._context_1e6u9_1{color:#142b4c;background:#f2f8ff;border:1px solid #cfe2f5;border-radius:12px;align-items:center;gap:22px;max-width:1440px;margin:12px auto;padding:14px 18px;font-size:14px;display:flex}._context_1e6u9_1 label{margin-bottom:5px;font-weight:750;display:block}._context_1e6u9_1 select{color:#112e50;background:#fff;border:1px solid #aac7e6;border-radius:6px;max-width:100%;min-height:44px;padding:8px}._contextInfo_1e6u9_1{flex-wrap:wrap;align-items:center;gap:4px 16px;display:flex}._contextInfo_1e6u9_1 small{flex-basis:100%}._context_1e6u9_1 a,._lesson_1e6u9_1 a,._register_1e6u9_1 a{color:#0058ce;text-underline-offset:3px;text-decoration:underline}._lesson_1e6u9_1,._register_1e6u9_1{color:#132c4c;max-width:1250px;margin:20px auto 48px;padding:0 22px}._hero_1e6u9_1{color:#fff;background:linear-gradient(110deg,#071d34,#134b70);border-radius:14px;margin-bottom:16px;padding:28px}._hero_1e6u9_1 h1{margin:10px 0;font-size:clamp(26px,4vw,40px);line-height:1.15}._hero_1e6u9_1 p{max-width:85ch}._hero_1e6u9_1 a{color:#9cdfff}._grid_1e6u9_1{grid-template-columns:210px minmax(0,1fr);align-items:start;gap:18px;display:grid}._nav_1e6u9_1{background:#f4f9ff;border:1px solid #d2e3f5;border-radius:10px;padding:14px;position:sticky;top:12px}._nav_1e6u9_1 a{overflow-wrap:anywhere;padding:9px 4px;font-size:14px;display:block}._body_1e6u9_1{min-width:0}._panel_1e6u9_1{background:#fff;border:1px solid #d5e3f3;border-radius:10px;margin:0 0 16px;padding:20px;scroll-margin-top:18px}._panel_1e6u9_1 h2{margin:0 0 12px;font-size:23px;line-height:1.3}._panel_1e6u9_1 h3{margin:12px 0 8px;font-size:18px}._panel_1e6u9_1 p,._panel_1e6u9_1 li{line-height:1.65}._panel_1e6u9_1 ul,._panel_1e6u9_1 ol{padding-left:23px}._panel_1e6u9_1 table{border-collapse:collapse;width:100%;font-size:14px}._panel_1e6u9_1 td,._panel_1e6u9_1 th{text-align:left;border-bottom:1px solid #dbe6f1;padding:10px}._formula_1e6u9_1{background:#edf6ff;border-radius:7px;padding:14px;font-size:19px;font-weight:650;line-height:1.7}._cards_1e6u9_1{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;display:grid}._cards_1e6u9_1>div{background:#f5f9fe;border-radius:8px;padding:14px}._optional_1e6u9_1{background:#faf8ff;border:1px dashed #9182cb;border-radius:10px;margin-bottom:16px;padding:16px}._optional_1e6u9_1 summary{cursor:pointer;min-height:32px;font-weight:750}._optional_1e6u9_1 p{line-height:1.6}._lab_1e6u9_1{grid-template-columns:1fr 1fr;gap:16px;display:grid}._lab_1e6u9_1 label{margin:10px 0;font-size:14px;font-weight:650;display:block}._lab_1e6u9_1 input{width:100%;min-height:36px;display:block}._lab_1e6u9_1 output{background:#e7f3ff;border-radius:10px;padding:16px;line-height:1.9;display:block}._quiz_1e6u9_1 fieldset{border:1px solid #d2e3f4;border-radius:8px;min-width:0;margin:0 0 14px;padding:14px}._quiz_1e6u9_1 legend{max-width:100%;font-weight:700}._quiz_1e6u9_1 label{align-items:center;gap:9px;min-height:44px;padding:5px;display:flex}._quiz_1e6u9_1 input{accent-color:#0066ef}._button_1e6u9_1{color:#fff;cursor:pointer;background:#0066ef;border:0;border-radius:7px;min-height:44px;margin:5px 8px 5px 0;padding:11px 18px;font-weight:650}._button_1e6u9_1:disabled{opacity:.5;cursor:not-allowed}._feedback_1e6u9_1{color:#1c5335;background:#edf8ee;padding:10px}._note_1e6u9_1{background:#f0f6fc;border-left:3px solid #0878e8;padding:12px;font-size:14px}._panel_1e6u9_1 progress{width:100%}._footer_1e6u9_1{flex-wrap:wrap;justify-content:space-between;gap:15px;display:flex}._register_1e6u9_1 details{border:1px solid #d2e3f4;border-radius:6px;margin:8px 0;padding:12px}._register_1e6u9_1 summary{cursor:pointer;font-weight:700}._register_1e6u9_1 pre{white-space:pre-wrap;overflow-wrap:anywhere}._context_1e6u9_1 :focus-visible,._lesson_1e6u9_1 :focus-visible,._register_1e6u9_1 :focus-visible{outline-offset:3px;outline:3px solid #f09412}@media (width<=760px){._context_1e6u9_1{margin:8px;padding:12px;display:block}._contextInfo_1e6u9_1{margin-top:9px;font-size:12px}._context_1e6u9_1 select{width:100%}._grid_1e6u9_1{display:block}._nav_1e6u9_1{margin-bottom:14px;position:static}._nav_1e6u9_1 a{padding:10px;display:inline-block}._lesson_1e6u9_1,._register_1e6u9_1{padding:0 12px}._hero_1e6u9_1{padding:20px}._panel_1e6u9_1{padding:15px}._lab_1e6u9_1{grid-template-columns:1fr}._panel_1e6u9_1 table{font-size:12px}._panel_1e6u9_1 td,._panel_1e6u9_1 th{padding:7px}._panel_1e6u9_1 h2{font-size:21px}}