body {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        .main-container {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(10px);
        }
        
        .user-slider {
            margin: 20px 0;
        }
        
        .user-card {
            background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            color: white;
            border: none;
            border-radius: 15px;
            margin: 0 10px;
            transition: transform 0.3s ease;
            cursor: pointer;
        }
        
        .user-card:hover {
            transform: translateY(-5px);
        }
        
        .user-card.selected {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            transform: scale(1.05);
        }
        
        .function-section {
            background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            border-radius: 15px;
            color: white;
            margin: 20px 0;
        }
        
        .result-section {
            background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
            border-radius: 15px;
            border: none;
        }
        
        .btn-ai {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border: none;
            border-radius: 25px;
            padding: 12px 30px;
            font-weight: bold;
            transition: all 0.3s ease;
        }
        
        .btn-ai:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }
        
        .slick-dots li button:before {
            color: #667eea;
            font-size: 12px;
        }
        
        .slick-prev:before,
        .slick-next:before {
            color: #667eea;
        }
        
        .loading-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 9999;
        }
        
        .loading-content {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: white;
            padding: 30px;
            border-radius: 15px;
            text-align: center;
        }
        
        .spinner {
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        /* カスタムスライダースタイル */
        .user-slider .slick-center .user-card {
            transform: scale(1.05);
            z-index: 10;
            transition: all 0.3s ease;
        }
        
        .user-slider .user-card {
            transform: scale(0.95);
            opacity: 0.8;
            transition: all 0.3s ease;
            margin: 0 5px;
        }
        
        .user-slider .user-card.selected {
            border: 2px solid #007bff !important;
            box-shadow: 0 4px 15px rgba(0, 123, 255, 0.2) !important;
        }
        
        .user-slider .slick-center .user-card {
            opacity: 1;
        }
        
        .user-card {
            cursor: pointer;
            border: 2px solid #e9ecef;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        
        .user-card:hover {
            transform: scale(1.02);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }
        
        /* 固定スクロールボタン */
        .fixed-scroll-buttons {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        
        .btn-scroll {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, #007bff, #0056b3);
            border: none;
            color: white;
            font-size: 16px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
            transition: all 0.3s ease;
            text-decoration: none;
        }
        
        .btn-scroll:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 16px rgba(0, 123, 255, 0.4);
            color: white;
        }
        
        .btn-scroll i {
            font-size: 18px;
            margin-bottom: 2px;
        }
        
        .btn-scroll span {
            font-size: 10px;
            font-weight: bold;
            line-height: 1;
        }
        
        /* レスポンシブ対応 */
        @media (max-width: 768px) {
            .fixed-scroll-buttons {
                bottom: 15px;
                right: 15px;
            }
            
            .btn-scroll {
                width: 50px;
                height: 50px;
                font-size: 14px;
            }
            
            .btn-scroll i {
                font-size: 16px;
            }
            
            .btn-scroll span {
                font-size: 9px;
            }
        }