/* Applied only to explicitly authorized teaching roots. */
html .spec-teaching[data-spec-series] .st-terms { margin:.35rem 0 1rem; padding:.5rem .8rem; border-inline-start:3px solid var(--st-accent); background:var(--st-soft); font-size:.88em; color:var(--st-muted); }
html .spec-teaching[data-spec-series] .st-terms > div { display:flex; flex-wrap:wrap; gap:.2em .7em; }
html .spec-teaching[data-spec-series] .st-terms dt { font-weight:650; }
html .spec-teaching[data-spec-series] .st-terms dd { margin:0; flex:1 1 14em; }
html .spec-teaching[data-spec-series] {
 --st-diagram-width:900px;
 --st-paper:#f2f6f8; --st-surface:#fff; --st-ink:#192d40; --st-muted:#4c6479;
 --st-line:#cbd9e3; --st-accent:#145f9d; --st-soft:#edf5fc;
 --paper:var(--st-paper); --surface:var(--st-surface); --surface-2:var(--st-soft); --surface-alt:var(--st-soft);
 --ink:var(--st-ink); --muted:var(--st-muted); --line:var(--st-line);
 --accent:var(--st-accent); --accent-2:var(--st-accent); --soft:var(--st-soft); --blue-soft:var(--st-soft); --teal-soft:var(--st-soft);
 --qr-paper:var(--st-paper); --qr-surface:var(--st-surface); --qr-ink:var(--st-ink); --qr-muted:var(--st-muted);
 --qr-line:var(--st-line); --qr-accent:var(--st-accent); --qr-soft:var(--st-soft);
 color:var(--st-ink); background:var(--st-paper); font-size:17px; line-height:1.9;
 font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;
}
html .spec-teaching[data-spec-series="nvme"] { --st-accent:#086b56; --st-soft:#e7f4ee; }
@media(prefers-color-scheme:dark) {
 html:not([data-theme="light"]) .spec-teaching { --st-paper:#101b26; --st-surface:#172635; --st-ink:#e5eef5; --st-muted:#b7c8d6; --st-line:#40566a; --st-accent:#81bdf0; --st-soft:#1b354b; }
 html:not([data-theme="light"]) .spec-teaching[data-spec-series="nvme"] { --st-accent:#79d8b4; --st-soft:#173d32; }
}
html[data-theme="dark"] .spec-teaching { --st-paper:#101b26; --st-surface:#172635; --st-ink:#e5eef5; --st-muted:#b7c8d6; --st-line:#40566a; --st-accent:#81bdf0; --st-soft:#1b354b; }
html[data-theme="dark"] .spec-teaching[data-spec-series="nvme"] { --st-accent:#79d8b4; --st-soft:#173d32; }
.spec-teaching * { box-sizing:border-box; }
.spec-teaching :is(h1,h2,h3,h4,h5,p,li,td,th,summary,strong,figcaption) { color:var(--st-ink); }
.spec-teaching svg text { font-family:inherit; }
.spec-teaching h1 { font-size:clamp(1.8rem,3.2vw,2.65rem); line-height:1.4; }
.spec-teaching h2 { font-size:clamp(1.3rem,2.5vw,1.7rem); line-height:1.55; }
.spec-teaching h3 { font-size:1.15rem; line-height:1.65; }
.spec-teaching h4 { font-size:1rem; line-height:1.7; }
.spec-teaching :is(h1,h2,h3,h4) { overflow-wrap:anywhere; }
.spec-teaching p { margin:.7rem 0 1.15rem; }
.spec-teaching :is(a,summary) { text-underline-offset:.2em; }
.spec-teaching :focus-visible { outline:3px solid var(--st-accent); outline-offset:4px; }
.spec-teaching :is(.qa-takeaway,.qa-answer-lead,.st-takeaway) { color:var(--st-ink); font-weight:650; font-size:1.06rem; line-height:1.9; }
.spec-teaching :is(.qa-question,.qr-card,.guided-walk) { border:1px solid var(--st-line); border-radius:12px; background:var(--st-surface); padding:clamp(18px,3vw,30px); margin:1.8rem 0; }
.spec-teaching :is(.qa-flow,.qr-note,.qr-observations,.st-context,.st-route) { background:var(--st-soft); border-left:4px solid var(--st-accent); padding:1rem 1.2rem; margin:1.4rem 0; }
.spec-teaching :is(.qr-step,.qa-qid,.st-label) { color:var(--st-accent); font-weight:700; }
.spec-teaching :is(.qa-citations,.qa-source-links,.qr-case-sources,.walk-source,.st-source) { font-size:.84rem; line-height:1.75; color:var(--st-muted); overflow-wrap:anywhere; }
.spec-teaching :is(.qr-table,.table-wrap) { overflow-x:auto; margin:1.4rem 0; border-radius:7px; }
.spec-teaching :is(th,td) { line-height:1.8; vertical-align:top; min-width:120px; }
.spec-teaching :is(table,td) { background:var(--st-surface); }
.spec-teaching th { background:var(--st-soft); }
.spec-teaching .st-step { border-left:3px solid var(--st-line); padding:.6rem 1rem; margin:1.2rem 0; }
.spec-teaching .st-step:target { border-left-color:var(--st-accent); background:var(--st-soft); }
.spec-teaching .st-glossary { border:1px solid var(--st-line); padding:.7rem 1rem; margin:1.4rem 0; border-radius:8px; }
.spec-teaching .st-glossary > summary { min-height:44px; cursor:pointer; }
.spec-teaching .st-specs { display:flex; flex-wrap:wrap; gap:.4rem 1rem; color:var(--st-muted); font-size:.8rem; line-height:1.8; margin:1rem 0; }
.spec-teaching .st-specs span { border-bottom:2px solid var(--st-accent); padding:.2rem 0; }
@media(max-width:620px) { .spec-teaching :is(.qa-question,.qr-card,.guided-walk) { padding:16px; } .spec-teaching .diagram svg { min-width:var(--st-diagram-width); } }
@media print {
 .spec-teaching { --st-paper:#fff!important; --st-surface:#fff!important; --st-ink:#000!important; --st-muted:#333!important; --st-line:#999!important; --st-accent:#000!important; --st-soft:#fff!important; }
 .spec-teaching details > * { display:block!important; }
 .spec-teaching details::details-content { content-visibility:visible!important; }
 .spec-teaching .st-step { break-inside:avoid; }
}