.ab-hero[data-astro-cid-kh7btl4r]{padding-block:clamp(56px,9vw,100px) clamp(20px,3vw,32px)}.ab-lead[data-astro-cid-kh7btl4r]{margin-top:20px;max-width:62ch;font-size:clamp(17px,1.6vw,20px);line-height:1.6;color:var(--color-ink-soft)}.ab-band[data-astro-cid-kh7btl4r]{padding-block:clamp(24px,4vw,40px) clamp(40px,6vw,60px)}.ab-sec[data-astro-cid-kh7btl4r]{padding-block:clamp(40px,6vw,72px)}.ab-body[data-astro-cid-kh7btl4r]{max-width:62ch;font-size:16px;line-height:1.68;color:var(--color-ink-soft)}.ab-body[data-astro-cid-kh7btl4r]+.ab-body[data-astro-cid-kh7btl4r]{margin-top:16px}.ab-prose[data-astro-cid-kh7btl4r]{margin-top:20px}.ab-link[data-astro-cid-kh7btl4r]{color:var(--color-brand-deep);text-decoration:underline;text-underline-offset:2px}.ab-why[data-astro-cid-kh7btl4r]{display:grid;grid-template-columns:1fr;gap:36px;align-items:start}@media(min-width:1000px){.ab-why[data-astro-cid-kh7btl4r]{grid-template-columns:1.08fr .92fr;gap:56px}}.ab-shapes[data-astro-cid-kh7btl4r]{border:1px solid var(--color-rule);border-radius:10px;background:var(--color-paper-soft);padding:22px 24px}.ab-shapes-h[data-astro-cid-kh7btl4r]{font-size:13.5px;font-weight:620;letter-spacing:-.008em;color:var(--color-ink)}.ab-shape[data-astro-cid-kh7btl4r]{padding:14px 0;border-bottom:1px solid var(--color-rule)}.ab-shape[data-astro-cid-kh7btl4r]:first-of-type{margin-top:6px;border-top:1px solid var(--color-rule)}.ab-shape[data-astro-cid-kh7btl4r] b[data-astro-cid-kh7btl4r]{display:block;font-size:15px;font-weight:600;letter-spacing:-.012em;color:var(--color-ink)}.ab-shape[data-astro-cid-kh7btl4r] span[data-astro-cid-kh7btl4r]{display:block;margin-top:4px;font-size:14px;line-height:1.55;color:var(--color-ink-soft)}.ab-shapes-note[data-astro-cid-kh7btl4r]{margin-top:14px;font-size:13px;line-height:1.5;color:var(--color-ink-muted)}.ab-thesis[data-astro-cid-kh7btl4r]{margin-top:16px;max-width:15ch}.ab-thesis-body[data-astro-cid-kh7btl4r]{font-size:17px;line-height:1.55}.ab-knows[data-astro-cid-kh7btl4r]{list-style:none;margin:clamp(36px,5vw,56px) 0 0;padding:0;display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--color-dark-rule)}@media(min-width:860px){.ab-knows[data-astro-cid-kh7btl4r]{grid-template-columns:repeat(3,minmax(0,1fr));column-gap:40px}}.ab-knows[data-astro-cid-kh7btl4r] li[data-astro-cid-kh7btl4r]{padding-block:20px;border-bottom:1px solid var(--color-dark-rule)}.ab-knows[data-astro-cid-kh7btl4r] b[data-astro-cid-kh7btl4r]{display:block;font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--color-on-dark)}.ab-knows[data-astro-cid-kh7btl4r] span[data-astro-cid-kh7btl4r]{display:block;margin-top:6px;font-size:14px;line-height:1.55;color:var(--color-on-dark-soft)}.ab-figure[data-astro-cid-kh7btl4r]{max-width:720px}.ab-proof-body[data-astro-cid-kh7btl4r]{margin-top:18px}.ab-figure-note[data-astro-cid-kh7btl4r]{margin-top:14px;max-width:62ch;font-size:14px;line-height:1.55;color:var(--color-ink-muted)}.ab-principles[data-astro-cid-kh7btl4r]{list-style:none;margin:36px 0 0;padding:0;max-width:580px;display:grid;gap:0}.ab-principle[data-astro-cid-kh7btl4r]{display:grid;grid-template-columns:auto 1fr;gap:16px;padding-block:20px;border-top:1px solid var(--color-rule)}.ab-principle[data-astro-cid-kh7btl4r]:last-child{border-bottom:1px solid var(--color-rule)}@media(min-width:900px){.ab-principle[data-astro-cid-kh7btl4r]{gap:28px}}.ab-principle-n[data-astro-cid-kh7btl4r]{font-family:var(--font-mono);font-size:12px;line-height:1.7;color:var(--color-brand)}.ab-principle[data-astro-cid-kh7btl4r] b[data-astro-cid-kh7btl4r]{display:block;font-size:16px;font-weight:600;letter-spacing:-.015em;color:var(--color-ink)}.ab-principle[data-astro-cid-kh7btl4r] p[data-astro-cid-kh7btl4r]{margin:6px 0 0;font-size:15px;line-height:1.6;color:var(--color-ink-soft)}.ab-answer[data-astro-cid-kh7btl4r]{margin-top:28px;border:1px solid var(--color-rule);border-left:3px solid var(--color-brand);border-radius:3px;background:var(--color-paper-soft);padding:clamp(20px,3vw,30px);max-width:78ch}.ab-answer[data-astro-cid-kh7btl4r] .ab-body[data-astro-cid-kh7btl4r]{max-width:none}.ab-faq[data-astro-cid-kh7btl4r]{margin-top:24px;display:grid;gap:22px;max-width:80ch}.ab-faq-item[data-astro-cid-kh7btl4r] dt[data-astro-cid-kh7btl4r]{font-weight:650;margin-bottom:6px;color:var(--color-ink)}.ab-faq-item[data-astro-cid-kh7btl4r] dd[data-astro-cid-kh7btl4r]{margin:0;font-size:16px;color:var(--color-ink-soft);line-height:1.65}.ab-cta[data-astro-cid-kh7btl4r]{padding-block:clamp(40px,6vw,64px) clamp(48px,7vw,80px)}.ab-cta-lead[data-astro-cid-kh7btl4r]{max-width:52ch;font-size:17px;line-height:1.55;color:var(--color-ink-soft)}.ab-cta-row[data-astro-cid-kh7btl4r]{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px}