.guide-article {
    max-width: 850px;
    margin: 0 auto;
}
.guide-header {
    text-align: center;
    margin-bottom: 40px;
    border-bottom: 2px solid var(--border-slate);
    padding-bottom: 30px;
}

.guide-header p {
    font-size: 2rem;
    color: #475569;
    margin: 0;
}
.contain .info-callout {
    background-color: #f8fafc;
    border-left: 4px solid #3b82f6;
    padding: 20px;
    margin: 25px 0;
    border-radius: 0 8px 8px 0;
}

.contain .info-callout p {
    margin: 0;
    font-size: 1.5rem;
    font-style: italic;
}


.guide-article ul, .guide-article ol {
    padding-left: 20px;
    margin-bottom: 25px;
}
.guide-article li {
    margin-bottom: 12px;
    font-size: 1.5rem;
}
.pillar-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 30px;
}
.pillar-card {
    background: #ffffff;
    border: 1px solid var(--border-slate);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.pillar-card h4 {
    margin: 0 0 10px 0;
    color: var(--primary-dark);
    font-size: 2rem;
    font-weight: 600;
}
@media (max-width: 640px) {
    .guide-header h1 { font-size: 2rem; }
    .pillar-matrix { grid-template-columns: 1fr; }
}