@charset "UTF-8";:root{color-scheme:light;--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--bg-glass: rgba(255, 255, 255, .7);--header-bg: rgba(255, 255, 255, .9);--text-main: #111827;--text-secondary: #374151;--text-muted: #6b7280;--text-light: #9ca3af;--accent-blue: #3b82f6;--accent-blue-hover: #2563eb;--accent-purple: #8b5cf6;--accent-pink: #ec4899;--accent-teal: #14b8a6;--success-green: #10b981;--success-bg: #ecfdf5;--warning-amber: #f59e0b;--error-red: #ef4444;--border-light: #e5e7eb;--border-medium: #d1d5db;--border-focus: var(--accent-blue);--card-bg: #ffffff;--card-shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--card-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--card-shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--glass-bg: rgba(255, 255, 255, .7);--glass-border: rgba(255, 255, 255, .3);--glass-shadow: 0 8px 32px rgba(31, 38, 135, .1);--space-0: 0;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-2xl: 24px;--radius-full: 9999px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: 2.25rem;--text-5xl: 3rem;--text-6xl: 3.75rem;--weight-normal: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--weight-extrabold: 800;--leading-none: 1;--leading-tight: 1.25;--leading-snug: 1.375;--leading-normal: 1.5;--leading-relaxed: 1.625;--leading-loose: 2;--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease;--transition-bounce: .3s cubic-bezier(.68, -.55, .265, 1.55);--anim-stagger-delay: 10ms;--anim-duration: .3s;--anim-distance: 16px;--content-width: 1400px;--sidebar-width: 280px;--header-height: 64px;--z-dropdown: 100;--z-sticky: 200;--z-modal: 300;--z-tooltip: 400}.knowledge-eyebrow{display:inline-block;color:var(--accent-purple);font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.1em;line-height:1.2;text-transform:uppercase}.knowledge-hub,.knowledge-article{max-width:1120px;margin:0 auto}.knowledge-hub__hero{position:relative;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(250px,.55fr);align-items:center;gap:var(--space-8);min-height:350px;margin-top:var(--space-6);padding:clamp(2rem,4.5vw,4rem);overflow:hidden;border:1px solid var(--border-light);border-radius:var(--radius-2xl);background:radial-gradient(circle at 82% 18%,rgba(139,92,246,.18),transparent 34%),radial-gradient(circle at 18% 82%,rgba(20,184,166,.12),transparent 32%),var(--bg-secondary)}.knowledge-hub__copy{position:relative;z-index:1}.knowledge-hub__copy h1{max-width:720px;margin:var(--space-3) 0 var(--space-5);font-size:clamp(2.3rem,4.2vw,3.5rem);letter-spacing:-.045em;line-height:1}.knowledge-hub__copy p{max-width:680px;margin:0;color:var(--text-secondary);font-size:var(--text-xl);line-height:var(--leading-relaxed)}.knowledge-hub__specimen{position:relative;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-3);transform:rotate(3deg)}.knowledge-hub__specimen span{display:grid;place-items:center;aspect-ratio:1;border:1px solid var(--border-light);border-radius:var(--radius-xl);background:var(--card-bg);box-shadow:var(--card-shadow);font-family:var(--font-display);font-size:clamp(2rem,4vw,4rem)}.knowledge-hub__specimen span:nth-child(2){transform:translateY(var(--space-8))}.knowledge-hub__specimen span:nth-child(3){color:var(--accent-teal)}.knowledge-hub__specimen span:nth-child(4){color:var(--accent-blue);transform:translateY(var(--space-8))}.knowledge-hub__specimen span:nth-child(5){display:none}.knowledge-hub__intro{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-8);padding:var(--space-10) clamp(0rem,4vw,3rem);border-bottom:1px solid var(--border-light)}.knowledge-hub__intro p{margin:0;font-size:var(--text-lg);line-height:var(--leading-relaxed)}.knowledge-hub__intro p:last-child{color:var(--text-muted);font-size:var(--text-base)}.knowledge-hub__articles,.knowledge-related{padding:var(--space-12) 0}.knowledge-section-heading{margin-bottom:var(--space-8)}.knowledge-section-heading h2{margin:var(--space-2) 0 0;font-size:var(--text-4xl);letter-spacing:-.03em}.knowledge-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-5)}.knowledge-card{min-width:0}.knowledge-card>a{display:flex;flex-direction:column;height:100%;padding:var(--space-8);border:1px solid var(--border-light);border-radius:var(--radius-xl);background:var(--card-bg);color:var(--text-main);text-decoration:none;transition:transform var(--transition-base),border-color var(--transition-base),box-shadow var(--transition-base)}.knowledge-card>a:hover{transform:translateY(-3px);border-color:#3b82f673;box-shadow:var(--card-shadow-hover)}.knowledge-card h2{margin:var(--space-5) 0 var(--space-3);font-size:var(--text-2xl);letter-spacing:-.02em}.knowledge-card