.learning-hero { padding: 24px 0 32px; max-width: 830px; }
.learning-hero h1 { margin-bottom: 18px; }
.learning-intro { display: flex; flex-wrap: wrap; gap: 12px 24px; color: #d9c28f; font-size: 14px; }
.lesson-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.lesson-card { border-top: 1px solid var(--line); padding: 0 0 22px; min-width: 0; }
.lesson-card img { display: block; width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover; }
.lesson-card h2, .lesson-card h3 { font-size: 21px; margin: 16px 0 12px; }
.lesson-card p { color: #c1cdc6; font-size: 14px; }
.lesson-card .lesson-meta { color: #d9c28f; font-size: 13px; margin: 12px 0; }
.lesson-card .button { margin-top: 10px; }
.learning-section { padding: 32px 0; border-top: 1px solid var(--line); }
.learning-section h2 { font-size: 26px; }
.lesson-layout { display: grid; grid-template-columns: minmax(0,1fr) 270px; gap: 30px; align-items: start; }
.player-wrap { background: #08100d; }
.lesson-player { display: block; width: 100%; aspect-ratio: 16/9; background: #030a08; }
.player-tools { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; padding: 16px; }
.player-tools p { margin: 0; color: var(--muted); font-size: 13px; }
.chapter-list { display: grid; gap: 8px; padding: 0; list-style: none; }
.chapter-list button { display: flex; width: 100%; gap: 12px; align-items: flex-start; background: transparent; border: 1px solid #54736466; padding: 12px; text-align: left; color: #e1e9e3; font-size: 13px; }
.chapter-list button[aria-current="true"] { border-color: var(--accent); background: #213e32; }
.chapter-list time { color: var(--accent); white-space: nowrap; }
.chapter-aside h2 { font-size: 21px; }
.lesson-note { font-size: 13px; color: var(--muted); margin: 18px 0; }
.quiz-options { display: grid; gap: 12px; max-width: 850px; margin: 20px 0; }
.quiz-options label { padding: 15px 16px; border: 1px solid var(--line); cursor: pointer; display: flex; gap: 12px; align-items: flex-start; }
.quiz-options input { margin-top: 6px; accent-color: var(--accent); }
.quiz-options input:focus-visible { outline: 2px solid var(--gold); }
.quiz-feedback { padding: 16px 20px; border-left: 3px solid var(--accent); background: #19382c; margin-top: 20px; }
.transcript { max-width: 920px; }
.transcript details { padding: 18px 0; }
.transcript p { line-height: 1.95; }
.support-mail { font-size: 22px; color: var(--accent); overflow-wrap: anywhere; text-decoration: underline; }
.support-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.site-footer .record-link { display: block; margin-top: 6px; font-size: 12px; }
.content-first { border-left: 3px solid var(--accent); padding: 18px 22px; background: #17352a; margin: 24px 0; }
.content-first p { color: #c4d5c9; margin: 8px 0 0; font-size: 14px; }
.content-first a { color: var(--accent); text-decoration: underline; }
@media (max-width:1000px) { .lesson-grid { grid-template-columns: 1fr 1fr; } .lesson-layout { grid-template-columns: 1fr; } .chapter-list { grid-template-columns: 1fr 1fr; } }
@media (max-width:650px) { .lesson-grid,.support-columns { grid-template-columns: 1fr; } .lesson-layout { gap: 25px; } .chapter-list { grid-template-columns: 1fr; } .learning-section h2 { font-size: 23px; } .learning-hero { padding-top: 18px; } }