.xd-arc-hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 60%, #0f3460 100%);
    padding: 28px 0 22px;
    margin-bottom: 32px;
}
.xd-arc-title {
    font-family: 'Be Vietnam Pro', sans-serif;
    color: #fff;
    font-size: 26px;
    font-weight: 800;
    margin: 8px 0 0;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.xd-breadcrumb {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: 13px;
    color: rgba(255,255,255,.65);
}
.xd-breadcrumb a { color: rgba(255,255,255,.8); text-decoration: none; }
.xd-breadcrumb a:hover { color: #fff; }
.xd-bc-sep { margin: 0 6px; }

.xd-arc-layout {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}
.xd-arc-main { flex: 1; min-width: 0; }
.xd-arc-sidebar {
    flex: 0 0 300px;
    position: sticky;
    top: 24px;
    align-self: flex-start;
    display: flex;
    flex-direction: column;
    max-height: calc(100vh - 48px);
    overflow-y: auto;
}

.xd-arc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    margin-bottom: 32px;
}

.xd-arc-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,.07);
    display: flex;
    flex-direction: column;
    transition: box-shadow .25s, transform .25s;
}
.xd-arc-card:hover {
    box-shadow: 0 8px 28px rgba(0,0,0,.13);
    transform: translateY(-3px);
}

.xd-arc-thumb {
    display: block;
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}
.xd-arc-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .4s;
}
.xd-arc-card:hover .xd-arc-thumb img { transform: scale(1.06); }

.xd-arc-date-badge {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background: #e31b23;
    color: #fff;
    border-radius: 6px;
    text-align: center;
    padding: 4px 10px;
    line-height: 1;
    font-family: 'Be Vietnam Pro', sans-serif;
}
.xd-arc-day   { display: block; font-size: 20px; font-weight: 800; }
.xd-arc-month { display: block; font-size: 11px; text-transform: uppercase; opacity: .9; margin-top: 1px; }

.xd-arc-body { padding: 16px; flex: 1; display: flex; flex-direction: column; gap: 8px; }

.xd-arc-cat {
    font-size: 11px;
    font-weight: 700;
    color: #e31b23;
    text-transform: uppercase;
    letter-spacing: .5px;
    text-decoration: none;
}
.xd-arc-cat:hover { text-decoration: underline; }

.xd-arc-card-title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.45;
    margin: 0;
    color: #111;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.xd-arc-card-title a { color: inherit; text-decoration: none; }
.xd-arc-card:hover .xd-arc-card-title a { color: #e31b23; }

.xd-arc-excerpt {
    font-size: 13px;
    color: #666;
    line-height: 1.55;
    margin: 0;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.xd-arc-readmore {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    font-weight: 700;
    color: #e31b23;
    text-decoration: none;
    margin-top: auto;
}
.xd-arc-readmore svg { width: 14px; height: 14px; stroke: #e31b23; stroke-width: 2.5; fill: none; transition: transform .2s; }
.xd-arc-readmore:hover svg { transform: translateX(3px); }

.xd-arc-pagination { margin: 10px 0 40px; }
.xd-arc-pagination .page-numbers {
    display: inline-block;
    padding: 7px 14px;
    border-radius: 6px;
    background: #f5f5f5;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    margin: 2px;
    transition: background .2s, color .2s;
}
.xd-arc-pagination .page-numbers.current,
.xd-arc-pagination .page-numbers:hover { background: #e31b23; color: #fff; }

.xd-single-page { padding: 0 0 60px; }

.xd-single-breadcrumb { padding: 18px 0 0; font-size: 13px; color: #888; }
.xd-single-breadcrumb a { color: #555; text-decoration: none; }
.xd-single-breadcrumb a:hover { color: #e31b23; }

.xd-single-layout {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    margin-top: 20px;
}
.xd-single-main    { flex: 1; min-width: 0; }
.xd-single-sidebar {
    flex: 0 0 300px;
    position: sticky;
    top: 24px;
    align-self: flex-start;
    display: flex;
    flex-direction: column;
    max-height: calc(100vh - 48px);
    overflow-y: auto;
}

