.arh24-kb-search-wrapper {
    max-width: 750px;
    margin: 2rem auto 0 auto;
}
.arh24-kb-search-form {
    display: flex;
    width: 100%;
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
}
.arh24-kb-search-form .search-icon-input {
    padding: 0 0.75rem 0 1.25rem;
    display: flex;
    align-items: center;
    font-size: 1.1rem;
    color: var(--text-muted);
}
.arh24-kb-search-form input[type="search"] {
    flex-grow: 1;
    padding: 1rem 1.25rem;
    font-size: var(--font-size-base);
    border: none;
    font-family: var(--font-sans);
    outline: none;
    color: var(--text-primary);
    background-color: transparent;
}
.arh24-kb-search-form input[type="search"]::placeholder {
    color: var(--text-muted);
    opacity: 0.9;
}
.arh24-kb-search-form .btn-kb-search {
    border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
    padding: 1rem 1.5rem;
    font-size: var(--font-size-base);
    border: none;
    box-shadow: none;
}
.arh24-kb-breadcrumb {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: 1rem;
    text-align: left;
}
.arh24-kb-breadcrumb a {
    color: var(--accent-primary);
    text-decoration: none;
}
.arh24-kb-breadcrumb a:hover {
    text-decoration: underline;
}
.arh24-kb-breadcrumb span.separator {
    margin: 0 0.6em;
    color: var(--border-color);
}
.arh24-kb-breadcrumb span.current-page {
    color: var(--text-primary);
    font-weight: 500;
}
.page-hero .arh24-kb-breadcrumb,
.page-hero .arh24-kb-breadcrumb a {
    color: #a7b3c2;
}
.page-hero .arh24-kb-breadcrumb a:hover {
    color: #fff;
}
.page-hero .arh24-kb-breadcrumb span.separator {
    color: rgba(255, 255, 255, 0.3);
}
.page-hero .arh24-kb-breadcrumb span.current-page {
    color: #fff;
    font-weight: 500;
}
.arh24-kb-article-list-item {
    background-color: var(--bg-card);
    padding: 1.5rem 1.75rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color-light);
    border-left: 4px solid var(--accent-primary);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}
.arh24-kb-article-list-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-left-color: var(--accent-primary-hover);
}
.arh24-kb-article-list-item .article-icon {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-top: 0.25rem;
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}
.arh24-kb-article-list-item .article-content-wrapper {
    flex-grow: 1;
}
.arh24-kb-article-list-item .article-content-wrapper h3 {
    font-size: var(--font-size-xl);
    margin-bottom: 0.35rem;
    line-height: var(--line-height-heading);
}
.arh24-kb-article-list-item .article-content-wrapper h3 a {
    color: var(--accent-primary-hover);
    text-decoration: none;
}
.arh24-kb-article-list-item .article-content-wrapper h3 a:hover {
    text-decoration: underline;
}
.arh24-kb-article-list-item .article-content-wrapper p.excerpt {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.6;
}
.arh24-kb-article-list-item .article-content-wrapper .read-more-kb {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--accent-primary);
    text-decoration: none;
}
.arh24-kb-article-list-item .article-content-wrapper .read-more-kb:hover {
    text-decoration: underline;
}
.arh24-kb-article-list-item .article-content-wrapper .read-more-kb i {
    margin-left: 0.25em;
    transition: transform 0.2s ease-out;
}
.arh24-kb-article-list-item .article-content-wrapper .read-more-kb:hover i {
    transform: translateX(3px);
}
.arh24-kb-article-header {
    text-align: center;
}
.arh24-kb-article-header h1 {
    font-size: clamp(1.8rem, 4.5vw, 2.6rem);
    color: var(--accent-primary);
    margin-bottom: 1rem;
    line-height: var(--line-height-heading);
    display: flex;
    align-items: center;
    justify-content: center;
}
.arh24-kb-article-header h1 i.title-icon {
    margin-right: 0.5em;
    color: inherit;
    font-size: 0.9em;
}
.arh24-kb-article-meta-single-line {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px dashed var(--border-color-light);
    text-align: center;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1.5rem;
}
.arh24-kb-article-meta-single-line span {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
}
.arh24-kb-article-meta-single-line i {
    color: var(--accent-primary);
}
.arh24-kb-article-meta-single-line strong {
    color: var(--text-primary);
    font-weight: 500;
}
.arh24-kb-article-content-main {
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--text-secondary);
}
.arh24-kb-article-content-main h2 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--text-primary);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color-light);
    display: flex;
    align-items: center;
    line-height: var(--line-height-heading);
}
.arh24-kb-article-content-main h3 {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    color: var(--text-primary);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    line-height: var(--line-height-heading);
}
.arh24-kb-article-content-main i.text-icon {
    margin-right: 0.5em;
    color: var(--accent-primary);
    font-size: 0.9em;
}
.arh24-kb-article-content-main p {
    margin-bottom: 1.25rem;
}
.arh24-kb-article-content-main ul, .arh24-kb-article-content-main ol {
