body[data-extra-view="strokes"] .toolbar,body[data-extra-view="strokes"] .top>.progress{display:none}
body.stroke-dialog-open{overflow:hidden}
.stroke-intro{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:26px;background:var(--blue-soft);border-radius:22px}
.stroke-intro h2{margin:14px 0 8px;font-size:clamp(1.4rem,3vw,2rem);letter-spacing:-.025em}
.stroke-intro p{max-width:680px;margin:0;line-height:1.65;color:var(--muted)}
.stroke-total{display:grid;text-align:center;flex-shrink:0;gap:4px}.stroke-total strong{font-size:3.5rem;line-height:1;color:var(--blue)}.stroke-total span{font-size:.8125rem;color:var(--blue);line-height:1.5}
.stroke-legend{display:flex;align-items:center;flex-wrap:wrap;gap:12px 20px;font-size:.8125rem;color:var(--muted);margin:16px 0 24px}
.stroke-legend>span{display:inline-flex;align-items:center;gap:7px}.stroke-start-key{width:12px;height:12px;background:var(--brand);border-radius:50%;display:inline-block;flex-shrink:0}
.stroke-legend svg{width:20px;height:20px;fill:none;stroke:var(--blue);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.stroke-tools{display:grid;gap:16px;margin:24px 0 14px}.stroke-tools>label{display:grid;gap:8px;font-size:.875rem;font-weight:700;max-width:480px}
.stroke-tools input{width:100%;min-height:46px;border:1px solid var(--control);background:var(--card);border-radius:12px;padding:10px 14px;font:inherit;font-weight:400;color:var(--ink)}
.stroke-tools input:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.stroke-category-filters{display:flex;gap:8px;flex-wrap:wrap}.stroke-category-filters button{min-height:44px;padding:10px 13px;font-size:.8125rem;display:inline-flex;align-items:center;gap:8px}
.stroke-category-filters button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:white}.stroke-category-filters button span{font-size:.75rem;opacity:.75}
.stroke-category{margin-top:34px}.stroke-category-heading h2{font-size:1.3rem;margin:0 0 7px;display:flex;align-items:center;gap:10px}.stroke-category-heading h2 span{display:inline-grid;place-items:center;min-width:25px;height:25px;padding:0 6px;border-radius:50%;background:var(--blue-soft);color:var(--blue);font-size:.8125rem}.stroke-category-heading p{margin:0 0 20px;color:var(--muted);font-size:.9375rem}
.stroke-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.stroke-card{min-width:0;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px;display:flex;flex-direction:column;align-items:stretch}
.stroke-card-top h3{font-size:1.45rem;margin:0 0 3px;line-height:1.35;overflow-wrap:anywhere}.stroke-pinyin{font-size:.9375rem;font-weight:600;color:var(--accent)}.stroke-label{font-size:.8125rem;color:var(--muted);margin:9px 0 0;min-height:2.8em}
.stroke-svg{display:block;width:100%;max-height:156px;color:var(--ink);margin:5px auto 12px;overflow:visible}
.stroke-grid{fill:none;stroke:var(--line);stroke-width:1;stroke-dasharray:4 5}
.stroke-static,.stroke-outline,.stroke-active{fill:none;stroke:var(--ink);stroke-width:11;stroke-linecap:round;stroke-linejoin:round}.stroke-outline{stroke:var(--line)}.stroke-start{fill:var(--brand);stroke:var(--card);stroke-width:3}.stroke-pen{fill:var(--brand);stroke:white;stroke-width:2}
.stroke-example{font-size:.8125rem;color:var(--muted);margin:10px 0 16px}.stroke-example [lang="zh-CN"]{font-size:1.05rem;color:var(--ink);margin-left:4px}
.stroke-card>button{margin-top:auto;min-height:44px;font-size:.875rem;width:100%}
.stroke-sources{margin-top:38px}.stroke-sources summary{font-weight:700}.stroke-sources p,.stroke-sources li{font-size:.875rem;line-height:1.65}.stroke-sources li{margin:10px 0}.stroke-sources a{color:var(--blue);overflow-wrap:anywhere}
.stroke-guide-modal{width:min(820px,calc(100vw - 24px));padding:26px}.stroke-dialog-top{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:22px}.stroke-dialog-top>div{min-width:0}.stroke-dialog-top h2{font-size:1.65rem;margin:12px 0 5px;display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}.stroke-dialog-top p{margin:0;color:var(--muted);font-size:.9375rem}.stroke-dialog-top>button{flex-shrink:0;min-height:44px}
.stroke-detail-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:26px}.stroke-detail-grid>div{min-width:0}
.stroke-stage{position:relative;max-width:320px;width:100%;aspect-ratio:1;margin:0 auto;background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden}.stroke-stage .stroke-svg{width:100%;height:100%;max-height:none;margin:0}.stroke-stage canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:crosshair}.stroke-stage.practising .stroke-active{stroke:var(--control);opacity:.35}.stroke-stage.practising .stroke-pen{display:none}
.stroke-animation-controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:16px}.stroke-animation-controls button{min-height:44px;font-size:.8125rem;padding:10px 12px}.stroke-animation-controls label{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--muted)}.stroke-animation-controls select{font:inherit;color:var(--ink);background:var(--card);border:1px solid var(--control);border-radius:9px;min-height:40px;padding:7px}.stroke-detail-grid .button-row{justify-content:flex-start;gap:10px}.stroke-detail-grid .button-row button{font-size:.8125rem;min-height:44px}
.stroke-explanation h3{font-size:1.15rem;margin:0 0 10px}.stroke-continuous{font-size:.875rem;color:var(--blue);margin:0 0 14px}.stroke-step-list{padding-left:28px;margin:0;line-height:1.65;font-size:.9375rem}.stroke-step-list li{padding:7px 9px;margin:4px 0;border-radius:8px}.stroke-step-list li.current{background:var(--blue-soft);color:var(--blue);font-weight:600}.stroke-tip{border-left:3px solid var(--brand);background:var(--accent-soft);border-radius:0 10px 10px 0;padding:14px;margin-top:18px;font-size:.875rem}.stroke-tip p{margin:6px 0 0;line-height:1.6}.stroke-explanation>button{min-height:44px;font-size:.875rem}.stroke-variants summary{font-weight:700}.stroke-variants article{margin-top:16px}.stroke-variants h4{margin:0 0 6px;font-size:.9375rem}.stroke-variants p{font-size:.875rem;line-height:1.6;margin:0;color:var(--muted)}
@media(max-width:1100px){.stroke-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.stroke-intro{padding:20px;align-items:flex-start}.stroke-total strong{font-size:2.5rem}.stroke-total span{font-size:.75rem}.stroke-card-grid{gap:12px}.stroke-card{padding:15px}.stroke-card-top h3{font-size:1.25rem}.stroke-pinyin{font-size:.8125rem}.stroke-card .stroke-svg{max-height:130px}.stroke-detail-grid{grid-template-columns:minmax(0,1fr);gap:24px}.stroke-guide-modal{padding:20px}.stroke-dialog-top h2{font-size:1.4rem}.stroke-stage{max-width:290px}.stroke-animation-controls{justify-content:center}.stroke-category-filters button{font-size:.75rem;padding:10px}.stroke-intro p{font-size:.875rem}}
@media(max-width:380px){.stroke-card-grid{grid-template-columns:minmax(0,1fr)}.stroke-intro{display:block}.stroke-total{display:none}.stroke-card .stroke-svg{max-height:160px}}