.cf-box{--cf:180px;--cf-accent:var(--mm,var(--accent));--cf-accent-soft:var(--mm-soft,var(--accent-soft));position:relative;flex:none;width:var(--cf);height:var(--cf);border-radius:14px;border:2px solid var(--line-strong);background:var(--surface)}.cf-sm{border-radius:9px;border-width:1.5px}.cf-box.ok{border-color:var(--good)}.cf-box.bad{border-color:#d64545}.cf-grid{position:absolute;inset:0;pointer-events:none;border-radius:inherit;background:linear-gradient(to right,transparent calc(50% - .5px),color-mix(in srgb,var(--line-strong) 70%,transparent) calc(50% - .5px),color-mix(in srgb,var(--line-strong) 70%,transparent) calc(50% + .5px),transparent calc(50% + .5px)),linear-gradient(to bottom,transparent calc(50% - .5px),color-mix(in srgb,var(--line-strong) 70%,transparent) calc(50% - .5px),color-mix(in srgb,var(--line-strong) 70%,transparent) calc(50% + .5px),transparent calc(50% + .5px));opacity:.8}.cf-slot{position:absolute;z-index:2;display:block;margin:0;padding:0;overflow:visible;font:inherit;color:var(--ink);background:transparent;border:0;border-radius:10px}.cf-slot.frame{z-index:1}.cf-slot:before{content:"";position:absolute;inset:4px;border-radius:9px;border:2px dashed var(--line-strong);transition:border-color .15s,background-color .15s}.cf-slot:not(.frame):before{background:color-mix(in srgb,var(--surface) 82%,transparent)}.cf-sm .cf-slot:before{inset:2px;border-width:1px;border-radius:6px}.cf-slot.on:before{border-color:transparent;background:transparent}button.cf-slot{cursor:pointer}button.cf-slot:disabled{cursor:default}.cf-slot.act:before{border-style:solid;border-color:var(--cf-accent);background:var(--cf-accent-soft);animation:cf-pulse 1.4s ease-in-out infinite}.cf-slot.frame.act:before{background:color-mix(in srgb,var(--cf-accent-soft) 60%,transparent)}.cf-box.live button.cf-slot:not(.on):hover:before{border-color:var(--cf-accent)}.cf-box.live button.cf-slot.on:hover:before{border:2px dashed #d64545;background:color-mix(in srgb,#d64545 8%,transparent)}button.cf-slot:focus-visible{outline:none}button.cf-slot:focus-visible:before{outline:2px solid var(--cf-accent);outline-offset:1px}@keyframes cf-pulse{0%,to{box-shadow:0 0 0 0 color-mix(in srgb,var(--cf-accent) 0%,transparent)}50%{box-shadow:0 0 0 4px color-mix(in srgb,var(--cf-accent) 22%,transparent)}}.cf-pos{position:absolute;transform:translate(-50%,-50%);white-space:nowrap;pointer-events:none;font-size:.72rem;font-weight:700;letter-spacing:.01em;color:var(--ink-faint)}.cf-slot.act .cf-pos{color:var(--cf-accent)}.cf-glyph{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;fill:currentColor;animation:cf-drop .18s ease-out}@keyframes cf-drop{0%{opacity:0;translate:0 -6px}to{opacity:1;translate:0 0}}.cf-box.bad .cf-glyph{color:#b42f2f}.cf-box.bad .cf-slot.right .cf-glyph{color:var(--good)}.cf-slot.wrong:before{border:2px dashed color-mix(in srgb,#d64545 55%,transparent);background:color-mix(in srgb,#d64545 7%,transparent)}.cf-k0 .cf-glyph{color:#16a34a}.cf-k1 .cf-glyph{color:#2563eb}.cf-k2 .cf-glyph{color:#ea580c}.cf-k3 .cf-glyph{color:#7c3aed}@media (prefers-color-scheme:dark){.cf-k0 .cf-glyph{color:#4ade80}.cf-k1 .cf-glyph{color:#60a5fa}.cf-k2 .cf-glyph{color:#fb923c}.cf-k3 .cf-glyph{color:#a78bfa}.cf-box.bad .cf-glyph{color:#f28b82}}@media (prefers-reduced-motion:reduce){.cf-glyph,.cf-slot.act:before{animation:none}}.cf-part{position:relative;display:inline-block;width:1.2em;height:1.2em;vertical-align:middle}.cf-part .cf-glyph{animation:none}.cf-stage{justify-content:center;gap:14px;flex-wrap:wrap;margin-top:4px}.cf-eq,.cf-stage{display:flex;align-items:center}.cf-eq{gap:10px;animation:cf-drop .25s ease-out}.cf-eq-sign{font-size:1.6rem;font-weight:800;color:var(--ink-faint)}.cf-eq-char{font-family:"KaiTi","STKaiti","Kaiti SC","DengXian","Noto Sans SC",var(--font-sans);font-size:calc(var(--cf, 180px) * .62);line-height:1;font-weight:600;color:var(--ink)}.cf-cap{margin:2px 0 0;font-size:var(--cs-fs-sm,.85rem);color:var(--ink-soft);text-align:center}.cf-cap b{color:var(--ink)}.cf-cap span{color:var(--ink-faint)}.cf-answer{display:inline-flex;align-items:center;gap:8px;vertical-align:middle;margin-top:4px}.cf-answer .cf-eq-sign{font-size:1.1rem}.cf-answer .cf-eq-char{font-size:2.6rem;color:var(--good)}.cs-compo-layout{display:flex;align-items:center;gap:12px;margin-bottom:10px}.cs-compo-layout .cf-box{border-radius:10px}.cs-compo-layout p{margin:0;font-size:var(--cs-fs-sm,.85rem);color:var(--ink-soft);line-height:1.45}.cs-compo-layout p b{color:var(--ink)}