:root{--el-color-primary: #0A2F5C;--el-color-warning: #F36C21;--el-color-success: #28a745;--el-color-danger: #dc3545;--el-color-info: #1a6fa0;--color-primary: #0A2F5C;--color-primary-dark: #051E3E;--color-primary-light: #1a6fa0;--color-r-blue: #0A2F5C;--color-accent: #0A2F5C;--color-accent-light: #1a6fa0;--color-accent-faint: rgba(10, 47, 92, .07);--color-accent-glow: rgba(10, 47, 92, .18);--color-success: #28a745;--color-error: #dc3545;--color-warning: #F36C21;--color-info: #1a6fa0;--bg-main: #f8f9fb;--bg-sidebar: #f1f3f8;--bg-canvas: #ffffff;--color-bg-primary: #ffffff;--color-bg-secondary: #f1f3f8;--color-bg-overlay: rgba(17, 24, 39, .45);--el-text-color-primary: #111827;--el-text-color-regular: #4b5563;--el-text-color-secondary: #9ca3b0;--color-gray-50: #f8f9fb;--color-gray-100: #eef1f6;--color-gray-200: #e2e7ef;--color-gray-300: #cdd4de;--color-gray-400: #9ca3b0;--color-gray-500: #6b7280;--color-gray-600: #4b5563;--color-gray-700: #374151;--color-gray-800: #1f2937;--color-gray-900: #111827;--color-on-dark: rgba(255, 255, 255, .75);--color-on-dark-muted: rgba(255, 255, 255, .5);--color-on-dark-subtle: rgba(255, 255, 255, .25);--color-on-dark-solid: #ffffff;--el-border-color: #e2e7ef;--font-family-base: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-family-mono: "JetBrains Mono", "SF Mono", "Fira Code", "Consolas", monospace;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 2.75rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.2;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--letter-spacing-tight: -.025em;--letter-spacing-normal: 0;--letter-spacing-wide: .025em;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4rem;--spacing-4xl: 6rem;--border-width-thin: 1px;--border-width-medium: 2px;--border-width-thick: 3px;--border-radius-sm: 6px;--border-radius-md: 10px;--border-radius-lg: 14px;--border-radius-xl: 20px;--border-radius-2xl: 28px;--border-radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .03), 0 2px 6px rgba(0, 0, 0, .04);--shadow-md: 0 2px 4px rgba(0, 0, 0, .02), 0 6px 20px rgba(0, 0, 0, .06);--shadow-lg: 0 4px 8px rgba(0, 0, 0, .02), 0 16px 40px rgba(0, 0, 0, .08);--shadow-xl: 0 8px 16px rgba(0, 0, 0, .03), 0 24px 56px rgba(0, 0, 0, .1);--shadow-accent: 0 8px 24px var(--color-accent-glow);--transition-fast: .15s ease;--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1);--transition-spring: .5s cubic-bezier(.175, .885, .32, 1.275);--z-index-sticky: 100;--z-index-dropdown: 1000;--z-index-modal: 2000;--z-index-tooltip: 3000;--max-width-container: 1200px;--max-width-narrow: 680px;--header-height: 64px}*,*:before,*:after{box-sizing:border-box}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{margin:0;font-family:var(--font-family-base);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--el-text-color-primary);background-color:var(--bg-main)}a{color:inherit;text-decoration:none}img,svg{display:block;max-width:100%}.app-layout{display:flex;flex-direction:column;min-height:100vh}.app-layout--history{height:100vh;overflow:hidden}.app-header{position:sticky;top:0;z-index:var(--z-index-sticky);height:var(--header-height);background:#ffffffd1;backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);border-bottom:var(--border-width-thin) solid rgba(226,231,239,.6)}.app-header__container{max-width:var(--max-width-container);height:100%;margin:0 auto;padding:0 var(--spacing-xl);display:flex;align-items:center;justify-content:space-between}.app-header__title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-primary);letter-spacing:var(--letter-spacing-tight);margin:0}.app-header__title--link{text-decoration:none;display:flex;align-items:center;gap:var(--spacing-sm);transition:opacity var(--transition-fast)}.app-header__title--link:before{content:"";display:inline-block;width:8px;height:8px;border-radius:var(--border-radius-full);background:var(--color-accent);flex-shrink:0}.app-header__title--link:hover{opacity:.8}.app-header__nav{display:flex;align-items:center;gap:var(--spacing-xs)}.app-header__link{font-size:var(--font-size-sm);color:var(--color-gray-500);font-weight:var(--font-weight-medium);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--border-radius-full);transition:color var(--transition-fast),background-color var(--transition-fast);text-decoration:none}.app-header__link:hover{color:var(--color-primary);background-color:var(--color-gray-100)}.app-header__link--active{color:var(--color-accent);background-color:var(--color-accent-faint)}.app-main{flex:1;min-height:0}.app-main--full{padding:0;display:flex;flex-direction:column;min-height:0;overflow:hidden}.app-main--full .history-app{flex:1;min-height:0;overflow:hidden}.site-footer{background-color:var(--color-primary-dark);color:var(--color-on-dark);padding:var(--spacing-lg) var(--spacing-xl);margin-top:auto}.site-footer__container{max-width:var(--max-width-container);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md)}.site-footer__links{display:flex;align-items:center;gap:var(--spacing-xl)}.site-footer__item{display:flex;align-items:center;gap:var(--spacing-sm);font-size:var(--font-size-sm)}.site-footer__label{color:var(--color-on-dark-muted)}.site-footer__link{color:var(--color-primary-light);font-weight:var(--font-weight-medium);transition:color var(--transition-fast)}.site-footer__link:hover{color:var(--color-on-dark-solid)}.site-footer__divider{width:1px;height:.875rem;background-color:var(--color-on-dark-subtle)}.site-footer__copyright{font-size:var(--font-size-xs);color:var(--color-on-dark-muted);margin:0}@media(max-width:768px){.app-header__container{padding:0 var(--spacing-md)}.site-footer__container{flex-direction:column;text-align:center}.site-footer__links{flex-direction:column;gap:var(--spacing-sm)}.site-footer__divider{display:none}}.home{position:relative;min-height:calc(100vh - var(--header-height) - 72px);padding:var(--spacing-3xl) var(--spacing-xl) var(--spacing-4xl);background:radial-gradient(ellipse 80% 50% at 50% -20%,var(--color-accent-faint),transparent),radial-gradient(ellipse 60% 40% at 100% 100%,rgba(26,111,160,.05),transparent),var(--bg-main);overflow:hidden}.home:before{content:"";position:absolute;inset:0;background-image:radial-gradient(var(--color-gray-200) 1px,transparent 1px);background-size:24px 24px;opacity:.35;pointer-events:none;mask-image:linear-gradient(to bottom,black 0%,transparent 