.article-youtube[data-astro-cid-pbxovgje]{margin:36px 0 44px}.ay-player[data-astro-cid-pbxovgje]{aspect-ratio:16/9;background:#0d2527;border-radius:18px;position:relative;overflow:hidden}.ay-launch[data-astro-cid-pbxovgje]{cursor:pointer;color:#fff;background:#0d2527;border:0;width:100%;height:100%;padding:0;display:block;position:relative}.ay-launch[data-astro-cid-pbxovgje] img[data-astro-cid-pbxovgje]{object-fit:contain;width:100%;height:100%;display:block}.ay-launch[data-astro-cid-pbxovgje]:focus-visible{outline:4px solid var(--color-accent);outline-offset:-5px}.ay-play[data-astro-cid-pbxovgje]{background:var(--color-accent);color:#112c2e;border-radius:50%;place-items:center;width:68px;height:68px;padding-left:4px;font-size:26px;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 4px 22px #0009}.ay-label[data-astro-cid-pbxovgje]{font:inherit;background:#102c2ef0;border-radius:8px;padding:7px 12px;font-size:14px;font-weight:700;position:absolute;bottom:16px;right:16px}.ay-player[data-astro-cid-pbxovgje] iframe{border:0;width:100%;height:100%;display:block}figcaption[data-astro-cid-pbxovgje]{color:var(--fg-3);margin-top:12px;font-size:13px;line-height:1.9}.ay-noscript[data-astro-cid-pbxovgje]{padding:12px;display:block}@media (width<=480px){.ay-play[data-astro-cid-pbxovgje]{width:52px;height:52px;font-size:21px}.ay-label[data-astro-cid-pbxovgje]{font-size:12px;bottom:8px;right:8px}}.math-case-visual[data-astro-cid-psgvwqnq]{min-width:0;margin:22px 0 0}.math-case-person[data-astro-cid-psgvwqnq]{grid-template-columns:104px minmax(0,1fr);align-items:center;gap:20px;display:grid}.math-case-portrait[data-astro-cid-psgvwqnq]{object-fit:contain;background:#e1e8e2;border-radius:12px;width:104px;height:132px;display:block}.math-case-eyebrow[data-astro-cid-psgvwqnq]{color:#586d63;font-size:11px}.math-case-name[data-astro-cid-psgvwqnq]{color:#183b3b;font-size:23px;line-height:1.6;display:block}.math-case-visual[data-astro-cid-psgvwqnq] .math-case-role[data-astro-cid-psgvwqnq]{margin:3px 0 6px;font-size:14px;line-height:1.85}.math-case-visual[data-astro-cid-psgvwqnq] .math-case-credit[data-astro-cid-psgvwqnq]{color:#53685e;margin:0;font-size:11px;line-height:1.8}.math-case-visual[data-astro-cid-psgvwqnq] .math-case-question[data-astro-cid-psgvwqnq]{color:#183b3b;margin:24px 0 14px;font-size:21px;font-weight:650;line-height:1.9}.math-case-diagram[data-astro-cid-psgvwqnq]{margin:0}.math-case-diagram[data-astro-cid-psgvwqnq]>a[data-astro-cid-psgvwqnq]{border-radius:14px;display:block;position:relative;overflow:hidden}.math-case-diagram[data-astro-cid-psgvwqnq] img[data-astro-cid-psgvwqnq]{background:#edf3ef;width:100%;height:auto;display:block}.math-case-zoom[data-astro-cid-psgvwqnq]{color:#183b3b;background:#fffefa;border-radius:20px;padding:3px 8px;font-size:11px;position:absolute;bottom:7px;left:10px}.math-case-steps[data-astro-cid-psgvwqnq]{grid-template-columns:repeat(var(--step-count),minmax(0,1fr));direction:ltr;gap:9px;margin:10px 0 12px;display:grid}.math-case-steps[data-astro-cid-psgvwqnq] span[data-astro-cid-psgvwqnq]{text-align:center;color:#183b3b;direction:rtl;background:#edf3ef;border-radius:8px;padding:7px 5px;font-size:13px;line-height:1.8}.math-case-diagram[data-astro-cid-psgvwqnq] figcaption[data-astro-cid-psgvwqnq]{color:#53685e;margin:0 0 18px;font-size:13px;line-height:1.95}.math-case-visual[data-astro-cid-psgvwqnq] .math-case-significance[data-astro-cid-psgvwqnq]{background:#e4eee7;border-right:3px solid #187f78;border-radius:8px;margin:0;padding:14px 18px;font-size:16px;line-height:1.9}@media (width<=560px){.math-case-person[data-astro-cid-psgvwqnq]{grid-template-columns:82px minmax(0,1fr);gap:13px}.math-case-portrait[data-astro-cid-psgvwqnq]{width:82px;height:110px}.math-case-name[data-astro-cid-psgvwqnq]{font-size:21px}.math-case-visual[data-astro-cid-psgvwqnq] .math-case-question[data-astro-cid-psgvwqnq]{font-size:19px}.math-case-steps[data-astro-cid-psgvwqnq]{gap:5px}.math-case-steps[data-astro-cid-psgvwqnq] span[data-astro-cid-psgvwqnq]{padding:6px 3px;font-size:12px}.math-case-visual[data-astro-cid-psgvwqnq] .math-case-role[data-astro-cid-psgvwqnq]{font-size:13px}.math-case-visual[data-astro-cid-psgvwqnq] .math-case-credit[data-astro-cid-psgvwqnq]{font-size:10px}.math-case-visual[data-astro-cid-psgvwqnq] .math-case-significance[data-astro-cid-psgvwqnq]{padding:12px 14px;font-size:15px}}