:root{--container-max:1440px;--content-max:720px;--sidebar-width:240px;--container-padding:32px;--header-height:88px;--footer-band-height:calc(3 * var(--header-height));--hero-height:440px;--font-sans:"Pretendard",system-ui,sans-serif;--font-family-sans:var(--font-sans);--font-family-serif:"Bodoni Moda",Bodoni,serif;--font-family-icon:"Material Symbols Outlined";--font-weight-regular:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--font-weight-extrabold:800;--font-weight-black:900;--font-size-11:11px;--font-size-12:12px;--font-size-14:14px;--font-size-16:16px;--font-size-18:18px;--font-size-20:20px;--font-size-22:22px;--font-size-24:24px;--font-size-28:28px;--font-size-36:36px;--font-size-56:56px;--line-height-1:1;--line-height-tight:1.2;--line-height-title:1.25;--line-height-normal:1.4;--line-height-reading:1.6;--line-height-body:1.7;--line-height-display-hero:0.95;--line-height-title-emphasis:1.15;--line-height-title-compact:1.3;--body-size:16px;--body-height:1.7;--body-color:#333333;--display-size:var(--type-heading-h1-size);--h1-size:var(--type-heading-h1-size);--h1-weight:var(--type-heading-h1-weight);--h1-height:var(--type-display-line-height);--h2-size:var(--type-heading-h2-size);--h2-weight:var(--type-heading-h2-weight);--h3-size:var(--type-heading-h3-size);--h3-weight:var(--type-heading-h3-weight);--paragraph-margin:16px;--summary-size:var(--type-summary-size);--summary-color:#555555;--color-bg:#FFFFFF;--color-text:#111111;--color-text-secondary:#666666;--color-text-muted:#777777;--color-border:#DDDDDD;--color-border-card:#DDDDDD;--color-border-frame:#ccc;--color-hover-bg:#EEEEEE;--color-card-hover:#EEEEEE;--color-key:#18ffff;--color-black:#000000;--color-white:#ffffff;--color-surface-soft:#fafafa;--color-surface-muted:#f5f5f5;--color-neutral-eee:#eeeeee;--color-neutral-ccc:#cccccc;--color-neutral-ddd:#dddddd;--color-neutral-bbb:#bbbbbb;--color-neutral-aaa:#aaaaaa;--color-bluegray-50:#eceff1;--motion-key:var(--color-key);--motion-bg:#fcfcfc;--motion-stroke:#999999;--motion-muted:#cccccc;--motion-neutral:#eeeeee;--motion-black:#000000;--motion-white:#ffffff;--motion-ink:#111111;--motion-gray-dot:#9e9e9e;--motion-surface:#fafafa;--motion-divider:#dddddd;--motion-bluegray-50:#eceff1;--motion-surface-shade:#d9dfe3;--space-4:4px;--space-8:8px;--space-12:12px;--space-16:16px;--space-24:24px;--space-32:32px;--space-48:48px;--space-64:64px;--card-padding:24px;--card-radius:12px;--button-padding:10px 16px;--button-radius:8px;--sidebar-font-size:14px;--sidebar-line-height:1.6;--breadcrumb-size:14px;--breadcrumb-color:var(--color-text-muted);--type-lnb-section-toggle-size:13px;--type-hub-featured-image-icon-size:32px;--type-hub-hero-title-size:64px;--type-featured-popular-top-icon-size:32px;--type-curriculum-card-index-size:60px;--type-curriculum-card-hover-icon-size:40px;--type-articles-grid-icon-size:40px;--type-articles-category-icon-size:64px;--type-articles-thumb-top-icon-size:32px;--type-articles-list-icon-size:40px;--type-articles-list-icon-inner-size:32px;--type-curriculum-track-index-size:60px;--type-curriculum-track-hover-icon-size:40px;--type-hub-first-card-title-size:32px;--type-hub-quote-en-tablet-size:42px;--type-article-page-title-tablet-size:40px;--type-body-size:var(--font-size-16);--type-summary-size:var(--font-size-18);--type-heading-h1-size:var(--font-size-56);--type-heading-h2-size:var(--font-size-28);--type-heading-h3-size:var(--font-size-22);--type-heading-h1-weight:var(--font-weight-bold);--type-heading-h2-weight:var(--font-weight-bold);--type-heading-h3-weight:var(--font-weight-semibold);--type-icon-line-height:var(--line-height-1);--type-body-copy-line-height:var(--body-height);--type-sidebar-nav-line-height:var(--sidebar-line-height);--type-body-reading-line-height:var(--line-height-reading);--type-ui-label-line-height:var(--line-height-normal);--type-heading-tight-line-height:var(--line-height-tight);--type-heading-title-line-height:var(--line-height-title);--type-display-line-height:var(--line-height-tight);--type-section-title-line-height:var(--line-height-title);--type-section-subtitle-line-height:var(--line-height-tight);--type-hub-hero-title-line-height:var(--line-height-display-hero);--type-hub-first-card-title-line-height:var(--line-height-title-emphasis);--type-article-summary-compact-line-height:var(--line-height-title-compact);--divider-dot-color:#ddd;--divider-dot-size:2px;--divider-gap:2px;--divider-height:1px;--divider-margin:40px 