70%);-webkit-mask-image:linear-gradient(to bottom,black 0%,transparent 70%)}.home__container{position:relative;z-index:1;max-width:var(--max-width-container);margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:var(--spacing-3xl)}.home-hero{text-align:center;max-width:36rem}.home-hero__badge{display:inline-block;padding:var(--spacing-xs) var(--spacing-md);margin-bottom:var(--spacing-lg);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);letter-spacing:var(--letter-spacing-wide);text-transform:uppercase;color:var(--color-primary);background:var(--color-bg-primary);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-full);box-shadow:var(--shadow-sm)}.home-hero__title{font-size:clamp(2rem,5vw,var(--font-size-4xl));font-weight:var(--font-weight-bold);color:var(--color-primary);letter-spacing:var(--letter-spacing-tight);margin:0 0 var(--spacing-md) 0;line-height:var(--line-height-tight)}.home-hero__subtitle{font-size:var(--font-size-lg);color:var(--color-gray-500);font-weight:var(--font-weight-normal);margin:0;line-height:var(--line-height-relaxed);letter-spacing:var(--letter-spacing-wide)}.home-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-lg);width:100%}.home-card{--home-card-accent: var(--color-primary);--home-card-accent-light: var(--color-primary-light);--home-card-accent-faint: var(--color-accent-faint);--home-card-accent-glow: var(--color-accent-glow);position:relative;background:var(--color-bg-primary);border-radius:var(--border-radius-xl);padding:var(--spacing-xl);text-decoration:none;color:inherit;display:flex;flex-direction:column;align-items:flex-start;min-height:220px;box-shadow:var(--shadow-md);border:var(--border-width-thin) solid var(--color-gray-200);transition:transform var(--transition-base),box-shadow var(--transition-base),border-color var(--transition-base);overflow:hidden}.home-card:before{content:"";position:absolute;top:0;left:0;right:0;height:var(--border-width-thick);background:var(--home-card-accent);border-radius:var(--border-radius-xl) var(--border-radius-xl) 0 0;opacity:0;transition:opacity var(--transition-base)}.home-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg),0 8px 24px var(--home-card-accent-glow);border-color:var(--home-card-accent-light)}.home-card:hover:before{opacity:1}.home-card:focus-visible{outline:var(--border-width-medium) solid var(--home-card-accent);outline-offset:2px}.home-card--knowledge{--home-card-accent: var(--color-primary);--home-card-accent-light: var(--color-primary-light);--home-card-accent-faint: var(--color-accent-faint);--home-card-accent-glow: var(--color-accent-glow)}.home-card--history{--home-card-accent: var(--color-warning);--home-card-accent-light: #f5894a;--home-card-accent-faint: rgba(243, 108, 33, .08);--home-card-accent-glow: rgba(243, 108, 33, .18)}.home-card--reading{--home-card-accent: var(--color-info);--home-card-accent-light: #3d8fc4;--home-card-accent-faint: rgba(26, 111, 160, .08);--home-card-accent-glow: rgba(26, 111, 160, .18)}.home-card__icon{display:flex;align-items:center;justify-content:center;width:3rem;height:3rem;margin-bottom:var(--spacing-lg);color:var(--home-card-accent);background:var(--home-card-accent-faint);border-radius:var(--border-radius-lg);transition:background-color var(--transition-base),color var(--transition-base)}.home-card__icon svg{width:1.5rem;height:1.5rem}.home-card:hover .home-card__icon{background:var(--home-card-accent);color:var(--color-on-dark-solid)}.home-card__title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-primary);margin:0 0 var(--spacing-sm) 0}.home-card__desc{font-size:var(--font-size-sm);color:var(--color-gray-500);line-height:var(--line-height-relaxed);margin:0;flex:1}.home-card__cta{display:inline-flex;align-items:center;gap:var(--spacing-xs);margin-top:var(--spacing-lg);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--home-card-accent);transition:gap var(--transition-fast)}.home-card__cta:after{content:"→";transition:transform var(--transition-fast)}.home-card:hover .home-card__cta:after{transform:translate(3px)}@media(max-width:960px){.home-nav{grid-template-columns:1fr;max-width:28rem}.home-card{min-height:auto}}@media(max-width:640px){.home{padding:var(--spacing-2xl) var(--spacing-md) var(--spacing-3xl)}.home__container{gap:var(--spacing-2xl)}.home-hero__subtitle{font-size:var(--font-size-base)}}.knowledge-page{min-height:calc(100vh - var(--header-height))}.knowledge-page__container{max-width:var(--max-width-container);margin:0 auto;padding:var(--spacing-2xl) var(--spacing-xl)}.knowledge-page--overview .knowledge-page__container{padding:var(--spacing-lg) var(--spacing-xl) var(--spacing-2xl)}.study-overview{margin-bottom:var(--spacing-lg)}.study-overview__head{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--spacing-lg);margin-bottom:var(--spacing-md)}.study-overview__title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-gray-900);letter-spacing:var(--letter-spacing-tight);margin:0 0 var(--spacing-xs) 0;line-height:var(--line-height-tight)}.study-overview__subtitle{font-size:var(--font-size-sm);color:var(--color-gray-500);margin:0;line-height:var(--line-height-normal)}.study-overview__stats{display:flex;gap:var(--spacing-md);margin:0;flex-shrink:0}.study-overview__stat{text-align:center;min-width:3.5rem;padding:var(--spacing-sm) var(--spacing-md);background:var(--color-bg-primary);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-md)}.study-overview__stat dt{font-size:var(--font-size-xs);color:var(--color-gray-400);font-weight:var(--font-weight-medium);margin:0 0 2px}.study-overview__stat dd{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-primary);margin:0;line-height:1}.knowledge-intro--collapsible{background:var(--color-bg-primary);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-md)}.knowledge-intro--collapsible .knowledge-intro__summary{padding:var(--spacing-sm) var(--spacing-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-gray-600);cursor:pointer;list-style:none;-webkit-user-select:none;user-select:none}.knowledge-intro--collapsible .knowledge-intro__summary::-webkit-details-marker{display:none}.knowledge-intro--collapsible .knowledge-intro__summary:before{content:"▸ ";color:var(--color-accent)}.knowledge-intro--collapsible[open] .knowledge-intro__summary:before{content:"▾ "}.knowledge-intro--collapsible .knowledge-intro__body{padding:0 