* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "微软雅黑", sans-serif;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
        }
        .container {
            background-color: #fff;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
            width: 400px;
        }
        h1 {
            text-align: center;
            color: #ff6b6b;
            margin-bottom: 20px;
        }
        .subtitle {
            text-align: center;
            color: #666;
            margin-bottom: 30px;
        }
        .progress {
            height: 5px;
            background-color: #e0e0e0;
            margin-bottom: 20px;
            border-radius: 3px;
            overflow: hidden;
        }
        .progress-bar {
            height: 100%;
            background: linear-gradient(90deg, #ff6b6b, #4ecdc4);
            width: 0;
            transition: width 0.5s ease;
        }
        .question {
            margin-bottom: 20px;
        }
        .question-title {
            font-size: 18px;
            margin-bottom: 15px;
            text-align: center;
        }
        .options {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        button {
            padding: 10px;
            border: none;
            border-radius: 5px;
            background-color: #e0e0e0;
            cursor: pointer;
            font-size: 16px;
            transition: background-color 0.3s ease;
            outline: none !important;
            -webkit-tap-highlight-color: transparent;
        }
        button:hover {
            background-color: #4ecdc4;
            color: #fff;
        }
        .back-btn {
            background-color: #f8f9fa;
            border: 1px solid #dee2e6;
            color: #6c757d;
        }
        .back-btn:hover {
            background-color: #6c757d;
            color: #fff;
        }
        *:focus {
            outline: none !important;
        }
        .loading {
            text-align: center;
            display: none;
        }
        .loading-text {
            margin-top: 10px;
            color: #666;
        }
        .result {
            text-align: center;
            display: none;
        }
        .result-text {
            font-size: 24px;
            color: #ff6b6b;
            margin-bottom: 20px;
        }