.preview-area {
            background: #f8f9fc;
            border-radius: 1rem;
            padding: 1rem;
            margin-top: 1.5rem;
            border: 1px solid rgba(0,0,0,0.08);
        }
        .original-img-container {
            text-align: center;
            margin-bottom: 1.5rem;
            background: #fff;
            border-radius: 1rem;
            padding: 1rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.03);
        }
        .original-img-container img {
            max-width: 100%;
            max-height: 320px;
            object-fit: contain;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .tiles-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: flex-start;
            margin-top: 1rem;
            max-height: 520px;
            overflow-y: auto;
            padding: 0.5rem;
            background: #fefefe;
            border-radius: 1rem;
            border: 1px solid #e9ecef;
        }
        .tile-card {
            background: white;
            border-radius: 12px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
            transition: transform 0.1s ease;
            width: 110px;
            text-align: center;
            padding: 0.5rem;
            border: 1px solid #edf2f7;
        }
        .tile-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 18px rgba(0,0,0,0.1);
        }
        .tile-card img {
            width: 100%;
            height: auto;
            border-radius: 6px;
            background: #f1f3f5;
        }
        .tile-label {
            font-size: 0.7rem;
            font-weight: 600;
            margin-top: 0.4rem;
            font-family: monospace;
            color: #2c3e66;
        }
        .btn-split {
            background: linear-gradient(135deg, #2c3e66 0%, #1a2a44 100%);
            border: none;
            font-weight: 600;
            padding: 0.6rem 1.8rem;
        }
        .info-badge {
            background: #eef2ff;
            border-radius: 40px;
            padding: 0.2rem 0.8rem;
            font-size: 0.8rem;
            color: #1f3a8a;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .dimension-warning {
            font-size: 0.75rem;
            color: #c2410c;
        }
        .action-buttons {
            gap: 0.8rem;
        }
        .stats-row {
            background: #f1f5f9;
            border-radius: 14px;
            padding: 0.6rem 1rem;
            margin: 1rem 0;
        }
        .method-badge {
            background: #e9ecef;
            color: #1e293b;
        }
        .feature-icon {
            color: #2c3e66;
        }
        @media (max-width: 768px) {
            .tile-card { width: 85px; }
        }
.author-bio{display:block}.form-label{font-size:0.8rem}