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0}summary{font-weight:600;cursor:pointer}.article{max-width:720px;margin:0 auto;padding:40px 20px 56px;font-size:1.08rem;line-height:1.75}.article h1{font-size:clamp(1.8rem,4.5vw,2.5rem);line-height:1.2;margin:8px 0 12px}.article .meta{color:var(--mut);font-size:.95rem;margin-bottom:28px}.article h2{font-size:1.45rem;margin:2.2em 0 .5em}.article li{margin:.35em 0}.article blockquote{margin:0;border-left:4px solid var(--b);padding:4px 16px;color:var(--mut)}.hero .meta-line{font-size:.95rem;margin:0;color:#475569}.article .cta{margin-top:40px}.crumbbar{background:#eff6ff}.crumbbar+.hero{padding:12px 0 44px}.crumbbar+section{padding-top:24px}.crumbs{display:block;gap:0;font-size:.88rem;color:#475569;padding-top:14px;padding-bottom:4px}.crumbs a{color:#334155}.icon{display:block;margin-bottom:8px}.hero .icon{margin-bottom:12px}.pcard .icon{margin-bottom:4px}.hero-grid{display:grid;grid-template-columns:1fr 300px;gap:32px;align-items:center}.hero-art{width:100%;height:auto}.area-art{float:right;width:380px;max-width:42%;margin:0 0 16px 28px}.area-art img{width:100%;height:auto;display:block}.area-art figcaption{font-size:.88rem;color:var(--mut);text-align:center;margin-top:6px}.diagram{margin:28px 0}.diagram img{width:100%;height:auto;border-radius:14px;border:1px solid #e2e8f0}.diagram figcaption{font-size:.9rem;color:var(--mut);text-align:center;margin-top:6px}@media(max-width:800px){.hero-grid{grid-template-columns:1fr}.hero-art{display:none}}@media(max-width:640px){.area-art{float:none;width:100%;max-width:100%;margin:0 0 20px}.crumbbar+.hero{padding:8px 0 32px}nav{gap:8px;padding:10px 0}.logo{font-size:1.1rem}nav .btn{padding:8px 14px;font-size:.9rem}.links{order:3;width:100%;flex-wrap:nowrap;overflow-x:auto;gap:16px;font-size:.92rem;padding-bottom:2px}.links a{white-space:nowrap}.hero{padding:40px 0}section{padding:40px 0}.pcard{grid-template-columns:1fr}.pcard .price{text-align:left;white-space:normal}}