    margin-bottom: 1.25rem;
    padding-left: 1.75rem;
}
.arh24-kb-article-content-main ul li, .arh24-kb-article-content-main ol li {
    margin-bottom: 0.5rem;
}
.arh24-kb-article-content-main blockquote {
    border-left: 4px solid var(--accent-primary);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--text-muted);
    background-color: var(--accent-primary-soft);
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}
.arh24-kb-article-content-main blockquote p:last-child { margin-bottom: 0; }
.arh24-kb-article-content-main figure { margin: 1.5rem 0; text-align: center; }
.arh24-kb-article-content-main img { max-width: 100%; height: auto; border-radius: var(--border-radius-md); box-shadow: var(--shadow-sm); border: 1px solid var(--border-color-light); }
.arh24-kb-article-content-main figcaption {
    font-size: var(--font-size-xs);
    color: var(--text-muted); margin-top: 0.5rem; font-style: italic;
}
.arh24-kb-article-content-main a { color: var(--accent-primary-hover); text-decoration: underline; text-decoration-color: var(--accent-primary-soft); font-weight: 500; }
.arh24-kb-article-content-main a:hover { text-decoration-color: var(--accent-primary-hover); }
.arh24-kb-article-content-main code { background-color: var(--accent-primary-soft); color: var(--accent-primary-hover); padding: 0.15em 0.4em; border-radius: var(--border-radius-sm); font-family: var(--font-mono); font-size: 0.9em;}
.arh24-kb-article-content-main pre { background-color: var(--bg-dark-accent); color: var(--text-light); padding: 1.25rem; border-radius: var(--border-radius-md); overflow-x: auto; font-family: var(--font-mono); font-size: var(--font-size-sm); margin: 1.5rem 0; position: relative; }
.arh24-kb-article-content-main pre code { background-color: transparent; color: inherit; padding:0; font-size: inherit; }
.arh24-kb-article-feedback {
    margin-top: 2.5rem;
    padding: 1.5rem;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-md);
    text-align: center;
    border-top: 1px solid var(--border-color-light);
}
.arh24-kb-article-feedback p {
    margin-bottom: 0.75rem;
    font-weight: 500;
}
.arh24-kb-content-section { padding-top: 2.5rem; padding-bottom: 3rem; }
.arh24-kb-layout-container { display: grid; grid-template-columns: 1fr; gap: 2.5rem; }
@media (min-width: 992px) {
    .arh24-kb-layout-container { grid-template-columns: 1fr 300px; }
    .arh24-kb-sidebar { order: 2; }
    .arh24-kb-main-content { order: 1; }
}
.arh24-kb-widget { 
    background-color: var(--bg-card); 
    padding: 1.75rem; 
    border-radius: var(--border-radius-lg); 
    margin-bottom: 2rem; 
    box-shadow: var(--shadow-md); 
    border: 1px solid var(--border-color-light); 
    border-left: 4px solid var(--accent-primary);
    transition: var(--transition-smooth);
}
.arh24-kb-widget:hover {
    box-shadow: var(--shadow-lg);
    border-left-color: var(--accent-primary-hover);
    transform: translateY(-2px);
}
.arh24-kb-widget-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    line-height: var(--line-height-heading);
    margin-top:0;
}
.arh24-kb-widget ul { list-style: none; padding: 0; margin: 0; }
.arh24-kb-widget ul li { margin-bottom: 0.25rem; }
.arh24-kb-widget ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    padding: 0.4rem 0.25rem;
    transition: color 0.2s ease, background-color 0.2s ease;
    border-radius:var(--border-radius-sm);
}
.arh24-kb-widget ul li a:hover { color: var(--accent-primary); background-color: var(--accent-primary-soft); }
.arh24-kb-widget ul li a i.list-icon { margin-right: 0.75em; color: var(--accent-primary); font-size: 0.9em; width:16px; text-align:center;}
.arh24-kb-category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3.5rem 1.75rem;
    margin-top: 3.5rem;
    margin-bottom: 3rem;
}
.arh24-kb-category-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color-light);
    border-left: 4px solid var(--accent-primary);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem 1.75rem 2rem 1.75rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    margin-top: 35px;
}
.arh24-kb-category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-left-color: var(--accent-primary-hover);
}
.arh24-kb-category-card .category-icon {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-color: var(--bg-card);
    border: 5px solid var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: var(--accent-primary);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}
.arh24-kb-category-card:hover .category-icon {
    background-color: var(--accent-primary);
    color: var(--text-on-accent);
}
.arh24-kb-category-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: 0.5rem;
    margin-top: 0;
}
.arh24-kb-category-card p.cat-desc {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 0;
    flex-grow: 1;
}
.arh24-kb-category-card .article-count {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: 1rem;
    background-color: var(--bg-secondary);
    padding: 0.2rem 0.5rem;
    border-radius: var(--border-radius-sm);
}
.arh24-kb-section-title {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--accent-primary);
    display: inline-block;
    margin-top: 0;
}