/* ── Variables del Design System ACAAI ── */
        :root {
            --primary-red: #B71C1C;
            --dark-text: #111111;
            --light-bg: #ffffff;
            --nav-container-bg: #F4F4F4;
            --active-bg: #FCE4E4;
        }
 
     
 
        /* ============================================
           SECCIÓN ALIANZA ESTRATÉGICA
           ============================================ */
        .acaai-alianza-section {
            background-color: var(--light-bg);
            position: relative;
            overflow: hidden;
            padding: 90px 0;
        }
 
        /* Fondo decorativo: imagen científica (DNA, células) */
        .alianza-bg-pattern {
            position: absolute;
            inset: 0;
            /* ↓ REEMPLAZA esta ruta con tu imagen de fondo real */
            background-image: url('../img/fondo-cientifico.webp');
            background-size: cover;
            background-position: center right;
            
            z-index: 0;
        }
 
        /* Degradado lateral para que el fondo no compita con el texto */
        .alianza-bg-pattern::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, #ffffff 35%, transparent 100%);
        }
 
        .alianza-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
            z-index: 1;
        }
 
        /* ── Layout principal: dos columnas ── */
        .alianza-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }
 
        /* ── COLUMNA IZQUIERDA (Texto) ── */
        .alianza-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary-red);
            text-transform: uppercase;
            letter-spacing: 2.5px;
            margin-bottom: 20px;
        }
 
        .alianza-tagline::before {
            content: '';
            display: block;
            width: 28px;
            height: 2px;
            background-color: var(--primary-red);
            border-radius: 2px;
        }
 
        .alianza-main-title {
            font-size: 46px;
            font-weight: 800;
            color: var(--dark-text);
            line-height: 1.1;
            margin-bottom: 12px;
        }
 
        /* Línea decorativa roja bajo el título */
        .alianza-title-underline {
            width: 48px;
            height: 3px;
            background-color: var(--primary-red);
            border-radius: 2px;
            margin-bottom: 28px;
            position: relative;
        }
 
        .alianza-title-underline::after {
            content: '';
            position: absolute;
            left: 56px;
            top: 0;
            width: 8px;
            height: 3px;
            background-color: var(--primary-red);
            border-radius: 2px;
            opacity: 0.4;
        }
 
        .alianza-description {
            font-size: 15.5px;
            color: #444;
            line-height: 1.75;
            margin-bottom: 14px;
        }
 
        .alianza-description:last-of-type {
            margin-bottom: 36px;
        }
 
        .alianza-description strong {
            color: var(--primary-red);
            font-weight: 700;
        }
 
        /* ── Botón CTA (mismo que el design system) ── */
        .btn-acaai-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: var(--primary-red);
            color: white;
            border: none;
            border-radius: 12px;
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            transition: all 0.3s;
            box-shadow: 0 4px 12px rgba(183, 28, 28, 0.35);
            text-decoration: none;
            cursor: pointer;
        }
 
        .btn-acaai-cta:hover {
            background-color: #8D0E0E;
            transform: translateY(-2px);
            box-shadow: 0 7px 18px rgba(183, 28, 28, 0.5);
            color: white;
        }
 
        .alianza-redirect-note {
            margin-top: 12px;
            font-size: 12px;
            color: #999;
            display: flex;
            align-items: center;
            gap: 5px;
        }
 
        /* ── COLUMNA DERECHA (Tarjeta de Logos) ── */
        .alianza-card {
            background: var(--light-bg);
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
            padding: 44px 40px 36px;
            border: 1px solid rgba(0, 0, 0, 0.05);
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 0;
        }
 
        /* ── Logos lado a lado con separador ── */
        .alianza-logos-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0;
            width: 100%;
            margin-bottom: 32px;
        }
 
        /* Contenedor individual de cada logo */
        .alianza-logo-box {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
        }
 
        /* ↓ REEMPLAZA con tus imágenes reales */
        .alianza-logo-img {
            max-height: 90px;
            max-width: 100%;
            width: auto;
            object-fit: contain;
            display: block;
        }
 
        /* Placeholder cuando NO hay imagen cargada */
        .logo-placeholder {
            width: 100%;
            min-height: 90px;
            background: var(--nav-container-bg);
            border-radius: 10px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: #999;
            font-size: 12px;
            font-weight: 600;
            gap: 6px;
            border: 2px dashed #ddd;
            padding: 16px;
        }
 
        .logo-placeholder i {
            font-size: 28px;
            color: #ccc;
        }
 
        /* Separador vertical entre logos */
        .alianza-logo-divider {
            width: 1px;
            height: 80px;
            background: linear-gradient(to bottom, transparent, #e0e0e0, transparent);
            flex-shrink: 0;
        }
 
        /* ── Texto de unión ── */
        .alianza-union-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark-text);
            line-height: 1.5;
            margin-bottom: 30px;
        }
 
        .alianza-union-text em {
            font-style: normal;
            color: var(--primary-red);
        }
 
        /* ── 4 íconos de beneficios ── */
        .alianza-benefits-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            width: 100%;
            border-top: 1px solid #f0f0f0;
            padding-top: 28px;
        }
 
        .alianza-benefit-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 16px 12px;
            transition: background 0.2s;
            border-radius: 12px;
        }
 
        .alianza-benefit-item:hover {
            background: var(--active-bg);
        }
 
        .alianza-benefit-icon {
            font-size: 30px;
            color: var(--primary-red);
            margin-bottom: 10px;
            display: block;
        }
 
        .alianza-benefit-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--dark-text);
            line-height: 1.35;
        }
 
        /* ─────────────────────────────────
           RESPONSIVE
        ───────────────────────────────── */
        @media (max-width: 991px) {
            .acaai-alianza-section { padding: 70px 0; }
            .alianza-grid {
                grid-template-columns: 1fr;
                gap: 48px;
            }
            .alianza-main-title { font-size: 36px; }
            .alianza-card { padding: 36px 28px 28px; }
        }
 
        @media (max-width: 767px) {
            .acaai-alianza-section { padding: 56px 0; }
            .alianza-main-title { font-size: 30px; }
            .alianza-description { font-size: 14.5px; }
            .alianza-union-text { font-size: 16px; }
            .alianza-logo-box { padding: 10px 16px; }
            .alianza-card { padding: 28px 20px 24px; }
        }
 
        @media (max-width: 480px) {
            .alianza-benefits-grid { grid-template-columns: 1fr 1fr; }
            .alianza-benefit-label { font-size: 12px; }
        }