/* CSS Scoped for Independent Layouts */
    :root {
        --hifu-primary: #1b4d7e; /* Medical Navy Blue */
        --hifu-accent: #27ae60;  /* Success Green for ROI */
        --hifu-gray: #f4f7f9;
        --hifu-border: #dcdfe6;
        --hifu-text: #2c3e50;
    }

    .hifu-article {
        font-family: Arial, sans-serif;
        line-height: 1.7;
        color: var(--hifu-text);
        max-width: 1920px;
        margin: 0 auto;
        padding: 20px;
        background: #fff;
    }

    /* Typography */
    h1 { font-size: 2.2rem; color: var(--hifu-primary); text-align: center; margin-bottom: 30px; line-height: 1.3; }
    h2 { font-size: 1.8rem; color: var(--hifu-primary); margin-top: 40px; border-bottom: 2px solid var(--hifu-gray); padding-bottom: 10px; }
    h3 { font-size: 1.4rem; color: #34495e; margin-top: 30px; }

    p { margin-bottom: 20px; }
    
    /* Comparison Component */
    .hifu-comparison-box {
        display: flex;
        gap: 20px;
        margin: 30px 0;
    }

    .hifu-card {
        flex: 1;
        padding: 25px;
        border-radius: 8px;
        border: 1px solid var(--hifu-border);
        background: var(--hifu-gray);
    }

    .hifu-card.premium { border-top: 4px solid var(--hifu-primary); background: #fff; box-shadow: 0 4px 15px rgba(0,0,0,0.05); }

    .hifu-card h4 { margin-top: 0; color: var(--hifu-primary); font-size: 1.2rem; }

    .hifu-badge {
        display: inline-block;
        padding: 3px 10px;
        background: var(--hifu-primary);
        color: #fff;
        font-size: 0.8rem;
        border-radius: 4px;
        margin-bottom: 10px;
    }

    /* ROI Section */
    .roi-highlight {
        background: #eef9f0;
        border-left: 5px solid var(--hifu-accent);
        padding: 20px;
        margin: 30px 0;
    }

    /* Images */
    .hifu-img-container { margin: 30px 0; text-align: center; }
    .hifu-img-container img { max-width: 100%; height: auto; border-radius: 4px; border: 1px solid #eee; }
    .hifu-img-caption { font-size: 0.9rem; color: #7f8c8d; margin-top: 10px; font-style: italic; }

    /* List styling */
    .hifu-features { list-style: none; padding: 0; }
    .hifu-features li { padding: 10px 0; border-bottom: 1px solid #eee; position: relative; padding-left: 25px; }
    .hifu-features li::before { content: "✓"; position: absolute; left: 0; color: var(--hifu-accent); font-weight: bold; }

    /* Responsive */
    @media (max-width: 768px) {
        .hifu-comparison-box { flex-direction: column; }
        h1 { font-size: 1.8rem; }
    }