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0;text-align:center;font-family:var(--serif);font-size:1.15rem;line-height:1.7;color:var(--ink);text-wrap:balance}.about-lede:before{content:"";display:block;width:44px;height:3px;margin:0 auto 18px;border-radius:2px;background:var(--accent)}.cards{display:grid;gap:14px;grid-template-columns:minmax(0,1fr)}@media(min-width:720px){.cards{grid-template-columns:repeat(3,minmax(0,1fr))}.cards-4{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(min-width:1000px){.cards-4{grid-template-columns:repeat(4,minmax(0,1fr))}}.card{display:block;padding:18px;border:1px solid var(--line-strong);border-radius:12px;background:var(--panel);color:var(--ink);text-decoration:none}.card svg{display:block;width:28px;height:28px;margin-bottom:12px;fill:var(--accent)}.card h3{margin:0 0 6px;font:700 1.02rem/1.25 var(--sans)}.card p{margin:0;color:var(--muted);font-size:.925rem;line-height:1.5}a.card:hover{border-color:var(--ink)}.about-narrow details{border-top:1px solid var(--line);padding:12px 0}.about-narrow details:last-of-type{border-bottom:1px solid var(--line)}.about-narrow summary{cursor:pointer;font-weight:600}.about-narrow details p{margin:10px 0 2px;color:var(--muted)}.about a{color:var(--accent)}.about a.card{color:var(--ink)}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}.logo-spin{animation:none}}
.footer-social{display:flex;flex-wrap:wrap;align-items:center;gap:0 18px;margin-top:4px;color:var(--muted);font-size:.925rem}.footer-social a{display:inline-flex;align-items:center;min-height:44px;color:var(--ink);font-weight:600;text-decoration:none}.footer-social a:hover{text-decoration:underline;text-underline-offset:4px}.reshare{position:relative;display:grid;gap:12px;padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--paper)}.reshare h3{margin:0;font-size:1.05rem}.reshare p{margin:0}.reshare a{color:var(--accent)}.reshare-form{display:grid;gap:12px}.reshare-fields{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}.reshare-fields label{display:grid;gap:6px;font-weight:600;font-size:.925rem}.reshare-fields .text-input{font-weight:400}.reshare-at{position:relative;display:block}.reshare-at:before{content:"@";position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted);font-weight:500;pointer-events:none}.reshare-at .text-input{padding-left:28px}.reshare .check{align-items:flex-start;min-height:0;font-size:.925rem}.reshare .check input{flex:none;margin-top:2px}.reshare-actions{display:flex;flex-wrap:wrap;gap:10px}.reshare-actions .btn{margin:0}.reshare-trap{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.reshare-done{font-weight:600}.page h2[id]{scroll-margin-top:24px}
.ad-slot.ad-wait{display:block;height:0;margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0;overflow:hidden}.changes{margin-top:8px}.change{padding:22px 0;border-top:1px solid var(--line)}.change:last-of-type{border-bottom:1px solid var(--line)}.change h2{margin:0 0 6px;font-size:1.15rem}.change p{margin:0;max-width:65ch;line-height:1.6}
.about-tool{text-align:center}.about-tool p{margin-left:auto;margin-right:auto}
.hint a{color:var(--accent)}.page ol{margin:0 0 14px;padding-left:1.4em}.page .guide-crumb{margin:0 0 10px;font-size:.9rem}.sizes-fig{margin:22px 0 18px}.sizes-fig svg{display:block;width:100%;height:auto;max-width:640px}.sizes-fig rect{fill:var(--panel);stroke:var(--line-strong);stroke-width:1.5}.sizes-fig .sf-main rect{stroke:var(--accent);stroke-width:2.5}.sizes-fig text{text-anchor:middle;font-family:var(--sans)}.sizes-fig .sf-ratio{fill:var(--ink);font-weight:700;font-size:15px}.sizes-fig .sf-use{fill:var(--muted);font-size:12px}.sizes-fig figcaption{margin-top:8px;color:var(--muted);font-size:.875rem}.table-wrap{overflow-x:auto;margin:6px 0 18px}.page table{width:100%;border-collapse:collapse;font-size:.95rem}.page th,.page td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}.page th{color:var(--muted);font-weight:600;font-size:.85rem}.page tbody tr:last-child td{border-bottom:0}.page .guide-list{display:grid;gap:12px;margin:0 0 14px;padding:0;list-style:none}@media(max-width:360px){.site-nav{column-gap:14px}}.page .guide-list li{max-width:none;margin:0}.page .guide-list a.guide-card{display:block;padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--ink);text-decoration:none}.page .guide-list a.guide-card:hover{border-color:var(--line-strong)}.guide-card strong{display:block;font-size:1.05rem;line-height:1.35}.guide-card span{display:block;margin-top:6px;color:var(--muted);line-height:1.5}.guide-card small{display:block;margin-top:8px;color:var(--muted);font-size:.8rem}.page .guide-back{margin-top:34px}