@charset "UTF-8";.dbg-root{position:fixed;right:.8rem;bottom:6rem;z-index:9999}.dbg-fab{width:2.4rem;height:2.4rem;border-radius:50%;background:rgba(61,50,37,.85);color:#fff;font-size:1.1rem;display:flex;align-items:center;justify-content:center}.dbg-mask{position:fixed;inset:0;background:rgba(61,50,37,.45)}.dbg-sheet{position:fixed;left:0;right:0;bottom:0;max-height:72vh;background:#fffdf7;border-top-left-radius:.8rem;border-top-right-radius:.8rem;border-top:.05rem solid #ead9bd;display:flex;flex-direction:column}.dbg-head{display:flex;align-items:center;justify-content:space-between;padding:.6rem .8rem .4rem}.dbg-title{font-size:.75rem;font-weight:700;color:#3d3225}.dbg-x{font-size:.8rem;color:#8a7a63;padding:.2rem .4rem}.dbg-tabs{display:flex;padding:0 .6rem .4rem}.dbg-tab{flex:1;text-align:center;font-size:.6rem;color:#8a7a63;background:#fff;border:.05rem solid #ead9bd;border-radius:.4rem;padding:.3rem 0;margin-right:.2rem}.dbg-tab:last-child{margin-right:0}.dbg-tab--on{background:#3d3225;color:#fff;border-color:#3d3225}.dbg-body{max-height:52vh;padding:.2rem .8rem 1rem}.dbg-row{display:flex;padding:.3rem 0;border-bottom:.05rem dashed #ead9bd;font-size:.65rem}.dbg-k{width:4.6rem;min-width:4.6rem;color:#8a7a63;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.dbg-v{flex:1;min-width:0;color:#3d3225;word-break:break-all}.dbg-btnrow{display:flex;flex-wrap:wrap;padding:.5rem 0}.dbg-btn{border:.05rem solid #3d3225;border-radius:.4rem;padding:.3rem .6rem;margin:0 .4rem .4rem 0;font-size:.65rem;color:#3d3225;background:#fff}.dbg-btn--danger{border-color:#b3261e;color:#b3261e}.dbg-btn--armed{background:#b3261e;border-color:#b3261e;color:#fff}.dbg-danger{margin-top:.4rem;background:#fdf0d5;border-radius:.5rem;padding:.2rem .5rem}.overdrive-mask{position:fixed;inset:0;background:var(--scrim);backdrop-filter:blur(.3rem);-webkit-backdrop-filter:blur(.3rem);z-index:var(--z-popup);animation:maskIn .2s ease;display:flex;align-items:center;justify-content:center;padding:0 var(--space-30)}.overdrive-card{position:relative;width:100%;max-width:15.1rem;background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-xl);box-shadow:var(--shadow-float);padding:var(--space-24) var(--space-18) var(--space-12);display:flex;flex-direction:column;align-items:center;text-align:center;animation:sheetIn .24s cubic-bezier(.2,.8,.2,1)}.overdrive-card:before{content:"";position:absolute;inset:0;border-radius:inherit;background:radial-gradient(16rem 7.5rem at 50% 0%,rgba(251,191,36,.14),transparent 68%);pointer-events:none}.overdrive-card__icon{width:2.4rem;height:2.4rem;border-radius:50%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--sun-light) 0%,var(--primary-light-2) 100%);border:var(--bw) solid var(--sun);box-shadow:var(--shadow-sm),var(--shadow-inset);position:relative;z-index:var(--z-base)}.overdrive-card__sun{width:1.1rem;height:1.1rem;display:block}.overdrive-card__title{margin-top:var(--space-12);font-size:var(--fs-h3);font-weight:800;color:var(--text);letter-spacing:.02rem;position:relative;z-index:var(--z-base)}.overdrive-card__text{margin-top:var(--space-6);font-size:var(--fs-13);line-height:1.7;color:var(--muted);position:relative;z-index:var(--z-base)}.overdrive-card__num{color:var(--text-2);font-weight:800}.overdrive-card__go{margin-top:var(--space-14);padding:var(--space-12);text-align:center;font-size:var(--fs-body);font-weight:800;letter-spacing:.05rem;color:var(--on-primary);background:var(--primary);border:var(--bw) solid var(--primary-deep);border-radius:var(--r-full);box-shadow:var(--shadow-primary);cursor:pointer;transition:filter .12s ease,transform .1s ease,box-shadow .1s ease;width:100%;margin-top:var(--space-16);box-sizing:border-box;position:relative;z-index:var(--z-base)}.overdrive-card__go:active,.overdrive-card__go--pressed{transform:translateY(var(--press-y));box-shadow:var(--shadow-primary-press)}.overdrive-card__later{margin-top:var(--space-2);padding:var(--space-8) var(--space-12);font-size:var(--fs-sm);font-weight:600;color:var(--muted);border-radius:var(--r-full);position:relative;z-index:var(--z-base)}.overdrive-card__later:active,.overdrive-card__later--pressed{transform:scale(.97);background:var(--surface-2)}body .weapp-banner{margin-top:var(--space-16);display:flex;align-items:center;gap:var(--space-8);background:var(--primary-deep);border:var(--bw) solid var(--primary-deep);border-radius:var(--r-md);padding:var(--space-8) var(--space-10);box-shadow:var(--shadow-sm)}body .weapp-banner__emoji{font-size:var(--fs-body);line-height:1}body .weapp-banner__text{flex:1;min-width:0;font-size:var(--fs-sm);font-weight:700;color:#fff;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}body .weapp-banner__go{flex-shrink:0;padding:var(--space-6) var(--space-14);background:#ffffff;border-radius:var(--r-full);font-size:var(--fs-sm);font-weight:800;color:var(--primary-deep);line-height:1.4;cursor:pointer}body .weapp-banner__go--pressed{opacity:.75}body .weapp-banner__x{flex-shrink:0;padding:var(--space-6) var(--space-8);font-size:var(--fs-sm);color:#ffffffbf;line-height:1;cursor:pointer}body .weapp-banner__x--pressed{opacity:1;color:#fff}body .weapp-guide-mask{position:fixed;inset:0;background:var(--scrim);backdrop-filter:blur(.3rem);-webkit-backdrop-filter:blur(.3rem);z-index:var(--z-mask);animation:maskIn .2s ease;display:flex;align-items:center;justify-content:center;padding:var(--space-24)}body .weapp-guide-card{width:100%;max-width:16rem;background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-xl);padding:var(--space-20) var(--space-16) var(--space-16);display:flex;flex-direction:column;align-items:center;box-shadow:var(--shadow-float);animation:sheetIn .28s cubic-bezier(.2,.8,.2,1)}body .weapp-guide-card__title{font-size:var(--fs-body);font-weight:800;color:var(--text);text-align:center}body .weapp-guide-card__sub{margin-top:var(--space-6);font-size:var(--fs-sm);color:var(--muted);text-align:center}body .weapp-guide-card__qr{margin-top:var(--space-12);width:8rem;height:8rem}body .weapp-guide-card__qr-ph{margin-top:var(--space-12);width:8rem;height:8rem;display:flex;align-items:center;justify-content:center;text-align:center;background:var(--surface-2);border:var(--bw) dashed var(--border-strong);border-radius:var(--r-md);font-size:var(--fs-sm);font-weight:700;color:var(--primary-deep);line-height:1.8;white-space:pre-line}body .weapp-guide-card__copy{margin-top:var(--space-14);padding:var(--space-12);text-align:center;font-size:var(--fs-body);font-weight:800;letter-spacing:.05rem;color:var(--on-primary);background:var(--primary);border:var(--bw) solid var(--primary-deep);border-radius:var(--r-full);box-shadow:var(--shadow-primary);cursor:pointer;transition:filter .12s ease,transform .1s ease,box-shadow .1s ease;width:100%}body .weapp-guide-card__copy--pressed{filter:brightness(.96)}body .weapp-guide-card__close{margin-top:var(--space-4);padding:var(--space-10);font-size:var(--fs-sm);font-weight:600;color:var(--muted);cursor:pointer}body .weapp-guide-card__close--pressed{opacity:.6}.wallet-mask{position:fixed;inset:0;z-index:var(--z-sheet);background:var(--scrim);animation:maskIn .2s ease;max-width:var(--content-max);margin:0 auto}.wallet-sheet{position:absolute;left:0;right:0;bottom:0;max-height:78%;display:flex;flex-direction:column;background:var(--surface);border:var(--bw) solid var(--border);border-bottom:none;border-radius:var(--r-xl) var(--r-xl) 0 0;box-shadow:var(--shadow-float);animation:sheetIn .26s cubic-bezier(.34,1.56,.64,1)}.wallet-sheet__grab{flex-shrink:0;width:2rem;height:.2rem;border-radius:var(--r-full);background:var(--muted-3);margin:.5rem auto 0}.wallet-head{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:.6rem .8rem .4rem}.wallet-head__title{font-size:var(--fs-body);font-weight:800;color:var(--text)}.wallet-head__close{width:1.5rem;height:1.5rem;border-radius:var(--r-full);background:var(--surface-2);border:.05rem solid