.sg-head-block{border-bottom:1px solid var(--color-line)}.sg-measure{border-bottom:1px solid var(--color-line);grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);align-items:center;gap:clamp(28px,5vw,72px);padding-block:clamp(40px,6vw,80px);display:grid}.sg-measure h2{letter-spacing:-.03em;margin:12px 0 10px;font-size:clamp(1.7rem,3.2vw,2.5rem);font-weight:800}.sg-need{color:var(--color-ink-2);margin:0 0 22px}.sg-howto{counter-reset:step;border-top:1px solid var(--color-line);gap:0;margin:0;padding:0;list-style:none;display:grid}.sg-howto li{counter-increment:step;border-bottom:1px solid var(--color-line);color:var(--color-ink-2);grid-template-columns:40px 1fr;gap:14px;padding-block:14px;display:grid}.sg-howto li:before{content:counter(step, decimal-leading-zero);color:var(--color-accent-strong);font-variant-numeric:tabular-nums;font-size:1.3rem;font-weight:300;line-height:1.2}.sg-howto p{margin:0}.sg-howto b{color:var(--color-ink)}.sg-tip{border-radius:var(--radius-sm);background:var(--color-surface);margin:18px 0 0;padding:12px 14px;font-size:.9rem}.sg-figure{border-radius:var(--radius-sm);background:var(--color-surface);margin:0;padding:clamp(12px,3vw,28px)}.foot-svg{width:100%;max-width:360px;height:auto;margin-inline:auto;display:block}.fd-wall{fill:var(--color-ink)}.fd-paper{fill:var(--color-paper);stroke:var(--color-line-strong);stroke-width:1.5px}.fd-foot{fill:var(--color-surface-2);stroke:var(--color-ink);stroke-width:2px}.fd-toe{fill:var(--color-surface-2);stroke:var(--color-ink);stroke-width:1.6px}.fd-mark{stroke:var(--color-accent);stroke-width:2px;stroke-dasharray:6 4}.fd-dim{stroke:var(--color-accent);stroke-width:2px}.fd-arrowhead{fill:var(--color-accent)}.fd-ext{stroke:var(--color-muted);stroke-width:1px}.fd-label,.fd-dim-label{fill:var(--color-ink-2);font:600 14px var(--font-sans);text-anchor:middle;direction:rtl}.fd-dim-label{fill:var(--color-accent-strong);font-weight:700}.sg-models{padding-block:clamp(40px,6vw,80px) 0}.sg-model-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:24px;display:grid}.sg-model{border:1px solid var(--color-line);border-radius:var(--radius-sm);align-content:start;justify-items:start;gap:12px;padding:20px;display:grid}.sg-model h3{margin:0;font-size:1.05rem;font-weight:800}.sg-model h3 a{text-decoration:none}.sg-model h3 a:hover{text-underline-offset:4px;text-decoration:underline}.sg-model .sg-table,.sg-model .notice{width:100%}.sg-help{border-radius:var(--radius-sm);background:var(--color-surface);margin-top:clamp(40px,6vw,72px);padding:clamp(20px,3vw,32px)}.sg-help h2{margin:0 0 12px;font-size:1.3rem;font-weight:800}.sg-help ul{color:var(--color-ink-2);gap:8px;margin:0;padding-inline-start:1.2em;list-style:outside;display:grid}.sg-help a{font-weight:700}@media (max-width:900px){.sg-measure{grid-template-columns:1fr}.sg-figure{max-width:420px}}