/**handles:sn-style,katex,addtoany**/
:root{--sn-primary:#4355b9;--sn-on-primary:#ffffff;--sn-primary-dark:#2c3d9f;--sn-primary-container:#dde1ff;--sn-on-primary-container:#001159;--sn-primary-container-hover:#b8c3ff;--sn-surface:#fdfbff;--sn-on-surface:#1b1b1f;--sn-surface-container:#f2f0f7;--sn-surface-container-high:#e4e1ec;--sn-outline:#c6c5d0;--sn-outline-variant:#e4e1ec;--sn-on-surface-variant:#45464f;--sn-muted:#76767f;--sn-meta-on-container:#5b5d6b;--sn-state-text-hover:#eef0ff;--sn-font-body:Roboto,system-ui,-apple-system,"Segoe UI",sans-serif;--sn-font-display:"Roboto Slab",Georgia,serif;--sn-r-band:28px;--sn-r-button:24px;--sn-r-chip:20px;--sn-r-card:16px;--sn-r-thumb:12px;--sn-r-chip-sm:8px;--sn-gutter:24px;--sn-shadow-hover:0 2px 8px rgba(0, 0, 0, .15);--sn-ease:150ms ease;--sn-max:1240px}*,::after,::before{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--sn-surface);color:var(--sn-on-surface);font-family:var(--sn-font-body);font-size:16px;line-height:1.6}a{color:var(--sn-primary)}a:hover{color:var(--sn-primary-dark)}img{max-width:100%;height:auto}button{font-family:inherit}:is(a,button,input,[tabindex]):focus-visible{outline:2px solid var(--sn-primary);outline-offset:2px}.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);white-space:nowrap;border:0;padding:0;margin:-1px}.skip-link{left:8px;top:8px;z-index:100;background:var(--sn-primary-container);color:var(--sn-on-primary-container);padding:10px 16px;border-radius:var(--sn-r-chip)}.skip-link:focus{position:absolute!important;width:auto;height:auto;clip:auto;clip-path:none;margin:0}.sn-page{width:var(--sn-max);max-width:100%;margin:0 auto}.sn-container{padding:0 var(--sn-gutter)}.sn-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--sn-font-body);font-size:14px;font-weight:500;line-height:1;padding:12px 26px;border-radius:var(--sn-r-button);border:0;cursor:pointer;text-decoration:none;transition:background-color var(--sn-ease),color var(--sn-ease),box-shadow var(--sn-ease);min-height:44px}.sn-btn--filled{background:var(--sn-primary);color:var(--sn-on-primary)}.sn-btn--filled:hover{background:var(--sn-primary-dark);color:var(--sn-on-primary)}.sn-btn--tonal{background:var(--sn-primary-container);color:var(--sn-on-primary-container)}.sn-btn--tonal:hover{background:var(--sn-primary-container-hover);color:var(--sn-on-primary-container)}.sn-btn--outlined{background:0 0;color:var(--sn-primary);border:1px solid var(--sn-outline);padding:10px 20px;border-radius:var(--sn-r-chip);min-height:40px}.sn-btn--outlined:hover{background:var(--sn-state-text-hover);color:var(--sn-primary)}.sn-btn--text{background:0 0;color:var(--sn-primary);padding:0 18px;border-radius:var(--sn-r-chip);min-height:40px}.sn-btn--text:hover{background:var(--sn-state-text-hover)}.sn-btn--sm{font-size:13px;padding:9px 18px;border-radius:18px;min-height:36px}.sn-kicker{display:block;font-size:12px;font-weight:500;letter-spacing:.05em;text-transform:uppercase;color:var(--sn-primary)}.sn-kicker a{color:inherit;text-decoration:none}.sn-kicker a:hover{text-decoration:underline}.sn-label{display:block;font-size:11px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--sn-primary);margin-bottom:8px}.sn-topbar{background:var(--sn-surface-container)}.sn-nav{display:flex;align-items:center;gap:8px;padding:12px var(--sn-gutter);position:relative}.sn-brand{font-family:var(--sn-font-display);font-weight:700;font-size:20px;color:var(--sn-on-surface);text-decoration:none;margin-right:24px;white-space:nowrap}.sn-brand:hover{color:var(--sn-on-surface)}.sn-chiprow ul,.sn-chips{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:8px}.sn-chips