var(--border);display:flex;align-items:center;justify-content:center}.wallet-head__close--pressed{transform:scale(.92);background:var(--border-light)}.wallet-scroll{flex:1;min-height:0;padding:0 .8rem calc(1rem + env(safe-area-inset-bottom,0rem));box-sizing:border-box;overscroll-behavior:contain}.wallet-balance{display:flex;align-items:center;justify-content:space-between;padding:.7rem .8rem;border-radius:var(--r-lg);background:linear-gradient(135deg,#fffbeb 0%,#fef3c7 100%);border:var(--bw) solid #fde68a;box-shadow:var(--shadow-sm),inset 0 .05rem #fffc}.wallet-balance__main{display:flex;align-items:center;gap:.5rem}.wallet-balance__col{display:flex;flex-direction:column}.wallet-balance__num{font-size:1.3rem;font-weight:900;line-height:1.1;color:#b45309;font-variant-numeric:tabular-nums}.wallet-balance__label{margin-top:.1rem;font-size:var(--fs-xs);font-weight:700;color:#92400e;opacity:.75}.wallet-balance__total{text-align:right;font-size:var(--fs-xs);font-weight:600;color:#92400e;opacity:.85;font-variant-numeric:tabular-nums;white-space:pre-line}.wallet-tabs{display:flex;gap:.3rem;margin-top:.7rem;padding:.15rem;background:var(--surface-2);border:.05rem solid var(--border-light);border-radius:var(--r-full)}.wallet-tab{flex:1;text-align:center;padding:.35rem 0;border-radius:var(--r-full);font-size:var(--fs-sm);font-weight:700;color:var(--muted);border:.05rem solid transparent;transition:background .15s ease,color .15s ease}.wallet-tab--on{background:var(--surface);color:var(--text);border-color:var(--border);box-shadow:var(--shadow-sm)}.wallet-section__head{display:flex;align-items:center;gap:.3rem;margin:.8rem .1rem .5rem}.wallet-section__title{font-size:var(--fs-md);font-weight:800;color:var(--text)}.wallet-section__sub{margin-left:auto;font-size:var(--fs-xs);color:var(--muted)}.wallet-themes{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-8)}.wallet-theme{display:flex;flex-direction:column;align-items:center;gap:.3rem;padding:.35rem .3rem .4rem;background:var(--surface-2);border:var(--bw) solid var(--border);border-radius:var(--r-md);min-width:0;transition:transform .12s ease,border-color .15s ease}.wallet-theme--on{border-color:var(--primary);background:var(--primary-light-2)}.wallet-theme--pressed{transform:scale(.95)}.wallet-theme__mini{width:100%;height:3.1rem;border-radius:var(--r-sm);border:var(--bw) solid;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.1rem;overflow:hidden;box-sizing:border-box}.wallet-theme__pinyin{font-size:.45rem;font-weight:800;letter-spacing:.05rem;line-height:1.2}.wallet-theme__char{font-family:var(--font-serif);font-size:1.2rem;font-weight:500;line-height:1.2}.wallet-theme__name{font-size:.525rem;font-weight:700;color:var(--text-2);white-space:nowrap}.wallet-theme__state{font-size:.5rem;font-weight:700;color:var(--primary-deep);line-height:1.4}.wallet-theme__state--on{color:var(--on-primary-light);background:var(--primary-light);border-radius:var(--r-full);padding:.05rem .4rem}.wallet-theme__price{display:inline-flex;align-items:center;gap:.15rem;font-size:.5rem;font-weight:800;color:#b45309;font-variant-numeric:tabular-nums}.wallet-stickers{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-8)}.wallet-sticker{height:3.6rem;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.2rem;background:var(--surface-2);border:var(--bw) solid var(--border);border-radius:var(--r-md);transition:transform .12s ease,border-color .15s ease,box-shadow .15s ease}.wallet-sticker--owned{background:var(--surface);border-color:#fde68a;box-shadow:0 .15rem .5rem #f59e0b29,var(--shadow-sm)}.wallet-sticker--pressed{transform:scale(.93)}.wallet-sticker__name{font-size:.475rem;font-weight:600;color:var(--muted)}.wallet-sticker__price{display:inline-flex;align-items:center;gap:.1rem;padding:.05rem .35rem;font-size:.475rem;font-weight:800;color:#b45309;background:#fffbeb;border:.05rem solid #fde68a;border-radius:var(--r-full);font-variant-numeric:tabular-nums}.wallet-ledger__group{margin-top:.7rem}.wallet-ledger__day{display:block;font-size:var(--fs-xs);font-weight:800;color:var(--muted);margin-bottom:.4rem;padding-left:.1rem}.wallet-ledger__row{display:flex;align-items:center;gap:.5rem;padding:.45rem .1rem;border-bottom:.05rem dashed var(--border-light)}.wallet-ledger__row:last-child{border-bottom:none}.wallet-ledger__icon{flex-shrink:0;width:1.6rem;height:1.6rem;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center}.wallet-ledger__icon--earn{background:#fffbeb;border:.05rem solid #fde68a}.wallet-ledger__icon--spend{background:var(--coral-light);border:.05rem solid var(--coral-border)}.wallet-ledger__body{flex:1;min-width:0;display:flex;flex-direction:column}.wallet-ledger__label{font-size:var(--fs-sm);font-weight:700;color:var(--text-2)}.wallet-ledger__time{margin-top:.1rem;font-size:.5rem;font-weight:600;color:var(--muted-2);font-variant-numeric:tabular-nums}.wallet-ledger__amt{font-size:var(--fs-md);font-weight:800;font-variant-numeric:tabular-nums}.wallet-ledger__amt--earn{color:#b45309}.wallet-ledger__amt--spend{color:var(--text-2)}.wallet-ledger__empty{text-align:center;padding:1.5rem 0 .5rem;font-size:var(--fs-sm);color:var(--muted)}.index-page{padding-top:var(--space-8)}.list{margin-top:var(--space-16);display:flex;flex-direction:column;gap:var(--space-14)}.list-item{display:flex;align-items:center;gap:var(--space-14);background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-xl);padding:var(--space-16) var(--space-14) var(--space-16) var(--space-16);box-shadow:var(--edge-paper);overflow:hidden;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease,background .16s ease;cursor:pointer}@media (hover: hover){.list-item:hover{transform:translateY(-.1rem);border-color:var(--border-strong);box-shadow:0 .35rem #966e4817;background:var(--surface-2)}}.list-item:active,.list-item--pressed{transform:translateY(var(--press-y));box-shadow:var(--edge-paper-press);border-color:var(--border-strong)}.list-item__icon{flex-shrink:0;width:2.3rem;height:2.3rem;border-radius:var(--r-full);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-inset);border-radius:var(--r-md);background:linear-gradient(135deg,var(--primary-light) 0%,var(--primary-light-2) 100%);border:var(--bw) solid var(--primary-border);font-size:var(--fs-h2);line-height:1;transform:rotate(-3deg)}.list-item__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:var(--space-6);padding-right:var(--space-8)}.list-name{font-size:var(--fs-body);font-weight:800;color:var(--text);line-height:1.35;letter-spacing:.01rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.list-meta{display:inline-flex;align-items:center;gap:var(--space-7);font-size:var(--fs-sm);color:var(--muted);line-height:1}.list-meta__dot{width:.3rem;height:.3rem;border-radius:var(--r-full);background:var(--primary);box-shadow:var(--ring-primary);flex-shrink:0}.list-progress{height:.3rem;background:var(--bg-deep);border-radius:var(--r-full);overflow:hidden;margin-top:var(--space-2)}.list-progress__fill{height:100%;background:linear-gradient(90deg,var(--primary) 0%,var(--primary-deep) 100%);border-radius:var(--r-full);transition:width .42s cubic-bezier(.2,.8,.2,1)}.list-item--custom{gap:var(--space-10);padding-right:var(--space-12)}.list-item--custom .list-item__body{padding-right:0}.list-item--custom .list-item__pick{margin-left:0;padding:var(--space-10) var(--space-14)}.list-item__pick{flex-shrink:0;align-self:center;padding:var(--space-6) var(--space-12);margin-left:var(--space-4);font-size:var(--fs-sm);font-weight:700;color:var(--on-primary-light);background:var(--primary-light);border:var(--bw) solid var(--primary-border-strong);border-radius:var(--r-full);line-height:1;cursor:pointer;transition:background .15s ease,border-color .15s ease,transform .1s ease}.list-item__pick:active,.list-item__pick--pressed{transform:scale(.96);background:var(--primary-light-2)}@media (hover: