/* 浮动按钮样式 */
        .floating-btn {
            position: fixed;
            top: 15px;
            right: 15px;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: linear-gradient(135deg, #6a11cb00 0%, #2575fc00 100%);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 1000;
            transition: all 0.3s ease;
        }
        
        .floating-btn:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 25px rgba(0, 0, 0, 0.35);
        }
        
        .floating-btn i {
            color: white;
            font-size: 24px;
        }
        
        /* 弹窗样式 */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            display: flex;
            justify-content: center;
            align-items: flex-start;
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        
        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        
        .modal-content {
            background: white;
            width: 90%;
            max-width: 800px;
            border-radius: 12px;
            margin-top: 80px;
            padding: 7px;
            max-height: 70vh;
            overflow-y: auto;
            transform: translateY(-50px);
            transition: transform 0.4s ease;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            position: relative;
        }
        
        .modal-overlay.active .modal-content {
            transform: translateY(0);
        }
        
        .image-container {
            display: flex;
            flex-direction: column;
            gap: 2px;
            margin-top: 0px;
        }
        
        .image-item {
            display: block;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            text-decoration: none;
            width: 100%; /* 图片宽度为弹窗的95% */
            margin: 0 auto;
        }
        
        .image-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }
        
        .image-item img {
            width: 100%;
            height: auto;
            display: block;
        }
        
        /* 底部关闭按钮 */
        .modal-footer {
            display: flex;
            justify-content: center;
            margin-top: 4px;
            padding-top: 6px;
            border-top: 1px solid #eee;
        }
        
        .close-bottom-btn {
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            border: none;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        }
        
        .close-bottom-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.25);
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .floating-btn {
                width: 40px;
                height: 40px;
                top: 8px;
                right: 8px;
            }
            
            .floating-btn i {
                font-size: 20px;
            }
            
            .modal-content {
                width: 95%;
                margin-top: 60px;
                padding: 9px;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            .card-title, .prediction-title {
                font-size: 1.5rem;
            }
            
            .number, .bonus-number {
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
            }
        }