var(--spacing-md) var(--spacing-md);border-top:var(--border-width-thin) solid var(--color-gray-100)}.knowledge-intro--collapsible .knowledge-intro__paragraph{font-size:var(--font-size-xs);color:var(--color-gray-500);line-height:var(--line-height-relaxed);margin:var(--spacing-sm) 0 0 0}.study-layers{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-md)}.study-layer-block{background:var(--color-bg-primary);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-lg);padding:var(--spacing-md);display:flex;flex-direction:column;box-shadow:var(--shadow-sm);transition:border-color var(--transition-base),box-shadow var(--transition-base)}.study-layer-block:hover{border-color:var(--color-accent-light);box-shadow:var(--shadow-md)}.study-layer-block__header{display:flex;align-items:center;gap:var(--spacing-sm);text-decoration:none;color:inherit;margin-bottom:var(--spacing-sm)}.study-layer-block__header:hover .study-layer-block__title{color:var(--color-accent)}.study-layer-block__index{display:inline-flex;align-items:center;justify-content:center;width:1.75rem;height:1.75rem;flex-shrink:0;background:var(--color-accent);color:var(--color-on-dark-solid);font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);border-radius:var(--border-radius-sm)}.study-layer-block__titles{flex:1;min-width:0}.study-layer-block__title{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-gray-900);margin:0;line-height:var(--line-height-tight);transition:color var(--transition-fast)}.study-layer-block__title-en{display:block;font-size:var(--font-size-xs);color:var(--color-gray-400);margin-top:1px}.study-layer-block__arrow{flex-shrink:0;color:var(--color-gray-300);font-size:var(--font-size-lg);transition:color var(--transition-fast),transform var(--transition-fast)}.study-layer-block__header:hover .study-layer-block__arrow{color:var(--color-accent);transform:translate(2px)}.study-layer-block__theme{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-accent);margin:0 0 var(--spacing-xs) 0;line-height:var(--line-height-normal)}.study-layer-block__truth{font-size:var(--font-size-xs);color:var(--color-gray-500);line-height:var(--line-height-relaxed);margin:0 0 var(--spacing-sm) 0;padding-bottom:var(--spacing-sm);border-bottom:var(--border-width-thin) solid var(--color-gray-100)}.study-layer-block__modules{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;flex:1}.study-module-chip{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius-sm);text-decoration:none;color:inherit;transition:background var(--transition-fast)}.study-module-chip:hover{background:var(--color-accent-faint)}.study-module-chip__code{display:inline-flex;align-items:center;justify-content:center;min-width:1.25rem;height:1.25rem;padding:0 3px;background:var(--color-gray-100);color:var(--color-primary);font-size:.65rem;font-weight:var(--font-weight-bold);border-radius:var(--border-radius-sm);flex-shrink:0}.study-module-chip:hover .study-module-chip__code{background:var(--color-accent);color:var(--color-on-dark-solid)}.study-module-chip__name{flex:1;min-width:0;font-size:var(--font-size-xs);color:var(--color-gray-700);line-height:var(--line-height-tight);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.study-module-chip__count{flex-shrink:0;font-size:.65rem;color:var(--color-gray-400);font-weight:var(--font-weight-medium)}.study-layer-block__footer{display:flex;gap:var(--spacing-md);margin-top:var(--spacing-sm);padding-top:var(--spacing-sm);border-top:var(--border-width-thin) solid var(--color-gray-100);font-size:var(--font-size-xs);color:var(--color-gray-400);font-weight:var(--font-weight-medium)}.knowledge-page--layer .knowledge-page__container{padding:var(--spacing-lg) var(--spacing-xl) var(--spacing-2xl)}.layer-breadcrumb{font-size:var(--font-size-xs);color:var(--color-gray-400);margin-bottom:var(--spacing-sm);display:flex;align-items:center;gap:var(--spacing-xs);flex-wrap:wrap}.layer-breadcrumb__link{color:var(--color-accent);text-decoration:none;font-weight:var(--font-weight-medium)}.layer-breadcrumb__link:hover{color:var(--color-primary)}.layer-breadcrumb__sep{color:var(--color-gray-300)}.layer-breadcrumb__current{color:var(--color-gray-600)}.layer-detail{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--spacing-lg);padding:var(--spacing-md) var(--spacing-lg);margin-bottom:var(--spacing-md);background:var(--color-bg-primary);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-sm)}.layer-detail__title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-gray-900);margin:0 0 var(--spacing-xs) 0;line-height:var(--line-height-tight)}.layer-detail__title-en{display:block;font-size:var(--font-size-xs);font-weight:var(--font-weight-normal);color:var(--color-gray-400);margin-top:2px}.layer-detail__theme{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-accent);margin:0 0 var(--spacing-xs) 0}.layer-detail__truth{font-size:var(--font-size-xs);color:var(--color-gray-500);line-height:var(--line-height-relaxed);margin:0}.layer-detail__stats{display:flex;gap:var(--spacing-sm);margin:0;flex-shrink:0}.layer-detail__stat{text-align:center;min-width:3rem;padding:var(--spacing-xs) var(--spacing-sm);background:var(--color-gray-50);border-radius:var(--border-radius-sm)}.layer-detail__stat dt{font-size:.65rem;color:var(--color-gray-400);margin:0}.layer-detail__stat dd{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-primary);margin:0;line-height:1.2}.layer-module-nav{display:flex;gap:var(--spacing-xs);overflow-x:auto;padding:var(--spacing-xs) 0 var(--spacing-md);margin-bottom:var(--spacing-sm);scrollbar-width:thin;position:sticky;top:var(--header-height);z-index:var(--z-index-sticky);background:var(--bg-main);border-bottom:var(--border-width-thin) solid var(--color-gray-200)}.layer-module-nav__chip{flex-shrink:0;display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-sm);background:var(--color-bg-primary);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-full);font-size:var(--font-size-xs);color:var(--color-gray-700);text-decoration:none;transition:border-color var(--transition-fast),background var(--transition-fast)}.layer-module-nav__chip:hover{border-color:var(--color-accent-light);background:var(--color-accent-faint);color:var(--color-primary)}.layer-module-nav__code{display:inline-flex;align-items:center;justify-content:center;min-width:1.125rem;height:1.125rem;padding:0 