0}.page-stack{gap:var(--space-24)}.page-stack,.section-block{display:flex;flex-direction:column}.section-block{gap:var(--space-16)}.section-header{display:flex;flex-direction:column;gap:var(--space-8)}.eyebrow{margin:0;font-size:var(--font-size-12);letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-secondary)}.concept-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:var(--space-16);gap:var(--space-16)}.eyebrow-row{display:inline-flex;align-items:center;gap:var(--space-8);font-size:var(--font-size-12);color:var(--color-text-muted)}.article-title-section{display:flex;flex-direction:column;gap:var(--space-8)}.article-body-root{width:100%}.concept-card{flex-direction:column;padding:var(--space-16);border:1px solid var(--color-border-frame);border-radius:var(--card-radius);text-decoration:none;color:inherit;background:var(--color-bg)}.concept-card,.concept-card-top{display:flex;gap:var(--space-12)}.concept-card-top{align-items:center;justify-content:space-between}.card-index{font-size:var(--font-size-12);color:var(--color-text-muted)}.card-footer{display:flex;align-items:center;justify-content:space-between;gap:var(--space-12)}.card-arrow{color:var(--color-text-secondary)}.article-meta-card{border:1px solid var(--color-border-frame);border-radius:var(--card-radius);padding:var(--space-14);display:flex;flex-direction:column;gap:var(--space-8);text-decoration:none;color:inherit}.article-meta-card-category,.article-meta-card-type{font-size:var(--font-size-12);color:var(--color-text-muted)}.article-meta-card-title{margin:0;font-size:var(--font-size-16);color:var(--color-text)}.articles-by-type,.articles-list{display:flex;flex-direction:column;gap:var(--space-16)}.articles-card-list{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:var(--space-12);gap:var(--space-12)}.articles-empty{color:var(--color-text-secondary)}.articles-type-heading{margin:0}.articles-search-form{display:flex;flex-direction:column;gap:var(--space-8)}.content-type-filter{display:inline-flex;align-items:center;gap:var(--space-8)}.academy-layout{display:grid;grid-template-columns:minmax(220px,280px) minmax(0,1fr);grid-gap:var(--space-24);gap:var(--space-24)}.academy-content,.academy-sidebar{min-width:0}.academy-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:var(--space-16);gap:var(--space-16)}.academy-card{border:1px solid var(--color-border-frame);border-radius:var(--card-radius);padding:var(--space-16);display:flex;flex-direction:column;gap:var(--space-10);text-decoration:none;color:inherit}.academy-meta{font-size:var(--font-size-12);color:var(--color-text-secondary)}.search-lnb-filters{display:flex;flex-direction:column;gap:var(--space-8)}.search-lnb-option{display:flex;align-items:center;gap:var(--space-8);margin:0;padding:var(--space-8) 0 var(--space-8) var(--space-12);font-size:var(--sidebar-font-size);line-height:var(--type-sidebar-nav-line-height);color:var(--color-text-secondary);cursor:pointer;transition:background-color .15s ease,color .15s ease}.search-lnb-option:hover{color:var(--color-text)}.search-lnb-option.is-active{color:var(--color-text);background-color:rgba(0,0,0,.05)}.search-lnb-option input[type=radio].search-lnb-option-radio{flex-shrink:0;width:14px;height:14px;margin:0;-moz-appearance:none;appearance:none;-webkit-appearance:none;border:2px solid rgba(17,17,17,.35);border-radius:50%;background-color:var(--color-bg);background-image:none;background-repeat:no-repeat;background-position:50%;background-size:auto;opacity:.55;cursor:pointer;transition:border-color .15s ease,opacity .15s ease,background .15s ease}.search-lnb-option input[type=radio].search-lnb-option-radio:focus-visible{outline:2px solid var(--color-key);outline-offset:2px}.search-lnb-option input[type=radio].search-lnb-option-radio.is-active{opacity:1;border-color:var(--color-text);background-color:var(--color-bg);background-image:radial-gradient(circle at center,var(--color-text) 0,var(--color-text) 42%,transparent 43%)}.search-lnb-option-text{flex:1 1}.search-lnb-option.is-active .search-lnb-option-text{color:var(--color-text);font-weight:var(--font-weight-extrabold)}.search-lnb-option.is-active .search-lnb-option-text:after{content:"";display:inline-block;width:4px;height:4px;margin-left:6px;vertical-align:middle;border-radius:50%;background:#18ffff}.search-panel{width:100%}.search-shell{gap:var(--space-16)}.search-header,.search-shell{display:flex;flex-direction:column}.search-header{gap:var(--space-8)}.search-copy{margin:0;color:var(--color-text-secondary)}.search-body{display:flex;flex-direction:column;gap:var(--space-12)}.search-input{width:100%;color:var(--color-text)}.search-input,.search-result{border:1px solid var(--color-border-frame);border-radius:var(--radius-10);padding:var(--space-12) var(--space-14);background:var(--color-bg)}.search-result{display:flex;align-items:center;justify-content:space-between;gap:var(--space-12);text-decoration:none;color:inherit}.search-result-main{display:flex;flex-direction:column;gap:var(--space-4);min-width:0}