p{flex:1;margin-bottom:var(--space-6);line-height:var(--leading-relaxed)}.knowledge-card__top,.knowledge-card__meta,.knowledge-article__meta{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3)}.knowledge-card__symbol{display:grid;place-items:center;width:54px;height:54px;border-radius:var(--radius-lg);background:var(--bg-tertiary);font-size:var(--text-2xl)}.knowledge-card__series,.knowledge-card__meta{color:var(--text-muted);font-size:var(--text-sm)}.knowledge-card__read{color:var(--accent-blue);font-weight:var(--weight-semibold)}.knowledge-card--compact h2{font-size:var(--text-lg)}.knowledge-card--compact p{font-size:var(--text-sm)}.knowledge-card--compact>a{padding:var(--space-5)}.knowledge-card--compact .knowledge-card__symbol{width:42px;height:42px;font-size:var(--text-xl)}.knowledge-teaser{max-width:1120px;margin:var(--space-12) auto;padding:var(--space-8);border:1px solid var(--border-light);border-radius:var(--radius-2xl);background:var(--bg-secondary)}.knowledge-teaser__heading{display:flex;align-items:end;justify-content:space-between;gap:var(--space-6);margin-bottom:var(--space-6)}.knowledge-teaser__heading h2{margin:var(--space-2) 0 0;font-size:var(--text-3xl)}.knowledge-teaser__heading>a{flex:none;font-weight:var(--weight-semibold)}.knowledge-teaser__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-4)}.knowledge-article{max-width:1040px}.knowledge-article__header{padding:var(--space-8) 0 var(--space-10);border-bottom:1px solid var(--border-light)}.knowledge-back{display:inline-flex;margin-bottom:var(--space-8);color:var(--text-muted);font-size:var(--text-sm);font-weight:var(--weight-semibold)}.knowledge-article__title-row{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:var(--space-10)}.knowledge-article__title-row h1{max-width:800px;margin:var(--space-3) 0 var(--space-5);font-size:clamp(2.1rem,3.6vw,3.25rem);letter-spacing:-.04em;line-height:1.06}.knowledge-article__symbol{display:grid;place-items:center;width:clamp(92px,11vw,120px);aspect-ratio:1;border:1px solid var(--border-light);border-radius:var(--radius-2xl);background:var(--bg-secondary);font-size:clamp(2.75rem,5.5vw,4.75rem)}.knowledge-article__dek{max-width:740px;color:var(--text-secondary);font-size:var(--text-xl);line-height:var(--leading-relaxed)}.knowledge-article__meta{justify-content:flex-start;flex-wrap:wrap;margin-top:var(--space-6);color:var(--text-muted);font-size:var(--text-sm)}.knowledge-article__meta span+span:before{content:"·";margin-right:var(--space-3)}.character-inspector{margin:var(--space-10) 0;padding:clamp(1.5rem,4vw,2.5rem);border:1px solid var(--border-light);border-radius:var(--radius-2xl);background:linear-gradient(135deg,#3b82f612,#8b5cf612),var(--card-bg)}.character-inspector__intro{display:grid;grid-template-columns:1.2fr .8fr;gap:var(--space-8);margin-bottom:var(--space-6)}.character-inspector__intro h2{margin:var(--space-2) 0 0;font-size:var(--text-2xl)}.character-inspector__intro p{margin:0;color:var(--text-muted);font-size:var(--text-sm);line-height:var(--leading-relaxed)}.character-inspector__controls label{display:block;margin-bottom:var(--space-2);color:var(--text-secondary);font-size:var(--text-sm);font-weight:var(--weight-semibold)}.character-inspector__controls>div{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:var(--space-3)}.character-inspector__controls input{min-width:0;font-family:var(--font-mono);font-size:var(--text-xl)}.character-inspector__controls button{padding:0 var(--space-5);border-radius:var(--radius-md);background:var(--text-main);color:var(--bg-primary);font-weight:var(--weight-semibold)}.character-inspector__controls button:disabled{cursor:not-allowed;opacity:.45}.character-inspector__controls button:focus-visible{outline:2px solid var(--accent-blue);outline-offset:2px}.character-inspector__summary{display:flex;gap:var(--space-2);margin:var(--space-4) 0;color:var(--text-muted);font-size:var(--text-sm)}.character-inspector__summary strong{color:var(--text-main)}.codepoint-list{display:flex;flex-wrap:wrap;gap:var(--space-2)}.codepoint-list li{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border:1px solid var(--border-light);border-radius:var(--radius-md);background:var(--card-bg)}.codepoint-list code{color:var(--text-muted);font-family:var(--font-mono);font-size:var(--text-xs)}.codepoint-list__glyph{min-width:1.4em;color:var(--text-main);font-size:var(--text-lg);text-align:center}.knowledge-article__body{max-width:880px;margin:0 auto;padding:var(--space-4) 0 var(--space-10)}.knowledge-article__body