2px;background:var(--color-accent);color:var(--color-on-dark-solid);font-size:.6rem;font-weight:var(--font-weight-bold);border-radius:var(--border-radius-sm)}.layer-modules-compact{display:flex;flex-direction:column;gap:var(--spacing-md)}.layer-module-section{scroll-margin-top:calc(var(--header-height) + 48px);background:var(--color-bg-primary);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-lg);overflow:hidden}.layer-module-section__header{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:var(--color-gray-50);border-bottom:var(--border-width-thin) solid var(--color-gray-100)}.layer-module-section__title{font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-gray-900);margin:0;display:flex;align-items:center;gap:var(--spacing-sm);min-width:0}.layer-module-section__code{display:inline-flex;align-items:center;justify-content:center;min-width:1.375rem;height:1.375rem;padding:0 4px;background:var(--color-accent);color:var(--color-on-dark-solid);font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);border-radius:var(--border-radius-sm);flex-shrink:0}.layer-module-section__link{flex-shrink:0;font-size:var(--font-size-xs);color:var(--color-accent);text-decoration:none;font-weight:var(--font-weight-medium)}.layer-module-section__link:hover{color:var(--color-primary)}.layer-module-section__grid{display:grid;grid-template-columns:1fr 1fr;gap:0}.module-questions--compact,.module-books--compact{padding:var(--spacing-md);margin:0;border:none;border-radius:0;box-shadow:none;background:transparent}.module-questions--compact{border-right:var(--border-width-thin) solid var(--color-gray-100)}.module-questions--compact .module-questions__title,.module-books--compact .module-books__title{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);margin:0 0 var(--spacing-sm) 0;padding:0 0 var(--spacing-xs) 0;border-bottom:var(--border-width-thin) solid var(--color-gray-100);display:flex;align-items:center;gap:var(--spacing-xs)}.module-questions__count,.module-books__count{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-gray-400);background:var(--color-gray-100);padding:1px 6px;border-radius:var(--border-radius-full)}.question-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:var(--spacing-xs)}.question-list__item{display:flex;align-items:flex-start;gap:var(--spacing-sm);font-size:var(--font-size-xs);line-height:var(--line-height-relaxed);color:var(--color-gray-700)}.question-list__num{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;min-width:1.25rem;height:1.25rem;background:var(--color-gray-100);color:var(--color-primary);font-size:.65rem;font-weight:var(--font-weight-bold);border-radius:var(--border-radius-sm)}.question-list__text{flex:1;min-width:0}.books-grid{display:flex;flex-direction:column;gap:var(--spacing-xs)}.book-card{padding:var(--spacing-xs) var(--spacing-sm);background:var(--color-gray-50);border-radius:var(--border-radius-sm);border-left:2px solid var(--color-accent)}.book-card__title{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-gray-900);margin:0 0 2px;line-height:var(--line-height-tight)}.book-card__author{font-size:.65rem;color:var(--color-gray-500);margin:0 0 2px}.book-card__rec{font-size:.65rem;color:var(--color-accent);line-height:var(--line-height-relaxed);margin:0}.module-empty{font-size:var(--font-size-xs);color:var(--color-gray-400);margin:0;text-align:center;padding:var(--spacing-sm)}.module-empty--loading{padding:var(--spacing-md)}.study-graph{margin-top:var(--spacing-2xl)}.study-graph--row{display:flex;flex-wrap:nowrap;align-items:stretch;justify-content:center;gap:0 var(--spacing-md);overflow-x:auto;padding:var(--spacing-sm) 0}.study-graph--row .study-graph__node{flex:1 1 0;min-width:0}.study-graph__edge{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--color-gray-300);transition:color var(--transition-base)}.study-graph__edge--loop{color:var(--color-accent)}.study-graph__edge--loop .study-graph__arrow--loop path{stroke-dasharray:3 2}.study-graph__node:hover+.study-graph__edge,.study-graph__edge:hover{color:var(--color-accent)}.study-graph__arrow{width:24px;height:24px;display:block}@media(max-width:768px){.study-graph--row{flex-direction:column;flex-wrap:nowrap;overflow-x:visible}.study-graph--row .study-graph__node{flex:1 1 auto;min-width:0;width:100%}.study-graph__edge{transform:rotate(90deg);margin:var(--spacing-xs) 0}}.study-layer-card{background:var(--color-bg-primary);padding:var(--spacing-xl);border-radius:var(--border-radius-lg);border:var(--border-width-thin) solid var(--color-gray-200);box-shadow:var(--shadow-sm);transition:transform var(--transition-base),box-shadow var(--transition-base),border-color var(--transition-base);cursor:pointer;text-decoration:none;color:inherit;display:flex;flex-direction:column;position:relative;min-height:0}.study-layer-card:after{content:"";position:absolute;left:0;top:var(--spacing-lg);bottom:var(--spacing-lg);width:var(--border-width-thick);background:var(--color-accent);border-radius:0 var(--border-radius-sm) var(--border-radius-sm) 0;opacity:.5;transition:opacity var(--transition-base)}.study-layer-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md),var(--shadow-accent);border-color:var(--color-accent-light)}.study-layer-card:hover:after{opacity:1}.study-layer-card__header{margin-bottom:var(--spacing-sm)}.study-layer-card__title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-gray-900);margin:0;line-height:var(--line-height-tight)}.study-layer-card__title-en{font-size:var(--font-size-sm);color:var(--color-gray-400);margin-top:var(--spacing-xs)}.study-layer-card__theme{font-size:var(--font-size-base);color:var(--color-gray-700);font-weight:var(--font-weight-medium);margin:var(--spacing-sm) 0}.study-layer-card__truth{font-size:var(--font-size-sm);color:var(--color-gray-500);line-height:var(--line-height-relaxed);margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:var(--border-width-thin) solid var(--color-gray-100);flex:1}.study-layer-card__meta{display:flex;align-items:center;gap:var(--spacing-sm);margin-top:auto;padding-top:var(--spacing-md);font-size:var(--font-size-xs);color:var(--color-gray-400);font-weight:var(--font-weight-medium);text-transform:uppercase;letter-spacing:var(--letter-spacing-wide)}.layer-header{background:var(--color-bg-primary);border-radius:var(--border-radius-lg);padding:var(--spacing-xl);margin-bottom:var(--spacing-xl);border:var(--border-width-thin) solid