* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(135deg, #fff9e6 0%, #e8f0ff 50%, #ffffff 100%);
            min-height: 100vh;
            padding: 20px;
            position: relative;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('https://image.qwenlm.ai/public_source/fbff62f3-2e18-422c-8c95-9a274129db28/1c4655c42-3668-4932-a486-87843430230a.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
            pointer-events: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .header {
            text-align: center;
            margin-bottom: 40px;
            animation: fadeInDown 0.8s ease-out;
        }

        .header h1 {
            font-size: 3em;
            font-weight: 700;
            background: #3e64eb;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 15px;
        }

        .header p {
            font-size: 1.1em;
            color: #666;
            max-width: 800px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .progress-container {
            background: rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 20px;
            margin-bottom: 30px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            animation: fadeIn 1s ease-out;
        }

        .progress-bar {
            width: 100%;
            height: 12px;
            background: rgba(255, 255, 255, 0.5);
            border-radius: 10px;
            overflow: hidden;
            margin-top: 10px;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, #ffd615 0%, #3e64eb 100%);
            border-radius: 10px;
            transition: width 0.5s ease;
            width: 0%;
        }

        .progress-text {
            text-align: center;
            margin-top: 10px;
            font-weight: 600;
            color: #3e64eb;
        }

        .quiz-section {
            display: none;
        }

        .quiz-section.active {
            display: block;
            animation: fadeInUp 0.6s ease-out;
        }

        .form-section {
            background: rgba(255, 255, 255, 0.4);
            backdrop-filter: blur(20px);
            border-radius: 25px;
            padding: 40px;
            margin-bottom: 30px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.5);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .form-section:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
        }

        .section-title {
            font-size: 1.8em;
            font-weight: 700;
            color: #3e64eb;
            margin-bottom: 25px;
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .section-number {
            background: linear-gradient(135deg, #ffd615 0%, #3e64eb 100%);
            color: white;
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2em;
            font-weight: 700;
        }

        .form-group {
            margin-bottom: 25px;
        }

        .form-group label {
            display: block;
            font-weight: 600;
            color: #333;
            margin-bottom: 10px;
            font-size: 1.05em;
        }

        .form-group input[type="text"],
        .form-group input[type="email"],
        .form-group input[type="tel"],
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 15px;
            border: 2px solid rgba(62, 100, 235, 0.2);
            border-radius: 15px;
            font-size: 1em;
            font-family: 'Inter', sans-serif;
            background: rgba(255, 255, 255, 0.6);
            transition: all 0.3s ease;
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #3e64eb;
            background: rgba(255, 255, 255, 0.9);
            box-shadow: 0 0 0 3px rgba(62, 100, 235, 0.1);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        .checkbox-group {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 15px;
            margin-top: 15px;
        }

        .checkbox-item {
            display: flex;
            align-items: center;
            padding: 15px;
            background: rgba(255, 255, 255, 0.5);
            border-radius: 12px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }

        .checkbox-item:hover {
            background: rgba(255, 255, 255, 0.8);
            border-color: rgba(62, 100, 235, 0.3);
            transform: scale(1.02);
        }

        .checkbox-item input[type="checkbox"] {
            width: 20px;
            height: 20px;
            margin-right: 12px;
            cursor: pointer;
            accent-color: #3e64eb;
        }

        .checkbox-item label {
            cursor: pointer;
            font-weight: 500;
            color: #555;
            margin: 0;
        }

        .radio-group {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 15px;
        }

        .radio-item {
            display: flex;
            align-items: center;
            padding: 15px;
            background: rgba(255, 255, 255, 0.5);
            border-radius: 12px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }

        .radio-item:hover {
            background: rgba(255, 255, 255, 0.8);
            border-color: rgba(62, 100, 235, 0.3);
        }

        .radio-item input[type="radio"] {
            width: 20px;
            height: 20px;
            margin-right: 12px;
            cursor: pointer;
            accent-color: #3e64eb;
        }

        .navigation-buttons {
            display: flex;
            gap: 15px;
            margin-top: 30px;
        }

        .nav-btn {
            flex: 1;
            padding: 18px;
            border: none;
            border-radius: 20px;
            font-size: 1.1em;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .nav-btn.prev {
            background: rgba(255, 255, 255, 0.6);
            color: #3e64eb;
            border: 2px solid #3e64eb;
        }

        .nav-btn.prev:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-2px);
        }

        .nav-btn.next {
            background: #3e64eb;
            color: white;
            box-shadow: 0 8px 25px rgba(62, 100, 235, 0.3);
        }

        .nav-btn.next:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(62, 100, 235, 0.4);
        }

        .nav-btn:active {
            transform: translateY(-1px);
        }

        .submit-btn {
            width: 100%;
            padding: 20px;
            background: linear-gradient(135deg, #ffd615 0%, #3e64eb 100%);
            color: white;
            border: none;
            border-radius: 20px;
            font-size: 1.2em;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 8px 25px rgba(62, 100, 235, 0.3);
            margin-top: 20px;
        }

        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(62, 100, 235, 0.4);
        }

        .submit-btn:active {
            transform: translateY(-1px);
        }

        .contact-info {
            text-align: center;
            margin-top: 30px;
            padding: 30px;
            background: rgba(255, 255, 255, 0.4);
            backdrop-filter: blur(20px);
            border-radius: 25px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
        }

        .contact-info h3 {
            color: #3e64eb;
            margin-bottom: 15px;
            font-size: 1.5em;
        }

        .contact-info a {
            color: #3e64eb;
            text-decoration: none;
            font-weight: 600;
            transition: color 0.3s ease;
        }

        .contact-info a:hover {
            color: #ffd615;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @media (max-width: 768px) {
            .header h1 {
                font-size: 2em;
            }

            .form-section {
                padding: 25px;
            }

            .section-title {
                font-size: 1.4em;
            }

            .checkbox-group {
                grid-template-columns: 1fr;
            }

            .navigation-buttons {
                flex-direction: column;
            }
        }