@font-face{font-family:Poppins;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/poppins-latin-400-normal-cpxAROuN.woff2)format("woff2"),url(/assets/poppins-latin-400-normal-BOb3E3N0.woff)format("woff")}@font-face{font-family:Poppins;font-style:normal;font-display:swap;font-weight:500;src:url(/assets/poppins-latin-500-normal-C8OXljZJ.woff2)format("woff2"),url(/assets/poppins-latin-500-normal-DGXqpDMm.woff)format("woff")}@font-face{font-family:Poppins;font-style:normal;font-display:swap;font-weight:600;src:url(/assets/poppins-latin-600-normal-zEkxB9Mr.woff2)format("woff2"),url(/assets/poppins-latin-600-normal-BJdTmd5m.woff)format("woff")}@font-face{font-family:Poppins;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/poppins-latin-700-normal-Qrb0O0WB.woff2)format("woff2"),url(/assets/poppins-latin-700-normal-BVuQR_eA.woff)format("woff")}:root{--font:Poppins, Helvetica, Arial, Lucida, sans-serif;--primary-rgb:249, 182, 4;--primary-light-rgb:0, 190, 255;--primary:rgb(var(--primary-rgb));--primary-light:rgb(var(--primary-light-rgb));--electric:#02bafd;--mandarin:#f9b602;--white:#fff;--r-md:12px;--r-lg:18px;--r-pill:999px;--fast:.14s cubic-bezier(.22, .61, .36, 1);--slow:.26s cubic-bezier(.22, .61, .36, 1)}:root,:root[data-theme=dark]{--bg:#000;--panel:#000;--panel-2:#000;--hover:#1d1d23;--line-soft:#ffffff14;--line:#ffffff24;--line-strong:#ffffff3d;--text:#fff;--text-2:#fff;--muted:#fff;--shadow-sm:0 1px 2px #0009;--shadow-md:0 10px 30px #000000b3;--mascot-pad:radial-gradient(circle at 50% 42%, #1e1e26 0%, #0d0d11 72%);--warn-soft:#f9b60229;--warn-ink:#f9c94a;--shadow-glow:0 0 0 1px #02bafd59, 0 12px 32px #02bafd24;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}:root[data-theme=light]{--bg:#fff;--panel:#fff;--panel-2:#fff;--hover:#eef2f5;--line-soft:#00000012;--line:#00000024;--line-strong:#0000003d;--text:#000;--text-2:#000;--muted:#000;--shadow-sm:0 1px 2px #0a0e1414;--shadow-md:0 12px 32px #0a0e141f;--mascot-pad:radial-gradient(circle at 50% 42%, #fff 0%, #eef2f6 74%);--warn-soft:#f9b6022e;--warn-ink:#8a6400;--shadow-glow:0 0 0 1px #02bafd73, 0 12px 30px #02bafd2e;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text)}button,input,textarea,select{font-family:inherit}.chat-root{background:var(--bg);flex-direction:column;height:100%;display:flex}.chat-messages{flex-direction:column;flex:1;gap:16px;padding:10px 16px 16px;display:flex;overflow-y:auto}.chat-messages::-webkit-scrollbar{width:5px}.chat-messages::-webkit-scrollbar-track{background:0 0}.chat-messages::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:3px}.bot-group{flex-direction:column;align-items:flex-start;gap:6px;animation:.25s fadeUp;display:flex}.bot-avatar{object-fit:contain;flex-shrink:0;width:46px;height:46px;margin-left:4px}.bot-bubble{background:var(--primary-light);color:#000;border-radius:20px;width:fit-content;max-width:70%;padding:14px 20px;font-size:14px;line-height:1.65}.user-row{justify-content:flex-end;animation:.25s fadeUp;display:flex}.user-bubble{background:var(--mandarin);color:#000;border:none;border-radius:20px;width:fit-content;max-width:70%;padding:12px 20px;font-size:14px;line-height:1.6}.suggestions-group{flex-direction:column;align-items:flex-end;gap:10px;margin-top:8px;animation:.3s fadeUp;display:flex}.suggestion-chip{background:var(--mandarin);color:#000;width:fit-content;max-width:70%;font-size:14px;font-family:var(--font);text-align:left;cursor:pointer;transition:background var(--fast), transform var(--fast);border:none;border-radius:20px;padding:12px 20px;font-weight:400;line-height:1.6}.suggestion-chip:hover{background:#ffc21f;transform:translateY(-1px)}.typing-bubble{align-items:center;gap:5px;padding:14px 20px;display:flex}.typing-bubble span{background:#00000059;border-radius:50%;width:9px;height:9px;animation:1.2s infinite bounce}.typing-bubble span:nth-child(2){animation-delay:.2s}.typing-bubble