.stroke-order-practice-page{--stroke-order-practice-frame-width: 980px;--color-bg: #f5f0e8;--color-surface: #faf7f0;--color-surface-2: #f5f0e8;--color-surface-3: #ece5d8;--color-text: #2c2420;--color-text-muted: #6f6357;--color-border: rgba(100, 80, 60, .25);--sop-ink: #2c2420;--sop-seal: #b23b2e;--sop-grid: rgba(178, 59, 46, .32);--sop-grid-soft: rgba(178, 59, 46, .16);--sop-paper: #fbf8f2;--sop-outline: #d9cdba}.stroke-order-practice-page .tool-frame{max-width:var(--stroke-order-practice-frame-width)}.stroke-order-practice-page .tool-header-block{max-width:640px}.stroke-order-practice-page .page-title{max-width:16ch;font-size:clamp(2rem,4vw,2.9rem);line-height:.98}.stroke-order-practice-page .page-subtitle{max-width:46ch}.sop{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:22px;align-items:start}.sop__stage{min-width:0;display:flex;flex-direction:column;align-items:center;gap:16px;padding:22px;border:1px solid var(--color-border);border-radius:24px;background:var(--color-surface)}.sop__writer-wrap{position:relative;width:100%;max-width:min(560px,48vh);aspect-ratio:1 / 1;border-radius:16px;background:var(--sop-paper);box-shadow:0 1px #fff9 inset,0 8px 24px #503c281a}.sop__grid{position:absolute;inset:0;border:1.5px solid var(--sop-grid);border-radius:16px;background-image:linear-gradient(to right,transparent calc(50% - .75px),var(--sop-grid) calc(50% - .75px),var(--sop-grid) calc(50% + .75px),transparent calc(50% + .75px)),linear-gradient(to bottom,transparent calc(50% - .75px),var(--sop-grid) calc(50% - .75px),var(--sop-grid) calc(50% + .75px),transparent calc(50% + .75px)),linear-gradient(to bottom right,transparent calc(50% - .6px),var(--sop-grid-soft) calc(50% - .6px),var(--sop-grid-soft) calc(50% + .6px),transparent calc(50% + .6px)),linear-gradient(to bottom left,transparent calc(50% - .6px),var(--sop-grid-soft) calc(50% - .6px),var(--sop-grid-soft) calc(50% + .6px),transparent calc(50% + .6px))}.sop__writer-wrap[data-guide=tian] .sop__grid{background-image:linear-gradient(to right,transparent calc(50% - .75px),var(--sop-grid) calc(50% - .75px),var(--sop-grid) calc(50% + .75px),transparent calc(50% + .75px)),linear-gradient(to bottom,transparent calc(50% - .75px),var(--sop-grid) calc(50% - .75px),var(--sop-grid) calc(50% + .75px),transparent calc(50% + .75px))}.sop__guide-toggle{position:absolute;top:8px;left:8px;z-index:3;width:32px;height:32px;font-size:1rem;line-height:1;color:var(--color-text-muted);background:var(--sop-paper);border:1px solid var(--color-border);border-radius:8px;cursor:pointer}.sop__guide-toggle:hover{color:var(--color-text);border-color:var(--sop-seal)}.sop__writer{position:absolute;inset:0;display:grid;place-items:center}.sop__writer-wrap.is-loading:after{content:"";position:absolute;inset:0;margin:auto;width:32px;height:32px;border:3px solid var(--sop-grid-soft);border-top-color:var(--sop-seal);border-radius:50%;animation:sop-spin .7s linear infinite}@keyframes sop-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.sop__writer-wrap.is-loading:after{animation:none;border-top-color:var(--sop-grid-soft)}}.sop__writer svg{display:block}.sop__sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.sop__badge{position:absolute;top:10px;right:10px;padding:3px 10px;font-size:.72rem;font-weight:700;color:#256b41;background:#4caf6e24;border:1px solid rgba(76,175,110,.4);border-radius:999px}.sop__stamp{position:absolute;inset:0;margin:auto;width:96px;height:96px;display:grid;place-items:center;font-size:1.4rem;font-weight:800;color:#fff;background:var(--sop-seal);border:3px solid #fff;border-radius:50%;box-shadow:0 4px 16px #b23b2e66;opacity:0;pointer-events:none;transform:scale(.4) rotate(-18deg)}.sop__stamp.is-stamping{animation:sop-stamp 1.3s ease forwards}@keyframes