/* 提示浮层 */
        .toast-message {
            position: fixed;
            bottom: 80px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(6px);
            color: #fff;
            padding: 10px 24px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 400;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0,0,0,0.3);
            pointer-events: none;
            opacity: 0;
            transition: opacity 0.4s ease;
            font-family: 'Inter', 'Segoe UI', sans-serif;
            white-space: nowrap;
        }
        .toast-message.show {
            opacity: 1;
        }

        @media(max-width:600px){
        .cesium-viewer-bottom {
            left: 8px !important;
        }
        .cesium-credit-text {
            display:none;
        }
        }