.kefu-service-panel { position: fixed; right: 0px; top: 50%; transform: translateY(-50%); display: flex; flex-direction: column; align-items: center; z-index: 9999; background: linear-gradient(135deg, #2269d1 0%, #2269d1 100%); border-radius: 20px 0px 0px 20px; box-shadow: 0 15px 35px rgba(59, 111, 212, 0.4), 0 5px 15px rgba(0,0,0,0.2); overflow: visible; padding: 0; gap: 0; }
        .kefu-service-item { width: 75px; height: 75px; background: transparent; display: flex; flex-direction: column; align-items: center; justify-content: center; cursor: pointer; transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94); position: relative; color: #ffffff; text-decoration: none; flex-shrink: 0; border: none; gap: 4px; padding: 8px 0; margin:5px 0; }
        .kefu-service-item:not(:last-child)::after { content: ''; position: absolute; bottom: 0; left: 15px; right: 15px; height: 1px; background: rgba(255, 255, 255, 0.3); }
        .kefu-service-item:hover { background: rgba(255, 255, 255, 0.1); color: #ffffff; transform: scale(1.05); box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.1); }
        .kefu-service-item i { font-size: 1.5rem; line-height: 1; pointer-events: none; transition: transform 0.2s; color: #ffffff; }
        .kefu-service-item:hover i { transform: scale(1.15); }
        .kefu-service-item .kefu-item-label { font-size: 12px; font-weight: 500;  pointer-events: none; line-height:2; color: #ffffff; text-align: center; }
        .kefu-service-item .kefu-tooltip { position: absolute; right: 85px; top: 50%; transform: translateY(-50%) scale(0.9); background: #ffffff; color: #1e293b; padding: 16px 20px; border-radius: 12px; font-size: 15px; font-weight: 600; white-space: nowrap; opacity: 0; pointer-events: none; transition: all 0.25s ease; box-shadow: 0 15px 30px rgba(0,0,0,0.15); letter-spacing: 0.3px; border: 1px solid #e2e8f0; z-index: 100; text-align: left; line-height: 1.5; }
        .kefu-service-item .kefu-tooltip::after { content: ""; position: absolute; right: -8px; top: 50%; transform: translateY(-50%); width: 0; height: 0; border-top: 8px solid transparent; border-bottom: 8px solid transparent; border-left: 8px solid #ffffff; }
        .kefu-service-item:hover .kefu-tooltip { opacity: 1; transform: translateY(-50%) scale(1); pointer-events: auto; }
        .kefu-service-item:not(:hover) .kefu-tooltip { opacity: 0; transform: translateY(-50%) scale(0.9); pointer-events: none; }
        .kefu-tooltip .kefu-tooltip-title { display: block; font-size: 13px; font-weight: 500; color: #64748b; margin-bottom: 4px; letter-spacing: 0.5px; }
        .kefu-tooltip .kefu-tooltip-value { display: block; font-size: 16px; font-weight: 700; color: #1e293b; letter-spacing: 0.5px; }
        .kefu-service-item.kefu-qr-item { overflow: visible; }
        .kefu-qr-card { position: absolute; right: 85px; top: 50%; transform: translateY(-50%) scale(0.85); background: white; border-radius: 16px; padding: 18px 18px 16px; box-shadow: 0 20px 40px rgba(0,0,0,0.15); opacity: 0; pointer-events: none; transition: all 0.3s ease; display: flex; flex-direction: column; align-items: center; gap: 10px; width: 180px; border: 1px solid #e2e8f0; z-index: 110; }
        .kefu-qr-card img { width: 140px; height: 140px; object-fit: contain; border-radius: 12px; background: #f8fafc; padding: 8px; border: 1px dashed #cbd5e1; }
        .kefu-qr-card .kefu-qr-text { font-size: 14px; font-weight: 600; color: #1e293b;  padding: 6px 15px; border-radius: 30px; letter-spacing: 0.5px; }
        .kefu-qr-item:hover .kefu-qr-card { opacity: 1; transform: translateY(-50%) scale(1); pointer-events: auto; }
        .kefu-qr-item:not(:hover) .kefu-qr-card { opacity: 0; transform: translateY(-50%) scale(0.85); pointer-events: none; }
        #kefuBackTopBtn { background: transparent; color: #ffffff; border: none; }
        #kefuBackTopBtn:hover { background: rgba(255, 255, 255, 0); color: #ffffff; border: none; }
        @media (max-width: 640px) { .kefu-service-panel { right: 12px; border-radius: 16px; } .kefu-service-item { width: 62px; height: 66px; gap: 3px; } .kefu-service-item i { font-size: 1.3rem; } .kefu-service-item .kefu-item-label { font-size: 9px; } .kefu-service-item .kefu-tooltip { right: 70px; padding: 12px 14px; font-size: 13px; border-radius: 8px; } .kefu-service-item:not(:last-child)::after { left: 10px; right: 10px; } .kefu-qr-card { right: 70px; width: 150px; padding: 12px; border-radius: 12px; } .kefu-qr-card img { width: 100px; height: 100px; } .kefu-tooltip .kefu-tooltip-title { font-size: 11px; } .kefu-tooltip .kefu-tooltip-value { font-size: 14px; } }
     @media (max-width: 768px) { .kefu-service-panel { display: none; } }