body {
            min-height: 100vh;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.5;
            color: #333;
            background-color: #f5f7ff;
            background-image: url("https://img.xyttkx.cn/background.webp");
            background-repeat: no-repeat;
            background-size: cover;
            background-position: center;
            padding: 20px 10px;
            display: flex;
            justify-content: center;
            margin: 0;
        }

        :root {
            --primary-color: #4361ee;
            --secondary-color: #3f37c9;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --success-color: #4caf50;
            --warning-color: #ff9800;
            --danger-color: #f44336;
            --border-radius: 6px;
            --box-shadow: 0 1px 6px rgba(0, 0, 0, 0.1);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        .page-wrapper {
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 100%;
            max-width: 400px;
            gap: 20px;
        }
        
        .header-container {
            text-align: center;
            background: rgba(255, 255, 255, 0.5);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 15px;
            width: 100%;
        }
        
        .header-container h1 {
            color: var(--primary-color);
            margin-bottom: 6px;
            font-size: 24px;
        }
        
        .header-container p {
            font-size: 14px;
            color: #666;
            margin: 4px 0;
        }
        
        .main-container {
            width: 100%;
            background: rgba(255, 255, 255, 0.5);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 15px;
        }
        
        .upload-section {
            border: 2px dashed #ccc;
            border-radius: var(--border-radius);
            padding: 15px 10px;
            text-align: center;
            margin-bottom: 15px;
            transition: all 0.3s ease;
            background-color: var(--light-color);
        }
        
        .upload-section p {
            font-size: 12px;
            margin-bottom: 8px;
        }
        
        .upload-section:hover, .upload-section.dragover {
            border-color: var(--primary-color);
            background-color: rgba(67, 97, 238, 0.05);
        }
        
        .btn {
            display: inline-block;
            padding: 6px 12px;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 12px;
            transition: all 0.3s ease;
            margin: 3px;
        }
        
        .btn:hover {
            background-color: var(--secondary-color);
        }
        
        .btn:disabled {
            background-color: #ccc;
            cursor: not-allowed;
        }
        
        .settings-panel {
            background-color: var(--light-color);
            border-radius: var(--border-radius);
            padding: 10px;
            margin-bottom: 15px;
        }
        
        .settings-panel h2, .selected-files h2, .results-section h2 {
            font-size: 14px;
            margin-bottom: 8px;
            color: var(--dark-color);
        }
        
        .setting-group {
            margin-bottom: 8px;
        }
        
        label {
            display: block;
            margin-bottom: 4px;
            font-weight: 500;
            font-size: 12px;
        }
        
        input[type="range"] {
            width: 100%;
            height: 5px;
            border-radius: 3px;
            background: #ddd;
            outline: none;
            -webkit-appearance: none;
        }
        
        input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary-color);
            cursor: pointer;
        }
        
        select {
            width: 100%;
            padding: 6px;
            border-radius: var(--border-radius);
            border: 1px solid #ddd;
            font-size: 12px;
        }
        
        .quality-value {
            display: inline-block;
            width: 35px;
            text-align: right;
            font-weight: bold;
            font-size: 12px;
        }
        
        .selected-files {
            margin-top: 12px;
        }
        
        .files-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
            gap: 8px;
            margin-top: 8px;
        }
        
        .file-card {
            border: 1px solid #eee;
            border-radius: var(--border-radius);
            padding: 6px;
            background: white;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .file-preview {
            width: 100%;
            height: 80px;
            object-fit: contain;
            margin-bottom: 6px;
            background-color: #f8f9fa;
            border-radius: 3px;
        }
        
        .file-info {
            font-size: 12px;
            color: #666;
            margin-bottom: 3px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            text-align: center;
            width: 100%;
        }
        
        .file-actions {
            display: flex;
            justify-content: center;
            width: 100%;
        }
        
        .remove-btn {
            background: none;
            border: none;
            color: var(--danger-color);
            cursor: pointer;
            font-size: 12px;
        }
        
        .results-section {
            margin-top: 15px;
        }
        
        .results-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 10px;
            margin-top: 8px;
        }
        
        .image-card {
            border: 1px solid #eee;
            border-radius: var(--border-radius);
            padding: 8px;
            background: white;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .image-preview {
            width: 100%;
            height: 120px;
            object-fit: contain;
            margin-bottom: 6px;
            background-color: #f8f9fa;
            border-radius: 3px;
        }
        