hover){.list-item__pick:hover{background:var(--primary-light-2);border-color:var(--primary-border-strong)}}.list-item__track{flex-shrink:0;align-self:center;width:1.5rem;height:1.5rem;display:flex;align-items:center;justify-content:center;font-size:.85rem;line-height:1;color:var(--muted-3);cursor:pointer;transition:transform .1s ease,color .15s ease}.list-item__track--on{color:var(--primary-deep)}.list-item__track--pressed{transform:scale(.85)}.list-item__go{flex-shrink:0;align-self:center;display:flex;align-items:center;gap:var(--space-2);margin-left:var(--space-4);font-size:var(--fs-sm);font-weight:700;color:var(--primary);line-height:1;white-space:nowrap}.go-arrow{width:.3rem;height:.3rem;flex-shrink:0;border-top:var(--bw) solid var(--primary);border-right:var(--bw) solid var(--primary);transform:rotate(45deg)}.picker-mask{position:fixed;inset:0;background:var(--scrim);backdrop-filter:blur(.3rem);-webkit-backdrop-filter:blur(.3rem);z-index:var(--z-mask);animation:maskIn .2s ease;display:flex;align-items:flex-end;justify-content:center}.picker{width:100%;max-width:var(--content-max);display:flex;flex-direction:column;background:var(--surface);border-radius:var(--r-xl) var(--r-xl) 0 0;padding:var(--space-16);box-shadow:var(--shadow-float);animation:sheetIn .28s cubic-bezier(.2,.8,.2,1);max-height:78vh;min-height:0;overflow:hidden}.picker__title{font-size:var(--fs-h2);font-weight:800;color:var(--text);margin-bottom:var(--space-12)}.info-dot{margin-left:var(--space-8);padding:var(--space-4) var(--space-6);font-size:var(--fs-sm);font-weight:400;color:var(--muted)}.gloss{margin-bottom:var(--space-10);background:var(--surface-2);border:var(--bw) solid var(--border);border-radius:var(--r-md);padding:var(--space-8) var(--space-10);display:flex;flex-direction:column;gap:var(--space-4)}.gloss__row{font-size:var(--fs-xs);line-height:1.6;color:var(--muted)}.gloss__term{font-weight:800;color:var(--primary-deep)}.picker__resume{display:flex;align-items:center;gap:var(--space-8);padding:var(--space-10) var(--space-12);margin-bottom:var(--space-10);background:var(--primary-light-2);border:var(--bw) solid var(--primary-border-strong);border-radius:var(--r-md);transition:transform .08s ease,background .12s ease}.picker__resume--pressed{transform:scale(.985)}.picker__resume-label{flex:1;min-width:0;font-size:var(--fs-sm);font-weight:700;color:var(--primary-deep);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-variant-numeric:tabular-nums}.picker__resume-go{flex-shrink:0;font-size:var(--fs-h2);line-height:1;color:var(--primary-deep);font-weight:300}.picker__modes{display:flex;gap:var(--space-8);margin-bottom:var(--space-8)}.picker__mode{flex:1 1 0;min-height:2.2rem;box-sizing:border-box;display:flex;align-items:center;justify-content:center;padding:var(--space-9) 0;border-radius:var(--r-full);background:var(--surface-2);border:var(--bw) solid var(--border);font-size:var(--fs-sm);font-weight:700;color:var(--muted);text-align:center;transition:background .12s ease,color .12s ease,border-color .12s ease}.picker__mode--on{background:var(--primary);border-color:var(--primary-deep);color:var(--on-primary);box-shadow:var(--shadow-primary)}.picker__all{display:flex;align-items:center;gap:var(--space-10);padding:var(--space-10) var(--space-6);margin-bottom:var(--space-6);font-size:var(--fs-body);font-weight:600;color:var(--text);border-bottom:var(--bw) solid var(--border);cursor:pointer}.picker__list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:var(--space-6)}.picker__filter-bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:var(--space-8);padding:var(--space-4) var(--space-4) var(--space-8)}.picker__filter-tabs{display:flex;align-items:center;gap:var(--space-6);overflow-x:auto}.picker__filter-tab{padding:.15rem .5rem;border-radius:var(--r-full);border:var(--bw) solid var(--border);background:var(--surface);color:var(--muted);font-size:.55rem;font-weight:700;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;transition:all .12s ease}.picker__filter-tab--active{background:var(--primary);border-color:var(--primary-deep);color:#fff;box-shadow:0 .1rem .2rem #14b8a640}.picker__legend{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-10);font-size:var(--fs-xs);color:var(--muted)}.picker__legend-item{display:flex;align-items:center;gap:.2rem}.picker__legend-dot{width:.4rem;height:.4rem;border-radius:var(--r-full)}.picker__legend-dot--mastered{background:var(--primary)}.picker__legend-dot--fresh{background:var(--surface-2);border:.05rem dashed var(--muted);box-sizing:border-box}.picker__legend-dot--due{background:var(--sun)}.picker__legend-dot--wrong{background:var(--coral)}.picker__collapse-toggle{font-size:.55rem;font-weight:700;color:var(--primary-deep);background:var(--primary-light-2);border:var(--bw) solid var(--primary-border);padding:.15rem .5rem;border-radius:var(--r-full);cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;white-space:nowrap}.picker__collapse-toggle--pressed{transform:scale(.96)}.picker__card{border-radius:var(--r-lg);border:var(--bw) solid var(--border);background:var(--surface);transition:all .15s ease;overflow:hidden;flex-shrink:0}.picker__card--collapsed{display:flex;align-items:center;gap:var(--space-10);padding:var(--space-10) var(--space-12);background:var(--surface-2);cursor:pointer}@media (hover: 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var(--border);color:var(--muted);white-space:nowrap}.picker__scope-tag--on{background:var(--primary-light-2);border-color:var(--primary-border);color:var(--primary-deep)}.picker__scope-hint{margin-left:auto;flex-shrink:0;font-size:.55rem;font-weight:600;color:var(--muted);white-space:nowrap}.picker__select-all-hint{flex-shrink:0;font-size:.55rem;font-weight:700;color:var(--primary-deep);white-space:nowrap}.picker__confirm{margin-top:var(--space-14);padding:var(--space-12);text-align:center;font-size:var(--fs-body);font-weight:800;letter-spacing:.05rem;color:var(--on-primary);background:var(--primary);border:var(--bw) solid var(--primary-deep);border-radius:var(--r-full);box-shadow:var(--shadow-primary);cursor:pointer;transition:filter .12s ease,transform .1s ease,box-shadow .1s ease}.picker__confirm:active,.picker__confirm--pressed{transform:translateY(var(--press-y));box-shadow:var(--shadow-primary-press)}@media (hover: hover){.picker__confirm:hover{filter:brightness(1.04)}}.picker__round-hint{margin-top:var(--space-10);margin-bottom:var(--space-4);display:flex;flex-direction:column;align-items:center;gap:var(--space-2);font-size:var(--fs-xs);line-height:1.6;color:var(--muted);text-align:center;font-variant-numeric:tabular-nums}.hero{position:relative;margin-top:var(--space-16);background:linear-gradient(135deg,var(--primary-light) 0%,var(--primary-light-2) 100%);border:var(--bw) solid var(--primary-border);border-radius:var(--r-xl);padding:var(--space-20) var(--space-16);box-shadow:var(--edge-paper);cursor:pointer}.hero:active,.hero--pressed{transform:translateY(var(--press-y));box-shadow:var(--edge-paper-press)}@media (hover: hover){.hero:hover{filter:brightness(1.02)}}.hero--pressed{transform:translateY(var(--press-y));box-shadow:var(--edge-paper-press)}.hero__greet{font-size:var(--fs-sm);font-weight:700;color:var(--primary-deep);letter-spacing:.03rem}.hero__title{margin-top:var(--space-6);padding-right:var(--space-24);font-size:var(--fs-title);font-weight:800;color:var(--text);letter-spacing:.05rem;line-height:1.2}.hero__meta{margin-top:var(--space-6);padding-right:var(--space-24);font-size:var(--fs-sm);line-height:1.6;color:var(--muted);font-variant-numeric:tabular-nums}.hero__streak{margin-top:var(--space-12);align-self:flex-start;display:inline-block;padding:var(--space-6) var(--space-14);background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-full);box-shadow:var(--shadow-sm);font-size:var(--fs-sm);font-weight:700;color:var(--primary-deep);font-variant-numeric:tabular-nums}.hero__go{position:absolute;right:var(--space-16);top:50%;transform:translateY(-50%);color:var(--primary)}.hero--redesign{padding:var(--space-20) var(--space-16);display:flex;flex-direction:column;gap:var(--space-14);cursor:default}.hero__head{display:flex;align-items:center;justify-content:space-between}.hero__streak-pill{display:inline-flex;align-items:center;gap:.15rem;padding:.15rem .5rem;background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-full);font-size:var(--fs-xs);font-weight:700;color:#b45309;box-shadow:var(--shadow-sm)}.hero__streak-pill--back{color:var(--text-2);box-shadow:none}.hero__metrics{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-10)}.hero__metric{background:var(--surface);border-radius:var(--r-lg);padding:var(--space-12) var(--space-14);border:var(--bw) solid var(--border);box-shadow:var(--shadow-sm)}.hero__metric--due{border-color:#fecdd3;background:linear-gradient(180deg,#ffffff 0%,#fff1f2 100%)}.hero__metric--fresh{border-color:var(--primary-border);background:linear-gradient(180deg,#ffffff 0%,#f0fdfa 100%)}.hero__metric-label{display:flex;align-items:center;gap:.3rem;font-size:var(--fs-xs);font-weight:700;color:var(--muted)}.hero__metric-dot{width:.4rem;height:.4rem;border-radius:var(--r-full)}.hero__metric-dot--due{background:var(--coral)}.hero__metric-dot--fresh{background:var(--primary)}.hero__metric-val{margin-top:var(--space-6);display:flex;align-items:baseline;gap:.2rem}.hero__metric-num{font-size:1.3rem;font-weight:900;line-height:1}.hero__metric-num--due{color:var(--coral-deep)}.hero__metric-num--fresh{color:var(--primary-deep)}.hero__metric-unit{font-size:var(--fs-xs);font-weight:600;color:var(--muted)}.hero__cta{width:100%;height:2.6rem;font-size:.9rem;letter-spacing:.05rem}.hero__cta-icon{font-size:.75rem}.hero__taskrow{display:flex;align-items:center;justify-content:space-between;gap:var(--space-12)}.hero__tasktext{display:flex;flex-direction:column;gap:var(--space-6);min-width:0;flex:1}.hero__task-pills{display:flex;align-items:center;gap:var(--space-6);flex-wrap:wrap;align-self:flex-start}.hero__task-eyebrow{font-size:.55rem;font-weight:800;letter-spacing:.05rem;color:var(--primary-deep);background:var(--primary-light);padding:.1rem .4rem;border-radius:var(--r-full)}.hero__quota-pill{font-size:.55rem;font-weight:800;letter-spacing:.025rem;color:var(--text-2);background:var(--surface-2);border:var(--bw) solid var(--border);padding:.1rem .4rem;border-radius:var(--r-full)}.hero__quota-num{color:var(--text);font-weight:900;font-variant-numeric:tabular-nums}.hero__quota-pill--done{color:var(--text);background:var(--sun-light);border-color:var(--sun)}.hero__quota-pill--over{color:var(--primary-deep);background:var(--primary-light-2);border-color:var(--primary-border-strong)}.hero__quota-pill--over 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var(--border);box-shadow:var(--shadow-sm);cursor:pointer}.textbook-card--pressed{transform:scale(.99)}.textbook-card__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-10)}.textbook-card__title-wrap{display:flex;align-items:center;gap:.3rem}.textbook-card__title{font-size:var(--fs-body);font-weight:800;color:var(--text)}.textbook-card__link{font-size:var(--fs-xs);font-weight:700;color:var(--primary-deep)}.textbook-card__row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-8);margin-bottom:var(--space-8)}.textbook-card__name{flex:1;min-width:0;font-size:var(--fs-sm);font-weight:700;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.textbook-card__count{flex-shrink:0;font-size:var(--fs-xs);font-weight:700;color:var(--primary-deep);font-variant-numeric:tabular-nums}.textbook-card__track{width:100%;height:.4rem;background:var(--border-light);border-radius:.2rem;overflow:hidden}.textbook-card__fill{height:100%;background:linear-gradient(90deg,var(--primary) 0%,#34d399 100%);border-radius:.2rem;transition:width .25s ease}.topwrong-card{margin-top:var(--space-14);padding:var(--space-16);border-radius:var(--r-xl);border:var(--bw) solid var(--border);box-shadow:var(--shadow-sm)}.topwrong-card__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-12)}.topwrong-card__title-wrap{display:flex;align-items:center;gap:.3rem}.topwrong-card__title{font-size:var(--fs-body);font-weight:800;color:var(--text)}.topwrong-card__count{font-size:var(--fs-xs);font-weight:600;color:var(--muted)}.topwrong-card__scroll{width:100%;white-space:nowrap}.topwrong-card__shelf{display:inline-grid;grid-template-rows:repeat(2,auto);grid-auto-flow:column;grid-auto-columns:4rem;gap:var(--space-8);vertical-align:top}.topwrong-chip{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-10) var(--space-4);background:var(--surface-2);border:.075rem solid 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var(--primary-border-strong);border-radius:var(--r-md);font-size:var(--fs-13);line-height:1.5;color:var(--on-primary-light)}.topwrong-guide__start{width:100%;height:2.6rem;margin-top:var(--space-14);font-size:.9rem;letter-spacing:.05rem}.topwrong-guide__later{margin-top:var(--space-6);min-height:2.2rem;display:flex;align-items:center;justify-content:center;font-size:var(--fs-sm);font-weight:600;color:var(--muted);cursor:pointer;transition:color .15s ease,opacity .1s ease}@media (hover: hover){.topwrong-guide__later:hover{color:var(--primary-deep)}}.index-picklink{margin-top:var(--space-16);min-height:2.2rem;box-sizing:border-box;display:flex;align-items:center;justify-content:center;gap:var(--space-4);text-align:center;font-size:var(--fs-sm);font-weight:600;color:var(--muted);padding:var(--space-10);cursor:pointer;transition:color .15s ease,opacity .1s ease}@media (hover: hover){.index-picklink:hover{color:var(--primary-deep)}}.index-picklink--pressed{opacity:.6;color:var(--primary-deep)}.index-foot{margin-top:var(--space-18);text-align:center;font-size:var(--fs-xs);color:var(--muted);letter-spacing:.015rem;padding:var(--space-6) 0 var(--space-10)}.settings-mask{position:fixed;inset:0;background:var(--scrim);backdrop-filter:blur(.3rem);-webkit-backdrop-filter:blur(.3rem);z-index:var(--z-mask);animation:maskIn .2s ease;display:flex;align-items:flex-end;justify-content:center}.settings{width:100%;max-width:var(--content-max);display:flex;flex-direction:column;background:var(--surface);border-radius:var(--r-xl) var(--r-xl) 0 0;padding:var(--space-16);box-shadow:var(--shadow-float);animation:sheetIn .28s 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hover){.settings__close:hover{filter:brightness(1.04)}}.switch{flex-shrink:0;width:2.3rem;height:1.3rem;border-radius:var(--r-full);background:var(--muted-3);position:relative;transition:background .18s ease}.switch:after{content:"";position:absolute;top:.15rem;left:.15rem;width:1rem;height:1rem;border-radius:var(--r-full);background:var(--surface);box-shadow:var(--shadow-sm);transition:transform .18s ease}.switch--on{background:var(--primary)}.switch--on:after{transform:translate(1rem)}.seg{flex-shrink:0;display:flex;background:var(--surface-2);border:var(--bw) solid var(--border);border-radius:var(--r-full);padding:.15rem;gap:.15rem}.seg__opt{padding:.3rem .7rem;border-radius:var(--r-full);font-size:var(--fs-sm);font-weight:700;color:var(--muted);line-height:1.4}.seg__opt--pressed{filter:brightness(.96)}.seg__opt--on{background:var(--primary);color:var(--on-primary)}.stepper{flex-shrink:0;display:flex;align-items:center;background:var(--surface-2);border:var(--bw) solid 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1.2rem 0rem,#d2402e 1.15rem,transparent 1.2rem);background-size:2.4rem 1.25rem;background-repeat:repeat-x}.onboard-lights{position:absolute;top:.7rem;left:0;right:0;display:flex;justify-content:center;gap:1.2rem}.onboard-lamp{width:.65rem;height:.65rem;border-radius:var(--r-full);background:#ffcf4d;box-shadow:0 0 0 .15rem #ffcf4d40,inset 0 -.15rem #c7611d80;animation:obTwinkle 1.4s ease-in-out infinite}.onboard-lamp--alt{animation-delay:.7s}@keyframes obTwinkle{0%,to{opacity:1}50%{opacity:.5}}@media (prefers-reduced-motion: reduce){.onboard-lamp{animation:none;opacity:.75}.onboard-wipe{display:none}.onboard-face--cheer,.onboard-face,.onboard-ticket{animation:none}}.onboard-toprow{flex:none;display:flex;align-items:center;justify-content:space-between;padding:.6rem 1rem 0}.onboard-toprow--final{justify-content:center}.onboard-dots{display:flex;gap:.35rem}.onboard-dot{width:.35rem;height:.35rem;padding:0;border-radius:var(--r-full);background:rgba(255,242,221,.28);transition:width .2s ease,background .2s ease}.onboard-dot--on{width:1rem;background:#ffcf4d}.onboard-skip{min-height:2.2rem;display:flex;align-items:center;font-size:var(--fs-sm);font-weight:600;color:#fff2dda6;padding:0 var(--space-10);cursor:pointer}.onboard-skip--pressed{opacity:.6}.onboard-body{flex:1;display:flex;flex-direction:column;min-height:0}.onboard-stage{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;padding:0 var(--space-28);position:relative;text-align:center}.onboard-ticket{width:100%;max-width:15rem;background:#fff2dd;color:#232946;border-radius:var(--r-lg);padding:var(--space-24) var(--space-20) var(--space-20);transform:rotate(-2deg);box-shadow:0 .7rem 1.5rem #00000059;position:relative;animation:obDeal .3s cubic-bezier(.34,1.4,.5,1)}.onboard-ticket__punch{position:absolute;top:.7rem;right:.9rem;width:2.2rem;height:1.1rem;border:.1rem dashed 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72%)}.onboard-bubble{position:relative;z-index:2;max-width:12.5rem;background:#fff2dd;color:#232946;border-radius:var(--r-lg) var(--r-lg) var(--r-lg) .2rem;padding:.5rem .9rem;font-size:var(--fs-15);font-weight:700;line-height:1.65;min-width:0;white-space:normal;overflow-wrap:break-word;word-break:break-word;text-align:center}.onboard-play{position:relative;z-index:2;margin-top:.2rem;width:10.7rem;cursor:pointer}.onboard-face{min-height:12.5rem;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-6);background:#fff2dd;border-radius:var(--r-xl);box-shadow:0 .2rem #00000047;padding:var(--space-16);animation:obDeal .3s cubic-bezier(.34,1.4,.5,1)}.onboard-face--cheer{animation:obCheer .5s cubic-bezier(.34,1.56,.64,1)}@keyframes obCheer{0%{transform:scale(1)}30%{transform:scale(1.08) rotate(-2deg)}60%{transform:scale(.98) 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.2rem;background:rgba(255,242,221,.18);position:relative}.onboard-seat:before{content:"";position:absolute;left:.15rem;right:.15rem;top:-.4rem;height:.6rem;border-radius:.3rem;background:rgba(255,242,221,.18)}.onboard-seat--occupy,.onboard-seat--occupy:before{background:#d2402e}.onboard-seat--occupy{display:flex;align-items:center;justify-content:center;overflow:visible}.onboard-seat__hz{position:relative;z-index:1;font-family:var(--font-serif);font-size:.65rem;line-height:1;color:#ffcf4d}.onboard-wipe{position:absolute;inset:0;z-index:15;pointer-events:none;overflow:hidden}.onboard-wipe:before,.onboard-wipe:after{content:"";position:absolute;top:0;bottom:0;width:55%;background:#d2402e;pointer-events:auto}.onboard-wipe:before{left:0;box-shadow:inset -.6rem 0 #0000001f;animation:obWipeL .95s cubic-bezier(.65,0,.35,1) both}.onboard-wipe:after{right:0;box-shadow:inset .6rem 0 #0000001f;animation:obWipeR .95s cubic-bezier(.65,0,.35,1) both}@keyframes obWipeL{0%{transform:translate(-101%)}45%{transform:translate(0)}to{transform:translate(-101%)}}@keyframes obWipeR{0%{transform:translate(101%)}45%{transform:translate(0)}to{transform:translate(101%)}}@media (min-width: 1024px){body .index-page .hero,body .index-page .index-picklink,body .index-page .index-foot{max-width:36rem;margin-left:auto;margin-right:auto}body .picker-mask,body .settings-mask,body .history-mask{align-items:center;padding:var(--space-24)}body .picker,body .settings,body .history{border-radius:var(--r-xl);max-width:32rem;max-height:82vh}body .onboard-ticket{max-width:17rem}body .onboard-sub,body .onboard-bubble{max-width:18rem}body .onboard-play{width:12rem}body .onboard-judge,body .onboard-cta{max-width:21rem}}.whatsnew-mask{position:fixed;inset:0;background:var(--scrim);backdrop-filter:blur(.3rem);-webkit-backdrop-filter:blur(.3rem);z-index:var(--z-mask);animation:maskIn .2s ease;display:flex;align-items:center;justify-content:center;padding:var(--space-24);overflow:hidden}.whatsnew-card{width:100%;max-width:16rem;max-height:80vh;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;touch-action:pan-y;background:var(--surface);border:var(--bw-thick) solid var(--text);border-radius:var(--r-xl);box-shadow:var(--shadow-float);padding:var(--space-20) var(--space-16) var(--space-16);display:flex;flex-direction:column;align-items:stretch;animation:sheetIn .28s cubic-bezier(.2,.8,.2,1)}.whatsnew-eyebrow{align-self:center;font-size:var(--fs-sm);font-weight:800;letter-spacing:.1rem;color:var(--primary-deep);background:var(--primary-light-2);border:.05rem solid var(--primary-border);border-radius:var(--r-full);padding:var(--space-5) var(--space-14)}.whatsnew-title{margin-top:var(--space-10);font-size:var(--fs-h2);font-weight:800;color:var(--text);text-align:center}.whatsnew-list{margin-top:var(--space-12);display:flex;flex-direction:column;gap:var(--space-8)}.whatsnew-item{display:flex;gap:var(--space-8);align-items:flex-start;font-size:var(--fs-sm);line-height:1.65;color:var(--text-2);min-width:0;white-space:normal;overflow-wrap:break-word;word-break:break-word}.whatsnew-dot{flex:none;width:.3rem;height:.3rem;border-radius:var(--r-full);background:var(--primary);margin-top:.35rem}.whatsnew-cta{margin-top:var(--space-14);padding:var(--space-12);text-align:center;font-size:var(--fs-body);font-weight:800;letter-spacing:.05rem;color:var(--on-primary);background:var(--primary);border:var(--bw) solid var(--primary-deep);border-radius:var(--r-full);box-shadow:var(--shadow-primary);cursor:pointer;transition:filter .12s ease,transform .1s ease,box-shadow .1s ease;width:100%;box-sizing:border-box}.whatsnew-cta:active,.whatsnew-cta--pressed{transform:translateY(var(--press-y));box-shadow:var(--shadow-primary-press)}.whatsnew-cta--pressed{transform:translateY(var(--press-y-sm));box-shadow:var(--shadow-primary-press)}.hero__pills{display:flex;align-items:center;gap:.3rem;flex-shrink:0}.hero__coin-pill{display:inline-flex;align-items:center;gap:.2rem;padding:.15rem .5rem .15rem .35rem;background:var(--surface);border:var(--bw) solid #fde68a;border-radius:var(--r-full);font-size:var(--fs-xs);font-weight:800;color:#b45309;box-shadow:var(--shadow-sm);font-variant-numeric:tabular-nums;white-space:nowrap;transition:transform .12s cubic-bezier(.34,1.56,.64,1),background .15s ease}.hero__coin-pill--pressed{transform:scale(.94);background:#fffbeb}.mode-switch-slot{position:absolute;top:calc(var(--space-18) + .1rem);left:0;z-index:var(--z-card);display:flex;align-items:center}.mode-switch{display:inline-flex;align-items:center;gap:.3rem;height:1.5rem;padding:0 .45rem 0 .2rem;border-radius:var(--r-full);background:var(--surface);border:var(--bw) solid var(--border);box-shadow:var(--shadow-sm);cursor:pointer;white-space:nowrap;transition:background .18s ease,border-color .18s ease,transform .3s cubic-bezier(.34,1.56,.64,1)}.mode-switch:active,.mode-switch--pressed{transform:scale(.94)}.mode-switch__badge{width:1.1rem;height:1.1rem;border-radius:var(--r-full);display:flex;align-items:center;justify-content:center;background:var(--primary-light);flex-shrink:0}.mode-switch__glyph{font-family:var(--font-serif);font-size:var(--fs-xs);font-weight:800;color:var(--primary-deep);line-height:1}.mode-switch__glyph--pin{font-family:var(--font-pinyin-bold);font-weight:700;color:var(--pin-sky)}.mode-switch--pinyin .mode-switch__badge{background:var(--pin-sky-light)}.mode-switch__label{font-size:var(--fs-sm);font-weight:800;color:var(--text-2);letter-spacing:.02rem}.mode-switch__chev{font-size:.4rem;color:var(--muted-2);margin-left:.05rem;transition:transform .2s ease}.mode-switch--pinyin .mode-switch__chev{transform:rotate(180deg)}.mode-switch-veil{position:fixed;top:0;left:0;right:0;bottom:-100rem;background:rgba(74,52,36,.1);z-index:var(--z-mask)}.mode-switch-sheet{position:fixed;left:0;right:0;margin:0 auto;width:calc(100vw - var(--space-12) * 2);max-width:calc(var(--content-max, 28rem) - var(--space-12) * 2);top:calc(env(safe-area-inset-top,0rem) + var(--space-18) + .1rem + 1.7rem);z-index:calc(var(--z-mask) + 1);border-radius:var(--r-xl);background:var(--surface);border:var(--bw-thick) solid var(--border-strong);box-shadow:var(--shadow-float);padding:var(--space-10);transform-origin:top left;animation:modeSwitchDrop .22s cubic-bezier(.34,1.4,.64,1)}@keyframes 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.mode-switch__glyph{font-size:var(--fs-h3)}.mode-switch-sheet__body{flex:1;min-width:0;display:flex;flex-direction:column}.mode-switch-sheet__name{font-size:var(--fs-15);font-weight:800;color:var(--text)}.mode-switch-sheet__desc{font-size:var(--fs-xs);color:var(--muted);margin-top:.1rem}.mode-switch-sheet__check{font-size:var(--fs-15);font-weight:800;color:var(--primary);flex-shrink:0;min-width:.7rem;text-align:center}.mode-switch-sheet__opt--pinyin .mode-switch-sheet__check{color:var(--pin-sky)}.index-page--pin .app-header__title:after{background:linear-gradient(90deg,var(--pin-sky) 0%,var(--sun) 52%,var(--coral) 100%);box-shadow:0 .1rem .3rem var(--pin-glow)}.hero--pin{border-color:var(--pin-sky-border)}.hero--pin .hero__metric-dot--fresh{background:var(--pin-sky)}.hero--pin .hero__metric-num--fresh{color:var(--pin-sky-deep)}.topwrong-chip__char--pin{font-family:var(--font-pinyin-bold);font-size:var(--fs-h3);font-weight:700;color:var(--pin-ink)}.topwrong-chip__py{font-family:var(--font-pinyin);font-size:var(--fs-xs);color:var(--muted)}.pincard{margin-top:var(--space-12);padding:var(--space-12) var(--space-14);cursor:pointer}.pincard--pressed{transform:translateY(.05rem)}.pincard__head{display:flex;align-items:center;justify-content:space-between}.pincard__title-wrap{display:flex;align-items:center;gap:.3rem}.pincard__title{font-size:var(--fs-md);font-weight:800;color:var(--text)}.pincard__link{font-size:var(--fs-xs);font-weight:700;color:var(--pin-sky)}.pincard__grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-8);margin-top:var(--space-10)}.pincard__cell{background:var(--surface-2);border:var(--bw) solid var(--border);border-radius:var(--r-md);padding:var(--space-8) var(--space-10)}.pincard__cell--done{border-color:var(--pin-sky-border);background:var(--pin-sky-light)}.pincard__name{font-size:var(--fs-xs);font-weight:700;color:var(--text-2)}.pincard__meta{margin-top:.1rem;display:flex;align-items:baseline;gap:.1rem}.pincard__num{font-family:var(--font-pinyin-bold);font-size:var(--fs-body);font-weight:700;color:var(--pin-sky)}.pincard__unit{font-size:var(--fs-2xs);color:var(--muted)}.pincard__track{height:.25rem;border-radius:var(--r-full);background:var(--border-light);margin-top:.25rem;overflow:hidden}.pincard__fill{display:block;height:100%;border-radius:var(--r-full);background:var(--pin-sky);min-width:.1rem}.settings__title{display:flex;align-items:center;justify-content:center;gap:.35rem}.settings__badge{display:inline-flex;align-items:center;gap:.2rem;padding:.1rem .45rem;border-radius:var(--r-full);font-size:var(--fs-2xs);font-weight:800}.settings__badge--lit{background:var(--primary-light);color:var(--primary-deep)}.settings__badge--pin{background:var(--pin-sky-light);color:var(--pin-sky)}.switch--pin.switch--on{background:var(--pin-sky)}.stepper--pin .stepper__btn{color:var(--pin-sky-deep)}.pin-empty{margin-top:var(--space-12);padding:var(--space-24) var(--space-18);display:flex;flex-direction:column;align-items:center;text-align:center}.pin-empty__glyph{width:3.3rem;height:3.3rem;margin-bottom:var(--space-12);border-radius:var(--r-xl);display:flex;align-items:center;justify-content:center;background:var(--pin-sky-light);border:.1rem dashed var(--pin-sky-border);font-family:var(--font-pinyin-bold);font-size:1.5rem;font-weight:700;color:var(--pin-sky)}.pin-empty__title{font-size:var(--fs-body);font-weight:800;color:var(--text)}.pin-empty__desc{margin-top:.3rem;font-size:var(--fs-sm);line-height:1.75;color:var(--muted)}.pin-empty__cta{margin-top:var(--space-16);width:100%;height:2.6rem;flex-shrink:0;font-size:.85rem}.pin-empty__cta-label{letter-spacing:.025rem}.pin-empty__cta-go{font-size:1rem;line-height:1;opacity:.85;transform:translateY(-.025rem)}.bk-page{padding-top:var(--space-8)}.bk-header__action{position:absolute;top:calc(var(--space-18) + .3rem);right:0}.bk-header__muted{font-size:var(--fs-sm);font-weight:700;color:var(--primary-deep);padding:var(--space-5) var(--space-10);cursor:pointer}.bk-btn{width:100%;min-height:2.3rem;padding:0 var(--space-18);font-size:var(--fs-body);margin-top:var(--space-16);box-sizing:border-box}.bk-btn--ghost{background:var(--surface);color:var(--primary-deep);border-color:var(--primary-border);box-shadow:0 .2rem 0 var(--border-strong)}.bk-btn--ghost:active,.bk-btn--ghost.toy-btn--pressed{box-shadow:0 .05rem 0 var(--border-strong)}.bk-hint{margin-top:var(--space-12);font-size:var(--fs-xs);line-height:1.6;color:var(--muted);text-align:center}.bk-textlink{margin-top:var(--space-16);text-align:center;font-size:var(--fs-sm);font-weight:700;color:var(--primary-deep);cursor:pointer}.bk-textlink--danger{color:var(--coral-deep)}.bk-cover{flex-shrink:0;width:2.7rem;height:3.5rem;border-radius:.5rem .6rem .6rem .5rem;display:flex;align-items:center;justify-content:center;position:relative;box-shadow:0 .2rem #966e4824,var(--shadow-sm);border:var(--bw) solid rgba(255,255,255,.65);overflow:hidden}.bk-cover:before{content:"";position:absolute;left:0;top:0;bottom:0;width:.3rem;background:rgba(255,255,255,.35)}.bk-cover--teal{background:linear-gradient(135deg,#5eead4 0%,#14b8a6 100%)}.bk-cover--sun{background:linear-gradient(135deg,#fde68a 0%,#f59e0b 100%)}.bk-cover--coral{background:linear-gradient(135deg,#fecdd3 0%,#fb7185 100%)}.bk-cover__char{font-size:1.1rem;font-weight:800;color:#fff;text-shadow:0 .1rem .2rem rgba(0,0,0,.16);line-height:1}.bk-cover--sm{width:2rem;height:2.6rem;border-radius:.4rem .5rem .5rem .4rem}.bk-cover--sm .bk-cover__char{font-size:.85rem}.bk-cover--tile{width:2.3rem;height:3rem;border-radius:.4rem .5rem .5rem .4rem}.bk-cover--tile .bk-cover__char{font-size:.95rem}.bk-shelf{display:flex;align-items:center;gap:var(--space-12);padding:var(--space-16);background:linear-gradient(135deg,var(--primary-light-2) 0%,var(--surface) 70%);border:var(--bw) solid var(--primary-border);border-radius:var(--r-xl);box-shadow:var(--edge-paper)}.bk-shelf__body{flex:1;min-width:0}.bk-shelf__label{font-size:var(--fs-xs);font-weight:800;color:var(--primary-deep);letter-spacing:.02rem}.bk-shelf__nums{margin-top:var(--space-6);display:flex;align-items:baseline;gap:var(--space-4)}.bk-shelf__num{font-size:var(--fs-h2);font-weight:800;color:var(--text);line-height:1}.bk-shelf__unit{font-size:var(--fs-xs);color:var(--muted);margin-right:var(--space-6)}.bk-shelf__add{flex-shrink:0;padding:var(--space-8) var(--space-14);border-radius:var(--r-full);background:var(--surface);border:var(--bw) solid var(--primary-border);color:var(--primary-deep);font-size:var(--fs-sm);font-weight:800;box-shadow:var(--shadow-sm);cursor:pointer}.bk-shelf__add--pressed{transform:scale(.96)}.bk-recent{margin-top:var(--space-12);display:flex;align-items:center;gap:var(--space-12);padding:var(--space-12) var(--space-14);background:var(--surface-2);border:var(--bw) dashed