.learn-page{text-align:left;color:var(--color-text)}.public-learn-page__content p{margin:0 0 var(--space-4);line-height:1.7;color:var(--color-text)}.public-learn-page__breadcrumb a{color:var(--color-primary);text-decoration:none}.public-learn-page__breadcrumb a:hover{text-decoration:underline}.public-learn-page__path{margin-top:var(--space-6)}.learn-page__header h1{margin:0 0 var(--space-2);font-size:var(--font-size-2xl);color:var(--color-text)}.learn-page__subtitle{margin:0 0 var(--space-6);color:var(--color-text-muted);font-size:var(--font-size-sm)}.learn-panel{background:var(--color-bg);color:var(--color-text);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-5);box-shadow:var(--shadow-sm);margin-bottom:var(--space-4)}.learn-panel h2,.learn-panel h3,.learn-panel h4{margin-top:0;color:var(--color-text)}.learn-meta{color:var(--color-text-muted);font-size:var(--font-size-sm);margin:var(--space-1) 0}.learn-topic-list{margin:0;padding-left:1.4rem}.learn-toc-list{list-style:none;padding-left:0}.learn-topic-list li{margin-bottom:.5rem}.learn-topic-link{background:none;border:none;cursor:pointer;padding:0;text-align:left;color:var(--color-link);font-size:var(--font-size-sm);text-decoration:none;font:inherit;font-weight:600}.learn-topic-link:hover{color:var(--color-link-hover);text-decoration:underline;text-underline-offset:2px}.learn-topic-link--active{font-weight:700;color:var(--color-primary);cursor:default;text-decoration:none}.learn-subcategory-block{margin-bottom:1.25rem}.learn-detail-layout{display:flex;gap:1.5rem;align-items:flex-start;flex-wrap:wrap}.learn-toc{min-width:200px;max-width:240px;flex-shrink:0}.learn-content{flex:1 1;min-width:min(100%,320px)}.learn-content pre{white-space:pre-wrap;font-family:inherit;line-height:1.7;margin:0;color:var(--color-text)}.learn-nav-row{display:flex;justify-content:space-between;gap:var(--space-3);margin-top:var(--space-6);flex-wrap:wrap}.learn-topic-transition{transition:opacity .18s ease,transform .22s ease}.learn-topic-transition--enter{opacity:1;transform:translateY(0);animation:learn-topic-fade-in .28s ease}.learn-topic-transition--exit{opacity:0;transform:translateY(8px)}@keyframes learn-topic-fade-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.learn-back-btn,.learn-nav-row button{border:none;border-radius:var(--radius-sm);background:var(--color-primary);color:var(--color-on-primary);padding:var(--space-2) var(--space-4);cursor:pointer;font:inherit;font-weight:600}.learn-back-btn:hover,.learn-nav-row button:hover{background:var(--color-primary-hover)}.learn-manage-form input,.learn-manage-form select,.learn-manage-form textarea{width:100%;border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);padding:var(--space-3);font:inherit;background:var(--color-bg);color:var(--color-text)}.learn-manage-form input:focus,.learn-manage-form select:focus,.learn-manage-form textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-primary) 18%,transparent)}.learn-manage-form label{display:block;margin-bottom:var(--space-1);font-size:var(--font-size-sm);font-weight:600;color:var(--color-text)}.learn-manage-actions{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-4)}.learn-manage-actions button,.learn-manage-actions__link{border:none;border-radius:var(--radius-sm);background:var(--color-primary);color:var(--color-on-primary);padding:var(--space-2) var(--space-4);font:inherit;font-weight:600;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center}.learn-manage-actions button:hover,.learn-manage-actions__link:hover{background:var(--color-primary-hover);color:var(--color-on-primary)}.learn-topic-row{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-2);flex-wrap:wrap}.learn-topic-row button{border:none;border-radius:var(--radius-sm);padding:6px 10px;cursor:pointer;font:inherit;font-size:var(--font-size-xs);font-weight:600}.learn-topic-row__edit{background:var(--color-primary);color:var(--color-on-primary)}.learn-topic-row__edit:hover{background:var(--color-primary-hover)}.learn-topic-row__delete{background:var(--color-danger);color:var(--color-on-primary)}.learn-topic-row__delete:hover{background:#991B1B}.learn-category-chips{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-4)}.learn-category-chip--active{background:var(--color-primary);color:var(--color-on-primary);border-color:var(--color-primary)}.learn-category-tree{list-style:none;margin:0;padding:0}.learn-category-tree__item{margin-bottom:var(--space-3)}.learn-category-tree__subs{list-style:disc;margin:var(--space-2) 0 0;padding-left:1.4rem;color:var(--color-text-muted)}.category-list{list-style:none;margin:0;padding:0}.category-list__item{border:1px solid var(--color-border);border-radius:var(--radius-sm);margin-bottom:var(--space-2);overflow:hidden}.category-list__header{padding:var(--space-3);cursor:pointer;background:var(--color-bg-subtle);color:var(--color-text)}.category-list__body{padding:var(--space-3);border-top:1px solid var(--color-border)}.category-list__subcategories{margin:0;padding-left:1.2rem}.category-list__empty{color:var(--color-text-muted);font-size:var(--font-size-sm)}.learn-topic-card{border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-4);background:var(--color-bg-subtle)}.learn-topic-card h3{margin:0 0 var(--space-2)}.learn-topic-card p{margin:0;color:var(--color-text-muted);font-size:var(--font-size-sm)}.learn-category-chip{display:inline-block;padding:2px 10px;border-radius:var(--radius-full);background:var(--color-primary-light);color:var(--color-primary);font-size:var(--font-size-xs);font-weight:600;border:1px solid var(--color-primary-muted)}.learn-empty{color:var(--color-text-muted)}.learn-empty,.learn-error{font-size:var(--font-size-sm)}.learn-error{color:var(--color-danger)}.learn-success{color:var(--color-success);font-size:var(--font-size-sm);font-weight:600}@media (min-width:768px){.learn-page__header h1{font-size:var(--font-size-hero)}.learn-detail-layout{flex-wrap:nowrap}.learn-toc{min-width:220px;max-width:280px}.category-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:var(--space-3);gap:var(--space-3)}.category-list__item{margin-bottom:0}}@media (min-width:1280px){.category-list{grid-template-columns:repeat(3,minmax(0,1fr))}}.learn-toc-link{display:block;padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);color:var(--color-text-muted);text-decoration:none;font-size:var(--font-size-sm)}.learn-toc-link:hover{background:var(--color-bg-subtle);color:var(--color-text)}.learn-toc-link--active{background:var(--color-primary-light);color:var(--color-primary);font-weight:600}.learn-quiz-responses__title{margin:0 0 var(--space-4);font-size:var(--font-size-base);font-weight:700}.learn-quiz-responses__list{list-style:none;margin:0;padding:0}.learn-quiz-response{margin-bottom:var(--space-5);padding-bottom:var(--space-5);border-bottom:1px solid var(--color-border)}.learn-quiz-response:last-child{margin-bottom:0;padding-bottom:0;border-bottom:none}.learn-quiz-response__question{margin:0 0 var(--space-3);font-size:var(--font-size-base);font-weight:600;line-height:1.6;color:var(--color-text)}.learn-quiz-response__number{color:var(--color-text-muted);font-weight:700}.learn-quiz-response__line{margin:0 0 var(--space-3);font-size:var(--font-size-sm);font-weight:400;line-height:1.7;color:var(--color-text)}.learn-quiz-response__line:last-child{margin-bottom:0}.learn-quiz-response__ad{margin-top:var(--space-4);width:100%}