var(--color-gray-200);box-shadow:var(--shadow-sm)}.layer-header__title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-gray-900);letter-spacing:var(--letter-spacing-tight);margin:0 0 var(--spacing-xs) 0}.layer-header__title-en{font-size:var(--font-size-base);color:var(--color-gray-400);margin-bottom:var(--spacing-md)}.layer-header__theme{font-size:var(--font-size-lg);color:var(--color-accent);font-weight:var(--font-weight-semibold);margin:var(--spacing-md) 0}.layer-header__truth{font-size:var(--font-size-base);color:var(--color-gray-600);line-height:var(--line-height-relaxed);margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:var(--border-width-thin) solid var(--color-gray-100)}.layer-header__truth--compact{margin-top:var(--spacing-md);border:none;padding:0}.knowledge-intro--in-header{margin-top:var(--spacing-xl);padding-top:var(--spacing-lg);border-top:var(--border-width-thin) solid var(--color-gray-100)}.knowledge-intro--in-header .knowledge-intro__title{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-gray-600);margin:0 0 var(--spacing-sm) 0}.knowledge-intro--in-header .knowledge-intro__paragraph{font-size:var(--font-size-xs);color:var(--color-gray-500);line-height:var(--line-height-relaxed);margin:0 0 var(--spacing-xs) 0}.knowledge-intro--in-header .knowledge-intro__paragraph:last-child{margin-bottom:0}.layer-modules{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-lg)}.layer-module-card{background:var(--color-bg-primary);border-radius:var(--border-radius-lg);padding:var(--spacing-lg);border:var(--border-width-thin) solid var(--color-gray-200);box-shadow:var(--shadow-sm);transition:transform var(--transition-base),box-shadow var(--transition-base),border-color var(--transition-base);cursor:pointer;text-decoration:none;color:inherit;display:block}.layer-module-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--color-gray-300)}.layer-module-card__code{display:inline-block;background:var(--color-accent);color:#fff;font-weight:var(--font-weight-bold);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius-sm);font-size:var(--font-size-xs);margin-bottom:var(--spacing-sm);letter-spacing:var(--letter-spacing-wide)}.layer-module-card__name{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-gray-900);margin:0 0 var(--spacing-sm) 0;line-height:var(--line-height-tight)}.layer-module-card__meta{font-size:var(--font-size-xs);color:var(--color-gray-400);margin-top:var(--spacing-sm);font-weight:var(--font-weight-medium)}.layer-modules-expanded{display:flex;flex-direction:column;gap:var(--spacing-3xl)}.layer-module-block{scroll-margin-top:calc(var(--header-height) + var(--spacing-lg))}.layer-module-block .module-header--inline{margin-bottom:var(--spacing-lg)}.layer-module-block .module-questions{margin-bottom:var(--spacing-xl)}.module-header__breadcrumb{font-size:var(--font-size-sm);color:var(--color-gray-400);margin-bottom:var(--spacing-md);display:flex;align-items:center;gap:var(--spacing-xs);flex-wrap:wrap}.module-header__breadcrumb-link{color:var(--color-accent);text-decoration:none;font-weight:var(--font-weight-medium);transition:color var(--transition-fast)}.module-header__breadcrumb-link:hover{color:var(--color-primary)}.module-header{background:var(--color-bg-primary);border-radius:var(--border-radius-lg);padding:var(--spacing-xl);margin-bottom:var(--spacing-xl);border:var(--border-width-thin) solid var(--color-gray-200);box-shadow:var(--shadow-sm)}.module-header__title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-gray-900);letter-spacing:var(--letter-spacing-tight);margin:0;display:flex;align-items:center;gap:var(--spacing-sm)}.module-header__code{display:inline-flex;align-items:center;justify-content:center;background:var(--color-accent);color:#fff;font-weight:var(--font-weight-bold);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius-sm);font-size:var(--font-size-sm);flex-shrink:0}.module-questions{background:var(--color-bg-primary);border-radius:var(--border-radius-lg);padding:var(--spacing-xl);margin-bottom:var(--spacing-xl);border:var(--border-width-thin) solid var(--color-gray-200);box-shadow:var(--shadow-sm)}.module-questions__title{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-gray-900);margin:0 0 var(--spacing-lg) 0;padding-bottom:var(--spacing-md);border-bottom:var(--border-width-medium) solid var(--color-gray-100)}.question-item{margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-lg);border-bottom:var(--border-width-thin) solid var(--color-gray-100)}.question-item:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.question-item__header{display:flex;align-items:flex-start;gap:var(--spacing-md)}.question-item__number{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:32px;background:var(--color-accent);color:#fff;font-weight:var(--font-weight-bold);border-radius:var(--border-radius-full);font-size:var(--font-size-sm);flex-shrink:0}.question-item__content{font-size:var(--font-size-base);color:var(--color-gray-700);line-height:var(--line-height-relaxed);flex:1;padding-top:var(--spacing-xs)}.module-books{background:var(--color-bg-primary);border-radius:var(--border-radius-lg);padding:var(--spacing-xl);border:var(--border-width-thin) solid var(--color-gray-200);box-shadow:var(--shadow-sm)}.module-books__title{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-gray-900);margin:0 0 var(--spacing-lg) 0;padding-bottom:var(--spacing-md);border-bottom:var(--border-width-medium) solid var(--color-gray-100)}.books-category{margin-bottom:var(--spacing-xl)}.books-category:last-child{margin-bottom:0}.books-category__title{font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-gray-600);margin:0 0 var(--spacing-md) 0;padding-bottom:var(--spacing-sm);text-transform:uppercase;letter-spacing:var(--letter-spacing-wide);font-size:var(--font-size-xs)}.books-list{display:grid;gap:var(--spacing-md)}.book-item{padding:var(--spacing-lg);background:var(--color-gray-50);border-radius:var(--border-radius-md);border-left:var(--border-width-thick) solid var(--color-accent);display:flex;flex-direction:column;transition:background var(--transition-fast)}.book-item:hover{background:var(--color-accent-faint)}.book-item__content{flex:1}.book-item__title{font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-gray-900);margin:0 