._page_a214d93{max-width:860px;color:var(--text-primary);margin:0 auto;padding:64px 24px 32px}._page_a214d93>h1,._notesBody_a214d93>h1{letter-spacing:-.03em;font-size:clamp(28px,4.5vw,46px);font-weight:600;line-height:1.2}._page_a214d93 a{color:var(--text-accent)}._eyebrow_a214d93{color:var(--text-accent);letter-spacing:.14em;margin:0 0 20px;font-size:11px;font-weight:700}._intro_a214d93{color:var(--text-muted);margin:20px 0 32px;font-size:16px;line-height:1.8}._breadcrumb_a214d93{color:var(--text-muted);flex-wrap:wrap;gap:6px;margin-bottom:28px;font-size:13px;display:flex}._page_a214d93 ._breadcrumb_a214d93 a{color:var(--text-muted)}._page_a214d93 ._breadcrumb_a214d93 a:hover{color:var(--text-primary)}._subjectGrid_a214d93{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;display:grid}._page_a214d93 ._subjectCard_a214d93{border:1px solid var(--border-default);background:var(--bg-panel);color:var(--text-primary);border-radius:16px;flex-direction:column;padding:24px;transition:border-color .16s;display:flex}._subjectCard_a214d93:hover{border-color:var(--brand)}._subjectCard_a214d93 h2{margin-bottom:10px;font-size:22px;font-weight:600}._subjectCard_a214d93 p{color:var(--text-muted);font-size:14px;line-height:1.7}._subjectCard_a214d93>div{justify-content:space-between;align-items:center;margin-top:auto;padding-top:20px;font-size:13px;font-weight:600;display:flex}._topicList_a214d93{border-top:1px solid var(--border-default);padding:0;list-style:none}._topicList_a214d93>li{border-bottom:1px solid var(--border-default);grid-template-columns:32px 1fr auto;align-items:start;gap:16px;padding:20px 0;display:grid}._topicNumber_a214d93{color:var(--text-faint);padding-top:2px;font-size:14px;font-weight:600}._topicList_a214d93 h2{margin-bottom:4px;font-size:17px;font-weight:600}._page_a214d93 ._topicList_a214d93 h2 a{color:var(--text-primary)}._topicList_a214d93 p{color:var(--text-muted);font-size:14px;line-height:1.6}._topicLinks_a214d93{gap:8px;display:flex}._page_a214d93 ._topicLinks_a214d93 a{border:1px solid var(--border-default);white-space:nowrap;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600}._page_a214d93 ._topicLinks_a214d93 a:hover{border-color:var(--brand)}@media (max-width:600px){._topicList_a214d93>li{grid-template-columns:24px 1fr}._topicLinks_a214d93{grid-column:2}}._page_a214d93 ._callout_a214d93{background:var(--brand);color:#fff;border-radius:14px;justify-content:space-between;align-items:center;gap:16px;margin:32px 0;padding:18px 22px;display:flex}._callout_a214d93 div{flex-direction:column;gap:4px;display:flex}._callout_a214d93 span{opacity:.85;font-size:13px}._callout_a214d93:hover{background:var(--brand-hover)}._notes_a214d93{font-size:16px;line-height:1.85}._markdown_a214d93 h2{letter-spacing:-.02em;margin:40px 0 12px;font-size:22px;font-weight:600}._markdown_a214d93 h3{margin:28px 0 8px;font-size:17px;font-weight:600}._markdown_a214d93 p{margin-bottom:14px}._markdown_a214d93 ul,._markdown_a214d93 ol{margin:0 0 14px;padding-left:22px}._markdown_a214d93 ul{list-style:outside}._markdown_a214d93 ol{list-style:decimal}._markdown_a214d93 li{margin-bottom:6px}._markdown_a214d93 strong{color:var(--text-strong)}._markdown_a214d93 blockquote{border-left:3px solid var(--brand-accent);background:var(--bg-panel);border-radius:0 10px 10px 0;margin:20px 0;padding:14px 18px}._markdown_a214d93 blockquote p:last-child{margin-bottom:0}._markdown_a214d93 table{border-collapse:collapse;width:100%;margin:0 0 16px;font-size:14px;display:block;overflow-x:auto}._markdown_a214d93 th,._markdown_a214d93 td{border:1px solid var(--border-default);text-align:left;padding:8px 12px}._markdown_a214d93 th{background:var(--bg-panel);font-weight:600}._markdown_a214d93 .katex-display{padding:4px 0;overflow:auto hidden}._inlineMarkdown_a214d93,._inlineMarkdown_a214d93 p{display:inline}._exam_a214d93{border:1px solid var(--border-default);border-left:4px solid var(--brand);background:var(--bg-panel);border-radius:16px;margin-top:40px;padding:24px;font-size:15px;line-height:1.8}._exam_a214d93>h2{margin-bottom:12px;font-size:20px;font-weight:600}._exam_a214d93 ._markdown_a214d93 h3:first-child{margin-top:0}._pager_a214d93{justify-content:space-between;gap:16px;margin-top:40px;font-size:14px;font-weight:600;display:flex}._pager_a214d93 