.xd-single-cat-label {
    display: inline-block;
    background: #e31b23;
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .5px;
    padding: 3px 12px;
    border-radius: 4px;
    text-decoration: none;
    margin-bottom: 12px;
}

.xd-single-title {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 800;
    color: #111;
    line-height: 1.35;
    margin: 0 0 14px;
}

.xd-single-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    color: #888;
    padding-bottom: 16px;
    border-bottom: 2px solid #f0f0f0;
    margin-bottom: 20px;
    font-family: 'Be Vietnam Pro', sans-serif;
}
.xd-meta-item { display: flex; align-items: center; gap: 5px; }
.xd-meta-item svg { width: 15px; height: 15px; fill: #bbb; }

.xd-single-featured-img {
    margin-bottom: 24px;
    border-radius: 10px;
    overflow: hidden;
}
.xd-featured-img { width: 100%; height: auto; display: block; }

.xd-single-content {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: 16px;
    color: #333;
    line-height: 1.8;
}
.xd-single-content h2 {
    font-size: 22px;
    font-weight: 800;
    color: #111;
    margin: 36px 0 14px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e31b23;
}
.xd-single-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: #222;
    margin: 26px 0 10px;
}
.xd-single-content h4 { font-size: 16px; font-weight: 700; color: #333; margin: 20px 0 8px; }
.xd-single-content p  { margin: 0 0 16px; }
.xd-single-content img { max-width: 100%; height: auto; border-radius: 8px; margin: 12px 0; display: block; }
.xd-single-content table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.xd-single-content table th { background: #e31b23; color: #fff; padding: 10px 14px; text-align: left; font-weight: 700; }
.xd-single-content table td { padding: 9px 14px; border-bottom: 1px solid #eee; }
.xd-single-content table tr:nth-child(even) td { background: #fafafa; }
.xd-single-content blockquote { border-left: 4px solid #e31b23; background: #fff5f5; padding: 14px 20px; margin: 20px 0; border-radius: 0 8px 8px 0; font-style: italic; color: #555; }
.xd-single-content ul, .xd-single-content ol { padding-left: 24px; margin: 0 0 16px; }
.xd-single-content li { margin-bottom: 6px; }
.xd-single-content a { color: #e31b23; }
.xd-single-content a:hover { text-decoration: underline; }
.xd-single-content strong { font-weight: 700; color: #111; }

.xd-single-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin: 28px 0 20px;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
    font-family: 'Be Vietnam Pro', sans-serif;
}
.xd-single-tags svg { width: 16px; height: 16px; fill: #aaa; }
.xd-tag-pill {
    display: inline-block;
    background: #f5f5f5;
    color: #555;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: background .2s, color .2s;
}
.xd-tag-pill:hover { background: #e31b23; color: #fff; }

.xd-share-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    padding: 16px 0;
    font-family: 'Be Vietnam Pro', sans-serif;
}
.xd-share-label { font-size: 14px; font-weight: 700; color: #333; }
.xd-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
    color: #fff;
    transition: opacity .2s;
}
.xd-share-btn:hover { opacity: .85; }
.xd-share-btn svg { width: 16px; height: 16px; fill: #fff; }
.xd-share-fb   { background: #1877f2; }
.xd-share-zalo { background: #0068ff; }

.xd-related-posts { margin-top: 36px; }
.xd-related-mobile { display: none; }
.xd-related-title { font-size: 18px; font-weight: 800; color: #111; margin-bottom: 16px; font-family: 'Be Vietnam Pro', sans-serif; }
.xd-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.xd-related-card { text-decoration: none; color: #222; display: block; }
.xd-related-thumb { aspect-ratio: 16/10; overflow: hidden; border-radius: 8px; margin-bottom: 8px; }
.xd-related-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s; }
.xd-related-card:hover .xd-related-thumb img { transform: scale(1.05); }
.xd-related-card-title { font-size: 13px; font-weight: 600; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.xd-related-card:hover .xd-related-card-title { color: #e31b23; }