0 var(--spacing-xs) 0}.book-item__author{font-size:var(--font-size-sm);color:var(--color-gray-500);margin-bottom:var(--spacing-sm)}.book-item__description{font-size:var(--font-size-sm);color:var(--color-gray-600);line-height:var(--line-height-relaxed);margin-bottom:var(--spacing-sm)}.book-item__recommendation{font-size:var(--font-size-sm);color:var(--color-accent);font-weight:var(--font-weight-medium);line-height:var(--line-height-relaxed);padding-top:var(--spacing-sm);border-top:var(--border-width-thin) solid var(--color-gray-200)}.knowledge-loading{text-align:center;padding:var(--spacing-3xl);color:var(--color-gray-400);font-size:var(--font-size-sm)}.knowledge-error{background:#fef2f2;color:var(--color-error);padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--border-radius-md);border:var(--border-width-thin) solid #fecaca;margin:var(--spacing-lg) 0;text-align:center;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium)}@media(max-width:768px){.knowledge-page__container{padding:var(--spacing-lg) var(--spacing-md)}.study-overview__head{flex-direction:column;gap:var(--spacing-md)}.study-overview__stats{width:100%;justify-content:stretch}.study-overview__stat{flex:1}.study-layers{grid-template-columns:1fr}.study-module-chip__name{white-space:normal}.layer-detail{flex-direction:column;gap:var(--spacing-sm)}.layer-module-section__grid{grid-template-columns:1fr}.module-questions--compact{border-right:none;border-bottom:var(--border-width-thin) solid var(--color-gray-100)}.study-layer-card{min-height:auto;padding:var(--spacing-lg)}.layer-modules{grid-template-columns:1fr}.module-header__title{font-size:var(--font-size-xl);flex-direction:column;align-items:flex-start}.question-item__header{flex-direction:column;gap:var(--spacing-sm)}.question-item__number{align-self:flex-start}}:root{--reading-max-width: 42rem;--reading-sidebar-width: 280px;--reading-toolbar-height: 3.25rem;--reading-nav-height: 3.5rem}.reading-index{max-width:var(--max-width-container);margin:0 auto;padding:var(--spacing-2xl) var(--spacing-xl)}.reading-index__header{margin-bottom:var(--spacing-2xl)}.reading-index__header-row{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--spacing-md)}.reading-index__lock-btn,.book-reader__lock-btn{flex-shrink:0;padding:var(--spacing-xs) var(--spacing-md);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-gray-600);background:var(--color-gray-100);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-md);cursor:pointer;transition:color var(--transition-fast),background-color var(--transition-fast)}.reading-index__lock-btn:hover,.book-reader__lock-btn:hover{color:var(--color-primary);background:var(--color-accent-faint)}.reading-index__title{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-primary);margin:0 0 var(--spacing-sm)}.reading-index__subtitle{font-size:var(--font-size-lg);color:var(--color-gray-500);margin:0}.reading-index__status,.reading-index__error{text-align:center;color:var(--color-gray-500);padding:var(--spacing-2xl)}.reading-index__error{color:var(--color-error)}.reading-index__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-xl)}.reading-card{background:var(--bg-canvas);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-lg);padding:var(--spacing-xl);display:flex;flex-direction:column;gap:var(--spacing-md);transition:box-shadow var(--transition-fast),border-color var(--transition-fast)}.reading-card:hover{border-color:var(--color-primary-light);box-shadow:var(--shadow-md)}.reading-card__title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-primary);margin:0}.reading-card__desc{font-size:var(--font-size-sm);color:var(--color-gray-500);margin:0}.reading-card__meta{font-size:var(--font-size-xs);color:var(--color-gray-400);margin:0}.reading-card__actions{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);margin-top:var(--spacing-sm)}.reading-card__btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--border-radius-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);text-decoration:none;transition:background-color var(--transition-fast),color var(--transition-fast)}.reading-card__btn--primary{background:var(--color-primary);color:var(--color-on-dark-solid)}.reading-card__btn--primary:hover{background:var(--color-primary-dark)}.reading-card__btn--secondary{background:var(--color-gray-100);color:var(--color-gray-600)}.reading-card__btn--secondary:hover{background:var(--color-gray-200)}.reading-card__last{font-size:var(--font-size-xs);color:var(--color-gray-500);margin:0;padding-top:var(--spacing-sm);border-top:var(--border-width-thin) solid var(--color-gray-100)}.app-layout--reading{height:100vh;overflow:hidden}.app-main--reading{padding:0;display:flex;flex-direction:column;min-height:0;overflow:hidden}.book-reader{display:flex;flex-direction:column;height:100%;min-height:0;background:var(--bg-main)}.book-reader__toolbar{flex-shrink:0;height:var(--reading-toolbar-height);display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md);padding:0 var(--spacing-lg);background:var(--bg-canvas);border-bottom:var(--border-width-thin) solid var(--color-gray-200);z-index:var(--z-index-sticky)}.book-reader__toolbar-left{display:flex;align-items:center;gap:var(--spacing-md);min-width:0}.book-reader__back{flex-shrink:0;font-size:var(--font-size-xs);color:var(--color-gray-500);text-decoration:none;padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius-sm);transition:color var(--transition-fast),background-color var(--transition-fast)}.book-reader__back:hover{color:var(--color-primary);background:var(--color-gray-100)}.book-reader__toolbar-right{flex-shrink:0}.book-reader__toc-toggle{display:none;padding:var(--spacing-xs) var(--spacing-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-primary);background:var(--color-accent-faint);border:none;border-radius:var(--border-radius-md);cursor:pointer}.book-reader__book-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-gray-600);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.book-reader__font-controls{display:flex;gap:var(--spacing-xs)}.book-reader__font-btn{min-width:2rem;height:2rem;padding:0 var(--spacing-sm);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-gray-500);background:transparent;border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-sm);cursor:pointer;transition:color var(--transition-fast),border-color