.truncated-cube-caption{background:var(--surface-soft);border-radius:var(--radius-small);min-height:98px;padding:14px 17px}.truncated-cube-caption strong{font-size:15px}.truncated-cube-caption p{color:var(--muted);margin:7px 0 0;font-size:13px;line-height:1.85}.truncated-cube-camera{justify-content:space-between;align-items:center;gap:12px;padding-top:12px;display:flex}.truncated-cube-camera span{color:var(--muted);font-size:11px}.truncated-cube-camera .button{min-height:38px;padding:8px 11px}.truncated-cube-canvas{isolation:isolate;touch-action:none;width:100%;height:430px;position:relative}.truncated-cube-canvas canvas{touch-action:none}.truncated-cube-point-label{border:1px solid var(--line-strong);background:var(--surface);width:24px;height:24px;color:var(--ink);border-radius:50%;place-items:center;font-size:12px;font-weight:700;display:grid;box-shadow:0 2px 8px #183e3724}.truncated-cube-point-label--corner{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.truncated-cube-key{color:var(--muted);flex-wrap:wrap;justify-content:center;gap:10px 22px;font-size:12px;display:flex}.truncated-cube-key span{align-items:center;gap:7px;display:inline-flex}.truncated-cube-key i{border:1px solid var(--line-strong);border-radius:3px;width:15px;height:15px}.truncated-cube-key--square{background:var(--diagram-first)}.truncated-cube-key--pentagon{background:var(--diagram-third)}.truncated-cube-key--triangle{background:var(--highlight)}.truncated-cube-choice-panel{border-top:1px solid var(--line);margin-top:22px;padding-top:20px}.truncated-cube-choice-panel>div:first-child{justify-content:space-between;align-items:baseline;gap:18px;margin-bottom:13px;display:flex}.truncated-cube-choice-panel h3{margin:0;font-size:14px}.truncated-cube-choice-panel>div:first-child p{max-width:610px;color:var(--muted);margin:0;font-size:11px;line-height:1.75}.truncated-cube-option-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;display:grid}.truncated-cube-option{border:1px solid var(--line);border-radius:var(--radius-small);background:var(--surface);min-width:0;color:var(--ink);text-align:left;padding:8px;position:relative}button.truncated-cube-option:hover{background:var(--surface-soft)}.truncated-cube-option[role=radio]{cursor:pointer}.truncated-cube-option[role=radio]:focus-visible,.truncated-cube-option[aria-checked=true],.truncated-cube-option.is-selected{outline:2px solid var(--ink);outline-offset:2px}.truncated-cube-option.is-correct{border-color:var(--diagram-first)}.truncated-cube-option.is-incorrect{border-color:var(--accent)}.truncated-cube-option__letter{z-index:1;background:var(--surface);border:1px solid var(--line);border-radius:50%;place-items:center;width:23px;height:23px;font-size:12px;font-weight:700;display:grid;position:absolute;top:7px;left:9px}.truncated-cube-option svg{width:100%;height:auto;display:block}.truncated-cube-option__verdict{min-height:42px;color:var(--muted);padding:2px 2px 0;font-size:10px;line-height:1.5;display:block}.truncated-cube-option.is-correct .truncated-cube-option__verdict{color:var(--diagram-first)}.truncated-cube-option.is-incorrect .truncated-cube-option__verdict{color:var(--accent)}.truncated-cube-net__face{stroke:var(--ink);stroke-width:1.5px;vector-effect:non-scaling-stroke}.truncated-cube-net__face--square{fill:var(--surface-soft)}.truncated-cube-net__face--pentagon{fill:#dce7ee}.truncated-cube-net__face--triangle{fill:var(--highlight)}.truncated-cube-net__face.is-mismatch{stroke:var(--accent);stroke-width:3px}.truncated-cube-net__ghost-corner polygon{fill:var(--accent-soft);stroke:var(--line-strong);stroke-width:1.2px;stroke-dasharray:4 3;vector-effect:non-scaling-stroke}.truncated-cube-net__ghost-corner text{fill:var(--ink);paint-order:stroke;stroke:var(--surface);stroke-width:4px;font-size:14px;font-weight:700}.truncated-cube-net__ghost-corner.is-mismatch polygon{stroke:var(--accent);stroke-width:2.4px}.truncated-cube-net__ghost-corner.is-mismatch text{fill:var(--accent)}.truncated-cube-verdict{border-radius:var(--radius-small);background:var(--surface-soft);min-height:44px;color:var(--muted);margin:12px 0 0;padding:11px 13px;font-size:12px;line-height:1.75}.truncated-cube-verdict strong{color:var(--ink)}.truncated-cube-question-figure{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);max-width:920px;margin:18px 0 26px;padding:18px}.truncated-cube-question-figure__solid{grid-template-columns:minmax(180px,270px) minmax(140px,1fr);align-items:center;gap:22px;max-width:590px;margin:0 auto 18px;display:grid}.truncated-cube-question-figure__solid p{color:var(--muted);margin:0;font-size:13px;line-height:1.8}.truncated-cube-question-figure__solid>svg{width:100%;height:auto;display:block}.truncated-cube-solid__face{fill:var(--surface-soft);stroke:var(--ink);stroke-width:1.8px;stroke-linejoin:round;vector-effect:non-scaling-stroke}.truncated-cube-solid__face--pentagon{fill:#dce7ee}.truncated-cube-solid__face--cut{fill:var(--highlight);stroke-width:2.5px}.truncated-cube-question-figure .truncated-cube-option-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.truncated-cube-question-figure figcaption{color:var(--muted);margin-top:12px;font-size:11px;line-height:1.75}@media (width<=760px){.truncated-cube-canvas{height:350px}.truncated-cube-option-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.truncated-cube-choice-panel>div:first-child{display:block}.truncated-cube-choice-panel>div:first-child p{margin-top:7px}}@media (width<=480px){.truncated-cube-caption{min-height:128px}.truncated-cube-canvas{height:300px}.truncated-cube-camera{align-items:flex-start}.truncated-cube-camera span{max-width:155px;line-height:1.6}.truncated-cube-key{justify-content:flex-start;gap:8px 14px}.truncated-cube-option{padding:5px}.truncated-cube-question-figure{padding:12px}.truncated-cube-question-figure__solid{grid-template-columns:1fr;gap:5px}.truncated-cube-question-figure__solid>svg{width:min(100%,240px);margin-inline:auto}.truncated-cube-question-figure__solid p{text-align:center;font-size:11px}}