.paper-box-net,.paper-box{--role-base:var(--highlight);--role-wall:var(--accent-soft);--role-corner:var(--line)}.paper-box{--scene-canvas-height:450px;--step-caption-min-height:94px;--role-ink:var(--ink);--role-paper:var(--surface-soft);--scene-label-inset:45px}.paper-box-label{white-space:nowrap;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:4px;padding:2px 6px;font-size:12px;font-weight:600;line-height:1.6;display:block}.paper-box-label--base{background:var(--role-base)}.paper-box-key{color:var(--muted);flex-wrap:wrap;justify-content:center;gap:10px 22px;font-size:12px;display:flex}.paper-box-key span{align-items:center;gap:6px;display:inline-flex}.paper-box-key i{border:1px solid var(--line-strong);border-radius:3px;width:14px;height:14px}.paper-box-key--base{background:var(--role-base)}.paper-box-key--wall{background:var(--role-wall)}.paper-box-key--corner{background:var(--role-corner)}.paper-box-equations{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:18px;display:grid}.paper-box-equations p{border:1px solid var(--line);border-radius:var(--radius-small);margin:0;padding:14px 17px}.paper-box-equations span{color:var(--muted);margin-bottom:6px;font-size:12px;display:block}.paper-box-equations strong{font-size:16px;display:block}.paper-box-equations .paper-box-result{background:var(--surface-soft);grid-column:1/-1}.paper-box-result strong{font-size:23px}@media (width<=700px){.paper-box{--scene-canvas-height:340px;--step-caption-min-height:116px;--scene-label-inset:37px}.paper-box-label{padding:2px 4px;font-size:10px}.paper-box-equations{grid-template-columns:1fr}}