/* 容器样式 */
        .survey-container {
            max-width: 600px;
            margin: 8px auto 8px;
            background-color: white;
            padding: 16px;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        
        /* 标题样式 */
        .survey-title {
            font-size: 16px;
            color: #2c3e50;
            margin-bottom: 8px;
            text-align: center;
        }
        
        .survey-description {
            color: #666;
            text-align: center;
            margin-bottom: 12px;
            font-size: 14px;
        }
        
        /* 问题样式 */
        .question {
            margin-bottom: 8px;
        }
        
        .question-text {
            font-size: 18px;
            margin-bottom: 15px;
            color: #34495e;
        }
        
        /* 星级评分样式 */
        .star-rating {
            display: flex;
            gap: 10px;
            justify-content: center;
        }
        
        .star {
            font-size: px;
            color: #d1d5db;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .star:hover {
            transform: scale(1.1);
        }
        
        .star.selected {
            color: #f59e0b;
        }
        
        .star.hover {
            color: #fbbf24;
        }
        
        /* 反馈输入样式 */
        .feedback-container {
            margin-top: 8px;
            transition: all 0.3s ease;
            max-height: 0;
            overflow: hidden;
            opacity: 0;
        }
        
        .feedback-container.required {
            max-height: 300px;
            opacity: 1;
            margin-top: 8px;
        }
        
        .feedback-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            font-size: 14px;
            color: #34495e;
        }
        
        .feedback-textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 6px;
            min-height: 60px;
            font-size: 14px;
            resize: vertical;
            transition: border-color 0.3s ease;
        }
        
        .feedback-textarea:focus {
            outline: none;
            border-color: #3b82f6;
            box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
        }
        
        .required-mark {
            color: #ef4444;
        }
        
        .error-message {
            color: #ef4444;
            font-size: 14px;
            margin-top: 5px;
            display: none;
        }
        
        .error-message.show {
            display: block;
        }
        
        .char-count {
            color: #666;
            font-size: 12px;
            text-align: right;
            margin-top: 5px;
        }
        
        /* 提交按钮样式 */
        .submit-btn {
            background-color: #3b82f6;
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
            margin-top: 10px;
        }
        
        .submit-btn:hover {
            background-color: #2563eb;
            transform: translateY(-2px);
        }
        
        .submit-btn:active {
            transform: translateY(0);
        }
        
        /* 成功提示样式 */
        .success-message {
            display: none;
            background-color: #dcfce7;
            color: #166534;
            padding: 15px;
            border-radius: 6px;
            text-align: center;
            margin-top: 20px;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        /* 响应式调整 */
        @media (max-width: 480px) {
            .survey-container {
                padding: 20px;
                margin: 20px auto;
            }
            
            .star {
                font-size: 28px;
            }
            
            .survey-title {
                font-size: 22px;
            }
        }