* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', system-ui, sans-serif; }
        
        /* Banner Stage Outer Wrapper */
        .banner-carousel-stage {
            position: relative;
            max-width: 1100px;
            height: 480px;
            margin: 40px auto;
            overflow: hidden;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            background: #0f172a;
        }

        /* Slide Track Assembly */
        .carousel-composite-track {
            display: flex;
            width: 300%;
            height: 100%;
            transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        }

        /* Split Layout Container */
        .product-billboard-slide {
            width: 33.333%;
            height: 100%;
            display: flex;
            position: relative;
        }

        /* Left Column: Text & Marketing Details */
        .billboard-text-zone {
            width: 50%;
            height: 100%;
            background: #0f172a;
            padding: 50px 60px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            z-index: 5;
        }

        /* Right Column: Dedicated Image Section */
        .billboard-image-zone {
            width: 50%;
            height: 100%;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        /* Custom slide background variations for text panels */
        .panel-stationery { background: #0f172a; }
        .panel-gourmet { background: #221510; }
        .panel-perfume { background: #0b0f19; }

        /* Typography & Element Styling */
        .category-badge {
            display: inline-block;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: rgba(255, 255, 255, 0.1);
            padding: 6px 14px;
            border-radius: 30px;
            margin-bottom: 16px;
            font-weight: 600;
            color: #f59e0b;
            align-self: flex-start;
        }

        .billboard-text-zone h2 {
            font-size: 2.4rem;
            margin-bottom: 14px;
            font-weight: 800;
            line-height: 1.2;
            color: #f8fafc;
        }

        .billboard-text-zone p {
            font-size: 1rem;
            margin-bottom: 22px;
            opacity: 0.8;
            line-height: 1.6;
            color: #cbd5e1;
        }

        /* Business Contact Infrastructure */
        .merchant-footer-bar {
            margin-top: auto;
            font-size: 0.85rem;
            border-top: 1px solid rgba(255,255,255,0.15);
            padding-top: 16px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .merchant-footer-bar span {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #94a3b8;
        }

        .conversion-action-link {
            display: inline-block;
            padding: 12px 24px;
            background-color: #f59e0b; /* Golden Amber Theme */
            color: #0f172a;
            text-decoration: none;
            font-weight: 700;
            border-radius: 6px;
            box-shadow: 0 4px 12px rgba(245,158,11,0.25);
            transition: all 0.25s ease;
            align-self: flex-start;
            margin-bottom: 20px;
        }

        .conversion-action-link:hover { 
            background-color: #d97706;
            transform: translateY(-1px);
        }

        /* Directional Control Arrows */
        .carousel-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(8px);
            color: #ffffff;
            border: 1px solid rgba(255,255,255,0.15);
            width: 44px;
            height: 44px;
            border-radius: 50%;
            font-size: 1.1rem;
            cursor: pointer;
            z-index: 10;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.3s;
        }
        .carousel-arrow:hover { background: rgba(255,255,255,0.25); }
        .arrow-prev { left: 15px; }
        .arrow-right { right: 15px; }

        /* Slide Position Indicators */
        .navigation-beads {
            position: absolute;
            bottom: 25px;
            left: 60px;
            display: flex;
            gap: 10px;
            z-index: 10;
        }

        .bead {
            width: 10px;
            height: 10px;
            background: rgba(255,255,255,0.2);
            border-radius: 50%;
            cursor: pointer;
            transition: background 0.3s, transform 0.3s;
        }

        .bead.active { 
            background: #f59e0b; 
            transform: scale(1.2);
        }