Related Posts Box Styles 
.srpi-related-posts-box {
    margin 30px 0;
    padding 25px;
    background #f8f9fa;
    border-left 4px solid #0073aa;
    border-radius 4px;
    clear both;
}

.srpi-related-posts-box .srpi-title {
    margin 0 0 20px 0;
    padding-bottom 10px;
    border-bottom 2px solid #e0e0e0;
    font-size 1.3em;
    color #23282d;
    font-weight 600;
}

.srpi-posts-grid {
    display grid;
    grid-template-columns repeat(auto-fit, minmax(250px, 1fr));
    gap 20px;
}

.srpi-post-item {
    display flex;
    flex-direction column;
    background #fff;
    border-radius 6px;
    overflow hidden;
    box-shadow 0 2px 4px rgba(0,0,0,0.1);
    transition transform 0.2s ease, box-shadow 0.2s ease;
}

.srpi-post-itemhover {
    transform translateY(-2px);
    box-shadow 0 4px 8px rgba(0,0,0,0.15);
}

.srpi-post-thumbnail {
    width 100%;
    height 150px;
    overflow hidden;
}

.srpi-post-thumbnail img {
    width 100%;
    height 100%;
    object-fit cover;
    transition transform 0.3s ease;
}

.srpi-post-itemhover .srpi-post-thumbnail img {
    transform scale(1.05);
}

.srpi-post-content {
    padding 15px;
    flex-grow 1;
    display flex;
    flex-direction column;
}

.srpi-post-title {
    margin 0 0 10px 0;
    font-size 1.1em;
    line-height 1.4;
}

.srpi-post-title a {
    color #23282d;
    text-decoration none;
    transition color 0.2s ease;
}

.srpi-post-title ahover {
    color #0073aa;
}

.srpi-post-excerpt {
    margin 0 0 10px 0;
    font-size 0.9em;
    color #666;
    line-height 1.5;
    flex-grow 1;
}

.srpi-post-date {
    font-size 0.8em;
    color #999;
    font-style italic;
}

 Responsive Design 
@media (max-width 600px) {
    .srpi-posts-grid {
        grid-template-columns 1fr;
    }
    
    .srpi-related-posts-box {
        padding 15px;
    }
}

 Dark mode support (if theme supports) 
@media (prefers-color-scheme dark) {
    .srpi-related-posts-box {
        background #2c2c2c;
        border-left-color #4a9fd4;
    }
    
    .srpi-related-posts-box .srpi-title {
        color #fff;
        border-bottom-color #444;
    }
    
    .srpi-post-item {
        background #333;
    }
    
    .srpi-post-title a {
        color #fff;
    }
    
    .srpi-post-excerpt {
        color #aaa;
    }
}