        .image-info {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            color: #666;
            margin-bottom: 6px;
            width: 100%;
        }
        
        .compression-rate {
            font-weight: 500;
            color: var(--success-color);
        }
        
        .download-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            padding: 4px 8px;
            cursor: pointer;
            font-size: 12px;
            transition: all 0.3s ease;
        }
        
        .download-btn:hover {
            background-color: var(--secondary-color);
        }
        
        .progress-container {
            width: 100%;
            background-color: #e9ecef;
            border-radius: var(--border-radius);
            height: 6px;
            margin-bottom: 6px;
            overflow: hidden;
        }
        
        .progress-bar {
            height: 100%;
            background-color: var(--primary-color);
            width: 0%;
            border-radius: var(--border-radius);
            transition: width 0.5s ease-out;
        }
        
        .progress-info {
            font-size: 12px;
            color: #666;
        }
        
        .hidden {
            display: none;
        }
        
        .batch-actions {
            margin-top: 12px;
            text-align: center;
        }
        
        .empty-state {
            text-align: center;
            padding: 12px;
            color: #666;
            font-size: 12px;
        }
        
        .copyright {
            margin-top: 15px;
            padding-top: 8px;
            border-top: 1px solid #eee;
            text-align: center;
            font-size: 12px;
            color: #999;
            line-height: 1.4;
        }
        
        @media (max-width: 480px) {
            .page-wrapper {
                max-width: 100%;
            }
            
            .files-grid {
                grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
                gap: 6px;
            }
            
            .results-grid {
                grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
                gap: 6px;
            }
            
            .header-container h1 {
                font-size: 20px;
            }
            
            .file-card, .image-card {
                padding: 4px;
            }
            
            .file-preview, .image-preview {
                height: 60px;
            }
            
            .file-info, .image-info, .remove-btn, .download-btn {
                font-size: 10px;
            }
            .copyright .copyright-main {
                font-size: 14px;
                color: #999;
                font-weight: 500; 
            }
        }

        @media (min-width: 768px) {
            .page-wrapper {
                max-width: 1000px;
                gap: 30px;
                padding: 30px 0;
            }

            .header-container {
                padding: 25px;
            }
            .header-container h1 {
                font-size: 28px;
                margin-bottom: 12px;
            }
            .header-container p {
                font-size: 16px;
                margin: 6px 0;
                max-width: 800px;
                margin-left: auto;
                margin-right: auto;
            }

            .main-container {
                padding: 25px;
            }

            .upload-section {
                padding: 25px 15px;
                margin-bottom: 25px;
            }
            .upload-section p {
                font-size: 16px;
                margin-bottom: 12px;
            }
            .btn {
                padding: 8px 18px;
                font-size: 14px;
                margin: 5px;
            }

            .settings-panel {
                padding: 18px;
                margin-bottom: 25px;
            }
            .settings-panel h2, .selected-files h2, .results-section h2 {
                font-size: 16px;
                margin-bottom: 12px;
            }
            label {
                font-size: 14px;
                margin-bottom: 6px;
            }
            input[type="range"] {
                height: 6px;
            }
            input[type="range"]::-webkit-slider-thumb {
                width: 18px;
                height: 18px;
            }
            select {
                padding: 8px;
                font-size: 14px;
            }
            .quality-value {
                font-size: 14px;
                width: 45px;
            }

            .selected-files {
                margin-top: 20px;
            }
            .files-grid {
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
                gap: 15px;
                margin-top: 15px;
            }
            .file-card {
                padding: 12px;
                box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            }
            .file-preview {
                height: 120px;
                margin-bottom: 10px;
            }
            .file-info {
                font-size: 14px;
                margin-bottom: 5px;
            }
            .remove-btn {
                font-size: 14px;
                padding: 4px 8px;
            }

            .results-section {
                margin-top: 20px;
            }
            .results-grid {
                grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
                gap: 15px;
                margin-top: 15px;
            }
            .image-card {
                padding: 15px;
                box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            }
            .image-preview {
                height: 160px;
                margin-bottom: 12px;
            }
            .image-info {
                font-size: 14px;
                margin-bottom: 10px;
            }
            .download-btn {
                font-size: 14px;
                padding: 6px 15px;
            }

            .progress-container {
                height: 8px;
                margin-bottom: 10px;
            }
            .progress-info {
                font-size: 14px;
            }

            .copyright {
                margin-top: 25px;
                font-size: 13px;
            }
        }