#imgColorTuner_container *{box-sizing:border-box;margin:0;padding:0;}
        #imgColorTuner_container,#imgColorTuner_controls,#imgColorTuner_controlsGrid,#imgColorTuner_previewArea{max-width:100% !important;}
        #imgColorTuner_uploadZone{width:100% !important;height:200px;border:2px dashed #d1d5db;border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;transition:all 0.25s ease;background:linear-gradient(135deg,#fafbfc 0%,#f3f4f6 100%);}
        #imgColorTuner_uploadZone:hover{border-color:#6366f1;background:linear-gradient(135deg,#eef2ff 0%,#e0e7ff 100%);}
        #imgColorTuner_uploadZone.dragover{border-color:#6366f1;background:linear-gradient(135deg,#eef2ff 0%,#e0e7ff 100%);transform:scale(1.01);box-shadow:0 2px 8px rgba(99,102,241,0.3);}
        #imgColorTuner_uploadZone svg{width:48px;height:48px;fill:#9ca3af;margin-bottom:16px;transition:fill 0.25s;}
        #imgColorTuner_uploadZone:hover svg{fill:#6366f1;}
        #imgColorTuner_uploadZone p{color:#6b7280;font-size:15px;font-weight:500;}
        #imgColorTuner_uploadZone input{display:none;}
        #imgColorTuner_controls{width:100% !important;display:none;}
        #imgColorTuner_controlsGrid{display:grid !important;grid-template-columns:1fr !important;gap:16px 12px !important;}
        @media (min-width:500px){#imgColorTuner_controlsGrid{grid-template-columns:repeat(2,1fr) !important;}}
        @media (min-width:800px){#imgColorTuner_controlsGrid{grid-template-columns:repeat(4,1fr) !important;gap:20px 16px !important;}}
        .imgColorTuner_controlItem{display:flex;flex-direction:column;gap:10px;}
        .imgColorTuner_controlItem.hidden{display:none;}
        .imgColorTuner_controlItem label{font-size:14px;color:#6b7280;display:flex;justify-content:space-between;align-items:center;font-weight:500;}
        .imgColorTuner_controlItem label span{color:#374151;font-weight:600;font-variant-numeric:tabular-nums;min-width:50px;text-align:right;}
        .imgColorTuner_controlItem input[type="range"]{width:100%;height:8px;border-radius:4px;background:#e5e7eb;outline:none;-webkit-appearance:none;transition:background 0.2s;}
        .imgColorTuner_controlItem input[type="range"]:hover{background:#d1d5db;}
        .imgColorTuner_controlItem input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#6366f1 0%,#8b5cf6 100%);cursor:pointer;border:3px solid #fff;box-shadow:0 2px 8px rgba(99,102,241,0.35);transition:transform 0.15s,box-shadow 0.15s;}
        .imgColorTuner_controlItem input[type="range"]::-webkit-slider-thumb:hover{transform:scale(1.1);box-shadow:0 3px 12px rgba(99,102,241,0.45);}
        .imgColorTuner_controlItem input[type="range"]::-moz-range-thumb{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#6366f1 0%,#8b5cf6 100%);cursor:pointer;border:3px solid #fff;box-shadow:0 2px 8px rgba(99,102,241,0.35);}
        #imgColorTuner_btnGroup{width:100%;margin-top:20px;display:none;gap:16px;flex-wrap:wrap;}
        .imgColorTuner_btn{padding:20px 36px;border-radius:14px;font-size:18px;font-weight:700;cursor:pointer;transition:all 0.2s ease;border:1px solid #e5e7eb;background:#fff;color:#374151;flex:1;min-width:140px;min-height:60px;letter-spacing:0.5px;display:flex;align-items:center;justify-content:center;}
        @media (min-width:600px){.imgColorTuner_btn{padding:18px 40px;font-size:16px;flex:none;min-height:46px;}}
        .imgColorTuner_btn:hover{background:#f9fafb;border-color:#d1d5db;transform:translateY(-1px);}
        .imgColorTuner_btn.primary{background:linear-gradient(135deg,#6366f1 0%,#8b5cf6 100%);color:#fff;border:none;box-shadow:0 4px 16px rgba(99,102,241,0.4);}
        .imgColorTuner_btn.primary:hover{box-shadow:0 6px 24px rgba(99,102,241,0.5);transform:translateY(-3px);}
        .imgColorTuner_btn:disabled{opacity:0.5;cursor:not-allowed;transform:none;}
        #imgColorTuner_previewArea{width:100%;margin-top:20px;display:none;}
        #imgColorTuner_previewWrapper{pointer-events: none;-webkit-user-drag: none;width:100%;overflow:auto;border:1px solid #e5e7eb;border-radius:14px;display:flex;align-items:center;justify-content:center;background:repeating-conic-gradient(#f9fafb 0% 25%,#fff 0% 50%) 50%/20px 20px;min-height:200px;position:relative;}
        @media(min-width:600px){#imgColorTuner_previewWrapper{min-height:240px;}}
        #imgColorTuner_preview,#imgColorTuner_previewCanvas{max-width:100%;height:auto;display:block;}
        #imgColorTuner_status{width:100%;margin-top:14px;font-size:14px;color:#6b7280;text-align:center;display:none;font-weight:500;}
        #imgColorTuner_loading{width:100%;padding:50px 0;display:none;flex-direction:column;align-items:center;gap:18px;}
        .imgColorTuner_spinner{width:48px;height:48px;border:3px solid #e5e7eb;border-top-color:#6366f1;border-radius:50%;animation:imgColorTuner_spin 0.8s linear infinite;}
        @keyframes imgColorTuner_spin{to{transform:rotate(360deg);}}