/* 弹窗样式 */
        .announcement-modal {
            position: fixed;
            bottom: 10px;
            left: 10px;
            width: 380px;
            max-width: 90vw;
            background: white;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            z-index: 1000;
            overflow: hidden;
            transform: translateX(-150%);
            transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.1);
        }
        
        .announcement-modal.show {
            transform: translateX(0);
        }
        
        .modal-header {
            background: linear-gradient(135deg, #3498db, #8e44ad);
            color: white;
            padding: 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .modal-header h2 {
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .close-btn {
            background: rgba(255, 255, 255, 0.2);
            border: none;
            color: white;
            width: 23px;
            height: 23px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }
        
        .close-btn:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: rotate(90deg);
        }
        
        .modal-body {
            padding: 25px;
        }
        .fa-times img{height:23px;}
          
        .modal-body {
            padding: 20px;
        }
        
        .modal-body p {
            margin-bottom: 10px;
            color: #555;
            line-height: 1.5;
            text-align: justify;
        }
        
        .modal-body ul {
            margin-left: 20px;
            margin-bottom: 20px;
        }
        
        .modal-body li {
            margin-bottom: 8px;
        }
        
        .modal-body strong {
            color: #2c3e50;
        }
        
        .modal-footer {
            padding: 0 25px 25px;
            display: flex;
            justify-content: center;
        }
        
        .modal-footer .btn {
            padding: 12px 30px;
            font-size: 1rem;
            background: #3498db;
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .modal-footer .btn:hover {
            background: #2980b9;
            transform: translateY(-2px);
        }
        
        .checkbox-container {
            display: flex;
            align-items: center;
            font-size: 0.9rem;
            color: #7f8c8d;
            margin-top: 20px;
        }
        
        .checkbox-container input {
            margin-right: 8px;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .announcement-modal {
                left: 10px;
                bottom: 10px;
                width: calc(100vw - 40px);
            }
            
            .modal-footer {
                flex-direction: column;
                gap: 10px;
            }
            
            .modal-footer .btn {
                width: 100%;
                justify-content: center;
            }
        }