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.o_DY0q_card{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);width:100%;box-shadow:var(--shadow-card);overflow:hidden}.o_DY0q_heading{justify-content:space-between;align-items:center;gap:16px;min-height:76px;padding:16px 20px;display:flex}.o_DY0q_eyebrow{color:var(--olive,#59684a);letter-spacing:.08em;margin:0 0 5px;font-size:12px;font-weight:700}.o_DY0q_heading h3{color:var(--ink,#262a24);margin:0;font-size:clamp(17px,2vw,21px);font-weight:550;line-height:1.35}.o_DY0q_duration{color:var(--muted,#72766d);flex:none;font-size:14px}.o_DY0q_player{aspect-ratio:16/9;object-fit:contain;background:#171815;width:100%;display:block}.o_DY0q_loadError{color:#783d22;background:#fff8f2;border-top:1px solid #ead7c9;margin:0;padding:12px 18px;font-size:14px;line-height:1.55}.o_DY0q_unavailable{border-top:1px solid var(--line);background:var(--surface-muted);align-items:center;gap:16px;min-height:130px;padding:22px;display:flex}.o_DY0q_playMark{width:42px;height:42px;color:var(--olive,#59684a);border:1px solid #d2d7ca;border-radius:50%;flex:0 0 42px;place-items:center;font-size:13px;display:grid}.o_DY0q_unavailable strong{color:var(--ink,#262a24);font-size:16px;font-weight:600}.o_DY0q_unavailable p{max-width:64ch;color:var(--muted,#72766d);margin:6px 0 0;font-size:15px;line-height:1.65}@media (max-width:600px){.o_DY0q_heading{min-height:68px;padding:13px 15px}.o_DY0q_unavailable{gap:12px;min-height:118px;padding:16px}.o_DY0q_playMark{flex-basis:36px;width:36px;height:36px}.o_DY0q_unavailable strong{font-size:15px}.o_DY0q_unavailable p{font-size:14px}}
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dl{gap:5px;margin:0;display:grid}.mhyh6a_conceptGrid dt{color:var(--olive);margin-top:7px;font-size:.82rem;font-weight:700}.mhyh6a_conceptGrid dd{color:#454a42;margin:0;font-size:.97rem;line-height:1.65}.mhyh6a_conceptOverlap{border-left:3px solid var(--brand-cobalt);background:var(--brand-cobalt-soft);padding:14px 16px;margin:16px 0 0!important}.mhyh6a_knowledge article{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);padding:clamp(20px,3vw,30px)}.mhyh6a_knowledge h3,.mhyh6a_rubric h3{letter-spacing:-.02em;margin:0 0 12px;font-size:1.3rem;font-weight:600}.mhyh6a_knowledge p{margin:0 0 13px}.mhyh6a_knowledge p:last-child{margin-bottom:0}.mhyh6a_knowledge ol{gap:8px;margin:0;padding-left:1.4rem;display:grid}.mhyh6a_knowledge li::marker{color:var(--olive);font-weight:700}.mhyh6a_example,.mhyh6a_note{border-left:3px solid var(--brand-cyan);background:var(--surface-muted);gap:6px;margin-top:16px;padding:15px 17px;display:grid}.mhyh6a_example 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