(--bg-secondary);border-radius:100px;height:6px;position:relative;overflow:hidden}[data-theme=dark] .progress-bar{background:var(--border-secondary)}.progress-fill{border-radius:100px;height:100%;transition:width .6s cubic-bezier(.4,0,.2,1);position:relative}.progress-fill:after{content:"";background:linear-gradient(90deg,#0000,#ffffff4d,#0000) 0 0/200% 100%;animation:2s infinite shimmer;position:absolute;inset:0}.progress-mao{background:linear-gradient(90deg,var(--color-mao-400)0%,var(--color-mao-500)100%)}.progress-gold{background:linear-gradient(90deg,var(--color-gold-400)0%,var(--color-gold-500)100%)}.progress-jade{background:linear-gradient(90deg,var(--color-jade-400)0%,var(--color-jade-500)100%)}.progress-flame{background:linear-gradient(90deg,var(--color-flame-400)0%,var(--color-flame-500)100%)}input[type=range]{appearance:none;background:var(--bg-secondary);border-radius:100px;outline:none;width:100%;height:6px}[data-theme=dark] input[type=range]{background:var(--border-secondary)}input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--bg-card);cursor:pointer;border:2px solid var(--accent-primary);width:24px;height:24px;box-shadow:var(--shadow-md);border-radius:50%;transition:all .2s}input[type=range]::-webkit-slider-thumb:active{transform:scale(1.1)}input[type=range]::-moz-range-thumb{background:var(--bg-card);cursor:pointer;border:2px solid var(--accent-primary);width:24px;height:24px;box-shadow:var(--shadow-md);border-radius:50%}.toggle{background:var(--border-secondary);cursor:pointer;border-radius:100px;flex-shrink:0;width:52px;height:32px;transition:background .3s;position:relative}.toggle.active{background:var(--accent-primary)}.toggle-knob{width:26px;height:26px;box-shadow:var(--shadow-sm);background:#fff;border-radius:50%;transition:transform .3s cubic-bezier(.4,0,.2,1);position:absolute;top:3px;left:3px}.toggle.active .toggle-knob{transform:translate(20px)}.option-card{background:var(--bg-secondary);cursor:pointer;border:2px solid #0000;border-radius:16px;align-items:center;gap:12px;padding:14px 16px;transition:all .2s;display:flex}.option-card:active{transform:scale(.98)}.option-card.selected{background:var(--accent-bg);border-color:var(--accent-primary)}.radio-dot{border:2px solid var(--border-secondary);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;transition:all .2s;display:flex}.option-card.selected .radio-dot{border-color:var(--accent-primary);background:var(--accent-primary)}.radio-dot:after{content:"";opacity:0;background:#fff;border-radius:50%;width:8px;height:8px;transition:all .2s;transform:scale(0)}.option-card.selected .radio-dot:after{opacity:1;transform:scale(1)}.badge{border-radius:100px;align-items:center;gap:4px;padding:4px 10px;font-size:.75rem;font-weight:600;display:inline-flex}.badge-mao{background:var(--accent-bg);color:var(--accent-primary)}.badge-gold{color:var(--color-gold-500);background:#fcd34d33}[data-theme=dark] .badge-gold{background:#fcd34d26}.badge-jade{color:var(--color-jade-500);background:#4ade8033}[data-theme=dark] .badge-jade{background:#4ade8026}.badge-flame{color:var(--color-flame-500);background:#fb923c33}[data-theme=dark] .badge-flame{background:#fb923c26}.dot{border-radius:50%;flex-shrink:0;width:8px;height:8px}.dot-new{background:var(--text-muted)}.dot-learning{background:var(--color-gold-500)}.dot-reviewing{background:var(--accent-primary)}.dot-known{background:var(--color-jade-500)}.icon-container{border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.icon-sm{width:36px;height:36px}.icon-md{width:44px;height:44px}.icon-lg{width:56px;height:56px}.icon-mao{background:linear-gradient(135deg,var(--color-mao-500)0%,var(--color-mao-600)100%);color:#fff}.icon-flame{background:linear-gradient(135deg,var(--color-flame-400)0%,var(--color-flame-500)100%);color:#fff}.icon-jade{background:linear-gradient(135deg,var(--color-jade-400)0%,var(--color-jade-500)100%);color:#fff}.icon-gold{background:linear-gradient(135deg,var(--color-gold-400)0%,var(--color-gold-500)100%);color:var(--color-ink-800)}.icon-soft{background:var(--accent-bg);color:var(--accent-primary)}.vocab-card{background:var(--bg-card);border:1px solid var(--border-primary);border-radius:18px;align-items:center;gap:14px;padding:14px;transition:all .2s;display:flex}.vocab-card:active{background:var(--bg-card-hover);transform:scale(.98)}.vocab-hanzi{background:var(--accent-bg);border-radius:14px;justify-content:center;align-items:center;width:52px;height:52px;display:flex;position:relative}.vocab-srs-dot{border:2px solid var(--bg-card);border-radius:50%;width:14px;height:14px;position:absolute;bottom:-2px;right:-2px}.flashcard{background:var(--bg-card);border:1px solid