/* 拼豆 - 各 section 容器 */

.upload-section {
            margin: 20px 0;
            text-align: center;
        }

#fileInput {
            margin: 10px 0;
            padding: 10px;
            border: 2px dashed #FFB3B3;
            border-radius: 8px;
            background-color: #FFF9F9;
            width: 80%;
            transition: all 0.3s ease;
        }

#fileInput:hover {
            border-color: #FF6B6B;
            background-color: #FFF0F0;
        }

.density-section {
            text-align: center;
            margin: 20px 0;
            background-color: #FFF0E6;
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #FFD9B3;
        }

.density-section h3 {
            color: #FF8C8C;
            margin-bottom: 10px;
            font-family: 'Press Start 2P', cursive;
            font-size: 14px;
        }

.palette-section {
            text-align: center;
            margin: 20px 0;
            background-color: #F0FFF0;
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #D9FFD9;
        }

.palette-section h3 {
            color: #198119;
            margin-bottom: 10px;
            font-family: 'Press Start 2P', cursive;
            font-size: 14px;
        }

.brand-section {
            text-align: center;
            margin: 20px 0;
            background-color: #F0F0FF;
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #D9D9FF;
        }

.brand-section h3 {
            color: #5050C8;
            margin-bottom: 10px;
            font-family: 'Press Start 2P', cursive;
            font-size: 14px;
        }

.preview-section {
            display: flex;
            justify-content: space-around;
            margin: 30px 0;
            flex-wrap: wrap;
        }

.button-section {
            text-align: center;
            margin: 20px 0;
        }

.pixelation-section,
.merge-section {
            margin: 12px 0;
}

.pixelation-section select,
.merge-section input[type="range"] {
            width: 100%;
            max-width: 320px;
            font-family: inherit;
            font-size: 14px;
}

.merge-section small {
            color: #888;
            font-size: 12px;
            display: block;
            margin-top: 4px;
}