span:nth-child(3){animation-delay:.4s}.chat-footer{background:var(--bg);flex-shrink:0;padding:8px 16px 16px}.input-row{border:1px solid var(--line-strong);background:var(--bg);max-width:980px;transition:border-color var(--fast);border-radius:30px;align-items:center;gap:8px;margin:0 auto;padding:6px 6px 6px 22px;display:flex}.input-row:focus-within{border-color:var(--electric)}.chat-input{min-width:0;font-family:var(--font);color:var(--text);background:0 0;border:none;outline:none;flex:1;height:44px;padding:0;font-size:15px;line-height:1.5}.chat-input::placeholder{color:var(--text);opacity:.5}.send-btn{background:var(--electric);color:#00171f;cursor:pointer;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;transition:background .15s,transform .1s;display:flex}.send-btn:hover{background:#0198d4}.send-btn:active{transform:scale(.92)}.send-btn:disabled{background:var(--hover);color:var(--text);cursor:default;transform:none}.send-btn:disabled svg{opacity:.4}@keyframes fadeUp{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-6px)}}.bot-content p{margin:.4em 0;line-height:1.6}.bot-content p:first-child{margin-top:0}.bot-content p:last-child{margin-bottom:0}.bot-content ul,.bot-content ol{margin:.4em 0;padding-left:1.4em}.bot-content li{margin:.15em 0}.bot-content h1,.bot-content h2,.bot-content h3{margin:.9em 0 .35em;line-height:1.3}.bot-content h1:first-child,.bot-content h2:first-child,.bot-content h3:first-child{margin-top:0}.bot-table{margin:.7em 0;overflow-x:auto}.bot-table table{border-collapse:collapse;width:100%;font-size:.92em}.bot-table th,.bot-table td{border:1px solid color-mix(in srgb, currentColor 30%, transparent);text-align:left;vertical-align:top;padding:7px 12px}.bot-table th{background:color-mix(in srgb, currentColor 10%, transparent);font-weight:700}.bot-content hr{border:0;border-top:1px solid #0000001a;margin:.8em 0}.bot-content .equation,.bot-content .equation-inline{font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace}.bot-content p:has(>code:only-child){font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace}.bot-content .equation{background:#0000000a;border-radius:6px;margin:.5em 0;padding:6px 10px;display:inline-block}.bot-avatar{object-fit:contain;z-index:1;flex-shrink:0;width:100px;height:100px;position:relative}.bot-bubble{background:var(--primary-light);color:#000;border-radius:20px;flex:1;padding:18px 24px;font-size:14px;font-weight:400;line-height:1.6}.bot-images{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.bot-image{background:#fff;border:1px solid #e0e0e0;border-radius:8px;max-width:280px;margin:0;overflow:hidden}.bot-image img{width:100%;height:auto;display:block}.bot-image figcaption{color:#666;background:#f7f7f7;padding:6px 10px;font-size:11px}.source-chips{border-top:1px solid #0000000f;flex-wrap:wrap;gap:6px;margin-top:10px;padding-top:10px;display:flex}.source-chip{color:#555;white-space:nowrap;background:#f4f4f4;border:1px solid #0000;border-radius:999px;padding:3px 9px;font-size:11px}.source-book{color:#2563a8;background:#eaf3ff}.source-mcq{color:#4d7e2c;background:#ecf6e3}.source-theory{color:#a55a25;background:#fbece0}.chat-footer{padding-bottom:calc(16px + env(safe-area-inset-bottom))}.bot-bubble{font-size:14px}@media (width<=550px){.suggestion-chip{max-width:100%;padding:10px;font-size:12px}.bot-bubble,.user-bubble{padding:10px;font-size:12px;max-width:100%!important}}div+em{text-align:center;color:var(--muted);margin:-6px 0 14px;font-size:.85em;display:block}.typing-status{opacity:.7;margin:4px 0 0 6px;font-size:13px}.chat-layout{flex:1;min-height:0;display:flex}.chat-layout .chat-root{flex:1;min-width:0}.chat-sidebar{background:var(--panel);border-right:1px solid var(--line-soft);width:310px;font-family:var(--font);flex-direction:column;flex-shrink:0;padding:10px 8px 0;display:flex}.chat-sidebar.is-collapsed{align-items:center;gap:4px;width:60px}.sidebar-top{align-items:center;gap:6px;padding:0 2px 12px 