var(--border-primary);cursor:pointer;border-radius:24px;flex-direction:column;justify-content:center;align-items:center;min-height:240px;padding:32px 24px;transition:all .2s;display:flex;position:relative;overflow:hidden}.flashcard:before{content:"";background:linear-gradient(90deg,var(--accent-primary)0%,var(--accent-secondary)100%);height:4px;position:absolute;top:0;left:0;right:0}.flashcard:active{transform:scale(.98)}.cta-banner{background:linear-gradient(135deg,var(--color-mao-600)0%,var(--color-mao-500)50%,var(--color-mao-700)100%);color:#fff;border-radius:24px;padding:24px 20px;position:relative;overflow:hidden}.cta-banner:before{content:"";pointer-events:none;background:radial-gradient(circle,#ffffff26,#0000 70%);width:200px;height:200px;position:absolute;top:-50%;right:-30%}.cta-banner:after{content:"";pointer-events:none;background:radial-gradient(circle,#ffffff1a,#0000 70%);width:150px;height:150px;position:absolute;bottom:-30%;left:-20%}.nav-tab{cursor:pointer;-webkit-tap-highlight-color:transparent;border-radius:100px;flex-direction:column;justify-content:center;align-items:center;gap:2px;min-height:44px;padding:8px 16px;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.nav-tab .nav-icon{color:var(--text-muted);transition:all .2s}.nav-tab .nav-label{color:var(--text-muted);font-size:.625rem;font-weight:600;transition:all .2s}.nav-tab.active{background:var(--accent-bg)}[data-theme=dark] .nav-tab.active{background:#8b7fd433}.nav-tab.active .nav-icon,.nav-tab.active .nav-label{color:var(--accent-primary)}.nav-tab:active{opacity:.8;transform:scale(.94)}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-secondary);border-radius:100px}.safe-bottom{padding-bottom:max(var(--tg-content-safe-area-inset-bottom,0px),var(--tg-safe-area-inset-bottom,0px),env(safe-area-inset-bottom,0px),12px)}.glass-nav.safe-bottom{padding-bottom:max(var(--tg-content-safe-area-inset-bottom,4px),var(--tg-safe-area-inset-bottom,4px),env(safe-area-inset-bottom,4px),4px)}.safe-top{padding-top:max(calc(var(--tg-safe-area-inset-top,0px) + var(--tg-content-safe-area-inset-top,0px)),16px)}.safe-top-fallback{padding-top:max(env(safe-area-inset-top,0px),48px)}.saving-indicator-fullscreen{top:max(calc(var(--tg-safe-area-inset-top,0px) + var(--tg-content-safe-area-inset-top,0px) + 8px),8px)}.interactive{cursor:pointer;-webkit-tap-highlight-color:transparent;transition:transform .2s}.interactive:active{transform:scale(.97)}.skeleton{background:linear-gradient(90deg,var(--bg-secondary)0%,var(--bg-card)50%,var(--bg-secondary)100%);background-size:200% 100%;border-radius:8px;animation:1.5s infinite shimmer}.divider{background:var(--border-primary);height:1px;margin:16px 0}.section-header{align-items:center;gap:10px;margin-bottom:16px;display:flex}.section-icon{background:var(--accent-bg);width:28px;height:28px;color:var(--accent-primary);border-radius:10px;justify-content:center;align-items:center;display:flex}@media(hover:none){.interactive:hover,.card:hover{transform:none}}button,[role=button],.option-card,.nav-tab{min-height:44px}.text-ink-800,.text-ink-700{color:var(--text-primary)}.text-ink-600{color:var(--text-secondary)}.text-ink-500{color:var(--text-tertiary)}.text-ink-400{color:var(--text-muted)}.text-mao-500{color:var(--accent-primary)}.text-mao-600,.text-mao-700{color:var(--accent-secondary)}.bg-ink-50{background:var(--bg-primary)}.bg-ink-100{background:var(--bg-secondary)}.bg-ink-200{background:var(--border-primary)}.bg-mao-50,.bg-mao-100{background:var(--accent-bg)}.bg-mao-200{background:var(--accent-bg-hover)}.border-mao-300,.border-mao-400{border-color:var(--accent-primary)}.bg-cherry-100{background:#f8717126}.text-cherry-600{color:var(--color-cherry-400)}.border-cherry-200{border-color:#f871714d}.bg-jade-100{background:#4ade8026}.text-jade-600{color:var(--color-jade-400)}.border-jade-200{border-color:#4ade804d}.text-gold-500{color:var(--color-gold-500)}.bg-gold-400{background:var(--color-gold-400)}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-gradient-position{syntax:"*";inherits:false}@property --tw-gradient-from{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-via{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-to{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-stops{syntax:"*";inherits:false}@property --tw-gradient-via-stops{syntax:"*";inherits:false}@property --tw-gradient-from-position{syntax:"<length-percentage>";inherits:false;initial-value:0%}@property --tw-gradient-via-position{syntax:"<length-percentage>";inherits:false;initial-value:50%}@property --tw-gradient-to-position{syntax:"<length-percentage>";inherits:false;initial-value:100%}@property --tw-font-weight{syntax:"*";inherits:false}@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}