/* Toán 11: one lesson heading, two clear study parts; scope changes to the 11-only layout. */
.gsv-t11-chapter-book .gsv-t11-lessons { display:grid;gap:12px; }
.gsv-t11-merged-lesson { display:grid!important; grid-template-columns:minmax(190px,.85fr) minmax(0,1.35fr); gap:14px; align-items:center; width:100%; box-sizing:border-box; }
.gsv-t11-merged-lesson .gsv-t11-lesson-heading h3 { margin:0 0 6px; line-height:1.35; }
.gsv-t11-merged-lesson .gsv-t11-lesson-heading p { margin:0; opacity:.8; font-size:.88rem; }
.gsv-t11-two-parts { display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;min-width:0; }
.gsv-t11-part { min-width:0; padding:12px; border:1px solid rgba(56,97,137,.23); border-radius:12px; background:rgba(225,239,250,.20); box-sizing:border-box; }
.gsv-t11-part h4 { margin:0 0 5px; font-size:1rem; font-weight:700; }
.gsv-t11-part small { display:block;line-height:1.35;min-height:2.7em;margin-bottom:8px; }
.gsv-t11-actions { display:flex;flex-wrap:wrap; gap:7px; align-items:center; }
.gsv-t11-actions button { white-space:normal; min-height:36px; max-width:100%; }
@media(max-width:850px){.gsv-t11-merged-lesson{grid-template-columns:1fr;}}
@media(max-width:500px){.gsv-t11-two-parts{grid-template-columns:1fr;} .gsv-t11-part small{min-height:0;}}