sop-stamp{0%{opacity:0;transform:scale(1.6) rotate(-18deg)}18%{opacity:1;transform:scale(.92) rotate(-12deg)}28%{transform:scale(1) rotate(-12deg)}80%{opacity:1;transform:scale(1) rotate(-12deg)}to{opacity:0;transform:scale(1) rotate(-12deg)}}@media(prefers-reduced-motion:reduce){.sop__stamp.is-stamping{animation:sop-stamp-fade 1s ease forwards}@keyframes sop-stamp-fade{0%,80%{opacity:1;transform:none}to{opacity:0}}}.sop__meta{width:min(74vw,380px);display:flex;flex-direction:column;gap:10px}.sop__charinfo{display:flex;align-items:center;gap:14px}.sop__bigchar{font-size:1.5rem;font-weight:700;line-height:1;color:var(--sop-seal)}.sop__charstats{display:flex;flex-direction:column;gap:2px;font-size:var(--text-sm);color:var(--color-text-muted)}.sop__charstats b{color:var(--color-text);font-size:1.05rem}.sop__zhuyin{font-size:1.6rem;font-weight:700;color:var(--sop-seal);letter-spacing:.04em}.sop__zhuyin:empty{display:none}.sop__readings{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}.sop__pinyin{font-size:1rem;font-weight:600;color:var(--color-text-muted);letter-spacing:.02em}.sop__pinyin:empty{display:none}.sop__gloss{font-size:var(--text-sm);font-style:italic;color:var(--color-text-muted)}.sop__gloss:empty{display:none}.sop__cnsorder{font-size:var(--text-xs, .78rem);color:var(--color-text-muted)}.sop__speak{margin-inline-start:auto;display:grid;place-items:center;width:44px;height:44px;flex:none;color:var(--sop-seal);background:var(--sop-paper);border:1px solid var(--color-border);border-radius:50%;cursor:pointer;transition:transform .1s,border-color .12s,background .12s}.sop__speak:hover{transform:translateY(-1px);border-color:var(--sop-seal);background:#b23b2e14}.sop__speak svg{width:22px;height:22px}.sop__speak.is-speaking{background:var(--sop-seal);color:#fff;border-color:var(--sop-seal)}.sop__feedback{color:var(--sop-seal);font-weight:600;text-decoration:underline}.sop__picker-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.sop__print-btn{flex:none;min-height:36px}.sop__print-sheet{display:none}@media print{.page-shell{display:none!important}body>.sop__print-sheet{display:block!important;color:#000;font-family:inherit}.ps-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:2px solid #000;padding-bottom:6px;margin-bottom:4px}.ps-title{font-size:18pt;font-weight:700}.ps-meta{font-size:11pt}.ps-note{margin:2px 0 12px;font-size:9pt;color:#555}.ps-row{display:flex;align-items:center;gap:8px;break-inside:avoid;margin-bottom:6px}.ps-label{width:2.4cm;flex:none;text-align:center}.ps-char{display:block;font-size:20pt;font-weight:600}.ps-zhuyin{display:block;font-size:10pt}.ps-cells{display:flex;gap:0}.ps-cell{position:relative;width:1.8cm;height:1.8cm;border:1px solid #000;margin-left:-1px}.ps-cell:before{content:"";position:absolute;left:0;right:0;top:50%;border-top:1px dashed #bbb}.ps-cell:after{content:"";position:absolute;top:0;bottom:0;left:50%;border-left:1px dashed #bbb}.ps-trace{position:absolute;inset:0;display:grid;place-items:center;font-size:30pt;color:#ccc}@page{size:A4 portrait;margin:1.2cm}}.sop__order{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none;counter-reset:stroke}.sop__order li{display:inline-flex;align-items:center;gap:4px;padding:3px 9px 3px 7px;font-size:.82rem;font-weight:600;color:var(--sop-ink);background:var(--color-surface-3);border:1px solid var(--color-border);border-radius:8px}.sop__order li:before{counter-increment:stroke;content:counter(stroke);display:grid;place-items:center;width:16px;height:16px;font-size:.64rem;color:#fff;background:var(--sop-seal);border-radius:50%}.sop__order--empty{color:var(--color-text-muted);font-size:var(--text-sm)}.sop__controls{flex-wrap:wrap;justify-content:center;gap:10px;width:min(74vw,380px)}.sop__controls .button{flex:1 1 auto;display:inline-flex;align-items:center;justify-content:center;gap:6px}.sop__act-ico{font-size:1.5em;line-height:1}.stroke-order-practice-page .button-secondary{color:var(--color-text);background:var(--sop-paper);border:1px solid var(--color-border)}.stroke-order-practice-page .button-secondary:hover{border-color:var(--sop-seal);color:var(--sop-seal)}.stroke-order-practice-page .button:focus-visible,.stroke-order-practice-page .button-secondary:focus-visible,.stroke-order-practice-page .sop__tab:focus-visible,.stroke-order-practice-page .sop__charbtn:focus-visible{outline:2px solid var(--sop-seal);outline-offset:2px}.sop__nav{display:flex;align-items:center;justify-content:center;gap:14px}.sop__nav .button-sm{min-width:44px;min-height:44px;font-size:1rem}.sop__progress{font-size:var(--text-sm);color:var(--color-text-muted);font-variant-numeric:tabular-nums;min-width:7ch;text-align:center}.sop__status{margin:0;min-height:1.4em;font-size:var(--text-sm);font-weight:600;text-align:center}.sop__status[data-tone=success]{color:#256b41}.sop__status[data-tone=error]{color:var(--sop-seal)}.sop__status[data-tone=info]{color:var(--color-text-muted)}.sop__picker{min-width:0;display:flex;flex-direction:column;gap:14px;padding:20px;border:1px solid var(--color-border);border-radius:24px;background:var(--color-surface-2)}.sop__search-wrap{position:relative}.sop__search{display:flex;gap:8px}.sop__suggest{position:absolute;z-index:20;left:0;right:0;top:calc(100% + 4px);margin:0;padding:4px;list-style:none;max-height:240px;overflow-y:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:4px;background:var(--sop-paper);border:1px solid var(--color-border);border-radius:12px;box-shadow:0 8px 24px #2c24202e}.sop__suggest[hidden]{display:none}.sop__suggest-item{display:flex;flex-direction:column;align-items:center;gap:1px;padding:6px 4px;border-radius:8px;cursor:pointer}.sop__suggest-item:hover,.sop__suggest-item[aria-selected=true]{background:var(--sop-grid-soft, rgba(178, 59, 46, .12))}.sop__suggest-char{font-size:1.4rem;line-height:1;color:var(--color-text)}.sop__suggest-zy{font-size:.7rem;color:var(--color-text-muted)}.sop__suggest-py{font-size:.62rem;color:var(--color-text-muted);opacity:.85}.sop__suggest-py:empty{display:none}.sop__recent{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.sop__recent[hidden]{display:none}.sop__recent-label{font-size:var(--text-xs, .78rem);font-weight:600;color:var(--color-text-muted);flex:none}.sop__recent-list{display:flex;gap:6px;flex-wrap:wrap}.sop__recent-btn{min-width:38px;min-height:38px;font-size:1.25rem;line-height:1;color:var(--color-text);background:var(--sop-paper);border:1px solid var(--color-border);border-radius:10px;cursor:pointer}.sop__recent-btn:hover{border-color:var(--sop-seal)}.sop__modes{display:flex;gap:4px;padding:3px;background:var(--sop-grid-soft, rgba(178, 59, 46, .08));border-radius:12px}.sop__mode{flex:1 1 0;min-height:38px;font-size:var(--text-sm);font-weight:600;color:var(--color-text-muted);background:transparent;border:0;border-radius:10px;cursor:pointer;transition:color .12s,background .12s}.sop__mode:hover{color:var(--color-text)}.sop__mode[aria-selected=true]{color:var(--color-text);background:var(--sop-paper);box-shadow:0 1px 3px #2c24201f}.sop__custom{display:flex;flex-direction:column;gap:6px}.sop__custom[hidden]{display:none}.sop__custom-label{font-size:var(--text-sm);font-weight:600;color:var(--color-text)}.sop__custom-input{width:100%;min-height:56px;padding:8px 12px;font-size:1.25rem;line-height:1.5;color:var(--color-text);background:var(--sop-paper);border:1px solid var(--color-border);border-radius:12px;resize:vertical}.sop__custom-input:focus-visible{outline:2px solid