4px;display:flex}.sidebar-icon-btn{width:38px;height:38px;color:var(--text);cursor:pointer;opacity:.8;transition:background var(--fast), opacity var(--fast);background:0 0;border:none;border-radius:10px;place-items:center;display:grid}.sidebar-icon-btn:hover:not(:disabled),.sidebar-icon-btn.is-active{background:var(--hover);opacity:1}.sidebar-search{border:1px solid var(--line);background:var(--bg);min-width:0;height:40px;color:var(--text);cursor:text;transition:border-color var(--fast);border-radius:10px;flex:1;align-items:center;gap:10px;padding:0 12px;display:flex}.sidebar-search:hover{border-color:var(--line-strong)}.sidebar-search.is-active{border-color:var(--electric)}.sidebar-search svg{opacity:.6;flex:none}.sidebar-search input{min-width:0;color:var(--text);font-family:var(--font);background:0 0;border:none;outline:none;flex:1;font-size:14px}.sidebar-search input::placeholder{color:var(--text);opacity:.5}.sidebar-nav{flex-direction:column;gap:2px;padding-bottom:14px;display:flex}.sidebar-row{width:100%;color:var(--text);font-family:var(--font);text-align:left;cursor:pointer;transition:background var(--fast);background:0 0;border:none;border-radius:10px;align-items:center;gap:12px;padding:9px 12px;font-size:15px;text-decoration:none;display:flex}.sidebar-row:hover:not(:disabled){background:var(--hover)}.sidebar-row svg{opacity:.85;flex:none}.sidebar-heading{color:var(--text);opacity:.55;padding:6px 12px;font-size:14px;font-weight:500}.thread-list{scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent;flex-direction:column;flex:1;gap:1px;min-height:0;padding-bottom:16px;display:flex;overflow-y:auto}.thread-list::-webkit-scrollbar{width:6px}.thread-list::-webkit-scrollbar-track{background:0 0}.thread-list::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:3px}.thread-item{width:100%;color:var(--text);font-family:var(--font);text-align:left;white-space:nowrap;text-overflow:ellipsis;cursor:pointer;transition:background var(--fast);background:0 0;border:none;border-radius:10px;flex:none;padding:8px 12px;font-size:14px;display:block;overflow:hidden}.thread-item:hover:not(:disabled){background:var(--hover)}.thread-item.is-active{background:var(--hover);font-weight:500}.sidebar-row:disabled,.sidebar-icon-btn:disabled,.thread-item:disabled{opacity:.5;cursor:default}.sidebar-note{color:var(--muted);opacity:.7;padding:8px 12px;font-size:13px;line-height:1.5}.sidebar-link{color:var(--electric);font-family:var(--font);cursor:pointer;background:0 0;border:none;align-self:flex-start;padding:8px 12px;font-size:13px;font-weight:600}.sidebar-toggle{color:var(--text);cursor:pointer;background:0 0;border:none;padding:6px;font-size:22px;display:none}.sidebar-backdrop{display:none}@media (width<=768px){.sidebar-toggle{display:block}.chat-sidebar{z-index:20;width:80%;max-width:300px;transition:transform .25s;position:fixed;top:0;bottom:0;left:0;transform:translate(-100%)}.chat-sidebar.is-open{transform:translate(0)}.sidebar-backdrop{z-index:10;background:#00000059;display:block;position:fixed;inset:0}}.book-extras{margin-top:10px}.bot-image a{display:block}.bot-image-loading{color:#888;text-align:center;padding:30px 16px;font-size:12px}.source-chips{border-top-color:#0000001f;align-items:center}.source-label{color:#0009;font-size:11px;font-weight:600}.book-extras .bot-image{width:140px}.book-extras .bot-image img{object-fit:contain;background:var(--white);cursor:zoom-in;height:110px}.app-page{flex-direction:column;height:100vh;display:flex}.topbar{z-index:15;background:var(--bg);border-bottom:1px solid var(--line-soft);flex-shrink:0;position:sticky;top:0}.topbar-inner{align-items:center;gap:20px;max-width:1280px;height:62px;margin:0 auto;padding:0 24px;display:flex}.topbar-logo img{width:auto;height:48px;display:block}img.logo-light{display:none}:root[data-theme=light] img.logo-light{display:block}:root[data-theme=light] img.logo-dark{display:none}.topbar-product{flex-direction:column;line-height:1.2;display:flex}.topbar-product .name{letter-spacing:.01em;white-space:nowrap;font-size:1.05rem;font-weight:600}.topbar-product .name em{color:var(--electric);font-style:normal}.topbar-product .tagline{letter-spacing:.13em;text-transform:uppercase;color:var(--muted);font-size:.72rem;font-weight:500}.topbar-spacer{flex:1}.theme-toggle{--toggle-bg:#f4f6f8;--toggle-active:#fff;--toggle-active-shadow:0 1px 3px #0000001f, 0 1px 2px #0000000f;--toggle-icon:#a3abb6;--toggle-icon-active:#000;border-radius:var(--r-pill);background:var(--toggle-bg);flex:none;align-items:center;gap:4px;padding:4px;display:inline-flex}:root:not([data-theme=light]) .theme-toggle{--toggle-bg:#161616;--toggle-active:#303030;--toggle-active-shadow:none;--toggle-icon:#8c8c8c;--toggle-icon-active:#fff}.theme-toggle button{border-radius:var(--r-pill);width:46px;height:34px;color:var(--toggle-icon);cursor:pointer;transition:background var(--fast), color var(--fast);background:0 0;border:none;justify-content:center;align-items:center;padding:0;display:inline-flex}.theme-toggle button:hover{color:var(--toggle-icon-active)}.theme-toggle button[aria-pressed=true]{background:var(--toggle-active);color:var(--toggle-icon-active);box-shadow:var(--toggle-active-shadow)}.theme-toggle button:focus-visible{outline:2px solid var(--electric);outline-offset:2px}@media (width<=720px){.theme-toggle{gap:2px;padding:3px}.theme-toggle button{width:36px;height:28px}.theme-toggle svg{width:17px;height:17px}.topbar-inner{gap:12px;height:58px;padding:0 16px}.topbar-logo img{height:44px}.topbar-product{display:none}}@media (width<=420px){.topbar-inner{gap:10px}.topbar-logo img{height:42px}}.home{max-width:1280px;margin:0 auto;padding:40px 24px 64px}.home-greeting{background:var(--electric);color:#00171f;border-radius:22px 22px 22px 6px;width:fit-content;max-width:720px;margin:0 auto 28px;padding:16px 24px;font-size:1.02rem;font-weight:400;line-height:1.6;animation:.4s both greetingIn;position:relative;box-shadow:0 8px 24px #02bafd40}.home-greeting-full{visibility:hidden}.home-greeting-typed{position:absolute;inset:16px 24px}.typing-caret{vertical-align:text-bottom;background:currentColor;width:2px;height:1.1em;margin-left:2px;margin-right:-4px;animation:.9s step-end infinite caretBlink;display:inline-block}@keyframes caretBlink{50%{opacity:0}}@keyframes greetingIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.home-greeting,.typing-caret{animation:none}}@media (width<=600px){.home{padding:28px 16px 48px}.home-greeting{padding:14px 18px;font-size:.92rem}.home-greeting-typed{inset:14px 18px}}@media (width<=380px){.sidebar-toggle{padding:2px;font-size:20px}}.launcher{max-width:1080px;margin:0 auto}.launcher .step{margin-top:36px}.step-label{align-items:center;gap:12px;margin-bottom:16px;display:flex}.step-number{background:var(--mandarin);color:#000;border-radius:50%;flex:none;justify-content:center;align-items:center;width:26px;height:26px;font-size:.8rem;font-weight:700;display:inline-flex}.step-label h2{font-size:1.05rem;font-weight:600}.subject-grid{flex-wrap:wrap;justify-content:center;gap:14px;display:flex}.subject-grid>.subject-card{flex:0 calc(20% - 12px);min-width:0;max-width:calc(20% - 12px)}.subject-card{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg);color:var(--text);font-family:var(--font);text-align:center;cursor:pointer;transition:border-color var(--fast), transform var(--fast);flex-direction:column;align-items:center;gap:10px;padding:22px 12px 18px;display:flex;position:relative}.subject-card:hover:not(:disabled){border-color:var(--accent);transform:translateY(-3px)}.subject-card.is-active{border:2px solid var(--accent);padding:21px 11px 17px}.subject-card.is-locked{cursor:not-allowed}.subject-mascot{background:color-mix(in srgb, var(--accent) 16%, transparent);width:96px;height:96px;transition:transform var(--slow);border-radius:50%;place-items:center;display:grid}.subject-card:hover:not(:disabled) .subject-mascot{transform:scale(1.06)}.subject-mascot