a{display:inline-flex;align-items:center;font-size:14px;font-weight:500;padding:10px 16px;border-radius:var(--sn-r-chip);color:var(--sn-on-surface-variant);text-decoration:none;transition:background-color var(--sn-ease);white-space:nowrap}.sn-chips a:hover{background:var(--sn-surface-container-high);color:var(--sn-on-surface-variant)}.sn-chips .current-category-ancestor>a,.sn-chips .current-menu-ancestor>a,.sn-chips .current-menu-item>a,.sn-chips .current-menu-parent>a,.sn-chips .current-page-ancestor>a,.sn-chips .current-post-ancestor>a,.sn-chips .current-post-parent>a,.sn-chips .current_page_item>a{background:var(--sn-primary-container);color:var(--sn-on-primary-container)}.sn-chips .sub-menu{display:none}.sn-spacer{flex:1}.sn-search{display:flex;align-items:center;gap:12px;background:var(--sn-surface-container-high);border-radius:28px;padding:0 20px;min-width:280px;color:var(--sn-on-surface-variant);margin:0}.sn-search svg{flex:none}.sn-search input[type=search]{flex:1;border:0;background:0 0;font:inherit;font-size:14px;color:var(--sn-on-surface);padding:12px 0;min-width:0;outline:0}.sn-search input::placeholder{color:var(--sn-on-surface-variant);opacity:1}.sn-search input::-webkit-search-decoration{-webkit-appearance:none}.sn-search button{display:none}.sn-iconbtn{width:44px;height:44px;display:grid;place-items:center;border-radius:22px;border:0;background:var(--sn-surface-container-high);color:var(--sn-on-surface-variant);cursor:pointer;padding:0;transition:background-color var(--sn-ease)}.sn-iconbtn:hover{background:var(--sn-primary-container);color:var(--sn-on-primary-container)}.sn-nav__actions{display:none;gap:8px}.sn-chiprow{display:none}.sn-hero{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:0;align-items:stretch;margin:24px 0;background:var(--sn-primary-container);border-radius:var(--sn-r-band);overflow:hidden}.sn-hero__body{padding:48px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:16px}.sn-hero__title{font-family:var(--sn-font-display);font-weight:500;font-size:42px;line-height:1.12;margin:0;color:var(--sn-on-primary-container)}.sn-hero__title a{color:inherit;text-decoration:none}.sn-hero__excerpt{font-size:16px;line-height:1.6;margin:0;color:var(--sn-primary-dark);max-width:50ch}.sn-hero__excerpt p{margin:0}.sn-hero__actions{display:flex;gap:12px;align-items:center;margin-top:8px;flex-wrap:wrap}.sn-hero__meta{font-size:12px;color:var(--sn-meta-on-container)}.sn-hero__figure{margin:0;min-height:100%}.sn-hero__figure img{width:100%;height:100%;object-fit:cover;display:block}.sn-hero__figure--empty{background:linear-gradient(135deg,var(--sn-primary-container-hover),var(--sn-primary));min-height:320px}.sn-section{margin:32px 0 40px}.sn-section__head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.sn-section__title{font-family:var(--sn-font-display);font-weight:500;font-size:24px;margin:0}.sn-archive-title{font-family:var(--sn-font-display);font-weight:500;font-size:32px;margin:32px 0 8px}.sn-archive-desc{color:var(--sn-on-surface-variant);margin:0 0 8px;max-width:62ch}.sn-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.sn-card{background:var(--sn-surface-container);border-radius:var(--sn-r-card);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow var(--sn-ease);position:relative}.sn-card:hover{box-shadow:var(--sn-shadow-hover)}.sn-card__figure{margin:0}.sn-card__figure img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}.sn-card__figure--empty{aspect-ratio:16/9;background:linear-gradient(135deg,var(--sn-primary-container),var(--sn-primary-container-hover))}.sn-card__body{display:flex;flex-direction:column;gap:8px;padding:16px;flex:1}.sn-chip{align-self:flex-start;font-size:11px;font-weight:500;padding:5px 