a{align-items:center;gap:6px;display:inline-flex}._questions_a214d93{flex-direction:column;gap:20px;padding:0;list-style:none;display:flex}._question_a214d93{border:1px solid var(--border-default);background:var(--bg-panel);border-radius:16px;padding:24px;line-height:1.75}._questionHead_a214d93{color:var(--text-muted);letter-spacing:.04em;justify-content:space-between;gap:12px;margin-bottom:12px;font-size:12px;font-weight:700;display:flex}._options_a214d93{flex-direction:column;gap:8px;margin-top:8px;display:flex}._option_a214d93{border:1px solid var(--border-default);background:var(--bg-app);width:100%;color:var(--text-primary);text-align:left;font:inherit;cursor:pointer;border-radius:12px;align-items:center;gap:12px;padding:10px 14px;display:flex}._option_a214d93:hover:not(:disabled){border-color:var(--brand)}._option_a214d93:disabled{cursor:default}._optionLetter_a214d93{background:var(--bg-panel-hover);border-radius:50%;flex:none;place-items:center;width:26px;height:26px;font-size:13px;font-weight:700;display:grid}._optionCorrect_a214d93{background:color-mix(in srgb, #2f8a5b 12%, var(--bg-app));border-color:#2f8a5b}._optionWrong_a214d93{background:color-mix(in srgb, #c2513f 12%, var(--bg-app));border-color:#c2513f}._optionFaded_a214d93{opacity:.55}._feedbackRight_a214d93,._feedbackWrong_a214d93{background:var(--bg-app);border-left:3px solid #2f8a5b;border-radius:12px;margin-top:14px;padding:14px 16px}._feedbackWrong_a214d93{border-left-color:#c2513f}._feedbackRight_a214d93>strong,._feedbackWrong_a214d93>strong{margin-bottom:6px;display:block}._feedbackRight_a214d93>button,._feedbackWrong_a214d93>button{color:var(--text-accent);cursor:pointer;margin-top:4px;font-size:13px;font-weight:600}._solution_a214d93{margin-top:12px}._solution_a214d93 summary{cursor:pointer;color:var(--text-accent);font-size:14px;font-weight:600}._solution_a214d93[open] summary{margin-bottom:12px}._solution_a214d93>div{background:var(--bg-app);border-radius:12px;padding:14px 16px}._signup_a214d93{border:1px solid var(--border-default);border-radius:16px;margin-top:40px;padding:28px}._signup_a214d93 h2{margin-bottom:8px;font-size:22px;font-weight:600}._signup_a214d93 p{color:var(--text-muted);margin-bottom:20px;line-height:1.7}._signup_a214d93>div{flex-wrap:wrap;align-items:center;gap:20px;font-size:14px;font-weight:600;display:flex}._page_a214d93 ._primaryButton_a214d93{background:var(--brand);color:#fff;border-radius:12px;padding:12px 20px}._primaryButton_a214d93:hover{background:var(--brand-hover)}._footer_a214d93{border-top:1px solid var(--border-default);color:var(--text-muted);margin-top:64px;padding-top:24px;font-size:12px;line-height:1.7}._footer_a214d93>div{flex-wrap:wrap;gap:24px;margin-top:12px;display:flex}._page_a214d93 ._footer_a214d93 a{color:var(--text-muted)}._notesBody_a214d93{min-width:0}._notes_a214d93 :is(h2,h3),._exam_a214d93 h2{scroll-margin-top:88px}._contents_a214d93{border:1px solid var(--border-default);background:var(--bg-panel);border-radius:14px;margin:0 0 24px;font-size:14px}._contents_a214d93>summary{cursor:pointer;padding:12px 16px;font-weight:600}._contentsTopics_a214d93,._contentsSections_a214d93{margin:0;padding:0;list-style:none}._contentsTopics_a214d93{padding:0 10px 12px}._page_a214d93 ._contentsTopics_a214d93 a{color:var(--text-muted);border-radius:8px;padding:5px 8px;line-height:1.4;display:block}._page_a214d93 ._contentsTopics_a214d93 a:hover{color:var(--text-primary)}._page_a214d93 ._contentsTopics_a214d93 a[aria-current=page]{color:var(--text-primary);font-weight:600}._contentsSections_a214d93{border-left:1px solid var(--border-default);margin:2px 0 6px 8px}._contentsSections_a214d93 li[data-depth="3"]{padding-left:12px;font-size:13px}._page_a214d93 ._contentsSections_a214d93 a[aria-current=location]{color:var(--text-accent);background:color-mix(in srgb, var(--brand) 8%, transparent);font-weight:600}@media (min-width:1180px){._notesPage_a214d93{grid-template-columns:250px minmax(0,860px);align-items:start;gap:40px;max-width:1180px;display:grid}._contents_a214d93{max-height:calc(100vh - 112px);margin:0;position:sticky;top:88px;overflow-y:auto}._contents_a214d93>summary{pointer-events:none;list-style:none}}._markdown_a214d93 img{border:1px solid var(--border-default);border-radius:10px;width:100%;max-width:420px;margin:20px auto 8px;display:block}._markdown_a214d93 img+em,._markdown_a214d93 p>img:only-child+em{text-align:center;display:block}