var(--sop-seal);outline-offset:1px}.sop__custom-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.sop__custom-msg{margin:0;font-size:var(--text-xs, .78rem);color:var(--color-text-muted)}.sop__custom-msg[data-tone=success]{color:#256b41}.sop__custom-msg[data-tone=error]{color:var(--sop-seal)}.sop__tabs[data-mode=radical] .sop__tab{display:flex;flex-direction:column;align-items:center;gap:1px;line-height:1.05}.sop__tab-rad{font-size:1.05rem}.sop__tab-count{font-size:.62rem;opacity:.7;font-weight:500}.sop__tab[aria-selected=true] .sop__tab-count{opacity:.85}.sop__search-input{flex:1 1 auto;min-width:0;min-height:40px;padding:6px 12px;font-size:1rem;color:var(--color-text);background:var(--sop-paper);border:1px solid var(--color-border);border-radius:12px}.sop__search-input:focus-visible{outline:2px solid var(--sop-seal);outline-offset:1px}.sop__search-btn{flex:none;min-height:40px}.sop__search-msg{margin:0;font-size:var(--text-sm);font-weight:600}.sop__search-msg[data-tone=success]{color:#256b41}.sop__search-msg[data-tone=error]{color:var(--sop-seal)}.sop__tabs{display:flex;flex-wrap:wrap;gap:6px;max-height:132px;overflow-y:auto;scrollbar-width:thin}.sop__tabs[data-mode=radical]{display:grid;grid-template-columns:repeat(auto-fill,minmax(40px,1fr));max-height:160px}.sop__tabs[data-mode=radical] .sop__tab{padding:6px 0;text-align:center}.sop__tabs[data-mode=theme]{max-height:none;overflow:visible}.sop__tab{padding:6px 12px;font-size:var(--text-sm);font-weight:600;color:var(--color-text-muted);background:transparent;border:1px solid var(--color-border);border-radius:999px;cursor:pointer;transition:color .12s,background .12s,border-color .12s}.sop__tab:hover{color:var(--color-text)}.sop__tab[aria-selected=true]{color:#fff;background:var(--sop-seal);border-color:var(--sop-seal)}.sop__chargrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(46px,1fr));gap:8px}.sop__charbtn{position:relative;aspect-ratio:1 / 1;display:grid;place-items:center;font-size:1.35rem;font-weight:600;color:var(--color-text);background:var(--sop-paper);border:1px solid var(--color-border);border-radius:12px;cursor:pointer;transition:transform .1s,border-color .12s,box-shadow .12s}.sop__charbtn:hover{transform:translateY(-1px);border-color:var(--sop-seal)}.sop__charbtn[aria-current=true]{color:#fff;background:var(--sop-seal);border-color:var(--sop-seal);box-shadow:0 4px 12px #b23b2e47}.sop__charbtn[data-done=true]:after{content:"\2713";position:absolute;top:2px;right:4px;font-size:.7rem;font-weight:800;line-height:1;color:#256b41}.sop__charbtn[data-done=true][aria-current=true]:after{color:#fff}.sop__progress-pair{margin:0;display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 10px;min-width:0}.sop__lesson-progress{font-size:var(--text-sm);font-weight:600;color:#256b41}.sop__total-progress{font-size:var(--text-xs, .78rem);font-weight:600;color:var(--color-text-muted)}.sop__lesson-progress:not(:empty)+.sop__total-progress{border-inline-start:1px solid var(--color-border);padding-inline-start:10px}.sop__lesson-progress:empty,.sop__total-progress:empty{display:none}.sop__provenance{margin:0;font-size:.78rem;line-height:1.5;color:var(--color-text-muted)}@media(max-width:760px){.sop{display:flex;flex-direction:column;align-items:center;gap:14px}.sop__stage,.sop__picker{display:contents}.sop__writer-wrap{order:1;width:min(78vw,300px)}.sop__meta{order:2}.sop__status{order:3}.sop__controls{order:4}.sop__nav{order:5}.sop__search-wrap{order:6}.sop__search-msg{order:7}.sop__recent{order:8}.sop__modes{order:9}.sop__custom{order:10}.sop__tabs{order:11}.sop__picker-bar{order:12}.sop__chargrid{order:13}.sop__provenance{order:14}.sop__status,.sop__controls,.sop__search-wrap,.sop__search-msg,.sop__recent,.sop__modes,.sop__custom,.sop__tabs,.sop__picker-bar,.sop__chargrid,.sop__meta,.sop__provenance{width:min(88vw,360px)}.sop__tab{min-height:40px;display:inline-flex;align-items:center}.sop__mode{min-height:44px}.stroke-order-practice-page .page-title{max-width:none;font-size:clamp(2rem,9vw,2.7rem)}}