10px;border-radius:var(--sn-r-chip-sm);border:1px solid var(--sn-outline);color:var(--sn-on-surface-variant);text-decoration:none;line-height:1.2}.sn-chip:hover{background:var(--sn-surface-container-high);color:var(--sn-on-surface-variant)}.sn-card__title{font-family:var(--sn-font-display);font-weight:500;font-size:17px;line-height:1.3;margin:0;flex:1}.sn-card__title a{color:var(--sn-on-surface);text-decoration:none}.sn-card__title a::after{content:"";position:absolute;inset:0}.sn-card .sn-chip{position:relative;z-index:1}.sn-card__meta{font-size:12px;color:var(--sn-muted)}.sn-card__meta .sn-card__cat{display:none}.sn-pagination{display:flex;gap:8px;justify-content:center;margin-top:28px;flex-wrap:wrap}.sn-pagination .page-numbers{font-size:14px;width:40px;height:40px;display:grid;place-items:center;border-radius:20px;color:var(--sn-on-surface-variant);text-decoration:none;transition:background-color var(--sn-ease)}.sn-pagination a.page-numbers:hover{background:var(--sn-surface-container-high);color:var(--sn-on-surface-variant)}.sn-pagination .page-numbers.current{font-weight:500;background:var(--sn-primary-container);color:var(--sn-on-primary-container)}.sn-pagination .page-numbers.dots{color:var(--sn-muted)}.sn-pagination .page-numbers.next,.sn-pagination .page-numbers.prev{width:auto;padding:0 18px;font-weight:500;color:var(--sn-primary)}.sn-pagination .page-numbers.next:hover,.sn-pagination .page-numbers.prev:hover{background:var(--sn-state-text-hover);color:var(--sn-primary)}.sn-allposts-link{display:none}.sn-band{background:var(--sn-primary);color:var(--sn-on-primary);border-radius:var(--sn-r-band);padding:48px;margin:0 0 24px}.sn-band__title{font-family:var(--sn-font-display);font-weight:500;font-size:32px;line-height:1.15;margin:0 0 14px;max-width:22ch}.sn-band__text{font-size:15px;line-height:1.6;margin:0 0 22px;max-width:56ch;color:var(--sn-primary-container)}.sn-band--next{padding:32px 40px;margin:0 0 32px;display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}.sn-band--next p{margin:0;font-family:var(--sn-font-display);font-weight:500;font-size:22px}.sn-band--next p a{color:var(--sn-on-primary);text-decoration:none}.sn-band--next p a:hover{text-decoration:underline}.sn-footer{padding:24px;display:flex;justify-content:space-between;align-items:baseline;gap:16px;background:var(--sn-surface-container);flex-wrap:wrap}.sn-footer__brand{font-family:var(--sn-font-display);font-weight:700;font-size:15px;color:var(--sn-on-surface);text-decoration:none}.sn-footer__links{display:flex;gap:22px;font-size:13px;flex-wrap:wrap;align-items:baseline}.sn-footer__links ul{list-style:none;margin:0;padding:0;display:contents}.sn-footer__links a{color:var(--sn-on-surface-variant);text-decoration:none}.sn-footer__links a:hover{color:var(--sn-primary)}.sn-footer__copy{color:var(--sn-muted)}.sn-article-header{padding:40px 24px 32px;max-width:860px}.sn-article-header .sn-kicker{margin-bottom:12px}.sn-article-title{font-family:var(--sn-font-display);font-weight:500;font-size:44px;line-height:1.12;margin:0 0 14px}.sn-article-meta{margin:0;font-size:13px;color:var(--sn-muted)}.sn-article-meta a{color:inherit;text-decoration:none}.sn-article-meta a:hover{text-decoration:underline}.sn-article{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;padding:0 24px 48px;align-items:start}.sn-content{max-width:62ch;font-size:16px;line-height:1.7}.sn-content>*{margin-top:0;margin-bottom:20px}.sn-content h2{font-family:var(--sn-font-display);font-weight:500;font-size:26px;line-height:1.25;margin:0 0 14px;scroll-margin-top:24px}.sn-content h3{font-family:var(--sn-font-display);font-weight:500;font-size:20px;margin:0 