img{object-fit:contain;width:84%;height:84%}.subject-name{font-size:1rem;font-weight:600}.tag{border-radius:var(--r-pill);letter-spacing:.06em;text-transform:uppercase;padding:3px 10px;font-size:.7rem;font-weight:600;display:inline-block}.tag-build{background:var(--warn-soft);color:var(--warn-ink)}.tag-ready{background:color-mix(in srgb, var(--accent) 18%, transparent);color:var(--text)}.chip-row{flex-wrap:wrap;gap:10px;display:flex}.chip{border:1px solid var(--line);border-radius:var(--r-pill);background:var(--bg);height:46px;color:var(--text);font-family:var(--font);cursor:pointer;transition:border-color var(--fast), background var(--fast);align-items:center;gap:10px;padding:0 22px;font-size:.92rem;font-weight:500;display:inline-flex}.chip:hover:not(:disabled){border-color:var(--electric)}.chip.is-active{background:var(--electric);border-color:var(--electric);color:#000;font-weight:600}.chip.is-locked{cursor:not-allowed}.chip-note{border-radius:var(--r-pill);background:var(--warn-soft);color:var(--warn-ink);letter-spacing:.06em;text-transform:uppercase;padding:2px 8px;font-size:.66rem;font-weight:600}.tag-enrolled{background:var(--electric);color:#000}.tag-not-enrolled{background:color-mix(in srgb, var(--text) 12%, transparent);color:var(--text)}.subject-card.is-not-enrolled .subject-mascot{filter:grayscale();opacity:.55}.subject-card.is-not-enrolled .subject-name{opacity:.55}.chip-enrolled{border-radius:var(--r-pill);background:color-mix(in srgb, var(--electric) 20%, transparent);color:var(--text);letter-spacing:.06em;text-transform:uppercase;padding:2px 8px;font-size:.66rem;font-weight:600}.chip.is-active .chip-enrolled{color:#000;background:#00000024}.book-grid{flex-wrap:wrap;gap:16px;display:flex}.book-pick{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg);color:var(--text);font-family:var(--font);text-align:left;cursor:pointer;transition:border-color var(--fast);flex:0 460px;align-items:center;gap:22px;padding:18px 22px 18px 18px;animation:.25s fadeUp;display:flex}.book-pick:hover{border-color:var(--electric)}.book-pick-cover{aspect-ratio:1100/1418;background:var(--hover);width:120px;transition:transform var(--slow);border-radius:4px 8px 8px 4px;flex:none;display:block;overflow:hidden;box-shadow:0 6px 16px #00000047}.book-pick-cover img{object-fit:cover;width:100%;height:100%;display:block}.book-pick-blank{text-align:center;place-items:center;height:100%;padding:10px;font-size:.8rem;font-weight:600;display:grid}.book-pick-body{flex-direction:column;flex:1;align-items:flex-start;gap:4px;min-width:0;display:flex}.book-pick-meta{letter-spacing:.04em;text-transform:uppercase;opacity:.55;font-size:.78rem;font-weight:500}.book-pick-title{font-size:1.15rem;font-weight:600;line-height:1.3}.book-pick-go{border-radius:var(--r-pill);background:var(--electric);color:#000;transition:background var(--fast);margin-top:14px;padding:9px 20px;font-size:.88rem;font-weight:600}.book-pick:hover .book-pick-go{background:#0198d4}.start-btn{border-radius:var(--r-pill);background:var(--electric);color:#000;font-family:var(--font);cursor:pointer;border:none;padding:12px 26px;font-size:.95rem;font-weight:600}.home-error{text-align:center;flex-direction:column;align-items:center;gap:14px;padding:40px 0;display:flex}@media (width<=1000px){.subject-grid>.subject-card{flex-basis:calc(33.333% - 10px);max-width:calc(33.333% - 10px)}}@media (width<=600px){.subject-grid{gap:10px}.subject-grid>.subject-card{flex-basis:calc(50% - 5px);max-width:calc(50% - 5px)}.subject-mascot{width:80px;height:80px}.book-pick{flex-basis:100%;gap:16px;padding:14px}.book-pick-cover{width:92px}.book-pick-title{font-size:1rem}.book-pick-go{margin-top:10px;padding:8px 16px}}.app-page .topbar-inner{max-width:none;padding:0 20px}@media (width<=768px){.chat-sidebar{width:85%;max-width:320px}.app-page .topbar-inner{grid-template-columns:40px 