var(--transition-fast),background-color var(--transition-fast)}.book-reader__font-btn:hover{color:var(--color-primary);border-color:var(--color-primary-light)}.book-reader__font-btn--active{color:var(--color-primary);background:var(--color-accent-faint);border-color:var(--color-primary)}.book-reader__body{flex:1;display:flex;min-height:0;position:relative}.book-reader__sidebar{flex-shrink:0;width:var(--reading-sidebar-width);background:var(--bg-sidebar);border-right:var(--border-width-thin) solid var(--color-gray-200);display:flex;flex-direction:column;min-height:0}.book-reader__sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md) var(--spacing-lg);border-bottom:var(--border-width-thin) solid var(--color-gray-200)}.book-reader__sidebar-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-bold);color:var(--color-primary);margin:0}.book-reader__sidebar-close{display:none;padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--font-size-xs);color:var(--color-gray-500);background:none;border:none;cursor:pointer}.book-reader__toc{flex:1;overflow-y:auto;padding:var(--spacing-sm) 0}.book-reader__toc-list{list-style:none;margin:0;padding:0}.book-reader__toc-item{margin:0}.book-reader__toc-link{display:block;padding:var(--spacing-sm) var(--spacing-lg);font-size:var(--font-size-sm);color:var(--color-gray-600);text-decoration:none;line-height:var(--line-height-snug);transition:background-color var(--transition-fast),color var(--transition-fast)}.book-reader__toc-link:hover{background:var(--color-gray-100);color:var(--color-primary)}.book-reader__toc-link--active{color:var(--color-primary);background:var(--color-accent-faint);font-weight:var(--font-weight-medium);border-right:3px solid var(--color-primary)}.book-reader__toc-sublist{list-style:none;margin:0;padding:0 0 var(--spacing-sm)}.book-reader__toc-subitem--level-2 .book-reader__toc-sublink{padding-left:calc(var(--spacing-lg) + var(--spacing-md));font-size:var(--font-size-xs)}.book-reader__toc-subitem--level-3 .book-reader__toc-sublink{padding-left:calc(var(--spacing-lg) + var(--spacing-xl));font-size:var(--font-size-xs);color:var(--color-gray-400)}.book-reader__toc-sublink{display:block;padding:var(--spacing-xs) var(--spacing-lg);color:var(--color-gray-500);text-decoration:none;transition:color var(--transition-fast)}.book-reader__toc-sublink:hover{color:var(--color-primary)}.book-reader__overlay{display:none}.book-reader__content-wrap{flex:1;overflow-y:auto;min-height:0}.book-reader__status{max-width:var(--reading-max-width);margin:var(--spacing-2xl) auto;padding:0 var(--spacing-xl);text-align:center;color:var(--color-gray-500)}.book-reader__status--error{color:var(--color-error)}.book-reader__content{max-width:var(--reading-max-width);margin:0 auto;padding:var(--spacing-2xl) var(--spacing-xl) calc(var(--spacing-2xl) + var(--reading-nav-height));font-size:var(--reading-font-size, 1.0625rem);line-height:var(--reading-line-height, 1.75);color:var(--el-text-color-primary);font-family:var(--font-family-base)}.book-reader__content h1{font-size:1.75em;font-weight:var(--font-weight-bold);color:var(--color-primary);margin:0 0 var(--spacing-lg);line-height:var(--line-height-tight)}.book-reader__content h2{font-size:1.35em;font-weight:var(--font-weight-bold);color:var(--color-primary);margin:var(--spacing-2xl) 0 var(--spacing-md);padding-top:var(--spacing-md);border-top:var(--border-width-thin) solid var(--color-gray-100)}.book-reader__content h3{font-size:1.15em;font-weight:var(--font-weight-semibold);color:var(--color-gray-700);margin:var(--spacing-xl) 0 var(--spacing-sm)}.book-reader__content p{margin:0 0 var(--spacing-md)}.book-reader__content ul,.book-reader__content ol{margin:0 0 var(--spacing-md);padding-left:var(--spacing-xl)}.book-reader__content li{margin-bottom:var(--spacing-xs)}.book-reader__content img{display:block;max-width:100%;height:auto;margin:var(--spacing-lg) auto;border-radius:var(--border-radius-md)}.book-reader__content table{width:100%;border-collapse:collapse;margin:var(--spacing-lg) 0;font-size:.9em;display:block;overflow-x:auto}.book-reader__content th,.book-reader__content td{border:var(--border-width-thin) solid var(--color-gray-200);padding:var(--spacing-sm) var(--spacing-md);text-align:left}.book-reader__content th{background:var(--color-gray-50);font-weight:var(--font-weight-semibold)}.book-reader__content blockquote{margin:var(--spacing-lg) 0;padding:var(--spacing-md) var(--spacing-lg);border-left:4px solid var(--color-primary-light);background:var(--color-gray-50);color:var(--color-gray-600)}.book-reader__content .katex-display{overflow-x:auto;overflow-y:hidden;margin:var(--spacing-lg) 0}.book-reader__content .math-display{overflow-x:auto;margin:var(--spacing-lg) 0}.book-reader__content .math-inline .katex{font-size:1em}.book-reader__content .math-plain{font-family:inherit;white-space:nowrap}.book-reader__content code{font-size:.9em;background:var(--color-gray-100);padding:.1em .35em;border-radius:var(--border-radius-sm)}.book-reader__content pre{overflow-x:auto;background:var(--color-gray-50);padding:var(--spacing-md);border-radius:var(--border-radius-md);margin:var(--spacing-lg) 0}.book-reader__content a{color:var(--color-primary-light);text-decoration:underline;text-underline-offset:2px}.book-reader__content a:hover{color:var(--color-primary)}.book-reader__nav{flex-shrink:0;display:flex;align-items:stretch;justify-content:space-between;gap:var(--spacing-md);min-height:var(--reading-nav-height);padding:var(--spacing-sm) var(--spacing-lg);background:var(--bg-canvas);border-top:var(--border-width-thin) solid var(--color-gray-200)}.book-reader__nav-btn{flex:1;max-width:45%;display:flex;align-items:center;padding:var(--spacing-sm) var(--spacing-md);font-size:var(--font-size-sm);color:var(--color-primary);text-decoration:none;border-radius:var(--border-radius-md);transition:background-color var(--transition-fast);line-height:var(--line-height-snug)}.book-reader__nav-btn:hover{background:var(--color-accent-faint)}.book-reader__nav-btn--prev{justify-content:flex-start}.book-reader__nav-btn--next{justify-content:flex-end;text-align:right}.book-reader__nav-spacer{flex:1}@media(max-width:960px){.book-reader__toc-toggle{display:inline-flex}.book-reader__book-title{display:none}.book-reader__sidebar{position:fixed;top:var(--reading-toolbar-height);left:0;bottom:var(--reading-nav-height);z-index:var(--z-index-modal);transform:translate(-100%);transition:transform