.vubp-single {
    background: #f7f8fb;
    padding: 40px 0 80px;
    color: #111111;
}

.vubp-single-hero {
    max-width: 1200px;
    margin: 0 auto 30px;
    padding: 0 20px;
}

.vubp-single-hero img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    border-radius: 28px;
}

.vubp-single-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 40px;
}

.vubp-single-title {
    font-size: 36px;
    line-height: 1.2;
    margin: 0 0 12px;
}

.vubp-single-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    color: #6b7280;
    font-size: 14px;
    margin-bottom: 24px;
}

.vubp-single-content {
    font-size: 17px;
    line-height: 1.8;
    color: #1f2937;
}

.vubp-single-content h2,
.vubp-single-content h3 {
    margin-top: 32px;
    margin-bottom: 16px;
    color: #111111;
}

.vubp-author-box {
    margin-top: 40px;
    padding: 24px;
    background: #ffffff;
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    display: flex;
    gap: 18px;
    align-items: center;
}

.vubp-author-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.vubp-author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.vubp-share {
    margin: 28px 0;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.vubp-share a {
    text-decoration: none;
    font-size: 14px;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid #e5e7eb;
    color: #111111;
    background: #ffffff;
}

.vubp-toc {
    background: #ffffff;
    border-radius: 18px;
    padding: 20px 24px;
    border: 1px solid #e5e7eb;
    margin: 24px 0;
}

.vubp-toc h3 {
    margin-top: 0;
}

.vubp-toc ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.vubp-toc li {
    margin: 8px 0;
}

.vubp-toc a {
    text-decoration: none;
    color: #1f2937;
}

.vubp-toc-level-3 {
    padding-left: 16px;
    font-size: 14px;
}

.vubp-related-posts {
    margin-top: 40px;
}

.vubp-related-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.vubp-related-card {
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.vubp-related-thumb img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    display: block;
}

.vubp-related-content {
    padding: 14px 16px 18px;
}

.vubp-related-content a {
    text-decoration: none;
    color: #111111;
    font-weight: 600;
}

.vubp-sidebar {
    position: sticky;
    top: 90px;
    align-self: start;
    display: grid;
    gap: 24px;
}

.vubp-sidebar-box {
    background: #ffffff;
    border-radius: 18px;
    padding: 20px 22px;
    border: 1px solid #e5e7eb;
}

@media (max-width: 1024px) {
    .vubp-single-container {
        grid-template-columns: minmax(0, 1fr);
    }

    .vubp-sidebar {
        position: static;
    }

    .vubp-related-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 767px) {
    .vubp-single-hero img {
        height: 260px;
    }

    .vubp-single-title {
        font-size: 28px;
    }

    .vubp-related-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}