var(--border-strong);border-radius:var(--r-lg);cursor:pointer}.bk-recent--pressed{opacity:.72}.bk-recent__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:.1rem}.bk-recent__tag{font-size:.5rem;font-weight:800;color:var(--muted);letter-spacing:.03rem}.bk-recent__name{font-size:var(--fs-sm);font-weight:800;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bk-recent__meta{font-size:var(--fs-xs);color:var(--muted)}.bk-recent__go{flex-shrink:0;font-size:var(--fs-sm);font-weight:800;color:var(--primary-deep)}.bk-sec{margin:var(--space-20) var(--space-2) var(--space-10);display:flex;align-items:baseline;justify-content:space-between}.bk-sec__label{font-size:var(--fs-body);font-weight:800;color:var(--text)}.bk-sec__hint{font-size:var(--fs-xs);color:var(--muted)}.bk-list{display:flex;flex-direction:column;gap:var(--space-12)}.bk-card{display:flex;align-items:center;gap:var(--space-14);padding:var(--space-14);background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-xl);box-shadow:var(--edge-paper);cursor:pointer;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.bk-card--pressed{transform:translateY(.05rem);box-shadow:var(--edge-paper-press)}.bk-card__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:var(--space-6)}.bk-card__name{font-size:var(--fs-body);font-weight:800;color:var(--text);line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bk-card__meta{font-size:var(--fs-xs);color:var(--muted);line-height:1.2}.bk-card__act{flex-shrink:0;display:flex;align-items:center;gap:.1rem;padding:var(--space-8) var(--space-10);border-radius:var(--r-full);color:var(--primary-deep);font-size:var(--fs-xs);font-weight:800;cursor:pointer}.bk-card__act--pressed{background:var(--primary-light-2)}.bk-arrow{font-size:var(--fs-sm);line-height:1}.bk-badges{display:flex;flex-wrap:wrap;gap:var(--space-6)}.bk-badge{display:inline-flex;align-items:center;padding:.1rem var(--space-8);border-radius:var(--r-full);background:var(--surface-2);border:var(--bw) solid var(--border);font-size:.5rem;font-weight:700;color:var(--muted);line-height:1.5}.bk-badge--source{background:var(--primary-light-2);border-color:var(--primary-border);color:var(--primary-deep)}.bk-progress{height:.3rem;background:var(--bg-deep);border-radius:var(--r-full);overflow:hidden}.bk-progress__fill{height:100%;background:linear-gradient(90deg,var(--primary) 0%,var(--primary-deep) 100%);border-radius:var(--r-full);transition:width .42s cubic-bezier(.2,.8,.2,1)}.bk-dot{margin:0 var(--space-6);color:var(--muted-2)}.bk-empty{margin-top:var(--space-20);padding:var(--space-24) var(--space-18);text-align:center;background:var(--surface);border:var(--bw) dashed var(--border-strong);border-radius:var(--r-2xl, 1.4rem)}.bk-empty__icon{font-size:2.3rem;line-height:1}.bk-empty__title{margin-top:var(--space-12);font-size:var(--fs-h2);font-weight:800;color:var(--text)}.bk-empty__desc{margin:var(--space-10) auto 0;max-width:15rem;font-size:var(--fs-sm);line-height:1.7;color:var(--muted)}.bk-empty__actions{margin-top:var(--space-16)}.bk-empty__chips{margin-top:var(--space-12);display:flex;justify-content:center;gap:var(--space-8)}.bk-empty__chip{padding:var(--space-4) var(--space-10);border-radius:var(--r-full);background:var(--surface-2);border:var(--bw) solid var(--border);font-size:var(--fs-xs);color:var(--muted)}.bk-empty__guide{margin-top:var(--space-20);display:flex;align-items:center;justify-content:center;gap:var(--space-8);font-size:var(--fs-xs);font-weight:700;color:var(--primary-deep)}.bk-empty__arrow{color:var(--muted-2)}.bk-empty__link{margin-top:var(--space-16);font-size:var(--fs-xs);color:var(--muted)}.bk-note{margin-top:var(--space-16);padding:var(--space-12) var(--space-14);background:var(--surface-2);border:var(--bw) solid var(--border);border-radius:var(--r-lg);display:flex;flex-direction:column;gap:var(--space-4)}.bk-note__title{font-size:var(--fs-xs);font-weight:800;color:var(--text)}.bk-note__text{font-size:var(--fs-xs);line-height:1.65;color:var(--muted)}.bk-preview{display:flex;align-items:center;gap:var(--space-14);padding:var(--space-16);background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-xl);box-shadow:var(--edge-paper)}.bk-preview__body{min-width:0;display:flex;flex-direction:column;gap:var(--space-6)}.bk-preview__name{font-size:var(--fs-body);font-weight:800;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bk-preview__meta{font-size:var(--fs-xs);color:var(--muted)}.bk-field{margin-top:var(--space-20)}.bk-field__label{display:block;margin-bottom:var(--space-8);font-size:var(--fs-sm);font-weight:800;color:var(--text)}.bk-input{display:flex;align-items:center;min-height:2.2rem;padding:0 var(--space-12);background:var(--surface);border:var(--bw) solid var(--border-strong);border-radius:var(--r-md)}.bk-input:focus-within{border-color:var(--primary);box-shadow:var(--ring-primary)}.bk-input__inner{flex:1;min-width:0;height:2.1rem;font-size:var(--fs-body);color:var(--text);background:transparent}.bk-input--py{margin-top:var(--space-12)}.bk-suggests{margin-top:var(--space-8);display:flex;flex-wrap:wrap;gap:var(--space-8)}.bk-suggest{padding:var(--space-5) var(--space-10);border-radius:var(--r-full);background:var(--primary-light-2);border:var(--bw) solid var(--primary-border);color:var(--primary-deep);font-size:var(--fs-xs);font-weight:700;cursor:pointer}.bk-chips{display:flex;flex-wrap:wrap;gap:var(--space-8)}.bk-chip{min-width:2.1rem;padding:var(--space-6) var(--space-10);text-align:center;border-radius:var(--r-full);background:var(--surface);border:var(--bw) solid var(--border);font-size:var(--fs-xs);font-weight:700;color:var(--muted);cursor:pointer}.bk-chip--on{background:var(--primary-light);border-color:var(--primary);color:var(--primary-deep)}.bk-swatches{display:flex;gap:var(--space-12)}.bk-swatch{width:2.2rem;height:2.2rem;border-radius:var(--r-md);border:.15rem solid transparent;box-shadow:var(--shadow-sm);cursor:pointer}.bk-swatch--on{border-color:var(--text);transform:scale(1.04)}.bk-swatch--teal{background:linear-gradient(135deg,#5eead4 0%,#14b8a6 100%)}.bk-swatch--sun{background:linear-gradient(135deg,#fde68a 0%,#f59e0b 100%)}.bk-swatch--coral{background:linear-gradient(135deg,#fecdd3 0%,#fb7185 100%)}.bk-steps{display:flex;align-items:center;justify-content:center;gap:var(--space-8);margin-bottom:var(--space-14);font-size:var(--fs-xs);font-weight:700;color:var(--muted)}.bk-steps__item--on{color:var(--primary-deep)}.bk-steps__line{width:1.1rem;height:var(--bw);background:var(--border-strong)}.bk-strip{display:flex;align-items:center;gap:var(--space-12);padding:var(--space-12) var(--space-14);background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-lg)}.bk-strip__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:.1rem}.bk-strip__name{font-size:var(--fs-sm);font-weight:800;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bk-strip__meta{font-size:var(--fs-xs);color:var(--muted)}.bk-strip__act{flex-shrink:0;font-size:var(--fs-xs);font-weight:800;color:var(--primary-deep)}.bk-wizard{margin-top:var(--space-18)}.bk-wizard__title{font-size:var(--fs-h2);font-weight:800;color:var(--text)}.bk-wizard__sub{margin-top:var(--space-6);font-size:var(--fs-sm);color:var(--muted);line-height:1.6}.bk-path{margin-top:var(--space-12);display:flex;align-items:center;gap:var(--space-12);padding:var(--space-14);background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-xl);box-shadow:var(--edge-paper);cursor:pointer}.bk-path--recommend{border-color:var(--primary-border);background:linear-gradient(135deg,var(--primary-light-2) 0%,var(--surface) 65%)}.bk-path--pressed{transform:translateY(.05rem);box-shadow:var(--edge-paper-press)}.bk-path__ico{font-size:1.3rem;line-height:1}.bk-path__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:var(--space-4)}.bk-path__title{display:flex;align-items:center;gap:var(--space-6);font-size:var(--fs-body);font-weight:800;color:var(--text)}.bk-path__tag{padding:.05rem