0 12px}.sn-content h4{font-weight:500;font-size:17px;margin:0 0 10px}.sn-content p{margin:0 0 20px}.sn-content .wp-block-image img,.sn-content figure img,.sn-content img{border-radius:var(--sn-r-card);height:auto}.sn-content figure{margin:0 0 8px}.sn-content .wp-caption-text,.sn-content figcaption{font-size:12px;color:var(--sn-muted);margin:8px 0 28px}.sn-content .wp-block-image,.sn-content .wp-caption{margin-bottom:28px;max-width:100%}.sn-content blockquote{margin:0 0 20px;padding:4px 0 4px 20px;border-left:3px solid var(--sn-primary-container-hover);color:var(--sn-on-surface-variant)}.sn-content pre{background:var(--sn-surface-container);border-radius:var(--sn-r-card);padding:16px 18px;overflow:auto;font-size:14px}.sn-content code{background:var(--sn-surface-container);border-radius:6px;padding:2px 6px;font-size:.92em}.sn-content pre code{background:0 0;padding:0}.sn-content table{border-collapse:collapse;width:100%;font-size:15px;margin-bottom:24px}.sn-content td,.sn-content th{border-bottom:1px solid var(--sn-outline-variant);padding:10px 12px;text-align:left}.sn-content th{font-weight:500;color:var(--sn-on-surface-variant)}.sn-content ol,.sn-content ul{padding-left:1.4em;margin:0 0 20px}.sn-content li{margin-bottom:6px}.sn-content .wp-block-embed,.sn-content iframe,.sn-content video{max-width:100%;border-radius:var(--sn-r-card)}.sn-content .alignfull,.sn-content .alignwide{max-width:100%}.sn-content hr{border:0;border-top:1px solid var(--sn-outline-variant);margin:28px 0}.is-style-sn-theorem,.sn-theorem{background:var(--sn-primary-container);border-radius:var(--sn-r-card);padding:22px 24px;margin:0 0 28px}.is-style-sn-theorem .sn-label,.sn-theorem .sn-label{margin-bottom:8px}.is-style-sn-theorem .sn-theorem__statement,.is-style-sn-theorem>p:first-of-type,.sn-theorem__statement{margin:0 0 12px;font-family:var(--sn-font-display);font-weight:500;font-size:19px;line-height:1.4;color:var(--sn-on-primary-container)}.is-style-sn-theorem .sn-theorem__formula,.is-style-sn-theorem>p:last-of-type:not(:first-of-type),.sn-theorem__formula{margin:0;font-size:28px;line-height:1.3;color:var(--sn-primary-dark)}.is-style-sn-theorem>p:only-of-type{margin:0}.is-style-sn-example,.sn-example{background:var(--sn-surface-container);border-radius:var(--sn-r-card);padding:18px 22px;margin:0 0 28px}.is-style-sn-example p,.sn-example p{margin:0 0 6px;font-size:15px}.is-style-sn-example p:last-child,.sn-example p:last-child{margin:0;font-size:16px;font-weight:500}.is-style-sn-example .sn-result,.is-style-sn-example strong,.sn-example .sn-result,.sn-example strong{color:var(--sn-primary-dark);font-weight:500}.is-style-sn-example>.sn-label,.is-style-sn-theorem>.sn-label{margin-bottom:8px}.sn-share{display:flex;gap:10px;align-items:center;padding-top:8px;flex-wrap:wrap}.sn-share__label{font-size:12px;font-weight:500;color:var(--sn-muted)}.sn-sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:24px}.sn-panel{background:var(--sn-surface-container);border-radius:var(--sn-r-card);padding:18px 20px}.sn-toc{margin:0;padding:0;list-style:none;display:flex;flex-direction:column}.sn-toc li{border-top:1px solid var(--sn-outline-variant)}.sn-toc a{display:block;padding:10px 0;font-size:13px;color:var(--sn-on-surface);text-decoration:none}.sn-toc a.is-active,.sn-toc a:hover{color:var(--sn-primary)}.sn-related{display:flex;flex-direction:column}.sn-related a{display:block;border-top:1px solid var(--sn-outline-variant);padding:11px 0;text-decoration:none;color:var(--sn-on-surface)}.sn-related a:hover .sn-related__title{color:var(--sn-primary)}.sn-related__title{display:block;font-size:14px;line-height:1.35;font-weight:500}.sn-related__cat{display:block;margin-top:3px;font-size:11px;color:var(--sn-muted)}.sn-comments{max-width:62ch;padding:0 24px 48px}.sn-comments .comment-list{list-style:none;padding:0;margin:0 0 24px}.sn-comments .comment{border-top:1px solid var(--sn-outline-variant);padding:16px 0}.sn-comments .comment-meta{font-size:13px;color:var(--sn-muted);margin-bottom:6px}.sn-comments .comment-content{font-size:15px}.sn-comments .comment-reply-link{font-size:13px}.sn-comments input:not([type=submit]):not([type=checkbox]),.sn-comments textarea{width:100%;border:1px solid var(--sn-outline);border-radius:12px;padding:10px 12px;font:inherit;background:var(--sn-surface)}.sn-comments input[type=submit]{background:var(--sn-primary);color:#fff;border:0;border-radius:var(--sn-r-button);padding:12px 26px;font-weight:500;cursor:pointer}.sn-comments input[type=submit]:hover{background:var(--sn-primary-dark)}.sn-page-content{max-width:62ch;padding:24px 24px 48px}.sn-page-content .sn-article-title{font-size:40px}.sn-empty{padding:48px 24px;text-align:center;color:var(--sn-on-surface-variant)}.sn-content .addtoany_share_save_container{margin:24px 0}@media (max-width:768px){:root{--sn-gutter:16px}.sn-nav{padding:12px 16px;justify-content:space-between;flex-wrap:wrap}.sn-brand{font-size:17px;margin-right:0}.sn-nav>.sn-chips,.sn-spacer{display:none}.sn-nav__actions{display:flex}.sn-search{display:none;width:100%;min-width:0;order:10;margin-top:8px}.sn-nav.is-search-open .sn-search{display:flex}.sn-nav.is-menu-open>.sn-chips{display:flex;flex-direction:column;align-items:stretch;width:100%;order:11;margin-top:8px;padding:8px 0;gap:4px}.sn-nav.is-menu-open>.sn-chips a{display:flex;min-height:44px}.sn-chiprow{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding:12px 16px;background:var(--sn-surface)}.sn-chiprow::-webkit-scrollbar{display:none}.sn-chiprow ul{width:max-content}.sn-chiprow a{white-space:nowrap;font-size:13px;font-weight:500;padding:8px 14px;border-radius:var(--sn-r-chip-sm);border:1px solid var(--sn-outline);color:var(--sn-on-surface-variant);text-decoration:none;display:inline-flex;min-height:36px;align-items:center}.sn-chiprow .current-menu-ancestor>a,.sn-chiprow .current-menu-item>a,.sn-chiprow .current-post-ancestor>a,.sn-chiprow .current-post-parent>a,.sn-chiprow .current_page_item>a{background:var(--sn-primary-container);color:var(--sn-on-primary-container);border-color:transparent}.sn-chiprow .sub-menu{display:none}.sn-hero{grid-template-columns:1fr;margin:8px 0 20px;border-radius:24px}.sn-hero__figure{order:-1}.sn-hero__figure 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img,.sn-card__figure--empty{width:92px;aspect-ratio:4/3;border-radius:var(--sn-r-thumb)}.sn-card__body{padding:0;gap:5px}.sn-card .sn-chip{display:none}.sn-card__title{font-family:var(--sn-font-body);font-size:14px;font-weight:500;line-height:1.3;flex:none}.sn-card__meta{font-size:11px}.sn-card__meta .sn-card__cat{display:inline}.sn-card__meta .sn-card__author{display:none}.sn-pagination{margin-top:16px}.sn-band{border-radius:24px;padding:26px 22px;margin:0 0 20px}.sn-band__title{font-size:22px;line-height:1.2;margin-bottom:10px}.sn-band__text{font-size:14px;margin-bottom:16px}.sn-band--next{padding:24px 22px;gap:16px}.sn-band--next p{font-size:18px}.sn-footer{padding:16px;flex-direction:column;align-items:flex-start;gap:8px;font-size:12px}.sn-footer__links{gap:16px;font-size:12px}.sn-footer__brand{display:none}.sn-article-header{padding:24px 0 20px}.sn-article-title{font-size:30px}.sn-article{grid-template-columns:1fr;gap:28px;padding:0 0 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