.xd-sb-block {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0,0,0,.07);
    padding: 20px;
    margin-bottom: 20px;
    font-family: 'Be Vietnam Pro', sans-serif;
}

.xd-sb-title {
    font-size: 14px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: #111;
    margin: 0 0 16px;
    display: flex;
    align-items: center;
}
.xd-sb-title span {
    border-left: 4px solid #e31b23;
    padding-left: 10px;
}

.xd-sb-recent-item {
    display: flex;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    padding: 10px 0;
    border-bottom: 1px solid #f5f5f5;
}
.xd-sb-recent-item:last-child { border-bottom: none; }
.xd-sb-recent-thumb {
    flex: 0 0 80px;
    height: 60px;
    border-radius: 6px;
    overflow: hidden;
}
.xd-sb-recent-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s; }
.xd-sb-recent-item:hover .xd-sb-recent-thumb img { transform: scale(1.06); }
.xd-sb-recent-body { flex: 1; }
.xd-sb-recent-title {
    font-size: 13px;
    font-weight: 600;
    color: #222;
    line-height: 1.4;
    margin: 0 0 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.xd-sb-recent-item:hover .xd-sb-recent-title { color: #e31b23; }
.xd-sb-recent-date { font-size: 11px; color: #aaa; }

.xd-sb-cta {
    background: linear-gradient(135deg, #1a1a2e, #0f3460) !important;
    text-align: center;
    color: #fff;
    margin-top: auto;
    order: 99;
}
.xd-sb-cta-avatar { width:80px;height:80px;border-radius:50%;overflow:hidden;margin:0 auto 10px;border:3px solid rgba(255,255,255,.4); }
.xd-sb-cta-avatar img { width:100%;height:100%;object-fit:cover;display:block; }
.xd-sb-cta-role { font-size:15px;font-weight:700;color:#fff;margin:0 0 4px; }
.xd-sb-cta-dealer { font-size:12px;color:rgba(255,255,255,.75);margin:0 0 14px; }
.xd-sb-cta-icon { font-size: 36px; margin-bottom: 10px; }
.xd-sb-cta-text { font-size: 14px; color: rgba(255,255,255,.9); line-height: 1.5; margin: 0 0 16px; }
.xd-sb-cta-text strong { color: #fff; }
.xd-sb-cta-btn {
    display: block;
    background: #e31b23;
    color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 800;
    margin-bottom: 8px;
    transition: background .2s;
}
.xd-sb-cta-btn:hover { background: #c41019; }
.xd-sb-cta-btn--zalo { background: #0068ff !important; }
.xd-sb-cta-btn--zalo:hover { background: #005ce6 !important; }

.xd-sb-cta-sticky { transition: box-shadow .3s; }
.xd-sb-is-sticky { position: sticky; top: 80px; }

@media (max-width: 1024px) {
    .xd-arc-grid { grid-template-columns: repeat(2, 1fr); }
    .xd-arc-sidebar, .xd-single-sidebar { flex: 0 0 260px; }
}

@media (max-width: 768px) {

    .xd-arc-layout { flex-direction: column; }
    .xd-arc-sidebar { display: none; }
    .xd-arc-grid { grid-template-columns: 1fr; gap: 16px; }
    .xd-arc-title { font-size: 20px; }

    .xd-single-layout { flex-direction: column; }
    .xd-single-sidebar { display: none; }
    .xd-related-mobile { display: block; }
    .xd-related-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .xd-single-title { font-size: 20px; }
    .xd-single-content h2 { font-size: 18px; }
    .xd-single-content h3 { font-size: 16px; }
    .xd-single-content { font-size: 15px; }
}

@media (max-width: 480px) {
    .xd-related-grid { grid-template-columns: 1fr; }
}