1fr 40px;gap:8px;height:54px;padding:0 10px;display:grid}.app-page .topbar-logo{justify-self:center}.app-page .topbar-logo img{height:38px}.app-page .topbar-product,.app-page .topbar-spacer{display:none}.app-page .sidebar-toggle{place-items:center;width:40px;height:40px;padding:0;display:grid}.app-page .theme-toggle{background:0 0;padding:0}.app-page .theme-toggle button[aria-pressed=true]{display:none}.app-page .theme-toggle button{width:40px;height:40px;color:var(--text)}.app-page .theme-toggle svg{width:20px;height:20px}.chat-footer{padding:6px 10px calc(10px + env(safe-area-inset-bottom))}.input-row{border-radius:26px;gap:6px;padding:4px 4px 4px 16px}.chat-input{height:40px;font-size:16px}.chat-input::placeholder{font-size:15px}.send-btn{width:38px;height:38px}.send-btn svg{width:19px;height:19px}}.sidebar-brand{display:none}@media (width<=768px){.sidebar-brand{padding:6px 8px 16px;line-height:0;display:block}.sidebar-brand img{width:auto;height:40px}.app-page .topbar-logo{display:none}.app-page .topbar-product{justify-self:start;display:flex}.app-page .topbar-product .name{font-size:1.1rem}.app-page .topbar-product .tagline{display:none}}@media (width<=500px){.chip-row{gap:8px}.chip{gap:8px;height:38px;padding:0 15px;font-size:.84rem}.chip-note{padding:2px 6px;font-size:.6rem}}.chip{height:40px;padding:0 18px;font-weight:400}.chip.is-active{font-weight:500}@media (width<=500px){.chip{height:34px;padding:0 14px}}.book-pick-title,.book-pick-go{font-weight:500}.subject-card,.book-pick{border-radius:12px}.chip{border-radius:10px}.book-pick-go{border-radius:8px}.book-pick{align-items:stretch}.book-pick-body{padding:4px 0}.book-pick-go,.book-pick-meta{margin-top:auto}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2)format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff)format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff)format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff)format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2)format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff)format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2)format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff)format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2)format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff)format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2)format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff)format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2)format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff)format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2)format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff)format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff)format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff)format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff)format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2)format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff)format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2)format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff)format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2)format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff)format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff)format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2)format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff)format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2)format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff)format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.16.45"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.newline{display:block}.katex .base{white-space:nowrap;width:min-content;position:relative}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{flex-direction:row;display:inline-flex}.katex .thinbox{width:0;max-width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}