var(--space-6);border-radius:var(--r-full);background:var(--primary);color:var(--on-primary);font-size:.5rem;font-weight:800}.bk-path__desc{font-size:var(--fs-xs);color:var(--muted);line-height:1.5}.bk-path__meta{flex-shrink:0;font-size:.5rem;font-weight:700;color:var(--primary-deep)}.bk-wb-steps{margin-top:var(--space-20);display:flex;align-items:center;justify-content:center;gap:var(--space-8);font-size:var(--fs-xs);font-weight:700;color:var(--muted)}.bk-wb-steps__line{color:var(--muted-2)}.bk-mask{position:fixed;inset:0;z-index:30;background:rgba(52,39,27,.42);display:flex;align-items:flex-end;justify-content:center}.bk-sheet{width:100%;max-width:var(--content-max);max-height:86vh;overflow-y:auto;padding:var(--space-8) var(--space-18) calc(var(--space-24) + env(safe-area-inset-bottom,0rem));background:var(--surface);border-radius:var(--r-2xl, 1.4rem) var(--r-2xl, 1.4rem) 0 0;box-shadow:0 -.4rem 1.4rem #50371e2e}.bk-sheet__grabber{width:2.1rem;height:.25rem;margin:var(--space-6) auto var(--space-10);border-radius:var(--r-full);background:var(--border-strong)}.bk-sheet__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-10)}.bk-sheet__title{font-size:var(--fs-h2);font-weight:800;color:var(--text)}.bk-sheet__close{font-size:var(--fs-sm);font-weight:700;color:var(--muted);cursor:pointer;padding:var(--space-4) var(--space-6)}.bk-textarea{min-height:6.5rem;padding:var(--space-10) var(--space-12);background:var(--surface);border:var(--bw) solid var(--border-strong);border-radius:var(--r-md)}.bk-textarea__inner{width:100%;min-height:5.5rem;font-size:var(--fs-body);line-height:1.7;color:var(--text)}.bk-parse-sum{margin-top:var(--space-12);font-size:var(--fs-xs);line-height:1.6;color:var(--muted)}.bk-paste{margin-top:var(--space-12);background:var(--surface);border:var(--bw) solid var(--border-strong);border-radius:var(--r-lg);overflow:hidden}.bk-rule{margin-bottom:var(--space-8)}.bk-rule__title{display:block;font-size:var(--fs-xs);color:var(--muted)}.bk-rule__body{margin-top:var(--space-6);padding:var(--space-8);border-radius:var(--radius-sm);background:var(--surface-alt)}.bk-rule__line{display:block;font-size:var(--fs-xs);line-height:1.6;color:var(--muted)}.bk-rule__fill{display:inline-block;margin-top:var(--space-8);padding:.2rem var(--space-10);border-radius:var(--radius-pill);border:var(--bw) solid var(--primary-border);color:var(--primary-deep);font-size:var(--fs-xs)}.bk-rule__error{margin-top:var(--space-6);font-size:var(--fs-xs);color:var(--danger, #dc2626)}.bk-paste__head{display:flex;align-items:center;justify-content:space-between;padding:var(--space-8) var(--space-12);background:var(--surface-2);border-bottom:var(--bw) solid var(--border);font-size:var(--fs-xs);font-weight:700;color:var(--muted)}.bk-paste__trial{color:var(--primary-deep);cursor:pointer}.bk-paste__area{width:100%;min-height:11rem;padding:var(--space-12);font-size:var(--fs-sm);line-height:1.8;color:var(--text);box-sizing:border-box}.bk-input-actions{margin-top:var(--space-10);display:flex;gap:var(--space-8)}.bk-input-action{padding:var(--space-8) var(--space-12);border-radius:var(--r-full);background:var(--surface);border:var(--bw) solid var(--border);font-size:var(--fs-xs);font-weight:700;color:var(--primary-deep);cursor:pointer}.bk-input-action--pressed{background:var(--primary-light-2)}.bk-parse{margin-top:var(--space-12);padding:var(--space-12);background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-lg)}.bk-parse__head{display:flex;align-items:baseline;justify-content:space-between;gap:var(--space-8)}.bk-parse__title{font-size:var(--fs-sm);font-weight:800;color:var(--text)}.bk-parse__warn{font-size:var(--fs-xs);font-weight:700;color:var(--coral-deep)}.bk-parse__foot{margin-top:var(--space-8);font-size:var(--fs-xs);line-height:1.6;color:var(--muted)}.bk-pcs{margin-top:var(--space-8);display:flex;flex-wrap:wrap;gap:var(--space-6)}.bk-pc{display:inline-flex;align-items:center;justify-content:center;min-width:1.5rem;padding:var(--space-4) var(--space-6);border-radius:var(--r-sm);background:var(--surface-2);border:var(--bw) solid var(--border);font-size:var(--fs-sm);font-weight:700;color:var(--text);line-height:1.3}.bk-pc--warn{border-color:var(--coral-border);background:var(--coral-light);color:var(--on-coral-light)}.bk-pc--more{color:var(--muted)}.bk-pc--tap{flex-direction:column;gap:.05rem;min-width:2.1rem;cursor:pointer}.bk-pc__char{font-size:var(--fs-body);font-weight:800}.bk-pc__py{font-size:.45rem;color:var(--muted);line-height:1.2}.bk-pc--warn .bk-pc__py{color:var(--coral-deep)}.bk-sum{display:flex;align-items:baseline;gap:var(--space-10);margin:var(--space-6) var(--space-2) var(--space-10)}.bk-sum__main{font-size:var(--fs-h2);font-weight:800;color:var(--text)}.bk-sum__warn{font-size:var(--fs-xs);font-weight:700;color:var(--coral-deep)}.bk-lessons{display:flex;flex-direction:column;gap:var(--space-10)}.bk-lesson{padding:var(--space-12);background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-lg)}.bk-lesson--unnamed{border-style:dashed;border-color:var(--border-strong);background:var(--surface-2)}.bk-lesson__head{display:flex;align-items:center;gap:var(--space-8)}.bk-lesson__idx{flex-shrink:0;width:1rem;height:1rem;border-radius:var(--r-full);background:var(--primary-light);color:var(--primary-deep);font-size:.5rem;font-weight:800;line-height:1rem;text-align:center}.bk-lesson__name{flex:1;min-width:0;font-size:var(--fs-sm);font-weight:800;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bk-lesson__count{flex-shrink:0;font-size:var(--fs-xs);color:var(--muted)}.bk-lesson__act{flex-shrink:0;padding:var(--space-2) var(--space-4);font-size:var(--fs-xs);font-weight:700;color:var(--primary-deep);cursor:pointer}.bk-lesson__act--danger{color:var(--coral-deep)}.bk-hero{display:flex;align-items:center;gap:var(--space-16);padding:var(--space-16);background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-xl);box-shadow:var(--edge-paper)}.bk-hero__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:var(--space-8)}.bk-hero__name{font-size:var(--fs-h2);font-weight:800;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bk-hero__meta{font-size:var(--fs-xs);color:var(--muted)}.bk-actions{margin-top:var(--space-12);display:flex;gap:var(--space-10)}.bk-actions .bk-btn{margin-top:0;flex:1}.bk-source{margin-top:var(--space-12);display:flex;align-items:center;font-size:var(--fs-xs);color:var(--muted)}.bk-toc{display:flex;flex-direction:column;background:var(--surface);border:var(--bw) solid var(--border);border-radius:var(--r-lg);overflow:hidden}.bk-lesson-row{display:flex;align-items:center;gap:var(--space-10);padding:var(--space-12) var(--space-14);border-bottom:var(--bw) solid var(--border)}.bk-lesson-row:last-child{border-bottom:0}.bk-lesson-row__idx{flex-shrink:0;font-size:var(--fs-xs);font-weight:800;color:var(--muted-2);font-variant-numeric:tabular-nums}.bk-lesson-row__name{flex:1;min-width:0;font-size:var(--fs-sm);font-weight:700;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bk-lesson-row__status{flex-shrink:0;padding:.05rem var(--space-6);border-radius:var(--r-full);background:var(--coral-light);color:var(--coral-deep);font-size:.5rem;font-weight:800}.bk-lesson-row__count{flex-shrink:0;min-width:2.6rem;text-align:right;font-size:var(--fs-xs);color:var(--muted);font-variant-numeric:tabular-nums}.bk-toc-empty{padding:var(--space-20);text-align:center;font-size:var(--fs-sm);color:var(--muted);background:var(--surface-2);border:var(--bw) dashed var(--border-strong);border-radius:var(--r-lg)}.bk-merge-list{display:flex;flex-direction:column;gap:var(--space-8)}.bk-merge-row{display:flex;align-items:center;justify-content:space-between;padding:var(--space-12) var(--space-14);background:var(--surface-2);border:var(--bw) solid var(--border);border-radius:var(--r-md);cursor:pointer}.bk-merge-row--pressed{background:var(--primary-light-2)}.bk-merge-row__name{font-size:var(--fs-sm);font-weight:700;color:var(--text)}.bk-merge-row__count{font-size:var(--fs-xs);color:var(--muted)}.bk-pinyin-edit{display:flex;flex-direction:column;align-items:center}.bk-pinyin-edit__char{width:3.6rem;height:3.6rem;line-height:3.6rem;text-align:center;font-size:2rem;font-weight:800;color:var(--text);background:var(--surface-2);border:var(--bw) solid var(--border);border-radius:var(--r-lg)}