var(--transition-normal);box-shadow:var(--shadow-lg)}.book-reader__sidebar--open{transform:translate(0)}.book-reader__sidebar-close{display:inline-flex}.book-reader__overlay{display:block;position:fixed;inset:0;top:var(--reading-toolbar-height);bottom:var(--reading-nav-height);background:var(--color-bg-overlay);z-index:calc(var(--z-index-modal) - 1)}.book-reader__content{padding:var(--spacing-xl) var(--spacing-md) calc(var(--spacing-xl) + var(--reading-nav-height))}.book-reader__nav-btn{font-size:var(--font-size-xs);max-width:48%}.reading-index{padding:var(--spacing-xl) var(--spacing-md)}}@media(max-width:480px){.book-reader__nav-btn{max-width:100%}.book-reader__nav{flex-direction:column}}.reading-unlock{min-height:calc(100vh - var(--header-height));display:flex;align-items:center;justify-content:center;padding:var(--spacing-2xl) var(--spacing-md)}.reading-unlock__card{width:100%;max-width:24rem;background:var(--bg-canvas);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-lg);padding:var(--spacing-2xl);box-shadow:var(--shadow-md)}.reading-unlock__header{margin-bottom:var(--spacing-xl);text-align:center}.reading-unlock__title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-primary);margin:0 0 var(--spacing-sm)}.reading-unlock__subtitle{font-size:var(--font-size-sm);color:var(--color-gray-500);margin:0;line-height:var(--line-height-relaxed)}.reading-unlock__form{display:flex;flex-direction:column;gap:var(--spacing-md)}.reading-unlock__label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-gray-600)}.reading-unlock__input{width:100%;padding:var(--spacing-sm) var(--spacing-md);font-size:var(--font-size-base);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-md);background:var(--bg-main);color:var(--el-text-color-primary)}.reading-unlock__input:focus{outline:none;border-color:var(--color-primary-light);box-shadow:0 0 0 3px var(--color-accent-glow)}.reading-unlock__input:disabled{opacity:.6;cursor:not-allowed}.reading-unlock__error{font-size:var(--font-size-sm);color:var(--color-error);margin:0}.reading-unlock__submit{width:100%;padding:var(--spacing-sm) var(--spacing-lg);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-on-dark-solid);background:var(--color-primary);border:none;border-radius:var(--border-radius-md);cursor:pointer;transition:background-color var(--transition-fast)}.reading-unlock__submit:hover:not(:disabled){background:var(--color-primary-dark)}.reading-unlock__submit:disabled{opacity:.6;cursor:not-allowed}.reading-unlock__footer{margin-top:var(--spacing-xl);text-align:center}.reading-unlock__back{font-size:var(--font-size-sm);color:var(--color-gray-500);text-decoration:none}.reading-unlock__back:hover{color:var(--color-primary)}.reading-prompt{position:fixed;inset:0;z-index:200;display:flex;align-items:flex-end;justify-content:center;padding:var(--spacing-md);pointer-events:none}.reading-prompt__backdrop{position:absolute;inset:0;border:none;background:#0f172a59;cursor:default;pointer-events:auto}.reading-prompt__panel{position:relative;z-index:1;width:100%;max-width:32rem;max-height:min(70vh,28rem);display:flex;flex-direction:column;background:var(--bg-canvas);border:var(--border-width-thin) solid var(--color-gray-200);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-lg);pointer-events:auto;overflow:hidden}.reading-prompt__header{padding:var(--spacing-md) var(--spacing-lg) var(--spacing-sm);border-bottom:var(--border-width-thin) solid var(--color-gray-100)}.reading-prompt__title{margin:0 0 var(--spacing-xs);font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-primary)}.reading-prompt__status{margin:0;font-size:var(--font-size-xs);color:var(--color-gray-500);line-height:var(--line-height-relaxed)}.reading-prompt__textarea{flex:1;min-height:10rem;margin:0;padding:var(--spacing-md) var(--spacing-lg);border:none;resize:none;font-family:var(--font-family-mono, ui-monospace, monospace);font-size:var(--font-size-xs);line-height:var(--line-height-relaxed);color:var(--el-text-color-primary);background:var(--bg-main)}.reading-prompt__textarea:focus{outline:none}.reading-prompt__actions{display:flex;justify-content:flex-end;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-lg) var(--spacing-md);border-top:var(--border-width-thin) solid var(--color-gray-100)}.reading-prompt__btn{padding:var(--spacing-xs) var(--spacing-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);border-radius:var(--border-radius-md);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast)}.reading-prompt__btn--secondary{color:var(--color-gray-600);background:transparent;border:var(--border-width-thin) solid var(--color-gray-200)}.reading-prompt__btn--secondary:hover{background:var(--color-gray-50)}.reading-prompt__btn--primary{color:var(--color-on-dark-solid);background:var(--color-primary);border:none}.reading-prompt__btn--primary:hover{background:var(--color-primary-dark)}@media(min-width:768px){.reading-prompt{align-items:flex-start;justify-content:flex-start;padding:0}.reading-prompt__panel:not([style*="position: fixed"]){margin-bottom:var(--spacing-md)}}@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{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.18.5"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .katex-base,.katex .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;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .katex-vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .katex-thinbox{display:inline-flex;flex-direction:row;max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .katex-hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.katex-root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .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{display:inline-block;width:.12em}.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 .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.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;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .katex-stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.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{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;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{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}