h2{margin:var(--space-12) 0 var(--space-4);font-size:var(--text-3xl);letter-spacing:-.025em;scroll-margin-top:calc(var(--header-height) + var(--space-4))}.knowledge-article__body h3{margin:var(--space-8) 0 var(--space-3);font-size:var(--text-xl);scroll-margin-top:calc(var(--header-height) + var(--space-4))}.knowledge-article__body p,.knowledge-article__body li{color:var(--text-secondary);font-size:1.08rem;line-height:1.82}.knowledge-article__body p{margin-bottom:var(--space-5)}.knowledge-article__body ul,.knowledge-article__body ol{margin:var(--space-5) 0 var(--space-6);padding-left:var(--space-6)}.knowledge-article__body ul{list-style:disc}.knowledge-article__body ol{list-style:decimal}.knowledge-article__body li{margin-bottom:var(--space-2);padding-left:var(--space-1)}.knowledge-article__body strong{color:var(--text-main)}.knowledge-article__body code{padding:.15em .38em;border:1px solid var(--border-light);border-radius:6px;background:var(--bg-secondary);color:var(--text-main);font-family:var(--font-mono);font-size:.92em}.knowledge-article__body blockquote{margin:var(--space-8) 0;padding:var(--space-5) var(--space-6);border-left:4px solid var(--accent-purple);border-radius:0 var(--radius-md) var(--radius-md) 0;background:var(--bg-secondary)}.knowledge-article__body blockquote p{margin:0;color:var(--text-main);font-weight:var(--weight-medium)}.knowledge-article__body hr{margin:var(--space-10) 0;border:0;border-top:1px solid var(--border-light)}.knowledge-related-tools,.knowledge-references{margin-top:var(--space-10);padding:var(--space-8);border:1px solid var(--border-light);border-radius:var(--radius-2xl);background:var(--bg-secondary)}.knowledge-related-tools>h2,.knowledge-references>h2{margin:var(--space-2) 0 var(--space-6);font-size:var(--text-2xl)}.knowledge-related-tools>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-3)}.knowledge-related-tools>div a{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:var(--space-1) var(--space-3);padding:var(--space-4);border:1px solid var(--border-light);border-radius:var(--radius-lg);background:var(--card-bg);color:var(--text-main)}.knowledge-related-tools>div a>span{grid-row:1/3;width:10px;height:10px;border-radius:var(--radius-full)}.knowledge-related-tools>div a small{color:var(--text-muted)}.knowledge-references ol{display:grid;gap:var(--space-4)}.knowledge-references li{display:grid;grid-template-columns:104px minmax(0,1fr);gap:var(--space-4);padding-bottom:var(--space-4);border-bottom:1px solid var(--border-light)}.knowledge-references li:last-child{padding-bottom:0;border-bottom:0}.knowledge-references a{color:var(--text-main);font-weight:var(--weight-semibold);line-height:var(--leading-snug)}.knowledge-references p{display:flex;flex-wrap:wrap;gap:var(--space-1) var(--space-3);margin:var(--space-2) 0 0;color:var(--text-muted);font-size:var(--text-sm)}.knowledge-references code{font-family:var(--font-mono);font-size:var(--text-xs)}.source-type{align-self:start;padding:var(--space-1) var(--space-2);border-radius:var(--radius-full);background:var(--bg-tertiary);color:var(--text-secondary);font-size:var(--text-xs);font-weight:var(--weight-semibold);text-align:center}.source-type--paper{background:#8b5cf61f;color:var(--accent-purple)}.source-type--standard{background:#14b8a61f;color:var(--accent-teal)}.source-type--archive{background:#3b82f61f;color:var(--accent-blue)}@media(max-width:820px){.knowledge-hub__hero{grid-template-columns:1fr;min-height:0}.knowledge-hub__specimen{grid-template-columns:repeat(4,1fr);transform:none}.knowledge-hub__specimen span:nth-child(2),.knowledge-hub__specimen span:nth-child(4){transform:none}.knowledge-card-grid,.knowledge-hub__intro,.character-inspector__intro,.knowledge-teaser__grid{grid-template-columns:1fr}.knowledge-article__symbol{display:none}.knowledge-article__title-row{grid-template-columns:1fr}}@media(max-width:600px){.knowledge-hub__hero,.knowledge-teaser,.knowledge-related-tools,.knowledge-references{padding:var(--space-5)}.knowledge-hub__hero{margin-top:var(--space-4)}.knowledge-hub__copy p,.knowledge-article__dek{font-size:var(--text-lg)}.knowledge-hub__specimen span{font-size:var(--text-2xl)}.knowledge-card-grid{grid-template-columns:1fr}.knowledge-card>a{padding:var(--space-5)}.knowledge-teaser__heading{align-items:start;flex-direction:column}.character-inspector__controls>div{grid-template-columns:1fr}.character-inspector__controls button{min-height:46px}.knowledge-related-tools>div{grid-template-columns:1fr}.knowledge-references li{grid-template-columns:1fr;gap:var(--space-2)}.source-type{justify-self:start}}